ZD Series Damper
SUBMITTAL SHEET
Job Name
Engineer
Mechanical Contractor
Contractor’s P.O. No.
Representative
Notes
Model(s)
Approval
Service
Tag No.
APPLICATION
The ZD is a power close and spring open damper. It has a 24-volt motor used to control circulating air in HVAC systems and used when a normally-open damper is required. The ZD is typically used with the TrueZONE and other electronic zoning systems.
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ZD FEATURES
Adjustable closed position range stops.
Rated to operate up to 1 in. wc.
Solid construction using extruded aluminum frame and blades.
Parallel blade design for low leakage performance.
Simple, easy-to-wire, two-wire installation with a third wire option M4 for LED open light.
Fail-safe, normally open operation.
Damper can be installed in any orientation (mounting side can be on either the bottom or the side of the duct).
Taping Flange and non-interfering set screw.
High Temperature outer plastic for hot environments.
Redesigned all Metal Drive Train Gears.
Front facing display with LED Indication light for Open and
Close.
Adjustable damper position range stops.
Quiet operation.
The ZD is intended for use as a zone damper. It cannot be configured to be power open for fresh air applications. EARD round dampers are power open. ARD round dampers are field convertible to be power open with an M847D-VENT actuator.
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not include normal manufacturing tolerances. Therefore, this unit may not exactly match the listed specifications. Also, this product is tested and calibrated under closely controlled conditions, and some minor differences in performance can be expected if those conditions are changed.
Motor Electrical Rating: 24 Vac, 60 Hz, 8VA.
Motor Electrical Connection: Push terminals. Solid (not stranded) wire is recommended.
Motor Nominal Angular Rotation: 90.
Motor Torque: Minimum 71 in.-oz. (500 millinewton meters) output torque available when motor is energized and device is at the spring return initial start position.
Nominal Motor Timing at 77 ° F (25 ° C) Ambient: Energized at rated load: 30 seconds. De-energized (spring return): 10 seconds.
Motor Ambient Temperature Rating: 40 to 140 ° F (5 to 60 ° C).
Leakage: Less than 1% at 1/2 in. wc.
Pressure Drop: Maximum at full open: 0.0329 in. wc at 800 ft/min.
Maximum Static Pressure: 1 in. wc for all models.
Motor Shaft Rotation Direction: Clockwise, when energized and viewed from the base or shaft end.
Motor Mounting Means: Direct connection to damper shaft.
Motor Mounting Position: Multi-poise.
REPLACEMENT PARTS
Motor (actuator assembly) M847D-ZONE
DIMENSIONS IN INCHES (MM)
4-31/32
(126)
4-41/64
(118)
4-1/16
(103)
3-61/64
(100)
M35186
SIZES
Order ZD (dimension 1) x (dimension 2) TZ. (Actuator is always mounted on dimension 2 side.) — For example, ZD10x8TZ is a 10 in. x 8 in. damper with the actuator on the 8 in. side; but a ZD8x10TZ is a 8 in. x 10 in. damper that has the actuator on the 10 in. side. All ZD dampers are actually sized 5/32 in. smaller than the listed size to ensure correct fit. All ZD models are 4" thick. Note that the damper can be installed in any orientation (mounting side can be on either the bottom or the side of the duct).
Available Sizes
6 in. 8 in.
6 in. ZD6X6TZ ZD6X8TZ
8 in. ZD8X6TZ ZD8X8TZ
10 in. ZD10X6TZ ZD10X8TZ
12 in. ZD12X6TZ ZD12X8TZ
14 in. ZD14X6TZ ZD14X8TZ
16 in. ZD16X6TZ ZD16X8TZ
18 in. ZD18X6TZ ZD18X8TZ
20 in. ZD20X6TZ ZD20X8TZ
22 in. ZD22X6TZ ZD22X8TZ
24 in. ZD24X6TZ ZD24X8TZ
26 in. ZD26X6TZ ZD26X8TZ
28 in. ZD28X6TZ ZD28X8TZ
10 in.
ZD6X10TZ
ZD8X10TZ
ZD10X10TZ
ZD12X10TZ
ZD14X10TZ
ZD16X10TZ
ZD18X10TZ
ZD20X10TZ
ZD22X10TZ
ZD24X10TZ
ZD26X10TZ
ZD28X10TZ
12 in.
ZD6X12TZ
ZD8X12TZ
ZD10X12TZ
ZD12X12TZ
ZD14X12TZ
ZD16X12TZ
ZD18X12TZ
ZD20X12TZ
ZD22X12TZ
ZD24X12TZ
ZD26X12TZ
ZD28X12TZ
14 in.
ZD6X14TZ
ZD8X14TZ
ZD10X14TZ
ZD12X14TZ
ZD14X14TZ
ZD16X14TZ
ZD18X14TZ
ZD20X14TZ
ZD22X14TZ
ZD24X14TZ
ZD26X14TZ
ZD28X14TZ
16 in.
ZD6X16TZ
ZD8X16TZ
ZD10X16TZ
ZD12X16TZ
ZD14X16TZ
ZD16X16TZ
ZD18X16TZ
ZD20X16TZ
ZD22X16TZ
ZD24X16TZ
ZD26X16TZ
ZD28X16TZ
18 in.
ZD6X18TZ
ZD8X18TZ
ZD10X18TZ
ZD12X18TZ
ZD14X18TZ
ZD16X18TZ
ZD18X18TZ
ZD20X18TZ
ZD22X18TZ
ZD24X18TZ
ZD26X18TZ
N/A
20 in.
ZD6X20TZ
ZD8X20TZ
ZD10X20TZ
ZD12X20TZ
ZD14X20TZ
ZD16X20TZ
ZD18X20TZ
ZD20X20TZ
ZD22X20TZ
ZD24X20TZ
ZD26X20TZ
ZD28X20TZ
22 in. 24 in. 26 in. 28 in.
ZD6X22TZ
ZD8X22TZ
ZD6X24TZ
ZD8X24TZ
ZD6X26TZ
ZD8X26TZ
ZD6X28TZ
ZD8X28TZ
ZD10X22TZ ZD10X24TZ ZD10X26TZ ZD10X28TZ
ZD12X22TZ ZD12X24TZ ZD12X26TZ ZD12X28TZ
ZD14X22TZ ZD14X24TZ ZD14X26TZ ZD14X28TZ
ZD16X22TZ ZD16X24TZ ZD16X26TZ
ZD18X22TZ ZD18X24TZ ZD18X26TZ
N/A
N/A
ZD20X22TZ ZD20X24TZ
ZD22X22TZ ZD22X24TZ
ZD24X22TZ ZD24X24TZ
N/A N/A
N/A N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
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33-00264-02 M.S. Rev. 03-21 | Printed in United States
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