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Power Open / Power Close Damper Actuator
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MANUALS (1)
Description
Key Features:
- Power-open, power-close damper actuator
- Honeywell Home MSTN series
- Model-specific replacement for compatible zone dampers
Compatibility & Applications:
- For Honeywell Home dampers that specify MSTN in parts lists.
- Used in forced-air zoning to control airflow to individual zones.
Installation & Operation Notes:
- Follow damper wiring diagram for power and control connections.
- Set linkage to the damper shaft as shown in the installer guide and verify full travel in both directions.
Maintenance & Troubleshooting:
- If damper does not travel fully, check linkage alignment, voltage, and control signal.
- Replace worn linkages to maintain smooth travel.
Specs
| Product Type: | Miscellaneous |
|---|---|
| Model: | AOBD |
| Application: | Air Quality |
Questions?
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Product Reviews
Most Liked Positive Review
It's working. Shipped in closed position
Most Liked Negative Review
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Honeywell MSTN Damper Actuator Review
Motor is a well built and works great
It works same as one it replaced
Exact match
Part was an exact match. Would order it again, but I hope I
Yes will buy from you again
Defective product
Product As Expected
Product worked as expected.
Satisfied Homeowner
Perfect match for an old part!
Product Q&A
5 QuestionsQ: will this replace (and fit perfectly) a Zonefirst EWC MST?
Asked by Greg 11 years ago
Add your answer
Not familiar with a Zonefirst. The unit shown works on 24VAC on my system, and drives a vain type damper open/close. If it looks exactly like the one in your system, it will probably work. If not, better check with the manufacture of the system. Sorry can't be more specific. ova
Greetings, The Trol-A-Temp and Zonefirst switches are the same switch but with a different brand name. They perform the same function and should be interchangeable. Best regards and good luck. Wayne
Q: What is the best thermostat to use with this damper motor MSTN?
Asked by Steve 12 years ago
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Verified Reply- Supplyhouse Staffany 24 volt thermostat will work fine.
Greetings. The damper motors are controlled by a Zone Controller, such as the Honeywell HZ311 TrueZONE Panel. The panel controls the 18-30 VAC to drive the damper motor open or closed as required. The Zone Controller also has outputs to control the heating and cooling systems so that when any of the thermostats request heat or cool, the panel will response by energizing the system plus opening at least one of the zones and closing any zones that do not need heat or cool. The input to the Zone Controller is a Thermostat, one for each zone. Any thermostat should do, just make sure that the Thermostat and Zone Panel are compatible with the heating and cooling system installed. I hope this helps.
Q: What size is this actuator? Will it replace a 30 year old Trol-A-Temp actuator? Don't know what the Mod# is of the old one.
Asked by Gerry 13 years ago
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I have used the ZoneFirst model MST 24 volt two position motor to replace my Trol-A-Temp motors. Is a direct replacement. Original Trol-A-Temp motors were from 1973 vintage control system/dampers. Seems to work well after several years. Perhaps Honeywell bought them out. But, both Honeywell and ZoneFirst motors still show up on Amazon web site!
I don't know about 30 year old actuator, but they work on my 20 year old actuator.
The actuator is a direct replacement for the Trol-A-Temp actuators for a wide variety of the damper sizes. Just make sure that your system supports the Power-Open and Power-Close feature that most of the older actuators used.
Q: Will this replace the EWC MAN-RD Damper motor?
Asked by GP 16 years ago
Add your answer
Verified Reply- PexSupply StaffYes this can be used as a replacement for that model.
Q: Will this replace the EWC controls damper I currently have? ma/mp5?
Asked by TJ 16 years ago
Add your answer
Verified Reply- PexSupply StaffYes this will replace the MAN damper motor made by EWC.