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  1. Thread: Fire detector HVAC

    by cfe
    Replies
    23
    Views
    622

    is this smoke detector always in the blower...

    is this smoke detector always in the blower vicinity ?

    have had 2 call ICE MUA for this same issue, 2 years old apt bldg. reset it and it good for 3 weeks or so.
    did't see any fire /smoke...
  2. 75 VA. At transformer 27 v and 24 at solenoids

    75 VA.
    At transformer 27 v and 24 at solenoids
  3. It does have all the necessary stages delays From...

    It does have all the necessary stages delays From the board. It just when runs at full capacity it's tripped the transformer overload.
  4. can wire size effect the amp draw and tripped overload?

    installing carrier condenser 40 ton on ground level and runs liquid line solenoid coils 24 volt wire to AHU 2nd floor approx 65 ft away.

    using standard 5 wire thermostat from condenser unit to...
  5. Thread: What am I missing?

    by cfe
    Replies
    29
    Views
    1,124

    What is this indicating?

    What is this indicating?
  6. Thread: TXV tonnage Help

    by cfe
    Replies
    7
    Views
    309

    usually there is number on the txv body. like...

    usually there is number on the txv body. like Sporlan OVE-30 = 30 tons.
  7. Thread: What am I missing?

    by cfe
    Replies
    29
    Views
    1,124

    is this new R-22 ?

    is this new R-22 ?
  8. Replies
    1
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    223

    as i remember Lennox L series has discharge and...

    as i remember Lennox L series has discharge and liquid service port and both have schrader. if not T port connector will do.
    had changed encapsulated fan cycling for those lennox L series and there...
  9. Replies
    28
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    967

    thank for sharing this , never pay attention that...

    thank for sharing this , never pay attention that this product available. saw it at supply house today. cheap alternative than new motor.
  10. Replies
    28
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    967

    left wire harness unplug when left site. back on...

    left wire harness unplug when left site. back on site today and plug it back in, surprisingly the rotation corrected it self.

    turn it on and off multiple time it always correct rotation. can see...
  11. Replies
    28
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    967

    Did all the above. The only thing that I didn't...

    Did all the above. The only thing that I didn't try is to switch Tha capacitor with the other good one.
  12. Replies
    28
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    967

    YCD600A5LJ2B4ND10.

    YCD600A5LJ2B4ND10.
  13. Replies
    28
    Views
    967

    UCP board voyager 3. couldn't figure it out how...

    UCP board voyager 3.
    couldn't figure it out how to insert a picture to this post with samsung S5.
  14. Replies
    28
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    967

    I'm trying to understand how could dirty coil...

    I'm trying to understand how could dirty coil contribute to fan rotation. Specially on bigger blades.

    This one is the original motor.
    if looking at it briefly I would assume its good and easy...
  15. Replies
    28
    Views
    967

    Was off site when started this post, should have...

    Was off site when started this post, should have switched the cap while on site.
    the company I work for don't do any truck stock at all.
    did tested cap with multimeter and getting 25 uf as spec. ...
  16. Replies
    28
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    967

    Replaced burnt UPC board on this Trane unit, At...

    Replaced burnt UPC board on this Trane unit, At this point not sure if this been running back ward like this before or this is a new problem.

    2 ODF relay for this unit .
    1 relay serving 2 fan...
  17. Replies
    28
    Views
    967

    Existing unit 3 compressors 4 condenser fans. ...

    Existing unit 3 compressors 4 condenser fans.
    All the fans and compressor in the same compartment.
  18. Replies
    28
    Views
    967

    my meter reading 25 UF as spec, so I don't...

    my meter reading 25 UF as spec, so I don't suspect that is my problem.

    I'll try new cap.
    I know when it started it must fight fan blade rotation created by velocity from other fan.
    This...
  19. Replies
    28
    Views
    967

    Yes, From terminal block to fuse - capacitor -fan...

    Yes, From terminal block to fuse - capacitor -fan harness.
    The other line is thru fan relay.
  20. Replies
    28
    Views
    967

    Condenser motor rotation problem 1 phase

    Working on Trane YCD600 4 condenser fans and 1 of them wrong rotation.

    575 v 1 phase none none reverseable.

    Switched run capacitor lead and l1 and l2 lead still no change.

    Switch...
  21. Replies
    23
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    952

    did it solve your problem with new TXV? i would...

    did it solve your problem with new TXV? i would go with adjustable one.
    I've had new Oem txv that having the same symptom.
  22. now tech support said the board is obsolete, can...

    now tech support said the board is obsolete, can be repaired for $10K. wow.
  23. YORK YPAL050 Optilogic stuck in self checking mode.

    could not recall full model#. waiting to hear back from tech support.

    Optilogic Control Center stuck in self checking mode .
    display shown

    Version A09
    Address 32
    Status No comm
    Startup OK...
  24. Replies
    19
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    3,621

    how do you test the IGV operation? is it thru the...

    how do you test the IGV operation? is it thru the I/0 connector and danfoss sofware on your computer ?
    i have a turbocor compressor # 2 that IGV only go up to 12 % . the ball bearing not even move...
  25. thank you . much appreciated.

    thank you . much appreciated.
  26. what is the tonnage of this copeland 6RK2-3500-TSE.

    need to change out the leaky TXV but could not tell what is the capacity.

    this green unit has no make and model. seems like its a custom made cooling unit with dual 6RK2-3500 Compressor.
    nothing...
  27. Replies
    19
    Views
    3,621

    what happen to the operation before repaired? did...

    what happen to the operation before repaired? did it not maintaining set point or else?
    we have thermal care chiller that using 2 turbocore compressor. so far is operate smoothly.
  28. Replies
    37
    Views
    1,414

    if the compressor capacity is almost the same, i...

    if the compressor capacity is almost the same, i think it should work good, not as new spec condition.
    this unit feel like walk in cooler temp .
  29. Replies
    37
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    1,414

    it just came across my mind that the BMS sensor...

    it just came across my mind that the BMS sensor is inside the blower compartment and it showing 35* in their monitor.

    this job is coming from our sales team that provided quoted job for compressor...
  30. Replies
    37
    Views
    1,414

    80 f after liquid dryer. return 73 supply right...

