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10. Defrost control

In heating operation, defrost operation is performed when TE sensor temperature satisfies any condi-

tion in A zone to D zone.

The defrost operation is immediately finished if TE sensor temperature has become 12°C or more, or it

also is finished when condition of 7°C

≤

TE < 12°C has continued for 1 minute. The defrost operation is

also finished when defrost operation has continued for 10 minutes even if TE sensor temperature has
become 7°C or lower.

After defrost operation has finished, the compressor and the outdoor fan start heating operation after

stopped for approx. 50 seconds.

Start of heating operation

* The minimum TE value between 10 and 15 minutes after heating operation has started is stored in memory as TE0.

A zone

B zone

C zone

D zone

Defrost operation is performed in this zone when TE0-TE

≥

3 continued for T seconds.

Defrost operation is performed in this zone when TE0-TE

≥

3 continued for T seconds.

Defrost operation is performed when this zone continued for T seconds.

SM561, SM801

SM1101, SM1401

[min.]

TE [ºC]

–4 (–5)

–6 (–10)

–10 (–13)

–25 (–18)

Numerals enclosed with parentheses represent numeral values of SM1101 and SM1401.

A zone

B zone

C zone

D zone

A zone

B zone

C zone

D zone

Содержание RAV-SM1101AT-E

Страница 1: ...ICE MANUAL SPLIT TYPE NEW DIGITAL INVERTER OUTDOOR UNIT RAV SM561AT E RAV SM801AT E RAV SM1101AT E RAV SM1401AT E INDOOR UNIT This Service Manual describes contents of the new outdoor unit For the indoor unit refer to the Service Manual with FILE NO A03 003F ...

Страница 2: ...t 31 8 3 Error Mode Judgment by LED Display of Outdoor Unit 34 8 4 Contents of Error Display 35 8 5 Troubleshooting Procedure for Each Check Code 36 8 5 Other Function 57 9 DETACHMENTS 58 10 EXPLODED VIEWS AND PARTS LIST 73 ADOPTION OF NEW REFRIGERANT This Air Conditioner is a new type which adopts a new refrigerant HFC R410A instead of the conventional refrigerant R22 in order to prevent destruct...

Страница 3: ...ompressor Motor kW Pole Refrigerant charged kg Refrigerant control Standard length Max total length m Pipe Over 20m Height difference Outdoor lower m Outdoor higher m Height mm Outer dimension Width mm Depth mm Total weight kg Heat exchanger Fan Fan unit Standard air flow High m h Motor W Connecting pipe Gas side mm Liquid side mm Protection device Sound level High Mid Low dB A Note 2 Cooling Heat...

Страница 4: ...tic compressor 2 5 3 0 4 poles R410A 2 8 Pulse motor valve 30 without additional charge 50 Add 40 g m Max 800 g 30 30 795 780 320 77 Finned tube Propeller fan 4500 100 Ø15 9 5 8 Ø9 5 3 8 Discharge temp sensor Over current sensor Compressor thermo 53 54 Note 1 The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based on the reference piping...

Страница 5: ...r service 320 600 2 Ø11 14 U shape holes For Ø8 Ø10 anchor bolt Suction port Suction port Discharge port Minimum distance up to wall 2 Ø11 14 long hole For Ø8 Ø10 anchor bolt Anchor bolt mounting dimension 500 or more 150 or more 300 or more 150 or more 600 320 320 R15 R5 5 2 Ø6 hole Product external line Product external line 600 2 Ø6 hole R15 R5 5 Details of A legs Details of B legs 25 31 143 71...

Страница 6: ...2 Ø11 14 U shape holes For Ø8 Ø10 anchor bolt Suction port Suction port Discharge port Minimum distance up to wall 2 Ø11 14 long hole For Ø8 Ø10 anchor bolt Anchor bolt mounting dimension 500 or more 150 or more 300 or more 150 or more 600 320 320 R15 R5 5 2 Ø6 hole Product external line Product external line 600 2 Ø6 hole R15 R5 5 Details of A legs Details of B legs 25 31 143 71 157 79 22 108 483...

