Heat Pumps and Electric Heating - Need help connecting new Defrost Circuit Board
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spanky1960
08-04-05, 03:22 AM
Directions:
Because of the addition of the module function to the new circuit board, the defrost thermostat leads must be connected to the circuit board, one lead to "R" terminal and the other lead to "DFT", rather than the "C" and "DFT" terminal connections on the old board.
Note: The new board will not function if the defrost thermostat is connected to the "C" and "DFT" so check the board part number which is indicated in white letters on the edge of the board opposite the terminal strip.
Old board configuration and how the jumpers were connected:
- - 1 2 3
C C C C C
G R Y O DFT
- - 4 5 6
New board configuration and how I moved the jumpers:
- - 1 2 6
C C C C DFT
G R R Y O
- - 3 4 5
I'm not sure I jumpered the new board correctly, can someone doublecheck my work?
Much Appreciated!
Because of the addition of the module function to the new circuit board, the defrost thermostat leads must be connected to the circuit board, one lead to "R" terminal and the other lead to "DFT", rather than the "C" and "DFT" terminal connections on the old board.
Note: The new board will not function if the defrost thermostat is connected to the "C" and "DFT" so check the board part number which is indicated in white letters on the edge of the board opposite the terminal strip.
Old board configuration and how the jumpers were connected:
- - 1 2 3
C C C C C
G R Y O DFT
- - 4 5 6
New board configuration and how I moved the jumpers:
- - 1 2 6
C C C C DFT
G R R Y O
- - 3 4 5
I'm not sure I jumpered the new board correctly, can someone doublecheck my work?
Much Appreciated!