Selectthecorrectsizeheatpackageforthe
installation.
Followinstallationinstructionsprovidedwith
eachheaterkit.
• Installationis most easily accomplished
beforemakingductorelectricalconnections.
Blowerspeedmustbesettohighspeedfor
electricheatoperation.
SYSTEM OPERATION
1. PRE-START CHECK LIST
The following check list should be observed
prior to starting the unit.
[] Istheunitlevel? Itshouldbelevelorslightly
slanted toward the drain for proper
condensate drainage.
[]
[]
[]
[]
[]
Isthe unit installedwith the proper clearances
(See Figure 2)?
Is the wiring correct according to the wiring
diagram and electrical codes?
Are all the wiring connections tight? Check
the condenser fan to make sure it turns
freely.
Is the overcu rrent protection properlysized?
Is the thermostat wired correctly? Is it
installed in a proper location?
2. START=UPPROCEDURE
The control circuit consists of an anti-short cycle
timer that will not let compressor re-start before
five (5) minutes have elapsed.
Set the thermostat system switch to OFF, and
the thermostat fan switch toAUTO. Apply power
at the disconnect switch and check the system
operations:
a. Air Circulation -- Leave the thermostat
system switch at OFF, and set the thermostat
fan switch to ON. Blower should run
continuously. Check the air delivery at the
supply registers and adjust register openings
for balanced air distribution. Examine
ductwork for leaks or obstruction ifinsufficient
air is detected.
Set the thermostat fan switch to AUTO; the
blower should stop running.
b. System Heating -- Set the thermostat
system switch to HEAT and set the the rmostat
fan switch to AUTO. Position the thermostat
temperature selector above the existing room
temperature and check for the discharge of
warm air at the supply registers.
c. System Cooling -- Set the thermostat
system switch to COOL and set the thermostat
fan switch to AUTO. Position the thermostat
temperature selector below the existing room
temperature. Allow the cooling system to
operate for several minutes and check for the
discharge of cool air at the supply registers.
d. Short cycle protection-- The control circuit
is equipped with a time-delay feature for
protection against short cycling. With the
system operating in the cooling mode,
gradually raise the thermostat temperature
setting until the whole system de-energizes.
Immediately lower the thermostat
temperature to the original setting and verify
that the indoor blower is energized. After
approximately 5 minutes the compressor and
the outdoor fan will energize.
e=
Emergency Heat -- (Available only when
Electric heat is supplied) Set the thermostat
system switch to EM HT and set the
thermostat fan switch to either AUTO
(intermittent air) or to ON (continuous air).
Position the thermostat temperature selector
above the existing room temperature and
check the following:
1. The thermostat auxiliary heat light
(RED) should be on.
2. The heat pump compressor and the
fan should not run; low voltage
circuit remains energized.
3. The blower will run according to the
thermostat fan switch setting.
10
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