TECHNICAL CHANGES (REVISED EDITION-A) SUH-2VR SUH-2VR OUTDOOR HEAT EXCHANGER has changed. RESTRICTOR VALVE has changed. CAPILLARY TUBE has changed. ({4.0X{2.4XL660) ({3.0X{2.0XL250) COMBINATION OF INDOOR OUTDOOR UNITS Outdoor unit Heat pump type Cooling only type Indoor unit SUH- • .TH SU- • .TH SU- •...
OUTLINES AND DIMENSIONS SUH-1VR.TH Unit: mm SU-1VR.TH SU-1VR.TH-T REQUIRED SPACE Outdoor unit Air in Air in Drainage 3holes [33 Air out Service panel Liquid refrigerant pipe joint Refrigerant pipe (flared) [6.35 Gas refrigerant pipe joint Refrigerant pipe (flared) [9.52...
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SUH-1.6VR.TH SUH-2VR.TH SUH-1.6VR2.TH SUH-2VR SUH-2VR SU-1.6NR.TH SU-2NR.TH SU-2.5NR.TH SU-1.6VR.TH SU-2VR.TH SU-2.5VR.TH SU-1.6VR2.TH SU-2VR SU-1.6VR.TH-T SU-2VR.TH-T SU-2.5VR.TH-T SU-1.6VR2.TH-T SU-2VR .TH-T Unit: mm If the right/left sides or back side is vacant,the Drainage front has only to be 50cm 3holes 16.2 unobstructed.
WIRING DIAGRAM SUH-1VR.TH 21S4 RT61 CN611 CN721 CN720 CN730 12VDC SR61 TAB21 220-240V~ 2 TRANS CN711 TAB20 DEICER P.C. BOARD WHT NO GRN/YLW SYMBOL NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CAPACITOR COMPRESSOR (INNER THERMOSTAT) TERMINAL BLOCK FAN MOTOR CAPACITOR FAN MOTOR (INNER THERMOSTAT) 4-WAY VALVE RELAY DSAR SURGE ABSORBER...
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SUH-1.6VR.TH SUH-2VR.TH SUH-1.6VR2.TH SUH-2VR SUH-2VR RT61 21S4 CN711 1 2 3 CN661 CN721 CN730 12VDC IC881 220-240V TRANS TAB20 DEICER 52C1 P.C. BOARD 52C1 L1/1 T1/2 L3/5 T3/6 SYMBOL NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CAPACITOR RT61 DEFROST THERMISTOR IC881 DC/DC CONVERTER...
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SUH-2.5VR.TH RT61 21S4 CN711 1 2 3 CN661 CN721 CN730 12VDC IC881 220-240V~ 26F1 TRANS TAB20 DEICER 52C1 P.C. BOARD 52C1 L1/1 T1/2 L3/5 T3/6 SYMBOL NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CAPACITOR RT61 DEFROST THERMISTOR FAN MOTOR RELAY THERMAL REED SWITCH FAN MOTOR CAPACITOR SR61 SOLID STATE RELAY...
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SU-1VR.TH SU-1VR.TH-T 220-240V~ 220-240V~ L1/1 T1/2 L3/5 T3/6 SYMBOL NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CONTACTOR SURGE ABSORBER COMPRESSOR (INNER THERMOSTAT) COMPRESSOR CAPACITOR FAN MOTOR (INNER THERMOSTAT) FAN MOTOR CAPACITOR TERMINAL BLOCK sleeve NOTE :1. Use copper conductors only (For field wiring). 2.
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SU-1.6NR.TH SU-2NR.TH 220V, 60Hz 220V, 60Hz L1/1 T1/2 L3/5 T3/6 SYMBOL NAME SYMBOL NAME SYMBOL NAME COMPRESSOR SURGE ABSORBER COMPRESSOR CONTACTOR (INNER THERMOSTAT) FAN MOTOR COMPRESSOR CAPACITOR THERMAL SWITCH (INNER THERMOSTAT) FAN MOTOR CAPACITOR TERMINAL BLOCK FUSE(2A) TERMINAL BLOCK SU-2.5NR.TH 220V, 60Hz RED 8 220V, 60Hz...
