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72

10

ELECTRICAL WIRING

10-1. OVERVIEW OF POWER WIRING

10-2. WIRE DIAMETER AND MAIN POWER SWITCH CAPACITY

10-2-1. Wiring diagram for main power supply

10-2-2. Power supply wire diameter and capacity

This chapter provides an introduction to electrical wiring for the MULTI-S series, together with notes concerning power wiring,
wiring for control (transmission wires and remote controller wires), and the frequency converter.

(1) Please refer to your electric power company about the indoor wiring specifications for the power wire diameter

and capacity of protective devices (switches and leakage of breakers).

(2) Taking into consideration voltage drops caused by the length of the wires when operating devices installed

downstream, determine the specifications of wires able to handle the maximum current or voltage. In addition,
protective devices must be able to protect against current leakage or excessive current.

(3) It is generally necessary to include leakage breakers when installing wiring for the CITY MULTI-S series.

Protective switches (excessive current protection) along main or branch lines should typically consist of fuse-less
breakers (ELB).

(4) Please perform grounding.
(5) It is suggested that you consult with your electric power company concerning restrictions on electrical specifications.

Outdoor unit

Grounded

Circuit breaker

Power supply
single phase
220-230-240V, 50Hz

Outdoor unit

Indoor unit

Grounded

Grounded

Junction box

Circuit breaker

N

Power supply
(3phase 380-400-415V, 50Hz)

• PUMY-P125VMA

• PUMY-P125YMA
PUMY-P125YMA

1

Circuit breaker

Power supply
single phase
50Hz 220-230-240V

Interrupting current

Grounded

Minimum wire cross section area(mm

2

)

Breaker

Model

Branch line

Main line

PUMY-P125VMA

PUMY-P125YMA
PUMY-P125YMA

1

Performance characteristic

25A,30mA for 0.1 sec. or less

Outdoor unit

Interrupting current

15A

Grounded

[

1.6

Minimum wire cross section area(mm)

Breaker

Model

Branch line

–

Main line

[

1.6

All Models

Performance characteristic

15A, 30mA for 0.1 sec. or less

Indoor unit

5.5(6)

2.5

5.5(6)

2.5

—

—

32A

25A

32A,30mA for 0.1 sec. or less

OC272A--3.qxp 03.9.4 11:10 AM Page 72

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Содержание PUMY-P125VMA

Страница 1: ...EM CONSTRUCTION 22 9 TROUBLESHOOTING 34 10 ELECTRICAL WIRING 72 11 REFRIGERANT PIPING TASKS 75 12 DISASSEMBLY 80 13 PARTS LIST 86 Outdoor unit Model name Service Ref PUMY P125VMA PUMY P125VMA PUMY P125YMA PUMY P125YMA PUMY P125YMA1 No OC272 REVISED EDITION A 2003 SPLIT TYPE HEAT PMUP AIR CONDITIONERS R407C Revision PUMY P125VMA and PUMY P125YMA1 are added in REVISED EDITION A Please void OC272 OUT...

Страница 2: ... operation switching logic for the outdoor output connector CN3D PUMY P125YMA CN3D 1 2 OPEN Heating CLOSE Cooling PUMY P125YMA1 CN3D 1 2 OPEN Cooling CLOSE Heating 3 Difference of the role of SW5 1 function selection switch PUMY P125YMA Fix the operation frequency ON Fix OFF Normal PUMY P125YMA1 Auto Change Over from Remote Controller ON Enable OFF Disable ...

Страница 3: ...rant to fill the system If gas refrigerant is used to fill the system the composition of the refrigerant in the cylinder will change and performance may drop Do not use a refrigerant other than R407C If another refrigerant R22 etc is used the chlorine in the refrigerant may cause the refrigerant oil to deteriorate Use a vacuum pump with a service port The vacuum pump oil may flow back into the ref...

Страница 4: ...ve tools for R407C refrigerant No Tool name Specifications 1 Gauge manifold Only for R407C Use the existing fitting SPECIFICATIONS UNF 7 16 Use high tension side pressure of 3 43MPa G or over 2 Charge hose Only for R407C Use pressure performance of 5 10MPa G or over 3 Electronic scale 4 Gas leak detector Use the detector for R407C 5 Adapter for reverse flow check Attach on vacuum pump 6 Refrigeran...

Страница 5: ...MH A VMM A 100VMH A VMM A 125VMH A VMM A 20VM A 25VM A 32VM A 40VM A 50VM A 63VM A 71VM A 80VM A 100VM A 125VM A 20VAM A 25VAM A 32VGM A 40VGM A 50VGM A 63VFM A 100VFM A 20VLEM A 25VLEM A 32VLEM A 40VLEM A 50VLEM A 63VLEM A 20VLRM A 25VLRM A 32VLRM A 40VLRM A 50VLRM A 63VLRM A 40VGM A 63VGM A 100VGM A 125VGM A PLFY P PLFY P PEFY P PDFY P PKFY P PCFY P PFFY P PFFY P Capacity Model Cassette Ceiling ...

