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Installation
Table 32. VOM (continued)
VOM Input
Output
Mode E
Supply fan
(Purge with
Outdoor air
Duct Static
damper
Pressure
Control)
Relief fan /
Relief damper
Relief fan /
Relief damper
VAV Box Relay
Refer to the appropriate Programming, Troubleshooting
Guide (PTG latest edition) for programming instructions.
Emergency Stop Switch
A normally closed (N.C.) switch wired to the customer
connection (1KF11) and 1XD24 may be used during
60
Operation
Heat Cool
Mode Status
On/Duct Static
Fan Only
Pressure
Control
Open
On/Open
On/Open
Energized
emergency situations to shut down all unit operations.
When opened, an immediate shutdown occurs. An
emergency stop diagnostic is entered into the user
interface. The switch must be rated for 12 ma @ 24 VDC
minimum.
Occupied/Unoccupied Contacts
This binary input provides the Occupied/Unoccupied status
information of the building to the Symbio 800. It can be
initiated by a time clock, or a Building Automation System
control output. The relay's contacts must be rated for 12
ma @ 24 VDC minimum.
Wall or Duct Mount Humidity Sensor
(BAYSENS036* or BAYSENS037*)
This field-installed humidity sensor is mounted in the space
or in the return air duct, sending an analog input to the
customer connection (1KF10) and 1XD26. It must be
ordered/installed with modulating hot gas reheat, but can
also be used for humidification applications.
RT-SVX072D-EN
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