Страница 7: ...lare at liquid side Refrigerant pipe connecting port Ø15 9 Flare at gas side Discharge guide mounting hole 4 Ø4 Embossing 1 1 2 2 795 85 165 60 80 25 60 90 320 28 400 161 58 46 30 45 27 Space required for service 365 600 2 Ø12 17 U shape holes For Ø8 Ø10 Anchor bolt Suction port Discharge port Discharge port Minimum distance up to wall 2 Ø12 17 long hole For Ø8 Ø10 Anchor bolt 500 or more 150 or m...

Страница 8: ... 15 Compressor revolutions per second rps 70 70 50 97 95 98 Indoor fan HIGH HIGH LOW HIGH HIGH HIGH Indoor Outdoor temp conditions DB WB C Indoor Outdoor 27 19 35 32 24 43 18 15 5 5 20 7 6 28 24 18 15 10 70 Indoor unit Outdoor unit Outer diameter of refrigerant pipe Gas side ØA Liquid side ØB 12 7mm 6 4mm TCJ sensor Air heat exchanger Strainer TC sensor Refrigerant pipe at gas side Ø12 7 Packed va...

Страница 9: ...5 32 24 43 18 15 5 5 20 7 6 28 24 18 15 10 70 4 poles are provided to this compressor The compressor frequency Hz measured with a clamp meter is 2 times of revolutions rps of the compressor Indoor unit Outdoor unit Outer diameter of refrigerant pipe Gas side ØA Liquid side ØB 15 9mm 9 5mm TCJ sensor Air heat exchanger Strainer TC sensor Refrigerant pipe at gas side Ø15 9 Packed valve Refrigerant p...

Страница 10: ...uction Indoor heat Outdoor heat exchanger exchanger TD TS TC TE 87 8 9 39 84 15 17 47 40 7 3 23 85 1 47 1 81 14 54 13 80 19 40 16 Compressor revolutions per second rps 54 45 30 61 24 73 Indoor fan HIGH HIGH LOW HIGH LOW HIGH Indoor Outdoor temp conditions DB WB C Indoor Outdoor 27 19 35 32 24 43 18 15 5 5 20 7 6 30 24 18 15 10 70 4 poles are provided to this compressor The compressor frequency Hz ...

Страница 11: ...600 BLK CN600 WHI CN601 WHI CN801 Compressor CN500 BLU CN804 BLU 49C CN700 YEL Coil for 4 way valve RED RED 20SF CN604 WHI CN605 WHI TH TS TE TO TD ORN RED RED WHI BLK BLK Fan motor ORN GRY PNK YEL BLK WHI RED PNK RED BLU WHI BLK BLU YEL BLK WHI RED GRY P13 P12 GRY SUB P C Board MCC 1531 P C Board MCC 1438 3 2 1 N L Power supply 220V 240V 50Hz CN03 CN02 CN01 RED WHI Reactor Reactor F01 Fuse T25A 2...

Страница 12: ...ted 43 W 3 phase 4P 1100 W 10 mH 16A 10 kΩ at 25 C 10 kΩ at 25 C 10 kΩ at 25 C 50 kΩ at 25 C T3 15 A AC 250 V 25 A AC 250 V ON 90 5 C OFF 125 4 C No 1 2 3 4 5 6 7 8 9 10 11 Parts name Fan motor Compressor Reactor Outdoor temp sensor To sensor Heat exchanger sensor Te sensor Suction temp sensor Ts sensor Discharge temp sensor Td sensor Fuse Switching power Protect Fuse Inverter input Current protec...

Страница 13: ...e pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused 5 After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged...

Страница 14: ...taken to ensure that water or dust does not enter the pipe interior that no other oil other than lubricating oils used in the installed air conditioner is used and that refrigerant does not leak When using lubricating oils in the piping processing use such lubricating oils whose water content has been removed When stored be sure to seal the container with an airtight cap or any other cover 1 Flare...

