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Installation
communication Interface, or Modbus option which
utilizes a serial communication link must:
•
be 18 AWG shielded twisted pair cable (Belden 8760 or
equivalent).
•
not exceed 5,000 feet maximum for each link.
•
not pass between buildings.
Constant Volume Zone Panel
(BAYSENS108*)
This electronic sensor features four system switch settings
(Heat, Cool, Auto, and Off) and two fan settings (On and
Auto). It is a manual or automatic changeover control with
dual setpoint capability.
Variable Air Volume System Controls
VAV Changeover Contacts
The changeover input is used with modulating gas heat,
electric heat, or hydronic heat. When the contacts are
closed, the unit will control to the discharge heating
setpoint. Refer to the unit wiring diagram for the field
connection terminals in the unit control panel. The switch
must be rated at 12 ma @ 24 VDC minimum.
Variable Air Volume System Controls
Remote Zone Sensor (BAYSENS073*)
This electronic analog sensor features remote zone
sensing and timed override with override cancellation. It is
used as the source for zone temperature control. Refer to
Table 31, p. 60
for the Temperature vs. Resistance
coefficient.
Remote Zone Sensor (BAYSENS074*)
This electronic analog sensor features single setpoint
capability and timed override with override cancellation. It
is used with a Trane Integrated Comfort™ system. Refer to
Table 31, p. 60
for the Temperature vs. Resistance
coefficient.
CO2 Sensing—Space or Duct
The CO
sensor shall have the ability to monitor space
2
occupancy levels within the building by measuring the parts
per million of CO
in the air. As the CO
2
the outside air damper modulates to meet the CO
ventilation requirements.
Stop/Off/Auto
The Symbio™ 800 controller will stop of turn off the
IntelliPak unit for a number of reasons. The user interface
home screen displays unit mode of Stopped or Auto.
Stopped is indicated when an override is preventing
operation such as: Local Stop, Emergency Stop or
Equipment Stop input is active. Auto is indicated when in
automatic control but is currently off in modes such as:
Unoccupied, Ventilation Override, or Emergency Override.
58
levels increase,
2
space
2
When Heat Cool Mode Status is Off, unit operation will be
prevented; whereas, all other modes allow operation.
Emergency Override
When a Lontalk®/BACnet® communication module is
installed, the user can initiate from the Trane Tracer®
Summit or 3rd party BAS one of five (5) predefined, not
available to configure, Emergency Override sequences. All
compressors, condenser fans and the Humidification
output are deenergized for any Emergency Override
sequence. Each Emergency Override sequence
commands the unit operation as follows:
•
PRESSURIZE_EMERG
–
Supply Fan - On
–
Supply Fan VFD Open/Max (if so equipped)
–
Exhaust Fan - Off; Exhaust Dampers Closed (if so
equipped)
–
OA Dampers - Open; Return Damper - Closed
–
Heat - All heat stages off; Mod Heat output at 0
VDC
–
Occupied/Unoccupied/VAV box output - Energized
–
VOM Relay - Energized (if so equipped)
–
Preheat Output - Off
–
Return Fan - Off; Exhaust Dampers - Closed (if so
equipped)
–
Return VFD - Min (if so equipped)
•
EMERG_DEPRESSURIZE
–
Supply Fan - Off
–
Supply Fan VFD - Closed/Min (if so equipped)
–
Exhaust Fan - On; Exhaust Dampers Open/Max (if
so equipped)
–
OA Dampers - Closed; Return Damper - Open
–
Heat - All heat stages off; Mod Heat output at 0
VDC
–
Occupied/Unoccupied/VAV box output - Energized
–
VOM Relay - Energized (if so equipped)
–
Preheat Output - Off
–
Return Fan - On; Exhaust Dampers - Open (if so
equipped)
–
Return VFD - Max (if so equipped)
•
EMERG_PURGE
–
Supply Fan - On
–
Supply Fan VFD - Open/Max (if so equipped)
–
Exhaust Fan - On; Exhaust Dampers Open (if so
equipped)
–
OA Dampers - Open; Return Damper - Closed
–
Heat - All heat stages off; Mod Heat output at 0
VDC
–
Occupied/Unoccupied/VAV box output - Energized
–
VOM Relay - Energized (if so equipped)
–
Preheat Output - Off
–
Return Fan - On; Exhaust Dampers - Open (if so
equipped)
–
Return VFD - Max (if so equipped)
•
EMERG_SHUTDOWN
RT-SVX073A-EN
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