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required. Heating and cooling set temperatures may not
be adjusted until heating or cooling is necessary, or one
of these modes is manually selected by pressing and
releasing both arrow keys at the same time.
You can force heating or cooling to be the active mode
●
by pressing and releasing both arrow keys at the same
time until the desired mode is indicated. After, the unit
will then switch modes as necessary to control tempera-
ture.
4.1.4.4 HEATING
Press the MODE button repeatedly until the word HEAT
●
is shown along the top of the display. The unit is in HEAT
mode ready to control your heating system.
Press temperature UP or DOWN keys until your
●
desired temperature is displayed in the HEAT SET area of
the display.
While heating is active, a flame icon will flash above
●
the HEAT SET temperature. If a second stage of heat is
called for the flashing rate increases.
4.1.4.5 COOLING
Press the MODE button repeatedly until the word
●
COOL is shown along the top of the display. The unit is in
Cool mode ready to control your air conditioner.
Press temperature UP or DOWN keys until your
●
desired temperature is displayed in the COOL SET area of
the display.
While cooling is active, a snowflake icon will flash
●
above the COOL SET temperature. If a second stage of
heat is called for the flashing rate increases.
4.1.4.6 OFF
Press the MODE button repeatedly until the display
●
indicates that the unit is in OFF.
Heating and cooling will be disabled.
●
Periods programmed to maintain a minimum fan run
●
time will continue do so.
4.1.5 DISPLAY ILLUMINATION
Press the light bulb button to illuminate the display.
●
Pressing other buttons will keep the display illuminated
until no button has been pressed for approximately 20
seconds.
4.2. USER SETUP MENU
User selectable options are available from the User Setup
Menu. To access the User Setup Menu press the Setup
button. All settings, their choices and default values are
given in the USER SETUP MENU:.
4.2.1 ACCESS AND NAVIGATE USER SETUP MENU
To scroll through the User Setup Menu one item at a
●
time, momentarily press Setup Button.
Selections can be changed by pressing the UP/DOWN
●
button.
Moving from one menu item to the next and accept-
●
ance of changes is done by pressing the NEXT button.
All changes become effective when the unit exits the
●
User Setup mode.
The User Setup mode will be exited when the Setup
●
button is pressed again, or if no other keys are pressed
for 20 seconds.
4.2.2 KEYBOARD LOCK
Two types of Keyboard locks allow owners/operators to
prevent unauthorized changes to the thermostats set-
tings. The two types of locks are full and partial. When
the thermostat is locked, a three digit code is set. That
code must be reentered before locked settings can be
changed without performing a software reset off the unit.
Entering a code toggles the selected lock on or off. While
a lock is effective, a padlock is shown near the lower
right corner of the screen.
4.2.2.1 PARTIAL KEYBOARD LOCK
A partial lock allows other users to adjust only the tem-
perature set point to values at or between the Maximum
Heat Setting and Minimum Cool Settings.
4.2.2.2 FULL KEYBOARD LOCK
A full lock disables all the keys except the Setup button
on the front, and the S/W Reset button on the rear.
Pressing the S/W Reset button will rewrite all settings
and programs to their default values.
4.2.2.3 SETTING THE LOCK
1. Press SETUP.
2. Select Full or Partial.
3. Press NEXT.
4. Set code one digit at a time. Press NEXT after each
digit.
5. When NEXT is pressed after the third digit has been
entered, the unit will be appropriately locked.
4.2.2.4 CLEARING A LOCK
1. Press SETUP.
2. Enter code one digit at a time. Press NEXT after each
digit.
3. When NEXT is pressed after the third digit has been
entered, the unit will be unlocked if the correct code was
entered.
If you have forgotten the code, your thermostat may be
unlocked by pressing the Software Reset button on the
rear of the unit's circuit board. This will restore the unit to
its default settings and it will likely need to be reconfig-
ured to control your HVAC system.
4.2.2.5 CHANGING THE LOCK CODE
1. Press SETUP.
2. Select NEW CODE.
3. Press NEXT.
4. Enter old code one digit at a time. Press NEXT after
each digit.
5. Enter new code one digit at a time. Press NEXT after
each digit.
6. When NEXT is pressed after the new third digit has
been entered, the new code will be effective.
4.2.3 BEEP
This option allows the audible feedback tone (Beep) to be
enabled or disabled.
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