Mitsubishi Electric PUHY-P168 Page 320 Service Handbook Download | Manualshive

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[

IX

Troubleshooting ]

1

Although cooling operation
starts with the normal remote
controller display, the capacity
is not enough.

4. Long piping length

The cooling capacity varies great-
ly depending on the pressure
loss. (When the pressure loss is
large, the cooling capacity drops.)

Confirm that the characteristic of capacity
drop due to piping length.
The piping pressure loss can be assumed
by temperature difference between the heat
exchanger inlet temperature (TH22) and
TH2 (Te). -> Change the pipe.

5. Piping size is not proper (thin)

6. Insufficient refrigerant amount

Protection works and compressor
frequency does not rise due to
high discharge temperature.

Refer to 1-1. (Compressor frequency does
not rise sufficiently.)Refer to the page on re-
frigerant amount adjustment

7. Clogging by foreign object

Check the temperature difference between
in front of and behind the place where the
foreign object is clogging the pipe (up-
stream side and downstream side). When
the temperature drops significantly, the for-
eign object may clog the pipe.
-> Remove the foreign object inside the
pipe.

8. The indoor unit inlet temperature

is excessively. (Less than 15°C
[59°F] WB

Check the inlet air temperature and for short
cycling. Change the environment where the
indoor unit is used.

9. Compressor failure

The amount of circulating refriger-
ant decreases due to refrigerant
leak in the compressor.

Check the discharge temperature to deter-
mine if the refrigerant leaks, as it rises if
there is a leak.

10.LEV1 malfunction

Sufficient liquid refrigerant is not
be supplied to the indoor unit as
sufficient sub cool cannot be se-
cured due to LEV1 malfunction.

Refer to the page of LEV troubleshooting (9.
[4] -6- ).
It most likely happens when there is little dif-
ference or no difference between TH5 and
TH7.

11.TH5, TH7 and HPS sensor fail-

ure or faulty wiring
LEV1 is not controlled normally.

Check the thermistor.

Check wiring.

Phenomena

Cause

Check method and remedy

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Summary of Contents for PUHY-P168

Page 1: ...UCHI CHIYODA KU TOKYO 100 8310 JAPAN Service Handbook PUHY P72 P96 P108 P126 P144TGMU A PUHY P168 P192 P204 P216 P234TGMU A PURY P72 P96 P108 P126 P144TGMU A PURY P168 P192 P204 P216 P234TGMU A Issued in Oct 2005 HWE05020 New publication effective Oct 2005 Specifications subject to change without notice Service Handbook PURY P72 P96 P108 P126 P144 P168 P192 P204 P216 P234TGMU A PUHY P72 P96 P108 P...

Page 2: ... cables may produce heat and start a fire Take appropriate safety measures against strong winds and earthquakes to prevent the unit from falling If the unit is not installed properly the unit may fall and cause serious injury to the person or damage to the unit Do not make any modifications or alterations to the unit Consult your dealer for repair Improper repair may result in water leakage electr...

Page 3: ...in stalling the unit Leaked refrigerant gas exceeding the lim iting concentration causes oxygen deficiency Consult your dealer or a specialist when moving or re installing the unit Improper installation may result in water leakage electric shock and or fire After completing the service work check for a gas leak If leaked refrigerant is exposed to a heat source such as a fan heater stove or electri...

Page 4: ...rigerant is charged into the system the com position of the refrigerant in the cylinder will change and may result in performance loss Use a vacuum pump with a reverse flow check valve If a vacuum pump that is not equipped with a reverse flow check valve is used the vacuum pump oil may flow into the refrigerant cycle and cause the refrigerating machine oil to deteriorate Prepare tools for exclusiv...

Page 5: ...Doing so may lead to a remark able drop in performance electric shock malfunctions smoke and or fire The presence of organic solvents or corrosive gas i e am monia sulfur compounds and acid may cause gas leak age or water leakage When installing the unit in a hospital take appropriate measures to reduce noise interference High frequency medical equipment may interfere with the normal operation of ...

Page 6: ...se breakers and fuses current breaker remote switch switch Type B fuse moulded case circuit breaker with the proper current capacity The use of wrong capacity fuses steel wires or copper wires may result in malfunctions smoke and or fire Do not spray water on the air conditioner or immerse the air conditioner in water Otherwise electric shock and or fire may result Periodically check the installat...

Page 7: ...nit such as pipes and compressor may be either very cold or hot depending on the state of the refrigerant in the unit at the time To reduce the risk of frost bites and burns do not touch these parts with bare hands Do not operate the unit without panels and safety guards Rotating high temperature or high voltage parts on the unit pose a risk of burns and or electric shock Do not turn off the power...

Page 8: ...ontrol Box of the Outdoor Unit 79 3 Outdoor Unit Circuit Board 81 4 BC Controller Under the panel 86 5 Control Box of the BC Controller 88 6 BC Controller Circuit Board 89 IV Remote Controller 1 Functions and Specifications of MA and ME Remote Controllers 93 2 Group Settings and Interlock Settings via the ME Remote Controller 94 3 Interlock Settings via the MA Remote Controller 98 4 Using the buil...

Page 9: ...Shape Noise 314 4 Troubleshooting Principal Parts 317 5 Refrigerant Leak 350 6 Compressor Replacement Instructions only P168 P234 types 351 7 Collecting the Cooling Liquid from the Accumulator Only P168 P234 types 353 8 Servicing the BC controller 354 X LED monitor display on the outdoor unit board 1 How to read the LED on the service monitor 361 ...

Page 10: ...als 5 4 Storage of Piping 7 5 Pipe Processing 7 6 Brazing 8 7 Air Tightness Test 9 8 Vacuum Drying Evacuation 10 9 Refrigerant Charging 11 10 Remedies to be taken in case of a Refrigerant Leak 11 11 Characteristics of the Conventional and the New Refrigerants 12 12 Notes on Refrigerating Machine Oil 13 ...

Page 11: ... 2 ...

Page 12: ...ipes Verify the type of refrigerant used for the unit to be moved or re placed Use refrigerant pipes made of phosphorus deoxidized copper Keep the inner and outer surfaces of the pipes clean and free of such contaminants as sulfur oxides dust dirt shaving particles oil and water These types of contaminants inside the refrigerant pipes may cause the refrigerant oil to deteriorate 6 If there is a le...

Page 13: ...nder is pink Charging Port on the Refrigerant Cylinder Refrigerant charging The charge port diameter is larger than that of the current port Flare Nut Connection of the unit with the pipes Use Type 2 Flare nuts Tools Materials Use Notes Gas Leak Detector Gas leak detection The ones for use with HFC refrigerant may be used Vacuum Pump Vacuum drying May be used if a check valve adapter is attached F...

Page 14: ...less than ø19 05 3 4 For a system that uses R410A use pipes that are made with 1 2H material H material Drawn unless the pipe diameter is at least ø19 05 3 4 and the radial thickness is at least 1 2t The figures in the radial thickness column are based on the Japanese standards and provided only as a reference Use pipes that meet the local standards O material Annealed Soft copper pipes annealed c...

Page 15: ...lare nuts instead of type 1 are used to increase the strength The size of some of the flare nuts have also been changed The figures in the radial thickness column are based on the Japanese standards and provided only as a reference Use pipes that meet the local standards Flare processing dimensions mm in Pipe size mm in A dimension mm in R410A R22 ø6 35 1 4 9 1 0 358 9 0 0 354 ø9 52 3 8 13 2 0 520...

Page 16: ...es and T joints in plastic bags The new refrigerator oil is 10 times as hygroscopic as the conventional refrigerating machine oil such as Suniso and if not handled with care could easily introduce moisture into the system Keep moisture out of the pipes for it will cause the oil to deteriorate and cause a compressor failure 5 Pipe Processing Use a small amount of ester oil ether oil or alkylbenzene...

Page 17: ...ipes or between a copper pipe and copper coupling If installed refrigerant pipes are not immediately connected to the equipment then braze and seal both ends 2 Reasons The new refrigerating machine oil is 10 times as hygroscopic as the conventional oil and is more likely to cause unit failure if water infiltrates into the system Flux generally contains chloride Residual flux in the refrigerant cir...

Page 18: ...o find the location of a leak use R410A Refrigerant R410A must be charged in its liquid state vs gaseous state 2 Reasons Oxygen if used for an air tightness test poses a risk of explosion Only use nitrogen to check air tightness Refrigerant R410A must be charged in its liquid state If gaseous refrigerant in the cylinder is drawn out first the compo sition of the remaining refrigerant in the cylind...

Page 19: ... vacuum drying re moves moisture in the pipes Verify that the vacuum degree has not risen by more than 1Torr 130Pa 1hour after evacuation A rise by less than 1Torr 130Pa is acceptable If the vacuum is lost by more than 1Torr 130Pa conduct evacuation following the instructions in section 6 Special vac uum drying 5 Procedures for stopping vacuum pump To prevent the reverse flow of vacuum pump oil op...

Page 20: ...ge and become unsuitable for use 2 Notes When using a cylinder with a siphon refrigerant is charged in the liquid state without the need for turning it upside down Check the type of the cylinder on the label before use 10 Remedies to be taken in case of a Refrigerant Leak If the refrigerant leaks out it may be replenished The entire refrigerant does not need to be replaced Charge refrigerant in th...

Page 21: ...uitable for use If the refrigerant leaks out it may be replenished The entire refrigerant does not need to be replaced 3 Pressure characteristics The pressure in the system using R410A is 1 6 times as great as that in the system using R22 New Refrigerant HFC type Conventional Refrigerant HFC type R410A R22 R32 R125 R22 Composition wt 50 50 100 Type of Refrigerant Pseudo azeotropic Refrigerant Sing...

Page 22: ...ed as moisture air processing oil dust dirt wrong types of refrigerant and refrigerating machine oil Cause Symptoms Effects on the refrigerant cycle Water infiltration Frozen expansion valve and capillary tubes Clogged expansion valve and capillary tubes Poor cooling performance Compressor overheat Motor insulation failure Burnt motor Coppering of the orbiting scroll Lock Burn in on the orbiting s...

Page 23: ... 14 ...

Page 24: ...Sample System Connection 23 4 An Example of a System to which an MA Remote Controller is connected 24 5 An Example of a System to which an M NET Remote Controller is connected 46 6 An Example of a System to which both MA Remote Controller and M NET Remote Controller are connected 50 7 Restrictions on Pipe Length 53 ...

Page 25: ... 16 ...

Page 26: ...s Refer to section 4 An Example of a System to which an MA Remote Controller is connected 6 An Example of a Sys tem to which both MA Remote Controller and M NET Remote Controller are connected before performing wiring work Types and maximum allowable length of cables Control lines are categorized into 2 types transmission line and remote controller line Use the appropriate type of cables and obser...

Page 27: ... connected 6 An Example of a System to which both MA Remote Controller and M NET Remote Controller are connected before performing wiring work Set the switches while the power is turned off If the switch settings are changed while the unit is being powered those changes will not take effect and the unit will not function properly MA remote controller 1 M NET remote controller 2 Cable type Type VCT...

Page 28: ... in the way that the for mula i ii iii is true 00 LOSSNAY OA processing unit Assign an arbitrary but unique address to each of these units after assigning an address to all indoor units 00 M NET remote controller Main remote controller 101 to 150 Add 100 to the smallest address of all the indoor units in the same group 101 Sub remote controller 151 to 200 2 Add 150 to the smallest address of all t...

Page 29: ... the remote controller install the remote controller where room temperature can be detected Note Factory setting for SW1 1 on the indoor unit of the All Fresh Models is ON 2 When an optional temperature sensor is used set SW1 1 to OFF and set SW3 8 to ON When using an optional temperature sensor install it where room temperature can be detected System configura tion Connection to the system contro...

Page 30: ...n ap prox 5 minutes OFF ON Automatic restoration after power failure Indoor unit will go into operation if it was in operation when the power was turned off or cut off due to power failure In approx 5 minutes ON OFF Indoor unit will remain stopped regardless of its opera tion status before power off power failure OFF OFF Type Usage Function Terminal to be used Input Prohibiting cooling heating ope...

Page 31: ...en when using the STEP DEMAND Example When switching from 100 to 50 CN51 Remote controller board Controller board on outdoor unit Relay circuit CN51 X Y X Y 5 4 3 1 2 3 Maximum allowable wiring length 10 m L1 Error indicator lamp freeze prevention output L2 Compressor operation display lamp X Y Relay For 12V DC coil rating 0 9 W or below L1 L2 Field installed CN3D Remote controller board Controlle...

Page 32: ...P32 4 System with one outdoor unit With connection to transmission line for centralized control Manual address setup O O P34 P36 5 System with one outdoor unit With connection to transmission line for centralized control Manual address setup O P38 P40 Connection of multiple BC control lers 6 System with one outdoor unit With connection to indoor outdoor transmission line Manual address setup O O P...

Page 33: ...em with one outdoor unit to which 2 or more LOSS NAY units are connected 1 Indoor outdoor transmission line Maximum distance 1 25mm2 AWG16 or larger L1 L2 L3 L4 200m 656ft L1 L2 L12 L13 200m 656ft L1 is applicable only in the R2 system 2 Transmission line for centralized control No connection is required 3 MA remote controller wiring Maximum overall line length 0 3 to 1 25mm2 AWG22 to 16 m1 200m 6...

Page 34: ...its To perform a group operation of indoor units IC daisy chain terminals 1 and 2 on the terminal block TB15 on all indoor units IC in the same group and then connect terminals 1 and 2 on the terminal block TB15 on the indoor unit on one end to the terminal block on the MA remote controller Non polarized 2 core cable To perform a group operation of indoor units that have different functions refer ...

Page 35: ...h more than 26 indoor units including one or more in door units of 72 model or above are connected 1 Indoor outdoor transmission line Same as 4 1 2 Transmission line for centralized control No connection is required 3 MA remote controller wiring Same as 4 1 L2 OC TB3 TB7 M1M2 M1M2 S 51 OC TB3 TB7 M1M2 M1M2 S 51 L1 L2 In the case of R2 TB02 M1M2 S 53 1 BC 1 BS TB02 M1M2 S 52 In the case of Y IC TB5...

Page 36: ...or units Same as 4 1 4 LOSSNAY connection Connect terminals M1 and M2 on the terminal block TB5 on the indoor unit IC to the appropriate terminals on the terminal block TB5 on LOSSNAY LC Non polarized 2 core cable Interlock setting between the indoor units and LOSSNAY units must be entered on the remote controller Refer to Entering the Interlock Settings into the MA Remote Controller or the instal...

Page 37: ...e group 1 Main unit address 1 main unit address 2 main unit address 3 etc 2 LOSSNAY LC 01 to 50 Assign an arbitrary but unique ad dress to each of these units after assigning an address to all indoor units None of these addresses may overlap any of the in door unit addresses 00 3 MA remote controller Main remote controller MA No settings required Main Sub remote controller MA Sub remote controller...

Page 38: ... 29 II Restrictions ...

Page 39: ...ssion line Maximum distance 1 25mm2 AWG16 or larger L1 L2 L3 L4 200m 656ft L21 L22 L23 L24 200m 656ft L1 and L21 are applicable only in the R2 system 2 Transmission line for centralized control Maximum line distance via outdoor unit 1 25mm2 AWG16 or larger L1 L2 L3 L4 L31 L21 L22 L23 L24 500m 1640ft L1 and L21 are applicable only in the R2 system 3 MA remote controller wiring Same as 4 1 IC TB5 M1...

Page 40: ... block for centralized control transmission line TB7 Disconnect the male connector on the controller board from the female power supply switch connector CN41 and connect it to the female power supply switch connector CN40 Only use shielded cables Shielded cable connection To ground the shielded cable daisy chain the S terminals on the terminal block TB7 on each of the outdoor units Connect the S s...

Page 41: ...itrary but unique ad dress to each of these units after as signing an address to all indoor units None of these addresses may overlap any of the in door unit addresses 00 3 MA remote controller Main remote controller MA No settings required Main Sub remote controller MA Sub remote controller Settings to be made according to the remote controller function selection 4 Outdoor unit OC 51 to 100 The s...

Page 42: ... 33 II Restrictions ...

Page 43: ...Maximum line distance via outdoor unit 1 25mm2 AWG16 or larger L32 L31 L1 L2 L3 L4 500m 1640ft L32 L21 L22 L23 L24 500m 1640ft L1 L2 L3 L4 L31 L21 L22 L23 L24 500m 1640ft L1 and L21 are applicable only in the R2 system 3 MA remote controller wiring Same as 4 1 IC TB5 M1M2S TB15 1 2 01 IC TB5 M1M2S TB15 1 2 05 A1 B2 MA A1 B2 MA LC TB5 M1M2S 07 IC TB5 M1M2S 1 2 TB15 IC TB5 M1M2S TB15 1 2 04 03 LC TB...

Page 44: ...d cables Shielded cable connection Same as 4 3 3 MA remote controller wiring Same as 4 1 When 2 remote controllers are connected to the system Same as 4 1 Group operation of indoor units Same as 4 1 4 LOSSNAY connection Connect terminals M1 and M2 on the terminal block TB5 on the indoor unit IC to the appropriate terminals on the terminal block for indoor outdoor transmission line TB5 on LOSSNAY L...

Page 45: ...g an address to all indoor units None of these address es may overlap any of the indoor unit address es 00 3 MA remote controller Main remote controller MA No settings required Enter the same indoor unit group settings on the system controller as the ones that were en tered on the MA remote controller Main Sub remote controller MA Sub remote controller Settings to be made according to the remote c...

Page 46: ... 37 II Restrictions ...

Page 47: ...utdoor unit 1 25mm2 AWG16 or larger L32 L31 L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 500m 1640ft L32 L21 L22 L23 L24 L25 L26 L27 500m 1640ft L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 L31 L21 L22 L23 L24 L25 L26 L27 500m 1640ft 3 MA remote controller wiring Same as 4 1 1 When only the LM adapter is connected leave SW2 1 to OFF as it is 2 LM adapters require the power supply capacity of single phase AC 208 230V CN41 CN4...

Page 48: ...nals M1 and M2 on the terminal block for indoor outdoor transmis sion line TB5 on each indoor unit IC Non polarized 2 core cable Only use shielded cables Shielded cable connection Same as 4 1 2 Transmission line for centralized control Same as 4 4 Shielded cable connection Same as 4 3 3 MA remote controller wiring Same as 4 1 When 2 remote controllers are connected to the system Same as 4 1 Group ...

Page 49: ...oor units None of these addresses may overlap any of the in door unit addresses 00 3 MA remote control ler Main remote controller MA No settings required Enter the same indoor unit group settings on the system controller as the ones that were entered on the MA remote con troller Main Sub remote controller MA Sub remote controller Settings to be made according to the remote controller function se l...

Page 50: ... 41 II Restrictions ...

Page 51: ...which the system controller cannot be connected to the indoor outdoor transmission line 1 Indoor outdoor transmission line Maximum distance 1 25mm2 AWG16 or larger L1 L2 L3 L4 200m 656ft L21 L22 L23 L24 200m 656ft L25 200m 656ft L1 and L21 are applicable only in the R2 system 2 Transmission line for centralized control Maximum line distance via outdoor unit 1 25mm2 AWG16 or larger L25 L31 L1 L2 L3...

Page 52: ...al block TB5 on the indoor unit and the S terminal on the system controller 2 Transmission line for centralized control Same as 4 4 Shielded cable connection Same as 4 3 3 MA remote controller wiring Same as 4 1 When 2 remote controllers are connected to the system Same as 4 1 Group operation of indoor units Same as 4 1 4 LOSSNAY connection Connect terminals M1 and M2 on the terminal block TB5 on ...

Page 53: ...g an address to all indoor units None of these address es may overlap any of the indoor unit address es 00 3 MA remote controller Main remote controller MA No settings required Enter the same indoor unit group settings on the system controller as the ones that were en tered on the MA remote controller Main Sub remote controller MA Sub remote controller Settings to be made according to the remote c...

Page 54: ... 45 II Restrictions ...

