Orion OE742-XX-VAVZ User Manual
OE742-31-VAVZ VAV/Zone
Controller Actuator Package
Description
The OE742-31-VAVZ VAV/Zone
Controller Actuator Package with
Power/Comm connectors provides a new solution for zone
damper applications. The new
package includes a VAV/Zone
Actuator and a VAV/Zone Controller mounted in a plastic enclosure. An optional conduit cover is
also available that mounts over
the control terminals for installations requiring conduit connections. The VAV/Zone Controller
Actuator Package is designed for
left- or right-hand mounting on a
VAV Terminal unit. Each package
comes standard with a right-hand
label and the actuator positioned
for right-hand use. For left-hand
units, the actuator can be rotated
180 degrees by removing two
screws that secure it to the enclosure, rotating the damper actuator, and re-fastening the actuator
to the enclosure. A left-hand label
is also supplied that can be applied over the right-hand label for
left-hand applications.
Mounting
The VAV/Zone Actuator package
is very easy to mount on your
terminal unit. It is installed by
simply loosening the damper
shaft u-bolt on the actuator and sliding the entire Zone Controller Actuator Package Assembly over the terminal unit’s damper
shaft, tightening the actuator u-bolt around the damper shaft, and inserting a self-tapping screw into the anti-rotation bushing
located at the opposite end of the enclosure base. Detailed mounting and installation instructions are provided with each
package. A conduit enclosure is available as an option which provides conduit knockouts and encloses the electrical connections for applications where code requirements mandate conduit be used for low voltage electrical wiring.
Technical Data OE742-31-VAVZ
VAV/Zone Controller Actuator Package
Zone Controller: Outputs:
Supply Power 24 VAC (1) RJ-45 Cable Connection For Auxiliary Relay Board
Power Consumption 6 VA Maximum (1) RJ-45 Cable Connection To Damper Actuator
Operating Tempera-
ture
Operating Humidity 90% RH Non-Condensing
Communications RS-485 – 9600 Baud Programming Port Mini-DIN Jr. Port
Inputs:
(1) RJ-45 Cable Connection For Digital Temperature
Or Analog Temperature
(2) Auxiliary Terminals For Duct Temperature Sensor
(1) Molex Connector For Power/Comm In Airflow Ports Barbed Tube Fittings (PI Versions Only)
WattMaster reserves the right to change specifications without notice.
Three Year Warranty
Form: Orion-OE742-31-VAVZ-ZCAP-Sub-01C.doc Page 1 of 1
10F to 149F
Enclosure Material Fire Rated ABS Plastic
Zone Controller Factory Mounted Inside The Enclosure
Zone Actuator Factory Mounted To The Enclosure
Actuator Rating 35 in/lbs (6 ft2 Damper Area Max.)
Labeling Right Hand & Left Hand
(1) Molex Connector For Power/Comm Out
Features:
OE742-32-VAVZ VAV/Zone
Controller Actuator Package
Description
The OE742-32-VAVZ
VAV/Zone Controller Actuator
Package with Terminal Block
connectors provides a new solution for zone damper applications. The new package includes a VAV/Zone Actuator
and a VAV/Zone Controller
mounted in a plastic enclosure.
An optional conduit cover is
also available that mounts over
the control terminals for installations requiring conduit connections. The VAV/Zone Controller
Actuator Package is designed
for left- or right-hand mounting
on a VAV Terminal unit. Each
package comes standard with a
right-hand label and the actuator positioned for right-hand
use. For left-hand units, the
actuator can be rotated 180
degrees by removing two
screws that secure it to the enclosure, rotating the damper
actuator, and re-fastening the
actuator to the enclosure. A lefthand label is also supplied that
can be applied over the righthand label for left-hand applications.
Mounting
The VAV/Zone Actuator package is very easy to mount on
your terminal unit. It is installed
by simply loosening the damper shaft u-bolt on the actuator and sliding the entire Zone Controller Actuator Package Assembly
over the terminal unit’s damper shaft, tightening the actuator u-bolt around the damper shaft, and inserting a self-tapping
screw into the anti-rotation bushing located at the opposite end of the enclosure base. Detailed mounting and installation instructions are provided with each package. A conduit enclosure is available as an option which provides conduit knockouts
and encloses the electrical connections for applications where code requirements mandate conduit be used for low voltage
electrical wiring.