Страница 15: ...eter 1 4 3 8 1 2 5 8 Outer diameter mm 6 35 9 52 12 70 15 88 Thickness mm 0 8 0 8 0 8 1 0 A mm Flare tool for R410A clutch type 0 to 0 5 0 to 0 5 0 to 0 5 0 to 0 5 Conventional flare tool Clutch type Wing nut type 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 1 0 to 1 5 2 0 to 2 5 Nominal diameter 1 4 3 8 1 2 5 8 Outer diameter mm 6 35 9 52 12 70 15 88 Thickness mm 0 8 0 8 0 8 ...

Страница 16: ...rs Table 6 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manufacturer If any other oil is used the lubricating oils may deteriorate and cause the compressor to burn out Table 6 2 7 Tightening torque of flare for R410A Reference values Nominal diameter 1 4 3 8 1 2 5 8 3 4 Outer diameter mm 6 35 9 52 12 70 15 88 19 05 Thickness mm 0 8 0 8...

Страница 17: ...R410A is being currently developed General tools Conventional tools can be used In addition to the above exclusive tools the following equipments which serve also for R22 are necessary as the general tools 1 Vacuum pump Use vacuum pump by attaching vacuum pump adapter 2 Torque wrench 3 Pipe cutter 4 Reamer 5 Pipe bender 6 Level vial 7 Screwdriver 8 Spanner or Monkey wrench 9 Hole core drill Ø65 10...

Страница 18: ...Gas side Open Close valve for charging Electronic balance for refrigerant charging Opened OUTDOOR unit Closed Service port Connect the charge hose to packed valve service port at the outdoor unit s gas side Recover the refrigerant and check no refrigerant remains in the equipment For refrigerant charging see the figure below Connect the charge hose of the vacuum pump adapter Open fully both packed...

Страница 19: ...loy mainly composed of silver and copper It is used to join iron copper or copper alloy and is relatively expensive though it excels in solderability 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is we...

Страница 20: ...x Do not enter flux into the refrigeration cycle When chlorine contained in the flux remains within the pipe the lubricating oil deteriorates Therefore use a flux which does not contain chlorine When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water Remove the flux after brazing 6 5 3 Brazing As brazing work requires sophisticated techniqu...

Страница 21: ...C200 Drive IG QTY 1P L phase power supply lead Black N phase power supply lead White Serial lead Orange Reactor lead connector White CN300 Fan motor connector CN602 Outdoor temperature TO sensor connector CN806 Optional connector CN600 Heat exchange temperature TE sensor connector CN603 Suction temperature TS sensor connector CN601 Discharge temperature TD sensor connector CN701 4 way valve connec...

Страница 22: ...ommunication signal To MCC 1531 CN06 AC output To MCC 1531 CN13 Rectifier connectors P29 Red P28 Black P21 Orange P24 Brown Reactor Connector Capacitor Mains Neutral input CN02 Mains Live input CN01 DC320V output To MCC 1531 CN04 Earth ground CN03 TH sensor CN600 Rectifier RAV SM1101AT E RAV SM1401AT E IPDU MCC 1438 ...

Страница 23: ... P M V CN702 Case thermo switch CN500 Communication signal To MCC 1438 CN800 TS sensor CN605 Optional connector CN804 TE sensor CN604 TO sensor CN601 TD sensor CN600 Fan motor output CN301 Fan motor revolution CN300 DC15V input To MCC 1438 CN04 DC320V input To MCC 1438 CN03 Serial signal To terminal block CN02 AC input To MCC 1438 CN01 4 way valve CN700 ...

Страница 24: ...is lowers the operation frequency when the discharge temperature has not lower or the discharge temperature has rapidly risen during PMV control It subdivides the frequency control up to a unit of 0 6 Hz to stabilize the cycle 2 When the discharge temperature is detected in an abnormal stop zone the unit stops the compressor and restarts after 2 minutes 30 seconds The error counter is cleared when...

Страница 25: ...fan is fixed with the maximum fan tap which corresponds to the zone in the following table After then the fan is controlled by TE sensor temperature Considering a case that TE sensor has come out of the holder the fan is controlled so that revolution frequency of the fan increases regardless of TE if temperature of TD sensor has risen 1 tap 20 seconds rpm hold 1 tap 20 seconds Operation with maxim...

