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OM 750
Priority Result
Application Override Input
햳
Unit Mode Override Input
햳
Unit Mode Output
햳
Heat
Normal (Auto)
햲
Cool
Emergency Heat
Heat
Heat
Normal (Auto)
햲
Cool
Cool
Night Purge
Night Purge
Off
Off
Emergency Heat
Emergency Heat
Fan Only
Fan Only
Heat
Don’t Care
Heat
Cool
Don’t Care
Cool
Night Purge
Don’t Care
Night Purge
Off
Don’t Care
Off
Emergency Heat
Don’t Care
Emergency Heat
Fan Only
Don’t Care
Fan Only
햲
Normal (Auto) is the normal UVC power-up state.
햳
These are network variables.
Table 10. Normal UVC Mode Priority
Occupancy Modes
The UVC is provided with four occupancy modes: Occupied, Standby,
Unoccupied, and Bypass. The occupancy mode effects which heating
and cooling temperature setpoints will be used, effects IAF operation,
and effects OAD operation. The Manual Adjust Occupancy and
Priority Result
Occupancy
Occupancy
Unoccupied
Effective
Override Input
햴
Sensor Input
햴
Input Signal
Occupancy
Output
햴
Occupied
Don’t Care
Don’t Care
Occupied
Unoccupied
Don’t Care
Don’t Care
Unoccupied
Occupied
Don’t Care
Occupied
Unoccupied
Don’t Care
Bypass
Bypass
Contacts Open (Occupied)
Occupied
Null (default)
Contacts Closed (Unoccupied)
Bypass
Standby
Don’t Care
Don’t Care
Standby
Occupied
Don’t Care
Occupied
Unoccupied
Don’t Care
Unoccupied
햲
Null (default)
햳
Contacts Open (Occupied)
Occupied
Null (default)
Contacts Closed (Unoccupied)
Unoccupied
햲
Table 11. Occupancy Mode Priority
Networked Occupancy Sensor network variables, along with the
Unoccupied and Tenant Override binary inputs, are used to determine
the Effective Occupancy.
Priority Result
Emergency Override
Remote Shutdown
Energy Hold
Energy Hold
Unit Mode
Actual UVC
Input
햵
Binary Input
Off Input
햵
Off Output
햵
Output
햵
Action
Normal
Normal
See the Normal
Normal
De-energized
UVC Mode Priority table
Energy Hold Off
Energy Hold Off
Off
Off
Energized
Don’t Care
Energy Hold Off
Off
Off
Pressurize
Don’t Care
Don’t Care
Don’t Care
Off
Pressurize
De-pressurize
Don’t Care
Don’t Care
Don’t Care
Off
De-pressurize
Purge
Don’t Care
Don’t Care
Don’t Care
Off
Purge
Shutdown
Don’t Care
Don’t Care
Don’t Care
Off
Off
햲
Normal here indicated the UVC power-up condition.
햳
De-energized here means that the contacts connected to this binary input are open.
햴
Energized here means that the contacts connected to this binary input are closed.
햵
These are network variables.
Table 9. Special Purpose UVC Unit Mode Priority
햲
The tenant override switch (unit or wall sensor mounted) can be used here to force the UVC into the Bypass Mode.
햳
Typical operation is defined in this row of the table.
햴
These are network variables.