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ASSA ABLOY Hospitality
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1.6 Basic EMS logic
The thermostat along with the motion sensor, lock and/or RF door switches, monitors
the occupancy state of the room and operates based on this information. When the
room is occupied, the guest is given control and can set the desired temperature.
The thermostat will then heat or cool the room as necessary to meet the guest setting.
When the room is not occupied, the thermostat will operate based on the configurable
parameters of the system. The three occupancy states are
occupied
,
unoccupied
and
unsold
. The following events are considered as in-room events:
motion
deadbolt engaged
thermostat key pressed
1.6.1 Room occupied
When the room is occupied, control of the HVAC system is given to the guest.
The guest sets the desired
temperature and the HVAC system will control the room
based on this setting. The Orion thermostat will enter the occupied state only when
the door is closed and in-room events are detected (motion, deadbolt engaged,
thermostat key pressed). At this point, the guest has full control of the room
temperature.
Note:
'Occupied limits' may be used to restrict the guest setting limits.
1.6.2 Room unoccupied
When the room is not occupied, the energy management logic takes control of the
room based on the configurable parameters of the system. The system will set back
the temperature to the unoccupied setting. The system has both an
upper setback
and
a
lower setback
. The unoccupied setbacks may be
static
or
dynamic
; for unsold rooms,
only a static setback is used. See section
Terminology
for more information about static
and dynamic setback.
The thermostat will enter the unoccupied state upon the door opening or closing. If no
in-room event such as motion is detected, the thermostat will remain in the unoccupied
mode. The thermostat will continue to operate at the guest setting for the duration of
the configurable 'Room not occupied' timer, at which point it maintains the room
temperature based on the unoccupied setback temperatures.