Страница 6: ...0V 60Hz Power supply V Single phase 220 230 240V 50Hz Y 3 phase 380 400 415V 50Hz 380V 60Hz L Ceiling cassette K Wall mounted type E Hidden skylight type C Ceiling suspended type M Ceiling cassette type F Floor standing type M NET control M NET control MA control Sub number Frequency conversion controller Outdoor unit MULTI S Service Ref w PUMY P125VMA PUMY P125YMA PUMY P125YMA1 Capacity Cooling k...

Страница 7: ...capacity of the outdoor unit more than 100 the rated power of each indoor unit will be less when they are running simultaneously 1 Branching pipe Model Branching connector CMY Y62C E CMY Y64 C CMY Y68 CMY S65 2 4 8 5 NUMBER OF BRANCHING POINTS 2 Examples of System Construction All models 125 80 40 40 PIping method Total capacity of indoor units 160 Outdoor unit Indoor units Outdoor unit Indoor uni...

Страница 8: ... Heating capacity Rated power consumption Operating current Operating power factor Starting current Rated power supply Type o charge amount Control method External finish Munsell colour coded markings Dimensions H o W o D Note 1 Heat exchanger type Defrost method Pressure gauge Noise level Weight Refrigerant pipe size Refrigerant Model Type o quantity Starting method Motor output Capacity control ...

Страница 9: ...ng capacity Rated power consumption Operating current Operating power factor Starting current Rated power supply Type o charge amount Control method External finish Munsell colour coded markings Dimensions H o W o D Note 1 Heat exchanger type Defrost method Pressure gauge Noise level Weight Refrigerant pipe size Refrigerant Model Type o quantity Starting method Motor output Capacity control Daily ...

Страница 10: ...nits During cooling During heating The total model capacity of the indoor unit is 2 8 o 2 5 6 o 2 16 8kW Therefore the capacity of PKFY P25VAM A and PLFY P50VLMD A will be calculated as follows by using the formula in 4 1 2 1 Model 25 14 6 o 2 43kW Model 50 14 6 o 4 87kW The total model capacity of indoor unit is 3 2 o 2 6 3 o 2 19 0 Therefore the capacity of PKFY P25VAM A and PLFY P50VLMD A will ...

Страница 11: ...12 3 12 5 12 6 12 8 13 0 13 1 13 3 13 5 13 6 13 8 13 9 14 1 14 3 14 5 14 6 14 8 15 0 15 1 15 3 15 5 15 7 15 8 16 0 16 2 16 4 16 6 16 8 16 9 17 1 17 3 17 5 17 7 17 9 18 1 18 3 18 5 18 6 18 8 19 0 19 2 19 4 19 6 19 8 20 0 20 2 20 4 20 7 20 9 21 1 21 3 21 5 21 7 21 9 22 1 22 3 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108...

Страница 12: ...2 25 4 25 7 25 6 25 6 25 5 25 4 25 3 25 3 25 2 25 1 25 0 25 0 24 9 24 8 24 8 24 7 24 6 24 5 24 5 24 4 24 3 24 3 24 2 24 1 24 0 24 0 23 9 23 8 23 7 23 7 23 6 23 5 23 5 23 4 23 3 23 2 23 2 23 1 23 0 23 0 22 9 22 8 22 7 22 7 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 17...

Страница 13: ... 3 4 4 4 4 4 5 4 5 4 5 4 6 4 7 4 7 4 8 4 8 4 9 4 9 5 0 5 1 5 1 5 2 5 2 5 3 5 4 5 4 5 5 5 5 5 5 5 6 5 7 5 7 5 8 5 9 5 9 6 0 6 0 6 1 6 2 6 2 6 3 6 4 6 4 6 4 6 5 6 6 6 6 6 7 6 8 6 8 6 9 7 0 7 0 7 1 7 2 7 2 7 3 7 4 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124...

Страница 14: ...8 4 8 4 8 4 8 4 8 3 8 3 8 3 8 3 8 3 8 2 8 2 8 2 8 2 8 1 8 1 8 1 8 1 8 0 8 0 8 0 8 0 7 9 7 9 7 9 7 9 7 8 7 8 7 8 7 8 7 8 7 8 7 8 7 8 7 7 7 7 7 7 7 7 7 6 7 6 7 6 7 6 7 6 7 5 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 ...

Страница 15: ...o between the individual capacity at the rated time and the total capacity at the rated time individual capacity at the rated time Individual capacity under stated conditions total capacity under the stated conditions o total capacity at the rated time Service Ref PUMY P125VMA PUMY P125YMA PUMY P125YMA1 Rated cooling capacity Rated heating capacity Indoor D B 27 C W B 19 C Outdoor D B 35 C Indoor ...

Страница 16: ...ing capacity correction curve 1 0 0 95 0 9 5 10 15 20 25 30 35 40 45 50 55 Heating Capacity ratio piping length m 3 Method for Obtaining the Equivalent Piping Length Equivalent length for type 125 length of piping to farthest indoor unit 0 35 o number of bends in the piping m Length of piping to farthest indoor unit type 125 70m 5 3 3 Correction of Heating Capacity for Frost and Defrosting If heat...

