Mitsubishi Electric SU-1.6NR Page 1 Technical & Service Manual Download

Page: 1 / 60

TECHNICAL & SERVICE MANUAL

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS

CONTENTS

1. TECHNICAL CHANGES ···········································2

2. COMBINATION OF INDOOR OUTDOOR UNITS·····2

3. PART NAMES AND FUNCTIONS·····························3

4. SPECIFICATIONS ·····················································4

5. DATA··········································································7

6. OUTLINES AND DIMENSIONS ······························10

7. WIRING DIAGRAM ·················································13

8. REFRIGERANT SYSTEM DIAGRAM ···························19

9. TROUBLESHOOTING ············································28

10. DISASSEMBLY PROCEDURE ·······························32

11. PARTS LIST ····························································48

No. OC282

REVISED EDITION-B

OUTDOOR UNIT

Outdoor unit
[Model names]

[Service Ref.]

SUH-1VR

SUH-1VR.TH

SUH-1.6VR

SUH-1.6VR.TH

SUH-1.6VR2

SUH-1.6VR2.TH

SUH-2VR

SUH-2VR.TH

SUH-2VR

.TH

SUH-2VR

.TH

SUH-2.5VR

SUH-2.5VR.TH

SU-1.6NR

SU-1.6NR.TH

SU-2NR

SU-2NR.TH

SU-2.5NR

SU-2.5NR.TH

SU-1VR

SU-1VR.TH

SU-1VR.TH-T

SU-1.6VR

SU-1.6VR.TH

SU-1.6VR.TH-T

SU-1.6VR2

SU-1.6VR2.TH

SU-1.6VR2.TH-T

SU-2VR

SU-2VR.TH

SU-2VR.TH-T

SU-2VR

.TH

SU-2VR

.TH-T

SU-2.5VR

SU-2.5VR.TH

SU-2.5VR.TH-T

• SU-1VR.TH-T, SU-1.6VR2.TH-T and SU-2VR

.TH-T

has been added.

• Instruction of troubleshooting has been added to

pege 29 ans 30.

• Please void

OC282 REVISED EDITION-A

OC282-A--1.qxp 03.1.28 4:29 PM Page 1

Summary of Contents for SU-1.6NR

Page 1: ...B OUTDOOR UNIT Outdoor unit Model names Service Ref SUH 1VR SUH 1VR TH SUH 1 6VR SUH 1 6VR TH SUH 1 6VR2 SUH 1 6VR2 TH SUH 2VR SUH 2VR TH SUH 2VR1 TH SUH 2VR2 TH SUH 2 5VR SUH 2 5VR TH SU 1 6NR SU 1 6NR TH SU 2NR SU 2NR TH SU 2 5NR SU 2 5NR TH SU 1VR SU 1VR TH SU 1VR TH T SU 1 6VR SU 1 6VR TH SU 1 6VR TH T SU 1 6VR2 SU 1 6VR2 TH SU 1 6VR2 TH T SU 2VR SU 2VR TH SU 2VR TH T SU 2VR1 TH SU 2VR1 TH T S...

Page 2: ... TH SL 1AR TH T SL 1 6AR TH T SL 2AR TH T VR VR2 VR NR NR NR VR VR VR VR2 VR VR 1 6 Service Manual No OC281 REVISED EDITION A OC280 REVISED EDITION A Service Ref 2 2 5 2 5 1 1 6 2 2 5 1 VR 2 VR1 2 5 1 6 VR2 1 6 2 VR VR1 VR VR VR 1 Indoor unit SUH TH Heat pump type Outdoor unit Cooling only type SU TH SU TH T VR1 VR2 REVISED EDITION A SUH 2VR1 TH SUH 2VR2 TH OUTDOOR HEAT EXCHANGER has changed RESTR...