Page 55: ...nits 15 with one BC 14 with one BC and BS each including one or more indoor units of 72 model or above are connected 1 Indoor outdoor transmission line Same as 4 3 2 Transmission line for centralized control Same as 4 4 3 M NET remote controller wiring Maximum overall line length 0 3 to 1 25mm2 AWG22 to 16 m1 10m 32ft m2 m3 10m 32ft If the standard supplied cable must be extend ed use a cable with...

Page 56: ...e connected to the system connect terminals M1 and M2 of the terminal block on the IC TB5 to the terminal block on the two RC remote controllers Group operation of indoor units To perform a group operation of indoor units connect terminals M1 and M2 on the terminal block TB5 on the main indoor unit in the group to the terminal block on the M NET remote controller Non polarized 2 core cable M NET r...

Page 57: ...ss to each of these units af ter assigning an address to all in door units None of these addresses may overlap any of the indoor unit addresses 00 3 M NET remote controller Main remote controller RC 101 to 150 Add 100 to the main unit address in the group It is not necessary to set the 100s digit To set the address to 200 set it to 00 101 Sub remote controller RC 151 to 200 Add 150 to the main uni...

Page 58: ... 49 II Restrictions ...

Page 59: ...m to which more than 16 indoor units 15 with one BC 14 with one BC and BS each including one or more indoor units of 72 model or above are connected 1 Indoor outdoor transmission line Same as 4 3 2 Transmission line for centralized control Same as 4 4 3 MA remote controller wiring Same as 4 1 4 M NET remote controller wiring Same as 4 1 In the case of Y IC TB5 M1M2S TB15 1 2 01 IC TB5 M1M2S TB15 1...

Page 60: ... address to the main unit in the group In an R2 system with a sub BC controller make the settings for the indoor units in the following order i Indoor unit to be connected to the main BC controller ii Indoor unit to be connected to sub BC controller 1 iii Indoor unit to be connected to sub BC controller 2 Make the settings for the indoor units in the way that the formula i ii iii is true Assign an...

Page 61: ... ad dress 2 main unit address 3 etc M NET re mote con troller Main re mote con troller RC 101 to 150 Add 100 to the main unit address in the group It is not necessary to set the 100s digit To set the address to 200 set it to 00 101 Sub re mote con troller RC 151 to 200 Add 150 to the main unit address in the group 3 LOSSNAY LC 01 to 50 Assign an arbitrary but unique ad dress to each of these units...

Page 62: ...rigerant piping A large amount of chlorine that may be contained in the re sidual refrigerant and refrigerating machine oil in the exist ing piping may cause the refrigerating machine oil in the new unit to deteriorate Use refrigerant pipes made of phosphorus deoxidized copper Keep the inner and outer surfaces of the pipes clean and free of such contaminants as sulfur oxides dust dirt shaving part...

Page 63: ...anch to the far thest indoor unit B C D e 40 131 or less Height difference Between indoor and outdoor units Outdoor unit above in door unit H 50 164 or less Outdoor unit below in door unit H 40 131 or less Between indoor units h 15 49 or less Outdoor unit L H H A A B C D a b c d h e First branch Indoor Indoor Indoor Indoor Indoor 5 1 2 3 4 Note Total sum of downstream unit model numbers in the tab...

Page 64: ... or less Total pipe length from the first branch to the far thest indoor unit f 40 131 or less Height difference Between indoor and outdoor units Outdoor unit above in door unit H 50 164 or less Outdoor unit below in door unit H 40 131 or less Between indoor units h 15 49 or less L H H A a b c d h e f 5 1 2 3 4 6 cap Outdoor unit Note Pipes from the header may not be re branched First branch Indoo...

Page 65: ...b 40 131 or less Height difference Between indoor and outdoor units Outdoor unit above in door unit H 50 164 or less Outdoor unit below in door unit H 40 131 or less Between indoor units h 15 49 or less L H H A A B C a b c d h e First branch Branch joint 5 1 2 3 4 Note Total sum of downstream unit model numbers in the table is the sum of the model numbers of the units after point A in the figure B...

Page 66: ... 50 164 or less Outdoor unit below indoor unit H 40 131 or less Between indoor unit and BC controller h1 15 49 or less 10 32 or less 3 3 When the capacity of the connected indoor units is P72 or above use the figures in the parentheses as a reference Between indoor units h2 15 49 or less 10 32 or less 3 Outdoor unit B A a b c d e H 50 m 164ft or less Outdoor unit below indoor unit H 40 m 131ft or ...

Page 67: ...72 or above use the figures in the parentheses as a reference Between indoor units h2 15 49 or less 10 32 or less 3 Between main BC controller and sub BC controller h3 15 49 or less Between indoor unit main BC controller and indoor unit sub BC controller h4 15 49 or less 10 32 or less 3 4 4 When connecting 2 sub BC controllers to a system observe the allowable length in the table above Outdoor uni...

Page 68: ...8 Connection to outdoor unit and BC controller High pressure pipe ø15 88 5 8 Brazed connection ø19 05 3 4 Brazed connection ø22 2 7 8 Brazed connection Low pressure pipe ø19 05 3 4 Brazed connection ø22 2 7 8 Brazed connection ø28 58 1 1 8 Brazed connection Operation Outdoor unit PURY P168TGMU A PURY P192TGMU A PURY P204TGMU A PURY P216TGMU A PURY P234TGMU A Refrigerant pipe size High pressure pip...

Page 69: ...t is specified in Section 3 Piping Materials under Read Before Servicing Unit mm in Operation Indoor unit 06 08 12 15 18 24 27 30 36 48 72 96 Refrigerant pipe size Liquid pipe ø6 35 1 4 ø9 52 3 8 Gas pipe ø12 7 1 2 ø15 88 5 8 ø19 05 3 4 ø22 2 7 8 Connection to outdoor unit Flare connec tion for all mod els Liquid pipe ø6 35 1 4 ø9 52 3 8 Gas pipe ø12 7 1 2 ø15 88 5 8 ø19 05 3 4 ø22 2 7 8 Unit mm i...

Page 70: ...58 1 1 8 Brazed connection Indoor unit side ø9 52 3 8 Flare connection ø15 88 5 8 Flare connection Indoor Indoor Indoor Indoor Indoor Indoor BC controller Maximum of 3 units per port Total capacity of P160 or below All units connected to the same port must be in the same operating mode Branch joint Model name CMY Y102S G Optional accessory 2 Junction pipe kit Model name CMY R160 J Optional accesso...

Page 71: ...es in sections A and B in the figure above Select the proper size pipes based on the total capacity of the downstream indoor units using the table below as a refer ence Unit mm in Total capacity of indoor units Liquid pipe Gas pipe P54 or below ø9 52 3 8 ø15 88 5 8 P55 P72 ø19 05 3 4 P73 P96 ø22 2 7 8 1 1 Use the pipe that is supplied Liquid pipe side 6 35 1 4 ID Gas pipe side 12 7 1 2 ID Liquid p...

Page 72: ...units Liquid pipe Gas pipe P54 or below ø9 52 3 8 ø15 88 5 8 P55 P72 ø19 05 3 4 P73 P96 ø22 2 7 8 1 1 Use the pipe that is supplied Unit mm in Operation Pipe sections High pressure side Low pressure side Outdoor unit side PURY P72TGMU A ø15 88 5 8 Brazed connection ø19 05 3 4 Brazed connection PURY P96TGMU A ø19 05 3 4 Brazed connection ø22 2 7 8 Brazed connection PURY P108TGMU A PURY P126TGMU A ø...

Page 73: ...rence Unit mm in Total capacity of indoor units Liquid pipe Gas pipe P54 or below ø9 52 3 8 ø15 88 5 8 P55 P72 ø19 05 3 4 P73 P96 ø22 2 7 8 1 1 Use the pipe that is supplied Unit mm in Operation Pipe sections High pressure side gas Low pressure side gas Liquid pipe side Total capacity of the indoor units that are connected to the BC controller in question On the BC controller side P72 model or bel...

Page 74: ...omponents 1 Outdoor Unit Components and Refrigerant Circuit 67 2 Control Box of the Outdoor Unit 79 3 Outdoor Unit Circuit Board 81 4 BC Controller Under the panel 86 5 Control Box of the BC Controller 88 6 BC Controller Circuit Board 89 ...

Page 75: ... 66 ...

Page 76: ...BC Controller Components III Outdoor Unit BC Controller Components 1 Outdoor Unit Components and Refrigerant Circuit 1 PUHY P72 P96 and P108 models 1 Appearance Heat exchanger Rear Heat exchanger Front Control box Fan guard ...

Page 77: ...valve 1 1 The diameter of this charge plug is 5 16 Use the adapter that is supplied with the product if using tools designed primarily for use with 1 4 diameter materials Liquid side ball valve 1 Low pressure sensor Inverter compressor Accumulator Discharge muffler Oil separator High pressure check joint 1 Linear expansion valve LEV1 4 way valve Accumulator Subcool coil Linear expansion valve LEV1...

Page 78: ... 69 III Outdoor Unit BC Controller Components 2 PUHY P126 and P144 models 1 Appearance Heat exchanger Rear Heat exchanger Front Control box Fan guard ...

Page 79: ...heck joint 1 Gas side ball valve 1 Liquid side ball valve 1 Low pressure sensor Inverter compressor Accumulator Discharge muffler Oil separator High pressure check joint 1 Fusible plug 1 The diameter of this charge plug is 5 16 Use the adapter that is supplied with the product if using tools designed primarily for use with 1 4 diameter materials Accumulator Subcool coil Oil separator Linear expans...

Page 80: ... 71 III Outdoor Unit BC Controller Components 3 PUHY P168 P192 P204 P216 and P234 models 1 Appearance Heat exchanger Rear Heat exchanger Front Control box Fan guard ...

Page 81: ... valve 1 Liquid side ball valve 1 Low pressure sensor Linear expansion valve LEV1 Inverter compressor No 1 Non inverter compressorr No 2 Oil balance pipe Accumulator Oil separator No 1 Oil separator No 2 High pressure check joint 1 Fusible plug 1 The diameter of this charge plug is 5 16 Use the adapter that is supplied with the product if using tools designed primarily for use with 1 4 diameter ma...

Page 82: ... 73 III Outdoor Unit BC Controller Components 4 PURY P72 P96 and P108 models 1 Appearance Heat exchanger Rear Heat exchanger Front Control box Fan guard ...

Page 83: ...lve on high pressure pipe side 1 Ball valve on low pressure pipe side 1 Low pressure check joint 1 Inverter compressor Accumulator Oil separator Fusible plug High pressure check joint 1 1 The diameter of this charge plug is 5 16 Use the adapter that is supplied with the product if using tools designed primarily for use with 1 4 diameter materials Accumulator Fusible plug Solenoid valve block Low p...

Page 84: ... 75 III Outdoor Unit BC Controller Components 5 PURY P126 and P144 models 1 Appearance Heat exchanger Rear Heat exchanger Front Control box Fan guard ...

Page 85: ...or Low pressure check joint 1 Inverter compressor Accumulator Oil separator Fusible plug Ball valve on high pressure pipe side 1 Ball valve on low pressure pipe side 1 High pressure check joint 1 1 The diameter of this charge plug is 5 16 Use the adapter that is supplied with the product if using tools designed primarily for use with 1 4 diameter materials Accumulator Fusible plug Solenoid valve b...

Page 86: ... 77 III Outdoor Unit BC Controller Components 6 PURY P168 P192 P204 P216 and P234 models 1 Appearance Heat exchanger Rear Heat exchanger Front Control box Fan guard ...

Page 87: ...sor No 1 Non inverter compressor No 2 Accumulator Oil separator No 1 Oil separator No 2 Fusible plug Low pressure check joint 1 High pressure check joint 1 Ball valve on high pressure pipe side 1 Ball valve on low pressure pipe side 1 1 The diameter of this charge plug is 5 16 Use the adapter that is supplied with the product if using tools designed primarily for use with 1 4 diameter materials Ac...

Page 88: ... U phase ACCT W phase Bleeder resistance R2 Terminal block for indoor outdoor transmission line TB3 Terminal block for centralized control system transmission line TB7 Diode stack DS In rush current protection R1 Electromagnetic relay 52C Smoothing capacitor C1 DCCT DCL Rear Noise filter NF Control circuit board Transformer T Choke coil L1 L2 Fan control board Terminal block for power supply TB1 ...

Page 89: ...block for centralized control system transmission line TB7 Diode stack DS Fan control board Fuse F11 F12 AC250V 60A DCCT Relay board Relay board DCL Control circuit board Gateamp board Electromagnetic contactor 52C2 Electromagnetic contactor 52F Overcurrent relay 51C2 Terminal block for power supply TB1 In rush current protection R1 Power circuit board Bleeder resistance R2 Electromagnetic relay 5...

Page 90: ...phase 1 L3 phase 208 230V CNOUT1 Relay drive output to relay board Power output to relay board AC208 230V 51C2 detection signal input CNRT1 1 5 1 3 Compressor operation Outdoor unit operation error signal output Output from solenoid valve for unit control etc CN51 3 4 3 5 1 3 CN52C 52C1 driving output AC 208 230V CN38 High pressure switch 63H CN41 without power supply to centralized system CN40 wi...

Page 91: ...0V CNDC2 DC bus voltage input 1 3 DC 280V LED3 charge lamp CNL1 Choke coil for transmission line CNDR2 IPM control signal output LED2 Inverter error LED1 Inverter operation CNTH Inverter heatsink THHS CNRS2 Serial communication input from and output to main circuit board CNAC2 Power input AC 208 230V 5 L1 phase 3 L3 phase 1 Ground CNCT DCCT input CN52C 52C2 driving output 1 3 AC 208 230V CNL2 Chok...

Page 92: ...er board 1 PUHY PURY Fuse AC 250V 15A CNTH Inverter heatsink THHS DIP IPM Rear CNTR CNRS2 Serial communication input from and output to main circuit board LED1 Inverter operation LED2 Inverter error SW2 Address setting CNINV Fan motor output CNVDC DC bus voltage input 1 3 ...

Page 93: ... BOARD 1 PUHY PURY CNOUT2 Relay drive output CNRT2 1 5 52C2 52F CH12 Power input AC 208 230V 1 3 51C2 Detection signal output CNCH CH12 output 1 3 AC 208 230V CN51C2 51C2 Contact input CN52F 52F driving output 1 3 AC208 230V CN52C2 52C2 driving output 1 5 AC 208 230V ...

Page 94: ... 85 III Outdoor Unit BC Controller Components 5 RELAY BOARD RELAY02 BOARD 1 CMB CNIN Relay drive output CN01 CH12 Output 3 5 AC208 230V CNAC1 CH12 Power input 1 3 AC 208 230V CNX10 ...

Page 95: ...1 Front 2 Rear view GA type 3 Rear view G type Liquid pipe Indoor unit side Gas pipe Indoor unit side TH12 TH15 TH16 TH11 SVM2 SVM1 LEV1 LEV3 LEV2 PS1 PS3 Tube in tube heat exchanger Gas Liquid separator Tube in tube heat exchanger Gas Liquid separator TH12 TH15 TH16 TH11 SVM1 LEV1 LEV3 PS1 PS3 ...

Page 96: ... 87 III Outdoor Unit BC Controller Components 2 CMB P NU GB 1 Front 2 Rear view Liquid pipe Indoor unit side Gas pipe Indoor unit side TH25 TH22 LEV3a ...

Page 97: ...III Outdoor Unit BC Controller Components 5 Control Box of the BC Controller 1 CMB P1016NU GA Relay board Transformer Terminal block for transmission line BC controller board Terminal block for power supply ...

Page 98: ... 89 III Outdoor Unit BC Controller Components 6 BC Controller Circuit Board 1 BC controller circuit board BC board SW1 SW2 SW4 SW5 ...

Page 99: ... 90 III Outdoor Unit BC Controller Components 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...

Page 100: ...Specifications of MA and ME Remote Controllers 93 2 Group Settings and Interlock Settings via the ME Remote Controller 94 3 Interlock Settings via the MA Remote Controller 98 4 Using the built in Temperature Sensor on the Remote Controller 101 ...

Page 101: ... 92 ...

Page 102: ...ge MA remote controller wiring between indoor units requires rewiring Either the indoor unit address and remote con troller address must both be changed or the registration information must be changed via MELANS 1 MA remote controller refers to MA remote controller MA simple remote controller and wireless remote controller 2 Either the MA remote controller or the M NET remote controller can be con...

Page 103: ...ge will appear on the display Check the address and try again 5 Successful completion of registration Unit type Indoor unit in this case blinks to indicate a registration error Indicates that selected address does not have a corresponding unit 4 To register the addresses for multiple indoor units repeat steps and above 3 4 To search for an address go to section 2 Address Search To search for an ad...

Page 104: ...LOSSNAY and indoor unit that is interlocked with it will be displayed alternately LOSSNAY can be searched in the same manner by bringing up the LOSSNAY address in the Interlocked unit address display window B Interlock setting search After performing step proceed as follows Bring up the address of the indoor unit to be searched on the display Select the address of the indoor unit to be searched by...

Page 105: ... or changed as necessary 3 Narrowed preset temperature range mode The default temperature ranges are 19 C to 30 C 67 F to 87 F in the cooling dry mode and 17 C to 28 C 63 F to 83 F in the heating mode By changing these ranges raising the lower limit for the cooling dry mode and lowering the upper limit for the heating mode energy can be saved On the PAR F27MEA US model automatic operation mode can...

Page 106: ...lower limit temperature is changeable HEAT and LIMIT TEMP will light up and the temperature range for the heating mode will appear on the screen The upper limit temperature can be changed with button TIMER SET or Selection range for the upper limit temperature 63 F 83 F Medium temperature range indoor unit 63 F 83 F The lower limit temperature is fixed at 63 F Only the upper limit temperature is c...

Page 107: ...er the address of the selected indoor unit and the interlocked LOSSNAY unit Registration completed The registered indoor unit address and IC and the interlocked LOSSNAY address and LC will appear alternately Registration error If the registration fails the indoor unit address and the LOSSNAY address will be displayed alternately Registration cannot be completed The selected unit address does not h...

Page 108: ...en a LOSSNAY unit and the interlocked indoor unit from the remote controller that is connected to the indoor unit Find the address of the LOSSNAY to be deleted See section 2 Search Procedures and bring up the result of the search for both the indoor unit and LOSSNAY on the display Press the ON OFF button twice to delete the address of the LOSSNAY unit that is interlocked with the selected indoor u...

Page 109: ...NCTION 2 Use of automatic mode SELECT AUTO MODE 3 Temperature range setting LIMIT TEMP FUNCTION 1 Remote controller main sub setting CONTROLLER MAIN SUB 2 Clock enable disable function CLOCK 3 Timer function setting WEEKLY TIMER 4 Technical assistance contact number setting CALL 1 Temperature unit selection TEMP MODE C F 2 Suction air temperature display setting ROOM TEMP DISP SELECT 3 Automatic c...

Page 110: ...mperature can be changed within the set range LIMIT TEMP COOL MODE The temperature range for the cooling dry mode can be changed LIMIT TEMP HEAT MODE The temperature range for the heating mode can be changed LIMIT TEMP AUTO MODE The temperature range for the automatic mode can be changed OFF Initial setting The temperature range is not set 1 2 3 4 When any setting other than OFF is selected the te...

Page 111: ... 102 ...

Page 112: ... 103 V Electrical Wiring Diagram 1 Electrical Wiring Diagram of the Outdoor Unit 105 2 Electrical Wiring Diagram of the BC Controller 109 ...

Page 113: ... 104 ...

Page 114: ...rouble 1 2 3 4 5 CN51 12V or STEP DEMAND L3 L2 2 1 3 detection circuit LD2 DSA ZNR1 4 X01 F01 250VAC 3 15A T F01 250VAC 15A T CH11 21S 4b 21S 4a 63H1 SV 5b SV1 LEV1 52C MF1 MF L2 L3 L1 G FN1 R1 52C FN2 FN3 FN4 FN5 NF Noise Filter C1 G 1 2 1 2 1 2 CNL2 CNL1 L2 L1 R2 red CN30V green CNTH THHS5 1 2 black red red white black red black LED1 operation LED2 error 1 4 ON OFF SW 2 SW1 SW2 SW3 SW4 LD1 ON OF...

