Honeywell RTHL3550, Quick Installation Manual

Page: 12 / 64

69-2584ES—01 10
If your system type is:
q
Single Stage Heat and Cool
Congratulations, you’re done!
If your system type is:
q
Multistage Heat and Cool
q
Heat Pump* without Backup Heat
q
Heat Pump* with Backup Heat
q
Heat Only
q
Cool Only
Continue with advanced installation
on page 12 to match your thermostat to your system
type.
*Heat Pump—an air conditioner that provides cooling
in the summer, and also runs in reverse in the winter to
provide heating.
If you are not sure of your system type or if you have
other questions, call us toll-free at 1-800-468-1502.
This thermostat works on 24 volt or 750 mV systems.
It will NOT work on multi-stage heat pump systems or
120/240 Volt systems.
10
If your system type is...