Heat Controller BHD-651-G, BHD-501-G, BHD-301-G service manual FAN Motor, Capacitor

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BHD-G Service Manual

Portable Dehumidifier with R-410A

Heat Controller, Inc.

 

 

 

11.Break vacuum by charging system from the high side with the correct amount of refrigerant specified. This will prevent boiling the oil out of the crankcase.

NOTE: If the entire charge will not enter the high side, allow the remainder to enter the low side in small increments while operating the unit.

12.Restart unit several times after allowing pressures to stabilize. Pinch off lines, cut and solder the ends.

Remove pinch off tool, and leak check the line ends.

COMPRESSOR MOTOR BURNOUT

1.Recover all refrigerant and oil from the system.

2.Remove compressor, capillary tube and filter drier from the system.

3.Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent, to remove all contamination from system. Inspect suction and discharge line for carbon deposits. Remove and clean if necessary.

4.Reassemble the system, including new drier, strainer and capillary tube.

5.Proceed with processing as outlined under hermetic component replacement.

ROTARY COMPRESSOR TROUBLESHOOTING AND SERVICE

Basically, troubleshooting and servicing rotary compressors is the same as a reciprocating compressor with a few exceptions.

1.Because of the spinning motion of the rotary compressor, the mounts are critical. If vibration is present, check the mounts carefully.

2.The electrical terminals on the rotary compressor are in a different order than the reciprocating compressors. The terminal markings are on the cover gasket. Use the wiring diagram to insure correct connections.

REFRIGERANT CHARGE

1.The refrigerant charge is extremely critical. Measure charge carefully - as exact as possible to the nameplate charge.

2.The correct method for charging the rotary compressor is to introduce liquid refrigerant into the high side of the system with the unit off. Then start compressor and add the balance of the charge, gas only, into the low side.

The introduction of liquid into the low side, without the use of a capillary tube, will cause damage to the discharge valve of the rotary compressor.

5.3 FAN MOTOR

A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A self- resetting overload is located inside the motor to protect against high temperature and high amperage conditions.

FAN MOTOR - TEST

1.Determine that capacitor is serviceable.

2.Disconnect fan motor wires from fan speed switch or system switch.

3.Apply “live” test cord probes on black wire and common terminal of capacitor. Motor should run at high speed.

4.Apply “live” test cord probes on red wire and common terminal of capacitor. Motor should run at low speed.

5.Apply “live” test cord probes on each of the remaining wires from the speed switch or system switch to test intermediate speeds.

5.4CAPACITOR

A run capacitor is wired across the auxiliary and main winding of a single phase permanent split capacitor motor such as the compressor and fan motor. A single capacitor can be used for each motor or a dual rated capacitor can be used for both.

The capacitor’s primary function is to reduce the line current while greatly improving the torque characteristics of a motor. The capacitor also reduces the line current to the motor by improving the power factor of the load. Run capacitor hook-up line side of the capacitor is marked with a red dot and is wired to the line side of the circuit

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Contents Portable Dehumidifer Series With R-410A Table of Contents Insulation Resistance Test Safety PrecautionsUnit Features Control LocationsOutside Dimensions TimerTimer Set Control Turning the Unit on or OFF Operating ConditionsOperation with Water Tank Maintenance Operation with Continuous DrainageContinuous Dehumidification Mode Powering on the UnitSetting the Relative Humidity Powering OFF the UnitGround Test Defective CompressorCompressor Winding Test Checking Compressor EfficiencyChecking the Internal Overload Hermetic Component ReplacementSealed Refrigeration System Repairs Equipment RequiredFAN Motor CapacitorCapacitor Test Trouble Shooting Troubleshooting GuideIdentify ALL Possible PCB Fault Codes Room Airconditioner Voltage LimitsHumidity sensor check Fail to start or fail to start motor Abnormal noise Complaint Cause RemedyPortable Dehumidifier with R-410A Complaint Cause Remedy Wiring Diagram 05/2010

BHD-301-G, BHD-651-G, BHD-501-G specifications

The Heat Controller BHD series, comprising models BHD-651-G, BHD-301-G, and BHD-501-G, is designed to meet diverse heating needs with efficiency and reliability. Each model incorporates advanced features and technologies that enhance user experience, making them ideal for both home and commercial use.

Starting with the BHD-651-G, this model is a powerhouse, offering significantly higher output capacity suitable for larger spaces. It boasts an intelligent thermostat that ensures precise temperature control, allowing users to maintain their preferred environment effortlessly. The BHD-651-G employs a dual heating technology, combining convection and radiant heat for balanced warmth. Additionally, its energy-saving mode optimizes power consumption without sacrificing comfort, making it an eco-friendly choice.

The BHD-301-G is designed for medium-sized areas, striking a perfect balance between power and portability. Featuring a sleek design, it is lightweight and easy to move around. One of its standout features is the programmable timer, allowing users to set heating schedules that align with their lifestyles. This model also includes a filter system that cleans and purifies the air while heating, ensuring a healthier indoor environment. Moreover, the BHD-301-G operates quietly, making it ideal for use in bedrooms or offices.

Finally, the BHD-501-G caters to a variety of settings where flexibility is crucial. This model is equipped with multi-directional airflow, enabling users to direct heat where it is most needed. The BHD-501-G also features an advanced safety system, including overheat protection and a tip-over switch, ensuring peace of mind during use. Its user-friendly interface with intuitive controls simplifies operation, allowing for effortless adjustments to temperature and settings.

In summary, the Heat Controller BHD series offers a comprehensive range of features designed to provide efficient heating solutions tailored to different environments. With technologies aimed at enhancing power efficiency, air quality, and user comfort, the BHD-651-G, BHD-301-G, and BHD-501-G models stand out as top choices for reliable heat management. Their innovative characteristics ensure that users can enjoy warmth and comfort in any setting while being mindful of energy consumption and safety.
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