4 69-1385
Step 1. Prepare for Installation

❑Check Table 1 to make sure this thermostat is compatible with your sys tem. If not, return it to th e

retailer. For more information, call Honeywell Consumer Services, 1-800-468-1502, Monday -

Friday, 7 am to 5:30 pm, Central time.

Not compatible with any 120/240 volt circuit.
aCompatible with Honeywell 2-wire zone valves. Isolating relay required for 3-wire thermostats for zone valves.
Not compatible with 2-wire White-Rodgers no. 1361 valves.
bCompatible with hot water baseboard systems. Does not work efficiently on steam or gravity systems.
Table 1. Compatibility Information.
System Type Compatible with CT2095
Gas—Standing Pilot Yes
Gas—Electronic Ignition Yes
Gas-Fired Boilers Yesa,b
Gas—Millivolt No
Oil-Fired Boilers Yesa,b
Oil-Fired Furnace Yes
Electric Furnace Yes
Electric Air Conditioning Yes
Baseboard Electric (120/240 Line Volt) No
Heat Pumps/Multistage Equipment No