Page 2 - TABLE OF CONTENTS; Symb
2 Room Air Conditioner Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions ..........................................................................................................................................3 Dimensions .............................................................
Page 3 - Safety Precautions; This symbol indicates the possibility of death or serious injury.; WARNING; Installation; • There is risk of fire or electric shock.; Be sure to follow the instruction.
Service Manual 3 Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions mustbe followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness isclassified by the following indications...
Page 4 - Do not modify or extend the power cord.; • There is risk or fire or electric shock.; Gasolin
4 Room Air Conditioner Safety Precautions Do not modify or extend the power cord. • There is risk or fire or electric shock. Do not install, remove, or re-install the unit byyourself(customer). • There is risk of fire, electric shock, explosion, or injury. Be cautious when unpacking and installingth...
Page 5 - Dimensions; Outside Dimensions; This symbol alerts you to the risk of electric shock.; Symbols Used in this Manual; Service Manual 5
Dimensions Dimensions H W D W mm(inch) 471(18 9 / 16 ) 600(23 5 / 8 ) H mm(inch) 352(13 7 / 8 ) 380(14 31 / 22 ) D mm(inch) 525(20 11 / 16 ) 5 76 (22 1 / 16 ) Model Dimension REG-71A REG-123A Outside Dimensions This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards t...
Page 6 - Product Specifications; MODELS
6 Room Air Conditioner Specfications Product Specifications POWER SUPPLYCOOLING CAPACITY (Btu/h) INPUT (W) RUNNING CURRENT (A) E.E.R (BTU/W.h) HEATING CAPACITY (Btu/h) INPUT (W) RUNNING CURRENT (A) INDOOR(°C) OUTDOOR(°C) INDOOR(°C) OUTDOOR(°C) REFRIGERANT (R-22) CHARGEEVAPORATORCONDENSERFAN, INDOORF...
Page 7 - Select the Best Location; CAUTION: All side louvers of the cabinet
Service Manual 7 Installation Installation Select the Best Location Installation Check How to Secure the Drain Pipe(When using drain pipe) 1.To prevent vibration and noise, make sure the unit is installed securely and firmly. 2.Install the unit where the sunlight does not shine directly on the unit....
Page 8 - How to Install(Models without Installation Kit)
8 Room Air Conditioner Installation How to Install(Models without Installation Kit) 1. Remove the screws that fasten the cabinet at both sides and at the back. 2. Slide the unit from the cabinet by gripping the base pan handle and pulling forwardwhile bracing the cabinet. 3. Remove EPS Material. 4. ...
Page 9 - How to Install(Models with Installaion Kit); When Using Gasket; Window Requirements
Service Manual 9 Installation How to Install(Models with Installaion Kit) When Using Gasket When Using Installation Kits 1. Window Requirements This unit is designed for installation in standard double hung windows with actual openingwidths from 27" to 39".The top and bottom window sash must...
Page 10 - When Using Installation Kits; Installation Kits Contents
Installation 10 Room Air Conditioner When Using Installation Kits 1. Window Requirements This unit is designed for installation in standard double hung windows with actual openingwidths from 22" to 36".The top and bottom window sash must open suffi-ciently to allow a clear vertical opening o...
Page 11 - Service Manual 11; Suggested Tool Requirements; Preparation of Chassis
Service Manual 11 Suggested Tool Requirements SCREWDRIVER (+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL Preparation of Chassis 1. Remove the screws that fasten the cabinet at both sides and at the back. 2. Slide the unit out from the cabinet by gripping the base pan handle and pulling forward while br...
Page 12 - 2 Room Air Conditioner
12 Room Air Conditioner INDOOR OUTDOOR Sill Support Nut Bolt 2 4 3 INDOOR OUTDOOR 12 6 7 2 5 Frame Guide About 1/2" Screw(Type A) Cabinet 6 2 About 1/2" Screw(Type B) 5 Screw(Type A) Sill support Sash track Front Angle Type C Screw(Type B) Sill support 3. Loosely assemble the sill support us...
Page 14 - Operation; Features; CAUTION: A slight heat odor may; REG-123A REG-71A
14 Room Air Conditioner • Designed for COOLING and HEATING.• Powerful and whispering cooling.• Slide-in and slide-out chassis for the simple instal- lation and service. • Side air-intake, side cooled-air discharge. • Built-in adjustable THERMOSTAT• Washable one-touch filter• Compact size• Reliable a...
