York Y9USC-09 B5R Service Manual Download Page 14 | Manualshive

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Service manual

13

3 REFRIGERANT CYCLE DIAGRAM

The figure below is a brief description of the important components and their function in what is called the refrigeration system.

This will help to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.

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Summary of Contents for Y9USC-09 B5R

Page 1: ...Window Y9USC E 09 12 18 B5R SERVICE MANUAL Y9USC 09 B5R Y9USE 09 B5R Y9USC 12 B5R Y9USE 12 B5R Y9USC 18 B5R Y9USE 18 B5R SM Y9USC E 09 18GB 03 07 ...

Page 2: ...IAGRAM PANEL 3 1 6 OUTSIDE DIMENSIONS 3 1 7 SPECIFICATION 4 2 INSTALLATION 10 2 1 SELECT THE BEST LOCATION 10 2 2 CHECK OFF INSTALLATION 10 2 3 HOW TO DRAIN 11 2 4 HOW TO INSTALL 11 3 REFRIGERANT CYCLE DIAGRAM 13 4 OPERATION LIMITS 14 4 1 COOLING OPERATION 14 4 2HEATING OPERATION 14 5 TROUBLESHOOTING 17 ...

Page 3: ...ER OUTLET FOR THIS APPLIANCE 1 2 6 GRASP THE PLUG TO REMOVE THE CORD FROM THE OUTLET DO NOT TOUCH IT WITH WET HANDS 1 2 7 DO NOT PLACE A HEATER OR OTHER APPLIANCE NEAR THE POWER CABLE 1 2 8 DO NOT ALLOW WATER TO RUN INTO ELECTRICAL PARTS 1 2 9 DO NOT STORE OR USE FLAMMABLE GAS OR COMBUSTIBLES NEAR THE AIR CONDITIONER 1 2 10 UNPLUGGING THE UNIT IF STRANGE SOUNDS ODORS OR SMOKE COMES FROM IT 1 2 11 ...

Page 4: ...gin auto louver function When the switch is off the louver motor will stop Thermostat Set the temperature desired Selector Selector operation function on COOL HEAT or FAN ONLY with HIGH MID or LOW fan speed Test run Turn the knob to this position to operate the unit in FORCED COOLING Under this mode the unit will operate in cooling immediately Wait three minutes before restarting To protect the co...

Page 5: ...995 Rated current RLA A 4 6 4 6 Locked rotor Amp LRA A 24 24 Thermal protector UP3QE0591 T61 UP3QE0591 T61 Capacitor uF 30 30 Compressor Refrigerant oil ml 400 400 Refrigerant type R407C 510g R407C 550g Design pressure MPa 2 6 2 6 Model YSK60 4C YSK60 4C Brand Welling Broad Welling Broad Input W 112 98 86 112 98 86 Capacitor uF 2 5 2 5 Fan motor Speed hi mi lo r min 1270 1170 1050 1270 1170 1050 a...

Page 6: ...Coil length x height x width mm 370X315X40 11 370X315X40 11 Condenser g Number of circuits 2 2 Outdoor air flow Hi Mi Lo m3 h m3 h 700 620 540 700 620 540 Outdoor noise level Hi Mi Lo dB A dB A 58 55 52 58 55 52 Dimension W H D mm 450 350 540 450 350 540 Packing W H D mm 495 435 580 495 435 580 Net Gross weight Kg 35 39 37 41 Operation temp 16 31 16 31 Ambient temp 17 43 10 43 Application area m2 ...

Page 7: ...current RLA A 6 6 Locked rotor Amp LRA A Not Fixed Not Fixed Thermal protector INTERNAL INTERNAL Capacitor uF 35 35 Compressor Refrigerant oil ml 480 480 Refrigerant type R407C 870g R407C 900g Design pressure MPa 2 6 2 6 Model YSK70 6C YSK70 6C Brand Welling Broad Welling Broad Input W 113 104 100 113 104 100 Capacitor uF 2 5 2 5 Fan motor Speed hi mi lo r min 900 800 700 900 800 700 a Number of r...

Page 8: ...be f Coil length x height x width mm 475X381X66 475X381X66 Condenser g Number of circuits 2 2 Outdoor air flow Hi Mi Lo m3 h m3 h 850 780 700 850 780 700 Outdoor noise level Hi Mi Lo dB A dB A 58 55 52 58 55 52 Dimension W H D mm 560 400 650 560 400 650 Packing W H D mm 620 445 770 620 445 770 Net Gross weight Kg 48 53 54 59 Operation temp 16 31 16 31 Ambient temp 17 43 10 43 Application area m2 1...

