Page 2 - SERVICE MANUAL; SAFETY PRECAUTIONS; CONTENTS
—2— 1. PREFACE 1.1 SAFETY PRECAUTIONS ...............................2 1.2 INSULATION RESISTANCE TEST.................2 1.3 SPECIFICATIONS ..........................................3 1.4 FEATURES .....................................................6 1.5 CONTROL LOCATIONS ..............................
Page 6 - • Designed for cooling only.; CONTROL LOCATIONS; • VENTILATION; • Built in adjustable THERMISTOR and THERMOSTAT.
1.4 FEATURES • Designed for cooling only. • Powerful and quiet cooling.• Top-down chassis for the simple installation and service. 1.5 CONTROL LOCATIONS 1.5.1 COOLING ONLY MODEL• OPERATION • VENTILATION Push the lever to the "CLOSE" position to cool, heat orrecirculate room air only. Pull th...
Page 7 - • OPERATION; Off; CAUTION
1.5.2 COOLING AND HEATING MODEL • OPERATION —7— A slight burning odor may come from the unitwhen first switching to HEAT after the coolingseason is over. This odor, caused by fine dustparticles on the heater, will disappear quickly.This is normal operation. Off - Turns the air conditioner off. Fan O...
Page 8 - DISASSEMBLY INSTRUCTIONS; unplugged from the wall receptacle.; Figure 1
—8— 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the inlet grille 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. 1)5. Re-install the component by referring to the removal procedure. 2.1.2 CABINET 1. Af...
Page 9 - Figure 7; AIR HANDLING PARTS; TURBO FAN; Remove the 4 screws which fasten the orifice.; Figure 4
Figure 7 —9— 2.2 AIR HANDLING PARTS 2.2.1 ORIFICE, HEATER ASSY AND TURBO FAN 1. Remove the front grille. (Refer to section 2.1.1)2. Remove the cabinet. (Refer to section 2.1.2)3. Remove the 2 screws which fasten the evaporator at the left side and the right side. (See Fig. 4) 4. Move the evaporator ...
Page 10 - . Leave the valve in place after; Figure 9
—10— 2.2.3 SHROUD 1. Remove the fan. (Refer to section 2.2.2)2. Remove the screw which fastens the shroud.3. Remove the shroud. (See Fig. 9)4. Re-install the components by referring to the removal procedures, above. 2.3 ELECTRICAL PARTS 2.3.1 MOTOR 1. Remove the cabinet. (Refer to section 2.1.2)2. R...
Page 11 - If the supply cord of this appliance is damaged, it
—11— 2.3.4 POWER CORD 1. Remove the control box. (Refer to section 2.1.3)2. Unfold the control box. (Refer to section 2.3.3)3. Disconnect the grounding screw from the control box. 4. Disconnect 2 receptacles.5. Remove a screw which fastens the clip cord.6. Pull the power cord. (See Fig. 13)7. Re-ins...
Page 12 - REFRIGERATION CYCLE
—12— 2.4 REFRIGERATION CYCLE 2.4.1 CONDENSER 1. Remove the cabinet. (Refer to section 2.1.2)2. Remove the brace and the shroud cover. (Refer to section 2.2.1) 3. Remove the 5 screws which fasten the condenser.4. After discharging the refrigerant completely into a Freon TM Recovery System, unbraze th...
Page 13 - NOTES
—13— — 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 ventingthe Freon TM . Leave the valve in ...
Page 14 - Figure 18A-Pulling Vacuum
—14— Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pinch-off toolcapable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Servicevalve. A COMPOUND GAUGE EVAPORATOR(LOW PRESSURE SIDE) COMPRESSOR CAPILLARY TUBE CONDENSE...
Page 15 - INSTALLATION REQUIREMENTS; ELECTRICAL SERVICE; ITEM
—15— 3. INSTALLATION 3.1 INSTALLATION REQUIREMENTS If you use an existing wall sleeve, you should measure itsdimensions.Install the new air conditioner according to these installationinstructions to achieve the best performance. All wall sleevesused to mount the new air conditioner must be in goodst...
Page 16 - ITEMS IN INSTALLATION HARDWARE; HOW TO INSTALL; Wall Sleeve
—16— 3.2 INSTALLATION • Pick a location which will allow the conditioned air to blow into the area you want. Good installation withspecial attention to the proper position of the unit willlessen the chance that service will be needed. ITEMS IN INSTALLATION HARDWARE You may not need all parts in the ...
Page 17 - or; Wall; • Air conditioners covered in this manual pose
—17— 3.3 PROCEDURE A If you are using a new USC sleeve in conjunctionwith your unit, skip to step 3. Otherwise, install theplastic grille from the kit. Cut the plastic grille to fitthe rear opening of the existing sleeve. Place theplastic grille to the inside of the wall sleeve at therear flange. Fa...
