User`s manual

Security Lockout to Protect the Settings
The buttons on the front of the thermostat can be locked with a password.
To create a password:
1. Press the and buttons at the same time and hold them in
for 5 seconds.
You will be asked for a 2 digit password.
2. The digits are set using the and buttons to progress
through 00 to 99.
move to the next digit. Press to move back.
3. The password is saved after 10 seconds or by pressing and
at the same time.
All of the front buttons are now locked out until the password is entered.
Pressing any button will cause to flash.
To unlock the buttons:
1. Push and hold the and buttons for 5 seconds until the
request for password is displayed.
2. Enter the digits for the password by pressing or to
progress through the numbers to the password.
If the wrong password is entered the display will flash NO for 5
seconds then return to normal.
3. Press and when the correct password is displayed.
The buttons will be unlocked.
Once the security has been disabled, a password needs to be re-created
to protect the settings.
Two Stage Systems
A 2nd stage is a second or additional system that will provide extra
heating or cooling. When a 2nd stage is operating the display will show
the number 2 by the heat/cool icons.
A programmable temperature differential (default value is 2.0 F Degrees or
1.0 C Degree) and time delay (default value 20 minutes) control the 2nd
stage cycle.
Operation of the 2nd stage begins when:
• The room temperature changes from the setpoint by the sum of the
1st and 2nd stage differential settings.
• The first stage has been on for the specified delay time, but the
heating/cooling demand has not yet been met.
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