Table 11 Dehumidification Relay Logic Board - Bard QW2S3DA Installation Instructions Manual

Energize on Unit
Terminal Strip
G
G, A
Y1, O, G
Y1, O, G, A
Y1, O, G, D Part Load Cooling/Dehum
Y1, O, G, D, A Part Load Cooling/Dehum
Y1, Y2, O, G,
Y1, Y2, O, G, A
Y1, O, G, D Full Load Cooling/Dehum
Y1,G, O, D, A Full Load Cooling/Dehum
Y1, G Part Load Heat Pump
Y1, G, A Part Load Heat pump
Y1, G, D Part Load Heat Pump/Dehum
Y1, G, D, A Part Load Heat Pump/Dehum
Y1, Y2, G Full Load Heat Pump
Y1, Y2, G, A Full Load Heat Pump
Y1, Y2, G, D Full Load Heat Pump/Dehum
Y1, Y2, G, D, A Full Load Heat Pump/Dehum
Y1, Y2, G, W2 Part Load Heat Pump w/Aux. Heat
Y1, Y2, G, W2 Part Load Heat Pump w/Aux. Heat
Part Load Heat Pump w/Aux. Heat/
Y1, Y2, G, W2, D
Part Load Heat Pump w/Aux. Heat/
Y1, Y2, G, W2 D, A
G, W2
G, W2, A
G, W2, D
G, W2, D, A
D
D, A
Energize on Unit
Terminal Strip
NOTES
1. Cooling takes precedence over dehumidification. A cooling call cancels dehumidification.
2. For dehumidification, the "O" (reversing valve) is activated through the dehumidification cube relay.
Dehumidification Relay Logic Board
Occupied/
Mode
Unoccupied
Blower Unoccupied
Blower
Part Load Cooling Unoccupied
Part Load Cooling
Unoccupied
Full load Cooling Unoccupied
Full load Cooling
Unoccupied
Unoccupied
Unoccupied
Unoccupied
Unoccupied
Unoccupied
Unoccupied
Dehum
Dehum
Aux. Heat Unoccupied
Aux. Heat
Aux. Heat/Dehum Unoccupied
Aux. Heat/Dehum
Dehumidifiction Unoccupied
Dehumidifiction
Occupied/
Mode
Unoccupied
Table 11
Inputs to the Board
RAT Y B W2 A1 D G G1 BK RV TWV W YO A2
Occupied
X
Occupied X
X
Occupied X
X
Occupied X
X
Occupied X
X
Occupied X
X
Occupied X
X
Occupied X
X
Occupied X
X X
Occupied X X
X X
Occupied X X
X
Occupied X
X
Occupied X
Occupied
RAT Y B W2 A1 D G G1 BK RV TWV W YO A2
Inputs to the Board
Outputs from the Board
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X X
X X X
X X X
X X X X
X X X X X
X X X
X X X X
Outputs from the Board
Manual 2100-738C
Page
X
X
X X
X
X X
X
X X
X
X X
X
X X
X
X X
X
X X
X
X X
X X
X X X
X X
X X X
X
X X
X
X X
X
X X
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