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SU-1.6VR.TH SU-1.6VR2.TH 220-240V,50Hz SU-2VR.TH SU-2VR 220-240V,50Hz SU-1.6VR.TH-T SU-1.6VR2.TH-T SU-2VR.TH-T SU-2VR .TH-T L1/1 T1/2 L3/5 T3/6 SYMBOL NAME SYMBOL NAME SYMBOL NAME COMPRESSOR SURGE ABSORBER COMPRESSOR CONTACTOR (INNER THERMOSTAT) FAN MOTOR COMPRESSOR CAPACITOR (INNER THERMOSTAT) FAN MOTOR CAPACITOR TERMINAL BLOCK FUSE(2A) TERMINAL BLOCK SU-2.5VR.TH 220-240V,50Hz...
EVACUATION PROCEDURES Connect the refrigerant pipes (both the liquid and gas pipes) between the indoor and the outdoor units. Remove the service port cap of the stop/ball valve. (The stop/ball valve will not work in its initial state fresh out of the factory (totally closed with cap on).) Connect the gauge manifold valve and the vacuum pump to the service port of the stop/ball valve .
TROUBLESHOOTING 9-1. Test point of P.C. board •Deicer P.C. board SUH-1VR.TH SUH-1.6VR.TH SUH-1.6VR2.TH SUH-2VR.TH SUH-2VR SUH-2VR SUH-2.5VR.TH R601 5~10V DC INPUT Outdoor fan motor Solenoid coil 220-240V AC 220-240V AC 220-240V AC Defrost thermistor(RT61) DEICER P.C. BOARD Fuse 2A/250V Defrost interval...
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Check of deicer P.C. board and outdoor fan motor SUH-1VR.TH SUH-1.6VR.TH Operation lamp blinks once in a fixed period. SUH-1.6VR2.TH SUH-2VR.TH SUH-2VR Error was found in the signal transmitted or received between the indoor and outdoor units. SUH-2VR SUH-2.5VR.TH Is the connecting wire between...
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From the preceding page. Indoor unit operates, while outdoor unit does not. Compressor does not operate. Fan motor does not operate. Is the connecting wire between the Is the connecting wire between the indoor and outdoor units connected indoor and outdoor units connected properly? properly? Connection is defective.
9-2. Trouble criterion of main parts SUH-1VR.TH SUH-1.6VR.TH SUH-2VR.TH SUH-2.5VR.TH SUH-1.6VR2.TH SUH-2VR SUH-2VR 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-2VR SU-1VR.TH-T SU-1.6VR.TH-T SU-2VR.TH-T SU-2.5VR.TH-T SU-1.6VR2.TH-T SU-2VR .TH-T Part name Check method and criterion Figure Measure the resistance with a tester.
DISASSEMBLY PROCEDURE SUH-1VR.TH OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws for the top panel. Screws for front panel and motor support (2) Remove the screw for the service panel. (3) Remove the screws for the cabinet. (4) Remove the screws for the front panel and motor support.
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OPERATING PROCEDURE PHOTOS 3. Removing the propeller fan and the outdoor fan Photo 5 motor Lead clamps (1) Remove the cabinet. (Refer to 1.) Set screws for (2) Remove the propeller fan nut. outdoor fan motor Outdoor (3) Remove the propeller fan. fan motor Propeller fan connector...
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SUH-1.6VR2.TH OPERATING PROCEDURE PHOTOS 1. Removing the front panel Photo 1 (1) Remove the screws of the front panel. (2) Hold the bottom of the front panel on the both side to remove the cabinet. Photo 2 Screws Service panel Screws 2.
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PHOTOS OPERATING PROCEDURE Photo 4 3. Removing the outdoor fan motor Set screws for (1) Remove the front panel. (Refer to 1) outdoor fan motor propeller fan (2) Unconnect the connector remove the clamp of fan motor lead wire. (3) Remove the propeller nut and remove the propeller fan. (4) Remove screws fixing the fan motor.
