Instruction/ maintenance manual of the product RAD-81A Heat Controller
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5RRP$LU&RQGLWLRQHU +($ 7&2175 2//(5,1& AD-1 01 A CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
2 Room Air Conditioner Air Conditioner Ser vice Manual T ABLE OF CONTENTS Safety Precautions ..........................................................................................................................................3 Dimensions .......
Ser vice Manual 3 Saf ety Precautions Safety Precautions T o pre v ent injur y to the user or other people and proper ty damage, the f ollowing instructions must be f ollow ed. Incorrect ope r ation due to igno r ing inst r uctions will cause ha r m or damag e .
4 Room Air Conditioner Saf ety Precautions Plug in the power plug properl y . • Otherwise , it will cause elect r ic sho c k or fire. Do not operate or stop the unit b y inserting or pulling out the power plug. • It will cause electric shock or fire.
Ser vice Manual 5 Saf ety Precautions CAUTION • • • • • If water enters the pr oduct, turn off the the power s witch of the main body of appliance. Contact service center after taking the power - plug out from the soc ket. • It will cause electric shock or f ailure of machine.
6 Room Air Conditioner Dimensions Dimensions Outside Dimensions This symbol alerts you to the risk of electric shoc k. This symbol alerts you to hazar ds that could cause harm to the air conditioner .
Se r vice Ma n ua l 7 Specfications Specfications Pr oduct Specifications MODELS MODELS ITEMS ITEMS Se r Se r POWER SUPPLY POWER SUPPLY COOLING CAPACITY COOLING CAPACITY (Btu/h) (Btu/h) INPUT (W) RUNNING CURRENT (A) E.
Se r vice Ma n ua l 8 Specfications Specfications Pr oduct Specifications POWER SUPPLY POWER SUPPLY COOLING CAPACITY COOLING CAPACITY (Btu/h) (Btu/h) INPUT (W) RUNNING CURRENT (A) E.
Se r vice Ma n ua l 9 Specfications Specfications Pr oduct Specifications POWER SUPPLY POWER SUPPLY COOLING CAPACITY COOLING CAPACITY (Btu/h) (Btu/h) INPUT (W) RUNNING CURRENT (A) E.
10 Room Air Conditioner Installation Installation Select the Best Location Installation Chec k How to Secure the Drain Pipe 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 unit.
Se r vice Ma n ual 11 Installation How to Install Window Requirements All supporting parts should be secured to 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".
12 Room Air Conditioner Installation PREP ARA TION OF CHASSIS 1. Remove the screws which 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 forward while bracing the cabinet.
Se r vice Ma n ual 13 Installation INDOOR OUTDOOR Sill Support Nut Bolt INDOOR OUTDOOR Frame Guide About 1/2" Screw(Type A) Cabinet About 1/2" Screw(Type B) Screw(Type A) Sill support Sash track Front Angle Type C Screw(Type B) Sill support 3.
Screw(Type A) Screw(Type A) Power cord Foam-Strip Window Locking Bracket 10. Slide the unit into the cabinet.(See Figure 11 ) 11. Cut the F oam- S trip to the proper length and insert between the upper window sash and the lower window sash. (See Figure 12 ) 12.
Operation Location and Function of Contr ols CA UTION: If y ou turn off the air conditioner or switch fr om cooling to the fan, wait at least 3 minutes bef ore setting to cooling again. FOR NORMAL COOLING 1. T urn the operation s witch to the High Cool or the Lo w Cool setting.
The controls look like this: Controls Auto Swing Pow e r T emp Fan Speed Timer Mode Energy Saver 1 2 5 4 3 6 Remote Contr ol Operations 1. P ower • To turn the Set ON, push the button. To turn the Set OFF, push the button again. • This button takes priority over any other buttons.
Disassembly Disassem b l y Mechanical Parts — Before the following disassembly, POWER SWITCH set to OFF and disconnect the power cord. 1. F R ONT GRILLE 1. Open the lnlet grille upward or downward. 2. Remove the screw which fastens the front grille.
18 Room Air Conditioner Disassembly Air Handling P ar ts — 7 — 1 . AIR GUIDE AND BL O WER 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.
Se r vice Ma n ual 19 Electrical P ar ts 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.
