Honeywell CT8775A User Manual download pdf (Page 3)

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STEP 1. PREPARE FOR INSTALLATION

❑ Check Table 1, the compatibility chart, to make sure the thermostat is compatible with your system. If your system

is not compatible, call Honeywell Customer Care, toll-free, 1-800-468-1502.

Table 1. Compatibility Chart.

Compatible with 2-wire Honeywell zone valves. Not compatible with Taco zone valves and 2- or 3-wire White-

Rodgers zone valves (No. 1311 and 1361).

Not compatible with any 120/240 volt system.

Package Contents

• Thermostat • Decorator cover plate • Screws and wall anchors

• Wiring labels • Owner’s Guide

Tools for Installation

• Screwdriver • Drill • Hammer

• Needle nose pliers • Drill bits (3/16 in. drywall,

7/32 in. plaster)

System Type

Compatibility with

CT8775A

Compatibility with

CT8775C

Gas or Oil Warm Air Yes Yes

Electric Warm Air No Yes

Gas or Oil Hot Water

Yes

Gas or Oil Steam Yes Yes

Gas or Oil Gravity Yes Yes

Gas Millivolt No No

Electric Air Conditioning No Yes

Baseboard Electric (120/240 line volt)

No No

Single Stage Heat Pump No Yes

Multistage Heat Pumps/Multistage Equipment No No

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Honeywell CT8775A User Manual Page 3