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SUH-2VR SUH-2VR OPERATING PROCEDURE PHOTOS 1. Removing the front panel Photo 1 (1) Remove the screws of the front panel. (2) Hold the bottom of the front panel on the both side to remove the cabinet. Photo 2 Screws Service panel Screws 2.
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PHOTOS OPERATING PROCEDURE Photo 4 3. Removing the outdoor fan motor Set screws for (1) Remove the front panel. (Refer to 1) outdoor fan motor (2) Unconnect the connector remove the clamp of fan motor propeller fan lead wire. (3) Remove the propeller nut and remove the propeller fan. (4) Remove screws fixing the fan motor.
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SUH-2.5VR.TH OPERATING PROCEDURE PHOTOS 1. Removing the electrical parts Photo 1 ( 1 ) Remove the 5 screws and the top panel. ( 3 screws in Screws front and 2 screws in rear ) ( 2 ) Remove the screw of the cover panel. To remove the Top panel cover panel, pull it toward you and unhook the catch- es from the side panel.
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OPERATING PROCEDURE PHOTOS 3. Removing the heat exchanger and the compressor Photo 4 ( 1 ) Remove the rear panel (2 screws in front, 1 screw on Screws the side, 3 screws in the rear). Remove the valve bed, and open the rear panel to the rear to remove. NOTE : All panels are fixed by catches, and must be removed by shifting up and down.
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SU-1VR.TH SU-1VR.TH-T OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws for the top panel. Screws for front panel and motor support (2) Remove the screw for the service panel. (3) Remove the screws for the cabinet. (4) Remove the screws for the front panel and motor support.
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OPERATING PROCEDURE PHOTOS 3. Removing the propeller fan and the outdoor fan Photo 5 motor Lead clamp (1) Remove the cabinet. (Refer to 1.) Set screws for (2) Remove the propeller fan nut. outdoor fan motor Outdoor fan motor (3) Remove the propeller fan. connector Propeller fan NOTE : Loose the propeller fan in the rotating direction for...
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SU-1.6VR2.TH SU-1.6VR2.TH-T OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws of the cabinet. (2) Hold the bottom of the cabinet on the both side to remove the cabinet. Photo 2 Screws Service panel Screws 2. Removing the electrical parts (1) Remove the cabinet.(Refer to 1) Photo 3 (2) Remove the following parts.
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OPERATING PROCEDURE PHOTOS 3. Removing the propeller fan and the outdoor fan Photo 4 motor Lead clamp (1) Remove the cabinet. (Refer to 1.) Set screws for (2) Remove the propeller fan nut. outdoor fan motor Outdoor (3) Remove the propeller fan. fan motor Propeller fan NOTE : Loose the propeller fan in the rotating direction for...
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SU-2VR SU-2VR .TH-T OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws of the cabinet. (2) Hold the bottom of the cabinet on the both side to remove the cabinet. Photo 2 Screws Service panel Screws 2.
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OPERATING PROCEDURE PHOTOS 3. Removing the propeller fan and the outdoor fan Photo 4 motor Lead clamp (1) Remove the cabinet. (Refer to 1.) Set screws for (2) Remove the propeller fan nut. outdoor fan motor Outdoor (3) Remove the propeller fan. fan motor Propeller fan NOTE : Loose the propeller fan in the rotating direction for...
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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 OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws of the cabinet. (2) Hold the bottom of the cabinet on the both side to remove the cabinet. Photo 2 Screws Service...
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OPERATING PROCEDURE PHOTOS Photo 4 3. Removing the outdoor fan motor Fan motor cable Connector (1) Remove the cabinet. (Refer to 1) (2) Unconnect the connector remove the clamp of fan motor lead wire. (3) Remove the propeller nut and remove the propeller. (4) Remove screws fixing the fan motor.
PARTS LIST OUTDOOR UNIT STRUCTURAL PARTS SUH-1VR.TH SU-1VR.TH SU-1VR.TH-T...
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Part numbers that are circled are not shown in the illustration. Price Q'ty/set Wiring Recom- Parts No. Specification Remarks Parts name SUH-1 SU-1 Diagram mended Unit Amount (Drawing No.) VR.TH Symbol Q'ty VR.TH VR.TH-T E02 440 630 OUTDOOR HEAT EXCHANGER E02 336 630 OUTDOOR HEAT EXCHANGER E02 336 232...
