Lennox Elite ELS Series, Руководство по установке

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Page 14
TRANSFORMER – 24V
Use the transformer provided with the air conditioning unit
for low-voltage control power (24V, 70VA)
NOTE –
The addition of accessories to the system could
exceed the 70VA power requirement of the factory-pro-
vided transformer. Measure the system’s current and
voltage after installation is complete to determine trans-
former loading. If loading exceeds the factory-provided
transformer capacity, a larger field-provided transformer
will need to be installed in the system.
Refer to the unit nameplate for minimum circuit ampacity amperage
minimum, and maximum fuse or circuit breaker fusible (HACR per
NEC). Install power wiring and properly sized disconnect switch.
NOTE
—
UNITS ARE APPROVED FOR USE ONLY WITH COPPER
CONDUCTORS. GROUND UNIT AT DISCONNECT SWITCH OR TO AN EARTH
GROUND.
CIRCUIT SIZING AND DISCONNECT SWITCH
DISCONNECT
SWITCH
MAIN FUSE
BOX/BREAKER
PANEL
1
2
TYPICAL HIGH VOLTAGE POWER SUPPLY
CONNECTIONS
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, drafts or vibrations.
THERMOSTAT
5 FEET
(1.5M)
INSTALL THERMOSTAT
3
TYPICAL CONTROL WIRING
4
Install low voltage wiring from outdoor to indoor unit and from
thermostat to indoor unit as illustrated.
WARNING
Electric Shock Hazard. Can cause injury or
death. Unit must be properly 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.