Step 1. Prepare For Installation - Honeywell CT3500 Owner's Manual

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.
Gas — Standing Pilot
Gas — Electronic Ignition
Gas-fired Boilers
Gas — 750 Millivolt Heat Only
Oil-Fired Boilers
Oil-Fired Furnace
Electric Furnace
Electric Air Conditioning
Baseboard Electric (120/240 line volt)
Single Stage Heat Pump
Multistage Heat Pumps/Multistage Equipment
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
• Wiring labels
Tools Required
• Screwdriver
• Drill
Table 1. Compatibility Chart.
System Type
b
c
• Wallplate
• Owners manual
Compatibility with CT3500/CT3595
Yes
Yes
a
Yes
Yes
a
Yes
Yes
Yes
Yes
No
Yes
No
5
• Screws and anchors
69-1199—4