Heat Controller Inc.BHD-301-C user manual

User manual for the device Heat Controller Inc.BHD-301-C

Device: Heat Controller Inc.BHD-301-C
Category: Dehumidifier
Manufacturer: Heat Controller
Size: 4.29 MB
Added : 8/3/2013
Number of pages: 27
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Summary of the content on the page No. 1

HEAT CONTROLLER, INC.
Dehumidifier
MODELS: BHD-301-C
BHD-501-B
BHD-651-C
Service Manual
CAUTION
-Before servicing the unit, read the "safety precautions" in this manual.
-Only for authorized service personnel.

Summary of the content on the page No. 2

CONTENTS 1. PREFACE 1.1 SAFETY PRECAUTIONS...........................................................................................................................3 1.2 FEATURES AND DIMENSIONS ................................................................................................................3 1.2.1 FEATURES........................................................................................................................................3 1.2.2 DIMENSIONS ......................

Summary of the content on the page No. 3

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 • Disconnect the power supply before servicing or replacing any component. • Do not cut off the grounding prong or alter the plug in any manner. 1.2 FEATURES

Summary of the content on the page No. 4

1.3 SPECIFICATIONS MODELS BHD-301-C BHD-501-B BHD-651-C ITEMS CAPACITY(Pints/24hrs) 30 50 65 POWER SUPPLY(Phase,V,Hz) 1Ø, 115V,60Hz INPUT(W) 560 560 800 RUNNING CURRENT(A) 5.1 5.4 7.6 ENERGY FACTOR(L/kw.h) 1.05 1.75 1.60 REFRIGERANT R22 REFRIGERANT CHARGE, oz(g) 5.29(150) 9.17(260) 8.64(245) 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. QA064CBA QA075CDB QA114CBD PROTECTOR OV

Summary of the content on the page No. 5

1.4 CONTROL TYPE 1.4.1 Mechanical type Humidity Control • When you first use the dehumidifier, turn the humidity control to 5 or 6. If you still have moisture, turn the 5 4 6 humidity control to a higher setting. 3 7 High MAX is the highest setting. 2 8 • When excess moisture and dampness odors are Auto Low 1 9 Shut-Off gone, adjust the control to a lower setting. Use the Off Max Fan Speed dehumidifier as long as excess moisture is present. Humidity Control Figure 2 Fan Speed Auto Shut-Off

Summary of the content on the page No. 6

1.5 HOW TO OPERATE DEHUMIDIFIER 1.5.1 HOW DOES THE DEHUMIDIFIER WORK? Motor Condenser Moist, humid air is drawn over a cold refrigerated Fan Evaporator dehumidifying coil. Moisture in the air condenses on this coil and drains into a bucket (or through the bucket into a Dry Humid Air Out hose and drain). Air In Dry, clean air is drawn over the condenser where it is actually heated several degrees and discharged out the rear grill into the room. (See Figure 4) Rear Grille It is normal for the su

Summary of the content on the page No. 7

1.5.5 HUMIDITY CONTROLLER 5(42%) 42% R.H 1.5.5.1 Mechanical Type 40% 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. 2(70%) 8(25%) The relative humidity range is from 20% to 80%. (See Figure 6) 9(20%) Turn the Humidity Control to Off to stop the unit manually. 1(80%) Off Max. DEAD DIAL Figu

Summary of the content on the page No. 8

2. CIRCUIT DIAGRAM • MODEL : BHD-301-C PART NO. Q'TY RE- DESCRIPTION NO. PER SET MARKS BHD-301-C 6411A20001Z POWER CORD ASSEMBLY 1 S 1 6600FX5001G 1 S 2 SWITCH, ROCKER 4681A20040Q 3 MOTOR ASSEMBLY 1 S 0CZZA20005J 4 CAPACITOR 1 S TBZ31057901 COMPRESSOR, SET 1 S 5 6750U3L001A OLP 1 S 6 6871A20289B 1 S 7 PWB(PCB) ASSEMBLY, DISPLAY 6877A30013L 8 SENSOR ASSEMBLY 1 S 6601A30006A 9 SWITCH ASSEMBLY, ROTARY 1 S 6600A30003C SWITCH ASSEMBLY, MICRO 1 S 10 6871A10142A PWB(PCB) ASSEMBLY, MAIN 1 S 11 S: SERVIC

Summary of the content on the page No. 9

• MODEL : BHD-501-B/BHD-651-C W WIIR RIIN NG G D DIIA AG GR RA AM M M MA AIIN N P PC CB B C CN N- -S S//V VA AL LV VE E R RE EV VE ER RS SIIN NG G C CO OIIL L C CN N- -F FA AN N B BK K( (H HII) ) R RD D( (L LO OW W) ) M MO OT TO OR R O OR R( (C CO OM M) ) G GN N//Y YL L F F Y YL L W WH H C CN N- -A AC C1 1 C C W WH H( (B BL L) )( (N N) ) B BR R B BU UC CK KE ET T C C C CN N- -A AC C2 2 C CN N- -S SE EN N S S//W W H HU UM MIID DIIT TY Y G GN N//Y YL L S SE EN NS SO OR R H H R R R RD D P PO OW WE