Technical Data OE742-32-VAVZ VAV/Zone Controller Actuator Package
Zone Controller: Outputs:
Supply Power 24 VAC (1) RJ-45 Cable Connection For Auxiliary Relay Board
Power Consumption 6 VA Maximum (1) RJ-45 Cable Connection To Damper Actuator
Operating Temperature
Operating Humidity 90% RH Non-
Communications RS-485 – 9600 Baud Programming Port Mini-DIN Jr. Port
Inputs:
(1) RJ-45 Cable Connection For Digital Temperature
Or Analog Temperature
(2) Auxiliary Terminals For Duct Temperature
Sensor
(1) Terminal Block Connector For Power In Airflow Ports Barbed Tube Fittings (PI Versions Only)
(1) Terminal Block Connector For Comm In
WattMaster reserves the right to change specifications without notice. Three Year Warranty
Form: Orion-OE742-32-VAVZ-ZCAP-Sub-01B.doc Page 1 of 1
10F to 149F
Condensing
Enclosure Material Fire Rated ABS Plastic
Zone Controller Factory Mounted Inside The Enclosure
Zone Actuator Factory Mounted To The Enclosure
Actuator Rating 35 in/lbs (6 ft2 Damper Area Max.)
Labeling Right Hand & Left Hand
Uses Same 3 Conductor Terminal Block as Comm Input
Features:
OE744-31-VAVZ VAV/Zone
Controller Actuator Package
Description
The OE744-31-VAVZ VAV/Zone
Controller Actuator Package with
Power/Comm connectors provides a new solution for zone
damper applications. The new
package includes a VAV/Zone
Actuator, a VAV/Zone Controller,
and an Airflow Sensor all mounted in a plastic enclosure. An optional conduit cover is also available that mounts over the control
terminals for installations requiring conduit connections. The
VAV/Zone Controller Actuator
Package is designed for left- or
right-hand mounting on a VAV
Terminal unit. Each package
comes standard with a right-hand
label and the actuator positioned
for right-hand use. For left-hand
units, the actuator can be rotated
180 degrees by removing two
screws that secure it to the enclosure, rotating the damper actuator, and re-fastening the actuator to the enclosure. A left-hand
label is also supplied that can be
applied over the right-hand label
for left-hand applications.
Mounting
The VAV/Zone Actuator package
is very easy to mount on your
terminal unit. It is installed by
simply loosening the damper
shaft u-bolt on the actuator and
sliding the entire Zone Controller Actuator Package Assembly over the terminal unit’s damper shaft, tightening the actuator ubolt around the damper shaft, and inserting a self-tapping screw into the anti-rotation bushing located at the opposite end of
the enclosure base. Detailed mounting and installation instructions are provided with each package. A conduit enclosure is
available as an option which provides conduit knockouts and encloses the electrical connections for applications where code
requirements mandate conduit be used for low voltage electrical wiring.
Technical Data OE744-31-VAVZ
VAV/Zone Controller Actuator Package
Zone Controller: Outputs:
Supply Power 24 VAC (1) RJ-45 Cable Connection For Auxiliary Relay Board
Power Consumption 6 VA Maximum (1) RJ-45 Cable Connection To Damper Actuator
Operating Temperature
Operating Humidity 90% RH Non-Condensing
Communications RS-485 – 9600 Baud Programming Port Mini-DIN Jr. Port
Inputs:
(1) RJ-45 Cable Connection For Digital Temperature
Or Analog Temperature
(2) Auxiliary Terminals For Duct Temperature Sensor Labeling Right Hand & Left Hand
(1) Molex Connector For Power/Comm In Airflow Ports Barbed Tube Fittings (PI Versions Only)
WattMaster reserves the right to change specifications without notice.
