Installation
RT-SVX058D-EN 19
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. 19 for AC conductor
sizing guid
elines.
NOTICE:
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of
conductors. Failure to use copper conductors could
result in equipment damage.
1. Use copper conductors unless otherwise
specified.
2. Ensure that the AC control wiring between the controls
and the unit’s term
ination point does not exceed three
(3) ohms/conductor for the length of the run.
Note: Resis
tance in excess of 3 ohm
s per conductor could
cause component failure due to insufficient AC
voltage supply.
3. Be sure to check all loads an
d condu
ctors 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 per illustrations on the next
page.
Tabl
e 2. Electromechanical t
hermost
at 24 Vac
conductors
Distance from Unit to
Control Recommended Wire Size
000–460 feet 18 gauge
000–140 m 0.75 mm
2
461–732 feet 16 gauge
Figure 16. Conventional thermostat field wiring
diagram
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