Manual

Circulating Air Blower
1. Be sure electric power is OFF.
2. Set thermostat Heat-Cool selector to OFF.
3. Set thermostat fan switch to AUTO.
4. Turn electric power ON. Nothing should start running,
5. Set thermostat fan switch to ON. The circulating air blower
should come ON after a 30 second delay.
6. Reset thermostat fan switch to AUTO. The circulating air
blower should go OFF after a 30 second delay. Nothing
should be running.
Cooling
1. Be sure that electric power is OFF.
2. Set thermostat Heat-Coo! select to COOL.
3. Adjust thermostat setting to below room temperature.
4. Turn electric power ON. During power application check the
following:
a. Contactor - Contacts closing
b. Compressor - ON
c. Condenser fan motor - ON
d. Circulating air blower - ON (after delay)
5. Switch the thermostat to OFF, check the following:
a. Contactor contacts opening.
b. Compressor - OFF
c. Condenser fan motor - OFF
d. Circulating blower - OFF (after delay)
6. Turn electric power OFF
Auxiliary Heating
NOTE: Repeat circulating air blower procedure above if Auxiliary
Electric Heat is being installed after unit has been installed and
checked out.
Temperature Rise Check
Temperature rise is the difference between the supply and return
air temperatures. The temperature rise should be ± 2 ° F (!. 1°C) of
the temperature rise shown in FIGURE 12.
NOTE: The temperature rise can be adjusted by changing the
speed tap at the unit's blower terminal block. Refer to the unit's
Installation Instructions for airflow information.
A temperature rise greater than 60°F (33.3°C) is not recom-
mended. (This applies to electric heat only).
1. To check the temperature rise through the unit, place ther-
mometers in the supply and return air ducts as close to the
unit as possible.
2. Open ALL registers and duct dampers.
3. Set thermostat Heat-Cool selector to HEAT.
4. Set the thermostat temperature setting as high as it wil! go.
5. Turn electric power ON.
6. Operate unit AT LEAST 5 minutes, then check temperature
rise.
NOTE: The maximum outlet air temperature for all models is
200°F (93.35C). Maximum temperature rise for electric heat is
60°F (33.35C)
7. Set thermostat to normal temperature setting.
8. Turn electric power OFE
9. Change blower speed tap if 60°F (33.3°C)TemperatureRisewas
exceededand repeat.
10. Be sure to seal all holes in ducts if any were created during
this process.
Sequence of Operation
Cooling Mode: Energized (R,G,Y1) De-energized
(N/A)
(a) When high and low voltage is initially applied to unit:
(1)On a call for cooling ......... :
The compressor and condenser fan will energize. The evap-
orator blower motor will have a delay on and will energize
after 30 seconds.
(2)When the cooling setpoint has been satisfied ......... :
The compressor and condenser fan will de-energize immedi-
ately. The evaporator blower motor will have a delay off and
will de-energize after 30 seconds.
If temperature rise is excessive, verify proper airflow through the
unit. If temperature rise is inadequate, check for proper electrical
supply to the heater and verify correct airflow.
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