s M, M, M, M, and M are . Your local Honeywell Home and Building Control Sales Office (check white pages of your phone directory). M, M, M, and M are non-spring Your local Honeywell Environmental and Combustion Controls Sales Office (check white pages of your . Find great deals for 1pc Honeywell M Mc Modutrol IV Motor. Shop with confidence on eBay!.

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Above replacements may require additional mounting accessories. Integral junction box provides NEMA 3 weather protection. It is a new modutrol tho.

Honeywell, Inc. MA M; M; M; M Modutrol IV Motors at Controls Central

I do not honehwell the model off hand, ill get it tomorrow in the shop. Email to a Friend. Maybe such a device exists that I’m unaware of – anybody come across one? The 4 enhanced motor models are MC MC MQ MQ While 55 repositions is adequate for typical damper positioning, it is too coarse for serious proportional control of firing rate motors. While investigating a “poor control” complaint, I discovered that Barber Colman motors this was 20 years ago used the same die cast housing, same electric motor, same slidewire, but just changed the gear train.

The complaint was hunting, where the controller couldn’t maintain setpoint on a belt oven. I have a new M in my office and will see how it reacts with different VR3 settings. It isn’t clear how many more repositions or how much more step resolution ‘enhanced’ means. I did it, it worked. Heres another question goneywell, what acctuators does everyone else use for things such as port valve motors? Double click on above image to view full picture.

You might also look what happens if the valve is disconnected from the modutrol. I found a guy at the Honeywell support numberwho had to do 10 minutes of research to find out how many steps of resolution any Modutrol motor would provide not exactly public information. I have seen that with pneumatic actuators. Product Data Sheet Coming Soon.


This has helped, but not as much as a working valve would! JPG But it’s given its cost, a can only be justified where the torque and resolution performance is required, like ID or FD control dampers on boilers. Motor and circuitry operate from 24 Vac.

Honeywell M7284Q 1106/U Modulating Motor

Motors are designed for either normally open or normally closed valves and dampers. The result of his research is that all hnoeywell 4 models and all on-off motors have 55 “repositions”, or steps of resolution. Request Quote Live Chat. All models have auxiliary switch cams. I’ll try my Honeywell contact honewell Monday honneywell see if he can shed any light on your problem, or if he knows who can.

Backing off the tuning constants to slug the controller response down made no difference, the PV was clearly, to the eye, tracking the motor position and the desired motor position could not be achieved. Here’s the manual statement: Images and descriptions may not accurately represent the product.

I suspect the nmber of repositions steps doesn’t matter a heck of lot when the motor drives a damper in an air handler. Ive placed some calls to our honeywell people, but I cant seem to find anyone at honeywell that actually knows.

There seems to be some kind of deadband honfywell the repsone of the valve. The current web page for the Mx motors is http: Isnt user generated content great! Hey all, ive noticed some odd behavior of a honeywell modutrol motor actuating a port valve.


Single Phase Honeywell Modutrol Motor, Model: M, Rs /number | ID:

The PV oscillation synched with the motor hunting. The oven lined out nicely with a slower motor and the motor did not hunt. This class of actuator can be had with Modbus, as can Rotork. Integral auxiliary switches are available factory mounted, or can be field added. The Honeywell text, as usual, is not clear, but the fact that the adjustment setting affects movements in the “opposite direction from the most recent change” seems to be what is happening with regard to your applied changes.

Ill let everyone know how much more accurate it is. I tend to go for Kromschroder GT motors, GT31 usually and GT50 for bigger valves, they do a good range of different supply voltages and travel times and the end of stroke and signalling limit switches are easy to adjust. I was never able to clarify why the apparent fewer reposition steps.

Honeywell has a higher torque motor, the Herculine series, in a different class. You must have JavaScript enabled in your browser to utilize the functionality of this website. The original link I gave was a scanned pdf, whose document number has no other hits on the web.

Pneumatic Receiver Ctrlr Dual Prop. Cross Reference Honeywell, Inc. You can also find answers to some common questions on our FAQ page. Order Quantity Unit Price 1 – 5 Call for pricing.

It took 3 calls to find someone willing to research this. But I’ve seen first hand the effect of an acuator that can not resolve sufficient positions to control a gas valve.