Three Year Warranty
Form: Orion-OE744-31-VAVZ-ZCAP-Sub-01C.doc Page 1 of 1
10F to 149F
Enclosure Material Fire Rated ABS Plastic
Zone Controller Factory Mounted Inside The Enclosure
Zone Actuator Factory Mounted To The Enclosure
Actuator Rating 35 in/lbs (6 ft2 Damper Area Max.)
(1) Molex Connector For Power/Comm Out
Features:
Description
The OE744-32-VAVZ
VAV/Zone Controller Actuator
Package with Terminal Block
connectors provides a new solution for zone damper applications. The new package includes a VAV/Zone Actuator, a
VAV/Zone Controller, and an
Airflow Sensor all mounted in a
plastic enclosure. An optional
conduit cover is also available
that mounts over the control
terminals for installations requiring conduit connections. The
VAV/Zone Controller Actuator
Package is designed for left- or
right-hand mounting on a VAV
Terminal unit. Each package
comes standard with a righthand label and the actuator
positioned for right-hand use.
For left-hand units, the actuator
can be rotated 180 degrees by
removing two screws that secure it to the enclosure, rotating
the damper actuator, and refastening the actuator to the
enclosure. A left-hand label is
also supplied that can be applied over the right-hand label
for left-hand applications.
OE744-32-VAVZ VAV/Zone
Controller Actuator Package
Mounting
The VAV/Zone Actuator package is very easy to mount on your terminal unit. It is installed by simply loosening the damper shaft u-bolt on the actuator and
sliding the entire Zone Controller Actuator Package Assembly over the terminal unit’s damper shaft, tightening the actuator ubolt around the damper shaft, and inserting a self-tapping screw into the anti-rotation bushing located at the opposite end of
the enclosure base. Detailed mounting and installation instructions are provided with each package. A conduit enclosure is
available as an option which provides conduit knockouts and encloses the electrical connections for applications where code
requirements mandate conduit be used for low voltage electrical wiring.
Technical Data OE744-32-VAVZ VAV/Zone Controller Actuator Package
Zone Controller: Outputs:
Supply Power 24 VAC (1) RJ-45 Cable Connection For Auxiliary Relay Board
Power Consumption 6 VA Maximum (1) RJ-45 Cable Connection To Damper Actuator
Operating Temperature
Operating Humidity 90% RH Non-Condensing
Communications RS-485 – 9600 Baud Programming Port Mini-DIN Jr. Port
Inputs:
(1) RJ-45 Cable Connection For Digital Temperature
Or Analog Temperature
(2) Auxiliary Terminals For Duct Temperature Sensor Labeling Right Hand & Left Hand
(1) Terminal Block Connector For Power In Airflow Ports Barbed Tube Fittings (PI Versions Only)
(1) Terminal Block Connector For Comm In
WattMaster reserves the right to change specifications without notice.
Three Year Warranty
10F to 149F
Enclosure Material Fire Rated ABS Plastic
Zone Controller Factory Mounted Inside The Enclosure
Zone Actuator Factory Mounted To The Enclosure
Actuator Rating 35 in/lbs (6 ft2 Damper Area Max.)
Form: Orion-OE744-32-VAVZ-ZCAP-Sub-01B.doc Page 1 of 1
Uses Same 3 Conductor Terminal Block as Comm Input
Features:
Description
The OE325-01 4 Relay with Analog
Output Expansion board is used in
conjunction with the OE742-31VAVZ, OE742-32-VAVZ, OE74431-VAVZ, OE744-32-VAVZ
VAV/Zone Controller Actuator
Packages, the OE736-01, OE73602 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.
OE325-01 - 4 Relay W/ Analog Output
Expansion Board
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
Weight 4 oz Connection to Controller: Modular Cable
10F to 149F
Operating Humidity 90% RH Non-Condensing
Outputs: Inputs:
Analog Output
Qty & Rating
Relay Output Qty. 4 – Electrically Isolated
Relay Contact Rating 2 Amp @ 24 VAC
Three Year Warranty
Form: ORION-OE325-01-4RelayW-AnalogOutputExpBrd-1B.doc Page 1 of 1
(1) 0-10 VDC @ 1k Ohm
Minimum load
Analog Input Application Specific
Universal Input
WattMaster reserves the right to change specifications without notice
Description
The Orion OE282 Damper Actuator is
a shaft mounted, floating point control
actuator. Actuators are 24VAC/24VDC
with a 10K ohm feedback signal for position monitoring. Wiring connection to
the actuator is by means of a modular
phone cable connector located on the
actuator cover. The actuator is rated for
35 in-lb of torque. All actuators are
electronically protected against overload. The angle of rotation is mechanically limited to 95. When the end position of the actuator or damper is
reached, the actuator automatically
stops. For adjustment purposes, the
gears can be manually disengaged by
pushing the manual override button on
the actuator cover.
