Search:

Type: Posts; User: john120

Search: Search took 0.00 seconds.

  1. Replies
    12
    Views
    1,177

    Needed to make this issue go away asap , very...

    Needed to make this issue go away asap , very high priority area. Disabled vav actuators, fixed dampers, and jumped out high static. Unit now runs constant volume with hot water reheats maintaining...
  2. Replies
    12
    Views
    1,177

    chattering contactor

    currently having intermittent issues with a aaon rtu with cfm and compressor contactors chattering. This unit has all the bells and whistles off and on time delays, fan cycling, hgbp, s/f vfd, hi...
  3. Replies
    2
    Views
    623

    electrical raceway cooling required

    I have a customer that has 3 electrical raceways that are 12"*12"*180". The ambiant temperature can reach as high as 130 degrees. The raceways currently are 3 sided and opened on top. Inside the...
  4. We did look at the crank journal, with the idea...

    We did look at the crank journal, with the idea of installing connecting rod cap and cutting off the connecting arm and sealing the oil port. Running the compressor on 5 cylinders. The lead tech said...
  5. Removed hand hole, found broken connecting rod....

    Removed hand hole, found broken connecting rod. Purchased rebuilt from national compressor out of ridgewood ny. first time using these guys. Any thoughts would be welcome.
    Thanks to all.
    John
  6. oil pressure is low and will not load the...

    oil pressure is low and will not load the compressor. i have a minnimal amount of time to have this compressor off line. We are rebuilding the pump replacing the regulator and the main bearing. this...
  7. carrier/carlyle 5f60 compressor pump end main bearing

    I am going to be replacing pump end main bearing. The carrier catalog indicates that i will need a bearing puller [size 5h40] that is availible through totaline. The price on this puller is $485. I...
  8. Replies
    12
    Views
    1,852

    All xdv's are running. The chillers are not...

    All xdv's are running. The chillers are not cycling off, they are cycling between 30 and 45 tons of cooling, rapidly. The chillers were in for 2 years and never had a short cycle alarm, until...
  9. Replies
    12
    Views
    1,852

    there are 2 refrigerant circuits that each...

    there are 2 refrigerant circuits that each contain 2 15 ton compressors. the short cycling is occuring between 30 and 45 tons of cooling or the second and third stages. because of that i am having a...
  10. Replies
    12
    Views
    1,852

    thanks for the reply, 70#/220# with 1...

    thanks for the reply,
    70#/220# with 1 compressor c1a
    70#/240# with 2 compressors c1a,c1b
    hot gas valve about 20%
    lee temp level, between the bottom and middle sight glasses. [there are 3 ]...
  11. Replies
    12
    Views
    1,852

    liebert xdc160 short cycle alarm c1b

    liebert tech support feels there has been a load change in the room. i am in this building 4 or 5 days a month an to the best of my knowledge there hasn't been any change in load.
    the c1b...
  12. Replies
    2
    Views
    1,049

    tech. incoming gas pressure is at 5" w.c. 24 vac...

    tech. incoming gas pressure is at 5" w.c. 24 vac at the controller. literature for the furnace or the board does not give any indication what input would cause this failure. the board will give you a...
  13. Replies
    2
    Views
    1,049

    trane xe tux120 external l/o

    I had the same problem with this furnace last year at this time. Replaced the board and everything was fine. The led flashes 2 times.
    thanks in advance
Results 1 to 13 of 13
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event