Page 9: ...ent RLA A 8 2 8 2 Locked rotor Amp LRA A Not Fixed Not Fixed Thermal protector UP3QE0391 T39 UP3QE0391 T39 Capacitor uF 35 35 Compressor Refrigerant oil ml 520 520 Refrigerant type R407C 870g R407C 1150g Design pressure MPa 2 6 2 6 Model YSK93 6C YSK93 6C Brand Welling Broad Welling Broad Input W 143 130 120 143 130 120 Capacitor uF 4 4 Fan motor Speed hi mi lo r min 900 800 700 900 800 700 a Numb...

Page 10: ...1200 1100 1000 1200 1100 1000 Outdoor noise level Hi Mi Lo dB A dB A 60 57 54 60 57 54 Dimension W H D mm 660 435 640 660 435 640 Packing W H D mm 750 520 740 750 520 740 Net Gross weight Kg 55 60 59 64 Operation temp 16 31 16 31 Ambient temp 17 43 10 45 Application area m2 30 40 30 40 Qty per 20 40 HQ Fcl Pieces 94 240 94 240 Note The noise date is base on hemi anechoic chamber during actual oper...

Page 11: ...ght angle so that an condensate formed will not enter the room about 10mm or 1 4 bubble with level 6 Install the unit with its bottom portion 75 150cm above the floor level 7 The power cord must be connected to an independent circuit The yellow green wire must be grounded 2 2 CHECK OFF INSTALLATION The setting conditions must be checked prior to initial starting The under mentioned items are espec...

Page 12: ...not supplied 2 4 HOW TO INSTALL 2 4 1 INSTALLATION OF THE HOUSING Step1 Remove the air conditioner from it s packaging remove fixing screws and slide the air conditioner out of it s housing refer to installation steps Step2 Prepare the hole in the wall so that the bottom of the housing is well supported the top has minimum clearance and the air inlet louvers have clearance as shown below in option...

Page 13: ...nd make the air filter arched remove it from the slot from underside to upside See Fig 2 Step 2 Remove the frame Remove the two fixing screws from the frame See Fig 3 Grasp the left corner of the frame s underside then loosen the frame See Fig 4 Step 3 Installation Remove the two fixing screws on the chassis fixing brackets then remove the chassis fixing brackets See Fig 5 Grasp the handle on the ...

Page 14: ...AGRAM The figure below is a brief description of the important components and their function in what is called the refrigeration system This will help to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle ...

Page 15: ...lt from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 4 2 HEATING OPERATION Indoor air temp ºC DB Outdoor unit air temp ºC DB Note The chart is the result from the continuous operation under constant air temperature conditions However excludes the initial pull down stage ...

Page 16: ...Service manual 15 5 SCHEMATIC DIAGRAM AND WIRING DIAGRAM Y9USC 09 B5R Y9USE 09 B5R ...

Page 17: ...Service manual 16 Y9USC 12 B5R Y9USC 18 B5R Y9USE 12 B5R Y9USE 18 B5R ...

Page 18: ...pacitor Replace if not within 10 of manufacture s rating Replace if shorted open or damaged Fan motor will not run Will not rotate Fan blade hitting shroud or blower hitting scroll Realign assembly Check fan motor bearings Replace the motor if motor shaft do not rotate Check voltage Call an electrician if not within limits Test capacitor Replace if not within 10 of manufacture s rating Check beari...

Page 19: ...gh pressure The refrigerating system can not produce high pressure and low pressure Replace the compressor after checking for the reason Heat sources Reduce if too many reverse valve The seal in valve is damaged making the low pressure connected with the high pressure The refrigerating system can not produce high pressure and low pressure Replace the reverse valve after checking for the reason Ins...

Page 20: ...ng Replace if shorted open or damaged Thermostat Check the thermostat setting if not at the coolest in cooling mode or the warmest in heating mode Set it if not Compressor will not run while fan motor runs Compressor Check the compressor for open circuit or ground If open or grounded replace the compressor Excessive noise Copper tubing Remove the cabinet and carefully rearrange tubing not to conta...

Page 21: ...wwwjohnsoncontrols com SM Y9USC E 09 18GB 03 07 ...

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