CAUTION: EQUIPMENT DAMAGE
HAZARD. To prevent possible
compressor damage, do not operate
cooling system when outdoor
temperature is below 50°F (10°C).
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Operating Manual
M27924
HOLD
Quick reference to controls
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Digital display
(see page 3).
Temperature Buttons
Press to adjust temperature
settings (see page 7–8).
Hold Button
Press to override
programmed temperature
Function Buttons
Press to select the function displayed just above each
button. (Functions change depending on the task.)
69-2265EFS—01 2 570-212
control (see page 10).
P330 Series
M27874
Quick reference to display screen
Current inside temperature
Early Recovery
(see page 13)
Low battery warning
(see page 14)
Set Time/Day/Program
(see pages 4 & 7)
Function buttons
Press the button beneath each function to
view or change settings (functions change
depending on the task)
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Current program period
Period 1/2/3/4 (see pages 7-8)
Current time/day
(see page 4)
Temperature setting
(see pages 7–8)
System status
Heat /Cool (If
flashing, see page 12)
Auxiliary heat
(Only for heat pumps
with auxiliary heat)
System setting
Heat/Cool/Auto/Off/Em
Heat (see page 6)
Fan setting
Auto/On (see page 5)
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Operating Manual
M27875
HOLD
M27876
HOLD
Set the time and day
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Press SET TIME/DAY/PROGRAM, then adjust time
Press CHOOSE DAY, then select current day
69-2265EFS—01 4 570-212
1. Press the SET TIME/DAY/PROGRAM button, then press sor tto set the
clock time.
2. Press the CHOOSE DAY button, then
press sor tto select the day of the
week.
3. Press DONE to save & exit.
Note: If the SET TIME/DAY/PROGRAM option is not
displayed, press DONE or SET PROGRAM.
Note: If the display flashes Set Time, the
thermostat will follow your settings for the
weekday time period until you reset the time
and day.
P330 Series
M27877
M27878
Select the fan setting
Press the FAN button to select Auto or On.
In “Auto” mode (the most commonly used
setting), the fan runs only when the heating
or cooling system is on. If set to “On,” the fan
runs continuously.
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Operating Manual
M27877
M27879
Select the system setting
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Press the SYSTEM button to select:
• Heat: Thermostat controls only the
heating system.
• Cool: Thermostat controls only the
cooling system.
• Off: Heating and cooling systems are off.
• Auto: Thermostat automatically selects
heating or cooling depending on the
indoor temperature.
Note: The Auto and Em Heat
system settings may not
appear, depending on how your
thermostat was installed.
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• Em Heat (only for heat pumps with
auxiliary heat): Thermostat controls
Emergency and Auxiliary Heat.
Compressor is locked out.
P330 Series
Energy Star® settings for maximum cost savings
This thermostat is pre-set to use Energy Star® program settings.
°
°
°
°
Cool
(Mon-Fri)
75
83
75
78
Heat
(Sat-Sun)
°
70
°62
[Or cancel
period]
°70
[Or cancel
period]
°
62
°
°
°
°
Cool
(Sat-Sun)
75
83
[Or cancel
period]
75
[Or cancel
period]
78
To restore Energy Star
default settings:
°
1. Press SET TIME/DAY/
°
°
PROGRAM.
2. Press SET PROGRAM.
3. Press DONE and NEXT
at the same time for 4
seconds.
°
Heat
Period 1
(6:00 am)
Period 2
(8:00 am)
Period 3
(6:00 pm)
Period 4
(10:00 pm)
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(Mon-Fri)
70
62
70
62
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Operating Manual
M27879
M27880
M27881
HOLD
To adjust program schedules
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1. Press SET TIME/DAY/PROGRAM, then SET
PROGRAM.
2. Press sor tto set your weekday Period 1
time (Mon–Fri), then press NEXT.
3. Press sor tto set the temperature for this
time period, then press NEXT.
