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  1. Thread: PM's

    by tonydykes55
    Replies
    16
    Views
    964

    excellent info. the cold weather is just...

    excellent info. the cold weather is just beginning this year, and I want to be thorough and give my customers there moneys worth. So exactly what is involved in a combustion analysis? Just a visual...
  2. Thread: PM's

    by tonydykes55
    Replies
    16
    Views
    964

    PM's

    Sent my techs on a PM call for a furnace (no problems - she just wants it serviced). Sent my guys out. Homeowner called back and said they didn't do anything. I told her I was coming out personally...
  3. Replies
    14
    Views
    1,159

    a good manometer

    I'm looking at a fieldpiece sdmn5 manometer. Is there any need to spend more? Does this lack any features that might be useful to me?
  4. Replies
    21
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    1,189

    No kink in the lines (package unit). Piston. It...

    No kink in the lines (package unit). Piston. It was a warm day. Just checking the heat prior to the cold weather. Blower is good. I had cover off watching it the whole time. I've changed the...
  5. Replies
    21
    Views
    1,189

    heat pump issues

    Unit runs fine in cooling mode, but shuts down on high pressure in heat pump mode.
    The unit has been running fine all summer. Pressures are normal in cooling mode.
    No one has messed with the charge...
  6. Thread: Puzzled

    by tonydykes55
    Replies
    22
    Views
    1,486

    just called her back and told her not to touch it...

    just called her back and told her not to touch it before I got there - but it is blowing cold again already - this is what I'm dealing with. might not do it again for a week. I don't think she's...
  7. Thread: Puzzled

    by tonydykes55
    Replies
    22
    Views
    1,486

    Sat 9a.m. Just got the call. headed back out...

    Sat 9a.m. Just got the call. headed back out shortly. heating up inside. condenser fan is running. ?? I'll let you all know what I found. but I can tell you when I get there all will be normal - as...
  8. Thread: Puzzled

    by tonydykes55
    Replies
    22
    Views
    1,486

    Not a heat pump. I don't know who put these...

    Not a heat pump. I don't know who put these systems in. From the ones I've serviced this past summer, this is the only 410A condenser. All the other mobile homes have very old units, but they are...
  9. Thread: Puzzled

    by tonydykes55
    Replies
    22
    Views
    1,486

    This is a new customer. He has several mobile...

    This is a new customer. He has several mobile homes on his land - down a dead end road. He's a new customer - owns a large daycare in town.
    I've worked on three or four of these mobile home units...
  10. Replies
    8
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    449

    Had a long day, just got in. I have a different...

    Had a long day, just got in. I have a different compressor coming. Embraco FF12HBX. R12/134a. It has a valve with 3/8 suction. It will bolt right up.
    The box has been down a few weeks. I figure a...
  11. Replies
    8
    Views
    449

    not yet. I haven't done anything yet.

    not yet. I haven't done anything yet.
  12. Thread: Puzzled

    by tonydykes55
    Replies
    22
    Views
    1,486

    I didn't write down any figures. Weighed in the...

    I didn't write down any figures. Weighed in the charge. Pressures 115 and 310. 10* SH. SC ?
    I feel dumb because I haven't look close at the AH. Good air flow. Didn't see a need to look at it up to...
  13. Replies
    8
    Views
    449

    Display Cooler

    model SC-CDS32E-6 serial 92-46114-12 R12 refrigerant. McCray Refrigeration Co.
    this has a copleland JRE1-0033-IAA compressor that's bad. It has a 3/8 suction and 1/4 discharge line.
    My...
  14. Thread: Puzzled

    by tonydykes55
    Replies
    22
    Views
    1,486

    Puzzled

    Was called out on a 4 ton split system - compressor shutting down about the same time every day. Tennant cuts it off for a while and it works fine till the next afternoon. Next day, I was there...
  15. Replies
    11
    Views
    497

    mismatched coils

    I have a customer who sent me a text tonight - he said that he replaced his three ton condenser with a 4 ton (I assume he still has a 3 ton air handler) - he was told he would have colder air. He...
  16. Replies
    7
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    476

    Ok. Are you saying that the reason some...