Страница 17: ...0 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz PUMY P125VMA PUMY P125YMA PUMY P125YMA1 Hi 54 SPL dB LINE NOTCH 1m 1m MICROPHONE ...

Страница 18: ...ut holes for power line 2 27 Gas refrigerant pipe connection 19 05 3 4F Liquid refrigerant pipe connection 9 52 3 8F Knock out hole for right piping Bottom piping hole shaped notched holes standard bolt M10 Drain hole 3 33 hole Optional parts base branching pipe installation hole Knock out holes for power line 2 29 1 Indicates the dimensions of the cutoff valve connector 2 Make sure that the panel...

Страница 19: ...cuit Board M B Connector Connector CN5 CNAC2 Connection Terminal Ground EI NI NO Connection Lead N Phase LI LO Connection Lead L Phase Noise Filter Circuit Board N F SC N1 N2 SC P1 P2 Screw Type Terminal DC Voltage Screw Type Terminal DC Voltage SC S R LED1 IGBT Connector CNAF Connector CNDC CN2 6 Connection Terminal U V W Phase U V W P B Power Circuit Board Thermal Switch Compressor 49C Thermisto...

Страница 20: ...STOR BOARD CNS1 RED CNS2 YLW F C 2 1 1 GRN YLW ZNR BLU BLK 2 FOR CENTRALIZED CONTROL DC 30V Non polar WHT BLK WHT RED WHT ORN ORN BRN BRN GROUND TO INDOOR UNIT CONNECTING WIRES DC 30V Non polar POWER SUPPLY 3N 380 220 415 240V 50Hz W V U U X73 TB3 TB7 L2 TB1 MF2 C2 MC DCL DM NF MULTI CONTROLLER BOARD IPM RADIATOR PANEL TEMPERATURE DETECTION DISCHARGE TEMPERATURE DETECTION OUTDOOR TEMPERATURE DETEC...

Страница 21: ...K BLK 1 3 BLK SV1 WHT MF2 WHT MF1 MF1 C1 3 1 WHT BLU WHT BLU RED ORN RED ORN BLU WHT 3 1 BLU 52C N BLU L3 BLK L1 RED S M1 M2 S M2 M1 LD1 SWU1 1st digit SWU2 2nd digit 3rd digit SWU3 RESISTOR BOARD CNS1 RED CNS2 YLW F C 2 1 1 GRN YLW ZNR BLU BLK 2 FOR CENTRALIZED CONTROL DC 30V Non polar WHT BLK WHT RED WHT ORN ORN BRN BRN GROUND TO INDOOR UNIT CONNECTING WIRES DC 30V Non polar POWER SUPPLY W V U U...

Страница 22: ...0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 004 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 005 1 A transmission wire must be connected to each refrigerant system outdoor and indoor 2 Set addresses Outdoor unit 051 100 Indoor unit 001 050 Remote controller 101 200 3 PUMY P125VMA has no SW 3 3rd digit The address automatically become 100 if it is ...

Страница 23: ...H5 piping temperature monitoring and determination Thermistor TH1 discharge temperature sensor Outdoor unit Refrigerant Piping Specifications dimensions of flared connector Indoor unit Outdoor unit Capacity Item 20 25 32 40 50 63 71 80 100 125 125 Liquid piping Gas piping 6 35 1 4 9 52 3 8 9 52 3 8 9 52 3 8 12 7 1 2 15 88 5 8 19 05 3 4 19 05 3 4 4 O 3 0 O L200 O 2 2 5 O 0 6 O L500 2 5 O 0 6 O L500...

Страница 24: ...m control tasks the second one pressed will have priority if two are pressed simultaneously For the system utilizing R Converter units PAC SF29LB the following systems are not available Group operation system centralized controller group remote controller etc See the installation manual of R Converter units For indoor outdoor transmission wire Remote control wire indoor outdoor trnasmission cable ...

Страница 25: ...hat may be connected with an SC are shown as follows 3 There may be a maximum of two controllers when a group has 16 indoor units or less 4 The transmission wire must have a power supply when an SC is used Please connect the power supply for the transmission wire to the centralized controller transmission wire 5 Use a shielded wire at least 1 25mm2 for the indoor outdoor and centralized controller...

Страница 26: ...unit with the terminal block TB6 for the remote controller NR c Set the address setting switch as shown below 3 Group operation Multiple indoor units operated together by one remote controller Unit Indoor unit IC Outdoor unit OC Remote controller NR Range 001 to 050 051 to 100 101 to 150 Setting Method Use the most recent address of all the indoor unit plus 50 Indoor unit address plus 100 a Same a...

Страница 27: ...is case it should be 152 Three or more remote controller NR cannot be connected to one indoor unit The remote controller address is the indoor unit main address plus 100 In this case it should be 101 OC IC Main Sub 051 M1M2S TB5 NR 001 IC M1M2 S TB5 002 TB6 102 M1 M2S M1 M2S TB3 TB7 1 2 TB15 1 2 TB15 1 2 TB15 1 2 TB15 IC M1M2 S M1M2S TB5 001 IC TB5 002 NR Main Sub Main Sub TB6 101 NR TB6 151 NR TB...

