Related Manuals for Heat Controller Comfort-Aire BHD-252
Summary of Contents for Heat Controller Comfort-Aire BHD-252
- Page 1 HEAT CONTROLLER, INC. Dehumidifier MODELS: BHD-252 BHD-652 Service Manual CAUTION -Before servicing the unit, read the "safety precautions" in this manual. -Only for authorized service personnel.
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Page 2: Table Of Contents
CONTENTS 1. PREFACE 1.1 SAFETY PRECAUTIONS ...........................3 1.2 FEATURES AND DIMENSIONS ........................3 1.2.1 FEATURES............................3 1.2.2 DIMENSIONS ............................3 1.3 SPECIFICATIONS ............................4 1.4 CONTROL TYPE ............................5 1.4.1 MECHANICAL TYPE.........................5 1.4.2 ELECTRONIC TYPE .........................5 1.5 HOW TO OPERATE DEHUMIDIFIER ......................6 1.5.1 HOW DOES THE DEHUMIDIFIER WORK? ..................6 1.5.2 LOCATION FOR THE DEHUMIDIFIER.....................6 1.5.3 MICRO SWITCH..........................6 1.5.4 AUTO DEFROST..........................6... -
Page 3: Preface
1. PREFACE This Service Manual provides various service information, including the mechanical and electrical parts. This dehumidifier was manufactured and assembled under the strict quality control procedures. The refrigerant is charged at the factory. Be sure to read the safety precaution prior to servicing the unit. 1.1 SAFETY PRECAUTIONS •... -
Page 4: Specifications
1.3 SPECIFICATIONS MODELS BHD-252 BHD-652 ITEMS CAPACITY(Liter/24hrs ) POWER SUPPLY(Phase,V,Hz) 1Ø, 220V-240V,50Hz INPUT(W) RUNNING CURRENT(A) ENERGY FACTOR(L/kw.h) REFRIGERANT R134a R410a REFRIGERANT CHARGE, oz(g) 5.82(165) 7.76(220) THERMISTOR OPEN 33.8˚F(1±0.5°C) CLOSE 50˚F(10±0.5°C) SOLENOID VALVE Using Temp/Humid.:-4~122˚F(-20~50°C)/95%RH Rating:7W/90mA COMPRESSOR MODEL No. NR45HAEG GA066PAB... -
Page 5: Control Type
1.4 CONTROL TYPE Bucket Full Indicator • This light glows when the water bucket is full and needs to be emptied. Auto Restart • Once power is restored after a power outage, the unit returns to its previous operation setting after a 2 minute delay. -
Page 6: How To Operate Dehumidifier
ON/OFF repeatedly. In this case, please check your room temperature conditions and stop the unit. NOTE: The low temperature operation feature in the BHD-252 and BHD-652 models will continuously cycle up to a temperature of 6°C. -
Page 7: Humidity Controller
1.5.5 HUMIDITY CONTROLLER 5(42%) 42% R.H 1.5.5.1 Mechanical Type 4(50%) 6(35%) The humidity control can be set anywhere between Off and Max for normal operation. 3(60%) 7(30%) If you need more dehumidification, turn the Humidity Control toward Max. If you need less dehumidification, turn the Humidity Control toward Off. -
Page 8: Circuit Diagram
2. CIRCUIT DIAGRAM • MODEL : BHD-252 BK HI WH BL N PART NO. Q'TY DESCRIPTION PER SET MARKS BHD-252 6411A20044B POWER CORD ASSEMBLY 4681A20040N MOTOR ASSEMBLY 6748C-0003C PTC ASSEMBLY 5416A20009A COMPRESSOR, SET 6750C-0005M 6871A20600B PWB(PCB) ASSEMBLY, DISPLAY 6877A30013L SENSOR ASSEMBLY... - Page 9 • MODEL : BHD-652 PART NO. Q'TY DESCRIPTION PER SET MARKS BHD-652 6411A20044B POWER CORD ASSEMBLY 4681A20040L MOTOR ASSEMBLY 0CZZA20005U CAPACITOR TBZ30503801 COMPRESSOR, SET 6750U-L047A OLP. 6871A20600B PWB(PCB) ASSEMBLY, DISPLAY SENSOR ASSEMBLY 6877A30013L 6600A30003C SWITCH ASSEMBLY, MICRO 6871A20888E PWB(PCB) ASSEMBLY, MAIN COIL ASSEMBLY, SOLENOID 6421A90001H S: SERVICE PARTS...