    80 f after liquid dryer.
    return 73 supply right after evap coil 35 degree
  31. Replies
    37
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    1,414

    if there is superheat there will be no liquid...

    if there is superheat there will be no liquid right? aside from high head pressure when ambient reach 80 or more.
    with 55 ambient and 230 head pressure and 73 return I think suction pressure...
  32. Replies
    37
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    1,414

    What they have done in the past is using garden...

    What they have done in the past is using garden hose and spray mist the condenser Coil. Sort of watering your grass at home When outdoor above 90* f.
    there is a lot of scale damaged on the fins.
    ...
  33. Replies
    37
    Views
    1,414

    The condition of the condenser Coil is bad....

    The condition of the condenser Coil is bad.
    deteriorated fins. This unit 30 + years old.
    I think that's 230 psi is considered OK
  34. Replies
    37
    Views
    1,414

    its R-22 . after compressor changed did weight in...

    its R-22 . after compressor changed did weight in 10.5 lbs as name plate.
    pressurized the cap tube from opposite direction just to clear anything there and flushed out oil.
  35. Replies
    37
    Views
    1,414

    compressor carrying the oil out as fast as it's...

    compressor carrying the oil out as fast as it's coming back.

    that really make sense in this case , i need to drain some oil. thanks
  36. Replies
    37
    Views
    1,414

    no head control on this carrier. it should...

    no head control on this carrier. it should economizing for sure.
  37. Replies
    37
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    1,414

    there is no evident of frost on all cap tube . ...

    there is no evident of frost on all cap tube .
    this unit runs like walk in cooler now. if its not because of anti ice switch it will iced up the compressor.

    checked blower speed rpm is well...
  38. Replies
    37
    Views
    1,414

    its 8 capillary tube with header. oil level full...

    its 8 capillary tube with header. oil level full at sight glass.
    during start up head pressure fluctuate up to 320 psi and back to 230 psi after a minute or so.

    i suspected the oil in evaporator...
  39. Replies
    37
    Views
    1,414

    too much oil lodging in evaporator coil?

    replaced compressor on old carrier unit COPELAND BRE2-0750-TFC-904 to ZR94KCE-TFE-950.
    the original compressor failed both suction and head pressure equalize and runs like that for 2 years. no...
  40. Replies
    7
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    2,233

    Have you find the culprit? I have similar case...

    Have you find the culprit?
    I have similar case where flame failure a few times a week.
  41. Replies
    6
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    748

    your theory are excellent, my problem is bad...

    your theory are excellent, my problem is bad connection at harness connector to hi limit.
    with clean 24V it sparking perfect.

    many thanks Mr.
  42. Replies
    6
    Views
    748

    Did installed ground wire from electrode screw to...

    Did installed ground wire from electrode screw to clean solid ground .
    No spark at all. I can see the electrode if it does sparking.
  43. Replies
    6
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    748

    No common just ground terminal. Yes travel...

    No common just ground terminal.
    Yes travel through series of safety and ending powered the module.
    Did jump the rollout switch and pressure switch but no effect.
    I'll try it with clean 24v...
  44. Replies
    6
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    748

    Igniter will not spark issue Lennox LGA120

    LENNOX RTU M #LGA120SH1J S # 5697H03406

    having issue with igniter won't spark. LED BLINK 6 HARWARE FAULT DETECTED.
    DIRECT SPARK IGNITER
    Ignition module terminal MV/POWER/FS/GROUND.
    ...
  45. Replies
    13
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    1,276

    [QUOTE=BBeerme;18929931]Can you get tonnage off...

    [QUOTE=BBeerme;18929931]Can you get tonnage off of the TEV's?

    measure the orifice. That'll give you a pretty big clue to the tonnage.
    no more Data on the TXV head. measuring orifice is way to go...
  46. Replies
    13
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    1,276

    its not the same. I think an older 240RA series. ...

    its not the same. I think an older 240RA series. don't understand the numbering valve body R0404 1 240RA-H9 represent.
    liquid pipe 7/8. my guessing is about 25-50 ton capacity. an older carrier...
  47. Replies
    13
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    1,276

    took it apart and there is damaged valve seat.

    took it apart and there is damaged valve seat.
  48. Replies
    13
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    1,276

    solenoid valve replacement help

    could not find specs on this solenoid valve. this number from valve body R0404 1 240RA-H9.
    looking for tonnage capacity.
    leaky solenoid need replacement.

    coil specs Emerson R0607 AMG 120v 17...
  49. 06D series compressor, some have solenoid...

    06D series compressor, some have solenoid capacity control and some has pressure actuated capacity control.
    its hard to tell if the tone change if all other compressors runs at same time.
    amperage...
  50. how to check pressure actuated unloader on Carlyle compressors.

    never work on pressure actuated Unloader before, how it work and how to check if its loading or unloading!
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