    Ok. Are you saying that the reason some compressors have horsepower ratings rather than BTU (tonnage) ratings is because one compressor, say CRN-5 can have different BTU ratings - depending on the...
  17. Replies
    7
    Views
    476

    Horsepower / BTU's

    I don't understand why some compressors are rated in tons/BTU's and others (freezers, coolers, etc) are rated in horsepower.
    Is there a difference in the compressors themselves?
  18. Thread: insulation

    by tonydykes55
    Replies
    2
    Views
    294

    insulation

    I'm relocating some supply ducts - they are between studs - in the wall cavity. Since they will be encased between studs and sheetrock, will they need insulation. The ones I'm replacing did not have...
  19. Replies
    0
    Views
    220

    heil quaker

    Can anyone help me determine the size of this unit.
    I think it's a 2 ton. The house is 1000 sq.ft.
    Heil Quaker condenser model CU325AOD1C.
    Compressor nameplate - model SRC4-0020-??
  20. Thread: pump down

    by tonydykes55
    Replies
    20
    Views
    1,426

    thanks, this has been very educational.

    thanks, this has been very educational.
  21. Thread: pump down

    by tonydykes55
    Replies
    20
    Views
    1,426

    I understand. So then, in an typical residential...

    I understand. So then, in an typical residential split system for example, would I be correct in thinking that since the indoor ambient is typically 68 -74 degress, for example, there is not as much...
  22. Thread: pump down

    by tonydykes55
    Replies
    20
    Views
    1,426

    I see. When you say "flood back from the...

    I see. When you say "flood back from the evaporator", are you saying that without a LL solenoid, in the off cycle, as a system equalizes, liquid from the condenser migrates to the evap? And then...
  23. Thread: pump down

    by tonydykes55
    Replies
    20
    Views
    1,426

    pump down

    Why does freezers use a LL solenoid / pump down to kill the compressor
    via a low pressure switch rather than simply put the t-stat in series with the coil ?
    I know there is a logical reason.
  24. Replies
    2
    Views
    348

    freezer vs cooler controls

    What specifically is different in a freezer and cooler controls?
    Is it mostly in the charge / pressures?
    Defrost circuit?
    TXV?
  25. Replies
    10
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    604

    People are fanning themselves, because they are...

    People are fanning themselves, because they are hot in the summer months.

    Since there are many live performances, there is a heavy lighting load on the stage - Many lights. Some vendors
    bring...
  26. Replies
    10
    Views
    604

    I will have to measure return grates, they are...

    I will have to measure return grates, they are appx. 2 1/2 to 3 ft. wide X 3 1/2 to 4 ft. tall. (not sure ???)
    Could be 2' X 3' ??? I will let you know.
    I don't think there is any make up air....
  27. Replies
    10
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    604

    This theater has shows via a pull down screen....

    This theater has shows via a pull down screen. However it has a large stage - mostly live performances. No supply air on the stage. Maybe he (the owner) made a mistake by blocking off the high...
  28. Replies
    10
    Views
    604

    Supplemental Heat in Theater

    I have a customer who owns a very old theater with 2 - 30 ton rooftops. Old units. Historic building.
    Massive return air plenums - Air Handlers in the attic - one on each side of the stage....
  29. Replies
    30
    Views
    5,164

    I know this thread is long overdue. I have not...

    I know this thread is long overdue. I have not been back on this site for a few months. I was to the point of evacuating, changing the txv, and weighing in a new charge -
    as a last ditch effort....
  30. Replies
    30
    Views
    5,164

    I have not solved the problem yet. I have been...

    I have not solved the problem yet. I have been overloaded with work. Temp is holding at 20. I went back Friday morning and adjusted the charge. The suction was 46. I managed to get it down to 36 and...
  31. Replies
    30
    Views
    5,164

    I found a schematic. Very old I managed to piece...

    I found a schematic. Very old I managed to piece it together and make a copy. It's pretty legible, but it does not show
    the LL solenoid or indoor stat. I've seen some that have the indoor stat...
  32. Replies
    30
    Views
    5,164

    walk in freezer controls

    I am still learning about the controls on walk in freezers and coolers. I'm servicing one that is very old.
    the evap sometimes freezes. I have been in my school books trying to understand the...
  33. Replies
    10
    Views
    963

    Lowes doesn't sell without install. Population...

