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2.4 REFRIGERATION CYCLE

2.4.1 CONDENSER

1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the brace and the shroud cover.

(Refer to section 2.2.1)

3. Remove 2 screws which fasten the side

cover.(See Fig. 16)

4. Remove the 5 or 6 screws which fasten the

condenser.

5. After discharging the refrigerant completely,

unbraze the interconnecting tube at the condenser
connections.

6. Remove the condenser.
7. Re-install the components by referring to notes.

(See Fig. 16)

2.4.2 EVAPORATOR

1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the top cover and the brace. 

(Refer to section 2.2.1)

3. Discharge the refrigerant completely.
4. Remove the 3 screws which fasten the evaporator

at the left side and the top side.

5. Move the evaporator sideward carefully and then

unbraze the interconnecting tube at the evaporator
connectors.

6. Remove the evaporator.
7. Re-install the components by referring to notes.

(See Fig. 17)

2.4.3 CAPILLARY TUBE

1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the brace. (Refer to section 2.2.1)
3. After discharging the refrigerant completely,

unbraze the interconnecting tube at the capillary
tube.

4. Remove the capillary tube.
5. Re-install the components by referring to notes.

Figure 16

Figure 17

Discharge the refrigerant system using Freon

TM

Recovery System.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before
venting the Freon

TM

. Leave the valve in place

after servicing the system.

CAUTION

Summary of Contents for HQ-2243TH,LWC081

Page 1: ...ls of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair...

Page 2: ...REPLACEMENT PARTS LIST 27 1 PREFACE This SERVICE MANUAL provides various service information including the mechanical and electrical parts etc This room air conditioner was manufactured and assembled...

Page 3: ...UCTION PROTECTOR COMPRESSOR FAN MOTOR POWER CORD DRAIN SYSTEM NET WEIGHT lbs kg DIMENSION W H D inch mm 1 230 208 60 2 350 2 300 2 500 2 450 11 2 12 0 9 4 DB 80 26 7 WB 67 19 4 DB 95 35 WB 75 23 9 980...

Page 4: ...h Cool or the Low Cool setting 2 Set the Thermostat control to the desired temperature mark 5 the mid point is a good starting position If the room temperature is not satisfactory after a reasonable t...

Page 5: ...air can be controlled wherever you want to cool by adjusting the horizontal louver and the vertical louver The vertical air direction is adjusted by rotating the horizontal louver forward or backward...

Page 6: ...OX 1 Remove the front grille Refer to section 2 1 1 2 Pull the base pan forward so that you can remove the 2 screws which fasten the cover control at the right side See Fig 3 3 Remove the 3 screws whi...

Page 7: ...rocedure above 2 2 2 BLOWER 1 Remove the cover Refer to section 2 2 1 2 Remove the 3 screws which fasten the evaporator at the left side and the top side See Fig 4 3 Move the evaporator sideward caref...

Page 8: ...housing in control box Refer to section 2 1 3 3 Remove the blower Refer to section 2 2 2 4 Remove the fan Refer to section 2 2 3 5 Remove the 4 screws which fasten the motor See Fig 9 6 Remove the mot...

Page 9: ...the control box 4 Disconnect 2 receptacles 5 Remove a screw which fastens the clip cord 6 Pull the power cord See Fig 12 7 Re install the component by referring to the removal procedure above Use only...

Page 10: ...See Fig 14 6 Re install the components by referring to the above removal procedure above 2 3 7 SYNCHRONOUS MOTOR 1 Remove the control box Refer to section 2 1 3 2 Unfold the control box Refer to sect...

Page 11: ...emove the 3 screws which fasten the evaporator at the left side and the top side 5 Move the evaporator sideward carefully and then unbraze the interconnecting tube at the evaporator connectors 6 Remov...

Page 12: ...fold connection 5 The system is now ready for final charging 6 Recharge as follows 1 Refrigeration cycle systems are charged from the High side If the total charge cannot be put in the High side the b...

Page 13: ...or proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve A COMPOUND GAUGE EVAPORATOR LOW PRESSURE SIDE COMPRESSOR CAPILLARY TUBE CONDENSER HIGH PRESSURE SIDE SEE INSETS...

Page 14: ...air and insects from getting into the room 8 The power cord must be connected to an independent circuit The green wire must be grounded 9 Connect the drain tube to the base pan hole in the rear side i...

Page 15: ...Backed Type C 5 Type D 2 Type A 14 Carriage Bolt 2 Lock Nut 4 Type B 7 Foam strip Plain Back Right frame curtain Drain pipe Window locking bracket Left frame curtain Frame guide 2 Sill bracket 2 Supp...

Page 16: ...the window sash 4 Remove the backing from FOAM PE with 3 holes and attach it to the bottom of the Top retainer bar 5 Attach the Top retainer bar onto the top of the cabinet with 3 screws Type A 6 Inse...

Page 17: ...Do not drill a hole in the bottom pan The unit is designed to operate with approximately 1 2 of water in bottom pan 4 Pull the bottom window sash down behind the Top retainer bar until they meet NOTE...

Page 18: ...the lower window sash See Fig 31 9 Attach the Window locking bracket with a screw Type C See Fig 32 10 Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the...

Page 19: ...to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle MOTOR COMPRESSOR OIL LIQUID REFRIGERANT CAPILLARY TUBE OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH SUCTION L...

Page 20: ...age Repair gas leak Replacement of unit if the unit is beyond repair Satisfactory operation with temperature difference of inlet outlet air 44 6 50 F Check heat load increase Unexpected residue Overlo...

Page 21: ...ation Replacement of fan motor Regular but fails to start Replacement of compressor locking of rotor metal Improper thermostat setting Loose terminal connection Improper wiring Irregular motor resista...

Page 22: ...bearings if motor shaft will not rotate replace the motor Check voltage See limits on this page If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely...

Page 23: ...ssor overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool it and retest Check the voltage See the limits on the preced ing page If not within l...

Page 24: ...arrange the air handling parts Remove the cabinet and carefully rearrange tubing not to contact cabinet compressor shroud and barrier Set the knob to HIGH COOL or LOW COOL while rocker switch is ON Ch...

Page 25: ...EL HQ 2243TH 1 3 4 7 2 6 5 WIRING DIACRAM ROCKER SWITCH WH WH SYNC M POWER INPUT WH BL BK BR Ribbed Plain NO 1 POWER CORD 1 2 ROTARY SWITCH 1 3 FAN MOTOR 1 4 CAPACITOR 1 5 THERMOSTAT 1 6 COMPRESSOR 1...

Page 26: ...26 6 EXPLODED VIEW MODEL HQ 2243TH LWC081 11 4 4 5 3 2 6 1 13 5 9 6 14 17 19 23 24 1 6 1 4 7 8 2 1 9 3 4 3 2 5 3 2 5 18 12 15 16 20 7 10 16 8 22 Owner sManual A C B D 21...

Page 27: ...0009A R 15 FAN AXIAL CW5900R1330B R 16 CLAMP SPRING CW3H02932C 17 ORIFICE CW494820014A 18 BRACE CW4800R7271A 19 EVAPORATOR ASSEMBLY FIRST CW542120017N 20 CONDENSER ASSEMBLY FIRST CW540320032F 21 VERTI...

Page 28: ...September 2003 P No 3828A20163N Printed in Korea...

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