3. CAP A CIT OR MODEL : ROTARY SWITCH TYPE MODEL MODEL : TOUCH & REMOTE CONTROL TYPE MODEL 4. THERMOST A T MODEL : ROTARY SWITCH TYPE MODEL Disassembly 20 Room Air Conditioner 1. Remove the control box. 2. Remove the screw which fasten control panel from control box.
Se r vice Ma n ual 21 Disassembly 6. RO T AR Y SWITCH MODEL : ROTARY SWITCH TYPE MODEL 7. PO WER CORD Refrigerating Cycle CA UTION: Discharge the refrigerant system using a 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 .
22 Room Air Conditioner Disassembly — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to Discharge the refrigerant system using a 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 .
Se r vice Ma n ual 23 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.
2 4 Room Air Conditioner Schematic Dia gram Wiring Diagram Schematic Diagr am POWER CORD ASSY FAN MOTOR COMPRESSOR ROTARY SWITCH THERMOSTAT CAPACITOR OVERLOAD PROTECTOR 1 2 3 4 5 6 7 1 1 1 1 1 1 1 S S S S S S S LOCATION NO. DESCRIPTION REMARKS Q'TY PER SET S: Service Parts N: Non Service Parts MODEL : ROTARY SWITCH TYPE MODEL 8 P.
Se r vice Ma n ual 2 5 Schematic Diagr am Cir cuit Diagram MODEL : TOUCH & REMOTE CONTROL TYPE MODEL LOCATION NO. 1 2 3 4 5 6 7 8 Q'TY PER SET 1 1 1 1 1 1 1 1 DESCRIPTION POWER CORD ASSEMBLY FAN MOTOR COMPRESSOR DISPLAY P.W.B ASSEMBLY MAIN P.
26 Room Air Conditioner Electr onic Control De vice Schematic Diagram.
Se r vice Ma n ual 2 7 Components Location(For Main P .W .B ASM) Schematic Diagr am.
28 Room Air Conditioner T roub leshooting Guide T r oub leshooting Guide Piping System 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.
Se r vice Ma n ual 29 T roub leshooting Guide T r oubleshooting 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.
30 Room Air Conditioner T roub leshooting Guide Fails to Start Improper thermistor setting Loose terminal connection Improper wiring Check of power source. Drop of power voltage. Capacitor check. Replacement. Check of control panel setting. Compressor fails only to start.
Se r vice Ma n ual 31 T roub leshooting Guide ■ MODEL : BG8000ER, WG8000RY4, WG1000RY4 ELECTRIC P ARTS TR OUBLESHOO TING GUIDE: P ossible T r ouble 1 • The unit does not operate. Is the Trans input power AC 115V? Is the Trans output power about AC 14V? Is shorted the Trans.
32 Room Air Conditioner T roub leshooting Guide Is Temp. setting set lower than Room Temp.-0.5 ° C? Is the voltage No.10 of IC01M 0V? • Exchange IC01M. • Set the Temp. setting to lower Temp. • Wait 3 Minutes Is the Unit for 3 minutes delay? • Exchange MAIN P.
Se r vice Ma n ual 33 T roub leshooting Guide Is the voltage of Battery about over 2.3V? • Exchange Receiver Ass'y. Is the connection of CN-DISP1 all right? Is the voltage No.16 of CN-DISP1 on Main P.W.B Ass'y DC 5V? • Exchange the battery.
34 Room Air Conditioner T roub leshooting 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.
Se r vice Ma n ual 35 T roub leshooting Guide COMPLAINT CAUSE REMEDY Fan motor noise. Fan 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.
36 Room Air Conditioner 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.
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PART NO RAD-81A RAD-101A 130410 BASE ASSEMBLY,SINGLE 3041A30011D 3041A30005 P R 13091 0 CABINET ASSY,SINGLE 3091A30005R R 13531 2 GRILLE ASSY,FRONT(SINGLE) 3531A29018B R 13531 3 GRILLE ASSY,INLET 3530.
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An important point after buying a device Heat Controller RAD-81A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Heat Controller RAD-81A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Heat Controller RAD-81A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Heat Controller RAD-81A you will learn all the available features of the product, as well as information on its operation. The information that you get Heat Controller RAD-81A will certainly help you make a decision on the purchase.
If you already are a holder of Heat Controller RAD-81A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Heat Controller RAD-81A.
However, one of the most important roles played by the user manual is to help in solving problems with Heat Controller RAD-81A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Heat Controller RAD-81A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
