19
D
F
G Model Wiring
GR (FAN)
Energized during Heat Mode
BR (Heating Stage 2)
PU (Cooling Stage 2)
WH (Heating Stage 1)
YL (Cooling Stage 1)
** TB1-DH is energized when the unit is in heat
mode. When TB1-DH is energized, the blower motor
operates at a new group of programmed speeds,
T6-T10, in place of T1-T5.
•
Move YELLOW (YL) wire from TB1-T1 to T2 to change blower speed during cooling stage 1 operation.
(Do not move wires YL and PU to the same taps)
•
Move WHITE (WH) wire from TB1-T6 to T7 to change blower speed during heating stage 1 operation.
(Do not move wires WH and BR to the same taps)
•
Move PURPLE (PU) wire from TB1-T3 to T4 or T5 to change blower speed during cooling stage 2 operation.
(Do not move wires YL and PU to the same taps)
•
Move BROWN (BR) wire from TB1-T8 to T9 or T10 to change blower speed during heating stage 2 operation.
(Do not move wires WH and BR to the same taps)
AC
G Y1 Y2 W1 W2 DH T1 T2 T3 T4 T5 T6 T7 T8 T9 T10
Fan Only
X
GR
Cooling Mode LO X X
Cooling Mode HI X X X
Heating Mode Lo X
X
Heating Mode HI X
X X
D
F
G OPERATION
WIRE RANGE
D
F
G OPERATION and WIRE RANGE CHART
X= 24V Signal
= Range of AVAILABLE TAPS
For wire color information and placement, view DFG Model Wiring
Electrical Input Check
Make preliminary check of evaporator fan ampere draw and verify that motor nameplate amps are not exceeded. A final
check of amp draw should be made upon completion of air balancing of the duct system (see Appendix B).\
