American Standard TWE075AD**E User Manual

TWE-SVX03C-EN

15

 

1.

Observe all notes on the 
diagrams.

2.

Mount the thermostat in the 
desired location.

3.

Install color coded low voltage 
cables between outdoor unit, 
indoor unit and thermostat.

4.

Connect low voltage control 
wiring to the low voltage 
terminal board located on the 
side of the fan control box per 
the typical interconnecting 
wiring diagrams on pages 13 
through 22.

 

Field Wiring:

a. 3 power wires. Line voltage.

b. 3 power wires. Line voltage 

for 3 phase; 2 wires for single 
phase.

c. Cooling only thermostat: 3 

wires, 24 volts.
i.

One stage Electric heat: 
add 1 additional wire, 24 
volts.

ii. Two Stage Electric heat: 

add 2 additional wires, 24 
volts.

d. 4 wires, 24 volts.

 

Field Wiring:

a. 3 power wires. Line voltage.

b. 3 power wires. Line voltage 

for 3 phase; 2 wires for single 
phase.

c. Heat pump thermostat: 6 

wires, 24 volts. 
i.

Electric heat: add 2 
additional wire, 24 volts.

d. 6 wires, 24 volts.

i.

Outdoor thermostat; add 
1 additional wire, 24 
volts. 

ii. Electric heat: add 1 

additional wires, 24 volts.

 

 

Field Wiring:

a. 3 power wires. Line voltage.

b. 3 power wires. Line voltage 

for 3 phase; 2 wires for single 
phase.

c. Cooling only thermostat: 4 

wires, 24 volts. 

i.

One Stage Electric heat: 
add 1 additional wire, 24 
volts.

ii. Two Stage Electric heat: 

add 2 additional wires, 24 
volts.

d. 5 wires, 24 volts.

Field Wiring:

a. 3 power wires. Line voltage.

b. 3 power wires. Line voltage 

for 3 phase; 2 wires for single 
phase.

c. Cooling only thermostat: 3 

wires, 24 volts. 
i.

One Stage Electric heat: 
add 1 additional wire, 24 
volts.

ii. Two Stage Electric heat: 

add 2 additional wires, 24 
volts.

d. 2 wires, 24 volts.

Field Wiring:

a. 3 power wires. Line voltage 

for 3 phase; 2 wires for single 
phase.