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the battery, then use a pencil or small screw-
driver to move the switch to the ON position
(see figure at right). Leave the battery out of
the thermostat for at least two minutes, to
allow the thermostat to reset itself. DO NOT
MOVE OPTION SWITCHES #1 OR #2, as
this may affect thermostat operation. [Op-
tion switch #3 enables/disables keypad lock-
out (see TOTAL KEYPAD LOCKOUT)].
Replace the battery, reprogram the thermo-
stat, if necessary, put the thermostat back
on the wall, and restore 24v AC power. To
set the thermostat for automatic changeover
after programming, press
thermostat to AUTO (the setpoint tempera-
ture display is blank in the AUTO mode).
The system will now automatically switch
between heating and cooling, depending on
the actual room temperature.
SYSTEM
to set the
SWITCH
ON
1
2
Switch #1 set at installation (DO NOT CHANGE)
Switch #2 set at installation (DO NOT CHANGE)
Switch #3 (see TOTAL KEYPAD LOCKOUT)
Switch #4 ON
In the AUTO mode, the thermostat will not
allow the temperature separation between
the highest heat setting and the lowest cool
setting to be less than 1 F. For example, if
the highest heat setting is 75 F, the lowest
cool setting cannot be below 77 F (see
diagram below).
79
COOLING TEMPERATURES
78
77
76
DEAD BAND 1°F
75
74
HEATING TEMPERATURES
73
3
4
13
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