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3.5
Conventional System Wiring
Note: For a heat pump system, see Section 3.6.
Connect a conventional heating system to
the zone panel as shown.
For a single stage heating and cooling
system, the 2nd stage connections are
not used.
For a system using a dual transformer,
open jumper J1 (see Configuration
section, Figure 4). Make sure the the
neutrals (common) are connected.
3.6
Heat Pump System Wiring
Connect a single or multi-stage
heat pump system to the zone panel
as shown.
A conventional thermostat may be used
with a heat pump system, however,
emergency heat will be controlled by
the panel emergency heat switch or the
optional remote emergency heat switch.
For a single-stage system, the auxiliary
heat control is not used. For a multi-
stage system, the compressor controls
are not used.
•
Use DIP switch 1 to select between conventional and heat pump system.
•
Use DIP switch 3 for heat pump reversing valve control. Setting 0 means that the O/B terminal is
active in a cooling call. Setting B means that the O/B terminal is active in a heating call.
RH
RH
RC
RC
1st stage
1st stage
compressor
compressor
Y1
Y1
Y2
Y2
1st stage
1st stage
G
G
G2
G2
1st stage
1st stage
W1
W1
EH
EH
W2
W2
O/B
O/B
C
C
RH
RH
RC
RC
1st stage
1st stage
compressor
compressor
Y1
Y1
control
control
Y2
Y2
1st stage
1st stage
G
G
control
control
G2
G2
aux heat /
aux heat /
W1
W1
E-heat
E-heat
EH
EH
control
control
W2
W2
O/B
O/B
C
C
5
24 VAC
24 VAC
2nd stage
2nd stage
control
control
compressor
compressor
control
control
fan
fan
control
control
2nd stage
2nd stage
fan
fan
control
control
heat
heat
control
control
2nd stage
2nd stage
heat
heat
control
control
24 VAC
24 VAC
2nd stage
2nd stage
compressor
compressor
control
control
fan
fan
2nd stage
2nd stage
fan
fan
control
control
reversing
reversing
valve
valve
HOT
HOT
C
C
HOT
HOT
C
C
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