Electrical - Low Voltage - Trane Oxbox AC Series Installation Instructions Manual

Cap
Unit S ide
of Service
Valve
Service Port
Figure 25
11.2 Low voltage hook-up diagrams
Air Handler Hook-up Diagram
Figure 26
W
B
C
R
Y
G
FOR ONE STAGE
HEAT THERMOSTAT
G R
INDOOR UNIT
Figure 27
Notes: "-----"The electric auxiliary heat connection(optional).
W:Electric auxiliary heat signal.
W1 :The first Electric auxiliary heat signal.
W2 :The second Electric auxiliary heat signal.
5/16" Hex Wrench
for Sucti on Service Valve
3/16" Hex Wrench
for Liqu id Service Valve
Roll ed Edge to
Capti vate Stem
Hex Headed
Valve System
Low Voltage connection must be made inside the outdoor unit case.
C C Y
w1 w2
OUTDOOR UNIT
Control Wiring for A/C Systems

11. Electrical - low voltage

11.1 Low Voltage Maximum Wire Length
Table 6 defines the maximum total length of low voltage wiring from
the outdoor unit to the indoor unit and to the thermostat.
24 Volts - Wire size
18 AWG
16 AWG
14 AWG
Table 6
W2
W1
B
C
R
Y
G
FOR TWO STAGE
HEAT THERMOSTAT
G
INDOOR UNIT
9
Max. wire length
150 Ft.
225 Ft.
300 Ft.
Access Panel
R w1 w2
C
C
OUTDOOR UNIT
Y