IM 1234-1 • BACNET THERMOSTAT 24 www.DaikinApplied.com
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Procedure
Steps
Display
Enable the economizer
To set up the economizer do the following:
1. From the SYSTEM menu choose ECON ENABLE to
enable the economizer application.
2. From the SYSTEM menu choose MIN ECON DAMPER to
set the minimum position for the economizer damper.
3. From the SYSTEM menu choose ECON ENABLE TEM.
Enter the value that the outside air temperature must fall
below before the economizer damper can open.
4. From the SYSTEM menu choose MIN DAT. Enter the
minimum discharge air temperature that will be allowed
during cooling when the economizer is enabled.
Set the reversing valve polarity
From the SYSTEM menu choose REV VLV PLRTY. Select
one of the polarity settings.
•
Active Heating
– The O/B output terminal is active on a
call for heating.
•
Active Cooling
– The O/B output terminal is active on a
call for cooling.
Set up auxiliary heat (Optional feature)
From the SYSTEM menu choose AUX HEAT.
•
Comp Lockout
– The BACnet Thermostat will enable
auxiliary heat only when the compressors are locked out
because of low outside air temperature.
•
3rd Stage
– The BACnet Thermostat uses the auxiliary
heat as a third stage of heating.
•
None
– No auxiliary heat is enabled.
Set the lockout temperature for auxiliary
heat
From the SYSTEM menu choose AUX HT LOCKOUT to
set the minimum outside air temperature for auxiliary heat
lockout. Auxiliary heat will not operate above this temperature.
Set the compressor low temperature
lockout.
From the SYSTEM menu choose COMP LOCK TEMP to
set the minimum outside air temperature for compressor
operation. Compressors will not operate below this
temperature.
