Cryo's YCNQ 251 GR Service Manual Download Page 1 | Manualshive

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WALL MOUNTED SPLIT-TYPE AIR CONDITIONERS

CONTENTS

1.

IMPORTANT NOTICE

2.

TECHNICAL SPECIFICATION

· · · · · · · · · · · · · · · · · · · · · 3

3.

OPERATION DETAILS

4.

WIRING DIAGRAM

Models

SERVICE MANUAL

No.TE050616

3

13

5

2

1
2
3
...
»

Summary of Contents for YCNQ 251 GR

Page 1: ...WALL MOUNTED SPLIT TYPE AIR CONDITIONERS CONTENTS 1 IMPORTANT NOTICE 2 TECHNICAL SPECIFICATION 3 OPERATION DETAILS 4 WIRING DIAGRAM Models SERVICE MANUAL No TE050616 3 13 5 2 ...

Page 2: ...n nor can it assume any liability in connection with its use The information specifications and parameter are subject to change due to technical modification or improvement without any prior notice The accurate specifications are presented on the nameplate label How to order spare parts To have your order filled promptly and correctly please furnish the following information 1 Model No with Indoor...

Page 3: ...fin and grooved tube type ϕ 7 Condenser Corrugated fin and grooved tube type ϕ 9 52 Expansion device Capillary tube Defrosting system Microcomputer controlled reverse system Fan System Indoor air circulation Hi Cooling m 3 h Indoor fan type Cooling rpm Heating rpm Dry rpm Indoor fan speed H M L Sleep rpm Indoor fan motor output W Outdoor air circulation m 3 h Outdoor fan type Outdoor fan speed rpm...

Page 4: ...rrugated fin and grooved tube type ϕ 9 52 Expansion device Capillary tube Defrosting system Microcomputer controlled reverse system Fan System Indoor air circulation Hi Cooling m 3 h Indoor fan type Cooling rpm Heating rpm Dry rpm Indoor fan speed H M L Sleep rpm Indoor fan motor output W Outdoor air circulation m 3 h Outdoor fan type Outdoor fan speed rpm Outdoor fan motor output W Connections Re...

Page 5: ...roller 6 2 5 3 7 1 1 1 Air Conditioner Service Manual Operation Details Remote Control The remote controller is not presetted as Cooling Only Air Conditioner or Heat Pump by manufacturer Each time after the remote controller replace batteries or is energized the arrowhead will flashes on the front of Heat or Cool on LCD of the remote controller User can preset the remote controller type depending ...

Page 6: ...CNQ 251 671 GR Air Conditioners Service Manual 6 REMOTE CONTROLLER The four types of remote controller is as follow GYKQ 05 GYKQ 10e GYKQ 11e GYKQ 12e Note The function of remote controller above is the same ...

Page 7: ...e of compressor Outdoor fan OFF when the indoor pipe temperature is 50 Outdoor fan ON when the indoor pipe temperature is 48 Compressor OFF when the indoor pipe temperature is 62 Compressor ON when the indoor pipe temperature is 48 2 I Feel Mode Operation 1 When the I Feel mode is selected the operation mode and initial set temperature are determined by the initial room temperature at start up of ...

Page 8: ... HEATING mode is selected without setting temperature the system will set the temperature at 23 automatically with the AUTO FAN speed 2 When selecting the HEATING mode operation the system will operate according to the setting by the remote controller and the operation is as following Set Temp 1 Set Temp 1 Room Temp Time More than 2 min More than 2 min More than 2 min More than 2 min More than 2 m...

Page 9: ...temperature of the IPT is less then 35 for 2 minutes When the defrosting operation time on this condition exceeds 8minutes it will terminate C After the compressor operation continuously for 20 minutes and the IPT is less than 23 or from the last time of defrosting operation is 50 minutes or more interval When the defrosting operation time on this condition exceeds 10 minutes it will terminal When...

Page 10: ... SLEEP mode the set temperature will be raised by 1 1 hour later and by 2 2 hour later When selecting HEATING operation with SLEEP mode the set temperature will be dropped by 1 1 hour later and 2 2hour later After the System operates in SLEEP mode for 8 hours it will stop automatically 9 Fan motor control 1 Rotational frequency feedback control The indoor fan motor is equipped with a rotational fr...

Page 11: ...confirm the standard position and then set to the desired angle The positioning is decided as follows When the ON OFF button is pressed When the vane control is change from AUTO to MANUAL When the SWING is finished When the test run starts When the power supply turns ON 3 The auto vane changes as follows by pressing the VANE CONTROL button 4 VANE AUTO mode In vane auto mode the microprocessor auto...

Page 12: ...on switch is pressed or a button on the remote controller is pressed the normal operation will start NOTE Do not press the EMERGEMCY Operation switch during normal operation 14 AUTO RESTART Function Option 1 When the indoor unit is controlled with the remote controller the operation mode set temperature and the fan speed are memorized by the indoor electric control PCB The AUTO RESTART function se...

Page 13: ... receive the signal of remoter controller except the signal of shut off it When the system check the voltage is 220V and the delay control is finished it operates at normal again When the indoor fan motor is failure the compressor is stopped the outdoor fan and indoor fan is stopped and display the failure The system doesn t receive the signal of remoter controller except the signal of shut off it...

Page 14: ...emp sensor Transformer Power Supply Brown Blue PCB CN1 CN2 TH1 TH2 P2 1 P5 P4 P2 2 NO K1 COM 4 3 CN8 CN6 CN5 CN4 CN3 M M θ N 3 2 1 Outdoor Unit 1 2 3 N YLW GRN Blue Yellow Red Brown OUTDOOR UNIT θ Compressor 4 way Vane White CM R M C S Blue Compressor Capacitor Red Protecter Black Brown White Red Yellow Blue Yellow Green Blue Yellow Green Outdoor Unit Indoor Unit Fan Motor Blue Fan Capaciter Blue ...

Page 15: ...llow Brown Relay P5 P1 P3 P4 Red White Blue Yellow FM SM SM Room Temp Sensor Vane Motor Fan Motor Transformer CN3 P9 1 P9 2 CN5 1 CN5 2 CN6 CN7 CN8 P2 1 CN2 CN1 OUTDOOR UNIT θ Compressor Valve Coil White CM R M C S Blue Compressor Capacitor Red Protecter Black Brown White Red Yellow Blue Yellow Green Blue Yellow Green Outdoor Unit Indoor Unit Fan Motor Blue Fan Capaciter Blue Yellow Green 1 2 3 N ...

Page 16: ...M OUTDOOR UNIT White White Red Yellow Blue Brown YLW GRN Blue Red Brown YLW GRN Brown Blue Blue Brown To Power Supply To Indoor Unit Valve Coil Yellow Red C1 Fan Capacitor Blue Blue Red Compressor Capacity White C2 YLW GRN Compressor Blue Motor Fan Motor Relay O P T FM FM C S R 1 2 3 N L L N YLW GRN Blue Junction ...

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