6
Maximum Fuse/Circuit Breaker Size — Circuit
protection for the outdoor unit must be compat-
ible with the maximum fuse/circuit breaker size
listed on the outdoor unit data label.
COPPER WIRE SIZE — AWG
(1% Voltage Drop)
Supply Wire Length-Feet
Supply Circuit
Ampacity200 150 100 50
6 8 10 14 15
4 6 8 12 20
4 6 8 10 25
4 4 6 10 30
3468 35
3468 40
2346 45
2346 50
Wire Size based on N.E.C. for 60° type copper
conductors.
Disconnect Switch — An electrically compatible
disconnect switch must be within line of sight of
the outdoor unit. This switch shall be capable of
electrically de-energizing the outdoor unit.
Optional Equipment — Optional equipment re-
quiring 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 jurisdic-
tion, and the installation instructions provided
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 fi lters are clean and in
place prior to operating the equipment.
Thermostat — Set the room thermostat function
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 panels
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.
Indoor Blower — Set the thermostat function
switch to COOLING and the fan switch to ON.
Verify that the indoor blower is operating and
that airfl ow is not restricted. Set the fan switch
back to AUTO.
Blower Time Delay Relay (Select Models):
A time delay relay may be provided with the
unit and must be installed in the indoor section.
The relay will keep the indoor blower running
an additional 40 seconds for increased cooling
effi ciency after the outdoor unit shuts off. The
relay has four terminals and one mounting hole.
Connect terminal “1” to load side of blower relay.
Connect terminal “2” to terminal “R” of T’stat.
Connect terminal “3” to common terminal at
blower relay or transformer. Connect terminal
”4” to terminal “G” on T’stat.
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