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REG-183A
REG-243A
SERVICE MANUAL
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
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Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions..........................................................................................................................................3 Dimensions......................................................................................................................................................5 Product Specifications ............................................................................................................
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Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury. WARNING CAUTION This symbol indicates the possibility of injury or damage to property only. Meanings of symbols used in this manual are as show
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Safety Precautions Do not modify or extend the power cord. Do not install, remove, or re-install the unit by yourself(customer). • There is risk or fire or electric shock. • There is risk of fire, electric shock, explosion, or injury. Be cautious when unpacking and installing Do not store or use flammable gas or com- the product. bustibles near the air conditioner. • Sharp edges could cause injury. Be especially careful • There is risk of fire or failure of product. of the case edges and the
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H Dimensions Dimensions Symbols Used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the air conditioner. NOTICE This symbol indicates special notes. Outside Dimensions D W Model REG-183A REG-243A Dimension W mm(inch) 660 (26) 660 (26) 27 27 H mm(inch) 428 (16 /32) 428 (16 /32) 5 5 D mm(inch) 770(30 /16) 770 (30 /16) Service Manual 5
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Specfications Product Specifications MODELS REG-183A REG-243A ITEMS POWER SUPPLY 1Ø, 208/230V, 60Hz 1Ø, 208/230V, 60Hz COOLING CAPACITY (Btu/h) 17,500/17,000 23,00/23,500 INPUT (W) 1,800/1,750 2,700/2,760 RUNNING CURRENT (A) 8.2/8.8 13.2/12.2 E.E.R (BTU/W.h) 9.7/9.7 8.5/8.5 HEATING CAPACITY (Btu/h) 11,600/9,400 9,400/11,600 INPUT (W) 3,100/3,670 3,750/3,770 RUNNING CURRENT (A) 15.0/16.0 15.0/16.0 INDOOR(°C) 26.7 (DB)* 19.4 (WB)** COOLING OPERATING OUTDOOR(°C) 35 (DB)* 23.9 (WB)** CONDI
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Installation INSTALLATION How to Install the unit 1. To avoid vibration and noise, make sure the unit is 1/4 Bubble installed securely and firmly. 2. Install the unit where the sunlight does not shine directly on the unit. If the unit receives direct sunlight, build an awning to shade the cabinet. Level 3. There should be no obstacle, like a fence, within 20" which might restrict heat radiation from the condenser. 4. To prevent reducing performance, install the unit so that louvers of the cabine
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Installation Window Requirements NOTICE All supporting parts should be secured to firm wood, masonry, or metal. • WINDOW REQUIREMENTS 1. This unit is designed for installation in standard double hung windows with actual opening widths from 29" to 41". The top and bottom window sashes must open sufficiently to allow a clear vertical opening of 18" from the bot- tom of the upper sash to the window stool. 1 2. The stool offset (height between the stool and sill) must be less than 1 /4". Installa
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Installation Suggested tool Requirements SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL • PREPARATION OF CHASSIS Shipping screws 1. Remove the screws which fasten the cabinet at both sides and at the back. Keep these two screws which fasten the cabinet at both sides for later use. 2. Slide the unit out from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet. Figure 1 3. Cut the window sash seal to the proper length. Peel off the backing and attach t
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Installation Cabinet Installation 1. Open the window. Mark a line on the center of the win- Sill dow stool between the side window stop moldings. Bracket Support Loosely attach the sill bracket to the support bracket Bracket Carriage using the carriage bolt and the lock nut. Lock nut Bolt (M-Screw) Figure 5 2. Attach the sill bracket to the window sill using the Machine screw (Type D) screws (Type B). and lock nut Cabinet Carefully place the cabinet on the window stool and Track hole Outer edg
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Installation 5. Pull each Frame curtain fully to each window sash track, and pull the bottom window sash down behind the Top retainer bar until it meets. 6. Attach each Frame curtain the window sash by using screws (Type C). (See Fig. 10) Figure 10 7. Slide the unit into the cabinet. (See Fig. 11) CAUTION: For security purpose, rein- Power Cord stall screws (Type A) at cabinet's Screw (Type A) Screw sides. Figure 11 8. Cut the Foam-strip to the proper length and insert Foam-Strip between the