Page 3: ...r inlet Air outlet SUH 1VR TH SUH 1 6VR TH SUH 2VR TH SUH 2 5VR TH SUH 1 6VR2 TH SUH 2VR1 TH SUH 2VR2 TH SU 1 6NR TH SU 2NR TH SU 2 5NR TH SU 1VR TH SU 1 6VR TH SU 2VR TH SU 2 5VR TH SU 1 6VR2 TH SU 2VR1 TH SU 1VR TH T SU 1 6VR TH T SU 2VR TH T SU 2 5VR TH T SU 1 6VR2 TH T SU 2VR1 TH T ...

Page 4: ...und level Hi Fan speed Hi Fan speed regulator Refrigerant filling capacity R 22 Refrigerant oil Thermistor Power supply Service Ref W m 3 min CFM mm mm mm kg dB rpm kg R k Compressor Outdoor fan motor Dimensions Width Height Depth RT61 at 0 Weight Special remarks Model Output Winding resistance at 20 Model Winding resistance at 20 Airflow Sound level Hi Fan speed Hi Fan speed regulator Refrigerant...

Page 5: ...n speed Hi Fan speed regulator Refrigerant filling capacity R 22 Refrigerant oil Thermistor SU 1VR TH SU 1VR TH T Single phase 220 240V 50Hz SU 1 6VR TH SU 1 6VR TH T RH 174VGHT 800 C R 3 30 C S 5 80 RA6V23 HC WHT BLK 353 BLK RED 321 28 990 780 540 255 32 45 710 760 0 8 MS 56 O 0 30 RH 247VHAT 1200 C R 2 13 C S 3 91 1 33 18 RA6V40 EE WHT BLK 130 BLK RED 135 37 1310 850 605 290 38 50 780 820 0 9 MS...

Page 6: ... SU 2 5NR TH NH 38NBDT 1700 C R 0 83 C S 1 83 RA6V60 AB 41 1450 61 54 930 2 2 15 MS 32 N 1 O 1 2 WHT BLK 81 BLK YLW 92 YLW RED 102 1 Power supply Service Ref W m 3 min CFM mm mm mm kg dB rpm kg R k Compressor Outdoor fan motor Dimensions Width Height Depth RT61 at 0 Weight Special remarks Model Output Winding resistance at 20 Model Winding resistance at 20 Airflow Sound level Hi Fan speed Hi Fan s...

Page 7: ... 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE SUH 1 6VR TH SUH 1 6VR2 TH 50 SPL dB LINE 50Hz 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 70 NC 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE SUH 2VR TH SUH 2VR1 TH SUH 2VR2 TH 52 SPL dB LINE 50Hz 90 80...

Page 8: ...F HEARING FOR CONTINUOUS NOISE SU 1 6NR TH 51 SPL dB LINE 60Hz 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 70 NC 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE SU 1 6VR TH SU 1 6VR2 TH SU 1 6VR TH T SU 1 6VR2 TH T 50 SPL dB LINE 50Hz 90 80 70 60 50 40 30 20 10 6...

Page 9: ...2 5NR TH Hi Lo NOTCH 54 50 SPL dB LINE 60Hz 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 70 NC 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE SU 2 5VR TH SU 2 5VR TH T Hi Lo NOTCH 53 50 SPL dB LINE 50Hz 1m UNIT MICROPHONE Ambient temperature 35 C Cooling 7 C Heat...

Page 10: ...t pipe flared 9 52 Liquid refrigerant pipe joint Refrigerant pipe flared 6 35 Air out Air in Air in 109 32 110 147 Drainage 3holes 33 If clearance behind the outdoor units only 40B or 50B side A must be fully open 10cm or more 10cm or more 10cm or more Outdoor unit 35cm or more REQUIRED SPACE A 40cm or more SUH 1VR TH SU 1VR TH SU 1VR TH T Unit mm ...

