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OCCUPANCY
ECONOMIZER
The Occupancy menu allows the user to adjust occupancy control parameters which
includes occupancy control mode and schedule.
OCCUPANCY CONTROL
This screen displays the current mode of operation for occupancy control. Status of
the other mode option can also be found on this screen. This screen allows the user
to select the source of determining occupancy. The factory default is BMS control.
BMS: BMS control (Reference Points List).
Note:
Under BMS control method, occupied or unoccupied mode setting is available.by
manually.
Digital Input: Typically used with a remote time clock, motion sensor or switch.
UNOCCUPIED START ENABLE MODES
This screen only appears if unit is provided with unoccupied recirculation.
This screen allows the user to enable/disable modes of operation when in
unoccupied recirculation control.
The Economizer menu allows the user to enable the Economizer mode and adjust
control parameters which includes economizer control mode and set point
ECONOMIZER CONTROL VARIABLES
The user can select the economizer control method from the following options:
Outside Dry Bulb – Economizing is allowed when the outside dry bulb is less than
the economizer temperature enable set point.
Outside Enthalpy - Economizing is allowed when outside enthalpy is less than the
economizer enthalpy set point.
Comparative Dry Bulb - Economizing is allowed when outside temperature is less
than the space or return temperature.
Comparative Enthalpy - Economizing is allowed when outside enthalpy is less than
the space or return enthalpy.
If economizer Outside dry bulb = 65°F, Hysteresis = 2°F
Economizer operation is enabled below 64°F (65°F - 2°F x 1/2) and disabled above
66°F (65°F + 2°F x 1/2).
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