Страница 28: ...N40 g Connect the terminal S on the terminal block for central control TB7 for the outdoor unit OC for the unit into which the jumper connector was inserted into CN40 in Step above to the ground terminal in the electrical component box h Set the address setting switch as follows i The group setting operations among the multiple indoor units is done by the remote controller NR after the electrical ...

Страница 29: ...panel should be connected to the ground terminal of the electric components box for one outdoor unit only Never connect together the terminal blocks TB5 for transmission wires for indoor units IC that have been connected to different outdoor units OC Set all addresses to ensure that they are not overlapped It cannot be connected M NET remote controller and MA remote controller with indoor unit of ...

Страница 30: ... TB5 of each indoor unit IC Use non polarized two wire b Connect terminals 1 and 2 on transmission cable terminal block TB15 for each indoor unit with the terminal block for the MA remote controller MA 3 Group operation Multiple indoor units operated together by one remote controller a The same as above b The same as above c In the case of using tow remote controllers connect terminals 1 and 2 on ...

Страница 31: ...le length R3 R4 R5 R6 200m 0 3 1 25 mm2 Longest transmission cable length The same as above MA remote controller cable length R7 R8 200m 0 3 1 25 mm2 IC M1M2 S 1 2 M1M2S TB5 TB15 1 2 TB15 000 IC TB5 000 M1 M2S M1 M2S TB3 TB7 OC 000 MA MA NR The MA remote controller and the M NET remote controller cannot be used together with the indoor unit the of the same group Three MA remote controller or more ...

Страница 32: ...oor unit OC and the grounded terminal for the electrical components box f On one outdoor unit only change the jumper connector on the control panel from CN41 to CN40 g Connect the terminal S on the terminal block for central control TB7 for the outdoor unit OC for the unit into which the jumper connector was inserted into CN40 in Step above to the ground terminal in the electrical component box h ...

Страница 33: ... S on the terminal block TB7 for the central control panel should be connected to the ground terminal of the electric components box for one outdoor unit only Never connect together the terminal blocks TB5 for transmission wires for indoor units IC that have been connected to different outdoor units OC M NET remote controller and MA remote controller cannot be connected with the indoor unit of the...

Страница 34: ... controller cable and power supply cable for secure connection Make sure that all switch settings of address or adjustments for special specification systems are correctly settled 2 Safety check With the insulation tester of 500V inspect the insulation resistance Do not touch the transmission cable and remote controller cable with the tester The resistance should be over 1 0 MΩ Do not proceed insp...

Страница 35: ... two seconds The above steps are the same as when making group settings A Changing to the linked operation unit address display state The display shown in Figure 4 will appear when the a button on the remote control is pressed Displaying the address of the Lossnay unit and linked indoor unit In this situation the indoor unit number will be the lowest address of the group The Lossnay unit will not ...

Страница 36: ...sh ion after resting the w button again Returning to the normal mode after completing the check Simultaneously press the FILTER and k buttons on the remote controller and hold for two seconds to return to the normal mode 3 Clearing an address Refer to section 1 regarding the address entry and section 2 regarding checking addresses a In making group settings Turn off the remote controller The proce...

Страница 37: ...ndoor unit fan rotation trouble Inverter main voltage drop Overheat protection of radiator panel Multiple IPM errors Over current trouble Intake thermistor trouble TH21 or discharge thermistor trouble TH1 Liquid pipe thermistor trouble TH22 or low pressure saturation thermistor trouble TH2 Gas pipe temperature sensor trouble TH23 Piping temperature sensor trouble TH5 Outdoor temperature sensor tro...

Страница 38: ...charge temperature thermistor error 1108 Compressor inner thermo abnormality When the inner thermo performs 1st detection during the compressor operation the compressor stops and restarts operation in 3 minutes 1 Low voltage supplied to power supply terminal block Measure the terminal voltage When the inner thermo performs again 2nd detection within 30 minutes since the compressor has stopped or d...

Страница 39: ...nit capacity codes miss setting If the capacity code is set greatly initial frequency rises and high pressure is easy to rise Check the outdoor unit 17 Solenoid valve SV1 performance failure High pressure pressure cannot be controlled by SV1 Check the outdoor unit heat exchanger 18 Indoor thermistor liquid pipe temperature detection detecting failure thermistor removed Hot adjust time becomes long...

Страница 40: ...l valve performance failure not full opened 2 Compressor is operating in HEAT mode 4 Error detection of discharge super heat 3 Discharge super heat is 60 or more 1 High pressure pressure sensor defective 4 Difference of outer temperature thermistor TH6 and outdoor piping temp thermistor TH5 applies to the formula of TH6 TH5 5 Check the ball valve is full opened 5 High pressure pressure sensor is b...

Страница 41: ...ether water can be drained The detected temperature is below 63 after 40seconds since the side heater of drain sensor has turned on Drain pump clogging Drain pipe clogging 3 Open circuit of drain sensor side heater Confirm the resistance of the drain sensor side heater approx 82 at normal between connector CN50 1 and 3 in the indoor controller board Check the connector contact failure 4 Contact fa...

