Specifications

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TECHNICAL MANUAL

Manual No.'10•SRK-T-100

INVERTER WALL MOUNTED TYPE

RESIDENTIAL AIR-CONDITIONERS

(Split system, air to air heat pump type)

SRK25ZJP-S

SRK35ZJP-S

SRK50ZJP-S

Summary of content (59 pages)

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Manual No.
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'10 • SRK-T-099 '10 • SRK-T-100 CONTENTS 1. SPECIFICATIONS ........................................................................................ 2. EXTERIOR DIMENSIONS ............................................................................ (1) Indoor units .......................................................................................... 3 6 6 (2) Outdoor units ....................................................................................... (3) Wireless remote controller .........
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'10 • SRK-T-099 '10 • SRK-T-100 (8) Phenomenon observed after shortcircuit, wire breakage on sensor ......... 53 (9) Checking the indoor electrical equipment ........................................... 53 (10) How to make sure of wireless remote controller .................................. 54 (11) Outdoor unit inspection points ..............................................................
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'10 • SRK-T-100 1.
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'10 • SRK-T-100 Adapted to RoHS directive SRK35ZJP-S Model Item Cooling capacity (1) Heating capacity (1) Power supply W W Power consumption Running current Cooling Heating Cooling Heating kW A Inrush current Operation data (1) Cooling Heating Sound level Cooling Power level Noise level Sound level Heating Power level Exterior dimensions (Height x Width x Depth) Exterior appearance (Munsell color) Net weight Compressor type & Q'ty Motor (Starting method) Refrigerant oil Refrigerant Refrigerant (3) e
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'10 • SRK-T-100 Adapted to RoHS directive SRK50ZJP-S Model Item Cooling capacity (1) Heating capacity (1) Power supply W W Power consumption Running current Cooling Heating Cooling Heating kW A Inrush current Operation data (1) Cooling Heating Sound level Cooling Power level Noise level Sound level Heating Power level Exterior dimensions (Height x Width x Depth) Exterior appearance (Munsell color) Net weight Compressor type & Q'ty Motor (Starting method) Refrigerant oil Refrigerant Refrigerant (3) e
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45 45 Content Symbol 27 790 224 3 A Gas piping B C D E F G Liquid piping Hole on wall for right rear piping Hole on wall for left rear piping Drain hose Outlet for wiring Outlet for piping㧔on both side㧕 Model 25,35 Ǿ9.52㧔3㧛8"㧕㧔Flare㧕 Model 50 Ǿ12.7㧔1㧛2"㧕㧔Flare㧕 Ǿ6.35㧔1㧛4"㧕㧔Flare㧕㧔Ǿ65㧕㧔Ǿ65㧕 VP16 Outlet for down piping 㧔Refer to the above view㧕 9 60 268 G Terminal block 45 (1) Indoor units 60 Models SRK25ZJP-S, 35ZJP-S, 50ZJP-S 60 2. EXTERIOR DIMENSIONS 788 17.5 F - 450 206.
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12 351.6 14.8 69.4 312.5 290 24.3 D 63.4 Notes 㧔1㧕 It must not be surrounded by walls on the four sides. 㧔2㧕 The unit must be fixed with anchor bolts. An anchor bolt must not protrude more the 15mm. 㧔3㧕 Where the unit is subject to strong winds, lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction. 㧔4㧕 Leave 1m or more space above the unit. 㧔5㧕 A wall in front of the blower outlet must not exceed the units height.
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A B C D E 520.6 φ12.7（1／2"）（Flare） φ6.35（1／4"）（Flare） φ20 × 5places M10 × 4places Notes （1） It must not be surrounded by walls on the four sides. （2） The unit must be fixed with anchor bolts. An anchor bolt must not protrude more the 15mm. （3） Where the unit is subject to strong winds, lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction. （4） Leave 1m or more space above the unit. （5） A wall in front of the blower outlet must not exceed the units height.
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'10 • SRK-T-100 (3) Wireless remote controller 150 Unit: mm 60 17.
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POWER SOURCE ～220／230／240V 50Hz M Item CNE-CNU FM SM HD ThI Th2 DS F T Va BR LB HEAT EXCHANGER Y／G RD BK WH Y BL CONTROL BOX 1 3 4 5 6 CNM CNU N WH U DS Va F 52C-4 Description Connector Fan motor Flap motor Humidity sensor Room temp. sensor Heat exch. sensor Diode stack Fuse Terminal block Varistor BR 250V 3.
