Braeburn 3300 - Manual (Page 5)

8
Installer Option Descriptions continued
9. This thermostat includes an automatic compressor protection feature to
avoid potential damage to the compressor from short cycling. This
thermostat automatically provides an adjustable delay after turning off
the compressor. This protection is also present in the first stage heat mode
of operation on single stage heat pump systems to protect the compressor.
10. During the COOL mode of normal operation the fan will stay on for 60
seconds after the cooling system has satisfied the set point temperature
and has turned off the compressor. This allows the system to provide
higher efficiency during cooling operation.The delay is selectable between
0, 30, 60 or 90 seconds.
11. The Recirculating Fan Mode provides more even temperature distribution
and improves indoor air quality by circulating air through the furnace filtra-
tion system more often. The Recirculating Fan can be locked “on”, so that
the only fan selections available to the user are CIRC and ON. By locking
the Recirculating Fan to CI
r
CON, the user will only have the option to run
the fan all the time (ON) or use the Recirculating Fan Feature (CIRC). When
locked on, the fan circulates at a fixed time of 12 minutes on, 24 minutes off.
In the CIRC mode, the fan can be set to run every 24, 40, 60 or 120 minutes
(see chart below). The Recirculating Fan feature is available in the COOL, OFF,
HEAT, or EMER mode. To set the fan run time, see page 12.
12. If a Braeburn ® indoor or outdoor remote sensor is connected during instal-
lation, the thermostat will automatically detect the type of sensor. When an
indoor sensor is detected, you may select between internal (sensI), external
(sensE), or averaging (sensA) of internal and external for temperature control.
When an outdoor sensor is automatically detected, the thermostat will remove
the choices for indoor sensing from the menu and enable outdoor measure-
ment. The outdoor sensor may be used to determine if balance points have
been exceeded, and for outdoor temperature display. For proper auto-detection,
you must use a Braeburn brand external sensor. Should the external sensor
become unwired, the thermostat will retain the settings, but the balance points,
temperature dependent humidity control, and outdoor temperature display
will be disabled until the external sensor is repaired. Test the operation of the
external sensor by pressing the
BACK and NEXT buttons at the same time.
4
Programming Installer Settings
cont.
Option Settings Temperature
Control
sens I (Internal Thermostat Sensor) At Thermostat
sens E (Remote Indoor Sensor) At Remote Sensor
sens A (Internal and Remote) Average between
Internal and Remote
Fan Cycle Fan Off Time Fan Run Time
Setting (minutes) (minutes)
24 24 12
40 40 12
60 60 12
120 120 12
7
4
Programming Installer Settings
cont.
Factory
Installer Options Default Options Comment
15 Compressor balc O balc O, Scrolls between NO (no lockout)
Balance Point balc 1O, and 10 to 50˚ F (-12 to 10˚ C) to
balc 5O set Compressor Balance Point.
Only available with multi-stage
heat pump and outdoor sensor
connected.
16 Auxiliary Balance bala O bala O, Scrolls between NO (no lockout)
Point bala 7O, and 70 to 40˚ F (21 to 4˚ C) to set
bala 4O Auxiliary Balance Point. Only available
with multi-stage heat pump and
outdoor sensor connected.
17 Heating Set Point hea 90 hea 90, Scrolls between 90 and 60˚ F
Upper Limit hea 60 (32 and 10˚ C).
18 Cooling Set Point cool 45 cool 45, Scrolls between 45 and 80˚ F
Lower Limit cool 80 (7 and 27˚ C).
Installer Option Descriptions
1. Selects preferred temperature scale of either ºF or ºC.
2. Selects Auto Changeover on or off. When off is selected, the AUTO icon
will not be displayed when selecting the system options with the system
switch. When Auto Changeover mode is enabled and selected, the system
automatically switches between heating and cooling when the room
temperature meets the programmed heating or cooling set points.
3. Selects single stage conventional (11C), 2 stage conventional (22C), single
stage heat pump (11HP), 2 stage heat pump (22HP), or 3 stage heat pump
(32HP). Any change made to the system type resets Installer Options 4
through 8 to their default values dependent on system selected.
4. Selects between 1st stage gas or electric heat Fan Control. This Installer
Option is not available with a heat pump system.
5. Selects aux-stage gas or electric heat Fan Control. This Installer Option is
only available with a 2 or 3 stage heat pump system.
6. For heat pump units with an electric auxiliary stage, both the first and
second stages of heating will run when a call for second stage heat is
made. For heat pump units with a fossil fuel auxiliary stage, the compressor
stage(s) will be locked out one minute after a second stage heat call, and
the second stage will only be used.
NOTE: Can be overridden by Auxiliary
Balance Point. See Installer Option number 16 in the chart above for details.
7. Select between turning the AC power interrupt warning off or on. During
a power loss, the thermostat will display an outage warning (-AC). All set
tings will be maintained until the outage period is over. This Installer Option
is only available when thermostat is installed as a hardwired unit.
8. This thermostat provides cold weather compressor protection by locking
out the compressor stage (1st stage) of heating for a period of time after a
power outage greater than 60 minutes. The lockout period is one hour less
than the outage time, up to a maximum of 12 hours. During that period of
time, the auxiliary heat stage will still be available to maintain the set point
temperature. The compressor lockout can be disabled by setting this option
to OFF (continued on page 8).