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CA8900 Z-Wave
Thermostat Installation Guide
®
WIRES:
4 Wire
C B
or
Heat
F r o m
Pump
F u r n a c e
w/o
Aux
+C
B
HEAT PUMP SYSTEM
C
O
or
C B O W 2 W Y
RH RC G A
CA8900 Terminals
5 Wire
WIRES:
C B
O W 2 Y R H G
or
Heat
F ro m
Pump
F u rn a c e
w/ Aux
Heat +C
B
HEAT PUMP SYSTEM
B
C
O
OPTIONAL POWER
or
or
C B O W 2 W Y
RH RC G A
CA8900 Terminals
WIRES:
2 Stage
C W2 W Y R H G
Heat and
F r o m
F u r n a c e
1 Stage
Cool +C
W
2
HVAC SYSTEM
C
W Y
W2
OPTIONAL
POWER
C B O W 2 W Y
RH RC G A
CA8900 Terminals
O Y R H G
4 Wire Heat Pump
w/o Aux Heat +C
B
RH G
Y
or
5 Wire
Heat Pump
w/ Aux Heat
+C
Y
R
G
W2
1 stage Cool
2 stage Heat
+C
G
RH
O wire to the O terminal or B wire to the B terminal
1.
Connect
on the CA8900. (If you have both O and B, connect O wire to O
terminal
DO NOT connect B to B terminal. (See page 10 Trane for the B
wire terminal.) This connects the change-over valve.
Y wire to Y on the CA8900. This connects the Com-
2.
Connect the
pressor.
R (or RH) wire to RH on the CA8900. This connects
3.
Connect the
to the 24vac power.
G wire to the G terminal on the CA8900. This con-
4.
Connect the
nects the Fan.
C wire to the C terminal on the CA8900. This con-
5.
Connect the
nects 24vac power.
6.
Set Config jumpers as shown.
Your system is now connected. Continue on page 9.
O wire to the O terminal or B wire to the B terminal on the
1.
Connect
CA8900. If you have both O and B, connect O wire to O terminal.
DO NOT connect B to B terminal. See page 10 Trane for B
wire terminal.
W2 wire to W2 on the CA8900.
2.
Connect the
Y wire to Y on the CA8900.
3.
Connect the
R wire to RH on the CA8900.
4.
Connect the
G wire to G on the CA8900.
5.
Connect the
C wire to the C terminal on the CA8900. This con-
6.
Connect the
nects 24vac power.
7.
Set Config jumpers as shown.
8.
Set jumper 5 if you have Gas
or Oil aux heat.
Your system is now connected. Continue on page 9.
W wire to the W terminal and W2 to W2 on the
1.
Connect the
CA8900. This connects 2 stages of heat.
Y wire to the Y terminal wire on the CA8900. This
2.
Connect the
connects cool.
3.
Connect the
RH or R wire to the RH terminal on the thermostat. This
connects the Heater/Cool Power.
G wire to the G terminal on the Thermostat. This
4.
Connect the
connects to the Fan.
C wire to the C terminal on the CA8900. This con-
5.
Connect the
nects 24vac power
6.
Set Config jumpers as shown.
-
If you have Electric heat, set
-
If you have Gas or Oil, set
Your system is now connected. Continue on page 9.
Providing a brighter solution.™
1
2
3
4
5
1
2
3
4
5
1
3 4
5
2
A
1A.
B
1B.
8
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