Orion System OE742-XX-VAVZ - Manual (Page 5)

Form: ORION-OE325-01-4RelayW-AnalogOutputExpBrd-1B.doc
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Description
The OE325-01 4 Relay with Analog
Output Expansion board is used in
conjunction with the OE742-31-
VAVZ, OE742-32-VAVZ, OE744-
31-VAVZ, OE744-32-VAVZ
VAV/Zone Controller Actuator
Packages, the OE736-01, OE736-
02 Rectangular Damper Kits,the
OE520-XX-M, OE520-XX-T,
OE521-XX-M, OE521-XX-M Round
Zone Damper Assemblies. It
allows for control of fans, including
series and parallel flow fan
terminal units and/or heat. The
OE325-01 Analog Output
Expansion board provides 4 relay
outputs for pilot duty switching
control, (1 fan, 2 heat and 1
auxiliary) relay output and 1 Analog
output for control of a 0-10V
modulating hot water valve or SCR
controlled electric heating coil.
The OE325-01 4 Relay W/ Analog
Output Expansion board connects
to the VAV/Zone Controller board
by means of a 18” long modular
cable provided with the board.
Power is supplied to the board by
means of this modular cable.
Screw terminals are provided for
connection of field 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 2 Amps @ 24 VAC or 24 VDC. The analog output provides a 0 – 10 VDC modulating signal output
into a 1k Ohm minimum load.
Mounting
The OE325-01 4 Relay W/ Analog Output Expansion Board is supplied mounted on a plastic snap track channel.
The snap track channel has two mounting holes which are used to field mount the board with the provided
screws. The board should be mounted in close proximity to the VAVZ Zone Controller board to allow for
connection of the modular cable.
Technical Data OE325-01 4 Relay W/ Analog
Output Expansion board
Operating Temp 10
F to 149F Operating Humidity 90% RH Non-Condensing
Weight 4 oz Connection to Controller: Modular Cable
Outputs: Inputs:
Analog Output
Qty & Rating (1) 0-10 VDC @ 1k Ohm
Minimum load
Analog Input Application Specific
Universal Input
Relay Output Qty. 4 – Electrically Isolated
Relay Contact Rating 2 Amp @ 24 VAC
Three Year Warranty WattMaster reserves the right to change specifications without notice
OE325-01 - 4 Relay W/ Analog Output
Expansion Board