Nortek PPH3RF Series, Installation Instructions Manual

Page: 9 / 20

9
Thermostat Connections
• The heat-cool thermostat is equipped with a system
HEAT-COOL switch, which provides a positive means
of preventing simultaneous operation of the heating and
cooling units. The thermostat is also equipped with an
ON-AUTO fan switch which allows the home owner to
operate the indoor blower when air circulation is desired.
• Connect the low voltage wires to the respective terminals
on the thermostat base. See Figure 8 and the thermostat
instruction sheet for more detailed wiring information.
• The thermostat should be mounted about 5 feet above
the floor on an inside wall. DO NOT install the thermostat
on an outside wall or any other location where its
operation may be adversely affected by radiant heat from
fireplaces, sunlight, or lighting fixtures, and convective
heat from warm air registers or electrical appliances.
Refer to the thermostat manufacturer’s instruction sheet
for detailed mounting information.
controls high speed cooling and heating operations and
the red wire controls the electric heating operation.
CAUTION:
To avoid personal injury or property damage,
make certain that the motor leads cannot come
into contact with any metal components of the
unit.
3. Verify the required speed from the airflow data found
in Table 2 (page 8) . Place appropriate wire on the
appropriate motor speed tap for the required airflow.
4. Check all factory wiring per the unit wiring diagram and
inspect the factory wiring connections to be sure none
loosened during shipping or installation.
Figure 8. Typical Heat Pump Thermostat Connections
6
7
8
9
2
3
4
5
1
C
G
O
W2
Y1
Y2
E
R
INDOOR
TERMINAL
THERMOSTAT
DEFROST
BOARD
*HUD
Outdoor
Thermostat
BROWN
ORANGE
ACCESSORY
HEAT PLUG
W2 OUT W2 IN
**Optional 2nd Stage
Outdoor Thermostat
(Field Supplied)
6
7
8
9
2
3
4
5
1
C
G
O
W2
Y1
Y2
E
R
INDOOR
TERMINAL
THERMOSTAT
DEFROST
BOARD
*HUD
Outdoor
Thermostat
ACCESSORY
HEAT PLUG
BROWN
ORANGE
W2 OUT W2 IN
Typical Wiring for 2-Stage Cool, 1 Stage Electric Heat
Typical Wiring for 2-Stage Cool, 2 Stage Electric Heat
NOTE: See Outdoor Thermostat Options section for more information.
*HUD Outdoor thermostat is provided in the branding kit.
**Optional 2nd stage outdoor thermostat is field supplied.