Communicating; Low Voltage Hook-Up Diagrams - Trane 4TTL6018A1000A Installation And Operation Manual

Electrical — Low Voltage Non Communicating
Table 20. Low Voltage Maximum Wire Length
The table defines the maximum total length of low voltage wiring
from the outdoor unit, to the indoor unit, and to the thermostat.
Note: The use of color coded low voltage wire is recommended to
simplify connections between the outdoor unit, the control,
and the indoor unit.

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
16
Outdoor
Air Handler
Unit
R R
G
B
B
Blue
O
O
Y*
Y
W1
White
X2
W2
Pink Black
24 VOLTS
WIRE SIZE
18 AWG
16 AWG
14 AWG
With TAM 4, 5, 7, 9
Thermostat Air Handler
R R
24 VAC HOT
G G
FAN
B
24 VAC
B/C
Common
Blue
O
O
SOV
COOL/HEAT
Y
Y
1st STAGE
l
Y
O
HEATING
W1
W
2nd STAGE
White
EMERGENCY
W2
X2
HEAT
Pink
MAX. WIRE LENGTH
150 Ft
225 Ft.
300 Ft.
Outdoor
Unit
R
B
O
l
Y
O
X2
Black
18-BC98D1-1G-EN