Honeywell TrueZone Direct Drive Damper Actuator Installation Guide
- June 7, 2024
- Honeywell
Table of Contents
TrueZone Direct Drive
Damper Actuator
FOR USE ON ZD, ARD, AND EARTH SERIES DAMPERS
INSTALLATION INSTRUCTIONS
APPLICATION
The M847D actuators are two positions, 24 Vac spring return damper actuators
designed to operate directly driven zone or vent dampers, used to control
airflow in ducts.
The M847D-ZONE (used with ARD and ZD dampers) and M847D-VENT (used with EARD
dampers) actuators have a24 Vac, 50/60 cycle, .32A motor. The ARD and ZD
rewired to terminals, M1 and M6 for power closed/spring return open, with an
option for M4 wire to power LED light only. The ARD and ZD are spring-open
dampers that requires24V to M1 and M6 to power the damper closed. The EARD is
a spring-closed vent damper that requires 24V to the VENT terminals to power
the damper open. When power is removed from the motor, the damper springs back
to its normally open or normally closed position.
SPECIFICATIONS
Electrical Rating: 24 Vac 60 Hz 0.32 Amp., 8 VA
Electrical Connection: Tool-Less insertion of 18-22 AWG Solid Wire.
Nominal Angular Rotation: 90° (max. 105°)
Torque: 60in. oz (.423 Nm)
Nominal Motor Timing: ( @ 25° C ambient)
Energized at rated load – 30 seconds.
De-energized (spring return) – 10 seconds.
Ambient Temperature Rating: 5 to 60° C (+40 to 140° F)
The direction of Shaft Rotation: clockwise, when energized and viewed
from the base or shaft end.
Mounting Means direct connection to the damper shaft.
Mounting Position: Multi-poise.
Dimensions: See Fig. 1.
INSTALLATION AND CHECKOUT
CAUTION
- Read these instructions carefully. Failure to follow them could cause a hazardous condition.
- Disconnect power supply before the beginning of installation and wiring of control to prevent electrical shock or equipment damage.3. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.
- All wiring must comply with local electrical codes, ordinances, and regulations.
- The installer must be a trained, experienced service technician.
- After installation is complete, check out the product operation as provided in these instructions.
WARNING
- DO NOT install this actuator on a flue damper.
- DO NOT attempt to rotate the actuator by turning the connection coupling or the damper shaft when it is connected to the actuator or damage to the gear train may occur.
REPLACING M847D-ZONE ON AN ARD ZONE DAMPER
- Disconnect the motor wiring.
- Using a 1/8 in. hex wrench to loosen the motor coupling from the blade shaft, remove the existing motor assembly.
- Observe that the damper blades are in the normal, spring open or spring closed position.
- Place the new motor onto the shaft and tighten the coupling.
- Reconnect the motor wiring.
OLDER-STYLE ARD & ZD (7/16” DIA. COUPLING STYLE DAMPERS)
Most versions of ARD and ZD dampers will work with the new M847D-ZONE
actuator. Some older ARD and ZD dampers have a different shaft diameter and
the new actuator will not fit. Resideo no longer offers shaft adaptors for
these models. If the actuator has failed, replace the damper.
REPLACING M847D-ZONE ON A ZD DAMPER
- Disconnect the motor wiring.
- Using a 3/16 in. hex wrench to loosen the Allen screw located above the faceplate at the motor coupling.
- Remove the existing motor.
- Observe that the damper blades are in the open position with the setscrew pointing toward the damper label.
- Attach the new motor to the coupling. Make sure that the standoff on the motor is positioned in the grommet on the faceplate.
- Tighten the set screw.
- Reconnect the motor wiring.
Wiring
See Fig. 3 for typical wiring hook-ups of the M847D.
NOTE: WHEN INSTALLING ON OLDER MASTER TROLL BOARDS SUCH AS THE MARK V,
JUMPER M2-M5 ON THE PANEL.
M37925
Fig. 3. Typical M847D-ZONE Hookup.
CHECKOUT
After completing the installation, check that the equipment operates correctly as follows:
- When 24 Vac is applied to M1 & M6 terminals on M847D-ZONE or VENT terminals on M847D-VENT, the motor powers to the closed or open position.
