Filter
Top Products
INSTALLER CONFIGURATION
BEFORE TURNING POWER ON, please
read the following instructions. Before
operating the system, you must configure
the thermostat to operate properly with
your equipment.
The thermostat, as it comes from the factory,
is configured to operate a standard multi-
stage electric forced hot air system with a
single stage air conditioning compressor
and fan. In this configuration, the thermostat
will turn on the fan immediately on a call for
heat. If you are unsure whether your system
requires the thermostat to control the fan,
contact your furnace/air conditioning system
manufacturer or a qualified heating/air
conditioning service person.
Your new thermostat has an Installer table,
which allows you to customize the thermostat
to meet your requirements.
(The thermostat also has a User menu,
Keypad Lockout menu and a Service
menu; these menus are explained further
in the Operating Instructions.)
The menu settings can be changed at any time
to meet system or personal requirements.
ENTERING THE CONFIGURATION
MENUS
After properly wiring the thermostat, turn on
power to the system. Momentarily press
PROGRAM
RUN
to make certain the
thermostat is in the run program mode, then
press TIME
FWD
and TIME
BACK
at the
same time to enter the User Configuration
menu. When the display changes to the first
item in the configuration menu, release the
buttons. Then press and hold SET
TIME
and
SET
DAY
for approximately 3 seconds to
enter the Installer table. The display will
change to show the first item on the Installer
table (multi-stage/heat pump selection). Use
the following text, along with the Installer
table, to guide you through the selections.
Once in the table, you set each item to the
proper selection using
or , then
press TIME
FWD
to change the display to
the next item or TIME
BACK
to return to the
previous item.
To exit the table at any time, press PRO-
GRAM
RUN
.
MULTI-STAGE/HEAT PUMP MODE.
(Installer table step 1.) Use this item to select
the system type (multi-stage or heat pump).
IF YOU HAVE A HEAT PUMP SYSTEM,
you must select HEAT PUMP here. This
sets up proper default values for most heat
pump systems. This selection also makes
available some additional menu items that
apply only to heat pump systems.
HEAT PUMP COMPRESSOR
CONFIGURATION.
(Installer table step 2; this item is displayed
only when heat pump was selected in step 1.)
Use this item to select the number of heat
pump compressors.
ELECTRIC HEAT FAN
CONFIGURATION.
(Installer table step 3.) This item determines
whether fan control will be through the
thermostat or through the heating system. If
you have an electric heat or other system that
REQUIRES the thermostat to control the fan,
set this item ON. This allows the thermostat
to energize the fan immediately on a call for
heat. If you are unsure if the system requires
the thermostat to control the fan, contact the
equipment manufacturer or a qualified
heating and air conditioning service person.
If your system controls fan operation (as
with most fossil fuel systems), set this item
to OFF. Note that with heat pump systems,
the fan always cycles with the compressor.
SET CYCLE HEAT, COOL, AUX
(ANTICIPATION).
(Installer table steps 4 through 6; step 6 is for
heat pump only). These items allow the cycle
times in heating, cooling and auxiliary (heat
pump systems only) to be increased or
decreased. The factory set values can be
adjusted higher for longer cycles or lower for
shorter cycles.
NOTE: Some manufacturers still instruct you
to set the anticipator to the current draw of
the equipment. That instruction applies only
to mercury bulb or mechanical thermostats; it
does not apply to this digital thermostat. As
configured at the factory, this thermostat will
maintain an accurate temperature. No further
adjustment is necessary, although you can
use these items to customize the performance
of the thermostat to your requirements.
The adjustment range for HEATING is from
1 to 40 (9 to 40 for heat pump). The factory
preset is 5 (13 for heat pump). The adjust-
ment range for COOLING is from 9 to 40.
The factory preset is 12 (13 for heat pump).
The cooling will not go below 9 because
compressors require a longer cycle. The
adjustment range for AUXILIARY (heat
pump only) is from 1 to 40. The factory
preset is 6.
The chart on page 7 shows how this
adjustment range affects thermostat perfor-
mance.
PROGRAMMABLE COOL FAN-OFF
AND FAN-ON DELAY.
(Installer table steps 7 and 8.) These items
allow a selection of 0 to 127 seconds of fan-
off delay after the thermostat has satisfied the
call for cool, or a fan-on delay of 1 to 30
seconds on a call for cool (or heat pump
compressor activation).
The fan-off delay allows the fan to continue
running after the compressor has shut off.
This distributes the cool air that would
otherwise stay trapped in the air conditioning
coils through the ducts. Ideally the timing
would be set so the fan shuts off just as the
cool air is exhausted. If this timing is set too
long the fan may begin blowing warm air
before it shuts off. Shortening the fan-off
delay will prevent this.
A short delay to allow the A-coil to cool
off (or warm up in heat pump) before the
fan turns on may be preferred. This also
allows the compressor and the fan to come
on at slightly different times, which allows
full power to the compressor on start up.
Recommended setting for fan-on delay is
10 seconds or less.
PROGRAMMABLE HEAT FAN-
OFF DELAY.
(Installer table step 9.) This item allows a
selection of 0 to 127 seconds of fan-off delay
after the thermostat has satisfied the call for
heat if ELECT HEAT FAN (Step 3) is
selected ON.
The fan-off delay allows the fan to continue
running after the burner, heating element,
etc. has shut off. This distributes the heat that
would otherwise stay trapped in the ducts.
Ideally the timing would be set so the fan
shuts off just as the warm air is exhausted. If
this timing is set too long the fan may begin
blowing cool air before it shuts off. Shorten-
ing the fan-off delay will prevent this.
PUMP (FOSSIL FUEL KIT ALTER-
NATIVE STEPS 10 - 13).
(Installer table step 10; heat pump only) This
item controls heat pump compressor
operation with a fossil fuel auxiliary. This
item may eliminate the need for a separate
fossil fuel kit, although we recommend that
you consult the heat pump system manufac-
turer before using this feature instead of a
kit. This item will allow the thermostat to
turn the heat pump compressor off if the
auxiliary is on for more than one minute,
to prevent compressor head pressure from
getting too high. To use this feature instead
of a kit, select PUMP OFF.
5