Page 115: ...ield Indoor outdoor transmission line Central control transmission line L3 L2 L1 TB1 Terminal Block Ground Power source 3 208 230V 60Hz Motor Compressor DS Diode stack Motor Compressor Gate amp board L1 L3 G LED1 operation LED2 error LED3 charge Power circuit board LD2 DSA ZNR1 4 X01 F01 250VAC 3 15A T F01 250VAC 15A T CH12 CH11 21S 4b 21S 4a SV3 63H1 63H2 SV 5b SV1 LEV1 52 C1 MF3 MF1 MF2 52F 52 C...

Page 116: ...h operation SW4 7 CN3D 1 2P and CN3D 1 3P AC Current Sensor ACCT Relay Inverter main circuit High pressure switch Discharge pipe temp detect Terminal block 52C 63H1 TH11 TB1 3 7 63HS L1 L2 63LS Choke coil Transmission DC Current Sensor Crank case heater Compressor 4 way valve Solenoid valve Discharge suction bypass OA temp detect Pipe temp detect Hex outlet liquid outlet temp detect at Sub cool co...

Page 117: ... white red U W ACCT U V ACCT W CNRS1 CNFG blue CNVCC1 R2 L1 L2 THHS1 CN30V red CNTH green CNCT CNL1 DCL CNL2 F01 AC250V 2A T CNCT2 blue CNDC2 yellow CNDR1 CN15V2 CNDR2 CNDC1 yellow CN15V1 CNDC2 black white DCCT red black red AC250V 3 15A T FN4 FN3 FN2 FN5 FN1 SW4 7 ON STEP DEMAND red black white green black red white Radiator panel temp detect THHS1 5 red F01 OFF ON SW4 7 OFF Compressor ON OFF and...

Page 118: ...5 4 3 2 1 1 2 CNP3 3 2 1 CNP1 3 CN02 2 1 CONT B 1 2 3 4 5 6 CN05 3 5 1 CN12 1 3 CN26 TB02 TR SVM1 Solenoid valve Fuse AC250V 6 3A F F01 Terminal T1 4 Terminal block for Transmission TB02 Terminal block for power source TB01 Solenoid valve SV1 4A B C Expansion valve Thermister sensor Transformer Name Symbol TR TH11 12 15 16 LEV1 3 PS1 3 Pressure sensor CONT B Note 1 TB02 is transmission terminal bl...

Page 119: ...3 2 1 SV6C SV6A SV6B 1 2 3 4 1 2 3 4 1 2 3 4 1 5 3 1 7 5 3 1 7 5 3 1 X8 X7 X33 X10 X9 X34 X12 X11 X35 CN30 Black CN31 Yellow Solenoid valve SVM1 CONT B Pressure sensor TR TH11 12 15 16 LEV1 3 PS1 3 Symbol Name Transformer Thermister sensor Expansion valve SV1 6A B C Solenoid valve TB01 Terminal block for power source TB02 Terminal block for Transmission T1 6 Terminal F01 Fuse AC250V 6 3A F Note 1 ...

Page 120: ... 4 3 2 1 4 3 2 1 X30 X1 X2 1 3 5 4 3 2 1 SV1B SV1A SV1C 1 2 3 4 3 2 4 1 3 2 4 1 X35 X11 X12 X34 X9 X10 X33 X7 X8 X32 X5 X6 X31 X3 X4 7 1 3 5 7 1 3 5 7 1 3 5 7 1 3 5 7 1 3 5 7 1 1 1 4 3 2 4 3 2 4 3 2 1 4 3 2 SV2C SV2A SV2B SV3C SV3A SV3B SV4C SV4A SV4B SV5B SV5A SV5C 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 11 12 13 8 9 10 5 6 7 14 15 16 8 9 10 11 12 13 5 6 7 14 15 16 1 2 1 2 3 3 4 3 2 1 4 3 2 1 SV6C SV6A S...

Page 121: ...1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 7 5 3 1 3 3 X14 X13 X36 X37 X15 X16 X38 X39 X17 X19 X18 X20 7 5 3 1 7 5 3 1 7 5 3 1 CN40 SVM1 2 3 2 1 3 1 REL B 4 5 6 8 9 7 10 12 11 13 15 14 16 3 4 2 1 SV11B SV11A SV11C 1 3 2 8 9 10 11 12 13 3 2 4 1 5 6 7 14 15 16 4 3 2 1 SV12C SV12A SV12B SV13C SV13A SV13B SV14C SV14A SV14B SV15B SV15A SV15C 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 ...

Page 122: ...6C 1 2 3 4 1 2 3 4 3 3 2 1 2 1 16 15 14 7 6 5 13 12 11 10 9 8 16 15 14 7 6 5 10 9 8 13 12 11 4 4 4 4 3 3 3 3 2 2 2 2 1 1 1 1 SV5C SV5A SV5B SV4B SV4A SV4C SV3B SV3A SV3C SV2B SV2A SV2C 2 3 4 1 2 3 4 2 3 4 2 3 4 1 1 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 X4 X3 X31 X6 X5 X32 X8 X7 X33 X10 X9 X34 X12 X11 X35 1 4 2 3 1 4 2 3 4 3 2 1 SV1C SV1A SV1B 1 2 3 4 5 3 1 X2 X1 X30 X60 X21 CN46 Yellow 3 1 3...

Page 123: ... 1 7 5 3 1 7 5 3 1 1 CN36 Green X21 CN45 Green CN44 Yellow CN43 Red REL B 4 5 6 8 9 7 10 12 11 13 15 14 16 3 4 2 1 SV11B SV11A SV11C 1 3 2 8 9 10 11 12 13 3 2 4 1 5 6 7 14 15 16 4 3 2 1 SV12C SV12A SV12B SV13C SV13A SV13B SV14C SV14A SV14B SV15B SV15A SV15C 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 SV16B SV16A SV16C 1 2 3 4 1 3 4 3 4 2 1 X51 X55 X56 X52 X53 X57 X54 7 ...

Page 124: ... 8 7 6 5 4 3 2 1 1 2 CN02 CONT B 3 5 1 CN12 1 3 CN26 TR Fuse AC250V 6 3A F F01 Terminal T1 4 Terminal block for Transmission TB02 Terminal block for power source TB01 Solenoid valve SV1 4A B C Expansion valve Thermister sensor Transformer Name Symbol TR TH12 15 LEV3 CONT B Note 1 TB02 is transmission terminal block Never connect power line to it 2 The initial set values of switch on CONT B are as ...

Page 125: ...0 5 6 7 14 15 16 8 9 10 11 12 13 5 6 7 14 15 16 1 2 1 2 3 3 4 3 2 1 4 3 2 1 SV6C SV6A SV6B 7 6 5 4 3 2 1 CN39 3 1 CN52 CONT B 6 5 4 3 2 1 LEV3 2 1 1 2 3 4 5 6 7 8 4 3 2 1 1 2 3 2 1 CN03 CN02 CN10 CN11 TH12 TH15 TR CN50 7 6 5 4 3 2 1 1 3 5 1 3 CN38 CN26 3 1 CNTR REL B F01 Fuse AC250V 6 3A F Terminal T1 8 CONT B Terminal block for Transmission TB02 Terminal block for power source TB01 Solenoid valve...

Page 126: ... 117 VI Refrigerant Circuit 1 Refrigerant Circuit Figure 119 2 Principal Parts and Functions 126 ...

Page 127: ... 118 ...

Page 128: ...I Refrigerant Circuit 1 Refrigerant Circuit Figure 1 Outdoor unit 1 PUHY P72 P96 and P108 models TH7 TH8 TH5 HEX B SCC LEV1 ST4 BV1 ST1 TH6 HEX F BV2 ST2 TH1 O S CP1 SV1 ACC Comp 63H 21S4a 63LS ST3 ST6 CJ1 63HS CJ2 ST7 Fusible Plug ...

Page 129: ...120 VI Refrigerant Circuit 2 PUHY P126 and P144 models O S Comp TH8 TH5 ST8 TH7 SCC TH1 63H ST6 CP1 CJ1 ST1 BV1 ST2 BV2 TH6 HEX F HEX B 21S4a CJ2 63LS 63HS 21S4b ST10 ST11 SV5b SV1 LEV1 Acc Fusible Plug ...

Page 130: ...P234 models 63HS TH5 TH6 TH7 TH8 CJ1 O S TH11 HEX2b B HEX1b F CJ2 SV3 SV1 CP1 BV2 BV1 TH12 Comp1 Comp2 HEX2a B HEX1a F SV5b Acc SCC LEV1 63H1 63H2 21S4a 21S4b ST5 ST6 ST2 ST1 63LS O S Oil Tank CV1 CV2 CJ3 CP2 ST7 ST10 ST11 ST12 ST13 ø6 35 ø6 35 Fusible Plug ST8 ...

Page 131: ...3HS CJ1 O S TH11 CJ2 SV1 CP1 BV2 Comp1 Acc 63H1 21S4a ST6 ST5 ST1 63LS ST10 ST11 BV1 CV8a CV10a CV9a CV5a CV4a CV2a CV6a CV7a TH6 TH7 TH5 SV4a SV4b SV4c SV4d Orifice ST14 HEXb1 HEXf1 HEXf2 HEXf3 ST15 ST16 ST17 SV2 Check Valves Block Solenoid Valves Block Fusible plug CV3a ...

Page 132: ...T1 63LS O S CV1 CV2 CJ3 CP2 ST7 ST10 ST11 ST12 ST13 BV1 CV8a CV10a CV9a CV5a CV4a CV2a CV3a CV6a CV7a TH6 TH7 TH5 SV4a SV4b SV4c SV4d SV5a SV5b CV2b CV5b CV4b CV6b Orifice ST14 HEXb1 HEXf1 HEXf2 HEXf3 ST15 ST16 ST17 ST18 ST19 HEXb2 HEXf4 SV2 Fusible plug Check Valves Block 1 Solenoid Valves Block 1 Solenoid Valves Block 2 Check Valves Block 2 Oil Tank CV7b CV3b ...

Page 133: ...013 and P1016NU GA main TH15 TH12 LEV3 LEV1 TH16 PS1 PS3 TH11 SVM1 HIC B Gas Liquid Separator Solenoid valves Block Check valves Block TH15 TH12 LEV3 LEV1 TH16 PS1 PS3 TH11 Solenoid valves Block SVM1 SVM2 Gas pipe high pressure side Gas Liquid Separator LEV2 Liquid pipe Check valves Block Gas pipe low pressure side ...

Page 134: ... 125 VI Refrigerant Circuit 3 CMB P104 and P108NU GB sub TH25 TH22 LEV3a CP Solenoid valves Block Check valves Block ...

Page 135: ...10 C 50 F 0 467ohm 20 C 68 F 0 486ohm 30 C 86 F 0 505ohm High pressure sensor 63HS 1 Detects high pressure 2 Regulates frequency and pro vides high pressure protection Low pressure sensor 63LS 1 Detects low pressure 2 Provides low pressure protec tion Pressure switch 63H1 63H2 63H2 is available only on P168 P234 models 1 Detects high pressure 2 Provides high pressure pro tection 4 15MPa 601psi OFF...

Page 136: ...V1 based on TH5 TH7 and TH8 data THHS Inverter heat sink temperature Heat sink Controls inverter cooling fan based on THHS temperature 0 C 32 F 181kohm 10 C 50 F 105kohm 20 C 68 F 64kohm 25 C 77 F 50kohm 30 C 86 F 40kohm 40 C 104 F 26kohm Solenoid valve SV1 Discharge suction bypass 1 High low pressure bypass at start up and stopping and ca pacity control during low load operation 2 High pressure r...

Page 137: ...able only on P168 P234 models Heats the refrigerant in the com pressor Cord heater AC208 230V CH11 CH12 928ohm 57W 230V Resis tance check 4 way valve 21S4a Changeover between heating and cooling AC208 230V Dead cooling cycle Live heating cycle Continuity check with a tester 21S4b P126 P234 models only 1 Changeover between heating and cooling 2 Controls outdoor unit heat ex changer capacity AC208 2...

Page 138: ... 68 F 0 486ohm 30 C 86 F 0 505ohm High pressure sensor 63HS 1 Detects high pressure 2 Regulates frequency and pro vides high pressure protection Low pressure sensor 63LS 1 Detects low pressure 2 Provides low pressure protec tion Pressure switch 63H1 63H2 63H2 is available only on P168 P234 models 1 Detects high pressure 2 Provides high pressure pro tection 4 15MPa 601psi OFF setting Pressure 0 4 1...

Page 139: ...m 10 C 50 F 9 7kohm 20 C 68 F 6 4kohm 25 C 77 F 5 3kohm 30 C 86 F 4 3kohm 40 C 104 F 3 1kohm Resis tance check TH6 Out door tempera ture 1 Detects outdoor air tempera ture 2 Controls fan operation TH7 Pipe tempera ture Controls defrosting during heat ing operation THHS Inverter heat sink tempera ture Heat sink Controls inverter cooling fan based on THHS temperature 0 C 32 F 181kohm 10 C 50 F 105ko...

Page 140: ...capacity control Controls outdoor unit heat ex changer capacity AC208 230V Closed while being powered open while not being powered SV5a SV5b Heat ex changer capacity control P168 P234 models only Heater CH11 CH12 Crank case heater TH12 is available only on P168 P234 models Heats the refrigerant in the com pressor Cord heater AC208 230V CH11 CH12 928ohm 57W 230V Resis tance check 4 way valve 21S4a ...

Page 141: ...ty be tween yellow brown and blue Ther mistor TH1 Suction air tem perature Indoor unit control Thermo 0 C 32 F 15kohm 10 C 50 F 9 7kohm 20 C 68 F 6 4kohm 25 C 77 F 5 3kohm 30 C 86 F 4 3kohm 40 C 104 F 3 1kohm Resistance check TH2 Pipe tem perature 1 Indoor unit control Freeze prevention Pre heating stand by 2 LEV control during heating operation Subcool detection TH3 Gas pipe tempera ture LEV cont...

Page 142: ...ontrol Subcool Solenoid valve SVM1 Opens during cooling and de frost modes AC208 230V Open while being powered closed while not being pow ered Continuity check with a tester SV A Provides refrigerant to indoor unit in cooling operation SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV LEV1 1 Liquid level control 2 Pressu...

Page 143: ...Subcool Solenoid valve SVM1 Opens during cooling and de frost modes AC208 230V Open while being powered closed while not being pow ered Continuity check with a tester SVM2 Pressure differential control SV A Provides refrigerant to indoor unit in cooling operation SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV LEV1 LEV...

Page 144: ...pera ture LEV control Superheat Solenoid valve SV A Provides refrigerant to indoor unit in cooling operation AC208 230V Open while being powered closed while not being pow ered Continuity check with a tester SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV LEV3a Pressure differential control DC12V Opening of a valve dri...

Page 145: ... 136 ...

Page 146: ... 137 VII Control 1 Functions and Factory Settings of the Dipswitches 139 2 Controlling the Outdoor Unit 148 3 Controlling BC Controller 164 4 Operation Flow Chart 165 ...

Page 147: ... 138 ...

Page 148: ...frost Normal control Forced defrost starts 10 minutes after compressor start up Anytime after power on When switched from OFF to ON 8 Defrost timer setting 50 minutes 90 minutes Anytime after power on When switched from OFF to ON 9 10 SW3 1 Test run mode en abled disabled SW3 2 disabled SW3 2 enabled Anytime after power on 2 Test run mode ON OFF Stops all ICs Sends a test run signal to all IC Afte...

Page 149: ...3 LED Display C kg cm2 G F psi When switching on the power 4 5 6 7 8 9 10 DIP SW 3 9 DIP SW 5 1 OFF ON OFF Standard specification Standard specification ON High static pressure 60 Pa 0 240in WG specification High static pressure 30 Pa 0 120in WG specification Switch Function Function according to switch setting Switch setting timing OFF ON OFF ON Note All are set to OFF at factory shipment Unless ...

Page 150: ...inutes after compressor start up Anytime after power on When switched from OFF to ON 8 Defrost timer setting 50 minutes 90 minutes Anytime after power on When switched from OFF to ON 9 10 SW3 1 Test run mode en abled disabled SW3 2 disabled SW3 2 enabled Anytime after power on 2 Test run mode ON OFF Stops all ICs Sends a test run sig nal to all IC After power on and when SW3 1 is on 3 Defrost star...

Page 151: ... 3 LED Display C kg cm2G F psi When switching on the power 4 5 6 7 8 9 10 Switch Function Function according to switch setting Switch setting timing OFF ON OFF ON Note All are set to OFF at factory shipment Unless otherwise specified set the switch to OFF where indicated by which may be set to a certain setting for a reason DIP SW 3 9 DIP SW 5 1 OFF ON OFF Standard specification Standard specifica...

Page 152: ...dicated by which may be set to a certain setting for a reason Switch Function Function according to switch setting Switch setting timing OFF ON OFF ON SW1 1 Enabling disabling the following error detection functions ACCT or DCCT sensor circuit error 530X Detail No 115 116 ACCT or DCCT sensor failure 530X Detail No 117 118 IPM open Disconnected CNCT2 530X Detail No 119 Detection of erroneous wiring...

Page 153: ...ensor on the remote controller on All Fresh PEFY NMHU E F model units Applicable to All Fresh model units PEFY NMHU E F only Always set to OFF on PKFY NAMU model units PLFY NLMU model only Set to OFF on floor standing PFFY type units Note 1 Settings in the shaded areas are factory settings Note 2 On a system with a G 50 connection set Dip SW 1 9 and 1 10 to ON to control input output using the PLC...

Page 154: ...N OFF OFF OFF PCFY P15 36NGMU E T7W E42 310 OFF ON OFF ON OFF PKFY P06 08NAMU E T7W E44 310 P12 15NGMU E T7W E42 310 ON ON OFF ON OFF P18 30NFMU E T7W E42 310 ON OFF ON ON OFF PFFY P06 24NEMU E R61 Y72 281 OFF OFF OFF OFF OFF P06 24NRMU E R61 Y72 281 OFF OFF OFF OFF OFF 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 Model Capacity model code SW2 setting 1 2 3 4 5 6 1 2 3 4 5 6 Model C...

Page 155: ...ctions 4 directions P12 24 P30 36 1 3 3 m 3 0 m 2 7 m 10 8 ft 9 8 ft 8 9f t 2 3 5 m 3 3 m 3 0 m 11 5 ft 10 8 ft 9 8 ft 3 3 5 m 3 5 m 11 5 ft 11 5 ft 1 4 0 m 3 6 m 3 2 m 13 1 ft 11 8 ft 10 5 ft 2 4 2 m 4 0 m 3 6 m 13 8 ft 13 1 ft 11 8 ft 3 4 2 m 4 2 m 13 8 ft 13 8 ft 3 2 1 SWA 3 2 1 SWA 3 2 1 SWA MODELS VOLT P15 24 208 0 200in WG 50Pa 0 321in WG 80Pa 0 120in WG 30Pa 230 0 240in WG 60Pa 0 401in WG 1...

Page 156: ...nits in the same group Sub remote controller 151 200 Add 150 to the smallest address of all the indoor units in the same group Setting of rotary switch Address No 01 99 1 101 199 with the 100 s digit automatically being set to 1 2 00 200 1 At factory shipment the rotary switch is set to 01 2 The address range that can be set with the ME remote controller is between 101 and 200 When the dials are s...

Page 157: ...peration 2 Bypass valve SV3 P168 P234 models only ON Open The opening of SV3 is controlled by the operating state of No 1 and No 2 compressors Operation SV1 ON OFF At No 1 compressor start up or at No 2 compressor start up P168 P234 models only ON for 4 minutes After the restoration of thermo or 3 minutes after restart ON for 2 minutes During cooling or heating operation with the compressor stoppe...

