Manual 2100-547H
Page
27 of 27
TABLE 8
Dehumidification Relay Logic Board
(Applicable only on units equipped with dehumidification with hot gas reheat. Reference manual 7960-745 for complete details.)
Energize on Unit T
erminal Strip
Mode
Occupied/ Unoccupied
Inputs to the Board
Outputs from the Board
R
AT
Y
B
W2
A1
D
G
G1
BK
RV
TWV
W
YO
A2
Y,
G
1st Cooling
Unoccupied
X
X
X
X
X
Y, G, O1
1st Cooling
Occupied
X
X
X
X
X
X
X
Y, G, W3, O1
1st Cool/Dehum
Occupied
X
X
X
X
X
X
X
X
Y, G, W3
1st Cool/Dehum
Unoccupied
X
X
X
X
X
X
Y, Y1*, G
2nd Cooling
Unoccupied
X
X
X
X
X
Y, Y1*, G, O1
2nd Cooling
Occupied
X
X
X
X
X
X
X
Y, Y1*, G, O1, W3
2nd Cool/Dehum
Occupied
X
X
X
X
X
X
X
X
Y, Y1*, G, W3
2nd Cool/Dehum
Unoccupied
X
X
X
X
X
X
Y, G, B
1st Heating
Unoccupied
X
X
X
X
X
X
X
Y, G, B, O1
1st Heating
Occupied
X
X
X
X
X
X
X
X
X
Y, G, B, O1, W3
1st Heat/Dehum
Occupied
X
X
X
X
X
X
X
X
X
X
X
Y, G, B, W3
1st Heat/Dehum
Unoccupied
X
X
X
X
X
X
X
X
Y, Y1*, B, G
2nd Heating
Unoccupied
X
X
X
X
X
X
X
Y, Y1*, B, G, O1
2nd Heating
Occupied
X
X
X
X
X
X
X
X
X
Y, Y1*, B, G, O1, W3
2nd Heat/Dehum
Occupied
X
X
X
X
X
X
X
X
X
X
X
Y, Y1*, B, G, W3
2nd Heat/Dehum
Unoccupied
X
X
X
X
X
X
X
X
Y, Y1*, G, B, W2
3rd Heating **
Unoccupied
X
X
X
X
X
X
X
X
X
Y, Y1*, G, B, W2, O1
3rd Heating **
Occupied
X
X
X
X
X
X
X
X
X
X
X
Y, Y1*, G, B, W2, O1, W3
3rd Heating **
Occupied
X
X
X
X
X
X
X
X
X
X
X
X
Y, Y1*, G, B, W2, W3
3rd Heating **
Unoccupied
X
X
X
X
X
X
X
X
X
X
B, W2, E***, G
Emergency Heat
Unoccupied
X
X
X
X
X
X
X
B, W2, E***, G, O1
Emergency Heat
Occupied
X
X
X
X
X
X
X
X
X
B, W2, E***. G, O1, W3
Emergency Heat/Dehum
Occupied
X
X
X
X
X
X
X
X
X
B, W2, E***, G, W3
Emergency Heat/Dehum
Unoccupied
X
X
X
X
X
X
X
W3
Dehum
Unoccupied
X
X
X
X
W3, O1
Dehum
Occupied
X
X
X
X
X
X
W3, O1, RA
T Closed
Dehum/RA
T
Occupied
X
X
X
X
X
X
X
X
X
W3, RA
T Closed
Dehum/RA
T
Unoccupied
X
X
X
X
X
X
X
*
Y1 directly energizes the compressor solenoid; it does not go through the dehum board.
**
Is only applicable to units with strip heat.
*** Is directly energized at the terminal strip of the unit; it does not go through the dehum board.