Страница 26: ...oil heating control 1 This control function heats the compressor by turning on the stopped compressor instead of a case heater It purposes to prevent slackness of the refrigerant inside of the compressor 2 As usual turn on power of the compressor for the specified time before a test run after installation otherwise a trouble of the compressor may be caused As same as a test run it is recommended t...

Страница 27: ... determined as an error and restart is not performed Error code P04 is displayed After restarting the compressor continue controlling by using 70 to 90 of the control value of the current release control for minimum 30 minutes 8 Over current preventive control This control function stops the compressor when over current preventive circuit has detected an abnormal current The compressor restarts wi...

Страница 28: ...tion after stopped for approx 50 seconds Start of heating operation The minimum TE value between 10 and 15 minutes after heating operation has started is stored in memory as TE0 A zone B zone C zone D zone Defrost operation is performed in this zone when TE0 TE 3 continued for T seconds Defrost operation is performed in this zone when TE0 TE 3 continued for T seconds Defrost operation is performed...

Страница 29: ...on control work in heating operation Does not outside low temperature operation control work in cooling operation Is not defrost operation performed d ON OFF operation cannot be performed from remote controller Is not the control operation performed from outside remote side Is not automatic address being set up When the power is turned on at the first time or when indoor unit address setting is ch...

Страница 30: ...annot be performed from remote controller Is not forced operation performed Is not the control operation performed from outside remote side Is not automatic address being set up Did you return the cabling to the initial positions Are connecting cables between indoor unit and receiving unit correct 2 Troubleshooting procedure When the power is turned on at the first time or when indoor unit address...

Страница 31: ...tor of float circuit Stop Displayed when error is detected 1 Defect of drain pump 2 Clogging of drain pump 3 Check float switch 4 Check indoor P C board l P12 Indoor DC fan error Stop Displayed when error is detected 1 Defective detection of position 2 Over current protective circuit of indoor fan driving unit operates 3 Lock of indoor fan 4 Check indoor P C board l P19 Error in 4 way valve system...

Страница 32: ...erature error Discharge temperature over specified value was detected Stop Displayed when error is detected 1 Check refrigerating cycle Gas leak 2 Trouble of PMV 3 Check Td sensor l P04 High pressure protection error by TE sensor Temperature over specified value was detected Stop Displayed when error is detected 1 Overload operation of refrigerating cycle 2 Check outdoor temperature sensor TE 3 Ch...

Страница 33: ...for 2 remote controllers including wireless Master unit is one and others are sub units L20 Central remote controller 98 Duplicated indoor central addresses on communication of central control system AI NET Detected by central controller side Stop Automatic restart Displayed when error is detected 1 Check address setup of central control system network Network adapter SW01 2 Check network adapter ...

Страница 34: ...pump down operation l Protective operation count In normal time Count 1 l l During backup Count 2 Count 3 l control Count 4 Count 5 l Count 6 Count 7 Protective operation PMV opening data Lower 4 bit data Add 16 pulses Add 8 pulses Add 4 pulses Add 2 pulses if this LED goes on if this LED goes on if this LED goes on if this LED goes on PMV opening data Upper 4 bit data Add 256 pulses Add 128 pulse...

Страница 35: ...trol at IPDU side and the unit stops When case thermostat operates the communication is interrupted on the serial circuit If continuing the case thermostat operation a serial communication error occurs because serial sending to the indoor unit is inter rupted No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Item TE sensor error TD sensor error TS sensor error TO sensor error Discharge temp error DC ou...

Страница 36: ...k power connection of indoor unit Turn on power again Check indoor P C board Defect Replace Correct as a master unit a sub unit Remote controller address connector Check remote controller P C board Defect Replace Correct as a header unit a follower unit Remote controller address connector Check remote controller P C board Defect Replace NO YES NO NO NO YES YES YES NO YES YES YES NO NO 8 5 Troubles...

Страница 37: ...o operate Are 1 2 3 inter unit wires normal Are connections from connectors of inter terminal blocks 1 2 3 of indoor outdoor units normal Does voltage between 2 and 3 of inter terminal blocks 1 2 3 of indoor unit vary Is DC280V applied between terminals of electrolytic capacitor of IPDU main circuit Check indoor P C board Defect Replace As shown in the following figure perform measurement within 2...