OE282 - Damper Actuator
Applications
The OE282 Damper Actuator is used to
provide control of air volume dampers
in an Orion VAV or zoning systems.
When used in VAV and Zoning applications it is typically used in conjunction
with an OE324-00-VAVZ Zone controller board.
Technical Data OE282
Power Supply
Life Cycle Rating 2.5 Million Cycles with Mechanical Stops
Power Consumption 3 VA Maximum Power Connection RJ-11 Modular Jack
Operating Temp
Operating Humidity 5 to 95% RH Non-Condensing Quality Standard ISO 9001
Overload Protection
Feedback Signal 10K ohm 1W Potentiometer Torque Minimum 35 in-lb
Running Time 80-110 Seconds. Weight 1.2 lb.
Three Year Warranty WattMaster reserves the right to change specifications without notice
24VAC 20% 50/60HZ
-22F to 122F
Electronic Throughout 0 to 95
Rotation
Angle of Rotation
Servicing Maintenance Free
Agency Listings UL873 listed
Damper Actuator
Max. 95, Adjustable
CSA 4813 02 Certified
Form: ORION-OE282-ProportionalDamper Actuator-1C.doc Page 1 of 1
Description
The OE282 Damper Actuator is a shaft mounted,
floating point control actuator. Actuators are
24VAC/24VDC with a 10K ohm feedback signal
for position monitoring. Wiring connection to the
actuator is by means of a modular phone cable
connector located on the actuator cover. The
actuator is rated for 45 in-lb of torque. All
actuators are electronically protected against
overload. The angle of rotation is mechanically
limited to 95. When the end position of the
actuator or damper is reached, the actuator
automatically stops. For adjustment purposes,
the gears can be manually disengaged by
pushing the manual override button on the
actuator cover.
Zone Damper Actuator
OE282-01
Applications
The OE282 Damper Actuator is used to provide
control of air volume dampers in an VAV or
Zoning system.
When used in VAV and Zoning applications it is
normally factory mounted in the OE742-31VAVZ, OE742-32-VAVZ. P.D. VAV/Zone
Controller Actuator Packages or the OE744-31VAVZ, OE744-32-VAVZ. P.I. VAV/Zone
Controller Actuator Packages.
It is also a component of the OE282-03 Slaved
VAV/Zone Damper Kit. This kit allows multiple
dampers (up to 2 total besides the master) to be
connected to a master OE742-31-vVAVZ, OE742-32-VAVZ P.D. Zone/VAV Controller Actuator Package or
OE744-31-VAVZ, OE744-32-VAVZ P.I. Zone/VAV Controller Actuator Packages. The OE282-03 Kit is typically
used when larger CFM requirements dictate multiple dampers be used.
Technical Data OE282-01 Damper Actuator
Power Supply
Life Cycle Rating 2.5 Million Cycles with Mechanical Stops
Power Consumption 3 VA Maximum Power Connection RJ-11 Modular Jack
Operating Temp
Operating Humidity 5 to 95% RH Non-
Overload Protection Electronic Throughout 0 to
Feedback Signal 10K ohm 1W Potentiometer Torque Minimum 45 in-lb
Running Time 80-110 Seconds. Weight 1.2 lb.
