10
Electric Heat Package (optional)
This heat pump is shipped without an auxiliary
electric heat kit installed. If electric heat is desired,
an accessory Heater Kit must be fi eld installed.
Refer to Table 2 (page 9) for blower speeds.
• Select the correct size heat package for
the installation. See specifi cations sheet
for available kits and application. Install the
heater kit according to the to the installation
instructions provided with the kit.
• Installation is most easily accomplished before
making duct or electrical connections.
Grounding
WARNING:
The unit cabinet must have
an uninterrupted or unbroken
electrical ground to minimize
personal injury if an electrical
fault should occur. Do not use gas
piping as an electrical ground!
This unit must be electrically grounded in
accordance with local codes or, in the absence
of local codes, with the National Electrical Code
(ANSI/NFPA 70) or the CSA C22.1 Electrical
Code. Use the grounding lug provided in the
control box for grounding the unit.
STARTUP & ADJUSTMENTS
Pre-Start Checklist
The following check list should be observed prior
to starting the unit.
Is the unit level? Unit should be level or slightly
slanted toward the drain for proper condensate
drainage.
Is the unit installed with the proper clearances
as listed in Figure 2 (page 5)?
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 overcurrent protection properly sized?
Is the thermostat wired correctly? Is it installed
in a proper location?
Start-Up Procedure
The control circuit consists of an anti-short cycle
timer that will not let the compressor re-start
before 5 minutes have elapsed.
1. Set the system mode to OFF and the
temperature mode to its highest setting.
2. Turn power on at the disconnect switch.
3. Set the system mode to ON or COOL.
4. Set the temperature mode below room
temperature. Verify that the indoor blower,
outdoor fan, and compressor energize and
the cooling function starts.
5. Verify the discharge air grilles are adjusted
and the system air is balanced.
6. Verify the duct work has no air leaks.
7. Verify the condensate drain is installed
correctly and functions properly.
8. Set the temperature mode above room
temperature. The unit should stop.
9. Instruct the homeowner on unit and thermostat
operation and fi lter servicing.
Air Circulation
Leave the thermostat system mode on OFF,
and set the fan mode to ON. Blower should
run continuously. Check the air delivery at the
supply registers and adjust register openings
for balanced air distribution. Examine ducts for
leaks or obstruction if insuffi cient air is detected.
Set the thermostat fan mode to AUTO. The blower
should stop running.
System Heating
Set the thermostat system mode to HEAT and
the fan mode to AUTO. Change the thermostat
temperature selector above the existing room
temperature and check for the discharge of warm
air at the supply registers.
System Cooling
Set the thermostat’s system mode to COOL and
the fan mode to AUTO. Change the thermostat
Defrost Cycle Control
The Demand Defrost controls the defrost cycle in
response to an adaptive demand algorithm that
uses coil temperature and ambient temperature.
It provides user selectable defrost termination
temperatures (50° F - 80° F coil temperature).
Summary of Contents for Q5RD Series
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