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Heat Controller BHD-301-D manual

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Table of contents for the manual

  • Page 1

    Dehumidifier Service Manual CAUTION -Before servicing the unit, read the "safety precautions" in this manual. -Only for authorized service personnel. HEA T CONTROLLER, INC. MODELS: BHD-301- D BHD-501- D BHD-651- D[...]

  • Page 2

    —2— 1. PREF A CE 1.1 SAFETY PRECAUTIONS ...........................................................................................................................3 1.2 FEATURES AND DIMENSIONS ................................................................................................................3 1.2.1 FEATURES ........................[...]

  • Page 3

    —3— 1. PREF A CE 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 PRECA UTI[...]

  • Page 4

    —4— 1.3 SPECIFICA TIONS *NOTE: Specifications are subject to minor change without notice for further improvement. CAPACITY(Pints/24hrs) 30 50 65 POWER SUPPLY(Phase,V,Hz) 1Ø, 115V,60Hz INPUT(W) 490 615 710 RUNNING CURRENT(A) 4.8 5.9 7.0 ENERGY FACTOR(L/kw.h) 1.2 1.6 1.80 REFRIGERANT R22 REFRIGERANT CHARGE, oz(g) 5.29(150) 7.23(205) 8.82(250) TH[...]

  • Page 5

    — 5 — 1 2 3 4 5 6 7 8 9 Off Max High Low Fan Speed Humidity Control Auto Shut-Off Humidity Control • When y ou first use the dehumidifier , tur n the humidity control to 5 or 6. If you still ha ve moisture , turn the humidity control to a higher setting. MAX is the highest setting. • When e xcess moisture and dampness odors are gone, adjust[...]

  • Page 6

    —6— 1.5.1 HO W DOES THE DEHUMIDIFIER WORK? Moist, humid air is drawn over a cold refrigerated dehumidifying coil. Moisture in the air condenses on this coil and drains into a bucket (or through the bucket into a hose and drain). Dry, clean air is drawn over the condenser where it is actually heated several degrees and discharged out the rear gr[...]

  • Page 7

    —7— 1.5.5 HUMIDITY CONTROLLER 1.5.5.1 Mechanical Type The humidity control can be set anywhere between Off and Max for normal operation. If you need more dehumidification, turn the Humidity Control toward Max. If you need less dehumidification, turn the Humidity Control toward Off. The relative humidity range is from 20% to 80%. (See Figure 6) [...]

  • Page 8

    —8— 2. CIRCUIT DIA GRAM • MODEL : BHD-301- D Q'TY PER SET 1 1 1 1 1 1 1 1 1 1 1 RE- MARKS S S S S S S S S S S S 1 2 3 4 5 6 7 8 9 10 11 DESCRIPTION POWER CORD ASSEMBLY SWITCH, ROCKER MOTOR ASSEMBLY CAPACITOR COMPRESSOR, SET OLP PWB(PCB) ASSEMBLY, DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY, ROTARY SWITCH ASSEMBLY, MICRO PWB(PCB) ASSEMBLY, MA[...]

  • Page 9

    —9— • MODEL : BHD-501-D/BHD-651-D Q'TY PER SET 1 1 1 1 1 1 1 1 1 RE- MARKS S S S S S S S S S 1 2 3 4 5 6 7 8 9 10 DESCRIPTION POWER CORD ASSEMBLY MOTOR ASSEMBLY CAPACITOR COMPRESSOR, SET OLP. PWB(PCB) ASSEMBLY, DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY, MICRO PWB(PCB) ASSEMBLY, MAIN BHD-501-D BHD-651-D 6411A20001Z EAU32357501 0CZZA20005J T[...]

  • Page 10

    3.1 MECHANICAL P AR TS 3.1.1 BUCKET AND AIR FIL TER 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) 3.1.2 FRONT CASE AND REAR GRILLE 1. Remove 2 screws which fasten the front grille. 2. [...]

  • Page 11

    3.2 CONTR OL P ARTS 3.2.1 PO WER CORD ASSEMBL Y 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. 3.2.2 SENSOR ASSEMBL Y 1. Disconnect the sensor assembly from the PWB(PCB) ASSEMBLY,[...]

  • Page 12

    —12— 3.2.6 CONTROL P ANEL 3.2.6.1 CONTROL PANEL - Mechanical Type (BHD-301-D) 1. Disconnect housing and all leads of the rocker switch, SWITCH ASSEMBLY, ROTARY and PWB(PCB) ASSEMBLY, DISPLAY from PWB(PCB) ASSEMBLY, MAIN (3.1.3) 2. Pull out the knob assembly. 3. Remove the nut which fastens the SWITCH ASSEMBLY, ROTARY. 4. Remove the knob of the [...]

