Braeburn 3220 Installer Guide User Manual
Page 11
3 System Type – Selects the
system type for your installation.
NOTE: Changes made to this option will reset
options 4 through 11 back to their default values dependant on the system type.
4 1st Stage Differential – Selects a 1st stage temperature differential.
5 2nd Stage Differential
[note 1]
– Selects a 2nd stage temperature differential.
6 3rd Stage Differential
[note 1]
– Selects a 3rd stage temperature differential.
7 1st Stage Fan Control
[note 2]
– Selects a 1st stage fan control of either gas or electric heat.
8 Emergency Heat Fan Control
[note 3]
– Selects emergency heat fan control of either gas or electric heat.
9 Reversing Valve
[note 4]
– Selects the output state of the O/B terminal. Select O for this terminal to be
active in the cool mode or select B for this terminal to be active in the heat mode.
10 Auxiliary Fossil Fuel Heat Pump Control
[note 3]
– When set to electric (AE AUX), both the compressor
(1st stage) and auxiliary stage(s) will run when a call for auxiliary heat is made. When set to gas (AG AUX),
the compressor stage(s) will be locked out one minute after a call for auxiliary heat.
NOTE: This option can
be overridden if setting an auxiliary heat balance point in Option 19.
11 Compressor Power Outage Protection
[notes 3, 5]
– Selects power outage protection on or off. When
enabled, this thermostat will provide cold weather compressor protection by locking out the compressor
stage(s) of heating for a period of time after a power outage greater than 60 minutes.
12 AC Power Interrupt Warning
[note 5]
– When enabled, the thermostat will display an outage warning
when AC power to the thermostat is lost.
13 Short Cycle Protection
[note 6]
– Selects the number of minutes the cooling compressor will be locked
out after turning off. This short cycle protection is also active in the heat mode if a heat pump system was
selected in Option 3.
14 Residual Cooling Fan Delay
[note 6]
– Selects a delay for the system fan after the cooling compressor
has turned off. This delay will help remove the remaining cool air out of the ductwork providing additional
efficiency.
15 Indoor Remote Sensor Control
[note 7]
– If a Braeburn
®
indoor remote sensor is connected during
installation, the thermostat will automatically detect the sensor. When an indoor sensor is detected, you may
select between thermostat only (I SENS), remote sensor only (E SENS) or combining the thermostat and the
remote sensor (A SENS).
NOTE: This option does not apply to a Braeburn outdoor sensor. When an outdoor
sensor is connected the thermostat automatically recognizes it and no further configuration is necessary.
16 Lockout Security Level – Selects the level of keypad lockout when the thermostat is locked. Level 2 locks
the entire thermostat (including the front reset button). Level 1 locks everything except the SpeedBar
®
allowing for up and down temperature adjustment.
NOTE: The lock code is set in the User Settings mode
(see User Manual).
17 Auto Changeover Dead Band
[note 8]
– When auto changeover mode is enabled in option 2 and
selected, the system automatically switches between heating and cooling when the room temperature
meets the normal criteria for either a heating or cooling call. There is a forced separation (dead band)
between the heating and cooling set points so that the systems do not work against each other. This
option selects the amount of this dead band in degrees with the default being 3° F.
18 Compressor Balance Point
[notes 3, 9]
– Locks out the use of the compressor heat stage when the
outside air temperature is less than the selected setting of 15° F to 50° F (-9° C to 10° C).
19 Auxiliary Heat Balance Point
[notes 3, 9]
– Locks out the use of the auxiliary heat stage when the
outside air temperature exceeds the selected setting of 70° F to 40° F (21° C to 4° C).
NOTE: This balance
point overrides the fossil fuel compressor lockout in option 10. If this option is set to gas and the outdoor
temperature is over the auxiliary balance point, the compressor will remain on during a call for auxiliary heat.
11 Installer Guide