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SIGNAL WIRE 1 2 N 3 ] POWER SOURCE ～220／230／240V 50Hz POWER TRANSISTOR （WH）S.IN （Y／G） t゜（BK）R.
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TO INDOOR UNIT [ POWER WIRES SIGNAL WIRE 1 2 N 3 POWER SOURCE ～220／230／240V 50Hz ] 1 2 FUSE 250V 20A N F8 RO （WH）S IN （Y／G） G1 S-1 POWER TRANSISTOR T2 （BK）R IN SO 3 （OR）（Y） PWB ASSY （MAIN） PWB ASSY （SUB） T1 TERMINAL BLOCK T （BK） R F2 250V 20A ACTIVE FILTER UNIT （WH） S + + 250V 20A + （WH） S-2 P NU NV NW U V W U （RD） V （WH） W （BK） M Model SRC50ZJP-S L 3～ CM （Y／G） CN20S CNMAIN （BK） CNSUB F3 250V 1A F1 （RD） C-2 - SWITCHING POWER CIRCUIT 12 - CNTH t゜ t゜
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'10 • SRK-T-100 4. NOISE LEVEL Model SRK25ZJP-S Condition (Indoor Unit) Model SRK25ZJP-S Cooling 36 dB(A) Noise Level Heating 35 dB(A) ISO-T1,JIS C9612 × ...... Cooling, Heating 70 70 N70 60 60 Sound Pressure Level (dB) (standard 2×10- 5 Pa ) N60 50 50 N50 40 40 N40 30 30 N30 20 20 N20 10 8000 10 63 125 250 500 1000 2000 Mid Octave Band frequency (Hz) (Outdoor Unit) Model SRC25ZJP-S Cooling 46 dB(A) Noise Level Heating 48 dB(A) × ......
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'10 • SRK-T-100 Model SRK35ZJP-S Condition (Indoor Unit) Model SRK35ZJP-S Cooling 39 dB(A) Noise Level Heating 41 dB(A) ISO-T1,JIS C9612 × ...... Cooling, Heating 70 70 N70 60 60 Sound Pressure Level (dB) (standard 2×10- 5 Pa ) N60 50 50 N50 40 40 N40 30 30 N30 20 20 N20 10 8000 10 63 125 250 500 1000 2000 Mid Octave Band frequency (Hz) (Outdoor Unit) Model SRC35ZJP-S Cooling 49 dB(A) Noise Level Heating 51 dB(A) × ......
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'10 • SRK-T-100 Model SRK50ZJP-S Condition (Indoor Unit) Model SRK50ZJP-S Cooling 47 dB(A) Noise Level Heating 47 dB(A) ISO-T1,JIS C9612 × ...... Cooling, Heating 70 70 N70 60 60 Sound Pressure Level (dB) (standard 2×10- 5 Pa ) N60 50 50 N50 40 40 N40 30 30 N30 20 20 N20 10 8000 10 63 125 250 500 1000 2000 Mid Octave Band frequency (Hz) (Outdoor Unit) Model SRC50ZJP-S Cooling 51 dB(A) Noise Level Heating 53 dB(A) × ......
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'09•SRK-DB-087D '10 • SRK-T-100 55.
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'10 • SRK-T-100 Model SRK50ZJP-S Cooling cycle Indoor unit Room temp. sensor (Th1) Flare connection Heat exchanger sensor (Th2) Gas pipie (φ12.7) Service valve (Gas) Check joint Outdoor air temp. sensor (TH2) Discharge pipe temp. sensor (TH3) Muffler 4way valve Humidity sensor (HD) Heating cycle Outdoor unit Muffler Heat exchanger Heat exchanger Compressor Receiver Liquid pipe (φ6.
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'10 • SRK-T-100 6. RANGE OF USAGE & LIMITATIONS SRK25ZJP-S, 35ZJP-S SRK50ZJP-S + 7 Net capacity = Capacity shown on specification Correction factors as follows. (1) Coefficient of cooling and heating capacity in relation to temperatures Coefficient of cooling & Heating capacity in relation to temperature 1.3 1.2 Cooling 1.1 1.0 Heating 0.9 0.8 0.7 0.6 Heating operation Indoor air D.B. temperature (°C D. B.) Cooling operation Outdoor air D.B. temperature (°C D. B.
