Occupancy Modes - McQuay MicroTech II Operation & Maintenance Manual

Table 9. Special Purpose UVC Unit Mode Priority
Emergency Override
Input
Normal
Pressurize
De-pressurize
Purge
Shutdown
Normal here indicated the UVC power-up condition.
De-energized here means that the contacts connected to this binary input are open.
Energized here means that the contacts connected to this binary input are closed.
These are network variables.
Table 10. Normal UVC Mode Priority
Application Override Input
Normal (Auto)
Heat
Cool
Night Purge
Off
Emergency Heat
Fan Only
Normal (Auto) is the normal UVC power-up state.
These are network variables.

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
Table 11. Occupancy Mode Priority
Occupancy
Override Input
Occupied
Unoccupied
Bypass
Standby
Null (default)
The tenant override switch (unit or wall sensor mounted) can be used here to force the UVC into the Bypass Mode.
Typical operation is defined in this row of the table.
These are network variables.
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Remote Shutdown
Binary Input
De-energized
Energy Hold Off
Energized Don't Care
Don't Care Don't Care
Don't Care Don't Care
Don't Care Don't Care
Don't Care Don't Care
Occupancy
Sensor Input
Don't Care
Don't Care
Occupied
Unoccupied
Null (default)
Don't Care
Occupied
Unoccupied
Null (default)
Energy Hold Energy Hold
Off Input Off Output
Normal Normal
Energy Hold Off
Energy Hold Off
Don't Care
Don't Care
Don't Care
Don't Care
Unit Mode Override Input
Normal (Auto)
Heat
Cool
Night Purge
Off
Emergency Heat
Fan Only
Don't Care
Don't Care
Don't Care
Don't Care
Don't Care
Don't Care
Networked Occupancy Sensor network variables, along with the
Unoccupied and Tenant Override binary inputs, are used to determine
the Effective Occupancy.
Unoccupied
Input Signal
Don't Care
Don't Care
Don't Care
Don't Care
Contacts Open (Occupied)
Contacts Closed (Unoccupied)
Don't Care
Don't Care
Don't Care
Contacts Open (Occupied)
Contacts Closed (Unoccupied)
Priority Result
Unit Mode
Output
See the Normal
UVC Mode Priority table
Off
Off
Off
Off
Off
Off
Priority Result
Unit Mode Output
Heat
Cool
Emergency Heat
Heat
Cool
Night Purge
Off
Emergency Heat
Fan Only
Heat
Cool
Night Purge
Off
Emergency Heat
Fan Only
Priority Result
Effective
Occupancy
Output
Occupied
Unoccupied
Occupied
Bypass
Occupied
Bypass
Standby
Occupied
Unoccupied
Occupied
Unoccupied
Actual UVC
Action
Off
Off
Pressurize
De-pressurize
Purge
Off
OM 750