Size Circuit And Install Disconnect Switch; Install Thermostat - Lennox Elite XC13-018-230 Installation Instructions Manual

STEP 5 -- ELECTRICAL -- Circuit Sizing and Wire Routing
In the U.S.A., wiring must conform with current local codes
and the current National Electric Code (NEC). In Canada,
wiring must conform with current local codes and the current
Canadian Electrical Code (CEC).
Refer to the furnace or air handler installation instructions
for additional wiring application diagrams and refer to unit
nameplate for minimum circuit ampacity and maximum
overcurrent protection size.
24VAC TRANSFORMER
Use the transformer provided with the furnace or air han­
dler for low‐voltage control power (24VAC - 40 VA mini­
mum)
WARNING
Electric Shock Hazard. Can cause injury
or death. Unit must be grounded in
accordance with national and local
codes.
Line voltage is present at all components
when unit is not in operation on units with
single‐pole contactors. Disconnect all
remote electric power supplies before
opening access panel. Unit may have
multiple power supplies.
SIZE CIRCUIT AND INSTALL DISCONNECT
1
SWITCH
Refer to the unit nameplate for minimum circuit ampacity, and
maximum fuse or circuit breaker (HACR per NEC). Install power
wiring and properly sized disconnect switch.
MAIN FUSE
BOX/BREAKER
DISCONNECT
SWITCH
NOTE — Units are approved for use only with copper conductors.
Ground unit at disconnect switch or to an earth ground.
PANEL
If unit is equipped with a crankcase heater, it should
be energized 24 hours before unit start-up to pre­
vent compressor damage as a result of slugging.
ELECTROSTATIC
DISCHARGE
(ESD)
Precautions and
Procedures
For complete information concerning specific component
wiring, refer to the unit wiring diagram located on the ac­
cess panel.
2

INSTALL THERMOSTAT

Install room thermostat (ordered separately) on an inside wall
approximately in the center of the conditioned area and 5 feet
(1.5m) from the floor. It should not be installed on an outside wall
or where it can be affected by sunlight or drafts.
THERMOSTAT
NOTE — 24VAC, Class II circuit connections are made in the control
panel.
FIGURE 11
Page 11
IMPORTANT !
CAUTION
Electrostatic discharge can affect
electronic components. Take care
during unit installation and service to
protect the unit's electronic controls.
Precautions will help to avoid control
exposure to electrostatic discharge by
putting the unit, the control and the
technician at the same electrostatic
potential. Touch hand and all tools on an
unpainted unit surface
performing any service procedure to
neutralize electrostatic charge.
5 FEET
(1.5M)
before
XC13 SERIES