Страница 42: ...ircuit failure If abnormality is not found in the method of the above mentioned from 1 to 3 it is defective of the indoor controller board 4115 Power supply synchronous signal abnormality When power supply synchronous signal once a second is not read stop the compressor and restarts operation in 3 minutes When the synchronous signal is not read at just before of compressor start the compressor doe...

Страница 43: ...quency detecting circuit failure in the indoor controller board or fan output circuit failure in the indoor power board 1 In the case of abnormality after the fan operation Replace the indoor controller board When the fan does not recover even if the indoor controller board is replaced replace the indoor power board 2 In the case of abnormality without fan operation replace the indoor power board ...

Страница 44: ...rmistor 5 Thermistor failure Check the resistance of thermistor Use tester 6 Thermistor input circuit failure in the multi controller board Change the SW1 to and check the temperature in radiation shield temperature thermistor When there is a big difference between the detected temp and thermistor temp replace the multi controller board 1 2 3 4 1 2 Abnormal temperature 85 84 Type 125VMA 125YMA 422...

Страница 45: ...g in 3minutes it becomes the 1st detection and performs the same action as 1 and 2 Check the resistance of IPM In the case of abnormality replace the gate ampere board and IPM Check the resistance of diode stack 6 IPM intelligent power module drive circuit in the gate amplifier defective 7 IPM intelligent power module drive signal output circuit defective power factor detecting circuit failure in ...

Страница 46: ...nection or half disconnection Check whether the thermistor wiring is disconnected or not While the compressor is protected not to restart in 3minutes the unit is delayed abnormal stop Then the outdoor unit address No and check delay code 1202 blinks alternately on the 4 digit digital display 3 Thermistor failure Check the resistance of thermistor When the resistance is not below value replace the ...

Страница 47: ...n in 3minutes When the detected temperature is normal at just before of restarting the outdoor unit restarts 1 Connector TH2 contact failure Check whether the connector TH2 in the multi controller board is connected or not When controller detects short open in thermistor at just before of restarting the unit stops abnormally In this time 5102 is displayed 2 Thermistor wiring disconnection or half ...

Страница 48: ...inutes When the detected temperature is normal at just before of restarting the outdoor unit restarts 1 Connector TH5 contact failure Check whether the connector TH5 in the multi controller board is connected or not When controller detects short open in thermistor at just before of restarting the unit stops abnormally In this time 5105 is displayed 2 Thermistor wiring disconnection or half disconn...

Страница 49: ...rature thermistor THHS A THHS B abnormality PUMY P125YMA PUMY P125YMA1 IPM radiator panel temperature thermistor THHS abnormality When controller detects short open in thermistor during the operation the outdoor unit stops once and restarts operation in 3minutes When the detected temperature is normal at just before of restarting the outdoor unit restarts 1 Connector THHS contact failure Check whe...

Страница 50: ... turn off power supply of outdoor unit indoor unit and lossnay for 2minutes or more as the same time Then turn on power supply Note Address Attribute displayed on the remote controller shows the controller detecting abnormality 2 When noise has occurred in the transmission signal and the signal has changed Check the transmitted wave and the noise on the transmission line 6602 Transmission processo...

Страница 51: ...ansmitted data by a defective repeater function which connects and intercepts the transmission of controlling system and centralized control system and it causes abnormal detection Check whether the outdoor unit terminal board for transmission line TB3 and for centralized controller TB7 are connected or not Note Address Attribute displayed on the remote controller shows the controller detecting ab...

Страница 52: ...t is an origin since there is the indoor unit which memorizes the address data cancel the unnecessary address data by the manual setting function of remote controller Line diameter 1 25 e or more However they are limited to the system which sets the group between different refrigerant systems or which fresh master lossnay are connected 4 Decline of transmission line voltage and signal by a number ...

Страница 53: ... When synchronized operating with other refrigerant system fresh master the indoor units transmits the signal to the fresh master after the fresh master and same refrigerant system outdoor unit is turned off or turned on again in 2minutes and detects abnormality The indoor unit detects when there is no reply ACK on transmitting from the indoor unit to the fresh master 2 Contact failure of fresh ma...

Страница 54: ...ansmission voltage and signal by transmission line tolerance over Check the transmission wave and noise on the transmission line Though there was a replay ACK of having received signal from the other side it is the abnormality when the response command does not return The sending side detects the abnormality continuously six times every 30 seconds Note Address Attribute displayed on the remote con...

Страница 55: ...tting to the indoor unit 1 It is abnormality though the indoor unit transmitted H when L reception is detected continuously three times Or other indoor unit is transmitting to the unit remote controller 2 It is abnormality when the indoor units cannot receive the transmission signal from the unit remote controller for 3minutes When LED1 and 2 does not blink The indoor unit and unit remote controll...

Страница 56: ...7 Code of indoor unit No 8 1 2 1 2 7100 1 Connecting total models of the indoor unit exceed the specified level 125 Possible up to 163 code 33 Check the total models of connected indoor unit When connected total models of the indoor units exceed the specified level 130 of the outdoor unit models error code 7100 is displayed Check the model code registration switch indoor controller board SW2 of co...