Summary of the content on the page No. 10

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 9) 4. Pull out the air filter. (See Figure 10) Figure 9 Figure 10 3.1.2 FRONT CASE AND REAR GRILLE 1. Remove 2 screws which fasten the front grille. 2. Pull the front grille forward and upward. (See Figure 11) 3. Remove 6 screws that secure the rear grille.

Summary of the content on the page No. 11

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 15) 2. Disconnect the remaining leads of the power cord from the PWB(PCB) ASSEMBLY, MAIN, then remove it from the control box. Figure 15 3.2.2 SENSOR ASSEMBLY 1. Disconnect the sensor assembly from the PWB(PCB) ASSEMBLY, MAIN. 2. Remove the screw which fastens the humidity sensor. (See Figure 16) 3. Remove the thermistor from the holder. (See Figure 16) 4. Disc

Summary of the content on the page No. 12

4 5 6 3 7 High 2 8 Auto 1 9 Low Shut-Off Off Max Fan Speed Humidity Control 3.2.6 COIL ASSEMBLY, SOLENOID (BHD-501-B, BHD-651-C) 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 19) 3. Pull it out upwards. Figure 19 3.2.7 CONTROL PANEL 3.2.7.1 CONTROL PANEL - Mechanical Type (BHD-301-C) 1. Disconnect housing and all leads of the rocker switch, SWITCH ASSEMBLY, ROTARY and PWB(PCB) A

Summary of the content on the page No. 13

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 22) 4. Unfasten 3 screws that secure the Motor and earth wire. (See Figure 23) 5. Remove the Motor. Figure 22 Figure 23 3.2.9 SHROUD AND DRAIN PAN 1. Discharge the refrigerant by using a refrigerant Recovery System. 2. After purging the unit completely, unbrace the Discharge and the Sucti

Summary of the content on the page No. 14

3.3 REFRIGERATING CYCLE 3.3.1 CONDENSER, EVAPORATOR AND CAPILLARY TUBE 1. Remove the insulation on the Heater/Evaporator (H/E) assembly 2. Pierce the pinch-off tube to discharge the refrigerant, using a refrigerant recovery system. 3. After discharging the refrigerant completely, remove 2 screws between the housing assembly and the H/E. (See Figure 26) 4. Lift the H/E and open the H/E around 45 degree counterclockwise carefully. Figure 26 Figure 27 5. Unbraze each of interconnecting tubes of the

Summary of the content on the page No. 15

3.4 HOW TO REPLACE THE REFRIGERATION SYSTEM 1. When replacing a refrigeration component, be sure 7. Recharge as follows : to discharge the refrigerant system by using a 1) Refrigeration cycle systems are charged from the refrigerant recovery system. High-side. If the total charge cannot be put 2. After discharging the unit completely, remove the in the High-side, the balance will be put in the desired component, and unbraze the pinch-off suction line through the access valve which you tubes.

Summary of the content on the page No. 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 TUBE SEE INSETS BELOW COMPRESSOR LOW HI EXTERNAL VACUUM PUMP CHARGING CYLINDER Figure 31B-Charging Figure 31A-Pulling Vacuum —16— A B A B B A C

Summary of the content on the page No. 17

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. If Auto Shut Off lights, empty the bucket and replace properly. Humidity control is at Off position Turn the humidity control switch toward Max. Wire disconnected or loose Connect wire. Refer to wiring diagram for terminal identifica

Summary of the content on the page No. 18

CONDITION CAUSE REMEDY 5. Noisy operating Fan 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. Replace compressor. Loose set screws Tighten them. Worn bearings of Motor Assembly If knocking sounds continue when running or loose, replace the motor. If the motor hums or noise appears to be inter

Summary of the content on the page No. 19

4 5 6 3 7 High 2 8 Auto 1 9 Low Shut-Off Off M a x Fan Speed Humidity Control 5. EXPLODED VIEWS • MODEL: BHD-301-C W0CZZ-2 149980 349600 554030 354210 268711-2 359012 264110 249950 346811 435300 131400 165010 135312 266002 238310 149410 268711-1 436500 266003 352113 235512 35211A 152302 266010 552111 752140 330870 567502 130410 554160 144410 148391 550140 —19 —

Summary of the content on the page No. 20

• MODEL: BHD-501-B W0CZZ-2 149980 349600 554030 354210 W0CZZ 359012 268711-2 249950 346811 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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