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'10 • SRK-T-100 (2) Correction of cooling and heating capacity in relation to one way length of refrigerant piping Piping length [m] 7 10 15 20 25 30 Cooling 1.0 0.99 0.975 0.965 0.95 0.935 Heating 1.0 1.0 1.0 1.0 1.0 1.0 (3) Correction relative to frosting on outdoor heat exchanger during heating Air inlet temperature of outdoor unit in °CWB -15 -10 -9 -7 -5 -3 -1 1 3 5 or more Adjustment coefficient 0.95 0.95 0.94 0.93 0.91 0.88 0.86 0.87 0.92 1.
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'10 • SRK-T-100 7. CAPACITY TABLES Model SRK25ZJP-S Cool Mode Heat Mode Indoor air temp Air flow Outdoor air temp. 21˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 31˚CDB 33˚CDB Air flow indoor air temp outdoor air temp. 16˚CDB 18˚CDB 20˚CDB 22˚CDB 24˚CDB TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC -15˚CWB 1.97 1.93 1.88 1.84 1.80 10 2.82 2.22 2.95 2.19 3.06 2.27 3.11 2.24 3.16 2.21 3.26 2.28 3.34 2.21 -10˚CWB 2.23 2.19 2.16 2.10 2.06 12 2.77 2.20 2.
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8. APPLICATION DATA RKX012A314 INSTALLATION MANUAL WALL TYPE AIR CONDITIONER R410A REFRIGERANT USED • When install the unit, be sure to check whether the selection of installation place, power supply specifications, usage limitation (piping length, height differences between indoor and outdoor units, power supply voltage and etc.) and installation spaces.
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• Ensure that no air enters in the refrigerant circuit when the unit is installed and removed. If air enters in the refrigerant circuit, the pressure in the refrigerant circuit becomes too high, which can cause burst and personal injury. • Do not bundling, winding or processing for the power cord. Or, do not injury due to entrapment, burn or electric shocks. deforming the power plug due to tread it. • Do not perform any change of protective device itself or its setup condition.
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012A314 NDITIONER NT USED any time. ective clothing, m IEC60884-1 the cables o prevent - duction or fire. shed up further 23 - st or water. lation, nit failure or in case of pump before compressor due to e carried out by as water leaks, SELECTION OF INSTALLATION LOCATION (Install at location that meets the following conditions, after getting approval from the customer) Indoor unit ○Where there is no obstructions to the air flow and where the cooled and heated air can be evenly distributed.
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use fire or burst. Outlet L1 L3 100 80 80 80 L4 250 Open 250 Open Model 09, 25 MAX. 15m MAX. 10m Total one way length Vertical height difference Additional refrigerant wrapper away from Model 12, 35 MAX. 15m MAX. 10m Model 18, 50 MAX. 25m MAX. 15m Less than 10m : Not required Not required Less than 15m : Not required More than 10m : 20g/m More than 15m : 20g/m heat exchanger, nse the ambient oisture damage on ying operation) in the air conditioner drain water may ve pressure status.
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INSTA INSTALLATION OF INDOOR UNIT Fixing of Installation of Installation board Relation between setting plate and indoor unit 450 Indoor unit Space for service 50 Installation board 138 Level position (2 locations) 450 133.5 102.5 585 Space for service 100 7.5 43.2 39.3 102.5 Standard hole 202 450 206.5 Use of bolt anchor Nut (M6) Bolt (M6×12) 53.5 Piping for Gas 380.6 Piping for Liquid 448.6 Piping hole (ø65) Drain hose 520 (ø16) - Piping for Liquid Model 09~18, 25~50 : ø6.
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N R 4or5 G and outdoor connections. ④ Fix the connecting wire by wiring clamp. ⑤ Attach the lid (R). 1.5 ● Matters Installing the support of piping Shaping of pipings [Top view] Taping of the exterior Conne Polychloroprene rubber conductors insulation Stranded core Number of conductors One conductor of the cable is the earth conductor (yellow/green) Section of copper wire (mm2) Indoor Lid (R) of special notice when piping from left or central/rear of the unit.
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INSTALLATION OF THE OUTDOOR UNIT Fixing of outdoor or unit ○Perform wiring, making wire terminal numbers conform to terminal numbers of indoor unit terminal block. ○When installing the unit at a higher place or where it could be toppled by strong winds, secure the unit firmly with foundation bolts, wire, etc. ○Connect using ground screw located near mark. for service W) Electric wiring work ○Make sure that the unit is stable in installation. Fix the unit to stable base.