Страница 57: ... points 9 2 Remote controller diagnosis 1 First check the electricity current maker If the correct voltage DC 8 7 13V is not supplied on the remote controller the electric current marker will be lit If the electricity current marker is not lit check the remote controller wiring and the indoor units 2 Transfer to remote control diagnosis mode Hold down the CHECK button for five seconds or more to d...

Страница 58: ...oor outdoor unit is shorted or down M NET remote controller cable is shorted or down HO keeps being displayed or it is displayed periodically HO is usually displayed for 3 minutes at the longest after the power supply of the outdoor unit is on The power supply for the feeding expansion unit for the transmission line is not on The address of the outdoor unit remains 00 The address of the indoor uni...

Страница 59: ... unit controller board is blown The power supply of the outdoor unit is not on The power supply of the feeding expansion unit for the transmission line is not on The setting of MA remote controller is not main remote controller but sub remote controller MA remote controller is connected to the transmission line of the indoor outdoor unit The power supply of the indoor unit Master is not on The tra...

Страница 60: ...near expansion valve on indoor unit Forced defrost Cumulative 60 min Forced defrost Defrost detection switching Defrost disabled time selection Vacuum operation protection error code 1505 is not detected Enable disable operation from outdoor unit ON OFF from the outdoor unit Factory Settings Factory Settings Factory Settings Factory Settings w1 w1 For the system utilizing R Converter units PAC SF2...

Страница 61: ...ear expansion valve on indoor unit Forced defrost Cumulative 60 min Forced defrost Defrost detection switching Defrost disabled time selection Vacuum operation protection error code 1505 is not detected Enable disable operation from outdoor unit ON OFF from the outdoor unit Factory Settings Factory Settings Factory Settings Factory Settings Factory Settings Factory Settings Set for each capacity P...

Страница 62: ... Distant control board External output adapter Outdoor unit control board Relay circuit Maximum cable length is 10m Lamp power X Y Relay DC1mA For the system utilizing R Converter units PAC SF29LB the following systems are not available Group operation system centralized controller group remote controller etc See the installation manul of R Converter units For the system utilizing R Converter unit...

Страница 63: ...mistor TH6 Outdoor temperature detection Thermistor THHS A B Radiator panel PUMY P125VMA Thermistor THHS IPM radiator panel temperature thermistor detection PUMY P125YMA YMA1 Normal 160k 410k 4 3k 9 6k TH1 TH2 TH5 TH6 Abnormal Open or short Measure the resistance between the terminals using a tester Part wiring temperature 20C 4 WAY COIL 21S4 Normal 1430 Normal 1 5 White Red 2 6 Yellow Brown 3 5 O...

Страница 64: ...57 273 t 393 1 1 20 250k 30 160k 40 104k 50 70k 60 48k 70 34k 80 24k 90 17 5k 100 13 0k 110 9 8k High temperature thermistor Thermistor TH1 Discharge temperature detection 500 400 300 200 100 0 25 50 75 100 120 Temperature Resistance K 0 180k 25 50k 50 17k 70 8k 90 4k Thermistor R50 17k 2 B constant 4150k 3 Rt 17exp 4150 273 t 323 1 1 Medium temperature thermistor Thermistor THHS A B Radiator pane...

Страница 65: ... A SLEV will not vibrate or make noise when the valve is operating smoothly However when the number of pulses change from E to A or if the valve lockup there may be more noise than under normal circumstances The noise can be heard by resting your ear on the handle of a screwdriver that is pressed against the top of the LEV LEV A SLEV valve 2 LEV A SLEV action 1 2 3 4 Expansion valve LEV A SLEV Out...

Страница 66: ...xpansion valve should be fully closed when the fan is operating The temperature measured by the temperature sensor will drop if there is any leakage If the measured temperature is significantly lower than that on the remote controller this indicates that the valve is not closed It is not necessary to replace the linear expansion valve if the leak of refrigerant is small and does not cause a malfun...

Страница 67: ... address with the lowest number Notes Alternating display of addresses 0000 9999 and abnormality code including abnormality delay code 0 9999 unit 1 hour 0 9999 unit 10 hour 0 255 Excitation Current No 1 unit mode No 1 unit operation Restart after 3 minutes No 2 unit mode No 2 unit operation Compressor operation No 3 unit mode No 3 unit operation Abnormality detection No 4 unit mode No 4 unit oper...

Страница 68: ...Opening pulse IC3 LEV Opening pulse IC4 LEV Opening pulse IC5 LEV Opening pulse High pressure sensor Pd TH1 Td TH2 ET TH6 TH5 THHS IC1 TH23 IC2 TH23 IC3 TH23 IC4 TH23 IC5 TH23 IC1 TH22 IC2 TH22 1 2 3 4 7 5 6 8 Display of indoor unit operating mode Light on light off Input light off No input light on Display of communication demand capacity PUMY P125VMA PUMY P125VMA PUMY P125VMA Display of actual o...

