THP9045 Wiring Module
THP9045A1007
R C G Y K
APPLICATION
The THP9045 Wiring Module is designed to be used with
applicable thermostats in 1 Heat/1 Cool retrofit applications
where only 4 wires are available. The K terminal on the
thermostat can be used to operate both the fan and
compressor on a single wire, and the module is designed to
receive the signal from the K terminal, split that signal and re-
route it to operate the compressor, and/or fan for normal
operation.
Use with the following thermostats:
— THX9321R
— T2060F3080
FEATURES
• Can be used when 5 wires are needed and only 4 wires
are available.
• Mounts easily on or near HVAC equipment.
• Easy push wire terminals that provide a secure lock
with no need to screw in wires.
INSTALLATION
1. The THP9045 Wiring Module can be equipment- or
wall-mounted in any orientation or as dictated by the
surroundings.
2. Holes are sized for # 6 sheet metal screws (not
included).
3. Precise leveling of the THP9045 module is not required.
4. Identify the four wires in the wall and connect to the R,
C, W, and K terminals on the thermostat.
5. Wire the K terminal on the thermostat to the K terminal
on the THP9045 module.
6. Wire the R and C terminals on the thermostat to the R
(power) and C (common) terminals on the THP9045
module and equipment.
7. Wire the W terminal from the thermostat to the W (heat
relay) terminal on the HVAC equipment.
M27134
8. Wire the Y and G terminals on the Module to the Y
(Compressor Relay) and G (Fan Relay) terminals on the
HVAC equipment.
LIVING SPACE
HEAT PUMP
CONVENTIONAL
O/B
1
AUX/E
2
Y
3
Y2
4
G
5
L
6
K
7
8
THERMOSTAT
Fig. 1. Example wiring diagram for THP9045 wire module.
INSTALLATION INSTRUCTIONS
EQUIPMENT AREA
THP9045A1007
R C G Y K
W
9
SYSTEM
POWER
C
W2
10
R
Y
11
C
SYSTEM
R
Y2
12
COMMON
HUM
G
13
FAN RELAY
14
HUM
HVAC EQUIPMENT
K
15
DHUM
16
DHUM
Automation and Control Solutions
Honeywell Golden Valley, MN 55422
Assembled in Mexico
COMPRESSOR
HEAT RELAY
RELAY
M27106
69-2065EFS-01