    Lowes doesn't sell without install. Population about 50K +. I'm researching this. Never heard of ducane or lennex. I will check it out. That's Lennex, not Lennox?
  34. Replies
    10
    Views
    963

    Monopolies on name Brands

    We have a local Service Company/Dealer. They sell & install Trane units. Of course they service all brands since they are a "Service Company". They do not sell to anyone but their customers/clients....
  35. Replies
    18
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    1,507

    correction, I meant "open the valves" not the...

    correction, I meant "open the valves" not the gages
  36. Replies
    18
    Views
    1,507

    If it's very slow and hard to find, I pressurize...

    If it's very slow and hard to find, I pressurize both coils and then close both valves. When I come back I can tell if the evap has a leak. then I open valves and pressure will either drop or rise,...
  37. Replies
    15
    Views
    1,828

    tank has a valve on the bottom and when I...

    tank has a valve on the bottom and when I depressed it - nothing - no water, no air.
  38. Replies
    15
    Views
    1,828

    I see. simple enough. I am headed out to check it...

    I see. simple enough. I am headed out to check it out. ill repost later
  39. Replies
    15
    Views
    1,828

    exactly what is the purpose of the expansion tank

    exactly what is the purpose of the expansion tank
  40. Replies
    15
    Views
    1,828

    ok i see. its metal - about 2 gallon tank. seems...

    ok i see. its metal - about 2 gallon tank. seems odd - one unit had so much damage and the one next to it wasn't damaged. could it be that one was running and the other was not?
  41. Replies
    15
    Views
    1,828

    yes it has prv - 150 deg F. I had the homeowner...

    yes it has prv - 150 deg F. I had the homeowner turn main water valve off before I got there. he said boiler was making funny noise and had some dishcharge from prv only after he turned off water...
  42. Replies
    15
    Views
    1,828

    Yes it does have an expansion tank between the...

    Yes it does have an expansion tank between the boilers. And I will check to see if the air was running. but this happened late in the afternoon. outside temps were in the 50's.
    And I pulled the...
  43. Replies
    15
    Views
    1,828

    Lennox Complete Heat CB31MV-41-1P

    This house has 5 split systems - identical. they all are water heated - straight cooling - no electric heat strips. They utilize 2 boilers - Lennox Complete Heat boilers - mod. # HM30-150-5. The...
  44. Replies
    25
    Views
    2,335

    sorry I had to leave for a minute. I bet you are...

    sorry I had to leave for a minute. I bet you are right - not piercing. I'll check first thing. thanks to all.
  45. Replies
    25
    Views
    2,335

    ok. First I can't check SH or SC - system needs...

    ok. First I can't check SH or SC - system needs 13 lbs r22. I can only get it to "gravity fill" 6 lbs after pulling vac. Nameplate charge 13.4 lbs. That is what I pulled out before I swapped...
  46. Replies
    25
    Views
    2,335

    I pulled the connector off the RV solenoid. I can...

    I pulled the connector off the RV solenoid. I can hear it energizing. the coil is good.
  47. Replies
    25
    Views
    2,335

    compressor changeout

    Bryant 5 ton hp - compressor shorted, trips breaker. I installed warranty compressor today. Unit is 4 years old. Pulled deep vac - 13 lbs r22 on nameplate. It sucked up 6 lbs prior to start up. 70...
  48. Replies
    46
    Views
    4,254

    I see. I will keep you posted.

    I see. I will keep you posted.
  49. Replies
    46
    Views
    4,254

    Am I understanding correctly - if it's wired...

    Am I understanding correctly - if it's wired through y2. Then its unloaded on start up. So I should feed the solenoid through n.c. contacts, the coil being wired through a delay on make, via Y2....
  50. Replies
    46
    Views
    4,254

    Electric. Has solenoid. So I will follow through...

    Electric. Has solenoid. So I will follow through and finish the job. Owner of the business is one of my biggest customers. He's been in this building for over a year (one of three furniture stores,...
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