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OUTDOOR UNIT STRUCTURAL PARTS SUH-1.6VR.TH SU-1.6VR.TH SU-1.6VR.TH-T SUH-1.6VR2.TH SU-1.6VR2.TH SU-1.6VR2.TH-T 25 24 Price Q'ty/set Wiring Recom- Parts No. Specification Remarks Parts name SUH-1.6 SU-1.6 Diagram mended Unit Amount (Drawing No.) VR.TH VR2.TH Symbol Q'ty VR.TH VR2.TH VR.TH-T VR2.TH-T E02 141 521...
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Part numbers that are circled are not shown in the illustration. Price Q'ty/set Wiring Recom- Parts No. Specification Remarks Parts name SUH-1.6 SU-1.6 Diagram mended Unit Amount (Drawing No.) VR.TH VR2.TH Symbol Q'ty VR.TH VR2.TH VR.TH-T VR2.TH-T E02 134 932 ACCUMULATOR E07 113 932 ACCUMULATOR...
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OUTDOOR UNIT STRUCTURAL PARTS SUH-2VR.TH SU-2VR.TH SU-2VR.TH-T SUH-2VR SU-2VR SU-2VR .TH-T SUH-2VR 25 24 Price Q'ty/set Wiring Recom- Parts No. Specification Remarks Parts name SUH-2 SU-2 Diagram mended Unit Amount (Drawing No.) VR.TH Symbol Q'ty VR.TH VR .TH VR VR.TH-T .TH-T E02 141 521 GRILLE (OUT)
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Part numbers that are circled are not shown in the illustration. Price Q'ty/set Wiring Recom- Parts No. Specification Remarks Parts name SUH-2 SU-2 Diagram mended Unit Amount (Drawing No.) VR.TH Symbol Q'ty VR.TH VR .TH VR VR.TH-T .TH-T E02 258 932 ACCUMULATOR E07 058 932 ACCUMULATOR...
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OUTDOOR UNIT STRUCTURAL PARTS SUH-2.5VR.TH...
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Part number that are circled is not shown in the illustration. Price Wiring Recom- Q'ty/set Parts No. Specification Remarks Parts name Diagram mended Unit Amount (Drawing No.) Symbol Q'ty SUH-2.5VR.TH E02 214 249 LEFT SIDE PANEL E02 214 232 FRONT PANEL E07 001 009 HANDEL E02 214 521...
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OUTDOOR UNIT STRUCTURAL PARTS SU-2.5VR.TH SU-2.5VR.TH-T 9 10...
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Part number that are circled is not shown in the illustration. Price Q'ty/set Wiring Recom- Parts No. Specification Remarks Parts name Diagram mended SU-2.5VR.TH Unit Amount (Drawing No.) SU-2.5VR.TH-T Symbol Q'ty E02 141 521 GRILLE(OUT) E02 141 232 CABINET E02 147 630 OUTDOOR HEAT EXCHANGER E02 141 501 PROPELLER FAN...
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OUTDOOR UNIT STRUCTURAL PARTS SU-1.6NR.TH SU-2NR.TH SU-2.5NR.TH 9 10 Price Q'ty/set Wiring Recom- Parts No. Specification Remarks Parts name SU-1.6 SU-2 SU-2.5 Diagram mended Unit Amount (Drawing No.) Symbol Q'ty NR.TH E02 141 521 GRILLE(OUT) E02 141 232 CABINET E02 141 630 OUTDOOR HEAT EXCHANGER E02 138 630 OUTDOOR HEAT EXCHANGER...
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Part number that are circled is not shown in the illustration. Price Q'ty/set Wiring Recom- Parts No. Parts name Specification Remarks SU-1.6 SU-2 SU-2.5 Diagram mended Unit Amount (Drawing No.) Symbol Q'ty NR.TH E02 140 290 BASE E02 138 290 BASE E02 176 290 BASE...
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HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN CCopyright 2002 MITSUBISHI ELECTRIC 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 New publication, effective Jan.