Installation guide

8. START-UPANDCHECKOUT
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 FHters -- Ensure air filters 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
the temperature set-point to it's highest setting.
Prior to applying electrical power to the outdoor
unit, ensure that the unit has been properly and
securely grounded.
Prior to applying electricity to the outdoor unit,
ensure power supply connections have been
made at the facility power interface and at the
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.
Functional Checkout:
CAUTmON'.
If equipped with a refrigerant
compressor crankcase heater, allow
24 hours prior to performing a function
checkout to allow for heating of the
refrigerant compressor crankcase.
Failure to comply may result in damage
and could cause premature failure of
the system.
Short CycJe Protection (select models) --
With the system operating in "Cooling" mode,
note the temperature setting of the thermostat,
and gradually raise the set-point temperature
until the outdoor unit and indoor blower de-
energize. Immediately lower the set-point
temperature of the thermostat to it's original
setting and verify that the indoor blower is
energized and that the outdoor unit remains de-
energized. Verify that, after approximately 5
minutes, the outdoor unit energizes and that the
temperature of the air supplied to the facility is
cooler than ambient temperature.
Heating -- If provided with heating equipment,
lower the thermostat temperature to the lowest
obtainable setting and set the thermostat function
switch to "Heating." The indoor blower and
outdoor unit should stop running. Increase the
set-point temperature of the thermostat to the
maximum setting. Verify that the heating
equipment has been energized (i.e., fossil fuel
burner operating, etc.) and that the indoor blower
energizes after a short period of time. Feel the
air being circulated by the indoor blower and
verify that it is warmer than ambient temperature.
Listen for any unusual noises. If present, locate
and determine the source of the noise and
correct as necessary.
_ndoor Blower -- Set the thermostat function
switch to "Cooling" and the fan switch to ON or
MAN. Verify that the indoor Blower is operating
and that airflow is not restricted. Set the fan
switch back to Auto.
Adjustment of Refrigerant Charge:
WARNmNG:
Split System Air Conditioning
equipment contains liquid and gaseous
refrigerant under pressure. Adjustment
of refrigerant charge should only be
attempted by trained
personnel thoroughly familiar with the
equipment. Under no circumstances
should the homeowner attempt to install
and/or service this equipment. Failure
to comply with this warning could result
in equipment damage, personal injury,
or death.
CooJing -- Gradually lower the thermostat
temperature set-point below the actual room
temperature and observe that the outdoor unit and
indoor blower energize. Feel the air being circulated
by the indoor blower and verify that itis cooler than
ambienttemperature. Listen for any unusual noises.
If present, locate and determine the source of the
noise and correct as necessary.