Venstar TSTATEZ - Manual (Page 8)

Sample Wiring Diagrams
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
2nd stage compressor relay
1st stage heat circuit
2nd stage heat circuit
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
reversing valve
Commercial Gas or Electric Heat *,
Electric Cool, split systems & package units
including Commercial Heat Pumps **
No auxiliary heat,
Residential Heat Pumps ,
split systems & package units
7 Wire, 2 Stage Cooling, 2 Stage Heat
5 Wire, 1 Stage Cooling, 1 Stage Heat - Heat Pump***
Thermostat
Thermostat
*** If using Residential Heat Pump, this option
must be selected on during advanced setup.
** Commercial Heat Pumps do not have
the heat pump turned on in advanced setup. * If using electric heat, this option must
be selected on during advanced setup.
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