Related Manuals for COMFORT-AIRE Comfort-Cire RAD-121A
Summary of Contents for COMFORT-AIRE Comfort-Cire RAD-121A
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Page 1: Service Manual
AD-121A AD-123A AD-141A ADS-101A SERVICE MANUAL CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL. -
Page 2: Table Of Contents
Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions............................3 Dimensions ..............................6 Outside Dimensions ...........................6 Product Specifications ..........................7 Installation ...............................8 Select the Best Location ..........................8 Installation Check ............................8 How to Secure the Drain Pipe ........................8 How to Install..............................9 Operation ..............................13 Location and Function of Controls ......................13 Remote Control Operations ........................14 Disassembly ..............................15 Mechanical Parts............................15... -
Page 3: Safety Precautions
Safety Precautions Plug in the power plug Do not operate or stop the Do not damage or use an properly. unit by inserting or pulling unspecified power cord. out the power plug. • Otherwise, it will cause • It will cause electric shock or •... - Page 4 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 instructions will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury.
- Page 5 Safety Precautions If water enters the product, turn off the the Do not clean the air conditioner with water. power switch of the main body of appliance. Contact service center after taking the power- plug out from the socket. • It will cause electric shock or failure of •...
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Page 6: Dimensions
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. This symbol indicates special notes. NOTICE Outside Dimensions 560(22 ") 600(23 ") - Page 7 Specfications Product Specifications Product Specifications Product Specifications Product Specifications MODELS RAD - 121A ITEMS 1Ø, 115V, 60Hz POWER SUPPLY COOLING CAPACITY (Btu/h) 12,000 INPUT 1.220 RUNNING CURRENT 11.0 (BTU/W . h) E.E.R OPERATING 26.7(DB)* 19.4(WB)** INDOOR ( C) CONDITION 35(DB)* 23.9(WB)** OUTDOOR ( C) REFRIGERANT (R-22) CHARGE...
- Page 8 Specfications Product Specifications Product Specifications Product Specifications Product Specifications MODELS RAD - 123A ITEMS 1Ø, 208/230 V, 60Hz POWER SUPPLY COOLING CAPACITY (Btu/h) 11,500/12,000 INPUT 1,170/1,220 RUNNING CURRENT 6.0/5.6 (BTU/W . h) E.E.R 9.8/9.8 OPERATING 26.7(DB)* 19.4(WB)** INDOOR ( C) CONDITION 35(DB)* 23.9(WB)**...
- Page 9 Specfications Product Specifications Product Specifications Product Specifications Product Specifications MODELS RAD - 141A ITEMS 1Ø, 115 V, 60Hz POWER SUPPLY COOLING CAPACITY (Btu/h) 13,800 INPUT 1.390 RUNNING CURRENT (BTU/W . h) E.E.R OPERATING 26.7(DB)* 19.4(WB)** INDOOR ( C) CONDITION 35(DB)* 23.9(WB)** OUTDOOR ( C) REFRIGERANT (R-22) CHARGE...
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Page 10: Product Specifications
Specfications Product Specifications Product Specifications Product Specifications Product Specifications MODELS RADS - 101A ITEMS 1Ø, 115 V, 60Hz POWER SUPPLY COOLING CAPACITY (Btu/h) 10,000 INPUT RUNNING CURRENT (BTU/W . h) E.E.R 10.8 OPERATING 26.7(DB)* 19.4(WB)** INDOOR ( C) CONDITION 35(DB)* 23.9(WB)** OUTDOOR ( C) REFRIGERANT (R-22) CHARGE... -
Page 11: Installation
Installation Installation Select the Best Location 1. To prevent vibration and noise, make sure the unit is installed securely and firmly. 2. Install the unit where the sun does not shine directly on the INSIDE OUTSIDE unit. FENCE 3. The outside of the cabinet must extend outward for at least AWNING 11"... -
Page 12: How To Install
Installation How to Install INNER Window Requirements SILL All supporting parts should be secured to NOTICE firm wood, masonry, or metal. 1. This unit is designed for installation in standard double hung windows with actual opening widths of 22" to 36". The upper and lower sash must open sufficiently to allow a clear vertical opening of 15"... -
Page 13: Preparation Of Chassis
Installation PREPARATION OF CHASSIS Shipping 1. Remove the screws which fasten the cabinet at both Screws sides and at the back. 2. Slide the unit from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet. - Page 14 Installation 3. Loosely assemble the Sill Support using the parts in Figure 7. INDOOR OUTDOOR Sill Support Bolt Figure 7 4. Select the position that will place the Sill Support near the outer most point on sill (See Figure 8) Frame Guide Screw(Type A) NOTICE...
- Page 15 Installation 10. Slide the unit into the cabinet.(See Figure 11) CAUTION: For security purpose, reinstall screws (Type A) at cabinet's sides. Power cord Screw(Type A) Screw(Type A) Figure 11 11. Cut the Foam-Strip to the proper length and insert between the upper window sash and the lower window sash.
