Venstar TSTATEZ - Selecting the Heat or Cool Mode; System Mode Selection; Time Schedule Activation

Sample Wiring Diagrams
Thermostat
Thermostat
R
C
G
Y1
Y2
W1
W2
O
E
L
R
C
G
Y1
Y2
W1
W2
O
24 vac common
24 vac return
fan relay
compressor relay
1st stage heat circuit
R
C
G
Y1
Y2
W1
W2
O
E
L
R
C
G
Y1
Y2
W1
W2
O
24 vac return
fan relay
compressor relay
1st stage heat circuit
5 Wire, 1 Stage Cooling, 1 Stage Gas Heat
4 Wire, 1 Stage Cooling, 1 Stage Gas Heat
Residential Gas or Electric Heat *,
Electric Cool, split systems & package
units
Residential Gas or Electric Heat *,
Electric Cool, split systems & package
units
* If using electric heat this option must be
selected on during advanced setup.
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