Page 11: ...l Liquid refrigerant pipe joint Refrigerant pipe flare Gas refrigerant pipe joint Refrigerant pipe flare 12 7 SUH 1 6VR 2 TH SU 1 6NR TH SU 1 6VR 2 TH SU 1 6VR 2 TH T 15 88 SUH 2VR TH SU 2 2 5NR TH SU 2 2 5VR TH SU 2 2 5VR TH T 6 35 SUH 1 6 2VR 2 TH SU 1 6 2NR TH SU 1 6 2VR 2 TH SU 1 6 2VR 2 TH T 9 52 SU 2 5NR TH SU 2 5VR TH SU 2 5VR TH T SUH 1 6VR TH SUH 2VR TH SUH 1 6VR2 TH SUH 2VR1 TH SUH 2VR2 ...

Page 12: ...403 553 850 40 60 524 Service panel Refrigerant pipe flared connection 15 88 5 8F Refrigerant pipe flared connection 9 52 3 8F Knock out hole for front piping refrigerant drainage and wiring Knock out hole for right piping refrigerant drainage and wiring R 2 0 R 2 0 60 120 45 53 25 max Knock out holes for power line 2 27 Standard bolt length 65 Front right piping holes detail figures 80 17 42 45 1...

Page 13: ...SSOR CAPACITOR FAN MOTOR CAPACITOR SURGE ABSORBER FASE 2A DC DC CONVERTER NOTE 1 Use copper conductors only For field wiring 2 w shows the terminals with a lock mechanism so they cannot be removed when you pull the lead wire Be sure to pull the lead wire by pushing the locking lever projected part of the terminal with a finger MC MF NR61 RT61 SR61 COMPRESSOR INNER THERMOSTAT FAN MOTOR INNER THERMO...

Page 14: ...INNER THERMOSTAT MC COMPRESSOR INNER THERMOSTAT SR61 RT61 NR61 VARISTOR F C65 SYMBOL NAME NAME C1 DSAR SYMBOL COMPRESSOR CAPACITOR SURGE ABSORBER 1 FAN MOTOR CAPACITOR FUSE 2A TERMINAL BLOCK 52C1 52C COMPRESSOR CONTACTOR 4 WAY VALVE RELAY SOLID STATE RELAY DEFROST THERMISTOR NAME SYMBOL NOTE 1 Use copper conductors only For field wiring 2 Since the indoor and outdoor unit connecting wires have pol...

Page 15: ...RESSOR INNER THERMOSTAT TB TB2 SR61 RT61 NR61 VARISTOR F C2 SYMBOL NAME NAME C1 DSAR SYMBOL COMPRESSOR CAPACITOR SURGE ABSORBER 1 FAN MOTOR CAPACITOR FUSE 2A TERMINAL BLOCK 52C1 THERMAL REED SWITCH 26F1 X1 FAN MOTOR RELAY 52C COMPRESSOR CONTACTOR 4 WAY VALVE RELAY SOLID STATE RELAY DEFROST THERMISTOR NAME SYMBOL NOTE 1 Use copper conductors only For field wiring 2 Since the indoor and outdoor unit...

Page 16: ...ve 2 Pull the wire while pushing the locking lever NAME SYMBOL NAME SYMBOL NAME SYMBOL CR C1 C2 SURGE ABSORBER COMPRESSOR CAPACITOR FAN MOTOR CAPACITOR NOTE 1 Use copper conductors only For field wiring 2 w shows the terminals with a lock mechanism so they cannot be removed when you pull the lead wire Be sure to pull the lead wire by pushing the locking lever projected part of the terminal with a ...

Page 17: ... UNIT CONNECTING W W W TB 220V 60Hz 220V 60Hz THERMAL SWITCH 26C TB2 TERMINAL BLOCK F FUSE 2A CR SURGE ABSORBER TERMINAL BLOCK COMPRESSOR CONTACTOR 52C TB FAN MOTOR INNER THERMOSTAT INNER THERMOSTAT COMPRESSOR MC FAN MOTOR CAPACITOR COMPRESSOR CAPACITOR C2 C1 NAME SYMBOL NAME SYMBOL NAME SYMBOL MF N YLW VLT BLK CR A2 A1 26C BLK BLU ORN BLU X1 26F1 F RED 8 7 BLU RED WHT 52C TB2 RED C2 GRN YLW 2 3 R...