Страница 69: ...C4 TH22 IC5 TH22 IC1 TH21 IC2 TH21 IC3 TH21 IC4 TH21 IC5 TH21 Outdoor SC cooling Target subcool step IC1 SC SH IC2 SC SH IC3 SC SH IC4 SC SH IC5 SC SH Discharge superheat Target Pd display heating Target ET display cooling Target outdoor SC cooling Target indoor SC SH IC1 Target indoor SC SH IC2 Target indoor SC SH IC3 Target indoor SC SH IC4 Target indoor SC SH IC5 Actual frequency of abnormality...

Страница 70: ...ulse at time of abnormality IC2 LEV opening pulse at time of abnormality IC3 LEV opening pulse at time of abnormality IC4 LEV opening pulse at time of abnormality IC5 LEV opening pulse at time of abnormality High pressure sensor data at abnormality TH 1 sensor data at time of abnormality TH 2 sensor data at time of abnormality TH 5 sensor data at time of abnormality THHS sensor data at time of abn...

Страница 71: ...rmality delay IC8 LEV opening pulse at abnormality delay IC6 SC SH at abnormality delay IC7 SC SH at abnormality delay IC8 SC SH at abnormality delay IC6 LEV opening pulse at time of abnormality IC7 LEV opening pulse at time of abnormality IC8 LEV opening pulse at time of abnormality IC6 SC SH at abnormality IC7 SC SH at abnormality IC8 SC SH at abnormality 1 2 3 4 5 6 7 8 Display on the LD1 displ...

Страница 72: ... necessary to include leakage breakers when installing wiring for the CITY MULTI S series Protective switches excessive current protection along main or branch lines should typically consist of fuse less breakers ELB 4 Please perform grounding 5 It is suggested that you consult with your electric power company concerning restrictions on electrical specifications Outdoor unit Grounded Circuit break...

Страница 73: ...ion wires Types of transmission cables Shielding wire CVVS or CPEVS Cable diameter More than 1 25E Maximum wiring length Within 200 m Maximum extension length of wiring L1 L2 L3 L4 less than 500m Maximum wire length L1 L2 L4 or L1 L3 or L2 L3 L4 less than 200m Remote controller wire R network controller wire is less than 10m Note 1 Please make sure that the transmission wire is grounded at the out...

Страница 74: ...m2 2 10 6 METHOD FOR OBTAINING ELECTRICAL CHARACTERISTICS WHEN A CAPACITY AGREEMENT IS TO BE SIGNED WITH AN ELECTRIC POWER COMPANY The electrical characteristics of connected indoor unit system for air conditioning systems including the MULTI S series will depend on the arrangement of the indoor and outdoor units First read the data on the selected indoor and outdoor units and then use the followi...

Страница 75: ... Unit to First Branch A 2 Sections From Branch to Indoor Unit a b c d 3 Section From Branch to Branch B C 3 Refrigerant Piping Diameter In Section From Branch to Branch 2 Refrigerant Piping Diameter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Each Section of Piping Refrigerant of 3kg equivalent to 50 m total extended piping length is already included when the outdoor unit is ...

Страница 76: ... First Branch Out door Unit Piping Diameter 1 Section From Outdoor Unit to First Branch A 2 Sections From Branch to Indoor Unit a b c d 2 Refrigerant Piping Diameter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Each Section of Piping Refrigerant of 3kg equivalent to 50 m total extended piping length is already included when the outdoor unit is shipped Thus if the total extende...

Страница 77: ...tions From Branch to Indoor Unit a b c d e 3 Section From Branch to Branch B C 3 Refrigerant Piping Diameter In Section From Branch to Branch 2 Refrigerant Piping Diameter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Each Section of Piping Refrigerant of 3kg equivalent to 50 m total extended piping length is already included when the outdoor unit is shipped Thus if the total e...

Страница 78: ...ne a maximum of 5 indoor units can be connected Refrigerant Piping Diameter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Refrigerant of 3kg equivalent to 50 m total extended piping length is already included when the outdoor unit is shipped Thus if the total extended piping length is 50m or less there is no need to charge with additional refrigerant If the total extended pipin...

Страница 79: ... Calculate room volumes in K and find the room with the smallest volume The part with represents the room with the smallest volume a Situation in which there are no partitions 3 Use the results of calculations 1 and 2 to calcu late the refrigerant concentration If the calculation results do not exceed the maximum concen tration perform the same calculations for the larger second and third room etc...

Страница 80: ...dures 1 Remove the side panel See photo 1 2 Remove the top panel See photo 1 3 Remove the fan protection cover fixing screw 1 pc 15o15 and take off the fan guard by rotating it to the left 4 PUMY P125VMA Remove the fan motor wires MF1 MF2 from the multi circuit board Remove the capacitor wires PUMY P125YMA PUMY P125YMA1 Remove the fan motor wires MF1 MF2 from the power supply board Remove the capa...

Страница 81: ...ove the electrical box screw 1 pc 4 o 10 8 Remove the valve bed screws from the right side of the valve bed 2 pcs 4 o 10 9 Remove the electrical box after slightly loosening the rear panel The electrical box is held by two claws on the left and one on the right Photo 5 PUMY P125VMA Rear panel Electrical parts box Multi circuit board Valve bed screws Connector cover Valve bed Board plate Power circ...

