Section 11. Electrical - Low Voltage - Trane 4TWX6 Installer's Manual

Section 11. Electrical - Low Voltage

11.1 Low Voltage Maximum Wire Length
Table 11.1 defines the maximum total length of
low voltage wiring from the outdoor unit, to the
indoor unit, and to the thermostat.
11.2 Low Voltage Hook-up Diagrams
With TEM 3, 4, 6, 8
Thermostat
R
24 VAC HOT
G
FAN
24 VAC B/C
Common
O
SOV
COOL/HEAT
Y
1st STAGE
HEATING
W
2nd STAGE
EMERGENCY
X2
HEAT
Units with pigtails require wirenuts for connections.
•
In AC systems for multiple stages of electric heat, jumper W1 and W2 together if comfort control has only one stage of heat.
•
* Y2 for TEM6
18-AC105D1-1D-EN
Outdoor
Air Handler
Unit
R R
G
B
B
Blue
O O
Y*
Y
W1
White
X2
W2
Pink Black
Table 11.1
24 VOLTS
WIRE SIZE MAX. WIRE LENGTH
18 AWG
16 AWG
14 AWG
With TAM 4, 5, 7, 9
Thermostat Air Handler
R
24 VAC HOT
G
FAN
24 VAC B/C
Common
O
SOV
COOL/HEAT
Y
1st STAGE l
HEATING
W
2nd STAGE
EMERGENCY
X2
HEAT
150 Ft.
225 Ft.
300 Ft.
Outdoor
Unit
R R
G
B
B
Blue
O
O
Y
l
Y Y
O O
W1
White
X2
W2
Pink Black
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