Page 158: ...Pa 29 psi or less During defrost operation See 1 in the figure below Always ON During oil recovery operation Always OFF during cooling operation and always ON during heating op eration when running an oil recovery operation after running a continuous operation at low frequency During an operation with the compressor running at 30 Hz After 3 minutes have passed since start up When low pressure LPS ...

Page 159: ... is detected and if it exceeds the upper limit the frequency is reduced by 5 Hz Control is performed 30 seconds after compressor start up and every 30 seconds thereafter Operating temperature is 115 C 239 F 4 Periodic frequency control Frequency control other than the ones performed at start up upon status change and for protection is called periodic fre quency control convergent control and is pe...

Page 160: ...n is detected and if it exceeds the upper limit the frequency is reduced by 5 Hz Control is performed 30 seconds after compressor start up and every 30 seconds thereafter Operating temperature is 115 C 239 F 4 Periodic frequency control Frequency control other than the ones performed at start up upon status change and for protection is called periodic fre quency control convergent control and is p...

Page 161: ...ation will not stop its operation for 2 minutes once started unless the piping temperature exceeds 25 C 77 F within 2 minutes in which case the operation will stop Above 20 C 68 F within 2 minutes for P126 model and above 4 Problems during defrost operation If a problem is detected during defrost operation the operation will be stopped and the defrost prohibition time based on the integrated compr...

Page 162: ...d later 4 Problems during defrost operation If a problem is detected during defrost operation the operation will be stopped and the defrost prohibition time based on the integrated compressor operation time will be set to 20 minutes 5 Change in the number of operating indoor units during defrost operation Even when there is a change in the number of operating indoor units during defrost operation ...

Page 163: ...are met 30 minutes have passed since the completion of previous refrigerant recovery When the unit keeps running for 3 minutes in a row or more with high discharge temperature Td 105 C 221 F or Pd 3 43 MPa 497 psi 35 kg cm2 G and SC0 10 deg C 18 deg F Refrigerant recovery Increase the opening of LEV1 Periodic control begins when 30 seconds have elapsed 10 Refrigerant Recovery Control PURY Recovery...

Page 164: ...closed when it is powered While the unit is stopped 21S4b is not powered cooling cycle and SV5b is open 12 Capacity Control of Outdoor Fan and Heat Exchanger PURY 1 Control method Depending on the capacity required the rotation speed of the outdoor unit fan is controlled by the inverter targeting a constant evaporation temperature of 0 C 32 F 0 71 MPa 103 psi during cooling operation and constant ...

Page 165: ...SV5b Cooling only 1 ON ON ON OFF ON ON 2 OFF OFF 3 OFF ON ON OFF OFF OFF 4 OFF ON OFF OFF OFF OFF 5 OFF OFF ON OFF OFF OFF 6 OFF OFF OFF OFF OFF OFF Cooling main 1 ON ON ON OFF ON ON 2 OFF OFF 3 OFF ON ON OFF OFF OFF 4 OFF ON OFF OFF OFF OFF 5 OFF OFF ON OFF OFF OFF 6 OFF OFF OFF OFF OFF OFF 8 OFF OFF OFF ON OFF OFF Heating only 1 ON ON ON OFF ON ON Heating main 1 ON ON ON OFF ON ON 2 ON ON ON OFF...

Page 166: ...ollowing course of operation 1 Flow chart of initial operation mode 2 Initial start up control of P168 P234 models time chart Example Start of initial operation mode Step 1 P72 P144 P168 P234 Operation of No 1 compressor only Exception Completed if discharge superheat reaches above 25 C 77 F within 5 minutes of start up Step 3 Forced operation of only No 2 compressor only Completed in the integrat...

Page 167: ...of P96 P234 models P52 model or less Start of initial operation mode Step 1 P72 P144 P168 P234 Operation of No 1 compressor only Exception Completed if discharge superheat reaches above 25 C 77 F within 5 minutes of start up Step 3 Forced operation of No 2 compressor only Completed in the integrated operation time of 5 minutes Completion of initial operation mode f 60 Hz Completed in the continuou...

Page 168: ...ther error reset is performed upon finishing an emergency operation the unit will repeat the procedures 1 through 3 under section 1 above To finish an emergency operation and to run a current carrying operation after correcting the error perform a power reset Pattern of emergency operation mode Error source Type of error that allows the unit to go into the emergency operation Type of error that do...

Page 169: ... F2 VPM control Rotation speed control of compressor or fan depending on the refrigerant pressure value and the changing speed Self contained capacity control depending on the load Refrigerant distribution control depending on the operation mode Outdoor unit Daisy chained non polar 2 wire transmission line Indoor unit BC controller Autonomous distributed control system A system that consists of th...

Page 170: ...ting Heating Heating Low pressure pipe High pressure pipe High pressure gas High pressure gas High pressure gas High pressure two phase Low pressure gas Low pressure gas Low pressure gas Low pressure gas Low pressure gas Gas liquid separator Outdoor unit BC controller Indoor unit LEV LEV M M L M L M L M L A O M L M L M L M L A O B C D I J J E F F N N N K M L M L M L G H A O L J G I K H D C F E B N...

Page 171: ...ode Stopped Fan Thermo OFF cannot be changed to heating from the remote controller If this attempt is mode Heating will flash on the remote controller The opposite is true when the outdoor unit is per forming a heating operation The first selection has the priority 1 Cooling mode 2 Heating mode 3 Dry mode 4 Fan mode 5 Stopping mode 1 Cooling mode All indoor units in operation are in cooling mode 2...

Page 172: ...this control is enabled the NIGHT MODE will be disabled Refer to 2 2 2 5 for detailed information on DEMAND control 1 Cooling mode 2 Heating mode 3 Dry mode 4 Automatic cooling heating mode 5 Fan mode 6 Stopping mode 1 Cooling only mode All indoor units in operation are in cooling mode 2 Heating only mode All indoor units in operation are in heating mode 3 Cooling main mode Coexistence of units in...

Page 173: ...ntrol 2 1 Liquid level control The liquid level detected by the liquid inlet temperature TH11 sensor is controlled so as to be within a certain range 2 Pressure differential control The detected differential pressure PS1 and P3 is controlle every minute so as to be within a certain range 110 110 3 3 Can be 110 or more due to pressure rise on the liquid side PS1 2000 1200 LEV2 only for NU GA model ...

Page 174: ...stop Error display Self holding of protection function Error command to outdoor unit Indoor unit LEV fully closed Refer to 2 1 Cooling operation Refer to 2 2 Heating operation Refer to 2 3 for dry operation Prohibition Prohibition Prohibition Dry display Heating display Cooling display Dry mode Heating mode Fan mode Fan display Fan operations Operation mode Cooling mode Operation command to outdoo...

Page 175: ...by the indoor unit However when the outdoor unit is running a cooling operation come of the operating indoor units will stop or the operation of these indoor units will be prohibited even when the indoor unit mode is switched from fan mode to heating mode This also applies when the outdoor unit is running a heating operation Start Breaker turned on Operation command Error stop Error display on the...

Page 176: ...mostat ON 3 minute restart prevention Note 1 YES YES YES NO NO NO 4 way valve OFF 1 Inverter frequency control 2 Indoor unit LEV LEV1 rated opening 3 Solenoid valve control 4 Outdoor unit fan control 5 52C1 control Normal operation During test run mode Unit in the stopped state Indoor unit fan operation 1 Inverter output 0Hz 2 Indoor unit LEV LEV1 rated opening 3 All solenoid valves OFF 4 Outdoor ...

Page 177: ...lve OFF Stopping the defrost operation Stopping the defrost operation Return to heating operation 1 Indoor unit fan stops 2 Inverter defrost frequency control 3 Indoor unit LEV fully closed 4 Solenoid valve control 5 Outdoor unit fan stop 6 LEV1 control 7 52C1 control Note 1 When outdoor unit starts defrosting it transmits defrost operations command to indoor unit and the indoor unit starts defros...

Page 178: ...oor unit fan stop 6 52C1 OFF 1 or 2 Note 1 When the indoor unit inlet temperature exceeds 18 C 64 F the outdoor unit compressor and the indoor unit fan start the intermittent operation simultaneously When the indoor unit inlet temperature becomes 18 C 64 F or less the fan always runs at low speed The outdoor unit the indoor unit and the solenoid valve operate in the same way as they do in the cool...

Page 179: ...ote 3 1 Protection function self holding cancelled 2 Indoor unit LEV fully closed 1 Auxiliary heater OFF 2 Low fan speed for 1 minute YES YES YES YES YES YES YES YES Normal operation Error Stop 1 Prohibition Auto COOL HEAT display Automatic cooling heating mode Note 3 YES Auto cooling heating mode 1 1 Note 1 Indoor unit LEV fully closed Opening 41 Note 2 The system may go into the error mode on ei...

Page 180: ...ch for the indoor unit address for the remote controller address and for the group information will start During this HO PLEASE WAIT blinks on the display of the remote controller When the indoor unit to be controlled by the remote controller is missing HO PLEASE WAIT keeps blinking on the display of the remote controller even after 3 or more minutes after power on Note 3 The units will follow the...

Page 181: ...mitted to the outdoor unit 3 3 Operation mode Note 1 The system may go into the error mode on either the indoor unit side or the BC controller or outdoor unit side If some of the indoor units are experiencing a problem only those indoor units that are experiencing the problem will stop If the BC controller or the outdoor unit is experiencing a problem all the connected units will stop Operation mo...

Page 182: ... 4 Outdoor unit fan control 5 BC controller solenoid valve control 6 BC controller control Normal operation During test run mode Indoor unit fan operation 1 Inverter output 0Hz 2 Indoor unit LEV Oil return LEV fully closed 3 Solenoid valves OFF 4 Outdoor unit fan stop 5 BC controller solenoid valves OFF 6 BC controller LEV fully closed Unit in the stopped state 2 3 Note 1 The indoor fan operates a...

Page 183: ... Stopping the defrost operation 1 Indoor unit fan stop 2 Inverter defrost frequency control 3 Indoor unit LEV fully open 4 Solenoid valve control 5 Outdoor unit fan stop 6 BC controller solenoid valve control 7 BC controller LEV control 4 way valve OFF 1 3 Note 1 When the outdoor unit goes into the defrost mode defrost command is sent to the BC controller and indoor units Upon reception of the com...

Page 184: ...ully closed 2 3 Note 1 When the indoor unit inlet temperature exceeds 18 C 64 F the outdoor unit compressor and the indoor unit fan start the intermittent operation simultaneously When the indoor unit inlet temperature becomes 18 C 64 F or less the fan always runs at low speed The outdoor unit the indoor unit and the solenoid valve operate in the same way as they do in the cooling operation when t...

Page 185: ... 176 ...

Page 186: ...e a Test Run 179 2 Test Run Method 180 3 Operating Characteristic and Refrigerant Amount 181 4 Adjusting the Refrigerant Amount 182 5 Refrigerant Amount Adjust Mode 187 6 The following symptoms are normal 191 7 Standard Operation Data Reference Data 192 ...

Page 187: ... 178 ...

Page 188: ...ime because of the accumulation of refrigerant in the compressor 4 If insulation resistance reads at least 1Mohm by turning on the main power and powering the crankcase heater for at least 12 hours the refrigerant in the compressor will evaporate and the insulation resistance will go up 5 Do not measure the insulation resistance of the terminal block for transmission line for the unit remote contr...

Page 189: ...owing out Switch to cooling or heating operation by pressing the Operation Mode button Press the Fan Speed button Change the air flow direction by pressing the Vertical Air Direction button or the Louver button Confirm the operation of outdoor unit fan Confirm the operation of all interlocked equipment such as ventilation equipment Note 1 Refer to the following pages if an error code appears on th...

Page 190: ... indoor units are in operation 3 General tendency of discharge temperature Discharge temperature tends to rise when the system is short on refrigerant Changing the amount of refrigerant in the system while there is refrigerant in the accumulator has little effect on the discharge temperature The higher the pressure the more likely it is for the discharge temperature to rise The lower the pressure ...

Page 191: ...rcharged refrigerant 2 The operating frequency does not reach the set frequency and there is a problem with performance Insufficient refrigerant amount 3 The system comes to an abnormal stop displaying 1102 abnormal discharge temper ature on the controller Symptoms Conclusion 1 Discharge temperature is high Normal discharge temperature is below 95 C 203 F Slightly under charged refrigerant 2 Low p...

Page 192: ... in the outdoor unit kg lbs oz 7 0 15 7 9 5 20 16 9 5 20 16 13 0 28 11 13 0 28 11 Outdoor unit model P168 P192 P204 P216 P234 Amount of pre charged re frigerant in the outdoor unit kg lbs oz 22 0 48 9 22 0 48 9 22 0 48 9 22 0 48 9 22 0 48 9 Amount of added refrigerant kg 0 2 x L1 0 12 x L2 0 06 x L3 0 024 x L4 αAmount of added refrigerant oz 2 15 x L1 1 29 x L2 0 65 x L3 0 26 x L4 α L1 Length of ø...

Page 193: ...result would be 15 44 and it is rounded up to the nearest 0 1 The calculation result would be 540 7oz and it is rounded up to the nearest 1 oz or 4 oz The final result will be as follows Amount of refrigerant to be charged kg 0 2 X 40 0 06 X 70 0 024 X 10 3 15 44kg Amount of refrigerant to be charged 15 5kg The final result will be as follows Amount of refrigerant to be charged oz 2 15 X 130 0 65 ...

Page 194: ...L2 0 23 x L3 0 16 x L4 0 11 x L5 0 12 x L6 0 06 x L7 0 024 x L8 α1 α2 Amount of added refrigerant oz 390 x L1 3 33 x L2 2 47 x L3 1 72 x L4 1 18 x L5 1 29x L6 0 65 x L7 0 26 x L8 α1 α2 L1 Length of ø28 58 1 1 8 high pressure pipe m L2 Length of ø25 4 1 high pressure pipe m L3 Length of ø22 2 7 8 high pressure pipe m L4 Length of ø19 05 3 4 high pressure pipe m L5 Length of ø15 88 5 8 high pressure...

Page 195: ...Main pipe Indoor Indoor e Indoor unit 1 96 model Outdoor unit 168 model 2 24 model 3 18 model 4 48 model 5 06 model A 22 2 7 8 40 m 131 ft 19 05 3 4 A 40 m 130 ft 9 52 3 8 B a b d 35 m 112 ft 6 35 1 4 c e 20 m 65 ft B 9 52 3 8 10 m 32 ft a 9 52 3 8 10 m 32 ft b 9 52 3 8 5 m 16 ft c 6 35 1 4 10 m 32 ft d 9 52 3 8 10 m 32 ft The aggregate length of each liquid pipe type When e 6 35 1 4 10 m 32 ft Ac...

Page 196: ... F or above and the SH of the indoor unit is between 5 and 15K 9 and 27 F to determine that the refrigerant amount is adequate 2 High pressure must be at least 2 0MPa 290psi to enable a proper adjustment of refrigerant amount to be made 3 Adjust the refrigerant amount based on the values of TH1 TH5 TH7 and Tc and by following the flow chart below TH1 TH5 TH7 and Tc can be displayed by setting the ...

Page 197: ... Note 1 Note 1 Note 3 Gradually add refrigerant from the service port on the low pressure side Keep the unit running for 5 minutes after adjusting the refrigerant amount to determine its adequacy Keep the unit running for 5 minutes after adjusting the refrigerant amount to determine its adequacy SW2 4 OFF SW2 4 ON Adjustment complete Note 4 Has the initial start up mode been completed Gradually ad...

Page 198: ...rant amount is adequate SC11 BC controller inlet liquid refrigerant subcool SC16 BC controller outlet liquid refrigerant subcool 2 High pressure must be at least 2 0MPa 290psi to enable a proper adjustment of refrigerant amount to be made 3 Adjust the refrigerant amount based on the values of TH11 and by following the flow chart below TH11 SC11 and SC16 can be displayed by setting the self diagnos...

Page 199: ... NO NO NO NO YES NO NO YES YES YES YES YES YES YES YES YES Has the LEV opening been stabilized on all indoor units Note 1 Note 2 TH11 95 C 203 F Keep the unit running for 5 minutes after adjusting the refrigerant amount to determine its adequacy Gradually add refrigerant from the service port on the low pressure side Adjustment complete SW2 4 OFF Note 4 Keep the unit running for 5 minutes after ad...

Page 200: ...pped Display is off When the auxiliary heater is turned on the fan operates for one minute after stopping to dissipate heat The fan speed does not reach the set speed when operation switch is turned on STAND BY The fan operates at extra low speed for 5 minutes after it is turned on or until the pipe temperature reaches 35 C 95 F then it operates at low speed for 2 minutes and finally it operates a...

Page 201: ...5 Fan speed Hi Hi Amount of refrigerant kg 11 0 13 9 Outdoor unit Electric current A 19 9 18 0 26 7 24 1 Voltage V 208 230 208 230 Compressor frequency Hz 53 70 LEV opening Indoor unit Pulse 253 441 362 187 325 253 441 187 SC LEV1 82 100 Pressure High pressure after O S low pressure before accumulator MPa 3 00 0 92 2 87 0 96 Temp of each sec tion Outdoor unit Discharge TH11 C 84 86 Heat exchanger ...

Page 202: ...nt kg 13 9 14 7 Outdoor unit Electric current A 30 0 27 1 35 0 31 6 Voltage V 208 230 208 230 Compressor frequency Hz 77 89 LEV opening Indoor unit Pulse 387 275 441 261 373 387 441 261 SC LEV1 123 140 Pressure High pressure after O S low pressure before accumulator MPa 3 05 0 92 3 21 0 87 Temp of each sec tion Outdoor unit Discharge TH11 C 83 88 Heat exchanger out let TH5 46 46 Accumu lator Inlet...

Page 203: ...6 Outdoor unit Electric current A 43 8 39 6 46 1 41 7 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 103 65 60 LEV opening Indoor unit Pulse 324 325 441 261 324 387 275 362 SC LEV1 164 183 Pressure High pressure after O S low pressure before accumulator MPa 2 91 0 94 2 95 0 86 Temp of each sec tion Outdoor unit Discharge TH11 TH12 C 86 82 85 Heat exchanger out let TH5 45 41 Accumu lat...

Page 204: ...door unit Electric current A 53 4 48 3 57 7 52 1 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 78 60 88 60 LEV opening Indoor unit Pulse 388 387 325 261 388 373 387 362 SC LEV1 204 226 Pressure High pressure after O S low pressure before accumulator MPa 3 02 0 86 2 85 0 85 Temp of each sec tion Outdoor unit Discharge TH11 TH12 C 84 87 84 87 Heat exchanger out let TH5 42 40 Accumu lat...

Page 205: ...oor unit Electric current A 61 4 55 5 66 6 60 3 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 98 60 107 60 LEV opening Indoor unit Pulse 324 324 387 362 222 388 324 387 362 222 SC LEV1 246 266 Pressure High pressure after O S low pressure before accumulator MPa 2 93 0 84 3 03 0 83 Temp of each sec tion Outdoor unit Discharge TH11 TH12 C 84 86 86 86 Heat exchanger out let TH5 41 43 Ac...

Page 206: ...gth 45 45 Fan speed Hi Hi Amount of refrigerant kg 11 0 13 9 Outdoor unit Electric current A 19 5 17 6 26 4 23 8 Voltage V 208 230 208 230 Compressor frequency Hz 55 73 LEV opening Indoor unit Pulse 259 455 373 194 332 259 455 194 SC LEV1 Pressure High pressure after O S low pressure before accumulator MPa 2 82 0 67 2 70 0 65 Temp of each sec tion Outdoor unit Discharge TH11 C 79 76 Heat exchanger...

