Braeburn 2220NC - Manual (Page 7)

6
Attach Thermostat to Sub-Base 5
1. Line up the thermostat body with the sub-base.
2. Carefully push the thermostat body against the sub-base until it snaps
into place.
3. Insert quick reference card into slot on top of thermostat.
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.
NOTE: The reset button must be pressed after making any changes to
these switches.
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