Страница 82: ...oving the connector cover remove the compressor wire and the inner thermostat terminal 7 Remove the electrical box screw 1 pc 4 o 10 8 Remove the valve bed screws from the right side of the valve bed 2 pcs 4 o 10 9 Remove the electrical box after slightly loosening the rear panel The electrical box is held by two claws on the left and one on the right 6 Solenoid valve coil and 4 way valve coil dis...

Страница 83: ...x See photo 5 or 6 5 Remove screws 3 pcs 4o10 4 pcs 5o16 and the valve bed including the ball valve mounting portion 6 Recover gas from the refrigerant circuit 7 Remove the separator screw 1 pc 4o10 8 Remove the welded portions of the compressor discharge and intake pipes 9 Remove the compressor leg cover on the separator side 10 Remove the compressor leg mounting nuts 3 pcs use an adjustable wren...

Страница 84: ...id valve disassembly procedures 1 Remove the side panel See photo 1 2 Remove the electrical parts box See photo 5 or 6 3 Recover gas from the refrigerant circuit 4 Remove the solenoid valve coil See photo 7 5 Remove the welded portions of the solenoid valve take care excessive heating 12 Expansion valve disassembly procedures 1 Remove the side panel See photo 1 2 Remove the electrical parts box Se...

Страница 85: ...ounting screws 2 pcs 4o10 Photo 14 Photo 15 14 Capillary tube disassembly procedures 1 Remove the side panel See photo 1 2 Remove the top panel See photo 1 3 Remove the electrical parts box See photo 5 or 6 4 Recover gas from the refrigerant circuit 5 Remove the field piping from the unit liquid side 6 Remove the welded portions of capillary tube To remove welded portions cut the band holding it a...

Страница 86: ...RMINAL BLOCK TERMINAL BLOCK REACTOR RESISTOR RUSH CURRENT PROTECTION ACTIVE FILTER MODULE SMOOTHING CAPACITOR MAGNETIC CONTACTOR 3 5µF 440VAC 6 3A 250V 3P M1 M2 S 3P L N 1 600µ 400WV S U12 230V 2 1 2 1 2 1 2 1 4 1 1 1 1 C1 2 M B F1 F2 P B THHSA B N F TB3 7 TB1 DCL1 2 3 4 RS ACTE CE 52C R01 580 255 T7W E19 315 T7W 520 239 T7W E08 313 R01 E65 202 T7W E04 346 T7W A12 716 T7W A13 716 T7W E01 259 T7W E...

Страница 87: ...BLOCK NOISE FILTER CAPACITOR VARISTOR DIODE MODULE THERMISTOR IPM RADIATOR PANEL 3 5µF 440VAC 2A 250V 6 3A 250V S U12 230V 3P M1 M2 S 5P L1 L2 L3 N 2 1 1 1 1 1 1 1 2 1 1 2 1 1 1 2 1 1 1 1 1 1 1 2 1 1 2 1 1 1 C1 2 FUSE2 FUSE1 DCL 52C TB3 7 TB1 NF C03 ZNR DM THHS R01 580 255 T7W E02 239 T7W 520 239 T7W E11 315 T7W E18 315 T7W E00 259 T7W E00 311 T7W 249 708 T7W E00 234 T7W A12 716 T7W E10 716 T7W E0...

Страница 88: ...88 FUNCTIONAL PARTS PUMY P125VMA PUMY P125YMA PUMY P125YMA1 13 27 26 15 8 18 14 17 7 16 21 22 25 9 11 12 2 1 3 4 5 10 20 6 19 23 24 ...

Страница 89: ...E THERMISTOR OUTDOOR TEMPERATURE DETECTION THERMISTOR OUTDOOR TEMPERATURE DETECTION HEAT EXCHANGER FAN MOTOR FAN MOTOR DRYER M8 2 5O 0 6O500mm EEV 48FAM EEV 48FAK 3 8 3 4 2 5O 0 6O500mm 4 0O 3 0O200mm 4 0O 2 4O360mm PA6V60 GD PA6V60 GC 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 1 2 1 ...

Страница 90: ...NEL REAR GUARD MOTOR PLATE TOP PANEL TOP PANEL SCREW 5O10 SIDE PANEL LEFT PUMY P125 YMA YMA1 VMA 2 1 3 1 1 1 1 1 1 1 1 1 11 1 2 1 3 1 1 1 1 1 1 1 1 1 11 1 2 1 3 1 1 1 1 1 1 1 1 1 11 1 BG00G362G27 BG00C965G20 Z004B293H10 R01 KN4 675 R01 38A 668 R01 KL5 655 R01 38A 686 R01 E01 130 T7W E06 658 R01 38A 682 R01 38A 661 R01 KP2 698 T7W E00 641 R01 38A 641 R01 KP2 662 STRUCTURAL PARTS PUMY P125VMA PUMY P...

Страница 91: ......

Страница 92: ...d in Sep 2003 No OC272 REVISED EDITON A PDF 11 Distributed in Dec 2001 No OC272 PDF 300 Made in Japan New publication effective Sep 2003 Specifications subject to change without notice HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN ...

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