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Page 10: Disassembly Instructions
3. DISASSEMBLY INSTRUCTIONS 3.1 MECHANICAL PARTS 3.1.1 BUCKET AND AIR FILTER 1. Turn the Humidity Control off(Mechanical type) or press the power button off. (Electronic type) 2. Disconnect the power supply. 3. Remove the bucket. (See Figure 8) 4. Pull out the air filter. (See Figure 9) Figure 8 Figure 9... -
Page 11: Control Parts
3.2 CONTROL PARTS 3.2.1 POWER CORD ASSEMBLY 1. After opening the control box, remove the screw that holds the ground wire. (See Figure 14) 2. Disconnect the remaining leads of the power cord from the PWB(PCB) ASSEMBLY, MAIN, then remove it from the control box. Figure 14 3.2.2 SENSOR ASSEMBLY 1. -
Page 12: Coil Assembly, Solenoid
3.2.6 COIL ASSEMBLY, SOLENOID 1. Disconnect the housing of the COIL ASSEMBLY, SOLENOID from the PCB(PWB) ASSEMBLY, MAIN. 2. Remove the screw that fastens the COIL ASSEMBLY, SOLENOID. (See Figure 18) 3. Pull it out upwards. Figure 18 3.2.7 CONTROL PANEL 1. -
Page 13: Fan And Motor
3.2.8 FAN AND MOTOR 1. Turn the nut left and full out the Fan by hands carefully. 2. Remove 2 screws that fasten Heat Exchange. 3. Lift the H/E and open the H/E around 45 degree clockwise carefully. (See Figure 20) 4. -
Page 14: Refrigerating Cycle
(See Figure 26) Figure 26 3.3.2 PTC OR OVERLOAD PROTECTOR (OLP) FOR RECIPROCATING COMPRESSOR (BHD-252) 1. Discharge the refrigerant by using a refrigerant Recovery System. 2. After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections. -
Page 15: How To Replace Refrigeration System
If high vacuum equipment is used, just crack USED ONLY FOR THE MODEL valves A and B for a few minutes, then open BHD-252 slowly with the two full turns counterclockwise. NOTE: THE REFRIGERANT R410a IS This will keep oil from foaming and being drawn... - Page 16 Equipment needed: Vacuum pump, charging cylinder, manifold gauge, brazing equipment. pinch-off tool capable of making a vapor-proof seal, leak detector, tubing cutter, hand tools to remove components, service valve. EVAPORATOR ASSEMBLY (LOW PRESSURE SIDE) CONDENSER ASSEMBLY (HIGH PRESSURE SIDE) COMPOUND GAUGE MANIFOLD GAUGE CAPILLARY...
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Page 17: Troubleshooting Guide
4. TROUBLESHOOTING GUIDE CONDITION CAUSE REMEDY 1. Dehumidifier does not start. (Both No power Check power supply at outlet. compressor and fan motor do not Correct if none. operate.) Poor plug contact at outlet. Install plug properly or replace it. Bucket is full. - Page 18 CONDITION CAUSE REMEDY 5. Noisy operating If cracked, out of balance, or partially missing, replace it Loose foreign material inside the housing. Remove it. Tube hits frame. Adjust tubing routine carefully. Fan blade hits frame Check Motor Mount. If loose, tighten it. Internal compressor noise.
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Page 19: Exploded Views
5. EXPLODED VIEWS • MODEL: BHD-252 149980 268711-2 349600 554030 354210 359012 264110 346811 249950 435300 165010 131400 135312 238310 235512 268711-1 436500 552204 152302 35211A 266010 352113 558511 752140 330870 263230 130410 144410 550140 554160 567502 148391 —19—... - Page 20 • MODEL: BHD-652 149980 W0CZZ-2 349600 554030 354210 359012 268711-2 346811 249950 435300 264110 131400 165010 135312 238310 235512 268711-1 436500 552204 35211A 152302 266010 352113 752140 330870 567502 130410 554160 144410 148391 550140 —20—...
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Page 21: Replacement Parts List
6. REPLACEMENT PARTS LIST • MODEL: BHD-252 PART NO. LOCATION DESCRIPTION REMARK BHD-252 130410 BASE ASSEMBLY 3041A10042C 131400 CABINET 3090A10042K 135312 FRONT GRILLE,ASSEMBLY 3531A18012V 330870 DRAIN PAN ASSEMBLY 3087A10019D 148391 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 165010 SENSOR ASEMBLY 6877A30013L... - Page 22 • MODEL: BHD-652 PART NO. LOCATION DESCRIPTION REMARK BHD-652 130410 BASE ASSEMBLY 3041A10042A 131400 CABINET 3090A10042K 135312 FRONT GRILLE,ASSEMBLY 3531A18012X 330870 DRAIN PAN ASSEMBLY 3087A10019C 148391 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 165010 SENSOR ASEMBLY 6877A30013L W0CZZ-2 CAPACITOR 0CZZA20005U 249950 CONTROL BOX,ASSEMBLY 4995A20622M 264110...
- Page 23 MEMO —23—...
- Page 24 MEMO —24—...
- Page 25 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.: MFL38891304...