Page 18: ...ED C1 T1 2 T3 6 BLU GRN YLW 2 3 TO INDOOR UNIT CONNECTING N TB 220 240V 50Hz 220 240V 50Hz W W W W W W YLW VLT BLU ORN 1 3 5 X1 BLU X1 26F1 F RED8 7 BLU RED WHT 52C CR TB2 WHT RED A1 A2 6 5 4 3 2 1 YLW C2 MF YLW BLK BLK WHT RED ORN WHT ORN RED L1 1 L3 5 MC R C S BLK RED C1 WHT 52C T1 2 T3 6 BLU GRN YLW 2 3 RED TO INDOOR UNIT CONNECTING N TB 220 240V 50Hz 220 240V 50Hz W W W SU 2 5VR TH SU 2 5VR TH...

Page 19: ... 7 Option with heat insulator Refrigerant pipe Option 6 35 with heat insulator Discharge Pressure Regulator Reversing Outdoor heat exchanger Flared connection Flared connection Stop valve Stop valve with service port 100 Strainer 2 Capillary tube 3 0x 1 4xL580 Capillary tube 3 0x 1 6xL400 Restrictor valve Refrigerant flow in cooling Compressor Accumulator Strainer 1 100 valve Muffler Refrigerant f...

Page 20: ...52 with heat insulator Discharge Pressure Regulator Outdoor heat exchanger Flared connection Defrost thermistor RT61 Flared connection Stop valve Stop valve with service port 100 Strainer Capillary tube 4 0X 2 4XL660 2VR 1 TH 3 0X 2 0XL250 2VR2 TH Capillary tube 3 0X 1 6XL860 X2 Restrictor valve Refrigerant flow in cooling Compressor Accumulator Strainer 1 100 valve Muffler Refrigerant flow in hea...

Page 21: ...ption with heat insulator Refrigerant pipe Option 6 35 with heat insulator Accumulator Dis pressure regulator SU 2NR TH Outdoor heat exchanger Flared connection Flared connection Stop valve Stop valve with service port 100 Strainer Capillary tube 3 0x 1 8xL100 Capillary tube 3 0x 1 8xL550 Refrigerant flow Compressor Refrigerant pipe 12 7 Option with heat insulator Refrigerant pipe Option 6 35 with...

Page 22: ...tor Refrigerant pipe Option 6 35 with heat insulator SU 1VR TH SU 1VR TH T Dis pressure regulator Outdoor heat exchanger Flared connection Flared connection Stop valve Stop valve with service port 100 Strainer Capillary tube 3 0x 2 0xL100 Capillary tube 3 0x 2 0xL600 Refrigerant flow Accumulator Compressor Refrigerant pipe 15 88 Option with heat insulator Refrigerant pipe Option 9 52 with heat ins...

Page 23: ...ith heat insulator Refrigerant pipe Option 6 35 with heat insulator Outdoor heat exchanger Flared connection Flared connection Stop valve Stop valve with service port 100 Strainer Capillary tube 3 0x 2 0xL570 Refrigerant flow Compressor Accumulator Refrigerant pipe 15 88 Option with heat insulator Refrigerant pipe Option 6 35 with heat insulator SU 1 6VR TH SU 1 6VR2 TH SU 1 6VR TH T SU 1 6VR2 TH ...

Page 24: ...ction Stop valve Stop valve with service port 100 Strainer Capillary tube 3 0x 2 0xL100 Capillary tube 3 0x 2 0xL700 Refrigerant flow Accumulator Compressor Refrigerant pipe 15 88 Option with heat insulator Refrigerant pipe Option 9 52 with heat insulator SU 2 5VR TH SU 2 5VR TH T ...