  • Page 13

    3.2.7 F AN AND MO T OR 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 21) 4. Unfasten 3 screws that secure the Motor and earth wire. (See Figure 22) 5. Remove the Motor. 3.2.8 SHROUD AND DRAIN P AN 1. Disch[...]

  • Page 14

    —14— 3.3 REFRIGERA TING CYCLE 3.3.1 CONDENSER, EV APORA T OR AND CAPILLAR Y 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/[...]

  • Page 15

    —15— 1. When replacing a refrigeration component, be sure to discharge the refrigerant system by using a refrigerant recovery system. 2. After discharging the unit completely, remove the desired component, and unbraze the pinch-off tubes. 3. Solder service valves into the pinch-off tube ports, leaving the valves open. 4. Solder the pinch-off tu[...]

  • Page 16

    —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. B A COMPRESSOR COMPOUND GAUGE MANIFOLD GAUGE SEE INSETS BELOW EXTERNAL VACUUM PUMP CHARGING CYLINDER HI LOW A B A B C CONDENS[...]

  • Page 17

    CONDITION 1. Dehumidifier does not start. (Both compressor and fan motor do not operate.) 2. Motor runs but compressor does not run. 3. Does not defrost control. 4. Insufficient dehumidification CAUSE No power Poor plug contact at outlet. Bucket is full. Humidity control is at Off position Wire disconnected or loose Capacitor. (Discharge capacitor [...]

  • Page 18

    —18— CONDITION 5. Noisy operating 6. Water drips 7. Compressor cycles on overload protector. (OLP) CAUSE Fan Loose foreign material inside the housing. Tube hits frame. Fan blade hits frame Internal compressor noise. Loose set screws Worn bearings of Motor Assembly The bucket is not installed properly. Connection may be loose. Leak in bucket Wa[...]

  • Page 19

    — — • MODEL:BHD-301-D 131400 349600 149980 165010 346811 359012 264110 148391 144410 752140 152302 436500 249950 266010 130410 235512 149410 435300 330870 266003 238310 135312 268711-1 266002 W0CZZ-2 268711-2 552111 567502 554160 550140 354210 554030 35211A 352113 5. Exploded View —19—[...]

  • Page 20

    — — • MODEL:BHD-501-D W0CZZ-2 165010 268711-2 264110 249950 35211A 352113 552111 567502 554160 550140 354210 554030 135312 131400 148391 144410 752140 152302 436500 130410 235512 266010 238310 435300 330870 W0CZZ 349600 149980 346811 359012 268711-1 —20—[...]

  • Page 21

    — — • MODEL:BHD-651-D W0CZZ-2 165010 268711-2 264110 249950 35211A 352113 552111 567502 554160 550140 354210 554030 135312 131400 148391 144410 752140 152302 436500 130410 235512 266010 238310 435300 330870 W0CZZ 349600 149980 346811 359012 268711-1 —21—[...]

  • Page 22

    6. REP L A CEMENT P A R TS LIST • MODEL: BHD-301-D PA RTNO BHD-301-D 130410 Base A ssembly ,Single 3041A 10042E R 144410 Roller 4441A 30001B R 149980 Shroud 4998A 10034B R 266010 Switch Assembly 6600A 30003C R 330870 Pan A ssembly ,Drain 3087A 10019C R 349600 Bracket,Moto r 4960A 20009B R 550140 Washer,Customized 1WZZA 31003A R 554160 Compressor [...]

  • Page 23

    • MODEL: BHD-501-D —23— PA RT NO BHD-501-D 130410 Base A ss embly,Single 3041A 10042A R 131400 Cabinet 3090A 10042G R 135312 Grille A sse mbly,Front A EB 36976502 R 144410 Roller 4441A 30001B R 148391 Tank A ssembly,Bucket 4839A 10002F R 149980 Shroud 4998A 10034B R 152302 Filter,A ir 5230A 20040A R 165010 Sensor A ss embly 6877A 30013R R 235[...]

  • Page 24

    • MODEL: BHD-651-D PA RT NO BHD-651-D 130410 Base A ssembly,Single 3041A 10042A R 131400 Cabinet 3090A 10 042G R 135312 Grille A ss embly,Front A EB36976502 R 144410 Roller 4441A 30001B R 148391 Tank A ssembly,Bucket 4839A 10 002F R 149980 Shroud 4998A 10034C R 152302 Filter,A ir 5230 A 20040A R 165010 S e n s o r A sse m b ly 6877 A 30013 R R 23[...]

  • Page 25

    — 25 — MEMO[...]

  • Page 26

    — 26 — MEMO[...]

  • Page 27

    Specifications and performance data subject to change without notice. HEA T CONTROLLER, INC. 1900 WELL W OR TH A VENUE • JA CKSON, MICHIGAN 49203 THE QU ALITY LEADER IN CONDITIONING AIR P/No.: MFL38891301[...]