4. Set time and temperature for the next time
period (Period 2). Repeat steps 2 and 3 for
each weekday time period.
5. Press NEXT to set weekend time periods (SatSun), then press DONE to save & exit.
Note: Make sure the thermostat is set to the system you
69-2265EFS—01 8 570-212
want to program (Heat or Cool).
Note: You can press CANCEL PERIOD to eliminate unwanted
time periods (except Period 1).
P330 Series
M28595
HOLD
Program schedule override (temporary)
Press to temporarily adjust temperature.
Press to cancel temporary setting and
resume program schedule.
Note: Make sure the thermostat is set
to the system you want to control (heat,
cool or auto).
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Press sor tto immediately adjust
the temperature. This will temporarily
override the temperature setting for the
current time period.
The new temperature will be
maintained only until the next
programmed time period begins (see
page 7). For example, if you want to
turn up the heat early in the morning,
it will automatically be lowered later,
when you leave for the day.
To cancel the temporary setting at any
time, press RUN PROGRAM.
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Operating Manual
M27883
HOLD
Program schedule override (permanent)
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Press to permanently adjust temperature.
Press to cancel “Hold” setting and
resume program schedule.
Note: Make sure the thermostat is set
to the system you want to control (heat,
cool or auto).
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Press HOLD to permanently adjust
the temperature. This will override
the temperature settings for all time
periods.
The “Hold” feature turns off the
program schedule and allows you to
adjust the thermostat manually, as
needed.
Whatever temperature you set will
be maintained 24 hours a day, until
you manually change it, or press RUNPROGRAM to cancel “Hold” and resume
the programmed schedule.
P330 Series
M27884
Auto Changeover (heat/cool)
Auto Changeover is a feature used in
climates where both air conditioning and
heating are used on the same day. When
the system is set to Auto, the thermostat
automatically selects heating or cooling
depending on the indoor temperature.
Press until screen
displays “Auto”
Note: The Auto system setting
may not appear, depending on
how your thermostat was installed.
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Heat and cool settings must be at least
3 degrees apart. The thermostat will
automatically adjust settings to maintain this
3-degree separation (called “deadband”).
The 3-degree separation between heating
and cooling set temperatures is fixed, and
cannot be changed.
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Operating Manual
M27885
Built-in compressor protection
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This feature helps prevent damage to the
compressor in your air conditioning or heat
pump system.
Damage can occur if the compressor is
restarted too soon after shutdown. This feature forces the compressor to wait for a few
minutes before restarting.
During the wait time, the display will flash the
Message flashes until safe restart
time has elapsed
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message Cool (or Heat if you have a heat
pump). When the safe wait time has elapsed,
the message stops flashing and the compressor turns on.
P330 Series
Early Recovery
Early Recovery eliminates guesswork when setting your schedule. It allows the thermostat to “learn” how long your furnace and air conditioner take to reach the temperature you want.
Just set your program schedule to the time you want the house to reach your desired
temperature. The thermostat then turns on the heating or cooling at just the right time
to reach your scheduled temperature at your scheduled time.
For example: Set the Period 1 time to 6 am and the temperature to 70°. The heat will
come on before 6 am, so the temperature is 70° by the time you wake at 6.
Note: When Early Recovery is in effect, the thermostat will display “Recovering”.
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Operating Manual
M28596
Battery Replacement
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Insert fresh AA
alkaline batteries.
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Batteries are optional (to provide backup
power) if your thermostat was wired to run on
AC power when installed.
Install fresh batteries immediately when
the warning begins flashing. The
warning flashes about two months before the
batteries are depleted.
Even if the warning does not appear, you
should replace batteries once a year, or
before leaving home for more than a month.
If batteries are inserted within two minutes,
the time and day will not have to be reset.
All other settings are permanently stored in
memory, and do not require battery power.
P330 Series
Troubleshooting
If you have difficulty with your thermostat, please try the following suggestions.
Display is blank • Checkcircuitbreakerandresetifnecessary.