Страница 38: ... P C board Defect Replace Check indoor control P C board Defect Replace NO NO YES YES YES NO NO YES NO NO YES YES Is capacity of indoor unit unset YES NO E10 error CF error E18 error 97 error 99 error When central controller 99 is displayed there are other causes of trouble E08 L03 L07 L08 error 96 error 99 error When central controller 99 is displayed there are other causes of trouble E08 Duplica...

Страница 39: ...pter Defect Replace NO NO YES NO NO NO NO YES YES YES NO YES YES YES YES Are wire connections to communication line X Y normal Is indoor remote controller L20 displayed Is central controller 98 displayed Are outside devices of connector CN80 connected Is check code displayed on follower unit of header or follower remote controller Do outside devices normally operate Is group operation performed Ar...

Страница 40: ... cabling Is there no connection error disconnection of CN076 connector Refer to Characteristics 1 NO YES NO YES NO NO NO NO YES NO YES YES YES YES YES NO Does float switch operate Is capacitor normal Does drain pump operate Is circuit cabling normal Is power of drain pump turned on Is connection of float switch connector Indoor control P C board CH34 normal Is there no mechanical lock of fan motor...

Страница 41: ...33 and CN334 are mounted and the power is turned on Rotate the fan slowly with hands and check the pin voltage swings between 0 to 5V voltage Between and 5V Check indoor P C board Defect Replace Remove connectors CN333 and CN334 of indoor unit P C board Replace indoor fan motor Replace indoor fan motor Replace indoor fan motor YES NO NO NO NO NO YES YES YES YES Turn off the power Is resistance val...

Страница 42: ...to AP80 CN301 AP140 AP160 Connector for detection of motor position CN300 AP140 AP160 Correct connection of connector NO Correct connection of connector Fan motor Normal Fan motor Error Control Main P C board error YES Fan motor Normal Fan motor Error Are 18 to 30 W applied for the resistance between 1 Red lead and 2 White lead 2 White lead and 3 Black lead 3 Black lead and 1 Red lead of connector...

Страница 43: ... C board error Replace Check 4 way valve Defect Replace 4 way valve coil Defect Replace Is operation of 4 way valve normal Is there continuity to coil of 4 way valve NO Check 4 way valve Defect Replace Check CDB P C board Defect Replace Check wiring Correct YES NO NO NO NO YES NO YES YES NO YES No problem YES NO YES Check indoor P C board Defect Replace Is connection of TC sensor connector Indoor ...

Страница 44: ...Refer to Characteristics 2 Replace control P C board of SM56 SM80 Is power voltage normal Check and correct circuit wires Correct connection of connector Check and correct reactor connection Are connections of wiring connector normal Are not 14 errors output when an operation is performed by removing 3P connector of compressor Replace control P C board of SM56 SM80 Is compressor normal Check rare ...

Страница 45: ...s 0 6 to 1 2W Is compressor normal Is not earthed Is not winding opened Compressor trouble Replace Compressor trouble Replace Compressor trouble Replace Check and correct circuit wires Check and correct circuit wiring such as wiring to compressor Check IPDU P C board Defect Replace Check IPDU Defect Replace For SM56 SM80 replace control P C board YES YES NO NO NO YES P29 error 16 error H03 error 1...

Страница 46: ...ontrol P C board Defect Replace Refer to Characteristics 4 YES NO Are characteristics of TD sensor resistance value normal Replace TD sensor YES NO Is connection of TO sensor connector of CDB CN601 normal Correct connection of connector Check CDB Defect Replace Refer to Characteristics 5 For SM56 SM80 CN602 TO sensor YES NO Are characteristics of TO sensor resistance value normal Replace TO sensor...

Страница 47: ...PDU and CDB and connector Check compressor error and rear short Defect Replace Check outdoor control P C board Defect Replace IPDU P C board error Defect Replace IPDU P C board error Defect Replace Check TE and TS sensors Replace Check P M V Replace Is there no slackened refrigerant Does P M V normally operate Is power voltage normal Is compressor normal Are connections of wire connector normal Ch...

