Heat Pipe Technology BKP 250 Installation Operation & Maintenance Download Page 1

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MANUAL

8/12/05

INSTALLATION, OPERATION & MAINTENANCE

Commercial High Efficiency
Heat Pipe Dehumidifier

Model BKP

250

Model BKP

250-AC

Model BKP

350

Model BKP

350-AC

Model BKP

450

Model BKP

450-AC

Heat Pipe Technology, Inc.

6904 Parke East Blvd. Tampa FL 33610

Tel: (813) 470-4250

http://www.heatpipe.com

E-mail: [email protected]

Summary of Contents for BKP 250

Page 1: ...h Efficiency Heat Pipe Dehumidifier Model BKPTM 250 Model BKPTM 250 AC Model BKPTM 350 Model BKPTM 350 AC Model BKPTM 450 Model BKPTM 450 AC Heat Pipe Technology Inc 6904 Parke East Blvd Tampa FL 33610 Tel 813 470 4250 http www heatpipe com E mail info heatpipe com ...

Page 2: ...the product and packaging The carrier alone is responsible for handling and settling your claim HPT will cooperate in assessing damage if unit is returned to the factory prepaid Unpack the unit The following will be included BKPTM dehumidifier dehumidistat thermostat for the unit with outside remote condenser user s manual and warranty card 3 INSTALLATION The BKPTM can be placed as a stand alone u...

Page 3: ...emote Condenser Install the remote condenser in an outdoor well ventilated and preferably well shaded area Ensure that the hot air discharge is not obstructed Install on a concrete pad or as required by local codes For Remote Condenser Unit CAUTION Coil is pressurized with a few PSI of nitrogen Punch hole in copper to relieve pressure before cutting off end to connect line 3 4 Condenser Piping The...

Page 4: ...ecial P Traps need to be installed in the vapor line at the bottom of the vertical section and every 10 ft above that Small particles of oil that circulate with the Vapor will accumulate in the traps until they are large enough to be carried up the pipe by the velocity of the refrigerant Vertical sections of tubing should not be enlarged beyond that specified in table BKP01 Pre manufactured traps ...

Page 5: ...wiring is needed to the outdoor condenser 5 Charging The BKP The BKP is charged with refrigerant 22 The charge amount is listed on the nameplate It is important to have exactly the right charge in the unit or damage to the compressor or refrigerant components may occur Due to the wide range of operation of the BKP it is highly recommended that the charge be weighed in to the ounce 5 1 Standard Uni...

Page 6: ...ehumidifier will run and remove humidity until the set humidity is reached at which time the dehumidifier will shut off For normal operation a range from 50 to 60 will provide the best comfort Settings below 50 will make the unit run longer and less economical Settings above 60 which may be required in certain situations will be more economical but may not provide adequate human comfort Units with...

Page 7: ...ized HPT certified technician to provide maximum efficiency and insure long life equipment 8 SERVICE DIAGNOSIS The BKPTM is equipped with safety controls which will shut down the unit if a problem occurs The BKPTM will remain locked out until it is reset by either raising and then lowering the dehumidistat setting or by turning the power to the BKPTM off and then back on If the unit locks out 1 Ch...

Page 8: ...if the suction pressure drops below 60 PSIG for any reason and bypasses hot gas directly into the evaporator to prevent the coil temperature from dropping below freezing The refrigerant system is a R 22 Chlorodifluoromethane system consisting of a compressor condenser coil sight glass filter dryer Thermal expansion valve and an evaporator with dehumidifier heat pipes The coil section contains both...

Page 9: ...KP ACTM from shifting to the outdoor mode when temperatures are below 50 F If the unit is allowed to shift to the outdoor condenser when the temperature is below that of the evaporator temperature the compressor will not be able to pull the refrigerant back when it shifts to the indoor coil and the unit will shut down on low pressure A check valve in the liquid line and in the small suction return...

Page 10: ... Fuse or HACR Circuit Breaker A 30 40 50 Min Circuit Ampacity A 19 26 29 Normal Operating Power W 2500 W 3000 W 3500 W Compressor Scroll Scroll Scroll Blower Motor Power hp 1 4 1 3 1 2 Condensate Pumps Optional Optional Optional BKPTM 250 AC 350 AC 450 AC Models Outdoor Unit 250 AC 350 AC 450 AC Dimensions WxHxD in 24 x 25 x 20 24 x 25 x30 24 x 25 x 30 Net Weight lbs 65 95 95 Air Flow Rate cfm 800...

Page 11: ...w Refrigerant High Discharge Pressure Sat Temperature psig F psig F Liquid Line Temperature Sight Glass F SG Clear F SG Clear Low Suction Pressure Saturated Temperature psig F psig F Suction Line Temperature coil outlet F F Suction Superheat F F Elec Compressor Volts Amps at outdoor F Amps at F DB Amps at F DB Indoor Blower Lo Med Hi Volts Amps Volts Amps BKP AC Outdoor Fan ________ Volts Amps Amp...

Page 12: ...12 BKP 250 350 450 and AC Wiring Schematic ...

Page 13: ...13 BKP 250 350 450 Wiring Diagram ...

Page 14: ...14 BKP 250AC 350AC 450AC Wiring Diagram ...

Page 15: ...15 BKP 250AC 350AC 450AC With Cooling Priority Wiring Schematic ...

Page 16: ...16 BKP 250AC 350AC 450AC With Cooling Priority Wiring Diagram ...

Page 17: ...17 BKP 250AC 350AC 450AC Remote Condenser Wiring Diagram ...

Page 18: ...ck for 24V at lockout terminals 3 2 If no make sure the dehumidistat and field wiring are OK Check for 24V at lockout terminals 1 3 If yes Follow Procedure 2 Unit locks out before starting 2 Fan runs but compressor doesn t Possible Cause Solution Check for 24v across time delay If yes wait 5 minutes If compressor does not start replace the time delay Check for 24v at the compressor contactor coil ...

Page 19: ...e sure the cardboard lays against the diagonal drip rail on the coil Any leakage of air around the coil will affect the pressure readings Cut a small flap in the cover that can be opened and closed to observe the sight glass Start unit and observe the refrigerant pressures The low pressure cutout is 15 psig The high pressure cutout is 350 psig If the unit tries to shut down on the low pressure swi...

Page 20: ...Follow the procedure under 4 unit runs a short time then locks out If unit shuts down follow the outlined procedure An occasional shut down can be a very difficult problem to diagnose It usually involves some trial and error and multiple trips back to solve If everything looks normal while the machine is running consider whether there could be any environmental changes taking place during the day ...

Page 21: ...tic should not exceed 0 5 Check that air inlet temperatures are not too hot or too humid For AC units if a hissing noise can be herd from the reversing valve feel the check valve on the small tube from the center port If the check valve is hot while running then the reversing valve is leaking Shift the unit from heating to cooling several times and then retest If it is still hot replace the revers...

Page 22: ...ar of liens or other encumbrances Limitations on Liability A This warranty does not cover and no warranty is made with respect to B Failures not reported to HPT within the period specified above C Failures or damage due to misapplication misuse abuse improper storage or handling abnormal conditions of temperature water dirt corrosive substances or other contaminants D Products which have been repa...

Page 23: ...Pipe Technology Inc 4340 NE 49th Avenue Gainesville FL 32609 Fax 352 367 1688 WARRANTY REGISTRATION FORM Customer Name Customer Address Phone Fax Please Check One Homeowner Dealer Model No Serial No Type of Product Date of Installation Dealer Installer Name Address of Dealer Company You Purchased from Name Address Customer Signature ...

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