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Installation Operation • VENTILATION The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions. When a fresh air is necessary in the room, set the ven- tilation lever to the OPEN position. The damper is opened and room air is exhausted. CLOSE VENT OPEN REMOTE CONTROLLER Power 1 Temp 5 Fan Speed 4 Timer Mode 3 2 Energy Auto Saver Swing 7 6 1. POWER BUTTON To turn the air conditioner ON, push the button. To turn the air conditioner OFF, push the button ag
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Disassembly Disassembly - Before the following disassembly, power switch is set to off and disconnected the power cord. Mechanical parts 1. Front grille 1. Open the inlet grille upward or downward. 2. Remove the screw which fastens the front grille. 3. Pull the front grille from the right side. 4. Remove the front grille. (See Fig. 16) 5. Re-install the component by referring to the removal procedure. NOTICE Mark ∆ of inlet grille means opening direction. 2. Cabinet 1. After disassembling the f
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Disassembly Air handling parts 4. Cover (at the top) 1. Remove the front grille. (Refer to section 1) 2. Remove the cabinet. (Refer to section 2) 3. Remove 11 screws which fasten the brace and covers. 4. Remove the covers and the brace. (See Fig. 19) 5. Re-install the components by referring to the removal procedure, above. Figure 19 5. Blower 1. Remove the cover. (Refer to section 4) 2. Remove the 3 screws which fasten the evaporator at the left side and the top side.(See Fig. 19) 3. Move the e
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Disassembly 6. Fan 1. Remove the cabinet. (Refer to section 2) 2. Remove the brace and shroud cover. (Refer to section 4) 3. Remove the side cover with 2 screws.(See Fig. 23) 4. Remove the 5 or 6 screws which fasten the condenser. 5. Move the condenser sideways carefully. 6. Remove the clamp which secures the fan. 7. Remove the fan. (See Fig. 23) Figure 23 8. Re-install the components by referring to the removal procedure, above. 7. Shroud 1. Remove the fan. (Refer to section 6) 2. Remove the 2
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Disassembly 10. CAPACITOR 1. Remove the control box. (Refer to section 3) 2. Remove the screw and knobs which fasten the display panel. 3. Disconnect the 2 leads from the rocker switch and remove the panel. 4. Remove a screw and unfold the control box. (See Fig. 27) 5. Remove the screw and the clamp which fastens the capacitor. (See Fig. 27) 6. Disconnect all the leads of capacitor terminals. 7. Re-install the components by referring to the removal procedure, above. Figure 27 11. POWER CORD 1. R
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Disassembly 13. SYNCHRONOUS MOTOR 1. Remove the control box. (Refer to section 3) 2. Unfold the control box. (Refer to section 10) 3. Remove the crankshaft. 4. Disconnect all the leads of the synchronous motor. 5. Remove the 2 screws which fasten the synchronous motor. (See Fig. 30) 6. Re-install the components by referring to the removal procedure, above. Figure 30 Service Manual 18
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Disassembly Refrigeration cycle TM CAUTION: Discharge the refrigerant system using Freon Recovery System.If there is no valve to attach the recovery system, install one (such as a WATCO A-1) TM before venting the Freon . Leave the valve in place after servicing the system. 16. CONDENSER 1. Remove the cabinet. (Refer to section 2) 2. Remove the brace and the shroud cover. (Refer to section 4) 3. Remove 2 screws which fasten the side cover.(See Fig. 31) 4. Remove the 5 or 6 screws which fasten the
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NOTICE - Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to TM discharge the refrigerant system using a Freon recovery System. 6. Recharge as follows : If there is no valve to attach the recovery system, 1) Refrigeration cycle systems are charged from the install one (such as a WATCO A-1) before venting TM High-side. If the total charge cannot be put in the the Freon . Leave the valve in place after High-side, the balance will be put in the suction ser
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Disassembly Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable of making a leak-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 31B-Charging Figure 31A-Pulling Vacuum 21 Room Air Conditioner COMPOUND GAUGE CONDENSER (HIGH PRESSURE SIDE) MANIFOLD GAUGE B A CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR LOW HI A B A B EXTERNAL VACUUM PUMP CHARGING CYLINDER C
