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  1. Thread: Vvt or vav

    by Jeremy325
    Replies
    5
    Views
    522

    Vvt or vav

    Got a bank with several office on third floor. It has 7.5 ton unit with several zones. Would y'all use a vvt system with bypass? The size of of the bypass should be sized for the unit CFO minus the...
  2. Replies
    15
    Views
    1,911

    What about all the flex

    What about all the flex
  3. Thread: Yhc035

    by Jeremy325
    Replies
    2
    Views
    305

    Yhc035

    Got to rtu on the same job less than a year old. They are both doing the same thing. Low suction pressure high superheat normal head with extreme high sub cooling. Liquid is stacking in condenser. I...
  4. Replies
    18
    Views
    2,554

    Does anyone have any recommendations for a MAC

    Does anyone have any recommendations for a MAC
  5. Thread: Carrier vvt

    by Jeremy325
    Replies
    4
    Views
    517

    Carrier vvt

    I got a 7.5 ton split system with hot water coil. It feeds a big lobby. It just dumps into it. They have built a small office off the side. There is a 8 in line that comes of the lobby unit. Would a...
  6. Thread: Trane VRF

    by Jeremy325
    Replies
    1
    Views
    498

    Trane VRF

    Anyone familiar with the new Trane VRF system. Just back from factory training on them and I in the process of installing 2 of these systems.
    Just wanted input on what yall think about them
  7. Thread: PROT485

    by Jeremy325
    Replies
    7
    Views
    1,045

    I did not leave the building I had all split...

    I did not leave the building I had all split systems so don't need right?
  8. Replies
    21
    Views
    2,254

    Done that no change

    Done that no change
  9. Replies
    11
    Views
    1,319

    I am sorry it occupied I don't know why I said it...

    I am sorry it occupied I don't know why I said it was vacant
  10. Replies
    11
    Views
    1,319

    Yes it is vacant it is jail pod 72 temp with...

    Yes it is vacant it is jail pod 72 temp with about 64% humidy and higher
  11. Replies
    21
    Views
    2,254

    Oversized and extreme high humidity

    I have a 15 ton J15P heatpump. This is a new jail engineered building. We are having a major humidity problems the unit runs only minutes until satisfied. This has a tandem compressor design. I...
  12. Replies
    11
    Views
    1,319

    Oversized/humidity problems

    Hello everyone. I have a 15 ton J15PC heatpump in an Commerical building. This was a designed and engineered building. I believe the unit is oversized but getting someone to admit that is not going...
  13. Replies
    1
    Views
    383

    Metasya software

    I am needing software to Interface Metasya. I just got done with a job. Jci set up the software. Is this had I get from Jci.
  14. Replies
    6
    Views
    689

    Talk to ur sales manager he should be able to get...

    Talk to ur sales manager he should be able to get it for you
  15. Replies
    6
    Views
    689

    Never used pilot to config the tables. See if...

    Never used pilot to config the tables. See if you can get service tool v from your carrier distributor . I would have though you would be able to change the set points though with the pilot. Hope...
  16. Replies
    15
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    1,631

    Can u send that to me also

    Can u send that to me also
  17. Replies
    6
    Views
    650

    No this is not a new building. No drawings to be...

    No this is not a new building. No drawings to be found. I installed the 6400 for one of the AHU units. I am a ciontractor also
  18. Replies
    6
    Views
    650

    Thanks for reply: AhU Inputs: SAT., RAT.,...

    Thanks for reply:
    AhU Inputs: SAT., RAT., VFD_SIG, FAN_STAT, OSA DAMPER (twp Position)
    Outs: VFD_SIG 4-20 , HEat Valve Cool Valve, Starter
    Chiller are stand alone (dont want that)
    I have...
  19. Replies
    6
    Views
    650

    Sequence of operation

    I need some help.... I have takin over a new building. Controls are all jumped out fixing to upgrade it. Need some advice on sequence of op. the building has a large heat load. Chillers run year...
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