Страница 48: ...onnections of wire connector normal Correct the wiring and connection of connector Improve and delete the cause Replace TD sensor Improve power line Improve and delete the cause Check CDB Defect Replace Check parts Defect Replace Check and correct the charged refrigerant amount For SM56 SM80 replace control P C board Check IPDU Defect Replace For SM56 SM80 replace control P C board NO NO NO NO NO ...

Страница 49: ...r Check TE sensor Defect Replace Correct connection of connector Check TE TC TS sensors Replace P M V Replace TD TO and TC sensors Check CDB Defect Replace Does cooling outdoor fan normally operate Does PMV normally operate Is fan motor normal Replace fan motor Correct coming off Are characteristics of TD TO TC sensor resistance values normal Check charged refrigerant amount Check liquid gas valve...

Страница 50: ...P C board and connectors CN309 CN41 of indoor P C board normal Check connections of A B terminal blocks Correct communication line of remote controller Check central controller Defect Replace Check network adapter P C board and power transformer Defect Replace Check indoor P C board Defect Replace Is the network address changed form remote controller Does network adapter P C board LED D01 go on Ca...

Страница 51: ...ectively If E03 occurs during an operation the air conditioner stops F29 error 12 error F29 error or 12 error indicates detection of trouble which occurred on IC10 non volatile memory EEPROM on the indoor unit P C board during operation of the air conditioner Replace the service P C board If EEPROM has not been inserted when the power was turned on or if EEPROM data never be read written the autom...

Страница 52: ...r Temperature C Resistance k 50 C or higher Resistance k 10 C or higher Caracteristics 4 Temperature C TC TCJ sensor TE TO TS sensor TD sensor TA sensor 20 10 0 10 20 40 30 50 200 100 20 10 0 0 10 0 10 20 40 30 50 60 70 40 30 20 10 0 0 10 10 30 20 40 50 60 70 200 100 20 10 0 0 50 100 8 4 2 Relational Graph of Temperature Sensor Resistance Value and Temperature ...

Страница 53: ...48 171819 20212223242526272829303132 1 MONITOR SET ZONE ALL CENTER LOCKED AUX TYPE TIMER No STANDBY FILTER ON OFF MODE FANONLY COOL DRY HEAT AUTO ON UNIT 2 3 4 5 6 7 8 9 10111213141516 FAN AUTO HIGH MED LOW FIX TEMP CHECK 1 2 C LOUVER MANUAL LOUVER FAN TEMP MODE MONITOR SET ALL ZONE ZONE UNIT ON CENTER LOCKED CHECK ZONESET ENTER SELECT OFF TIMERON 49505152535455565758596061626364 33343536373839404...

Страница 54: ...p 5Hz flash Network address miss setting Addresses of central controllers Central control remote controller etc are duplicated Operation continues Displayed when error is detected 1 Check central control system network address setting SW02 2 Indoor P C board check 3 Central controller check Communication P C board Error in 4 way valve system Indoor heat exchanger temperature rise after start of co...

Страница 55: ...es 2 Check indoor P C board Main P C board MODE lamp 5Hz flash Outside interlock input Detected by input voltage level from outside devices All stop Displayed when error is detected 1 Check outside devices 2 Check indoor P C board Main P C board Operation of diagnostic function Check code Cause of operation Status of air conditioner Condition Judgment and measures Serial return signal is not sent ...

Страница 56: ...PDU Compressor does not rotate Over current protective circuit works when constant time passed after activation of compressor All stop Displayed when error is detected 1 Compressor error Compressor lock etc Replace compressor 2 Wiring trouble of compressor Phase missing Discharge temp error Discharge temp over specified value was detected All stop Displayed when error is detected 1 Check refrigera...

Страница 57: ...ant in case of reinstallation of the indoor or outdoor unit etc use the refrigerant recovery switch SW802 on the cycle control P C board of the outdoor unit Work procedure 1 Turn on the power supply 2 Using the remote controller set FAN operation to the indoor unit 3 Pushing the refrigerant recovery switch SW802 on the cycle control P C board of the outdoor unit starts the forced cooling operation...