Three Year Warranty
Form: ORION-OE282-01ZoneDmprAct-Sub-01A.doc Page 1 of 1
24VAC 20% 50/60HZ
-22F to 122F
Condensing
95 Rotation
Angle of Rotation
Servicing Maintenance Free
Quality Standard ISO 9001
Agency Listings UL873 listed
WattMaster reserves the right to change specifications without notice
Max. 95, Adjustable
CSA 4813 02 Certified
Description
The OE520-XX-M Round Pressure
Dependent Zone Damper Assembly with
modular connectors consists of a round
air damper and Zone Controller Actuator
Package with modular wiring connectors.
An optional Zone Controller Expansion
Module (OE325-01) is available for
control of reheat, heat and/or control of
series or parallel flow fan terminal units.
The Zone Controller board is
microprocessor based and communicates
with the HVAC unit controller on the Orion
network communications loop. The Zone
Controller monitors the space
temperature and allocates the proper
airflow into its assigned space to achieve
the desired comfort and ventilation levels.
Pressure Dependent Zone Dampers are
used in air conditioning systems that do
not require pressure independent airflow
control. If your system requires pressure
independent control of the airflow, see the
“OE521-XX-M Round Pressure
Independent Zone Damper” submittal sheet for the correct specifications. All dampers are tested for performance
in accordance with AMCA 500D standards.
OE520-XX-M Round P.D. Zone Damper
Assembly W/ Modular Connectors
Mounting
The Zone Damper Assembly should be mounted according to standard duct installation practices with airflow
direction as shown in the illustration above. After installation of the Zone Damper in the ductwork, insulation
should be applied around any remaining un-insulated surface on the damper inlet and outlet. The Zone Damper
should be mounted so the control enclosure is positioned to the left or right side of the ductwork with the control
enclosure in a vertical plane. Do not mount the Zone Damper Assembly with the control enclosure on the top or
bottom of the ductwork. Adequate clearance should be maintained between the control panel and any
obstruction to allow for removal of the control panel cover and access to the controls.
Technical Data
Zone Damper Assembly W/ Modular Connectors
OE520-XX-M Round Pressure Dependent
Zone Controller: Air Damper Construction:
Supply Power 24 Volt AC Damper Body 20 Ga. Galv. Steel
Power Consumption 6 VA Maximum Damper Blade Round -18 Ga. Galv. Steel
Operating Temperature
Operating Humidity 90% RH Non-Condensing Damper Seal EPDM Rubber Gasket
Communications RS-485 - 9600 Baud Leakage < 20 CFM Per Sq. Ft. @ 4” SP
35F to 125F
Damper Bearings Stainless Steel
Insulation ½” Foil Faced Fiberglass
Inputs: Dimensions:
Room Temperature Sensor
Setpoint Adjustment OE510-06 (6”) 23.00 5.88 9.88
Actuator Position Feedback OE510-08 (8”) 23.00 7.88 12.13
Communication Connectors: Modular In & Out
Outputs:
Expansion Port for Auxiliary Relay Board OE510-14 (14”) 23.00 13.88 18.50
Actuator Port for Connection to Damper Actuator OE510-16 (16”) 23.00 15.88 20.56
WattMaster reserves the right to change specifications without notice
Three Year Warranty On Electronic Components One Year Warranty On Air Damper
Air Damper Model “A” “B” “C”
OE510-10 (10”) 23.00 9.88 14.31
OE510-12 (12”) 23.00 11.88 16.43
Form: Orion-OE520XX-M-RndDmpr-Sub-01G Page 1 of 2
OE520-XX-M Round P.D. Zone Damper
Assembly W/ Modular Connectors
Zone Damper Sizing
Use a load program to determine the peak
load for each zone. These calculations will be
used to select VAV/Zone Damper sizes.
The Orion Systems utilize a typical low
pressure duct design. To reduce noise
problems, duct pressures should not exceed
1” W.C.
Primary trunk ducts used with Orion systems
should not be “undersized”. This is especially
true of “pressure dependent” systems. With
larger trunk ducts, it is easier to assure
relatively constant pressure to each Zone
Damper. Runs should be as short as
possible, and the trunk duct system kept as
symmetrical as possible to facilitate system
balancing. Wherever possible, run the trunk
ducts above corridors and locate the Zone
Dampers above corridors to reduce the noise
in the space and facilitate service of the
valves. Trunk ducts should be sized for no
more than 0.1” W.C. drop per 100 ft. of duct,
and a maximum duct velocity of 2000 FPM.
