Control Power Transformer; Controls Using 24 Vac - Trane Foundation GBC036-060 Installation, Operation And Maintenance Manual

Installation
Figure 15. Through the base electrical option

Control Power Transformer

The 24-volt control power transformers are to be used only
with the accessories called out in this manual.
Table 2. Electromechanical thermostat 24 Vac conductors
Distance from Unit to Control
000–460 feet
000–140 m
461–732 feet
18
Transformers rated greater than 50 Vac are equipped with
internal circuit breakers. If a circuit breaker trips, turn "Off"
all power to the unit before attempting to reset it.
The transformer is located in the control panel. The circuit
breaker is located on the left side of the transformer and
can be reset by pressing in on the black reset button.

Controls using 24 Vac

Before installing any connecting wiring, refer to
"Dimensional Data," p. 9 for the electrical access locations
provided on the unit and Table 2, p. 18
sizing guidelines.
NOTICE
Use Copper Conductors Only!
Failure to use copper conductors could result in
equipment damage as the equipment was not
designed or qualified to accept other types of
conductors.
1. Use copper conductors unless otherwise specified.
2. Ensure that the AC control wiring between the controls
and the unit's termination point does not exceed three
(3) ohms/conductor for the length of the run.
Note: Resistance in excess of 3 ohms per conductor
could cause component failure due to insufficient
AC voltage supply.
3. Be sure to check all loads and conductors for grounds,
shorts, and mis-wiring.
4. Do not run the AC low voltage wiring in the same
conduit with the high voltage power wiring.
5. Route low voltage wiring as per
Recommended Wire Size
18 gauge
0.75 mm^2
16 gauge
for AC conductor
Figure 16, p. 19.
RT-SVX058G-EN