Page 207: ... Fan speed Hi Hi Amount of refrigerant kg 13 9 14 7 Outdoor unit Electric current A 30 6 27 6 36 0 32 5 Voltage V 208 230 208 230 Compressor frequency Hz 84 93 LEV opening Indoor unit Pulse 406 280 455 254 384 406 455 254 SC LEV1 Pressure High pressure after O S low pressure before accumulator MPa 2 70 0 65 2 71 0 67 Temp of each sec tion Outdoor unit Discharge TH11 C 76 76 Heat exchanger outlet T...

Page 208: ...Hi Amount of refrigerant kg 18 2 21 6 Outdoor unit Electric current A 42 1 38 1 46 3 41 9 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 103 62 60 LEV opening Indoor unit Pulse 332 332 455 254 332 406 280 373 SC LEV1 Pressure High pressure after O S low pressure before accumulator MPa 2 43 0 68 2 83 0 69 Temp of each sec tion Outdoor unit Discharge TH11 TH12 C 71 75 78 Heat exchanger ...

Page 209: ...ount of refrigerant kg 22 1 28 1 Outdoor unit Electric current A 53 9 48 7 57 5 52 0 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 82 60 93 60 LEV opening Indoor unit Pulse 400 406 332 254 400 384 406 373 SC LEV1 Pressure High pressure after O S low pressure before accumulator MPa 2 89 0 68 2 83 0 69 Temp of each sec tion Outdoor unit Discharge TH11 TH12 C 76 81 76 79 Heat exchanger ...

Page 210: ...nt of refrigerant kg 28 3 29 3 Outdoor unit Electric current A 64 8 58 6 71 2 64 4 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 105 60 113 60 LEV opening Indoor unit Pulse 332 332 406 373 229 400 332 406 373 229 SC LEV1 Pressure High pressure after O S low pressure before accumulator MPa 2 85 0 66 2 86 0 63 Temp of each sec tion Outdoor unit Discharge TH11 TH12 C 79 82 83 85 Heat ex...

Page 211: ...nt of refrigerant lbs oz 24 4 30 10 Outdoor unit Electric current A 19 9 18 0 26 7 24 1 Voltage V 208 230 208 230 Compressor frequency Hz 53 70 LEV opening Indoor unit Pulse 253 441 362 187 325 253 441 187 SC LEV1 82 100 Pressure High pressure after O S low pressure before accumulator psi 435 133 416 139 Temp of each sec tion Outdoor unit Discharge TH11 F 183 187 Heat exchanger out let TH5 102 106...

Page 212: ...oz 30 10 32 6 Outdoor unit Electric current A 30 0 27 1 35 0 31 6 Voltage V 208 230 208 230 Compressor frequency Hz 77 89 LEV opening Indoor unit Pulse 387 275 441 261 373 387 441 261 SC LEV1 123 140 Pressure High pressure after O S low pressure before accumulator psi 442 133 466 126 Temp of each sec tion Outdoor unit Discharge TH11 F 181 190 Heat exchanger out let TH5 115 115 Accumu lator Inlet 5...

Page 213: ...utdoor unit Electric current A 43 8 39 6 46 1 41 7 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 103 65 60 LEV opening Indoor unit Pulse 324 325 441 261 324 387 275 362 SC LEV1 164 183 Pressure High pressure after O S low pressure before accumulator psi 422 136 428 125 Temp of each sec tion Outdoor unit Discharge TH11 TH12 F 187 180 185 Heat exchanger out let TH5 113 106 Accumu lator...

Page 214: ... unit Electric current A 53 4 48 3 57 7 52 1 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 78 60 88 60 LEV opening Indoor unit Pulse 388 387 325 261 388 373 387 362 SC LEV1 204 226 Pressure High pressure after O S low pressure before accumulator psi 438 125 413 123 Temp of each sec tion Outdoor unit Discharge TH11 TH12 F 183 189 183 189 Heat exchanger out let TH5 108 104 Accumu lator...

Page 215: ...it Electric current A 61 4 55 5 66 6 60 3 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 98 60 107 60 LEV opening Indoor unit Pulse 324 324 387 362 222 388 324 387 362 222 SC LEV1 246 266 Pressure High pressure after O S low pressure before accumulator psi 425 122 439 120 Temp of each sec tion Outdoor unit Discharge TH11 TH12 F 183 187 187 187 Heat exchanger out let TH5 106 109 Accumu...

Page 216: ...7 Fan speed Hi Hi Amount of refrigerant lbs oz 24 4 30 12 Outdoor unit Electric current A 19 5 17 6 26 4 23 8 Voltage V 208 230 208 230 Compressor frequency Hz 55 73 LEV opening Indoor unit Pulse 259 455 373 194 332 259 455 194 SC LEV1 Pressure High pressure after O S low pressure before accumulator psi 409 97 392 94 Temp of each sec tion Outdoor unit Discharge TH11 F 174 169 Heat exchanger outlet...

Page 217: ...eed Hi Hi Amount of refrigerant lbs oz 30 12 32 6 Outdoor unit Electric current A 30 6 27 6 36 0 32 5 Voltage V 208 230 208 230 Compressor frequency Hz 84 93 LEV opening Indoor unit Pulse 406 280 455 254 384 406 455 254 SC LEV1 Pressure High pressure after O S low pressure before accumulator psi 392 94 393 97 Temp of each sec tion Outdoor unit Discharge TH11 F 169 169 Heat exchanger outlet TH5 34 ...

Page 218: ... of refrigerant lbs oz 40 2 47 10 Outdoor unit Electric current A 42 1 38 1 46 3 41 9 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 103 62 60 LEV opening Indoor unit Pulse 332 332 455 254 332 406 280 373 SC LEV1 Pressure High pressure after O S low pressure before accumulator psi 352 99 410 100 Temp of each sec tion Outdoor unit Discharge TH11 TH12 F 160 167 172 Heat exchanger outlet...

Page 219: ...rigerant lbs oz 48 11 61 14 Outdoor unit Electric current A 53 9 48 7 57 5 52 0 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 82 60 93 60 LEV opening Indoor unit Pulse 400 406 332 254 400 384 406 373 SC LEV1 Pressure High pressure after O S low pressure before accumulator psi 419 99 410 100 Temp of each sec tion Outdoor unit Discharge TH11 TH12 F 169 178 169 174 Heat exchanger outlet...

Page 220: ...igerant lbs oz 62 6 64 10 Outdoor unit Electric current A 64 8 58 6 71 2 64 4 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 105 60 113 60 LEV opening Indoor unit Pulse 332 332 406 373 229 400 332 406 373 229 SC LEV1 Pressure High pressure after O S low pressure before accumulator psi 413 96 415 91 Temp of each sec tion Outdoor unit Discharge TH11 TH12 F 174 180 181 185 Heat exchanger...

Page 221: ...Total pipe length 45 45 Fan speed Hi Hi Amount of refrigerant kg 14 8 18 4 Outdoor unit Electric current A 19 9 18 0 26 7 24 1 Voltage V 208 230 208 230 Compressor frequency Hz 53 70 LEV opening Indoor unit Pulse 253 441 362 187 325 253 441 187 BC controller 1 2 3 2000 130 2000 135 Pressure High pressure low pressure MPa 3 00 0 92 2 87 0 96 BC controller on the liquid side Intermediate part 2 85 2...

Page 222: ...5 45 Fan speed Hi Hi Amount of refrigerant kg 18 4 18 9 Outdoor unit Electric current A 30 0 27 1 35 0 31 6 Voltage V 208 230 208 230 Compressor frequency Hz 77 89 LEV opening Indoor unit Pulse 387 275 441 261 373 387 441 261 BC controller 1 2 3 2000 150 2000 160 Pressure High pressure low pressure MPa 3 05 0 92 3 21 0 87 BC controller on the liquid side Intermediate part 2 90 2 90 3 04 3 04 Temp ...

Page 223: ...Hi Amount of refrigerant kg 22 2 27 7 Outdoor unit Electric current A 43 8 39 6 46 1 41 7 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 103 65 60 LEV opening Indoor unit Pulse 324 325 441 261 324 387 275 362 BC controller 1 2 3 2000 2000 180 2000 2000 190 Pressure High pressure low pressure MPa 2 91 0 94 2 75 0 86 BC controller on the liquid side Intermediate part 2 76 2 76 2 60 2 60...

Page 224: ...unt of refrigerant kg 28 2 29 0 Outdoor unit Electric current A 53 4 48 3 57 7 52 1 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 78 60 88 60 LEV opening Indoor unit Pulse 388 387 325 261 388 373 387 362 BC controller 1 2 3 2000 2000 200 2000 2000 210 Pressure High pressure low pressure MPa 2 80 0 86 2 85 0 85 BC controller on the liquid side Intermediate part 2 65 2 65 2 69 2 69 Tem...

Page 225: ...nt of refrigerant kg 28 9 29 9 Outdoor unit Electric current A 61 4 55 5 66 6 60 3 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 98 60 107 60 LEV opening Indoor unit Pulse 324 324 387 362 222 388 324 387 362 222 BC controller 1 2 3 2000 2000 225 2000 2000 240 Pressure High pressure low pressure MPa 2 93 0 84 3 03 0 83 BC controller on the liquid side Intermediate part 2 76 2 76 2 84 ...

Page 226: ... pipe length 45 45 Fan speed Hi Hi Amount of refrigerant kg 14 8 18 4 Outdoor unit Electric current A 19 5 17 6 26 4 23 8 Voltage V 208 230 208 230 Compressor frequency Hz 55 73 LEV opening Indoor unit Pulse 450 695 555 310 555 450 695 310 BC controller 1 2 3 110 520 110 590 Pressure High pressure low pressure MPa 2 82 0 67 2 71 0 67 BC controller on the liquid side Intermediate part 2 72 2 72 2 6...

Page 227: ...h 45 45 Fan speed Hi Hi Amount of refrigerant kg 18 4 18 9 Outdoor unit Electric current A 30 6 27 6 36 0 32 5 Voltage V 208 230 208 230 Compressor frequency Hz 84 93 LEV opening Indoor unit Pulse 597 478 695 345 668 597 695 345 BC controller 1 2 3 110 660 110 730 Pressure High pressure low pressure MPa 2 70 0 65 2 71 0 65 BC controller on the liquid side Intermediate part 2 60 2 60 2 61 2 61 Temp...

Page 228: ... Hi Hi Amount of refrigerant kg 22 2 27 7 Outdoor unit Electric current A 42 1 38 1 46 3 41 9 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 103 62 60 LEV opening Indoor unit Pulse 555 555 695 345 597 555 695 345 BC controller 1 2 3 110 110 880 110 110 870 Pressure High pressure low pressure MPa 2 43 0 68 2 81 0 70 BC controller on the liquid side Intermediate part 2 35 2 35 2 76 2 76...

Page 229: ...i Amount of refrigerant kg 28 2 29 0 Outdoor unit Electric current A 53 9 48 7 57 5 52 0 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 82 60 93 60 LEV opening Indoor unit Pulse 597 597 555 345 597 597 597 695 BC controller 1 2 3 110 110 980 110 110 1050 Pressure High pressure low pressure MPa 2 82 0 70 2 83 0 69 BC controller on the liquid side Intermediate part 2 76 2 76 2 77 2 77 T...

Page 230: ...Amount of refrigerant kg 28 9 29 9 Outdoor unit Electric current A 64 8 58 6 71 2 64 4 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 99 60 105 60 LEV opening Indoor unit Pulse 555 555 597 555 367 597 555 597 555 367 BC controller 1 2 3 110 110 1120 110 110 1190 Pressure High pressure low pressure MPa 2 85 0 66 2 86 0 63 BC controller on the liquid side Intermediate part 2 78 2 78 2 7...

Page 231: ...tal pipe length 147 147 Fan speed Hi Hi Amount of refrigerant lbs oz 32 10 40 9 Outdoor unit Electric current A 19 9 18 0 26 7 24 1 Voltage V 208 230 208 230 Compressor frequency Hz 53 70 LEV opening Indoor unit Pulse 253 441 362 187 325 253 441 187 BC controller 1 2 3 2000 130 2000 135 Pressure High pressure low pressure psi 435 133 416 139 BC controller on the liquid side Intermediate part 413 4...

Page 232: ...Fan speed Hi Hi Amount of refrigerant lbs oz 40 9 41 11 Outdoor unit Electric current A 30 0 27 1 35 0 31 6 Voltage V 208 230 208 230 Compressor frequency Hz 77 89 LEV opening Indoor unit Pulse 387 275 441 261 373 387 441 261 BC controller 1 2 3 2000 150 2000 160 Pressure High pressure low pressure psi 442 133 446 126 BC controller on the liquid side Intermediate part 421 421 441 441 Temp of each ...

Page 233: ...unt of refrigerant lbs oz 48 15 61 1 Outdoor unit Electric current A 43 8 39 6 46 1 41 7 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 103 65 60 LEV opening Indoor unit Pulse 324 325 441 261 324 387 275 362 BC controller 1 2 3 2000 2000 180 2000 2000 190 Pressure High pressure low pressure psi 422 136 399 125 BC controller on the liquid side Intermediate part 400 400 377 377 Temp of ...

Page 234: ... refrigerant lbs oz 62 3 63 15 Outdoor unit Electric current A 53 4 48 3 57 7 52 1 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 78 60 88 60 LEV opening Indoor unit Pulse 388 387 325 261 388 373 387 362 BC controller 1 2 3 2000 2000 200 2000 2000 210 Pressure High pressure low pressure psi 406 125 413 123 BC controller on the liquid side Intermediate part 384 384 390 390 Temp of each...

Page 235: ...frigerant lbs oz 63 11 65 15 Outdoor unit Electric current A 61 4 55 5 66 6 60 3 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 98 60 107 60 LEV opening Indoor unit Pulse 324 324 387 362 222 388 324 387 362 222 BC controller 1 2 3 2000 2000 225 2000 2000 240 Pressure High pressure low pressure psi 425 122 439 120 BC controller on the liquid side Intermediate part 400 400 412 412 Temp ...

Page 236: ...ngth 147 147 Fan speed Hi Hi Amount of refrigerant lbs oz 32 10 40 9 Outdoor unit Electric current A 19 5 17 6 26 4 23 8 Voltage V 208 230 208 230 Compressor frequency Hz 55 73 LEV opening Indoor unit Pulse 450 695 555 310 555 450 695 310 BC controller 1 2 3 110 520 110 590 Pressure High pressure low pressure psi 409 97 393 97 BC controller on the liquid side Intermediate part 395 395 379 379 Temp...

Page 237: ...47 Fan speed Hi Hi Amount of refrigerant lbs oz 40 9 41 11 Outdoor unit Electric current A 30 6 27 6 36 0 32 5 Voltage V 208 230 208 230 Compressor frequency Hz 84 93 LEV opening Indoor unit Pulse 597 478 695 345 668 597 695 345 BC controller 1 2 3 110 660 110 730 Pressure High pressure low pressure psi 392 94 393 94 BC controller on the liquid side Intermediate part 377 377 379 379 Temp of each s...

Page 238: ...Amount of refrigerant lbs oz 48 15 61 1 Outdoor unit Electric current A 42 1 38 1 46 3 41 9 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 103 62 60 LEV opening Indoor unit Pulse 555 555 695 345 597 555 695 345 BC controller 1 2 3 110 110 880 110 110 870 Pressure High pressure low pressure psi 352 99 408 102 BC controller on the liquid side Intermediate part 341 341 400 400 Temp of ea...

Page 239: ...of refrigerant lbs oz 62 3 63 15 Outdoor unit Electric current A 53 9 48 7 57 5 52 0 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 82 60 93 60 LEV opening Indoor unit Pulse 597 597 555 345 597 597 597 695 BC controller 1 2 3 110 110 980 110 110 1050 Pressure High pressure low pressure psi 409 102 410 100 BC controller on the liquid side Intermediate part 400 400 402 402 Temp of each ...

Page 240: ... refrigerant lbs oz 63 11 65 15 Outdoor unit Electric current A 64 8 58 6 71 2 64 4 Voltage V 208 230 208 230 Compressor frequency No 1 No 2 Hz 99 60 105 60 LEV opening Indoor unit Pulse 555 555 597 555 367 597 555 597 555 367 BC controller 1 2 3 110 110 1120 110 110 1190 Pressure High pressure low pressure psi 413 96 415 91 BC controller on the liquid side Intermediate part 403 403 405 405 Temp o...

Page 241: ... 232 ...

Page 242: ...oller 239 3 Investigation of Transmission Wave Shape Noise 314 4 Troubleshooting Principal Parts 317 5 Refrigerant Leak 350 6 Compressor Replacement Instructions only P168 P234 types 351 7 Collecting the Cooling Liquid from the Accumulator Only P168 P234 types 353 8 Servicing the BC controller 354 ...

Page 243: ... 234 ...

Page 244: ... phase open phase O 4108 4158 Overcurrent protection O 4115 Power supply sync signal abnormality O 4116 RPM error Motor malfunction O O 4220 4225 Note 4320 4325 Note 108 Bus voltage drop S W detection O 109 Bus voltage rise S W detection O 110 Bus voltage abnormality H W detection O 111 Logic error O 4230 4235 Note 4330 4325 Note Heatsink overheat protection O 4240 4245 Note 4340 4345 Note Overloa...

Page 245: ...mperature sensor failure Pipe TH5 O 5106 1221 Temperature sensor failure Outside air temperature TH6 O 5107 1216 Temperature sensor failure SC coil outlet TH7 O 5108 1217 Temperature sensor failure SC coil bypass outlet TH8 O 5110 1214 01 05 Note Temperature sensor failure Heatsink THHS O 5111 Temperature sensor failure BC controller BC controller liquid inlet TH11 O 5112 Bypass outlet TH12 O 5115...

Page 246: ...ror with the transmission pro cessor O O O O O 6607 No ACK O O O O O 6608 No response O O O O O 6831 MA communication transmission error No receipt O O 6832 MA communication receipt error Synchronization O O 6833 MA communication transmission error Hardware error O O 6834 MA communication transmission error Start bit detection error O O 7100 Total capacity error O 7101 Capacity code error O O O 71...

Page 247: ... 4225 Bus voltage drop in the fan inverter system Code 4250 IPM overcurrent breaker trip in the compressor inverter system The last digit Inverter address system Inverter system 0 or 1 1 Compressor inverter system 5 5 Fan inverter system ...

Page 248: ...aulty wiring Check for wiring between the con nector CNRS3B on the main board and the connector CNRS1 on the compressor INV board or between the connector CNRS3A on the main board and the connector CNRS2 on the FAN INV board and check contact of the connectors Check for contact of the connector CNAC3 on the main board or of the connector CNTR on the FAN INV board 2 Inverter address switch setting ...

Page 249: ... regarded as the first detection and the operation de scribed in step 1 above will start 5 For 30 minutes after the stop the first stop or the second stop of the outdoor unit pre liminary errors will be displayed on the LED display 1 Gas leak gas shortage Refer to the page on refrigerant amount evaluation 2 Overload operation Check operating conditions and op eration status of indoor outdoor units...

Page 250: ...1 Inner pressure drop due to a leakage 2 Low pressure sensor fail ure 3 Short circuited pressure sensor cable due to torn outer rubber 4 A pin on the male connec tor is missing 5 Disconnected wire 6 Failure of the low pressure input circuit on the control ler board Refer to the section on troubleshoot ing the low pressure sensor Error Code Error definition and error detection method Cause Check me...

Page 251: ...ure caused by lowered condensing capacity in heating operation for 2 7 Check the indoor units for problems and correct them if any 8 Short cycle on the outdoor unit 9 Dirty heat exchanger of the out door unit 10 Outdoor fan including fan parts failure motor failure or fan controller malfunction Rise in discharge temp by low pressure drawing for 3 6 Check the fan on the outdoor unit Refer to the se...

Page 252: ...re than 30 minutes after the out door unit stops and the operation de scribed in step 1 above will start 4 For 30 minutes after the stop of the outdoor unit preliminary errors will be displayed on the LED display 1 Overcharged refrigerant Refer to the page on refrigerant amount evaluation 2 Thermistor input circuit failure on the main board 3 Faulty mounting of ther mistor TH11 TH12 Check the temp...

