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5 69-1199—4
STEP 1. PREPARE FOR INSTALLATION
q 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.
a
Compatible with 2-wire Honeywell and Taco zone valves. Not compatible with 3-wire zone valves or 2-wire White
Rodgers no. 1361 zone valves.
b
Millivolt system must be heating only.
c
Not compatible with any 120/240 volt system.
Package Contents
• Thermostat • Wallplate • Screws and anchors
• Wiring labels • Owners manual
Tools Required
• Screwdriver
• Drill
System Type Compatibility with CT3500/CT3595
Gas — Standing Pilot Yes
Gas — Electronic Ignition Yes
Gas-fired Boilers
Yes
a
Gas — 750 Millivolt Heat Only
b
Yes
Oil-Fired Boilers
Yes
a
Oil-Fired Furnace Yes
Electric Furnace Yes
Electric Air Conditioning Yes
Baseboard Electric (120/240 line volt)
c
No
Single Stage Heat Pump Yes
Multistage Heat Pumps/Multistage Equipment No