Aire-Flo 47 Manual de instrucciones de instalación - Página 11
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STEP 4 -- 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
handler for low‐voltage control power (24VAC - 40 VA
minimum)
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.
IMPORTANT !
If unit is equipped with a crankcase heater, it should
be energized 24 hours before unit start-up to prevent
compressor damage as a result of slugging.
SIZE CIRCUIT AND INSTALL SERVICE
DISCONNECT 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 PANEL
SERVICE
DISCONNECT
SWITCH
NOTE - Units are approved for use only with copper
conductors. Ground unit at disconnect switch or
connect to an earth ground.
Fire Hazard. Use of aluminum wire with this product
may result in a fire, causing property damage, severe
injury or death. Use copper wire only with this product.
Failure to use properly sized wiring and circuit breaker
may result in property damage. Size wiring and circuit
breaker(s) per unit rating plate.
ELECTROSTATIC
DISCHARGE
(ESD)
Precautions and
Procedures
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
WARNING
CAUTION
CAUTION
Electrostatic discharge can affect
electroniccomponents.Takecareduring
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
beforeperforminganyserviceprocedure
to neutralize electrostatic charge.
5 FEET
(1.5M)