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  1. Thread: Modine MUA

    by mirfgtech
    Replies
    42
    Views
    1,913

    Just curious, on the Pots, what is the Wattage on...

    Just curious, on the Pots, what is the Wattage on these? What material..?? Carbon, Wire Wound, etc...?? 10K or 15 K ohm Pots..??
  2. Thread: Modine MUA

    by mirfgtech
    Replies
    42
    Views
    1,913

    Well, I am in Michigan and Maxitrol is just down...

    Well, I am in Michigan and Maxitrol is just down state from me. Once they finally responded, this guy was very forthcoming, answered all questions, and sent me a bunch of data (PDF Files). I didn't...
  3. Thread: Modine MUA

    by mirfgtech
    Replies
    42
    Views
    1,913

    UPDATE - SUN Mar 02 Thanks for all the replies...

    UPDATE - SUN Mar 02

    Thanks for all the replies and input.

    Well, never did receive any information from Modine nor the Modine Distributor in Grand Rapids, MI.

    After a week, I did receive data...
  4. Thread: Modine MUA

    by mirfgtech
    Replies
    42
    Views
    1,913

    Well, as of Mon the 24th at 9:00AM, NO RESPONSE...

    Well, as of Mon the 24th at 9:00AM, NO RESPONSE from either company.

    The link you referenced for me does NOT work for me on a standard PC.

    I am aware of the 8 page Maxitrol spec sheet and had...
  5. Thread: Modine MUA

    by mirfgtech
    Replies
    42
    Views
    1,913

    It is using the Maxitrol A1010A Amplifer. It...

    It is using the Maxitrol A1010A Amplifer.

    It is either High Fire or nothing. Voltage at the Mod Valve goes from 0.0 to 2.0VDC then anything over, the Valve drops out.
  6. Thread: Modine MUA

    by mirfgtech
    Replies
    42
    Views
    1,913

    As of 4:45PM.....Still no response from either ...

    As of 4:45PM.....Still no response from either

    The MUA unit has these Maxitrol Components: MR510 Mod Gas Valve, TD121 Select Sw (Rheostat), & TS121 Duct Sensor.

    (A) What is the Coil Resistance...
  7. Thread: Modine MUA

    by mirfgtech
    Replies
    42
    Views
    1,913

    Modine MUA

    I am working on a Modine Make Up Air unit. It incorporates a Maxitrol modulating gas system.

    I have contacted Modine for Tech assistance. Much to my surprise, I was bounced back to a local Sales...
  8. Thread: Grasslin

    by mirfgtech
    Replies
    20
    Views
    1,352

    Correct me if I am wrong. The only difference I...

    Correct me if I am wrong. The only difference I can see between the Paragon & the Grasslin is: (A) Terminal labeling and (B) The Grasslin has 40A contact ratings while the Paragon has only 30A...
  9. Thread: Grasslin

    by mirfgtech
    Replies
    20
    Views
    1,352

    Grasslin

    I have been using Grasslin timers for about 7 years now. I like them in several aspects.

    Recently, they went to model DTAV-40 (automatic voltage sensing) and it seems to be that there is some...
  10. Thread: Carrier 580C

    by mirfgtech
    Replies
    1
    Views
    206

    Carrier 580C

    I am working on a Carrier RTU - 580CPV060115ABAR, circa 1991. I am in need of Wiring Diagram 50DK503271D.

    Anyone out there happen to have one that they could forward to me.
  11. Replies
    2
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    277

    I got it. Thank you very much. Seems someone...

    I got it. Thank you very much.

    Seems someone put a pressure switch in from "others" and this explains why it was just dangling.
  12. Replies
    2
    Views
    277

    Amana Pressure Sw

    I just picked up this account, and they have a Amana Res'l Gas Furnace. It is model GUC070X40B, circa 1997.

    The pressure switch was just dangling, left of the main burner box.

    Does anyone know...
  13. Replies
    4
    Views
    294

    I got it. THANK YOU

    I got it. THANK YOU
  14. Replies
    4
    Views
    294

    Bryant RTU 58A Series

    Anyone know where I could get a Parts Manual for a Bryant RTU - M/N: 584AN018040AA Circa - 1992..???
  15. Replies
    5
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    334

    I suspected the same. I was wondering if an...

    I suspected the same. I was wondering if an analog meter would work better, in that, one wouldn't have the scattered display from a DVM.
  16. Replies
    5
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    334

    So, as long as the Ignitor is connected, one can...

    So, as long as the Ignitor is connected, one can measure the 80VAC in a usual manner ??
  17. Replies
    5
    Views
    334

    White-Rodgers IFC

    Working on a Res'l Gas Furnace that has a W/R 50A62 IFC. The HSI is a W/R 768A series nitride ignitor. This HSI is a 80VAC ignitor.

    In trying to troubleshoot this, I called W/R and they told me...
  18. Thread: Carrier

    by mirfgtech
    Replies
    5
    Views
    454

    YUP...that is the problem:whistle:

    YUP...that is the problem:whistle:
  19. Thread: Carrier

    by mirfgtech
    Replies
    5
    Views
    454

    LOL, I have talked with Dave Singer a few times....

    LOL, I have talked with Dave Singer a few times. Nice guy and knowledgeable. It is their parts dept is where the problem lies..... sigh
  20. Thread: Carrier

    by mirfgtech
    Replies
    5
    Views
    454

    Carrier

    I am an independent Service Contractor. In my geographic area, there are a few Carrier Products that I occasionally have to service. When I call the Carrier Distributor for my State (Michigan), it...
  21. Replies
    18
    Views
    781

    RTU Insulation

    Can some one recommend some 1/2" or 3/4" Foil Face fiberglass insulation product that can be used to patch in deteriorated, blown apart, or missing insulation found in a typical Roof Top Unit.
    ...
  22. Thread: York RTU

    by mirfgtech
    Replies
    5
    Views
    387

    That is the same thing I am finding.

    That is the same thing I am finding.
  23. Thread: York RTU

    by mirfgtech
    Replies
    5
    Views
    387

    GT1980: I did contact York.....3 weeks and...

    GT1980: I did contact York.....3 weeks and waiting

    HVAC Wiz 79 - I got it - Thank you
  24. Thread: York RTU

    by mirfgtech
    Replies
    5
    Views
    387

    York RTU

    Does anyone have a Wiring Diagram for a York RTU - D8CG 036N07925A ?
  25. Thread: Cleaning

    by mirfgtech
    Replies
    24
    Views
    1,623

    Cleaning

    I have the luxury of having two Tecumseh Condensing Units [< 1/2 HP] in my shop. They both suffer from an extensive case of "kitchen grease" contamination. I do realize, that they can be power...
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