Trane VariTrac VAV-SVN03A-EN, Руководство по установке

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VAV-SVN03A-EN 22
If the supply duct branches out at the riser, install the control in the largest
supply duct.
A two-inch hole is required to insert the temperature and static pressure
sensor. Use the supplied gasket to seal off air leaks. Secure the sensor to
the duct with a minimum of three sheet metal screws.
IMPORTANT
The sensor assembly should be mounted on the side of the duct to keep
the pressure transducer in a vertical orientation. Do not install horizontally
on the top or bottom of a duct.
Connect the Communicating Sensor/Bypass Control
Wiring
The pre-wired interconnect cable plugs into the actuator connector inside
the control. The cable is designed to connect in one orientation only.
Refer to the diagram and connect as follows:
1 Plug the red actuator connector brom the BYPS damper onto the master
damper UCM socket (ACT) as shown in Figure 9.
2 If two bypass dampers are used, connect the second bypass damper’s
red actuator plus to the spare connector socket pigtailed on the first
BYPS damper cable assembly.
3 If cable assembly needs to be extended, cut and splice additional wire on
the BYPS damper end of the cable.
Figure 9: Wiring the Communicating Sensor/Bypass Control
Address
Switch
DDC/UCM
Control Board
Shielded Twisted Pair
Communications Wiring
To NEC Class 2
24V Transformer
Load 8 VA (without actuator)
Female plug end of bypass
sensor assembly cable
Male plug end located on
DDC/UCM control board
DDC/UCM
Control Board
Step 2
Open
Close
Hot
Actuator
Step 1
Step 1
Air Supply
Temp Sensor
Static
Pressure
Port
Pressure
Transducer
Getting Started