VAV Controller—Variable Air Volume (VAV) Controller 9
In conjunction with the mechanical contractor, the controls contractor’s
responsibilities include:
1. Coordination of the control system release schedule to the box
manufacturer to ensure the mechanical system delivery schedule can
be met. Coordination with the local box manufacturer representative is
normally required.
2. Coordination with the electrical contractor to ensure the following
steps are covered.
z 24 VAC power is provided at each VAV Controller.
z N2 Bus wiring is pulled and terminated.
z Valve actuator wiring is pulled and terminated.
z Zone sensor cables are pulled. The use of phone cable for
terminating zone sensor wiring allows basically anyone to
terminate zone sensors in certain locales.
z If desired, the N2 address switches can be set by the electrical
contractor.
3. Initial loading of the HVAC PRO for Windows configuration files is
done once the electrical contractor’s functions are completed in
preparation for the final system balancing.
4. Training of the balancing contractor to ensure the balancing contractor
knows how to use the Zone Terminal (ZT) or HVAC PRO for
Windows Commissioning mode so they can perform the final system
balancing.
5. Mounting and terminating the cable connections for the zone
temperature sensor. Set the N2 address switch if the electrical
contractor was not contracted to perform this function.
6. Configuring, downloading, and commissioning the controller.