Trane 5TWA4 - Section 11. Electrical - Low Voltage

10 18-BC120D1-1A-EN
CAP
1/4 TURN ONLY
COUNTERCLOCKWISE
FOR FULL OPEN
POSITION
VALVE STEM
GAS LINE CONNECTION
UNIT SID
E
OF VALVE
PRESSURE TAP PORT
Cap
Rolled Edge to
Captivate Stem
Hex Headed
Valve System
Service Port
3/16” Hex Wrench
Unit Side
of Service
Valve
Gas Service Valve Liquid Service Valve
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.
Table 11.1
24 VOLTS
WIRE SIZE MAX. WIRE LENGTH
18 AWG 150 Ft.
16 AWG 225 Ft.
14 AWG 300 Ft.
11.2 Low Voltage Hook-up Diagrams
With 5TEM6
Thermostat Air Handler
Outdoor
Unit
R
G
B
W1
W2
R
B
O
Y
R
G
B/C
O
Y
W1
Blue
24 VAC HOT
FAN
24 VAC
Common
COOL/HEAT
1st STAGE
HEATING
1st STAGE
Pink
White
W2
O
Y1
.
Y2
Yo
3)
5)
BK
WH/BLK
1) Units with pigtails require wirenuts for connections.
2) Cap all unused wires.
3) When BK is used, do not connect Y2 at the air handler.
4) When BK is used, cut the jumper between R and BK on the
control board. See indoor wiring schematic for details.
5) In AC systems, for multiple stages of electric heat, jumper
W1 and W2 together if comfort control has only one stage of heat.
With 5TEM4
ThermostatAir Handler
Outdoor
Unit
R
G
B
W1
W2
R
B
O
Y
R
G
B/C
O
Y
W1
Blue
24 VAC HOT
FAN
24 VAC
Common
COOL/HEAT
1st STAGE
HEATING
1st STAGE
Pink
White
W2
O
Y1
Y2
Yo
3)
1) Units with pigtails require wirenuts for connections.
2) Cap all unused wires.
3) In AC systems, for multiple stages of electric heat, jumper W1
and W2 together if comfort control has only one stage of heat.
With 5TAM5
ThermostatAir Handler
Outdoor
Unit
R
G
B
W1
W2
R
B
O
Y
R
G
B/C
O
Y
W1
Blue
24 VAC HOT
FAN
24 VAC
Common
COOL/HEAT
1st STAGE
HEATING
1st STAGE
Pink
White
W2
O
Y1
Y2
Yo
3)
W3
Brown
1) Units with pigtails require wirenuts for connections.
2) Cap all unused wires.
3) In AC systems, for multiple stages of electric heat, jumper W1
and W2 together if comfort control has only one stage of heat.
W3
Brown
HEATING
2nd STAGE
HEATING
2nd STAGE
HEATING
2nd STAGE
HEATING
3rd STAGE