Zone Damper Selection Data
Zone Damper Round Duct Size
(Area Ft
Velocity Through VAV/Zone Damper
FPM
500
750
1000
1250
1500
1750
2000
2
)
WattMaster reserves the right to change specifications without notice
6”
(0.196)
98
(< 0.01)
147
(0.01)
196
(0.015)
245
(0.025)
294
(0.035)
343
(0.045)
392
(0.065)
Using the maximum acceptable velocity for a branch duct
(typically 1000-1500 FPM for minimal noise), find the smallest
Zone Damper that will deliver the required CFM as determined
by the load program. Locate the branch velocity used in the duct
design program in the left hand column of the Zone Damper
Selection Data table. Move across the table and find the Zone
Damper, which will provide the acceptable CFM to meet the zone
airflow requirements.
Note: Compare the Zone Damper size selected against the
duct size to determine if the next size up or down will
provide acceptable performance without requiring a
transition fitting.
Up to a maximum of two Slaved Zone Dampers may be slaved
together with the main Zone Damper for large zones. This design
should be reserved only for situations when it is not practical to
use a single Zone Damper. See the AZ-300-RS Round Slaved
Zone Damper submittal sheet for information regarding
application and selection of Round Slaved Zone Dampers.
OE520-XX-M Round Pressure Dependent
Zone Damper Assembly W/ Modular Connectors
8”
(0.349)
Airflow Through VAV/Zone Damper - CFM
(P
175
(< 0.01)
262
(0.01)
349
(0.015)
436
(0.02)
523
(0.035)
611
(0.035)
698
(0.043)
10”
(0.545)
inches W.C. w/ Damper Full Open)
S
273
(< 0.01)
409
(0.01)
545
(0.01)
681
(0.015)
818
(0.022)
954
(0.034)
1090
(0.040)
12”
(0.785)
393
(< 0.01)
589
(< 0.01)
785
(< 0.01)
981
(0.015)
1178
(0.020)
1374
(0.030)
1570
(0.040)
(1.069)
(< 0.01)
(< 0.01)
(< 0.01)
(0.015)
(0.030)
(0.040)
14”
535
802
1069
1336
1604
0.020)
1871
2138
16”
(1.396)
698
(< 0.01)
1047
(< 0.01)
1396
(< 0.01)
1745
(0.015)
2094
(0.020)
2443
(0.025)
2792
(0.030)
Form: Orion-OE520XX-M-RndDmpr-Sub-01G Page 2 of 2
Description
The OE520-XX-T Round Pressure Dependent
Zone Damper Assembly with terminal
connectors consists of a round air damper
and Zone Controller Actuator Package with
terminal wiring connectors. An optional Zone
Controller Expansion Module (OE325-01) is
available for control of reheat, heat and/or
control of series or parallel flow fan terminal
units.
The Zone Controller board is microprocessor
based and communicates with the HVAC unit
controller on the Orion network
communications loop. The Zone Controller
monitors the space temperature and allocates
the proper airflow into its assigned space to
achieve the desired comfort and ventilation
levels.
Pressure Dependent Zone Dampers are used
in air conditioning systems that do not require
pressure independent airflow control. If your
system requires pressure independent control
of the airflow, see the “OE521-XX-T Round
Pressure Independent Zone Damper”
submittal sheet for the correct specifications. All dampers are tested for performance in accordance with AMCA
500D standards.
OE520-XX-T Round P.D. Zone Damper
Assembly W/ Terminal Connectors
Mounting
The Zone Damper Assembly should be mounted according to standard duct installation practices with airflow
direction as shown in the illustration above. After installation of the Zone Damper in the ductwork, insulation
should be applied around any remaining un-insulated surface on the damper inlet and outlet. The Zone Damper
should be mounted so the control enclosure is positioned to the left or right side of the ductwork with the control
enclosure in a vertical plane. Do not mount the Zone Damper Assembly with the control enclosure on the top or
bottom of the ductwork. Adequate clearance should be maintained between the control panel and any
obstruction to allow for removal of the control panel cover and access to the controls.