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● Flaring work Measurement B Clamp Copper pipe diameter φ6.35 φ9.52 Flaring block Copper pipe φ12.7 Clutch type flare tool for R410A 0.0 ~ 0.5 0.0 ~ 0.5 0.0 ~ 0.5 Measurement B (mm) Conventional (R22) flare tool Clutch type Wing nut type 1.0 ~ 1.5 1.5 ~ 2.0 1.0 ~ 1.5 1.5 ~ 2.0 1.0 ~ 1.5 2.0 ~ 2.5 Use a flare tool designed for R410A or a conventional flare tool. Please note that measurement B (protrusion from the flaring block) will vary depending on the type of a flare tool in use.
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'10 • SRK-T-100 9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by remote controller Remote controller S Operation section FAN SPEED button OPERATION MODE select button Each time the button is pressed, the display is switched over in turn. Each time the button pressed, the display is switched over in turn. ON/OFF (luminous) button HI POWER/ECONO button This button changes the HIGH POWER/ ECONOMY mode. Press to start operation, press again to stop.
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'10 • SRK-T-100 (2) Unit ON/OFF button When the remote controller batteries become weak, or if the remote controller is lost or malfunctioning, this button may be used to turn the unit on and off. (a) Operation Push the button once to place the unit in the automatic mode. Push it once more to turn the unit off.
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'10 • SRK-T-100 (5) Flap control Control the flap by AIRFLOW  (UP/DOWN) button on the wireless remote controller. (a) Flap Each time when you press the AIRFLOW  (UP/DOWN) button the mode changes as follows. (Flap stopped) (Swing) Angle of flap from horizontal Remote controller display COOL , DRY Approx. 10° Approx. 20° Approx. 30° Approx. 45° Approx. 60° HEAT Approx. 20° Approx. 35° Approx. 50° Approx. 60° Approx. 75° (b) Swing Flap moves in upward and downward directions continuously.
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'10 • SRK-T-100 (7) Outline of heating operation (a) Operation of major functional components in heating mode Heating Thermostat ON Thermostat OFF Defrost Failure Compressor ON OFF OFF OFF Indoor fan motor ON ON(HOT KEEP) OFF OFF Outdoor fan motor ON OFF (few minutes ON) OFF OFF 4-way valve ON ON OFF OFF (3 minutes ON) (b) Details of control at each operation mode (pattern) 1) Fuzzy operation Deviation between the room temperature setting correction temperature and the suction air
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'10 • SRK-T-100 (8) Outline of cooling operation (a) Operation of major functional components in Cooling mode Cooling Thermostat ON Thermostat OFF Failure Compressor ON OFF OFF Indoor fan motor ON ON ON Outdoor fan motor ON OFF (few minutes ON) OFF (few minutes ON) 4-way valve OFF OFF OFF (b) Detail of control in each mode (Pattern) 1) Fuzzy operation During the fuzzy operation, the air flow and the compressor command speed are controlled by calculating the difference between the room t
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'10 • SRK-T-100 (10) Protective control function (a) Frost prevention for indoor heat exchanger (During cooling or dehumidifying) 1) 2) Operating conditions a) Indoor heat exchanger temperature (Th2) is lower than 5ºC. b) 8 minutes after reaching the compressor command speed except 0 rps. Compressor command speed Detail of anti-frost operation Indoor heat exchanger temperature Item Upper limit speed 5°C or lower 2.
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'10 • SRK-T-100 Model 50 A 49 53 53~44 44~33.5 33.5 RPSmin < 40 40 < = RPSmin < 80 80 < = RPSmin < 90 90 < = RPSmin < 102 102 < = RPSmin B 54 58 58~48 48~38.5 38.5 C 55 59 59~50 50~39.5 39.
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'10 • SRK-T-100 (ii) Protective control II 1) Operating conditions: When the outdoor air temperature sensor (TH2) is 0ºC or lower continuously for 30 seconds while the compressor command speed is other than 0 rps. 2) Detail of operation: The outdoor fan motor speed is stepped up by 2 speed step. (Upper limit 7th speed) 3) Reset conditions: When the either of the following condition is satisfied. a) When the outdoor air temperature sensor (TH2) becomes 2ºC or higher.
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'10 • SRK-T-100 (i) Outdoor unit failure This is a function for determining when there is trouble with the outdoor unit during air conditioning. The compressor is stopped if any one of the following in item 1), 2) is satisfied. Once the unit is stopped by this function, it is not restarted. 1) When the input current is measured at 1 A or less for 3 continuous minutes or more.
