Honeywell RTH221 オーナーマニュアル
8
11 If your system type is...
If your system type is:
q
Single Stage Heat and Cool
q
Heat Only or Cool Only
Congratulations, you’re done!
If your system type is:
q
Heat pump
q
High efficiency furnace
q
Hot water
q
Electric furnace
q
Gas/oil steam
q
Gravity system
Continue with Advanced Installation to match your thermostat to your system
type.
If you are not sure of your system type or if you have other
questions, call us toll-free at 1-800-468-1502.
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 conventional systems.
Advanced Installation
Enter System Setup
To enter system setup, press and hold
both the
s
and
t
buttons until the display
changes (approximately 5 seconds).
Changing Settings
1. Press the
s
or
t
button to change
the setting.
2. Press the
s
and
t
buttons
simultaneously for one second to
advance to the next function.
3. Press the RUN button to exit and save
settings.
M33785
Heat Off Cool
Auto On
Fan
Heat Off Cool
Auto On
Fan
Set
Hold
Run
Function
Setting
Setting
5
5
M33786
Set
Hold
Run