Page 19 - PROCEDURE B
—19— PROCEDURE B To assemble trim, snap the tab of each piece intothe slot of the other piece as shown below. Slidetrim over the front of the air conditioner until trim isflush with sleeve as shown below. 8 Trim (2 ea) Wall FIG. 31 • Air conditioners covered in this manual pose an excessive weight h...
Page 21 - PROCEDURE C; Install the new unit into the wall sleeve; • Air conditioners covered in this manual pose an
—21— PROCEDURE C Remove the backing from the 13" shim strips andattach them as shown below in Fig. 39. The higherportion of shim is to be placed in front of the rib onthe base of wall sleeve. Install the new unit into the wall sleeve To assemble trim, snap the tab of each piece intothe slot of t...
Page 22 - USE OF EXTENSION CORDS; ELECTRICAL REQUIREMENTS
—22— Do not under any circumstances cut or remove the grounding prong from the plug. Line Cord Plug Use Wall Receptacle Power Supply Power supply cord with3-prong grounding plug Standard 125V, 3-wire groundingreceptacle rated 15A, 125V AC Paralleltype Use 15 AMP timedelay fuse or 15 AMPcircuit break...
Page 23 - TROUBLESHOOTING GUIDE; OUTSIDE DIMENSIONS
—23— 4. TROUBLESHOOTING GUIDE 4.1 OUTSIDE DIMENSIONS 19- 21 / 32 " (499mm) 24- 21 / 32 " (626mm) 14- 13 / 32 " (366mm) CONDENSER COILS EVAPORATOR COILS FAN MOTOR : REFRIGERANT FLOW TURBO FAN CAPILLARY TUBE COMPRESSOR 4.2 PIPING SYSTEM Following is a brief description of the important com...
Page 24 - TROUBLESHOOTING GUIDE; Unit is running but cooling is ineffective
—24— 4.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two causes.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 improper application. Unit is running...
Page 25 - Fails to Start
—25— Fails to Start Check circuit breakerand fuse. Gas leakage at feeler bulbof thermostat Check control switch. Only fan fails to start. Improper wiring. Defect of fan motorcapacitor. Irregular motor resistance( ).Irregular motor insulation( ). Replacement of fan motor Regular but fails to start Re...
Page 27 - ROOM AIR CONDITIONER VOLTAGE LIMITS
—27— NAME PLATE RATING MINIMUM MAXIMUM 115V 103.5V 126.5V 208/230V 187V 253V COMPLAINT CAUSE REMEDY Check voltage. See the limits on the preceding.page. If not within limits, call an electrician. Check the wire connections, if loose, repair orreplace the terminal. If wires are off, refer to wiringdi...
Page 28 - Voltage
—28— COMPLAINT CAUSE REMEDY Check the voltage. See the limits on the preced-ing page. If not within limits, call an electrician. Check overload, if externally mounted.Replace if open. (If the compressor temperatureis high, remove the overload, cool, and retest.) If not running, determine the cause. ...
Page 29 - WIRING DIAGRAM; PER SET
—29— 5. SCHEMATIC DIAGRAM 5.1 CIRCUIT DIAGRAM • MODEL : BD-81/BD-101/BD-123 1 3 7 4 2 6 5 WIRING DIAGRAM 3854A20407A MOTOR COMP. CAPACITOR DC PCB ASSEMBLY THERMISTOR AIR FILTERASSEMBLY AC PCB ASSEMBLY SWITCH H.V. ASSEMBLY BK CN-MOTOR CN-PWR DC12V ZNR01J CN-12V CN-HVB RY-COMP 3 4 FUSE 250V/T2A (115V/...
Page 32 - REPLACEMENT PARTS LIST; DESCRIPTION
G 249950 CONTROL BOX ASSY, SINGLE R 268714 PWB(PCB) ASSEMBLY, MAIN(AC) R 268712 PWB(PCB) ASSEMBLY, MAIN(DC) R 264110 POWER CORD ASSY R 263230 THERMOSTAT ASSY R W0CZZ CAPACITOR, DRAWING R 267110 REMOTE, CONTROLLER R 237200 PANEL ASSY, CONTROL R B 554160 COMPRESSOR R 550140 ISOLATOR, COMP R 567502 O.L...
Page 35 - THE QUALITY LEADER IN CONDITIONING AIR
Specifications and performance data subject to change without notice. HEAT CONTROLLER, INC. 1900 WELLWORTH AVENUE • JACKSON, MICHIGAN 49203 THE QUALITY LEADER IN CONDITIONING AIR P/No.: 3828A20040D