Technical Data
Zone Damper Assembly W/ Terminal Connectors
OE520-XX-T Round Pressure Dependent
Zone Controller: Air Damper Construction:
Supply Power 24 Volt AC Damper Body 20 Ga. Galv. Steel
Power Consumption 6 VA Maximum Damper Blade Round -18 Ga. Galv. Steel
Operating Temperature
Operating Humidity 90% RH Non-Condensing Damper Seal EPDM Rubber Gasket
Communications RS-485 - 9600 Baud Leakage < 20 CFM Per Sq. Ft. @ 4” SP
35F to 125F
Damper Bearings Stainless Steel
Insulation ½” Foil Faced Fiberglass
Inputs: Dimensions:
Room Temperature Sensor
Setpoint Adjustment OE510-06 (6”) 23.00 5.88 9.88
Actuator Position Feedback OE510-08 (8”) 23.00 7.88 12.13
Communication Connectors: Terminals In & Out
Outputs:
Expansion Port for Auxiliary Relay Board OE510-14 (14”) 23.00 13.88 18.50
Actuator Port for Connection to Damper Actuator OE510-16 (16”) 23.00 15.88 20.56
WattMaster reserves the right to change specifications without notice
Three Year Warranty On Electronic Components One Year Warranty On Air Damper
Air Damper Model “A” “B” “C”
OE510-10 (10”) 23.00 9.88 14.31
OE510-12 (12”) 23.00 11.88 16.43
Form: Orion-OE520XX-T-RndDmpr-Sub-01G Page 1 of 2
OE520-XX-T Round P.D. Zone Damper
Assembly W/ Terminal Connectors
VAV/Zone Damper Sizing
Use a load program to determine the peak
load for each zone. These calculations will be
used to select Zone Damper sizes.
The Orion Systems utilize a typical low
pressure duct design. To reduce noise
problems, duct pressures should not exceed
1” W.C.
Primary trunk ducts used with Orion systems
should not be “undersized”. This is especially
true of “pressure dependent” systems. With
larger trunk ducts, it is easier to assure
relatively constant pressure to each Zone
Damper. Runs should be as short as
possible, and the trunk duct system kept as
symmetrical as possible to facilitate system
balancing. Wherever possible, run the trunk
ducts above corridors and locate the Zone
Dampers above corridors to reduce the noise
in the space and facilitate service of the
valves. Trunk ducts should be sized for no
more than 0.1” W.C. drop per 100 ft. of duct,
and a maximum duct velocity of 2000 FPM.
Zone Damper Selection Data
Zone Damper Round Duct Size
(Area Ft
Velocity Through VAV/Zone Damper
FPM
500
750
1000
1250
1500
1750
2000
2
)
WattMaster reserves the right to change specifications without notice
6”
(0.196)
98
(< 0.01)
147
(0.01)
196
(0.015)
245
(0.025)
294
(0.035)
343
(0.045)
392
(0.065)
Using the maximum acceptable velocity for a branch duct
(typically 1000-1500 FPM for minimal noise), find the smallest
Zone Damper that will deliver the required CFM as determined
by the load program. Locate the branch velocity used in the
duct design program in the left hand column of the Zone
Damper Selection Data table. Move across the table and find
the Zone Damper, which will provide the acceptable CFM to
meet the zone airflow requirements.
Note: Compare the Zone Damper size selected against
the duct size to determine if the next size up or
down will provide acceptable performance without
requiring a transition fitting.
Up to a maximum of two Slaved Zone Dampers may be slaved
together with the main Zone Damper for large zones. This
design should be reserved only for situations when it is not
practical to use a single Zone Damper. See the AZ-300-RS
Round Slaved Zone Damper submittal sheet for information
regarding application and selection of Round Slaved Zone
Dampers.
