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Thermostat Quick Reference - Pro 1 IAQ True Comfort T855 Installation Manual

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Getting to know your thermostat
1
8
2
Glow in the Dark Light Button
3
Fan Button
4
System Button
5
Menu Buttons Access Door
6
Temperature Setpoint Buttons
7
Menu Button
8
User Program Buttons
2
6
7
3
4
5
1
LCD
Indicates the
current room
Days of the
temperature.
week and time
Programmable
Time Period Icons:
This thermostat has
Program Menu Options:
4 programmable time
Shows different options
periods per day.
during programming.
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.
Hold is displayed when
thermostat program is
Displays the user
permanently overridden.
selectable setpoint
temperature.
+1 will appear in the
display when second
stage of heat or cool
is on.
+2 will appear in the
display when third stage
of heat is on.
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.
Low Battery Indicator:
Replace batteries when
this indicator is shown.
3

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