Page 25: ...t Piping size O D mm in Gas Liquid Length m ft A Service Ref Indoor unit SEH 1 6AR TH SEH 1 6AR1 TH SEH 2AR TH SEH 2 5AR TH SE 1 6AR TH SE 1 6AR1 TH SE 1 6AR TH T SE 1 6AR1 TH T SE 2AR TH SE 2AR TH SE 2AR TH T SE 2 5AR TH SE 2 5AR TH T SUH 1 6VR TH SUH 1 6VR2 TH SUH 2VR TH SUH 2VR1 TH SUH 2VR2 TH SUH 2 5VR TH SU 1 6NR TH SU 1 6VR TH SU 1 6VR2 TH SU 1 6VR TH T SU 1 6VR2 TH T SU 2NR TH SU 2VR TH SU ...

Page 26: ... 2VR1 TH SUH 2VR2 TH SU 2VR1 TH SU 2VR1 TH T Indoor unit SLH 1AR TH SLH 1 6AR TH SLH 2AR TH SL 1AR TH SL 1AR TH T SL 1 6AR TH SL 1 6AR TH T SL 2AR TH SL 2AR TH T SUH 1VR TH SUH 1 6VR2 TH SUH 2VR1 TH SUH 2VR2 TH SU 1VR TH SU 1VR TH T SU 1 6VR2 TH SU 1 6VR2 TH T SU 2VR1 TH SU 2VR1 TH T 800 1 400 1 800 800 900 1 600 0 0 0 25 50 15 50 100 30 75 150 45 100 200 60 125 250 75 150 300 90 175 350 105 200 4...

Page 27: ...ve and the vacuum pump to the service port of the stop ball valve Run the vacuum pump Vacuumize for more than 15 minutes Check the vacuum with the gauge manifold valve then close the gauge manifold valve and stop the vacuum pump Leave as it is for one or two minutes Make sure the pointer of the gauge manifold valve remains in the same position Confirm that the pressure gauge show 0 1MPa 79cmHg Aft...

Page 28: ...se 2A 250V Defrost interval time short pin J9 J8 5V DC Defrost interval Defrost termination temperature change Jumper wire JPC and JPE 52C 12V DC 12V DC DEICER P C BOARD Deicer P C board 9 TROUBLESHOOTING 9 1 Test point of P C board SUH 1VR TH SUH 1 6VR TH SUH 1 6VR2 TH SUH 2VR TH SUH 2VR1 TH SUH 2VR2 TH SUH 2 5VR TH ...

Page 29: ...r supply or the connecting wire between the indoor and outdoor units Yes No Deicer P C board is defective Turn off the power supply and turn it on again to operate the unit in heating mode Normal Operation lamp blinks 6 times in a fixed period No Yes Yes No Operation lamp blinks 6 times in a fixed period Measure the resistance of defrost thermistor Check the defrost thermistor Connection is defect...

Page 30: ...its connected properly Yes No Does the contactor operate Yes Is the connector connected properly Contactor is defective Yes No Is the output voltage of contactor correct Connection is defective Check the compressor Yes Contactor is defective No Are the wires connected to the compressor properly Is the connecting wire between the indoor and outdoor units connected properly Fan motor is defective De...

Page 31: ... RED BLK YLW YLW RED 311 381Ω 283 347Ω 1 6VR 1 6VR2 115 141Ω 118 146Ω 2VR 2VR1 2VR2 102 126Ω 98 120Ω 2 5VR 55 68Ω 27 33Ω 55 68Ω 5kΩ 60kΩ Abnormal Abnormal Opened or short circuited 1 VR Normal SU WHT BLK BLK RED BLK YLW 311 381Ω 283 347Ω 1 6 NR VR VR2 115 141Ω 118 146Ω 2 NR VR VR1 102 126Ω 98 120Ω 2 5 NR VR 72 88Ω 90 110Ω 81 99Ω Abnormal Opened or short circuited 1VR Normal SUH C R C S 2 9 3 6Ω 5 ...

