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WARNING:
!
If the unit is equipped with a crank-
case heater, allow 24 hours prior
to continuing the start up procedures
to allow for heating of the refrigerant
compressor crankcase. Failure to
comply may result in damage and
could cause premature failure of
the system. This warning should
be followed at initial start up and any
time the power has been removed for
12 hours or longer.
Air Circulation — Leave the thermostat system
switch set to "Off" and set the thermostat fan
switch to "On". The blower motor should run
continuously. Check for air delivery at the
register(s). Ensure that there are no obstructions
at the registers or in the duct work. Set thermostat
fan switch to "Auto."
System Cooling
1.
Set the thermostat system switch to
"Cool" and the thermostat fan switch to
"Auto". Gradually lower the thermostat
temperature switch below room temper-
ature and observe that the blower,
compressor, and fan energize. Check that
air cooler than room temperature is being
discharged at the register. Listen for any
unusual noises. Locate the source and
correct as needed.
2.
After allowing the unit to run for several
minutes, set the temperature selector
above room temperature.
- The fan and compressor cycles
off with the thermostat.
- The blower should also stop
unless fan switch is set to "ON"
.
position
System Heating — If the unit has been equipped
with optional electric heater kits, set the system
thermostat switch to HEAT and set the thermostat
fan switch to AUTO. Verify that the compressor
and outdoor fan are not energized but that the
blower and heaters are. Check for warm air at
the supply registers.
12
UNIT MAINTENANCE
!
WARNING:
To avoid risk of electrical shock,
personal injury, or death, disconnect
all electrical power to the unit before
performing any maintenance or
service. The unit may have more than
one electrical supply.
Refrigerant Charging — Packaged air
conditioners are fully charged at the factory.
The system refrigerant charge can be checked
and adjusted through the service ports provided
on the front panel. Use only gauge lines which
have a "Schrader" depression device present to
actuate the valve. Draw a vacuum on gauge
lines to remove air before attaching them to the
service ports on the unit. Refrigerant charging
must be done by qualified personnel familiar
with safe and environmentally responsible
refrigerant handling procedures.
WARNING:
!
Single Packaged Air Conditioners are
shipped fully charged and ready for
installation. When a system is installed
according to these instructions, no
refrigerant charging is required. If
repairs make it necessary for
evacuation and charging, it should
only be done by qualified, trained per-
sonnel thoroughly familiar with this
equipment. Some local codes require
licensed installation/service per-
sonnel to service this type of equip-
ment. Under no circumstances should
the owner attempt to install and/or
service this equipment. Failure to com-
ply with this warning could result in
property damage, personal injury, or
death.
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