OE520-XX-T Round Pressure Dependent
Zone Damper Assembly W/ Terminal Connectors
8”
(0.349)
Airflow Through VAV/Zone Damper - CFM
(P
175
(< 0.01)
262
(0.01)
349
(0.015)
436
(0.02)
523
(0.035)
611
(0.035)
698
(0.043)
10”
(0.545)
inches W.C. w/ Damper Full Open)
S
273
(< 0.01)
409
(0.01)
545
(0.01)
681
(0.015)
818
(0.022)
954
(0.034)
1090
(0.040)
12”
(0.785)
393
(< 0.01)
589
(< 0.01)
785
(< 0.01)
981
(0.015)
1178
(0.020)
1374
(0.030)
1570
(0.040)
(1.069)
(< 0.01)
(< 0.01)
(< 0.01)
(0.015)
0.020)
(0.030)
(0.040)
14”
535
802
1069
1336
1604
1871
2138
16”
(1.396)
698
(< 0.01)
1047
(< 0.01)
1396
(< 0.01)
1745
(0.015)
2094
(0.020)
2443
(0.025)
2792
(0.030)
Form: Orion-OE520XX-T-RndDmpr-Sub-01G Page 2 of 2
Description
The OE521-XX-M Round Pressure
Independent Zone Damper Assembly with
modular connectors consists of a round
air damper with air flow pickup cross and
a Zone Controller Actuator Package
(including air flow sensor) with modular
connectors. An optional Zone Controller
Expansion Module (OE325-01) is
available for control of reheat, heat and/or
control of series or parallel flow fan
terminal units.
The Zone Controller board is
microprocessor based and communicates
with the HVAC unit controller on the Orion
network communications loop. The Zone
Controller monitors the space
temperature and allocates the proper
airflow into its assigned space to achieve
the desired comfort and ventilation levels.
Pressure Independent Zone Dampers are
used in air conditioning systems require
pressure independent airflow control. If
your system requires pressure dependent
control of the airflow, see the “OE520-XX-M Round Pressure Dependent Zone Damper” submittal sheet for the
correct specifications. All dampers are tested for performance in accordance with AMCA 500D standards.
OE521-XX-M Round P.I. Zone Damper
Assembly W/ Modular Connectors
Mounting
The Zone Damper Assembly should be mounted according to standard duct installation practices with airflow
direction as shown in the illustration above. After installation of the Zone Damper in the ductwork, insulation
should be applied around any remaining un-insulated surface on the damper inlet and outlet. The Zone Damper
should be mounted so the control enclosure is positioned to the left or right side of the ductwork with the control
enclosure in a vertical plane. Do not mount the Zone Damper Assembly with the control enclosure on the top or
bottom of the ductwork. Adequate clearance should be maintained between the control panel and any
obstruction to allow for removal of the control panel cover and access to the controls.
Technical Data
OE521-XX-M Round Pressure Independent
Zone Damper Assembly W/ Modular Connectors
Zone Controller: Air Damper Construction:
Supply Power 24 Volt AC Damper Body 20 Ga. Galv. Steel
Power Consumption 6 VA Maximum Damper Blade Round -18 Ga. Galv. Steel
Operating Temperature
Operating Humidity 90% RH Non-Condensing Damper Seal EPDM Rubber Gasket
Communications RS-485 - 9600 Baud Leakage < 20 CFM Per Sq. Ft. @ 4” SP
35F to 125F
Inputs:
Air Flow Sensor
Room Temperature Sensor
Setpoint Adjustment OE510-06 (6”) 23.00 5.88 9.88
Actuator Position Feedback OE510-08 (8”) 23.00 7.88 12.13
Communication Connectors: Modular In & Out
Outputs:
Expansion Port for Auxiliary Relay Board OE510-14 (14”) 23.00 13.88 18.50
Actuator Port for Connection to Damper Actuator OE510-16 (16”) 23.00 15.88 20.56
WattMaster reserves the right to change specifications without notice
Three Year Warranty On Electronic Components One Year Warranty On Air Damper
Damper Bearings Stainless Steel
Insulation ½” Foil Faced Fiberglass
Dimensions:
Air Damper Model “A” “B” “C”
OE510-10 (10”) 23.00 9.88 14.31
OE510-12 (12”) 23.00 11.88 16.43
FormOrion-OE521XX-M-RndDmpr-Sub-01G Page 1 of 2
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