Page 32: ...e insides 6 Remove the top panel 7 Remove the cabinet 2 Removing the deicer P C board 1 Remove the service panel and the cabinet 2 Disconnect all the connectors and the terminals on the deicer P C board 3 Remove the deicer P C board SUH 1VR TH Photo 4 Terminal block Deicer P C board Photo 1 Photo 3 Screw for top panel Service panel Screw for service panel Screw for top panel Screws for cabinet Scr...

Page 33: ...binet Refer to 1 2 Remove the relay panel 3 Remove the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect lead wires from the glass terminal of the com pressor 6 Recover gas from the refrigerant circuit 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compressor 10 Remove the compressor NOTE Before ...

Page 34: ...the both side to remove the cabinet 2 Removing the deicer P C board 1 Remove the service panel and the front panel 2 Disconnect all the connectors and the terminals on the deicer P C board 3 Remove the deicer P C board SUH 1 6VR2 TH Photo 1 Photo 3 Photo 2 Screws Screws Service panel Terminal block Compressor contactor Deicer P C board ...

Page 35: ...lead wires from the glass terminal of the com pressor 6 Recover gas from the refrigerant circuit 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compressor 10 Remove the compressor NOTE Before using a burner recover gas from the pipes until the pressure gauge shows 0 kg cm2 0 MPa Use the burner under the condition that ga...

Page 36: ...oth side to remove the cabinet 2 Removing the deicer P C board 1 Remove the service panel and the front panel 2 Disconnect all the connectors and the terminals on the deicer P C board 3 Remove the deicer P C board SUH 2VR1 TH SUH 2VR2 TH Photo 1 Photo 3 Photo 2 Screws Screws Service panel Terminal block Compressor contactor Deicer P C board ...

Page 37: ... the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect lead wires from the glass terminal of the com pressor 6 Recover gas from the refrigerant circuit 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compressor 10 Remove the compressor NOTE Before using a burner recover gas from the pipes until th...

Page 38: ...d you and unhook the catches on the both sides 2 Removing the fan motor 1 Remove the 3 screws of the front panel Open the front panel to a 45 degree angle Then lift it and unhook the 3 catches to remove 2 Remove the propeller fan nut and the propeller fan 3 Remove the 3 screws and the fan motor Disconnect the lead connectors Photo 1 Photo 2 Photo 3 Top panel Service panel Panel cover Front panel C...

Page 39: ...the catches on the right and left sides Lift it to remove 7 Remove the electrical parts box Disconnect the connectors from the high pressure switch crank case heater shell thermo and fan motor lead 8 Remove the 2 screws of the separator and remove it 9 Recover gas from the refrigerant circuit 10 Remove the 2 screws of the heat exchanger and remove it Detach the welded point of pipe 11 Remove the 3...

Page 40: ...move the cabinet 2 Removing the electrical parts 1 Remove the cabinet Refer to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB Compressor contactor 52C SU 1VR TH SU 1VR TH T Photo 4 Terminal block Photo 1 Photo 3 Screws for top panel Service panel Screws for service panel Screws for top panel Screws for cabinet Screws for cabinet Photo 2 Screws for...

Page 41: ...cabinet Refer to 1 2 Remove the relay panel 3 Remove the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect lead wires from the glass terminal of the compressor 6 Recover gas from the refrigerant circuit 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compressor 10 Remove the compressor NOTE Before...

Page 42: ...the electrical parts 1 Remove the cabinet Refer to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB Compressor contactor 52C Fuse F SU 1 6VR2 TH SU 1 6VR2 TH T Photo 1 Photo 3 Photo 2 Screws Screws Service panel Terminal block Outdoor fan capacitor Compressor contactor Fuse Outdoor fan motor connector Compressor capacitor ...