Page 253: ...he drain pan When a large amount of water returns the gradient of drain pipe may be the reason Check whether the drain pipe is in stalled properly as the instruc tions in the installation manual say Furthermore check wheth er the gradient of the unit instal lation is horizontal An error may occur due to return water de pending on the gradient Target gradient approximately 0 5 After checking the ab...

Page 254: ...nd turn it on again 4103 Reverse phase open phase 1 When turning on the power the operation cannot be started be cause of the open phase of one of the power lines L1 L2 or L3 1 Faulty wiring Check whether the phase of the power supply terminal block TB1 is normal Check the wiring between the pow er supply terminal block TB1 and the main boards CN20 and CN21 2 Main board failure If the above faults...

Page 255: ...on the com pressor side insulate the power line and start operation The compressor is faulty if 52C2 normally turns on 4115 Power supply sync signal ab normality The frequency cannot be determined when the power is switched on 1 Power supply error Check the voltage of the power sup ply terminal block TB1 2 A fuse is blown Check the fuses on the main board F01 and F02 3 Faulty wiring Measure voltag...

Page 256: ...CN52C1 on the main board Refer to 3 2 Check whether 52C1 works normally Refer to 4 Or check 52C1 wire connection 3 Check for diode stack failure Refer to 5 4 Check the wiring and the connectors of the CNVDC on the FAN INV board Replace FAN INV board when no fault is found for the above 1 4 3 Main board failure Check whether AC208 230V is applied to the male connector CN52C1 on the main board durin...

Page 257: ... or higher is detected In the case of 4235 When the heat sink temperature THHS1 85 C 185 F or higher is detected 1 Power supply environment Measure the power supply voltage Ensure that the power supply volt age is 187V or more between each phase 2 Air passage blockage Check that the heat sink cooling air passage is not blocked 3 Faulty wiring Check for cooling fan wiring 4 THHS failure Check for T...

Page 258: ...HHS5 6 Compressor INV board failure and cooling fan fail ure Check that a voltage of 208 230V is applied to the compressor INV board connector CNFAN while the inverter is in operation 7 Cooling failure Check the cooling fan operation un der the above operating conditions 8 Current sensor ACCT failure Refer to 9 4 8 4 Current sensor ACCT 9 Compressor Inverter cir cuit failure Refer to 9 4 8 2 4 Che...

Page 259: ...ail code 104 When IPM short damage or grounding on the load side is detected just be fore starting the inverter In the case of 4250 1 Grounding fault of com pressor 2 Inverter output related Refer to 9 4 8 2 In the case of 4255 1 Grounding fault of fan mo tor 2 FAN INV board failure Refer to 9 4 8 2 6 Refer to 9 4 8 2 7 Overcurrent error due to short circuited motor Detail code105 When a short is ...

Page 260: ...ling oper ation for 3 minutes after the compressor turns on 1 Thermistor failure 2 Connector contact failure 3 Disconnected wire or par tial disconnected ther mistor wire 4 Unattached thermistor or contact failure Check the thermistor resistor 0 C 32 F 15 kohm 10 C 50 F 9 7 kohm 20 C 68 F 6 4 kohm 30 C 86 F 4 3 kohm 40 C 104 F 3 1 kohm 5102 Liquid pipe 5103 Gas pipe 5104 Outdoor air temperature 5 ...

Page 261: ... 5101 5103 5104 5105 5106 5107 or 5108 will appear 5 During 3 minute anti restart mode prelimi nary errors will be dis played on the LED display 6 A short or an open de scribed above is not detected for 10 min utes after the com pressor start during defrost mode or for 3 minutes after defrost mode 1 Thermistor failure Check thermistor resistance 5105 Piping TH5 2 Pinched lead wire Check for pinche...

Page 262: ... high pressure sensor detects 0 098MPa 14psi or less during the opera tion the outdoor unit stops once turns to anti restart mode for 3 minutes and restarts after 3 minutes when the detected high pressure sensor is 0 098MPa 14psi or more 2 If the high pressure sensor detects 0 098MPa 14psi or less just before the re start the outdoor unit makes an error stop and the error code 5201 will appear 3 D...

Page 263: ...rms is de tected during inverter op eration 1 Contact failure Check the contact of the connector CNCT2 ACCT on the compressor INV board 2 ACCT sensor failure Replace the ACCT sensor DCCT sensor failure Detail code 116 When the bus current less than 18 Apeak is de tected at startup 1 Contact failure Check the contact of the connector CNCT DCCT on the compressor INV board and the contact around the ...

Page 264: ...remote controllers for the outdoor units the indoor units LOSSNAY and the M NET remote controllers have the same address es Example The error code 6600 01 appeared on the display on the remote control ler indicates that an error occurred in No 1 unit Two or more units whose addresses are 01 exist in the same system Search for the unit which has the same ad dress with that of the source of the trou...

Page 265: ... indoor units connected to different outdoor units or in case of the system connected with MELANS Check method and remedy NO Tightly reconnect the male power supply connector to the female power supply switch connector CN40 YES YES YES YES YES YES NO NO NO NO Is the transmission line work performed while the power is on Check the power source of the indoor unit 208 230V Check the transmission line...

Page 266: ...tes that the error source controller is a failure If noise exists investigate the noise No noise indicates that the error source controller is a failure If noise exists investigate the noise 6606 Communication error with the transmission processor Communication error between the main microcomputer on the indoor unit board and the mi crocomputer for transmission Note The address attribute appeared ...

Page 267: ...ller MA No ac knowl edgement ACK at RC trans mission to IC 1 When IC unit address is changed or modified during op eration 2 Faulty or disconnected IC trans mission wiring 3 Disconnected IC connector CN2M 4 Indoor unit board failure 5 M NET remote controller failure Turn off the outdoor indoor units for 5 or more minutes and turn them on again If the error is accidental they will run nor mally If ...

Page 268: ...nected units 7102 Address setting error 7105 1 Turn off the power sources of the out door and indoor units for 5 or more min utes and turn them on again If the error is accidental the will run normally If not check the cause 2 2 Check the causes of 1 5 If the cause is found correct it If no cause is found check 3 3 Check the LED displays for trouble shooting on other remote controllers whether an ...

Page 269: ...short circuit of the transmission line for the out door unit on the terminal block for centralized control line con nection TB7 3 When multiple outdoor units are connected and the power source of one of the outdoor units has been shut off 4 The male power supply connec tor of the outdoor unit is not con nected to the female power supply switch connector CN40 5 The male power supply connec tors on ...

Page 270: ...C No ac knowl edgement ACK at SC trans mission to IC 1 Error occurrence on some IC 1 Same cause as that for system with one outdoor unit Same remedy as that for system with one outdoor unit 2 Error occurrence on all IC in the system with one outdoor unit 1 Total capacity error 7100 2 Capacity code error 7101 3 Error in the number of connect ed units 7102 4 Address setting error 7105 5 Disconnectio...

Page 271: ...tem with one outdoor unit Same remedy as that for system with one outdoor unit 2 Error occurrence on all IC in the system with one outdoor unit 1 An error is found by the outdoor unit Total capacity error 7100 Capacity code error 7101 Error in the number of connect ed units 7102 Address setting error 7105 2 Disconnection or short circuit of the transmission line for the out door unit on the termin...

Page 272: ...r failure Check 1 3 on the left 2 Error occurrence on all IC in the system with one outdoor unit 1 An error is found by the outdoor unit Total capacity error 7100 Capacity code error 7101 Error in the number of connect ed units 7102 Address setting error 7105 2 Disconnection or short circuit of the transmission line for the out door unit on the terminal block for centralized control line con necti...

Page 273: ...lock registration of LOSS NAY is made using M NET re mote controller the indoor unit is keeping the memory of the pre vious address Delete unnecessary information of non ex isting address which some indoor units have Use either of the following two methods for deletion 1 Address deletion by M NET remote controller Delete unnecessary address informa tion using the manual setting function of M NET r...

Page 274: ... Decrease of transmission line voltage signal by exceeding ac ceptable range of transmission wiring Farthest 200m 656ft or less Remote controller wiring 12m 39ft or less 4 The transmission line voltage signal is decreased due to erro neous sizing of transmission line Wire diameter 1 25mm2 AWG16 or more 1 When an error occurs at commission ing Turn off the power source of the out door unit indoor u...

Page 275: ...pe noise on MA re mote controller line by following 4 In vestigation method of transmission wave shape noise 7 When no problems are found with items 1 through 6 replace the indoor unit board or the MA remote control ler The following status can be confirmed on LED1 and 2 on the indoor unit board LED1 is lit The main power source of the indoor unit is turned on LED2 is lit MA remote controller line...

Page 276: ... source of the outdoor and the indoor units and change the setting of the model name capacity code 7101 Outdoor unit Indoor unit Capacity code error The model name capac ity code of the connect ed indoor unit connected is inappropriate The model name capacity code set by the switch SW2 is wrong 1 Check the model name capaci ty code of the indoor unit which has the error source address set by the s...

Page 277: ...e power source off 7106 OA processing unit Attribute setting error MA remote controller intended for use with indoor units such as an MA remote controller is connected to the OA process ing unit whose attribute is FU To operate the OA processing unit using remote controllers for indoor units such as MA remote controller set the DipSW3 1 on the OA pro cessing unit to ON 7110 Outdoor unit Unset unit...

Page 278: ...rectify faulty connection 7117 Outdoor unit Model setting error Open detection Disconnected connector dis connected wire or contact fail ure Check for the contact of the connec tor CNTYP1 4 5 on the main board 7130 Outdoor unit Incompatible units The check code will ap pear when the indoor units with different refrig erant systems are con nected The indoor unit that uses only R22 refrigerant is co...

Page 279: ...e connector CNRS3B on the main board and the male connector CNRS1 on the compressor INV board or between the male connec tor CNRS3A on the main board and the male connector CNRS2 on the FAN INV board and check for contact of the connectors Check for contact of the connector CNAC3 on the main board or of the connector CNTR on the FAN INV board 2 Inverter address switch setting error Check the setti...

Page 280: ...nt amount evaluation 2 Overload operation Check operating conditions and op eration status of indoor outdoor units 3 LEV failure on the indoor unit 4 BC controller LEV mal function Cooling only LEV3 Cooling main LEV1 2 3 Heating only or heating main LEV3 Defrost FLEV3 5 BC controller SVM1 and 2 malfunction Cooling only or defrost 6 BC controller SVA mal function Cooling only or cooling main 7 BC c...

Page 281: ...1 Inner pressure drop due to a leakage 2 Low pressure sensor fail ure 3 Short circuited pressure sensor cable due to torn outer rubber 4 A pin on the male connec tor is missing 5 Disconnected wire 6 Failure of the low pressure input circuit on the control ler board Refer to the section on troubleshoot ing the low pressure sensor Error Code Error definition and error detection method Cause Check me...

Page 282: ...34models heating only heating main Heating only or heating main Perform a heating operation and check the operation Cooling LEV on the indoor unit LEV1 2 3 SVM1 2 SVA Heating LEV on the indoor unit LEV3 SVM2 SVB SV4a 4d SV5a 5b Refer to the page on trouble shooting for LEV and solenoid valve 7 Port address setting error Confirm the port address of the indoor unit 8 Closed ball valve Confirm that t...

Page 283: ... is detected during oper ation the first detec tion the outdoor unit stops at once turns to anti restart mode for 3 minutes and restarts after 3 minutes auto matically 2 If the discharge SH 10K 18 F or less is detected again within 30 minutes after first stop of the outdoor unit the second de tection the outdoor unit will make an error stop and the error code 1500 is dis played 3 If discharge SH 1...

Page 284: ...e amount of the return water to the drain pan When a large amount of wa ter returns the gradient of drain pipe may be the rea son Check whether the drain pipe is installed prop erly as the instructions in the installation manual say Furthermore check wheth er the gradient of the unit in stallation is horizontal An error may occur due to re turn water depending on the gradient Target gradient appro...

Page 285: ...nd turn it on again 4103 Reverse phase open phase 1 When turning on the power the operation cannot be started be cause of the open phase of one of the power lines L1 L2 or L3 1 Faulty wiring Check whether the phase of the power supply terminal block TB1 is normal Check the wiring between the pow er supply terminal block TB1 and the main boards CN20 and CN21 2 Main board failure If the above faults...

Page 286: ...the com pressor side insulate the power line and start operation The compressor is faulty if 52C2 normally turns on 4115 Power supply sync signal ab normality The frequency cannot be determined when the power is switched on 1 Power supply error Check the voltage of the power sup ply terminal block TB1 2 A fuse is blown Check the fuses on the main board F01 and F02 3 Faulty wiring Measure voltages ...

Page 287: ...N52C1 on the main board Refer to 3 2 Check whether 52C1 works normally Refer to 4 Or check 52C1 wire connection 3 Check diode stack failure Refer to 5 4 Check the wiring and the connectors of the CNVDC on the FAN INV board Replace FAN INV board when no fault is found for the above 1 4 3 Main board failure Check whether AC208 230 V is ap plied to the male connector CN52C1 on the main board during i...

Page 288: ...ling failure Check the cooling fan operation un der the above operating conditions 7 IPM failure Refer to 9 4 8 2 2 Check for compres sor ground fault or coil error Refer to 9 4 8 2 5 Check the inverter circuit trouble 4240 4245 Overload pro tection When the greater output current Iac than the Imax Arms or THHS of more than 90 C 194 F is detected for 10 min utes in a row 1 Short cycle of the air p...

Page 289: ...104 When IPM short damage or grounding on the load side is detected just be fore starting the inverter In the case of 4250 1 Grounding fault of com pressor 2 Inverter output related Refer to 9 4 8 2 In the case of 4255 1 Grounding fault of fan mo tor 2 FAN INV board failure Refer to 9 4 8 2 6 Refer to 9 4 8 2 7 Overcurrent error due to short circuited motor Detail code No 105 When a short is detec...

Page 290: ...oling oper ation for 3 minutes after the compressor turns on 1 Thermistor failure 2 Connector contact failure 3 Disconnected wire or par tial disconnected ther mistor wire 4 Unattached thermistor or contact failure Check the thermistor resistor 0 C 32 F 15 kohm 10 C 50 F 9 7 kohm 20 C 68 F 6 4 kohm 30 C 86 F 4 3 kohm 40 C 104 F 3 1kohm 5102 Liquid pipe 5103 Gas pipe 5104 Outdoor air temperature 5 ...

Page 291: ... outdoor unit makes an error stop and the error code 5101 5103 5104 5105 5106 or 5107 will appear 5 During 3 minute anti restart mode prelimi nary errors will be dis played on the LED display 6 A short or an open de scribed above is not detected for 10 min utes after the com pressor start during defrost mode or for 3 minutes after defrost mode 1 Thermistor failure Check thermistor resistance 5105 ...

Page 292: ...e intake temperature of the sensor with the LED monitor When the temperature is far different from the actual temperature replace the control board 5112 Bypass outlet TH12 5115 LEV3 outlet TH15 5116 LEV3 inlet TH16 Error Code Error definition and error detection method Cause Check method and remedy 5201 High pressure sensor out door unit 1 If the high pressure sensor detects 0 098MPa 14psi or less...

Page 293: ...or code 5201 or 5203 will be displayed However an er ror stop is not made and backup operation will be started by other sensors 1 High pressure sensor fail ure Refer to the page on the troubleshooting of the high pressure sensor 9 4 1 5203 Intermediate 2 Inner pressure drop due to a leakage 3 Torn wire coating 4 A pin on the male connector is missing or contact failure 5 Disconnected wire 6 High p...

Page 294: ...the inverter circuit trouble ACCT sensor failure Detail code 115 When the effective out put current between 2 Arms and 2 Arms is de tected during inverter op eration 1 Contact failure Check the contact of the connector CNCT2 ACCT on the compressor INV board 2 ACCT sensor failure Replace the ACCT sensor DCCT sensor failure Detail code 116 When the bus current of less than 18 Apeak is de tected at s...

Page 295: ...remote controllers for the outdoor units the indoor units LOSSNAY and the M NET remote controllers have the same address es Example The error code 6600 01 appeared on the display on the remote control ler indicates that an error occurred in No 1 unit Two or more units whose addresses are 01 exist in the same system Search for the unit which has the same ad dress with that of the source of the trou...

Page 296: ...d indoor units connected to different outdoor units or in case of the system connected with MELANS Check method and remedy NO Tightly reconnect the male power supply connector to the female power supply switch connector CN40 YES YES YES YES YES YES NO NO NO NO Is the transmission line work performed while the power is on Check the power source of the indoor unit 208 230V Check the transmission lin...

Page 297: ...e noise on trans mission line by following Investiga tion method of transmission wave shape noise No noise indicates that the error source controller is a failure If noise exists investigate the noise 6606 Communication error with the transmission processor Communication error between the main microcomputer on the indoor unit board and the mi crocomputer for transmission Note The address attribute...

Page 298: ...ng of BC controller 3 Disconnected connector of BC controller CN02 4 Faulty control board of BC control ler Turn off the outdoor indoor units for 5 or more minutes and turn them on again If the error is accidental they will run nor mally If not check the causes 1 4 Indoor unit IC M NET re mote con troller RC MA remote controller MA No ac knowl edgement ACK at RC trans mission to IC 1 When IC unit ...

Page 299: ...at RC trans mission to IC 1 Same causes as 1 5 for sys tem with one outdoor unit 2 Disconnection or short circuit of the transmission line for the out door unit on the terminal block for centralized control line con nection TB7 3 When multiple outdoor units are connected and the power source of one of the outdoor units has been shut off 4 The male power supply connec tor of the outdoor unit is not...

Page 300: ...following causes may be considered Total capacity error 7100 Capacity code error 7101 Error in the number of connected units 7102 Address setting error 7105 1 Turn off the power source of LOSSNAY for 5 or more minutes and turn it on again If the error is accidental it will run normally If not check the cause 2 2 Check the causes of 1 5 If the cause is found correct it If no cause is found check 3 ...

Page 301: ...door units Same remedy as that for grouping of units in a system with multiple outdoor units system controller SC No ac knowl edgement ACK at SC trans mission to IC 1 Error occurrence on some IC 1 Same cause as that for system with one outdoor unit Same remedy as that for system with one outdoor unit 2 Error occurrence on all IC in the system with one outdoor unit 1 Total capacity error 7100 2 Cap...

Page 302: ...nce on some IC 1 Same cause as that for system with one outdoor unit Same remedy as that for system with one outdoor unit 2 Error occurrence on all IC in the system with one outdoor unit 1 An error is found by the outdoor unit Total capacity error 7100 Capacity code error 7101 Error in the number of connect ed units 7102 Address setting error 7105 2 Disconnection or short circuit of the transmissi...

Page 303: ...er 3 M NET remote controller failure Check 1 3 on the left 2 Error occurrence on all IC in the system with one outdoor unit 1 An error is found by the outdoor unit Total capacity error 7100 Capacity code error 7101 Error in the number of connect ed units 7102 Address setting error 7105 2 Disconnection or short circuit of the transmission line for the out door unit on the terminal block for central...

Page 304: ...lock registration of LOSS NAY is made using M NET re mote controller the indoor unit is keeping the memory of the pre vious address Delete unnecessary information of non ex isting address which some indoor units have Use either of the following two methods for deletion 1 Address deletion by M NET remote controller Delete unnecessary address informa tion using the manual setting function of M NET r...

Page 305: ...ved repeatedly due to noise 3 The transmission line voltage signal is decreased due to erro neous sizing of transmission line Farthest 200 m 656ft or less Remote controller wiring 10m 32ft or less 4 The transmission line voltage signal is decreased due to erro neous sizing of transmission line Wire diameter 1 25mm2 AGW16 or less 1 When an error occurs at commission ing Turn off the power sources o...

Page 306: ...ape noise on MA re mote controller line by following 4 In vestigation method of transmission wave shape noise 7 When no problems are found with items 1 through 6 replace the indoor unit board or the MA remote controller The following status can be confirmed on LED1 and 2 on the indoor unit board LED1 is lit The main power source of the indoor unit is turned on LED2 is lit MA remote controller line...

