Step 1: Prepare For Installation - Honeywell MAGICSTAT 3355 Owner's Manual

Step 1: Prepare for Installation

Check Table 1 to make sure this thermostat is compatible with your system. If not, return to the
retailer. For more information, call Honeywell Customer Assistance, toll-free 1-800-468-1502.
Gas—Standing Pilot
Gas—Electronic Ignition
Gas-Fired Boilers
Gas—Millivolt
Oil-Fired Boilers
Oil-Fired Furnace
Electric Furnace
Electric Air Conditioning
Baseboard Electric (120/240 Line Volt)
Heat Pumps/Multistage Equipment
Not compatible with any 120/240 volt circuit.
Compatible with 2-wire Honeywell Zone Valves. Isolating relay required for 3-wire thermostats for
a
zone valves. Not compatible with 2-wire White-Rodgers no. 1361 Valves.
Compatible with hot water baseboard systems. Will not work efficiently on steam or gravity
b
systems.
Table 1. Compatibility Chart.
System Type Compatible With CT3355
4
Yes
Yes
a, b
Yes
No
a, b
Yes
Yes
Yes
Yes
No
No
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