Making Electrical Connections; Startup And Checkout; Functional Checkout - Nordyne 13 SEER User Information

7. MAKING ELECTRICAL
CONNECTIONS
! WARNING:
Turn off all electrical power at the
main circuit box before wiring
electrical power to the outdoor unit.
Failure to comply may cause severe
personnel injury or death.
Wiring Diagram/Schematic — A wiring dia-
gram/schematic is located on the inside cover
of the electrical box of the outdoor unit. The
installer should become familiar with the wiring
diagram/schematic before making any electri-
cal connections to the outdoor unit.
Outdoor Unit Connections — The outdoor
unit requires both power and control circuit
electrical connections. Refer to the unit wiring
diagram/schematic for identification and loca-
tion of outdoor unit field wiring interfaces.
Control Circuit Wiring — The outdoor unit is
designed to operate from a 24 VAC Class ll
control circuit. Control circuit wiring must com-
ply with the current provisions of the "National
Electrical Code" (ANSI C1.) and with applicable
local codes having jurisdiction.
Thermostat Connections — Thermostat con-
nections should be made in accordance with
the instructions supplied with the thermostat,
and with the instructions supplied with the in-
door equipment.
Electrical Power Wiring — Electrical power
wiring shall comply with the current provi-
sions of the "National Electrical Code" (ANSI
C1.) and with applicable local codes having
jurisdiction. Use of rain tight conduit is rec-
ommended. Electrical conductors shall have
minimum circuit ampacity in compliance with
the outdoor unit rating label. The facility shall
employ electrical circuit protection at a cur-
rent rating no greater than that indicated on
the outdoor unit rating label.
Disconnect Switch — An electrically compat-
ible disconnect switch must be within line of
sight of the outdoor unit. This switch shall be
capable of electrically de-energizing the out-
door unit.
4
Optional Equipment — Optional equipment
requiring connection to the power or control
circuits must be wired in strict accordance with
current provisions of the "National Electrical Code"
(ANSI C1.), with applicable local codes having
jurisdiction, and the installation instructions pro-
vided with the equipment. Optional Equipment
(e.g.: liquid line solenoid valves, hard start kits,
low suction pressure cutout switch kit, high pres-
sure cutout switch kit, refrigerant compressor
crankcase heater, etc.) should be installed in
strict accordance with the manufacturer's instal-
lation instructions.

8. STARTUP AND CHECKOUT

! WARNING:
Ensure electrical power to the unit is off
prior to performing the following steps.
Failure to do so may cause personal
injury or death.
Air Filters — Ensure air filters are clean and in
place prior to operating the equipment.
Thermostat — Set the room thermostat func-
tion switch to OFF, fan switch to AUTO, and
move temperature setpoint to its highest setting.
Prior to applying electrical power to the outdoor
unit, ensure that the unit has been properly and
securely grounded, and that power supply con-
nections have been made at both the facility
power interface and outdoor unit.
Outdoor Unit — Ensure the outdoor coil and
top of the unit are free from obstructions and
debris, and all equipment access/control pan-
els are in place.
Using extreme caution, apply power to the unit
and inspect the wiring for evidence of open,
shorted, and/or improperly wired circuits.

Functional Checkout:

! CAUTION:
If equipped with a compressor
crankcase heater, wait 24 hours prior to
performing a function checkout to allow
for heating of the compressor
crankcase. Failure to comply may result
in damage and could cause premature
failure of the system.