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'10 • SRK-T-100 10. MAINTENANCE DATA (1) Cautions (a) If you are disassembling and checking an air conditioner, be sure to turn off the power before beginning. When working on indoor units, let the unit sit for about 1 minute after turning off the power before you begin work. When working on an outdoor unit, there may be an electrical charge applied to the main circuit (electrolytic condenser), so begin work only after discharging this electrical charge (to DC 10 V or lower).
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'10 • SRK-T-100 (4) Troubleshooting procedure (If the air conditioner runs) Confirm the contents of the customer complaint. NO The cause of the trouble can be specifically identified. Eliminate the cause of the trouble and perform an operation check. Check the self-diagnosis display. See page 40. Is an error code displayed by the self-diagnosis function? YES NO Using the Service mode, access the self-diagnosis displays generated in the past. See pages 41~44.
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'10 • SRK-T-100 (5) Self-diagnosis table When this air conditioner performs an emergency stop, the reason why the emergency stop occurred is displayed by the flashing of display lights. If the air conditioner is operated using the remote controller 3 minutes or more after the emergency stop, the trouble display stops and the air conditioner resumes operation.
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'10 • SRK-T-100 (6) Service mode (Trouble mode access function) This air conditioner is capable of recording error displays and protective stops (service data) which have occurred in the past. If self-diagnosis displays cannot be confirmed, it is possible to get a grasp of the conditions at the time trouble occurred by checking these service data.
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'10 • SRK-T-100 *3: To count the number of flashes in the service mode, count the number of flashes after the light lights up for 1.5 second initially (start signal). (The time that the light lights up for 1.5 second (start signal) is not counted in the number of flashes.) • In the case of current safe (heating CT1) (example: stop code “32”) The RUN light (10’s digit) flashes 3 times and the TIMER light (1’s digit) flashes 2 times.
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'10 • SRK-T-100 ② Stop data Remote controller setting Operation switching Displayed data Fan speed Temperature switching setting Cooling LO 21ºC Displays the reason for the stop (stop code) the previous time when the air conditioner was stopped by protective stop control. 22ºC Displays the reason for the stop (stop code) 2 times previous when the air conditioner was stopped by protective stop control.
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'10 • SRK-T-100 Number of flashes when in service mode Stop code Error content or RUN TIMER light Error code light Minor category Major category (10’s digit) (1’s digit) 4 time flash 5 time flash Error Auto display recovery 41 Cooling overload 1 (outdoor temperature: 36~40ºC) Overcharge Compressor lock Overload operation When there is a current safe stop in overload 1 mode during cooling operation.
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'10 • SRK-T-100 Note (1) The number of flashes when in the Service Mode do not include the 1.5 second period when the lights light up at first (starting signal). (See the example shown below.) • In the case of current safe (heating CT1) (example: stop code “32”) The RUN light (10’s digit) flashes 3 times and the TIMER light (1’s digit) flashes 2 times. 3 × 10 + 2 × 1 = 32 → From the table, read the instructions for error code 32, “Current safe (heating CT1). RUN light (10’s digit) ON 1.5 sec. OFF 0.
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'10 • SRK-T-100 (e) Room temperature sensor temperature, indoor heat exchanger sensor temperature, outdoor air temperature sensor temperature, outdoor heat exchanger sensor temperature table Units: ºC TIMER light (1’s digit) RUN light (10’s digit) 0 1 2 3 4 5 6 7 8 9 6 -60 -61 -62 -63 -64 5 -50 -51 -52 -53 4 -40 -41 -42 -43 -54 -55 -56 -57 -58 -59 -44 -45 -46 -47 -48 -49 3 -30 -31 -32 2 -20 -21 -22 -33 -34 -35 -36 -37 -38 -39 -23 -24 -25 -26 -27 -
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'10 • SRK-T-100 (f) Discharge pipe temperature table Units: ºC TIMER light (1’s digit) RUN light (10’s digit) 0 1 2 3 4 5 6 7 8 9 3 -60 -62 -64 2 -40 -42 -44 -46 -48 -50 -52 -54 -56 -58 1 -20 -22 -24 -26 -28 -30 -32 -34 -36 -38 -2 -4 -6 -8 -10 -12 -14 -16 -18 Buzzer sound Yes (sounds for 0.