Page 43: ...cabinet Refer to 1 2 Remove the relay panel 3 Remove the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect lead wires from the glass terminal of the compressor 6 Recover gas from the refrigerant circuit 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compressor 10 Remove the compressor NOTE Before...

Page 44: ...t 2 Removing the electrical parts 1 Remove the cabinet Refer to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB Compressor contactor 52C Fuse F SU 2VR1 TH SU 2VR1 TH T Photo 1 Photo 3 Photo 2 Screws Screws Service panel Terminal block Outdoor fan capacitor Compressor contactor Fuse Outdoor fan motor connector ...

Page 45: ...cabinet Refer to 1 2 Remove the relay panel 3 Remove the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect lead wires from the glass terminal of the compressor 6 Recover gas from the refrigerant circuit 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compressor 10 Remove the compressor NOTE Before...

Page 46: ...er to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB TB2 Fan motor relay X1 For SU 2 5NR TH SU 2 5VR TH and SU 2 5VR TH T Contactor 52C Fuse F SU 1 6NR TH SU 2NR TH SU 2 5NR TH SU 1 6VR TH SU 2VR TH SU 2 5VR TH SU 1 6VR TH T SU 2VR TH T SU 2 5VR TH T Photo 1 Photo 3 Photo 2 Screws Screws Service panel Compressor run capacitor Compressor Contactor ...

Page 47: ...t lead wires from the glass terminal of the compressor 6 Recover gas from the refrigerant circuit 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compressor 10 Remove the compressor NOTE Before using a burner recover gas from the pipes until the pressure gauge shows 0 kg cm2 0 MPa Use the burner under the condition that g...

Page 48: ...48 PARTS LIST 11 15 3 4 7 8 5 2 9 14 1 12 13 16 17 21 18 29 27 24 OUTDOOR UNIT STRUCTURAL PARTS SUH 1VR TH SU 1VR TH SU 1VR TH T 30 31 6 11 10 19 22 23 25 26 28 20 ...

Page 49: ...E02 209 374 E02 085 385 E07 042 384 E02 289 310 E02 444 704 E02 440 705 E07 112 933 E02 205 933 E02 069 644 E02 154 642 E02 159 936 E02 134 937 E07 112 936 E02 339 936 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER CABINET GRILLE OUT COMPRESSOR COMPRESSOR RUBBER MOUNT ACCUMULATOR BASE STOP ...

Page 50: ... TH VR2 TH VR TH VR TH T VR2 TH VR2 TH T Price Drawing No SU 1 6 SUH 1 6 E02 141 521 E02 141 232 E07 042 630 E02 141 630 E02 141 501 E02 139 515 E02 140 515 E02 141 301 E02 075 506 E07 042 900 E07 111 900 E02 201 290 E07 113 290 E02 140 290 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 3 1 1 GRILLE OUT CABINET OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER PROPELLER FAN MOTOR SU...

Page 51: ...351 E02 139 310 E02 140 233 E07 054 233 E02 154 642 E07 042 644 E07 042 933 E02 205 933 E07 042 936 E07 113 936 E07 042 937 E02 271 936 E02 140 936 E02 285 936 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ACCUMULATOR ACCUMULATOR STOP VALVE GAS STOP VALVE LIQUID 4 WAY VALVE SOLENOID COIL SERVICE P...

Page 52: ... No SU 2 SUH 2 E02 141 521 E02 141 232 E07 139 630 E02 643 630 E02 138 630 E02 141 501 E02 139 515 E02 138 515 E02 144 301 E02 138 506 E02 007 900 E02 139 290 E02 138 290 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 4 1 1 GRILLE OUT CABINET OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER PROPELLER FAN MOTOR SUPPORT MOTOR SUPPORT OUTDOOR F...