- When power is removed, the motor releases and the spring returns to the normal position.
If full opening and closing are not achieved, check the lower adjustment lever is to the extreme left and the upper lever is to the extreme right. See Fig. 5 (Air Flow Adjustments).
Air Flow Adjustments
NOTE: The following describes the airflow adjustment position available with the actuator installed in the power closed mode for the M847D-Zone and power open for the M847D-Vent actuators.
Table 1. Air Flow Adjustment.
| Range Stop Setting | Bleed Rate• |
|---|---|
| 0 | 0 |
| 1 | 20% |
| 2 | 30% |
| 3 | 50% |
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
www.resideo.com
33-00038—03 M.S. Rev. 08-21 | Printed in the United States
© 2020 Resideo Technologies, Inc. All rights reserved.
The Honeywell Home trademark is used under license from Honeywell
International, Inc. This product is manufactured by Resideo Technologies, Inc.
and its affiliates.
FAQS
Q: How is the actuator mounted?****
A: The actuator is directly connected to the damper shaft and can be mounted in a multi-poise position.
Q: What is the ambient temperature rating of the actuator?****
A: The actuator has an ambient temperature rating of 5 to 60° C (+40 to 140° F).
Q: What is the torque of the actuator?****
A: The actuator has a torque of 60in. oz (.423 Nm).
Q: What is the nominal angular rotation of the actuator?****
A: The actuator has a nominal angular rotation of 90° (max. 105°).
Q: How is the actuator connected electrically?****
A: The actuator allows tool-less insertion of 18-22 AWG solid wire for electrical connection.
Q: What are the electrical specifications of the actuator?****
A: The actuator has an electrical rating of 24 Vac 60 Hz 0.32 Amp, 8 VA.
Q: What is the Honeywell TrueZone Direct Drive Damper Actuator used for?****
A: The Honeywell TrueZone Direct Drive Damper Actuator is used to operate zone or vent dampers in order to control airflow in ducts.
Q: How should the actuator be replaced on a ZD Damper?****
A: To replace the actuator on a ZD Damper, disconnect the motor wiring, loosen the Allen screw located above the faceplate at the motor coupling using a 3/16 in. hex wrench, remove the existing motor, attach the new motor to the coupling ensuring the standoff is positioned in the grommet on the faceplate, tighten the set screw, and reconnect the motor wiring.
Q: Can the actuator be replaced on an older-style ARD or ZD damper?****
A: Most versions of ARD and ZD dampers will work with the new actuator, but some older models may have a different shaft diameter. If the actuator has failed, it is recommended to replace the damper.
Q: How should the actuator be replaced on an ARD Zone Damper?****
A: To replace the actuator on an ARD Zone Damper, disconnect the motor wiring, loosen the motor coupling from the blade shaft using a 1/8 in. hex wrench, remove the existing motor assembly, place the new motor onto the shaft and tighten the coupling, and reconnect the motor wiring.
Q: Can the actuator be installed on a flue damper?****
A: No, the actuator should not be installed on a flue damper.
Q: What precautions should be taken during installation?****
A: It is important to read and follow the installation instructions carefully, disconnect the power supply before installation, check the product ratings for suitability, comply with local electrical codes, and have a trained service technician perform the installation.
Q: Where can I find more information or support for the Honeywell TrueZone Direct Drive Damper Actuator?****
A: For more information or support, you can contact Resideo Technologies, Inc. at 1-800-468-1502 or visit their website at www.resideo.com.
Q: What should I do if full opening and closing are not achieved?****
A: If full opening and closing are not achieved, check that the lower adjustment lever is to the extreme left and the upper lever is to the extreme right. Refer to Figure 5 for air flow adjustments.
Q: How can I check if the actuator is operating correctly after installation?****
A: After installation, you can check that the equipment operates correctly by applying 24 Vac to the appropriate terminals (M1 & M6 for M847D-ZONE or VENT terminals for M847D-VENT). The motor should power to the closed or open position when voltage is applied and release when power is removed.
Q: Are there any specific wiring instructions for the actuator?****
A: Refer to Figure 3 for typical wiring hook-ups of the actuator. Note that when installing on older master troll boards such as the Mark V, jumper M2-M5 on the panel.
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