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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The motors accept a current or voltage signal from an electronic controller to position a damper or valve at any point between open and closed. Pneumatic Receiver Ctrlr Dual Prop. 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. Heres another question then, what acctuators does everyone else use for things such as port valve motors?

I do not honeyeell the pots the manual talks about on it. Terms Of Use Privacy Statement. I am j7284 that an “industrial” control motor has such poor performace. The 4 enhanced motor m2784 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.

BC’s support response was to replace the motor with a slower motor.


Above replacements may require additional mounting accessories. I am going to switch the motors out.

We have one of their higher accuracy ones now that will be installed next week. There are 4 ‘enhanced’ Modutrol IV models, all of which are mA proportional motors, each of which has more than 55 repositions.

Astounding, isn’t it, that a primary performance characteristic of an actuator motor, output resolution of the actuator shaft, is a closely guarded secret? Integral junction box provides NEMA 3 weather protection.

This has helped, but not as much as a working valve would! The oven lined out nicely with a slower motor and the motor did not hunt. I suspect the nmber of repositions steps doesn’t matter a heck of lot when the motor drives a damper in an air handler.

Integral auxiliary switches are available factory mounted, or can be field added. There seems to be some kind of deadband effecting the repsone of the valve.

Let’s assume the actuator is a recent model Modutrol IV, model M The pdf scanned, not text, believe it or not is here: It specs the reposition resolution. Email m72884 a Friend.

Usually Ships in 1 – 3 Weeks Availability: Is this item right for you? So bear in mind there’s still some question on that value. Motor and circuitry operate from 24 Vac.

Honeywell Modulating Motor M 7284 C 1000

The original link I gave was a scanned pdf, whose document number has no other hits on the web. You must have JavaScript enabled in your browser to utilize the functionality of this website. I did it, it worked. Reviews Not honeywwell yet, be the first to write one!


deadband on a HW modutrol motor [Text] – – Interactive Q & A

It took 3 calls to find someone willing to research this. The complaint was hunting, where the controller couldn’t maintain setpoint on a belt oven. Safe and secure checkout at Controls Central. I have seen that with pneumatic actuators. Is it only the Q model that honetwell this?

Modutrol IV™ Series 2 Motors | Industrial Controls

Cross Reference Honeywell, Inc. Now, it could be 2. Quick-connect terminals are standard; screw terminal adapter is available.

Motors are designed for either normally open or normally closed valves and dampers. There is some interplay between a deadband adjustment in the motor and its resolution, but I can’t recall the details.

The ideal cotnrol position was in between motor reposition-steps. Request Quote Live Chat. The result of his research is that all except 4 models and all on-off motors have 55 “repositions”, or steps of resolution. Modutrol IV Motor V 90 mm7284 stroke 30 sec Wow dan, what great info!

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