Страница 58: ...or connecting cables 4 Remove the upper cabinet ST1T Ø4 8 5 pcs After taking off screws remove the front side of the upper cabinet while pulling upward 2 Attachment 1 Attach the waterproof cover REQUIREMENT Be sure to attach a waterproof cover to prevent entering of rainwater etc 2 Attach the upper cabinet ST1T Ø4 8 5 pcs Hook the rear side of the upper cabinet and then cover the front cabinet wit...

Страница 59: ... and the motor support ST1T Ø4 8 2 pcs The left side of the front side is made to insert to the side cabinet Left so remove it while pulling upward 2 Attachment 1 Insert hook at the left side of the front side into the side cabinet Left 2 Insert hook at the right side of the side cabinet into square hole of the front cabinet 3 Attach the removed screws at the original positions Remarks Motor suppo...

Страница 60: ... not normally discharge according to error condition and the voltage may remain Be sure to discharge the capacitor NOTE The electrolytic capacitor has a large capacity Therefore it is very dangerous to short circuit between electrodes with screwdrivers for discharge because big spark generates 4 Perform work item 1 of 5 Take off screws fixing the main unit and the inverter box Wiring port side ST1...

Страница 61: ...ase thermo 2P Blue Note 1 Note 1 For connectors unlock the lock of the housing section and then remove connectors Note 2 It is not provided for a cooling only model 3 Remove the inverter box Metal sheet 4 Remove the control P C board assembly from P C board support Remove heat sink and control P C board assembly as they are screwed Note3 Remove 4 hooking claws of P C board support and remove the h...

Страница 62: ...kwise Turn it counterclockwise to tighten it 3 Remove the propeller fan 4 Disconnect connector for fan motor from the inverter 5 Take off the fixing screws 2 pcs while supporting the fan motor so that it does not fall Caution when assembling fan motor Tighten the flange nut with torque 4 9 Nm 50kgf cm Remarks Flange nut Loosen the nut by turning clockwise Propeller fan Fan motor ...

Страница 63: ...oing so a malfunction may be caused 8 Take off screws of the bottom plate and the heat exchanger ST1T Ø4 8 1 pc 9 Take off the fixing screws of the bottom plate and the valve clamping plate ST1T Ø4 8 2 pcs 10 Pull out the refrigerating cycle with the heat exchanger 11 Take off compressor bolts fixing the compressor to the bottom plate 3 pcs Remarks Reactor 1 Perform woks of item 1 of and 1 of 2 Ta...

Страница 64: ...nd 1 of REQUIREMENT Perform works on a corrugated card board cloth etc to prevent flaw on the product 2 Remove the front cabinet and then put it downward on the floor 3 Take off the hooking claw of the fan guard by pushing with minus screw driver etc 2 Attachment 1 Insert the hooking claw of the fan guard into hole of the front cabinet Fix claw while pushing the hooking claws 10 positions with han...

Страница 65: ... cables from the cord clamp and terminals 4 Remove the ceiling plate Hex screw Ø4 10 6 pcs 2 Attachment 1 Attach the ceiling plate Hex screw Ø4 10 6 pcs 2 Connect the power supply cable and indoor outdoor connecting cable to the terminal and then fix them with cord clamp REQUIREMENT Using bundling band sold at a market be sure to fix the power cables and indoor outdoor connecting cables along the ...

Страница 66: ... the end plate of the heat exchanger and then fix it with screw ST1T Ø4 8 1 pc 2 Attach the removed screws to the original positions Remarks Side cabinet 1 Perform work of item 1 of 2 Take off screw fixing the inverter and the side cabinet ST1T Ø4 8 1 pc 3 Take off screws of the side cabinet and the valve support plate ST1T Ø4 8 2 pcs 4 Take off screws of the side cabinet and the piping panel Rear...

Страница 67: ...Note 1 Note 1 Unlock the lock of housing part and then disconnect the connectors 3 Cut the tie lap fixing various lead wires to the inverter assembly 4 Remove the rubber sheet and noise proof plate upper 5 Remove terminal cover of the compressor and Comp lead wire 6 Pull upward the hook Rear left with the partition board as if removing it Caution when attaching inverter assembly When installing th...