Page 15 - Disassembly; Mechanical Parts
Service Manual 15 Disassembly Disassembly Mechanical Parts — Before the following disassembly, CONTROL BOX set to OFF and disconnect the power cord. 1. Front Grille 1. Open the lnlet grille upward .2. Remove the screw that fastens the front grille.3. Pull the front grille from the right side.4. Remo...
Page 16 - Air Guide and Turbo Fan; Air Handling Parts
16 Room Air Conditioner Disassembly TIMER E NERGY SAVER M ODE On/Off On/Off Fan Cool Heat Figure 17 Figure 18 Figure 19 Figure 20 4. Air Guide and Turbo Fan 1. Remove the front grille. (Refer to section 1) 2. Remove the cabinet. (Refer to section 2) 3. Remove the control box. (Refer to section 3) 4....
Page 17 - Service Manual 17; Overload Protector; Electrical Parts
Service Manual 17 6. Shroud 1. Remove the fan. (Refer to section 5)2. Remove the screw that fastens the shroud. 3. Remove the shroud. (See Figure 21) 4. Re-install the component by referring to the removal procedure, above. 7. Overload Protector 1. Remove the cabinet. (Refer to section 2) 2. Remove ...
Page 18 - SYNCHRONOUS MOTOR
18 Room Air Conditioner Disassembly 9. Capacitor 1. Remove the control box. (Refer to section 3)2. Remove the knobs and the screw that fasten control panel from control box. 3. Remove the screw that located in the front.4. Open the bottom side of control box.5. Remove the screw and the clamp that fa...
Page 19 - CAUTION: Discharge the refrigerant; Recovery; Refrigerating Cycle
Service Manual 19 Disassembly 13. Motor 1. Remove the cabinet. (Refer to section 2) 2. Remove the evaporator. (Refer to section 4) 3. Remove the orifice. (Refer to section 4) 4. Remove the blower. (Refer to section 4) 5. Remove the fan. (Refer to section 5) 6. Remove the control box cover and discon...
Page 21 - Figure 31A-Pulling Vacuum
Service Manual 21 Disassembly Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin ch -off tool capable of making a leak-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. A COMPOUND GAUGE EVAPORATOR(LOW PRESSURE SIDE) COMPRE...
Page 22 - Schematic Diagram; Wiring Diagram; ELECTRIC HEATING MODEL
22 Room Air Conditioner Schematic Diagram Schematic Diagram Wiring Diagram ■ ELECTRIC HEATING MODEL
Page 23 - Troubleshooting Guide; Piping System; ROOM AIR CONITIONER; EVAPORATOR COILS
Service Manual 23 Troubleshooting Guide Troubleshooting Guide Piping System Figure 32 is a brief description of the important components and their function in what is called the refrigerationsystem. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooli...
Page 24 - Unit runs but poor cooling.
24 Room Air Conditioner Troubleshooting Guide Troubleshooting Guide In general, possible trouble is classified in two kinds.The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective AirConditioning caused by a defect in the refrigeration circuit and i...
Page 25 - Fails to Start
Service Manual 25 Troubleshooting Guide Fails to Start Check circuit breakerand fuse. Gas leakage of feeler bulbof thermostat Check of control switch. Fan only fails to start. Improper wiring. Defect of fan motorcapacitor. Irregular motor resistance( ).Irregular motor insulation( ). Replacement of f...
Page 26 - Room Air Conditioner Voltage Limits
26 Room Air Conditioner Troubleshooting Guide COMPLAINT CAUSE REMEDY Check voltage at outlet. Correct if necessary. Check voltage to rotary switch. If none, check powersupply cord. Replace cord if circuit is open. Check switch continuity. Refer to wiring diagram forterminal identification. Replace s...
Page 27 - COMPLAINT
Service Manual 27 Troubleshooting Guide COMPLAINT CAUSE REMEDY Check the position of knob If not at the coldest set-ting, advance the knob to this setting and restartunit.Check continuity of the thermostat. Replace ther-mostat if circuit is open. Check the capacitor.Replace if not within ±10% of man...
