NOTES - Installer Settings
1 Only available if a 2 or 3 stage system type was selected in option 3.
2 Only available if a Conventional system was selected in option 3.
3 Only available if a 2 or 3 stage Heat Pump system was selected in option 3.
4 Only available if a Heat Pump system was selected in option 3.
5 Only available if the 24 Volt AC common wire is connected to the C terminal.
6 Not available if a Heat Only Hydronic system is selected in option 3.
7 Only available if a Braeburn® indoor remote sensor was connected.
8 Only available if auto changeover was enabled in option 2.
9 Only available if a Braeburn outdoor sensor was connected.
Detailed Explanation of Installer Settings (also see NOTES above):
1 Temperature Scale – Selects a temperature scale of either °F or °C.
2 Auto Changeover – Selects auto changeover on or off. When auto changeover mode is enabled and
selected, the system automatically switches between heating and cooling modes. There is a 5 minute
delay when switching from heating to cooling or cooling to heating in auto changeover mode.
NOTE: Also see “Auto Changeover Dead Band” in option 18.
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 20.
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.
Installer Manual 10
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