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TH146-P-2H1C 400-280-014-A 5/23/07 1/11
TH146-P-2H1C
Installation Guide
Programmable 2H1C Controller
The TH146-P-2H1C programmable controller can be used with any
of the following heating/cooling systems:
Heat pump - 1H1C, 2H1C
HVAC - 1H, 1C, 1H1C
The following devices can be connected to the controller:
air recirculation fan
humidifier
dual-register meter (dual energy)
remote control device (for the unoccupied mode)
• CT280-2H1C control module
• TH146-P console with two wall anchors and mounting screws
• AC144-03 outdoor temperature sensor (3 m or 10 ft) with mount-
ing clip (see section 2.6)
• RC845 relay (see section 2.4)
• AC146-410 plenum temperature sensor (see section 2.7)
• CT241 telephone controller (see section 2.9)
• AC130-12 wall plate
Configure the control module according to your type of heating/cool-
ing system using DIP switches on the back of the module.
Install the control module near the heating/cooling system, away
from any heat source.
Install the console in a central location. Avoid locations with air
drafts (e.g., top of staircase or air outlet) or stagnant air (behind a
door). Do not install the console on a wall hiding air ducts nor
expose it to direct sunlight.
NOTE: If this controller replaces an old thermostat, any two of the
wires that were connected to the thermostat can be used to connect
the user console to the control module. The maximum wiring length
is 30 m (100 ft).
CT280-2H1C Control Module
TH146-P User Console
AC144-03 Outdoor
Temperature Sensor
Removable
Connector *
Removable
Connector *
* To remove a connector from the control module, pry with a screwdriver.
1. Introduction
1.1
Applications
1.2
Supplied Parts
1.3
Accessories
2. Installation
2.1
Control Module (CT280-2H1C)
2.2
User Console (TH146-P)
400-280-014-A (TH146-P-2H1C) ENG.fm Page 1 Wednesday, May 23, 2007 4:12 PM