6
START UP & ADJUSTMENTS
Pre-Start Check List
√
Verify the indoor unit is level and allows proper condensate
drainage.
√
Verify the outdoor coil and top of the unit are free from
obstructions and debris, and all equipment access/control
panels are in place.
√
Verify air filters are cleaned and properly installed.
√
Verify duct work is sealed to prevent air leakage.
√
Verify line voltage power leads are securely connected
and the unit is properly grounded.
√
Verify low voltage wires are securely connected to the
correct leads on the low voltage terminal strip.
√
Verify power supply branch circuit overcurrent protection
is sized properly.
√
Verify the thermostat is wired correctly.
Start-Up Procedures
The thermostat's function mode should be set to OFF and
the fan mode should be set to AUTO. Close all electrical
disconnects to energize the sy stem.
Air Circulation - Indoor Blower
1. Set the thermostat system mode on OFF and the fan mode
to ON.
2. Verify the blower runs continuously. Check the air delivery
at the supply registers and adjust register openings for
balanced air distribution. If insufficient air is detected,
examine ductwork for leaks or obstructions.
3. Set the thermostat fan mode to AUTO and verify the blower
stops running.
System Cooling
1. Set the thermostat’s system mode to COOL and the
fan mode to AUTO. Gradually lower the thermostat
temperature setpoint below room temperature and verify
the outdoor unit and indoor blower energize.
2. Verify blower wheel is spinning in direction indicated by
arrow. Feel the air being circulated by the indoor blower
and verify that it is cooler than ambient temperature. Listen
for any unusual noises. If unusual sounds occur, determine
the source of the noise and correct as necessary.
3. Verify HI and LO refrigerant pressures.
4. Allow the system to operate for several minutes and then
set the temperature selector above room temperature.
Verify the fan and compressor cycle off with the thermostat.
NOTE:
The blower should also stop unless fan mode is
set to the ON position.
System Heating (optional)
1. Set the thermostat's system mode to HEAT and the
temperature mode above room temperature.
2. Verify the optional heating equipment (furnace or electric
heat) and indoor blower energize. Feel the air being
circulated by the indoor blower and verify that it is warmer
than ambient temperature. Listen for any unusual noises.
If unusual sounds occur, determine the source of the noise
and correct as necessary.
AIR CONDITIONER MAINTENANCE
WARNING:
To prevent 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.
Proper maintenance is important to achieve optimum
performance from the air conditioner. The ability to properly
perform maintenance on this equipment requires certain
mechanical skills and tools. If you do not possess these
skills, contact your dealer for maintenance. Consult your
local dealer about the availability of maintenance contracts.
Routine maintenance should include the following:
• Inspect and clean or replace air filters at the beginning
of each heating and cooling season, or more frequently
if required.
• Inspect the condensate drain and outdoor coil at the
beginning of each cooling season. Remove any debris.
Clean the outdoor coil and louvers as necessary using a
mild detergent and water. Rinse thoroughly with water.
• Inspect the electrical connections for tightness at the
beginning of each heating and cooling season. Service
as necessary.
• To access the internal compnents of the unit, refer to
for panel installation.
CAUTION:
The unit should never be operated without a
filter in the return air system. Replace disposable
filters with the same type and size.
• Do not attempt to add additional oil to motors unequipped
with oil tubes. The compressor is hermetically sealed at
the factory and does not require lubrication.
• To access the internal compnents of the unit, refer to
for panel installation.
Panel Removal
1. Remove screws securing the panel.
2. Slide the panel up towards the top pan in order to clear
the bottom flange from the base pan. See
.
3. Swing the bottom of the panel out and pull the panel down
to remove it from the unit.
Panel Installation
1. Insert the top corners of side panel flanges into the corner
post channels as shown in Detail A in
.
2. Slide the panel up into the top pan. (You may need to push
on the center of the panel at the top in order to clear the
top pan edge).
3. Swing the panel in and push down until the panel is resting
on the top edge of the base pan wall as shown in Detail
B.
4. Insert screws into the panel to secure it to the unit.