Page 53: ...933 E02 236 933 E07 043 936 E07 049 936 E02 257 936 E07 055 936 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ACCUMULATOR ACCUMULATOR STOP VALVE GAS STOP VALVE LIQUID 4 WAY VALVE SOLENOID COIL SERVICE PANEL 4 WAY VALVE COMPRESSOR CAPACITOR COMPRESS...

Page 54: ...54 11 1 5 6 7 2 4 9 27 16 15 17 31 33 34 35 38 12 28 3 8 10 32 30 26 25 29 22 23 24 21 18 19 13 14 20 36 37 OUTDOOR UNIT STRUCTURAL PARTS SUH 2 5VR TH 3 ...

Page 55: ... ABSORBER 2 SURGE ABSORBER 3 COMPRESSOR RUN CAPACITOR VARISTOR THERMAL REED SWITCH DIS PRESSURE REGULATOR STRAINER 2 STRAINER 3 Drawing No 4RUBBER F TB MF TB2 DSAR MC RT61 21S4 C2 52C1 52C X1 CR CZ C1 NR61 26F1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 250V 2A NH 47VMDT 3 8 5 8 4 0X 2 0XL410 3 0 440VAC S N18EX 50 440VAC E02 214 249 E02 214 232 E07 001 009 E0...

Page 56: ...56 OUTDOOR UNIT STRUCTURAL PARTS SU 2 5VR TH SU 2 5VR TH T 24 20 21 14 13 4 5 8 9 10 12 6 3 1 2 18 7 11 15 16 17 19 23 22 ...

Page 57: ... 141 245 E02 288 343 E02 095 382 E07 001 241 E02 209 374 E07 056 374 E02 138 351 E02 082 353 E07 012 340 E07 042 384 E02 140 233 E02 069 644 E07 059 933 E02 138 936 E02 147 937 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 GRILLE OUT CABINET OUTDOOR HEAT EXCHANGER PROPELLER FAN MOTOR SUPPORT FAN MOTOR THERMAL REED SWITCH COMPRESSOR RUBBER MOUNT COMPRESSOR BASE ACCUMULATOR STOP VALVE GAS ...

Page 58: ...41 301 E02 144 301 E02 147 301 E02 229 381 E02 075 506 E02 138 506 E02 271 900 E07 058 900 E02 177 900 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 3 1 GRILLE OUT CABINET OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER PROPELLER FAN MOTOR SUPPORT MOTOR SUPPORT MOTOR SUPPORT FAN MOTOR FAN MOTOR FAN MOTOR THERMAL REED SWITCH COMPRESSOR RUBBER MOUNT COMPRESSOR RUBBER MOUNT COMPR...

Page 59: ... E07 057 340 E07 058 340 E07 042 384 E07 054 233 E02 140 233 E02 069 644 E07 057 933 E07 059 933 E07 057 936 E02 147 937 E02 271 936 E02 138 936 E02 283 936 E07 057 305 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 BASE BASE BASE ACCUMULATOR STOP VALVE GAS STOP VALVE GAS STOP VALVE LIQUID STOP VALVE LIQUID SERVICE PANEL FAN MOTOR ...

Page 60: ...CTRIC ENGINEERING CO LTD Distributed in Jan 2003 No OC282 REVISED EDITION B PDF 341 Distributed in Sep 2002 No OC282 REVISED EDITION A PDF 462 Reprinted in Jul 2002 No OC282 10 Distributed in May 2002 No OC282 PDF 707 Made in Japan New publication effective Jan 2003 Specifications subject to change without notice ...

Search results

Summary of Contents for SU-1.6NR

Reviews:

Related manuals for SU-1.6NR

Brands by name

Popular brands

Mitsubishi Electric SU-1.6NR, Technical & Service Manual

Search results

Summary of Contents for SU-1.6NR

Reviews:

Related manuals for SU-1.6NR

Brands by name

Popular brands