Страница 68: ...e 1 CN700 4 way valve 3P Yellow Note 1 CN702 PMV coil 6P White Note 1 CN800 Connection with IPDU P C board 5P Red Note 1 CN01 Connection with IPDU P C board 5P Red Note 1 CN02 Indoor outdoor connecting terminal block 3P Black Note 1 CN03 Connection with IPDU P C board 3P White Note 1 CN04 Connection with IPDU P C board 2P White Note 1 Note 1 Unlock the lock of housing part and then disconnect the ...

Страница 69: ...Red CN02 Connection with power supply terminal block White CN03 Connection with power supply terminal block Black CN07 Earth wire Black CN14 Connection with reactor White CN15 Connection with reactor White CN09 Connection with compressor Red CN10 Connection with compressor White CN11 Connection with compressor Black Note 1 Unlock lock of the housing part and then disconnect the connectors 4 Remove...

Страница 70: ...crews 4 pcs while supporting the fan motor so that it does not fall Caution when assembling fan motor Tighten the flange nut with torque 4 9Nm 50kgf cm Pay attention that the reactor at rear side of the inverter does not come to contact with the fan motor lead REQUIREMENT Using bundling band sold at a market be sure to fix the fan motor lead wires to the motor base so that they do not come to cont...

Страница 71: ...and then remove case thermo of the com pressor 8 Remove the sensor and pipe cover fixed to the discharge pipe 9 Using a burner remove pipe connected to the compressor NOTE Pay attention to that flame does not involve 4 way valve or PMV If doing so a malfunction may be caused 10 Pull out the discharge pipe and the suction pipe of the refrigerating cycle upward 11 Take off the compressor bolts fixin...

Страница 72: ...pper side of the fan guard into square hole of the dis charge port cabinet and then insert the hooking claw Fix hooking claws while pushing them 5 positions with hands REQUIREMENT Check that all the hooking claws are fixed to the specified positions 2 Attach the fan guard by hooking claws 3 positions at upper side of the bell mouth to the square holes of the dis charge port cabinet 3 After attachm...

Страница 73: ...IA SM801AT E 16 43146670 Valve Packed 15 9 SM801AT E 17 43147196 Bonnet 1 4 IN SM561AT E Location Part Description No 18 43147195 Bonnet 1 2 IN SM561AT E 19 43194029 Bonnet SM801AT E 20 43047401 Bonnet 3 8 IN SM801AT E 21 43046439 Valve 4 Way STF 0108Z SM561AT E 22 43146619 Valve 4 Way STF 0213Z SM801AT E 23 43046348 Coil Solenoid 24 43146662 Valve Pulse Modulating 25 43046411 Coil PMV CAM MD12TF ...

Страница 74: ...3050412 Sensor TE 703 43050413 Sensor TS 704 43050415 Sensor TO 705 43062228 Base P C Board Location Part Description No 706 4306A116 Terminal Block 6P 707 4316V254 P C Board Ass y SW MCC 1530 708 4316V268 P C Board Ass y MCC 5009 705 708 704 703 702 701 707 706 ...

Страница 75: ...r Ass y DA420A3F 21M 16 43050407 Thermostat Bimetal 17 43063317 Holder Thermostat 18 43100248 Base Ass y 19 43197157 Bolt Compressor Location Part Description No 20 43149324 Rubber Cushion EPDM 21 43146619 Valve 4 WAY STF 0213Z 22 43146611 Coil Solenoid VHV 01AJ502E1 23 43146634 Valve Pulse Modulating 24 43146663 Coil PMV UKV U048E 25 43148170 Accumulator Ass y 26 43146584 Valve Packed 9 52 DIA 27...

Страница 76: ...or TC F6 703 43060750 Terminal Block 3P 704 43150259 Rectifier 705 43160502 Terminal Block Location Part Description No 706 4316V255 P C Board Ass y CDB MCC 1531 707 4316V264 P C Board Ass y IPDU MCC 1438 708 43050398 Sensor TG F4 TO TD TS TE 702 704 708 703 705 707 701 706 ...

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