Instruction/ maintenance manual of the product BHD-301-C Heat Controller
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Dehumidifier Service Manual CAUTION -Before servicing the unit, read the "safety precautions" in this manual. -Only for authorized service personnel.
—2— 1. PREF A CE 1.1 SAFETY PRECAUTIONS ...........................................................................................................................3 1.2 FEATURES AND DIMENSIONS ......................................................
—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.
—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) 560 560 800 RUNNING CURRENT(A) 5.1 5.4 7.6 ENERGY FACTOR(L/kw.
— 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.
— 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).
—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.
—8— 2. CIRCUIT DIA GRAM • MODEL : BHD-301- C 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 .
—9— W I R I N G W I R I N G D I A G R A M D I A G R A M M A I N P C B M A I N P C B C N - S / VA L V E C N - S / VA L V E C N - F A N C N - F A N R E V E R S I N G R E V E R S I N G C O I L C O I .
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.
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.
— 12 — 3.2.6 COIL ASSEMBL Y , 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.
3.2.8 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 22) 4. Unfasten 3 screws that secure the Motor and earth wire.
—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.
—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.
— 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.
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.
—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.
—19— 5. EXPLODED VIEWS • MODEL: BHD-301-C 131400 349600 149980 165010 346811 359012 264110 148391 144410 752140 152302 436500 249950 266010 130410 235512 149410 435300 330870 266003 238310 13531.
—20— • MODEL: BHD-501-B W0CZZ-2 165010 268711-2 264110 249950 35211A 352113 552204 567502 554160 550140 354210 554030 135312 131400 148391 144410 752140 152302 436500 130410 2 355 12 266010 2383.
—21— • MODEL: BHD-651-C W0CZZ-2 165010 268711-2 264110 249950 35211A 552204 352113 567502 554160 550140 354210 135312 554030 131400 349600 149980 346811 359012 148391 144410 752140 152302 436500.
—22— 6. REPLA CEMENT P AR TS LIST • MODEL: BHD-301-C 130410 BASE ASSEMBLY 3041A10042A 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10285D 330870 DRAIN PAN ASSEMBLY 3087A10019C 14.
—23— • MODEL: BHD-501-B 130410 BASE ASSEMBLY 3041A10042A 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A18012C 330870 DRAIN PAN ASSEMBLY 3087A10019C 148391 TANK ASSEMBLY,BUCKET 483.
—24— • MODEL: BHD-651-C 130410 BASE ASSEMBLY 3041A10042A 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A18012C 330870 DRAIN PAN ASSEMBLY 3087A10019E 148391 TANK ASSEMBLY,BUCKET 483.
— 25 — MEMO.
— 26 — MEMO.
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.
An important point after buying a device Heat Controller BHD-301-C (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Heat Controller BHD-301-C yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Heat Controller BHD-301-C - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Heat Controller BHD-301-C you will learn all the available features of the product, as well as information on its operation. The information that you get Heat Controller BHD-301-C will certainly help you make a decision on the purchase.
If you already are a holder of Heat Controller BHD-301-C, 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 BHD-301-C.
However, one of the most important roles played by the user manual is to help in solving problems with Heat Controller BHD-301-C. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Heat Controller BHD-301-C 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
