User Guide

ManualsBrandsBarber Colman ManualsHVAC Replacement PartsStrap-on Changeover Thermostat w/Conduit

Application

These thermostats are used primarily on combination

heating and cooling air conditioning units to sense

supply media temperature and reverse the control

action of the room temperature sensing element.

Units are hermetically sealed. TC-2942 is enclosed

type and has 1/2” conduit adapter. Fast responding

bimetal element actuates snap-acting SPDT with silver

contacts. Units are supplied with three color coded 16

gauge leads 3 ft. (914 mm) long.

Dimensions: 2 in. (51 mm) diameter x 1-1/2 in. (38

mm) high.

Table-1 Model Chart.

Options

TC-2931-204 with 10 ft. (3 m) cable and plug (which cannot

be extended) for unit ventilator.

TC-2931-205 with 3 ft. (914 mm) cable (which cannot be

extended) for CP-5341.

Accessories

None.

Pre-Installation

The thermostats are shipped with an attached flange and two

mounting springs for mounting on tubing or pipe up to 1-1/2”

(38 mm).

Before installing the thermostat, inspect the unit for any signs

of damage.

Part

Number

Type

Setpoint

°F (°C)

Differential

°F (°C)

Min. Hot

Water

Temp.

°F (°C)

Max.

Chilled

Water

Temp.

°F (°C)

Switch Ratings (AC Only)

Voltage

(Vac)

FLA

(Amps)

LRA

(Amps)

Pilot Duty

(VA)

TC-2931 Strap-On

Fixed

75 (24)

Approx.

Fixed 15

(8)

Approx.

90 (32) 60 (16)

120

240

5.8

2.9

34.8

17.4

125

TC-2942

Strap-On

Enclosed

a. Has 1/2” conduit connector

TC-2931

Open Type

TC-2942

Enclosed Type

TC-2931, TC-2942

Changeover Thermostats, Strap-On Type,

Summer/Winter

General Instructions

Summary of content (2 pages)

PAGE 1
TC-2931, TC-2942 Changeover Thermostats, Strap-On Type, Summer/Winter General Instructions Application These thermostats are used primarily on combination heating and cooling air conditioning units to sense supply media temperature and reverse the control action of the room temperature sensing element. Units are hermetically sealed. TC-2942 is enclosed type and has 1/2” conduit adapter. Fast responding bimetal element actuates snap-acting SPDT with silver contacts.
PAGE 2
Requirements Checkout The thermostat can be mounted in any position with one spring for pipe or tubing up to 1/2” (13 mm) or 2 springs hooked together for pipe or tubing up to 1-1/2” (38 mm). Expose the unit to a temperature below 62°F (17°C) and a circuit must be made between yellow and red (TC-2931) or between white and blue (TC-2942).