Trane Tracer AH540, Руководство по диагностике для владельца установки

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CNT-SVX05A-EN
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Sequence of operation
Building automation systems normally communicate an occupancy request using
the occupancy—schedule input. The Tracer AH.540 controller accepts
communicated occupancy schedule as a network variable input
nviOccSchedule .
Occupancy—sensor
Some occupancy sensors may be equipped with the ability to communicate
an occupancy mode to the controller. In such devices, network variable input
nviOccSensor is used to communicate occupancy to the controller. Trane systems
and zone sensors do not currently send this variable. The hardwired occupancy
input of this controller is handled as if it is a communicated occupancy sensor input.
When both a hardwired input and a communicated input exist, the communicated
input is used.
Table 22 — Effect of occupancy commands on the controller
Note 1: Occupied bypass is initiated by either a communicated request or by pressing the local zone sensor On button.
The effective occupancy is occupied bypass.
Note 2: The occupancy sensor can be either a local input or a communicated input. If a valid value for the network input
is present, it has precedence over the local input.
Note 3: If the occupancy sensor communicated input is invalid or not present, and no local input exists, the controller's
mode is occupied.
Note 4: If the occupied bypass timer is not equal to zero, the effective occupancy will be occupied bypass.
On and Cancel buttons on the zone sensor
Some Trane zone sensor modules include timed override On and Cancel buttons. Use
the timed override On and Cancel buttons to place the controller in override (occupied
bypass mode) and to cancel the override request.
The controller always recognizes the timed override On button. If someone presses
the zone sensor's timed override On button, the controller initializes the bypass timer
to 120 minutes (adjustable).
If the controller is unoccupied when someone presses the On button, the controller
immediately changes to occupied bypass mode and remains in the mode until either
the timer expires or someone presses the zone sensor's timed override Cancel
button. If the On button is pressed during occupied bypass mode before the timer
expires, the controller initializes the bypass timer to 120 minutes.
If the controller is in any mode other than unoccupied when someone presses the On
button, the controller initializes the bypass time to 120 minutes. As time expires, the
bypass timer continues to decrement. During this time, if the controller changes from
Occupancy—manual
command Occupancy—schedule Occupancy—sensor
(Note 2)
Controller's Effective
Occupancy
Occupied Any state Occupied (Note 3) Occupied
Unoccupied Occupied
Unoccupied Any state Any state Unoccupied (Note 4)
Occupied bypass Occupied Any state Occupied
(Note 1) Unoccupied Any state Occupied bypass
Occupied standby Any state Occupied bypass
(Note 1)
Invalid or not present Occupied (Note 3) Occupied
Unoccupied Occupied bypass
(Note 1)
Occupied standby Any state Any state Occupied standby
(Note 4)
Invalid or not present Occupied Occupied (Note 3) Occupied
Unoccupied Occupied standby
(Note 4)
Unoccupied Any state Unoccupied (Note 4)
Occupied standby Any state Occupied standby
(Note 4)
Invalid or not present Occupied (Note 3) Occupied
Unoccupied Unoccupied (Note 4)