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board. For reference, there are a table of settings
and jumper positions printed there as well. They
are described here from J3, the rightmost
jumper, to J7, the leftmost jumper.
8.1 MINIMUM RUN TIME – J3
• The position of J3 sets the minimum length of
time that the thermostat must remain with
HEAT
or
COOL
either on or off before it will
automatically switch to the alternate On or Off
state. This feature prevents short cycling, and
provides compressor protection for cooling units.
Choices are 2 or 5 minutes. Default position as
shipped is 5 minutes.
8.2 CLOCK FORMAT – J4
• The time shown on the thermostat’s clock may
be display in 12 or 24-hour format. Set this
option to your preference. Default position as
shipped is 12-hour format.
8.3 TEMPERATURE DISPLAY FORMAT (F/C
DISPLAY) – J5
• Temperature may be displayed in Fahrenheit or
Celsius with this option. Default position as
shipped is F.
8.4 SMART RECOVERY – J6
Smart Recovery allows your HVAC system to
attempt to recover from a setback period and
reach your desired comfort temperature by the
beginning of your programmed comfort period.
This jumper allows you to choose Smart
Recovery to be On or Off. Default position as
shipped is Off.
• An initial Smart Recovery will start _ hour
before the programmed comfort temperature.
• Maximum Smart Recovery time is one hour.
• If enabled, Smart Recovery will initiate if:
• Recovery is valid, from an evening setback to
morning comfort or day setback to evening
comfort period.
• In Heat mode, the set temperature of the
comfort period must be higher than the setback
period.
• In Cool mode, the set temperature of the
comfort period must be lower than the setback
period.
8.5 FAN OVERRUN TIME – J7
• When this feature is enabled, Delay ON time
between the 1st stage of the compressor and fan
is 5 seconds and Delay OFF between the 1st
stage of compressor and fan is 1 minute.
• When this feature is disabled, there is no delay
time between 1st stage of the compressor and
the fan. Default position as shipped is Disabled.
8.6 REPOSITIONING JUMPERS
See the diagram on Page 16 to determine the
jumper position corresponding to the option you
desire. The table is also printed on the circuit
board. If necessary, change the jumper position
by pulling it straight off the pins it covers.
Replace the jumper over one pin for OPEN, or
both pins for CLOSED. When all changes have
been made, press the
Hardware Reset Button
.
See HARDWARE RESET.
These jumpers are located inside the thermostat
on the rear of its circuit board. To access them,
remove the unit from the wall by pressing up on
the thumb latch at the bottom of thermostat, and
swinging the body up and away to separate
them.
To change a setting, the jumper must be
repositioned and a Hardware Reset must be
performed. See HARDWARE RESET.
9. BATTERIES/MAINTENANCE
• Depending on your installation, your unit may
require batteries to control your HVAC system.
Replace your thermostat’s batteries at least once
a year or when the battery symbol appears in the
display.