WattMaster WM-WCC3-TGD-01B - Manual (Page 807)

Features
VAV/Zone Controller Actuator Package
This manual applies to the VAV/Zone Controller Packages that are
included in the following Orion products:
OE742-32-VAVF VAV/Zone Controller Actuator
Package - Pressure Dependent
OE744-32-VAVF VAV/Zone Controller Actuator
Package - Pressure Independent
OE520N-XX VAV/Zone Round Damper
Assembly - Pressure Dependent
OE521N-XX VAV/Zone Round Damper
Assembly - Pressure Independent
OE736N-01 VAV/Zone Rectangular Damper Kit
The VAV/Zone Controller Actuator Package is used for controlling
airfl ow and operation of VAV or Zoning terminal units. The package
contains the VAV/Zone Controller and Actuator mounted and housed in
a plastic enclosure. The VAV/Zone Controller is a programmable digital
controller which allows for program setpoints to be stored in non-volatile
memory. The controller is connected to a room sensor via a modular
cable assembly which monitors space temperature allowing the VAV/
Zone Controller to modulate a damper in response to space temperature,
duct temperature, and airfl ow requirements in the controlled space.
The VAV/Zone Controller Actuator Package has four integral modular
jacks for connection to the actuator, the airfl ow sensor (for pressure in-
dependent applications), the room sensor, and the VAV/Zone Controller
Expansion Module via modular cables. Terminal connections are pro-
vided for the 24 VDC power and system communications. The controller
has an on-board dip switch provided for board addressing.
Features
The VAV/Zone Controller is provided with electronic circuitry for tri-
state control of the damper actuator. All outputs are electrically isolated
from all other circuitry on the board. The actuator connects via a modular
cable to the board and provides the VAV/Zone Controller with feedback
monitoring for precise positioning of the actuator.
OE325-01 Zone Controller Expansion Module
The OE325-01 Zone Controller Expansion Module is used in conjunction
with the VAV/Zone Controller Actuator Package to allow for control of
VAV and Zone terminal units, including series and parallel fan terminal
units with 1, 2 or 3 stages of electric heat, modulating hot water heat,
2 position hot water heat, SCR electric heat, and/or auxiliary heat
devices.
The OE325-01 Zone Controller Expansion Module connects to the
VAV/Zone Controller board by means of a modular cable provided with
the expansion module. Power is supplied to the board by means of this
modular cable. Screw terminals are provided for connection of fi eld
wiring to the relay and analog outputs.
The relay outputs are N.O. contacts with one common terminal. All
outputs and the relay common are electrically isolated from all other
circuitry on the board. All relay outputs are supplied with transient
suppression devices across each set of contacts to reduce EMI and arcing.
The relay output contacts are rated for pilot duty control of a maximum
of 1 Amps @ 24 VAC or 24 VDC. The analog output provides a 0-10
VDC modulating signal output into a 1K Ohm minimum load.
3 VAV/Zone Controller Actuator Package Technical Guide
Overview