Page 307: ...source of the outdoor and the indoor units and change the setting of the model name capacity code 7101 Outdoor unit Indoor unit Capacity code error The model name capac ity code of the connect ed indoor unit connected is inappropriate The model name capacity code set by the switch SW2 is wrong 1 Check the model name capaci ty code of the indoor unit which has the error source address set by the sw...

Page 308: ...n line for the terminal block for centralized control TB7 is not connected to the terminal block for the indoor outdoor transmis sion line TB3 7105 Outdoor unit BC controller Address setting error Erroneous setting of OC unit address Erroneous setting of BC controller address Erroneous setting of OC unit address The address of outdoor unit is not set to 00 or to 51 100 The address of BC controller...

Page 309: ...troller Sub 1 or 2 50 is not added to the small est indoor unit address which is connected to the BC controller Sub1 or 2 5 In the system to which multiple BC controllers are connected the indoor unit address connected to the BC controller is not set as shown below i The indoor unit address which is connected to the BC controller main ii The indoor unit address which is connected to the BC control...

Page 310: ...1 4 5 on the main board 7130 Outdoor unit Incompatible units The check code will ap pear when the indoor unit or the BC controller with different refrigerant sys tems is connected The indoor unit that uses only R22 refrigerant is connected The wrong unit model or the wrong BC controller model is connected When connecting Mr SLIM A control with M NET the con necting adapter for M NET must be connec...

Page 311: ... v Reversed connection of the wire for the MA remote control ler and the M NET transmission line on the indoor unit 3 The number of the MA remote controllers that are connected to an indoor unit exceeds the allow able range 2 units 4 The length or the diameter of the wire for the MA remote controller are out of specification 5 Short circuit of the wire for the re mote display output of the outdoor...

Page 312: ...t for transmission lines is connected the male power supply connector is connected to the female power supply switch connector CN40 on the out door unit 4 Disconnected M NET transmis sion line on the indoor unit side 5 Disconnected wire between the terminal block for M NET line TB5 of the indoor unit and the in door unit board CN2M or discon nected connector When 2 and 3 apply check code 7102 will...

Page 313: ...nector 6 Incorrect wiring for the MA remote controller Short circuited wire for the MA remote controller Disconnected wire for the MA remote controller No 2 and disconnected line to the terminal block Reversed daisy chain connection between groups Incorrect wiring for the MA remote controller to the terminal block for transmis sion line connection TB5 on the indoor unit The M NET transmission line...

Page 314: ...rmo is OFF Is operation possible Short circuit of the remote controller After turning the power on check whether HO PLEASE WAIT is displayed on the remote controller After more than 20 minutes since turning the power on is LED2 check of the indoor control board still displayed Is the operation by MELANS forbidden or the input from external control equipment allowed SWC ON Is the compulsory thermo ...

Page 315: ...the outdoor unit Disconnected wire for the MA re mote controller or disconnected line to the terminal block The indoor transmission line is connected incorrectly to the transmission terminal block for centralized controller TB7 4 Disconnected transmission line on the remote controller 5 Remote controller failure Check voltage of the transmission terminal block for of the M NET remote controller 1 ...

Page 316: ...t is lit When it is off or cannot be checked Check for the change of LED display by operating dip switch SW1 for self diagnosis Check voltage of the power supply terminal on the indoor unit AC208 230V Check the fuse on the circuit board Melted Check 208 230V circuit for short circuit and ground fault Check the connection of the connector Check the main power of the power supply wire Turn on the po...

Page 317: ... of the outdoor unit 13 In the system to which the power supply unit for transmission lines is connected the male power supply connector is connected to the female power supply switch connector CN40 on the out door unit Check method and remedy Using MELANS When MELANS is used HO display on the remote controller will disappear when the indoor unit and the local remote controller M NET remote contro...

Page 318: ...nit to be confirmed has been cut off 7 The transmission line for central ized control TB7 is disconnect ed 8 When the indoor units connected to different outdoor units are grouped without MELANS the male power supply connector is not connected to the female pow er supply switch connector CN40 for the transmission line for centralized control 9 The male power supply connec tors on 2 or more outdoor...

Page 319: ... Te than Tem causes in sufficient capacity SW1 setting Note Protection works and compressor frequency does not rise even at higher Te than Tem due to high discharge temperature and high pressure At high discharge temperature Refer to 1102 At high pressure Refer to 1302 2 Indoor unit LEV malfunction Insufficient refrigerant flows due to LEV malfunction not enough opening or protection works and com...

Page 320: ...e place where the foreign object is clogging the pipe up stream side and downstream side When the temperature drops significantly the for eign object may clog the pipe Remove the foreign object inside the pipe 8 The indoor unit inlet temperature is excessively Less than 15 C 59 F WB Check the inlet air temperature and for short cycling Change the environment where the indoor unit is used 9 Compres...

Page 321: ...g Protection works and compressor fre quency does not rise even at lower Tc than Tcm due to high discharge temperature and high pressure At high discharge temperature Refer to 1102 At high pressure Refer to 1302 2 Indoor unit LEV malfunction Insufficient refrigerant flows due to LEV malfunction not enough opening Refer to the page of LEV troubleshooting 9 4 6 3 When the higher temperature than the...

Page 322: ...on is likely to start Refer to 2 1 Compressor frequency does not rise sufficiently Refer to the page on refrigerant amount ad justment 11 Compressor failure same as in case of cooling Check the discharge temperature 3 Outdoor unit stops at times during operation The first stop is not considered as an error as the unit turns to anti restart mode for 3 minutes as a preliminary error Error mode i Abn...

Page 323: ...d 2 The sectional voltage level of transmission signal should be as follows Cause Erroneous operation Error code Error code definition Noise interference on the transmission line Signal is transformed and will be misjudged as the signal of another address 6600 Address overlaps Transmission wave pattern is transformed due to the noise creating a new signal 6602 Transmission pro cessor hardware er r...

Page 324: ...atment method of the shield of the transmission line for cen tralized control When group operation of indoor units connected to different outdoor units is performed provide grounding of the shield of the transmission line for centralized control at the point of out door unit and when the system controller is used provide grounding at the point of the system controller so that the ef fect of noise ...

Page 325: ...ween the MA remote controller and the indoor unit is interrupted for 3 minutes in a row MA transmission error 6831 will occur 2 Confirmation of transmission specifications and wave pattern A1 B2 No polarity Across terminal No 1 2 Power supply 8 5V to 12VDC Satisfies the formula 12 msec bit 5 Voltage among terminals must be between DC9 and 12 V TB15 A1 B2 1 2 MA remote controller Transmission wavef...

Page 326: ...ssure sensor has a problem 3 Remove the high pressure sensor from the main board to check the pressure on the self diagnosis LED1 1 When the pressure displayed on self diagnosis LED1 is between 0 and 0 098MPa 14psi the high pressure sensor has a problem 2 When the pressure displayed on self diagnosis LED1 is approximately 4 15MPa 601psi the main board has a problem 4 Remove the high pressure senso...

Page 327: ...lem 2 When the pressure displayed on self diagnosis LED is approximately 1 7MPa 247psi the main board has a prob lem When the outdoor temperature is 30 C 86 F or less the main board has a problem When the outdoor temperature exceeds 30 C 86 F go to 5 4 Remove the low pressure sensor from the main board and short circuit between the No 2 and 3 connectors 63HS to check the pressure with the self dia...

Page 328: ...case of 21S4b 4 way switching valve only for P126 P234 models About this 4 way valve When not powered The electricity runs between the oil separator exit and the heat exchanger in the case of P126 P144 model HEXF between heat exchangers at the front in the case of P168 P234 models and between HEX1b and 2b heat exchanger on the left as you face the front of the unit When powered The electricity run...

Page 329: ... when checking the temperature 6 In case of SV4a 4d P72 P144 models SV4a 4d 5a 5b P168 P234 models heat exchanger capacity control applicable to the PURY series only 1 In the case of cooling only one or more valves among SV4a 4d 5a and 5b turn s on depending on the condition Check the operation by LED display and operation sound of the solenoid valve 2 In the case of heating only all of SV4a 4d 5a...

Page 330: ...ock Refrigerant Circuit Figure P72 P144 models Valve SV4a SV4b SV4c SV4d BV2 ST1 BV1 CV8a CV10a CV9a CV5a CV4a CV2a CV6a CV7a TH6 TH7 TH5 SV4a SV4b SV4c SV4d Orifice ST14 HEXb1 HEXf1 HEXf2 HEXf3 ST15 ST16 ST17 Check Valves Block Solenoid Valves Block CV3a ...

Page 331: ...nt is flowing Do not give an impact from the outside as the outer hull will be deformed leading to the malfunction of the inner valve Tightening torque 150N m Plunger Cap Pin face tool Pin face tool 1 2 3 4 5 6 Solenoid valve block 1 Solenoid valve block 2 Valve BV2 ST1 BV1 CV8a CV10a CV9a CV5a CV4a CV2a CV3a CV6a CV7a TH6 TH7 TH5 SV4a SV4b SV4c SV4d SV5a SV5b CV2b CV5b CV4b CV6b Orifice ST14 HEXb...

Page 332: ... below the inverter output will appear 100 indicates the full speed and 0 indicates the stopping As the revolution of the fan changes under control at the interphase or when the indoor unit operation capacity is low the revolution of the fan may change When the fan does not work or an abnormal vibration occurs the FAN board has a problem or the fan motor runs under open phase or opposite phase The...

Page 333: ...as High pressure liquid High pressure gas liquid BV2 ST1 BV1 CV8a CV10a CV9a CV5a CV4a CV2a CV6a CV7a TH6 TH7 TH5 SV4a SV4b SV4c SV4d Orifice ST14 HEXb1 HEXf1 HEXf2 HEXf3 ST15 ST16 ST17 Check Valves Block Solenoid Valves Block CV3a BV2 ST1 BV1 CV8a CV10a CV9a CV5a CV4a CV2a CV3a CV6a CV7a TH6 TH7 TH5 SV4a SV4b SV4c SV4d SV5a SV5b CV2b CV5b CV4b CV6b Orifice ST14 HEXb1 HEXf1 HEXf2 HEXf3 ST15 ST16 S...

Page 334: ...FF OFF ON 2 ON ON OFF OFF 3 OFF ON ON OFF 3 OFF OFF ON ON Pulse signal output and valve operation Output pulses change in the following orders when the Valve is closed 1 2 3 4 1 Valve is open 4 3 2 1 4 1 When the LEV opening angle does not change all the output phases will be off 2 When the output is open phase or remains ON the motor cannot run smoothly and rattles and vibrates When the power is ...

Page 335: ... is open 8 7 6 5 4 3 2 1 8 1 When the LEV opening angle does not change all the output phases will be off 2 When the output is open phase or remains ON the motor cannot run smoothly and rattles and vibrates Output phase number Output state When the power is turned on the valve closing signal of 520 pulses will be output from the indoor board to LEV to fix the valve position It must be fixed at poi...

Page 336: ...ormal if resistance is 150 10 Replace the LEV coils Indoor Measure resistance between the coils red white red orange brown yellow brown blue using a tester They are normal if resistance is 46 within 3 Replace the LEV coils Outdoor Incomple sealing leak from the valve When checking the refrigerant leak from the in door LEV run the target indoor unit in the fan mode and the other indoor units in the...

Page 337: ...hout the body gripped undue force will be applied and the pipe will be bent Installing the coils Fix the body tightly at the bottom Part A in the figure so that the body will not move then insert the coils from the top and insert the coil stopper securely in the pipe on the body Hold the body when pulling out the coils to prevent so that the pipe will not be bent If the coils are pushed without th...

Page 338: ...ntact of the pressure sensor connector in trouble is not faulty OK OK Check that the difference between each detected pressure is 0 098MPa 14psi or less OK Both the board and the pressure sensor are normal OK Is Pd P1 P3 Ps Remove the pressure sensor connector from the board and check the pressure OK OK Check whether the refrigerant pipe and the transmission line are connected correctly between th...

Page 339: ...e applied pressure sensor is disconnected from the board Cooling only Heating only Heating main Non cooling Indoor heating SC small Heating indoor Thermo ON Especially noise is large Indoor heating SC small Heating indoor Thermo ON Especially noise is large Cooling main Symptoms SC11 large SC16 small PHM large SC11 large SC16 small PHM large Non cooling Normal SC11 large SC16 small PHM large Measu...

Page 340: ... the temperature measured by a commercially available thermometer and check whether there is no difference between them Insert the connector of the thermistor in trouble into the board check the sensor inlet temperature on the LED monitor and check the temperature difference START Normal Troubleshooting instructions for thermistor Replace the thermistor No temperature difference No temperature dif...

Page 341: ... below When the result is 10 it is normal Note4 Check the self diagnosis switch Outdoor control board SW1 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON TH22 TH25 TH22 TH25 Liquid inlet temperature Bypass outlet temperature Bypass outlet temperature Bypas...

Page 342: ...ly open Check that LEV1 is fully open Check that SVA and SVC are ON Check that SVA and SVC are OFF Cooling or heating operation Note 2 Heating operation Check whether LEV3 is controlling superheat Check LEV1 Check LEV3 Check SVA and SVC Check SVB LEV1 is fully open Check whether LEV 3 is controlled by the value of the differential pressure LEV1 is fully open Note 3 Note 2 Note 3 YES NO Cooling ope...

Page 343: ...ontroller sound Non cooling and non heat ing SH12 small SC11 small SH16 large but branch pipe SC small BC controller sound PHM large Indoor heating SC small PHM large Non cooling Indoor heating SC small PHM large Part Malfunction mode Operation mode Content Standards of judgment on unit stable operation NU G GA Main LEV1 Inclined to close Heating only Heating main Cooling main Difference between h...

Page 344: ...10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON LEV1 opening LEV3 opening LEV3a opening BC controller bypass outlet superheat BC controller intermediate part subcool SH12 LEV2 opening LEV3a opening SC16 BC controller liquid side subcool SC11 Measurement data SW1 setting value Symbol NU G GA Standard main NU GB Sub 1 NU GB Sub 2 ...

Page 345: ...eck the colors of the lead wires visually Intermediate connector Control board Check that no refrigerant leaks from LEV Pull out the connector from the board and check that the electricity runs with a tester The wiring side of CN05 and 07 Among 1 3 and 5 and among 2 4 and 6 Check the resistance between each coil with a tester between red and white red and orange brown and yellow and brown and blue...

Page 346: ... downstream pipes of the solenoid valve When the solenoid valve is ON There is no temperature difference When the solenoid valve is OFF There is a temperature difference OK Remove the solenoid valve coil and check that there is a suction force There is a suction force Note 2 Note 2 Note 2 Measure the temperature at the upstream and downstream pipes of the solenoid valve and compare them There is n...

Page 347: ...nd downstream pipes and of SVA 4 BC controller transformer Before measuring the resistance pull out the connector Mode Cooling Heating Stopped Defrost Fan Port SVA ON OFF OFF OFF OFF SVB OFF ON OFF OFF OFF SVC ON OFF OFF OFF ON Operation mode Cooling only Cooling main Heating only Heating main Defrost Stopped SVM1 ON Pressure differ ential control OFF or ON OFF OFF ON OFF SVM2 OFF OFF Pressure dif...

Page 348: ...nverter frequency on the LED monitor and proceed to 2 3 if the compressor is in operation 5 The compressor vibrates violently at all times or makes an abnor mal sound See 2 3 6 Only the fan motor does not operate Check the inverter frequency on the LED monitor and proceed to 2 6 7 if the fan motor is in operation 7 The fan motor shakes violently at all times or makes an abnormal sound Check the in...

Page 349: ...board error de tection circuit Perform the following Remove the connector CNDR2 on the compressor INV board Operate the outdoor unit after above steps Check the error status The compressor does not run because CNDR2 which out puts the IPM drive signal has been disconnected 1 IPM overcurrent breaker trip 4250 Detail code No 101 102 103 104 105 106 and 107 Replace the compressor INV board 2 Logic er...

Page 350: ... the voltage imbalance across all wiring is great er than the larger of the values represented by 5 or 5V 3 No voltage imbalance across all wiring See item 2 Proceed to item 5 however if there is no problem in section 2 Replace the compressor if there is no problem in section 5 4 Check whether the inverter is damaged Per form this check if an error oc curs during op eration Turn on the outdoor uni...

Page 351: ...e im balance or error reoccurrence Replace the G A board In the case of an output voltage imbalance or error reoccurrence after replace ment Replace the INV board 6 Check the fan motor ground fault or the winding Remove the wire for the outdoor fan motor and check the fan motor megger and the winding resistance 1 Fan motor megger failure Failure when the megger is 1Mohm or less Replace the fan mot...

Page 352: ...PM Rush current protection resistor Electromagnetic relay DC reactor Noise filter large current relay 2 Turn on the power again and check again 1 Main power breaker trip 2 No remote control display 3 Turn on the outdoor unit and check that it operates normally 1 Operates normally without trip ping the main breaker a The wiring may have been short circuited Search for the wire that short circuited ...

Page 353: ...w A Short circuit is not allowed Row B to Row E Measure resistance between terminals on each row Installation direction Test button Row A Row B Row C Row D Row E The coil is driven when AC 208 230V is applied Note that the coil is not driven at DC 12V which is different from the conventional relays The resistance of row A cannot be measured with a tester Check that it is not short circuited Check ...

Page 354: ...not allowed Tester restriction Use the tester whose internal electrical power source is 1 5V or greater Use the dry battery powered tester The accurate diode specific resistance cannot be measured with the button battery powered card tester as the ap plied voltage is low Use a low range tester if possible A more accurate resistance can be measured Judgment value reference Black P N U V W Red P 5 2...

Page 355: ...ery small If the output wire from the IPM to the compressor is connected incorrectly the compressor will be damaged Perform wiring carefully in order of color shown in the wiring diagram below 2 Coat the radiation surface of the IPM and diode stack evenly with the grease that is provided with the service parts Apply a thin layer of grease to the entire surface of the back of the IPM and diode stac...

Page 356: ...sion block DC 24 30 V AC 208 230 V TB1 TB3 Terminal block for transmission line for centralized control DC 24 30 V TB7 52C1 Solenoid valve 4 way valve Terminal block for power source Fuse 3 A Fuse 6 A Compressor G A board INV board IPM drive circuit DC DC converter 7 V Power supply 30 V Power supply Microcomputer Microcomputer 52C1 Relay LEV Drive circuit CN40 Main board Cooling fan Surge protecti...

Page 357: ...pply 15 V Power supply 12 V Power supply 5 V Power supply Power supply for centralized control TB7 side Power supply for indoor transmission line TB3 side Indoor outdoor transmission block DC 24 30 V TB3 Terminal block for transmission line for centralized control DC 24 30 V TB7 Main board Microcomputer 5 V Power supply Indoor unit M NET remote controller MA remote controller MA remote controllers...

Page 358: ...heck if the connector CNL1 and CNL2 on the INV board are not disconnected Check if the indoor outdoor transmission line is not short circuited and repair the problem Check whether the transmission line is disconnected check for contact failure and repair the problem Connected Check the wiring between connectors CNS1 and TB3 Check if the connector CNS1 is not disconnected Disconnected Connect it Co...

Page 359: ... indoor units to the cooling mode iii Check that all the indoor units are performing a cooling operation In case of PUHY series 2 Check the values of Tc and TH7 To display the values on the LED screen use the self diagnosis switch SW1 on the outdoor unit main board i When Tc TH7 is 10K 18 F or more See the next item 4 ii When Tc TH7 is less than 10K 18 F After the compressor stops collect the refr...

Page 360: ...ected 5 Repair the leak 6 After repairing the leak perform evacuation of the extension pipe for the indoor unit and open the ball valves BV1 and BV2 to adjust refrigerant 4 Leak spot In the case of outdoor unit Heating season 1 Collect the refrigerant in the entire system outdoor unit extended pipe and indoor unit Do not discharge refriger ant into the atmosphere when it is collected 2 Repair the ...

