White Rodgers 1F97-71 - Manual (Page 13)

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AUTOMATIC CHANGEOVER to determine
proper positions of Group B option switches
#1 and #2.
EMR Switch Positions
Switch #1 (see AUTOMATIC CHANGEOVER)
Switch #2 (see AUTOMATIC CHANGEOVER)
Switch #3 OFF
• AUTOMATIC CHANGEOVER — If you have
a heating/cooling system, you can set the
thermostat to automatically switch the system
from heating to cooling as needed. (If you
have a heating only system, Group B option
switch #1 should be OFF and option switch #2
should be ON.) To enable automatic
changeover, you must move Group B option
switch #1 to the ON position and switch #2 to
the OFF position. Turn off 24v AC power to the
thermostat. Then remove the thermostat body
from the wall. Check the position of Group B
option switches #1 and #2 (the first two switches
on the left). If they are in the correct positions,
simply put the thermostat back on the wall and
restore 24v AC power. If the switches are not
correctly positioned, remove the battery, then
use a pencil or small screwdriver to move the
switches to the correct positions (see figure on
next page). Leave the battery out of the
thermostat for at least two minutes, to allow
the thermostat to reset itself. Replace the
battery, reprogram the thermostat, if neces-
sary, put the thermostat back on the wall, and
restore 24v AC power. To set the thermostat
for automatic changeover after programming,
press SYSTEM
SWITCH
to set the thermostat to AUTO
ON
1 2 3
Group B
Option
Switches