Instruction/ maintenance manual of the product REG-123A Heat Controller
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5RRP$LU&RQGLWLRQHU +($ 7&2175 2//(5,1& 02'(/6 5 EG-71A 6HUYLFH$QG3DUWV0DQXDO CAUTION webs • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL .
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 ollowed. ■ Incorrect operation due to ignoring instruction will cause har m or damage.
4 Room Air Conditioner Saf ety Precautions Do not modify or extend the po wer cord. • There is risk or fire or electric shock. Do not install, remove, or re-install the unit b y y ourself(customer). • There is risk of fire, electric shock, e xplosion, or injur y .
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 / 1 6 ) Model Dimension REG-71A REG-123A Outside Dimensions This symbol alerts you to the risk of electric shoc k.
6 Room Air Conditioner Specfications Pr oduct Specifications POWER SUPPLY COOLING CAPACITY (Btu/h) INPUT (W) RUNNING CURRENT (A) E.E.R (BTU/W.h) HEATING CAPACITY (Btu/h) INPUT (W) RUNNING CURRENT (A) .
Se r vice Ma n ual 7 Installation Installation Select the Best Location Installation Chec k 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.
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 forward while bracing the cabinet.
Se r vice Ma n ual 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 opening widths from 27" to 39".
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 opening widths from 22" to 36".
Se r vice Ma n ual 11 Suggested T ool 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 bracing the cabinet.
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.
Se r vice Ma n ual 13 Installation 13 8 Foam-Strip Screw(Type A) Screw(Type A) Power cord TI ME R E N E R G Y S A V E R MO DE O n /O f f O n /O ff Fa n C o o l H e a t T I M E R E N E R G Y S A V E R M O D E On/Off On/Off Fan Cool Heat TIMER ENERGY SAVER MODE On/Off On/Off Fan Cool Heat 10.
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.
Se r vice Ma n ual 15 Disassembly Disassembl y Mechanical P arts — 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.
16 Room Air Conditioner Disassembly T IM ER ENERG Y SAVER MODE On/Off On/Off Fan Cool H eat Figure 17 Figure 18 Figure 19 Figure 20 4. Air Guide and T urbo Fan 1. Remove the front grille. (Refer to section 1) 2. Remove the cabinet. (Refer to section 2) 3.
Se r vice Ma n ual 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.
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.
Se r vice Ma n ual 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.
20 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 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.
22 Room Air Conditioner Schematic Diagram Schematic Dia gram Wiring Diagram ■ ELECTRIC HEATING MODEL.
Se r vice Ma n ual 23 T roub leshooting Guide T r oub leshooting Guide Piping System Figure 32 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.
24 Room Air Conditioner 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.
Se r vice Ma n ual 25 T roub leshooting Guide Fails to Start Check circuit breaker and fuse. Gas leakage of feeler bulb of thermostat Check of control switch. Fan only fails to start. Improper wiring. Defect of fan motor capacitor . Irregular motor resistance ( ).
26 Room Air Conditioner T roub leshooting Guide COMPLAINT CAUSE REMEDY Check voltage at outlet. Correct if necessary. Check voltage to rotary switch. If none, check power supply cord. Replace cord if circuit is open. Check switch continuity. Refer to wiring diagram for terminal identification.
Se r vice Ma n ual 27 T roub leshooting Guide COMPLAINT CAUSE REMEDY Check the position of knob If not at the coldest set- ting, advance the knob to this setting and restart unit. Check continuity of the thermostat. Replace ther- mostat if circuit is open.
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If you already are a holder of Heat Controller REG-123A, 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 REG-123A.
However, one of the most important roles played by the user manual is to help in solving problems with Heat Controller REG-123A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Heat Controller REG-123A 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