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3. If the desired heating blower speed is different
than the cooling speed, remove and discard
the jumper wire between terminals #6 and
#4. on the blower relay. Place the desired
heating blower speed lead on terminal
#6 and the desired cooling blower speed
lead on terminal #4 of the blower relay. Use
another wire tie (field supplied) to bundle the
remaining motor leads.
If Fixed Torque Variable Speed:
Check all factory wiring per the unit wiring
diagram and inspect the factory wiring
connections to be sure none loosened during
shipping or installation.
CAUTION:
!
To avoid personal injury or property
damage, make certain that the motor
leads cannot come into contact with
any uninsulated metal components of
the unit.
Low Voltage Connections
Room Thermostat — Several options are avail-
able for a room thermostat depending on the
accessories installed with the unit. The avail-
able thermostats recommended for use with
these units are listed with the accessories in
Table 1. Select a thermostat which operates in
conjunction with the installed accessories. The
thermostat should be mounted about five feet
above the ground on an inside wall. The thermo-
stat should be kept away from drafts, slamming
doors, lamps, direct sunlight, or in line with the
supply air flow.
To install the thermostat:
1. Position the sub base on an inside wall and
mark the mounting holes and thermostat
cable openings.
2. Cut out the cable opening and route the
thermostat cable from the unit's low voltage
compartment to the thermostat location.
The thermostat cable is supplied by the
installer.
3. Connect the cable leads to the sub base or
thermostat terminals and to the unit's low
voltage pigtails as shown in Figure 8.
10
A system wiring diagram is also provided on
the inside of the control panel cover.
4. Secure sub base or thermostat to the wall
using screws provided with the thermostat.
5. If sub base is used, install the correct
thermostat housing to sub base.
6. Refer to thermostat instruction sheet for
complete detailed mounting information.
Field Installed Electric Heat — This
Packaged Air Conditioner is designed to allow
optional electric heat to be field installed as
required by the building's particular heating
load. The options available for each unit are
shown in the heater kit installation instructions.
Install the heater kits as directed by the
installation instructions that come as part of the
heater kit. Follow all cautions and warnings as
directed.
START UP AND SYSTEM CHECK
Pre-Start Check List
• Verify that the unit is level to allow proper
condensate drainage.
• Verify that there is free airflow to and from the
outdoor coil and that all clearance require-
ments are met.
• Verify that the duct work is sealed to prevent
air leakage.
• Verify that the line voltage power leads are
securely connected and the unit is properly
grounded.
• Verify that the low voltage wires are securely
connected to the correct leads on the low
voltage terminal strip.
• Verify that all exterior panels are replaced
and securely fastened.
• Verify that the outdoor fan turns freely.
• Verify that the power supply branch circuit
overcurrent protection is sized properly.
• Verify that the thermostat is wired correctly.
The thermostat function switch should be
set to "Off" and the thermostat fan switch
should be set to "Auto'.
Start-Up Procedure
Close all electrical disconnects to energize the
system.
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