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Heat / Cool Changeover Setpoint
The OAT that will determine if heating or cooling
will have priority. When the OAT is above this
temperature cooling will have priority, When the
OAT is below this temperature heating will have
priority. Set this value to Null and the controller will
calculate this point automatically based on the current
supply air temperature setpoint.
Editable
Range: 45-90°F
Default: 65°F
OAT Reset
This point allows the use of the OAT reset. When
enabled the supply air setpoint will be reset based on
the outside air conditions When it is 40°F (Adj.) the
reset will control to the supply only heating setpoint,
as the OAT rises the supply setpoint will reset
upwards towards the supply air cooling setpoint at
80°F (Adj.).
21. Enable Reset
22. Disable Reset (Default)
Editable
Humidity Setpoints
Occ Space RH Setpt
Combined with the space relative humidity (RH)
deadband to determine the (occupied and
unoccupied) dehumidification mode. In the occupied
mode, dehumidification is True when the outside
dewpoint is greater than the outside dewpoint
setpoint or the space relative humidity is greater than
the space relative humidity setpoint.
Dehumidification is False when the outside dewpoint
is less than the outside dewpoint setpoint minus the
outside dewpoint deadband and the space relative
humidity is less than the space relative humidity
setpoint minus the space relative humidity deadband.
Notes: The outside dewpoint is calculated from the
outside relative humidity and outside temperature.
Unoccupied dehumidification can be determined
based on space relative humidity or space dewpoint
(selectable).
Editable
Range: 40-70%
Default: 55%
OA Dewpt Setpt
Combined with the outside dewpoint deadband to
determine the (occupied) dehumidification mode. In
the occupied mode, dehumidification is True when
the outside dewpoint is greater than the outside
dewpoint setpoint or the space relative humidity is
greater than the space relative humidity setpoint.
Dehumidification is False when the outside dewpoint
is less than the outside dewpoint setpoint minus the
outside dewpoint deadband and the space relative
humidity is less than the space relative humidity
setpoint minus the space relative humidity deadband.
Notes: The outside dewpoint is calculated from the
outside relative humidity and outside temperature.
Unoccupied dehumidification can be determined
based on space relative humidity or space dewpoint
(selectable) but does not use outside conditions.
Editable
Range: 40-100°F
Default: 55°F
Controls V2 IOM 32 May 2011
Part Number 474626