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'10 • SRK-T-100 Service data record form Model Customer Date of investigation Machine name Content of complaint Remote controller settings Temperature setting Operation switching Fan speed switching MED Cooling Heating Cooling 22 Heating Cooling 23 Heating Cooling Room temperature sensor temperature on previous occasion. Indoor heat exchanger sensor temperature on previous occasion. Heating Cooling 25 Outdoor air temperature sensor temperature on previous occasion.
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'10 • SRK-T-100 (7) Inspection procedures corresponding to detail of trouble Sensor error [Broken sensor wire, connector poor connection] NO Is connector connection good? Correct connection. YES NO Is sensor resistance value good? Replace sensor. YES Replace PCB. ◆ Sensor temperature characteristics (Room temp., indoor heat exchanger temp., outdoor heat exchanger temp., outdoor air temp.
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'10 • SRK-T-100 Current cut [Open phase on compressor output terminal, compressor lock] Does current cut operate when operating inverter with compressor wire disconnected? NO Defective outdoor PCB YES Is output voltage applied to all 3 phases of power transistor? NO Defective outdoor PCB YES NO Is there any shortcircuit? YES Secure space for suction and blow out. ¡ Check compressor wiring visually. Inspect compressor. If check results are normal, compressor is locked.
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'10 • SRK-T-100 [Gas shortage, defective discharge pipe sensor] Over heat of compressor Is discharge pipe sensor resistance value good? NO (page 49) Connector connection check, resistance value check, replacement of discharge pipe sensor YES Is sufficient quantity of refrigerant circulated? NO Does trouble persist after charging gas? NO Check if there are any places where gas is leaking. YES YES Clogged capillary tube or strainer, defective EEV, etc.
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'10 • SRK-T-100 [Defective fan motor, connector poor connection, defective PCB] Outdoor fan motor error Is connector connection good? NO Correct connector connection YES * Disconnect the fan motor connector, then investigate the DC fan motor and outdoor PCB separately. Is the output of the outdoor PCB normal? Is DC fan motor resistance value good? NO YES Replace outdoor fan motor NO Notes (1) See pages 57 for the DC fan motor and outdoor PCB check procedure.
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'10 • SRK-T-100 (8) Phenomenon observed after shortcircuit, wire breakage on sensor (a) Indoor unit Phenomenon Operation Sensor Shortcircuit Broken wire mode Release of continuous compressor operation command Continuous compressor operation command is not released. Room temperature Cooling sensor Continuous compressor operation command is not released. Heating Release of continuous compressor operation command Continuous compressor operation command is not released.
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'10 • SRK-T-100 (b) Indoor unit fan motor check procedure This is a diagnostic procedure for determining if the indoor unit fan motor or the indoor PCB is broken down. 1) Indoor PCB output check a) Turn off the power. b) Remove the front panel, then disconnect the fan motor lead wire connector. c) Turn on the power.
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Color symbol Color RD Red WH White Y Yellow Y／G Yellow／Green Indoor unit Power source 1 Phase 220-240V 50Hz Outdoor unit T 1 2 PWB ASSY T1 T2 250V 15A N 3 （BK） R.IN （WH）S.IN （Y／G） t゜ F2 250V 20A NOISE FILTER （RD） C-2 - PAM CIRCUIT F4 55 - （Y／G） G1 250V 10A CN20S 20S POWER TRANSISTOR P CNTH t゜ t゜ t゜ TH1 TH2 TH3 ◆Power source and serial signal inspection 1 to 2 : AC 220/230/240V 2 to 3 : Normal if the voltage oscillates between DC 0 and approx.
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CAUTION- HIGH VOLTAGE High voltage is produced in the control box. Don't touch electrical parts in the control box for 5 minutes after the unit is stopped.
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'10 • SRK-T-100 (6P, black) 3) 4) 1 2 Red White Expansion valve connector 3 4 Blue 5 Orange 6 Yellow (a) Inspection of electronic expansion valve Electronic expansion valve operates for approx. 10 seconds after the power on, in order to determine its aperture. Check the operating sound and voltage during the period of time. (Voltage cannot be checked during operation in which only the aperture change occurs.
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INVERTER WALL MOUNTED TYPE RESIDENTIAL AIR-CONDITIONERS Air-Conditioning & Refrigeration Systems Headquarters 16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan Fax : (03) 6716-5926 Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. C Copyright MITSUBISHI HEAVY INDUSTRIES, LTD.