Heat Pump Defrost Control Circuit Board (BDP, Bryant, Carrier)

CARRIER, BRYANT, DAY & NIGHT, PAYNE, TRANE UPGRADED DEFROST CIRCUIT BOARD.



Replaces Heat Pump Circuit Board Part Numbers:

HK25SZ359 HK25SZ359A CEAS410195-01 CEPL110104-02 CEAS410104-01 CEAS410104 CEAS4101-04 HK32FA006 HK32FA003 HK25SZ359 HK25SZ359A CESO110021-00 P771-1027 HK255Z359 HK25SZ359A 24-ICM320 DFOR-AB1016 DF0R-AB1016 1160719 ICM320 CNT02898 CNT2898 92N83 HK32FA003 HK32FA006 CESO110021-00 P771-1027 CARB13020 HK25SZ359 HK32FA006A HK32FA006 CARB12480 CARICM320.

It is Highly Recommended when replaceing this Defrost Circuit Board that the Thermostat Sensor Be Replaced at the same time Part Number: HH18HA280A.

Input Control Voltage: 18-30 VAC.
Frequency: 50/60 Hz.
Power Consumption: 1 watt maximum.
Output Type: Maximum Relay.
Form: SPST, normally open.
Rating: 2 amps.
Time Delay Defrost Time: 10 minute fixed +/- 5%.
Interval Time: pin selectable 30/60/90 minute.
Power On Reset Time: 500 milliseconds.
Test Time: Short Across Test Terminals-reduced test time 256x Installation & Diagrams.
1.Disconnect Power.
2.Connect terminals in series with the device.
3.Reapply power and check operation.

Provides a selectable time interval between defrost cycles.
It will allow heat for the selected 30/60/90 minute period and provide a 10 minute defrost.
A hold input permits the timer to accumulate time only while the compressor is running.
Additionally, a warm coil causes the disc sensor to open which will prevent time accumulation or end in an in-progress defrost period.
When the defrost period ends either by opening the DFT or after the 10 minute defrost period has elapsed, the timer is reset.

SEQUENCE OF OPERATION:
•During Heating the
•Y
• terminal is energized, & the time logic is energized.
•Timer tracks compressor run time to the interval selected. 30/50/90.
•When timer sequence is reached, logic checks the status of the defrost thermostat. If the DFT is open, unit does not need defrosting and the timer is reset.
•
•IF DFT is closed, reversing valve is energized, the outdoor fan is turned off, and the strip heat is turned on.(W2).
•
•Maximum of 10 minutes or until the DFT opens.
•
•Defrost sequence configured in the field for 30, 50, and 90 minutes (factory/default set 90 min.)

FORCED DEFROST:
•Jumper the R to DFT terminal on the board
•
•Short the speed up terminal together until the units goes into defrost
•
•As soon as defrost is started remove your jumper from the speed up terminals or the 10 minute defrost will be shorted to 10 seconds
•
•Defrost will stop when 10 minutes has past or as soon as the DFT jumper is removed.

50HX-036 38YG014300 208/230-1-60 38YG018300 208/230-1-60 38YG018310 208/230-1-60 38YG024300 208/230-1-60 38YG030300 208/230-1-60 38YG030310 208/230-1-60 38YG030500 208/230-3-60 38YG030510 208/230-3-60 38YG030703 220/240-1-50 38YG030800 220-3-50 38YG030810 38YGO36300 541DJ018 541DJO24 38YG030900 38YG030910 38QS042300 38QN0243105M 38YCO36310 38YG030920 38YG031300 38YG035800 38YG035810 38YG035900 38YG035910 38YG036300 38YG036310 38YG036500 38YG036510 38YG036600 38YG036610 38YG040810 38YG040820 38YG040910 38YG040920 38YG042300 38YG042310 38YG042500 38YG042510 38YG042600 38YG042610 38YG048300 38YG048310 38YG048330 38YG048500 38YG048510 38YG048530 38YG048600 38YG048610 38YG048630 38YG050800 38YG050810 38YG050900 38YG050910 38YG060300 38YG060500 38YG060600 38YG060810 38YG060820 38YG060900 38YG060910 538BPX060000BAAA 0024 538BPX060000AAAA 0024 538BPX048000BAAA 0024 538BPX048000AAAA 0024 538BPX036000ACAA 0024 538BPX036000BAAA 0024 538BPX036000AAAA 0024 538BEX060000BAAA 0024 538BEX060000AAAA 0024 538BEX060000ABAA 38QN048300SM 38QN048300 538BEX048000BAAA 0024 538BEX048000AAAA 0024 538BEX036000BAAA 0024 538DNX024000AAAA 0034 538DNX018000ACAA 0034 538DNX018000AAAA 0034 538BPX048000ABAA 0024 538BPX048000ACAA 0024 538BNX060000AAAA 0024 538BNX060000BAAA 0024 538BNX048000BAAA 0024 538BNX048000ABAA 0024 538BNX048000ACAA 0024 538BNX048000AAAA 0024 538BNX036000AAAA 0024 538BNX024000BAAA 0024 538BNX030000AAAA 0024 691ANX036000AAAA 538BNX024000AAAA 0024 538BNX024000ACAA 0024 538BNX018000BAAA 0024 538BNX018000AAAA 0024 538BNX018000ACAA 0024 538BEX048000ABAA 0024 538BEX048000ACAA 0024 538BEX036000AAAA 538BEX036000ACAA 0024