Pro 1 IAQ T855 User manual

3
Getting to know your thermostat
2
Fan Button
3
System Button
4
Menu Buttons Access Door
5
Temperature Setpoint Buttons
6
Menu Button
7
User Program Buttons
8
Glow in the Dark Light Button
6
7
8
1
2
3 4
5
Important:
The low battery indicator is displayed
when the AA battery power is low. If the
user fails to replace the battery within
21 days, the thermostat display will only
show the low battery indicator as a final
warning before the thermostat
becomes inoperable. The batteries are
located on the back of the thermostat.
LCD
1Hold is displayed when
thermostat program is
permanently overridden.
+1 will appear in the
display when second
stage of heat or cool
is on. +2 will appear
for third stage of heat.
System operation
indicators: The COOL,
HEAT or FAN icon will
display when the COOL,
HEAT or FAN is on.
NOTE: The compressor
delay feature is active if
these icons are flashing.
The compressor will not
turn on until the 5 minute
delay has elapsed.
Days of the
week and time
Low Battery Indicator:
Replace batteries when
this indicator is shown.
Program Menu Options:
Shows different options
during programming.
Indicates the
current room
temperature.
Programmable
Time Period Icons:
This thermostat has
4 programmable time
periods per day.
Displays the user
selectable setpoint
temperature.

UP

AUXILLARY

Gterminal.

This feature allows the thermostat
tokeep multiple stages of heat or
coolenergized until setpoint is
satisfied.
This feature allows a delay to
occur when a second and third
stage is needed. This allows the
previous stage extra time to
satisfy setpoint.

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Sunday time