Carrier 42HQE - 38YE Manuel utilisateur

42HQE - 38YE

SERVICE MANUAL

42HQE022N

38YE022

Service Manual

Split Wall-Mounted Type

Room Air Conditioner

(ALLEGRO SERIES)

Model applied:

42HQE022N/38YE022

Contents

1. Features 60

2. Specification 61

3. Dimensions 67

4. Refrigeration cycle diagram 70

5. Operation limits 71

6. Wiring diagram 72

7. Specification of electrical parts

8. Troubleshooting 80

9. Electronic function

10. Exploded view and spare parts list

1. Features

1.1 Compact design.

1.2 Quiet operation.

1.3 Anti-icing function at cooling mode.

1.4 Anti-cold air function at heating mode.

1.5 Auto-defrosting and heating recovering function at heating mode.

1.6 Outdoor unit overload current protection.

1.7 Restart function.

1.8 24 hours on/off mode time setting.

1.9 Error self diagnosis function.

2.Specification

Model 42HQE022N/38YE022

Power supply Ph-V-Hz 1, 220-240V~, 50Hz

Capacity Btu/h 21500

Rated Input W 2480

Rated current A 11

Cooling

EER W/W 2.54

Capacity Btu/h

25000

Rated Input W

2550

Rated current A 11.4

Heating

COP W/W

2.87

MoistureRemoval L/h 2

Max. input consumption W 3200

Max.current A 16

Startingcurrent A 63

Model PG420X3CS-4KU1

Type Rotary

Brand GMCC

Capacity Btu/h 25900

Input W 2490

Rated current(RLA) A 11.6

Thermal protector Internal

Capacitor uF 50

Compressor

Refrigerant oil ml RB68AF/T68/α68TF 950

Model YDK36-4G

Brand Welling

Input W 66/65/63 (36)

Capacitor uF 2µF/450V

Indoor fan motor

Speed(hi/mi/lo) r/min 1050/960/860

a.Number of rows 2

b.Tube pitch(a)xrow pitch(b) mm 21X13.37

c.Finspacing mm 1.3

d.Fin type (code) Hydrophilic aluminium

e.Tube outside dia.and type mm Ф7,innergroove tube

f.Coil length x height x width mm 810X357X26.74

Indoor coil

g.Number of circuits 4

Indoor fan Type mm Crossflow

Indoor air flow (Hi/Mi/Lo) m3/h 1050/950/850

Indoor Sound pressure (Hi/Mi/Lo) (LPA) @cooling dB(A) 48/45/42

Indoor Sound power (Hi/Mi/Lo) (LWA) @cooling dB(A)

Dimension (W*H*D) mm 1080X330X222

Packing (W*H*D) mm 1165X445X320

Indoor unit

Net/Gross weight Kg 17/22

Model YDK53-6K

Brand Welling

Input W 125

Capacitor uF 3.5

Outdoor fan motor

Speed r/min 800

a.Number of rows 2

b.Tube pitch(a)xrow pitch(b) mm 25.4x22

c.Finspacing mm 1.4

d.Fin type (code) Hydrophilic aluminium

e.Tube outside dia.and type mm Ф9.53,innergroove tube

f.Coil length x height x width mm 797X660X44

Outdoor coil

g.Number of circuits 4

Outdoor fan Type and Diameter mm Propeller

Outdoor air flow m3/h 2500

Outdoor Sound pressure (LPA) @cooling dB(A) 59

Outdoor Sound power (LWA) @cooling dB(A)

Dimension(W*H*D) mm 845X695X335

Packing (W*H*D) mm 970X770X395

Outdoor unit

Net/Gross weight Kg 62/67

Refrigerant type R407c g 2000

Designpressure MPa 2.8

Liquid side/ Gas side mm(inch) Ф9.53/Ф16.0

Max. refrigerant pipe length m 20

Refrigerant piping

Max. difference in level m 10

dditional refrigerant charge

over 5m g/m 65

Main mm Φ3.6*2.1*700

Expansion device (Capillary) Sub mm Φ3.6*2.1*600

Operationtemp ℃17-30

mbienttemp ℃—7-43

pplication area m2 34~49

Remarks:

1.Cooling capacities are based on indoor air temp. 27℃DB, 19℃WB and outdoor air temp. 35℃DB,

and 24℃WB. Heating capacities are based on indoor air temp. 20℃DB, 15℃WB and outdoor air

temp. 7℃DB, and 6℃WB.

2. Indoor Sound Pressure level is measured in free field (JIS 9612 std) at 1m distance.

Outdoor Sound Pressure level is measured in hemispherical field, at 4m distance from the unit.

these values are normally somewhat different as a result of ambient condition.

3. Dimensions

3.1 Indoor unit 42HQE022N

3.2 Outdoor unit 38YE022

12. 5

4. Refrigeration cycle diagram

Cooling & heating

Indoor unit outdoor unit

Auxiliary accumulator for 12K

Valve

Sensor of room temp

. 4wayvalve

Heat exchanger Heat exchanger

Sensor of heat exchanger temp Accumulator

Compressor

Valve Capillary

5.Operation limits

5.1Cooling operation

Outdoor unit air temp.℃DB

10 15 20 25 30 35 40

Indoor air temp. ℃DB

Note : The chart is the result from the continuous operation under constant air temperature

conditions. However, excludes the initial pull-down stage.

5.2Heating operation

Indoor air temp. ℃DB

DRY COOLING

-5 5 15 25

Outdoor unit air temp.℃DB

Note : The chart is the result from the continuous operation under constant air

temperature conditions. However, excludes the initial pull-down stage.

6. Wiring diagram

Model: 42HQE022N/ 38YE022

A1 A2

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