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Page 16: Operation
Operation Operation • DESIGNED FOR COOLING ONLY • POWERFUL COOLING • TOP-DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVICE • BUILT-IN ADJUSTABLE THERMOSTAT • WASHABLE ONE-TOUCH FILTER • COMPACT SIZE Location and Function of Controls CAUTION: If you turn off the air conditioner or switch from cooling to the fan, wait at least 3 minutes before setting to cooling again. -
Page 17: Remote Control Operations
Operation Remote Control Operations CAUTION: The Remote Controller will not function properly if strong light strikes the sensor window of the air conditioner or if there are obstacles between the Remote Controller and the air conditioner. The controls look like this: Controls Power Temp... -
Page 18: Disassembly
Disassembly Disassembly — Before the following disassembly, POWER SWITCH set to OFF and disconnect the power cord. Mechanical Parts 1. FRONT GRILLE 1. Open the lnlet grille upward or downward. 2. Remove the screw which fastens the front grille. 3. Pull the front grille from the right side. 4. -
Page 19: Air Handling Parts
Disassembly Air Handling Parts 1. AIR GUIDE AND BLOWER 1. Remove the front grille. 2. Remove the cabinet. 3. Remove the control box. 4. Remove the 3 screws which fasten the brace. 5. Remove the brace. 6. Remove the 2 screws which fasten the evaporator. 7. -
Page 20: Electrical Parts
Disassembly 3. MOTOR 1. Remove the cabinet. 2. Remove the evaporator. 3. Remove the orifice. 4. Remove the blower. 5. Remove the fan. 6. Remove the control box cover and housing of the motor in the control box. 7. Remove the 2 screws which fasten the motor from the mount motor. - Page 21 Disassembly 3. CAPACITOR MODEL : ROTARY SWITCH TYPE MODEL 1. Remove the control box. 2. Remove the knobs and the screw which fasten control panel from control box. 3. Remove the screw which is located in the front. 4. Open the bottom side of control box. 5.
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Page 22: Refrigerating Cycle
Disassembly 6. ROTARY SWITCH MODEL : ROTARY SWITCH TYPE MODEL 1. Remove the control box. 2. Open the control box. 3. Remove the 2 screws which fasten the rotary switch. 4. Disconnect all the leads of the rotary switch terminals. 5. -
Page 23: Capillary Tube
Disassembly 2. EVAPORATOR 1. Remove the cabinet. 2. Remove the 2 screws which fasten the evaporator. 3. Move the evaporator sideways carefully. 4. After discharging the refrigerant completely, unbraze the interconnecting tube at the evaporator connections. 5. Remove the evaporator carefully. 6. - Page 24 Disassembly Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 33B-Charging Figure 33A-Pulling Vacuum Service Manual 24...
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Page 25: Schematic Diagram
Schematic Diagram Schematic Diagram Wiring Diagram MODEL : ROTARY SWITCH TYPE MODEL P OWE R INP UT B K (B R ) WH(B L) (P lain) (R ibbed) R OT AR Y S WIT C H G N(G N/Y L) MOT OR OR (B R ) G N(G N/Y L) - Page 26 Schematic Diagram Circuit Diagram MODEL : TOUCH & REMOTE CONTROL TYPE MODEL LOCATION Q'TY DESCRIPTION PER SET POWER CORD ASSEMBLY FAN MOTOR COMPRESSOR DISPLAY P.W.B ASSEMBLY MAIN P.W.B ASSEMBLY THERMISTOR CAPACITOR OWERLOAD PROTECTOR Service Manual 26...
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Page 27: Electronic Control Device
Schematic Diagram Electronic Control Device 27 Room Air Conditioner... -
Page 28: Components Location(For Main P.w.b Asm)
Schematic Diagram Components Location(For Main P.W.B ASM) Service Manual 28... -
Page 29: Troubleshooting Guide
Troubleshooting Guide Troubleshooting Guide Piping System CONDENSER COIL CAPILLARY TUBE MOTOR COMPRESSOR BLOWER EVAPORATOR COIL Figure 38 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. ROOM AIR CONITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS... -
Page 30: Troubleshooting Guide
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 Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but poor cooling. - Page 31 Troubleshooting Guide Fails to Start Check of circuit breaker Check of power source. and fuse. Check of control panel Check control panel. setting. Compressor fails only to Fan only fails to start. start. Improper wiring. Improper thermistor Drop of power voltage. setting Defect of fan motor capacitor.
- Page 32 Troubleshooting Guide MODEL : BG8000ER, WG8000RY4, WG1000RY4 ELECTRIC PARTS TROUBLESHOOTING GUIDE: Possible Trouble 1 • The unit does not operate. • Check the Fuse. Is the Trans input power • Check the wiring diagram. AC 115V? • Check the Main Is the Trans output power Is shorted the Trans.
- Page 33 Troubleshooting Guide Possible Trouble 2 • The compressor does not operate. Is Temp. setting set lower than Room • Set the Temp. setting to lower Temp. Temp.-0.5 C? Is the voltage No.10 Is the voltage N0.7 of Is the Unit for 3 minutes of IC01M 0V? IC01M DC 5V? delay?
- Page 34 Troubleshooting Guide • Romote controller does not operate. Possible Trouble 5 Is the voltage of Battery • Exchange the battery. about over 2.3V? Is the voltage No.16 • Check the P.W.B pattern. of CN-DISP1 on Main P.W.B Ass'y DC 5V? •...
- Page 35 Troubleshooting Guide ROOM AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 115V ± 10% 103.5V 126.5V COMPLAINT CAUSE REMEDY Fan motor will not run. No power Check voltage at outlet. Correct if none. Power supply cord Check voltage to rotary switch. If none, check power supply cord.
- Page 36 Troubleshooting Guide COMPLAINT CAUSE REMEDY Fan motor noise. If cracked, out of balance, or partially missing, replace it. Blower If cracked, out of balance, or partially missing, replace it. Loose set screw Tighten it. Worn bearings If knocking sounds continue when running or loose, replace the motor.
- Page 37 Troubleshooting Guide COMPLAINT CAUSE REMEDY Compressor cycles on Voltage Check the voltage. See the limits on the overload. preceding page. If voltage is not within these limits, call an electrician. Overload Check overload, if externally mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool, and retest.) Compressor cycles on Fan motor...
- Page 38 04/18/07...
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