Page 361: ...mpressor 13 Braze the discharge pipe and the suction pipe 14 Attach the oil balance pipe to both compressors Attach the oil balance pipe to both compressors After replacing the dryer do not leave the refrigerant circuit open for long time Note When replacing the compressor and when the equal oil pipe is damaged or irreparably deformed after replacing the compressor heat the junction of the equal o...

Page 362: ... and collect the liquid inside the accumulator into the cylinder Note Allow some capacity when collecting the refrigerant so that the recovery cylinder will not overflow Use several cylinders when collecting large amount of refrigerant 4 After collecting the refrigerant close the valve of the recovery cylinder and remove the connecting pipe hose Note When the check joint and the connecting pipe ho...

Page 363: ...ocedure Explanatory figure 1 To check the inside of the control box remove 2 lock nuts on the control box cover 1 Check the terminal connection of the power wire or of the transmission line 2 Check the transformer 3 Check the address switch 2 When the control board is replaced the followings must be noted 1 Check that the board type is NU G NU GA or NU GB 2 Check that the wire or the connector is ...

Page 364: ...he lead wire of the temperature sensor securely on the control board Work procedure Explanatory figure 1 Remove the service panel 1 For the pressure sensors PS1 and PS3 refer to 1 1 2 2 Remove the pressure sensor connector in trouble from the control board and insulate the connector 1 Liquid side pressure sensor CNP1 2 Intermediate part pressure sensor CNP3 3 Attach a new pressure sensor to the pl...

Page 365: ...procedure Explanatory figure 1 Remove the service panel Refer to 1 1 2 3 2 Remove the connector of the solenoid valve in trouble 3 Remove the solenoid valve coil 1 For the solenoid valve coil of SVA SVB or SVM1 2 can be serviced from the inspection door is possible For SVC however remove the rear panel 4 machine screws to replace the coil if enough service space can be secured at the rear Only NU ...

Page 366: ... 357 IX Troubleshooting ...

Page 367: ... 358 ...

Page 368: ... 359 X LED monitor display on the outdoor unit board 1 How to read the LED on the service monitor 361 ...

Page 369: ... 360 ...

Page 370: ... a value in SI unit Value in SI unit MPa Displayed value kg cm2 x 0 098 Use the following conversion formula to convert the displayed value into a value in SI unit Value in SI unit MPa Displayed value kg cm2 x 0 098 By setting DIP SW5 3 on the outdoor unit controller board to ON values can be displayed in English measurement units 2 Flag display Each set of 2 lines in vertical alignment indicates ...

Page 371: ... turned off and then on again the count will resume from the time before the power was turned off Thus the time that differs the actual time will be displayed This also applies when a power failure occurs The system controller such as G50 adjusts the time once a day When the system controller is connected the time will be automatically updated to the correct current time after the time set by the ...

Page 372: ... 21S4b CH11 CH12 Items marked with are only applicable to the PURY series 4 0010000000 Relay out put display 3 SV1 SV2 SV3 SV4a SV4b SV4c 5 1010000000 Relay out put display 4 SV5a SV5b SV4d 52F 6 0110000000 7 1110000000 Special con trol Retry opera tion Emer gency opera tion 8 0001000000 9 1001000000 Communica tion demand capacity 0000 to 9999 If not demanded controlled appears on the display 10 0...

Page 373: ...o 17 Unit No 18 Unit No 19 Unit No 20 Unit No 21 Unit No 22 Unit No 23 Unit No 24 26 0101100000 Unit No 25 Unit No 26 Unit No 27 Unit No 28 Unit No 29 Unit No 30 Unit No 31 Unit No 32 27 1101100000 28 0011100000 29 1011100000 30 0111100000 Indoor unit thermostat Unit No 1 Unit No 2 Unit No 3 Unit No 4 Unit No 5 Unit No 6 Unit No 7 Unit No 8 Lit when thermo stat is on Unlit when ther mostat is off ...

Page 374: ... TH8 99 9 to 999 9 Items marked with are only applicable to the PUHY series 52 0010110000 53 1010110000 54 0110110000 55 1110110000 56 0001110000 57 1001110000 58 0101110000 59 1101110000 60 0011110000 THHS1 99 9 to 999 9 The unit is C or F 1 61 1011110000 62 0111110000 63 1111110000 THHS5 99 9 to 999 9 64 0000001000 65 1000001000 66 0100001000 67 1100001000 68 0010001000 69 1010001000 70 01100010...

Page 375: ...e 99 9 to 999 9 85 1010101000 86 0110101000 87 1110101000 All tempo rary frequen cies 0000 to 9999 Control data Hz 88 0001101000 Control fre quency of COMP 1 0000 to 9999 89 0001101000 Control fre quency of COMP 2 0000 to 9999 90 0101101000 91 1101101000 Operation frequency of COMP 1 0000 to 9999 Operation fre quency of com pressor Hz 2 92 0011101000 93 1011101000 94 0111101000 AK1 0000 to 9999 Co...

Page 376: ...nit is h 118 0110111000 COMP1 Op eration time Lower 4 dig its 0000 to 9999 119 1110111000 COMP2 Op eration time Upper 4 dig its 0000 to 9999 120 0001111000 COMP2 Op eration time Lower 4 dig its 0000 to 9999 121 1001111000 122 0101111000 123 1101111000 COMP 1 number of start stop events Upper 4 dig its 0000 to 9999 Count up at start up The unit is Time 124 0011111000 COMP 1 number of start stop eve...

Page 377: ...VC 13 SVA 14 SVB 14 SVC 14 140 0011000100 SVA 15 SVB 15 SVC 15 SVA 16 SVB 16 SVC 16 141 1011000100 Relay out put display BC Sub control ler 1 SVA1 SVB1 SVC1 SVA2 SVB2 SVC2 142 0111000100 SVA3 SVB3 SVC3 SVA4 SVB4 SVC4 143 1111000100 SVA5 SVB5 SVC5 SVA6 SVB6 SVC6 144 0000100100 SVA7 SVB7 SVC7 SVA8 SVB8 SVC8 145 1000100100 Relay out put display BC Sub control ler 2 SVA1 SVB1 SVC1 SVA2 SVB2 SVC2 146 0...

Page 378: ...ntrol ler Main controller or standard controller SH12 99 9 to 999 9 157 1011100100 BC control ler Main controller or standard controller SH13 99 9 to 999 9 158 0111100100 BC control ler Main controller or standard controller SC16 99 9 to 999 9 159 1111100100 BC control ler Main controller or standard controller LEV1 0000 to 2000 LEV 1 opening Fully open 2000 160 0000010100 BC control ler Main cont...

Page 379: ...111010100 176 0000110100 177 1000110100 178 0100110100 Error history 1 0000 to 9999 Address and er ror codes high lighted If no errors are detected appears on the display 179 1100110100 Error details of inverter Error details of inverter 0001 0120 180 0010110100 Error history 2 0000 to 9999 181 1010110100 Error details of inverter Error details of inverter 0001 0120 182 0110110100 Error history 3 ...

Page 380: ...door unit operation status BC op eration com mand Warm up mode 3 min utes re start mode Com pressor in oper ation Prelimi nary er ror Error 3 min utes re start after in stanta neous power failure Prelimi narylow pres sure er ror Items marked with are only applicable to the PURY series No 201 through No 299 show data to be col lected immedi ately before abnormal stop or preliminary error 202 010100...

Page 381: ...14 0110101100 Relay out put display 4 Lighting SV5a SV5b SV4d 52F 215 1110101100 216 0001101100 TH11 99 9 to 999 9 The unit is C or F 1 217 1001101100 TH12 99 9 to 999 9 218 0101101100 219 1101101100 TH5 99 9 to 999 9 220 0011101100 TH6 99 9 to 999 9 221 1011101100 TH7 99 9 to 999 9 222 0111101100 TH8 99 9 to 999 9 Item No 222 is applicable only to the PUHY se ries 223 1111101100 224 0000011100 22...

Page 382: ...jh 0000 to 9999 250 0101111100 Qjc 0000 to 9999 251 1101111100 Qjh 0000 to 9999 252 0011111100 Target Tc 99 9 to 999 9 The unit is C or F 1 253 1011111100 Target Te 99 9 to 999 9 254 0111111100 Tc 99 9 to 999 9 255 1111111100 Te 99 9 to 999 9 256 0000000010 257 1000000010 258 0100000010 All tempo rary frequen cies 0000 to 9999 Control data Hz 259 1100000010 Control fre quency of COMP 1 0000 to 999...

Page 383: ...10 282 0101100010 COMP 1 bus voltage 99 9 to 999 9 The unit is V 283 1101100010 284 0011100010 285 1011100010 286 0111100010 287 1111100010 288 0000010010 COMP 1 Op eration time Upper 4 dig its 0000 to 9999 The unit is h 289 1000010010 COMP 1 Op eration time Lower 4 dig its 0000 to 9999 290 0100010010 COMP 2 Op eration time Upper 4 dig its 0000 to 9999 291 1100010010 COMP 2 Op eration time Lower 4...

Page 384: ...dig its 0000 to 9999 298 0101010010 299 1101010010 300 0011010010 301 1011010010 302 0111010010 303 1111010010 304 0000110010 305 1000110010 306 0100110010 307 1100110010 308 0010110010 309 1010110010 310 0110110010 311 1110110010 312 0001110010 313 1001110010 314 0101110010 315 1101110010 316 0011110010 317 1011110010 318 0111110010 319 1111110010 320 0000001010 BC control ler Main controller or ...

Page 385: ... 1010001010 BC control ler Main controller or standard controller 63HS3 99 9 to 999 9 326 0110001010 327 1110001010 328 0001001010 329 1001001010 330 0101001010 BC control ler Main controller or standard controller LEV1 0000 to 2000 LEV 1 opening Fully open 2000 331 1101001010 BC control ler Main controller or standard controller LEV3 0000 to 2000 LEV 3 opening Fully open 2000 332 0011001010 BC co...

Page 386: ...00 to 9999 Displayed alter nately every 5 seconds 352 0000011010 IC2 Address ca pacity code 0000 to 9999 0000 to 9999 353 1000011010 IC3 Address ca pacity code 0000 to 9999 0000 to 9999 354 0100011010 IC4 Address ca pacity code 0000 to 9999 0000 to 9999 355 1100011010 IC5 Address ca pacity code 0000 to 9999 0000 to 9999 356 0010011010 IC6 Address ca pacity code 0000 to 9999 0000 to 9999 357 101001...

Page 387: ...code 0000 to 9999 0000 to 9999 370 0100111010 IC20 Address ca pacity code 0000 to 9999 0000 to 9999 371 1100111010 IC21 Address ca pacity code 0000 to 9999 0000 to 9999 372 0010111010 IC22 Address ca pacity code 0000 to 9999 0000 to 9999 373 1010111010 IC23 Address ca pacity code 0000 to 9999 0000 to 9999 374 0110111010 IC24 Address ca pacity code 0000 to 9999 0000 to 9999 375 1110111010 IC25 Addr...

Page 388: ...96 0011000110 397 1011000110 398 0111000110 399 1111000110 400 0000100110 401 1000100110 402 0100100110 403 1100100110 404 0010100110 405 1010100110 406 0110100110 407 1110100110 408 0001100110 IC1 Suction temperature 99 9 to 999 9 The unit is C or F 1 409 1001100110 IC2 Suction temperature 99 9 to 999 9 410 0101100110 IC3 Suction temperature 99 9 to 999 9 411 1101100110 IC4 Suction temperature 99...

Page 389: ...ature 99 9 to 999 9 426 0101010110 IC19Suction temperature 99 9 to 999 9 427 1101010110 IC20Suction temperature 99 9 to 999 9 428 0011010110 IC21Suction temperature 99 9 to 999 9 429 1011010110 IC22Suction temperature 99 9 to 999 9 430 0111010110 IC23Suction temperature 99 9 to 999 9 431 1111010110 IC24Suction temperature 99 9 to 999 9 432 0000110110 IC25Suction temperature 99 9 to 999 9 433 10001...

Page 390: ...pe temperature 99 9 to 999 9 460 0011001110 IC3 Liquid pipe temperature 99 9 to 999 9 461 1011001110 IC4 Liquid pipe temperature 99 9 to 999 9 462 0111001110 IC5 Liquid pipe temperature 99 9 to 999 9 463 1111001110 IC6 Liquid pipe temperature 99 9 to 999 9 464 0000101110 IC7 Liquid pipe temperature 99 9 to 999 9 465 1000101110 IC8 Liquid pipe temperature 99 9 to 999 9 466 0100101110 IC9 Liquid pip...

Page 391: ...11101110 IC20 Liquid pipe temperature 99 9 to 999 9 478 0111101110 IC21 Liquid pipe temperature 99 9 to 999 9 479 1111101110 IC22 Liquid pipe temperature 99 9 to 999 9 480 0000011110 IC23 Liquid pipe temperature 99 9 to 999 9 481 1000011110 IC24 Liquid pipe temperature 99 9 to 999 9 482 0100011110 IC25 Liquid pipe temperature 99 9 to 999 9 483 1100011110 IC26 Liquid pipe temperature 99 9 to 999 9 ...

Page 392: ... Self address Alternate display of self address and unit model 513 1000000001 IC FU ad dress Count up display of number of connected units 514 0100000001 RC address Count up display of number of connected units 515 1100000001 BC TU ad dress Count up display of number of connected units 516 0010000001 OS address Count up display of number of connected units 517 1010000001 Main board S W version etc...

Page 393: ...9 531 1100100001 IC9 Gas pipe temperature 99 9 to 999 9 532 0010100001 IC10 Gas pipe temperature 99 9 to 999 9 533 1010100001 IC11 Gas pipe temperature 99 9 to 999 9 534 0110100001 IC12 Gas pipe temperature 99 9 to 999 9 535 1110100001 IC13 Gas pipe temperature 99 9 to 999 9 536 0001100001 IC14 Gas pipe temperature 99 9 to 999 9 537 1001100001 IC15 Gas pipe temperature 99 9 to 999 9 538 0101100001...

Page 394: ...010010001 IC26 Gas pipe temperature 99 9 to 999 9 549 1010010001 IC27 Gas pipe temperature 99 9 to 999 9 550 0110010001 IC28 Gas pipe temperature 99 9 to 999 9 551 1110010001 IC29 Gas pipe temperature 99 9 to 999 9 552 0001010001 IC30 Gas pipe temperature 99 9 to 999 9 553 1001010001 IC31 Gas pipe temperature 99 9 to 999 9 554 0101010001 IC32 Gas pipe temperature 99 9 to 999 9 555 1101010001 556 0...

Page 395: ...01001001 IC12SH 99 9 to 999 9 585 1001001001 IC13SH 99 9 to 999 9 586 0101001001 IC14SH 99 9 to 999 9 587 1101001001 IC15SH 99 9 to 999 9 588 0011001001 IC16SH 99 9 to 999 9 589 1011001001 IC17SH 99 9 to 999 9 590 0111001001 IC18SH 99 9 to 999 9 591 1111001001 IC19SH 99 9 to 999 9 592 0000101001 IC20SH 99 9 to 999 9 593 1000101001 IC21SH 99 9 to 999 9 594 0100101001 IC22SH 99 9 to 999 9 595 110010...

Page 396: ... to 999 9 628 0010111001 IC6SC 99 9 to 999 9 629 1010111001 IC7SC 99 9 to 999 9 630 0110111001 IC8SC 99 9 to 999 9 631 1110111001 IC9SC 99 9 to 999 9 632 0001111001 IC10SC 99 9 to 999 9 633 1001111001 IC11SC 99 9 to 999 9 634 0101111001 IC12SC 99 9 to 999 9 635 1101111001 IC13SC 99 9 to 999 9 636 0011111001 IC14SC 99 9 to 999 9 637 1011111001 IC15SC 99 9 to 999 9 638 0111111001 IC16SC 99 9 to 999 ...

Page 397: ...00101 IC32SC 99 9 to 999 9 655 1111000101 656 0000100101 657 1000100101 658 0100100101 659 1100100101 660 0010100101 661 1010100101 662 0110100101 663 1110100101 664 0001100101 665 1001100101 666 0101100101 667 1101100101 668 0011100101 669 1011100101 670 0111100101 671 1111100101 672 0000010101 673 1000010101 674 0100010101 675 1100010101 676 0010010101 Compressor INV board S W version 0 00 to 99...

Page 398: ... 2 00 00 to 99 12 1 to 31 Year and month and date alter nate display 698 0101110101 Time of error detection 5 00 00 to 23 59 Hour minute 699 1101110101 Time of error detection 5 2 00 00 to 99 12 1 to 31 Year and month and date alter nate display 700 0011110101 Time of error detection 6 00 00 to 23 59 Hour minute 701 1011110101 Time of error detection 6 2 00 00 to 99 12 1 to 31 Year and month and d...

Page 399: ...000101101 IC7 LEV opening 0000 to 2000 721 1000101101 IC8 LEV opening 0000 to 2000 722 0100101101 IC9 LEV opening 0000 to 2000 723 1100101101 IC10 LEV opening 0000 to 2000 724 0010101101 IC11 LEV opening 0000 to 2000 725 1010101101 IC12 LEV opening 0000 to 2000 726 0110101101 IC13 LEV opening 0000 to 2000 727 1110101101 IC14 LEV opening 0000 to 2000 728 0001101101 IC15 LEV opening 0000 to 2000 729...

Page 400: ...000 745 1001011101 IC32 LEV opening 0000 to 2000 746 0101011101 747 1101011101 748 0011011101 749 1011011101 750 0111011101 751 1111011101 752 0000111101 753 1000111101 754 0100111101 755 1100111101 756 0010111101 757 1010111101 758 0110111101 759 1110111101 760 0001111101 761 1001111101 762 0101111101 763 1101111101 764 0011111101 IC1 Opera tion mode 0000 Stop 0001 Ventilation 0002 Cooling 0003 H...

Page 401: ...1 IC16 Opera tion mode 780 0011000011 IC17 Opera tion mode 781 1011000011 IC18 Opera tion mode 782 0111000011 IC19 Opera tion mode 783 1111000011 IC20 Opera tion mode 784 0000100011 IC21 Opera tion mode 785 1000100011 IC22 Opera tion mode 786 0100100011 IC23 Opera tion mode 787 1100100011 IC24 Opera tion mode 788 0010100011 IC25 Opera tion mode 789 1010100011 IC26 Opera tion mode 790 0110100011 IC...

Page 402: ...11 IC7 filter 0000 to 9999 821 1010101011 IC8 filter 0000 to 9999 822 0110101011 IC9 filter 0000 to 9999 823 1110101011 IC10 filter 0000 to 9999 824 0001101011 IC11 filter 0000 to 9999 825 1001101011 IC12 filter 0000 to 9999 826 0101101011 IC13 filter 0000 to 9999 827 1101101011 IC14 filter 0000 to 9999 828 0011101011 IC15 filter 0000 to 9999 829 1011101011 IC16 filter 0000 to 9999 830 0111101011 ...

Page 403: ...999 846 0111001001 847 1111001011 848 0000101011 849 1000101011 850 0100101011 851 1100101011 852 0010101011 853 1010101011 854 0110101011 855 1110101011 856 0001101011 857 1001101011 858 0101101011 859 1101101011 860 0011101011 861 1011101011 862 0111101011 863 1111101011 864 0000011011 865 1000011011 866 0100011011 867 1100011011 868 0010011011 869 1010011011 870 0110011011 871 1110011011 U phas...

Page 404: ...to 254 882 0100111011 883 1100111011 884 0010111011 Fan INV board Reset counter 0 to 254 885 1010111011 886 0110111011 887 1110111011 888 0001111011 889 1001111011 890 0101111011 891 1101111011 892 0011111011 893 1011111011 894 0111111011 895 1111111011 896 0000000111 897 1000000111 898 0100000111 899 1100000111 900 0010000111 901 1010000111 902 0110000111 903 1110000111 904 0001000111 905 1001000...

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