Braeburn 1220NC - Manual (Page 7)

6
4 System Testing
Warning
Read Before Testing
• Do not short (or jumper) across terminals on the gas valve or at the
heating or cooling system control board to test the thermostat installa-
tion. This could damage the thermostat and void the warranty.
• Do not select the COOL mode of operation if the outside temperature
is below 50º F (10º C). This could possibly damage the controlled cool-
ing system and may cause personal injury.
• This thermostat includes an automatic compressor protection feature to
avoid potential damage to the compressor from short cycling. When
testing the system, make sure to take this delay into account.
NOTE: The compressor delay can be bypassed by pressing the reset button
on the front of the thermostat. All user settings will be returned to factory
default.
1 Move the SYSTEM switch to HEAT mode.
2 Press to raise the set temperature a minimum of 3 degrees above
the current room temperature. The system should start within a few
seconds. With a gas heating system, the fan may not start right away.
3 Move the
SYSTEM switch to the OFF mode. Allow the heating system to
fully shut down.
4 Move the
SYSTEM switch to the COOL mode.
5 Press to lower the set temperature a minimum of 3 degrees below
the current room temperature. The system should start within a few
seconds (unless compressor short cycle protection is active – See
note above).
6 Move the
SYSTEM switch to the OFF mode. Allow the cooling system to
fully shut down.
7 Move the
FAN switch to the ON mode. The system fan should start
within a few seconds.
8 Move the
FAN switch to the AUTO mode. Allow the system fan to
turn off.
5 Setting User Options
Advanced User Options
User options allow you to customize some of your thermostats features.
Most users will not need to make any changes to the settings in this section.
To access the User Options menu, hold down both the and buttons
for approximately 3 seconds until the screen changes and displays
the first User Option.
Press the or button to change the setting for the displayed User Option.
After you have made your desired setting, press and together to
advance to the next User Option.
The thermostat will return to normal mode after your last user option is
made or after no keys have been pressed for 15 seconds.