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Type: Posts; User: trimble

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  1. Replies
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    6,189

    How is your water flow? Do you have air in the...

    How is your water flow? Do you have air in the water loop?
  2. Replies
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    1,062

    All you need to do is isolate the compressor,...

    All you need to do is isolate the compressor, remove refrigerant from compressor, replace unloader gasket, snug bolts, evacuate compressor and open valves.
  3. Replies
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    1,157

    I just looked in Eagle and there is no SB-5 for...

    I just looked in Eagle and there is no SB-5 for the RTWA chiller. RTAA-SB-9 would be the closest service bullitan. The RTAA and RTWA use the exact same micro control system. I have RTAA-SB-9 in...
  4. Thread: Trane Chiller

    by trimble
    Replies
    21
    Views
    3,130

    Check your saturated condenser temp sensor. This...

    Check your saturated condenser temp sensor. This could also cause your fans not to stage. Also, if the circuit is overcharged, you will subcool the refrigerant at the sensor and it will read low. ...
  5. Replies
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    2,131

    When you have less refrigerant flowing to the...

    When you have less refrigerant flowing to the evap, superheat goes up
  6. Replies
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    2,131

    You've got it backwards. If you lower superheat,...

    You've got it backwards. If you lower superheat, you are flowing more refrigerant which will lower your subcooling because you have less refrigerant stacking in the condenser.
  7. Thread: Trane Chiller

    by trimble
    Replies
    21
    Views
    3,130

    There are several things that can cause this...

    There are several things that can cause this problem. When you say it is pumping down to 10 of vacuum, are you going by your gauges, or the UCM? You can have a bad saturated suction temp or comp...
  8. Replies
    4
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    650

    Hot Shot works alot better. I would post this...

    Hot Shot works alot better.

    I would post this in the refrigeration and ice making section.
  9. Replies
    10
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    1,375

    How much $ do these stats run?

    How much $ do these stats run?
  10. Replies
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    1,448

    You need to go back with the OEM timer from...

    You need to go back with the OEM timer from Carrier. This is a multifunction timer. It controls part winding start contactors, it bypasses the oil pressure switch at start up, and it bypasses the...
  11. Replies
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    1,448

    That electronic replacement timer has the exact...

    That electronic replacement timer has the exact same terminal designations as the old mechanical timer (A A1 A2 B B1 B2 D D1 D2 M1 M2 E E1 E2). You connect the wires to the exact same terminals as...
  12. Thread: Leak Search

    by trimble
    Replies
    15
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    1,503

    If you have a restriction, your head pressure...

    If you have a restriction, your head pressure will be low, not high, unless it is WAY overcharged. Need to know your superheat, subcooling, ambiant temp, and delta T. If you have a restriction, you...
  13. Replies
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    1,211

    http://www.bb-elec.com/product.asp?sku=485SD9TB&Pa...

    http://www.bb-elec.com/product.asp?sku=485SD9TB&PathId=10&altsku=rs485chartexternal

    I use this converter. It has the 9 pin serial connector so you can plug it straight into your laptop without...
  14. Replies
    13
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    1,211

    As Jhawk said, you can use a RS-232 to RS-485...

    As Jhawk said, you can use a RS-232 to RS-485 converter and it works great and is faster. I bought mine through the B&B Electronics website.
  15. Replies
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    644

    Used it in several older cars with no problems.

    Used it in several older cars with no problems.
  16. Replies
    11
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    1,608

    I had the same problem with Trane TechView. I...

    I had the same problem with Trane TechView. I ended up buying a laptop with an onboard serial port.
  17. Replies
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    1,917

    30GB-045: This is a 45 ton Carrier Flowtronic...

    30GB-045: This is a 45 ton Carrier Flowtronic Chiller.

    When pull down control is in effect, the unit will not load up anymore if the water temp is dropping more than 1 deg a minute.

    You MUST...
  18. Replies
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    1,323

    I also agree, check the blower rotation. You...

    I also agree, check the blower rotation. You definitely have a problem with airflow across the evap. Did a piece of insulation get caught up in a set of turning vanes? Is a fire damper closed? ...
  19. Replies
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    1,322

    It is normal to have a 40# pres drop across a...

    It is normal to have a 40# pres drop across a large commercial air cooled condenser.
  20. Thread: orfice sizes

    by trimble
    Replies
    4
    Views
    597

    You need to get the model number of the...

    You need to get the model number of the condensing unit and install the orifice that matches the condensing unit.
  21. Replies
    2
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    1,122

    Check for a restriction at the liquid line drier....

    Check for a restriction at the liquid line drier. Unit may have a factory installed drier on the liquid line inside the unit.
  22. Replies
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    2,765

    Sometimes the problem is a loose connection where...

    Sometimes the problem is a loose connection where the wires are pierced at the plug on the 1U3 module.
  23. Thread: New Condenser

    by trimble
    Replies
    11
    Views
    1,079

    The liquid line temp can't be lower than the...

    The liquid line temp can't be lower than the ambiant temp unless there is a restriction before the point you are taking the temp reading. You say you are taking the temp just past the liq service...
  24. Replies
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    1,367

    Sounds like my old Service Mgr.

    Sounds like my old Service Mgr.
  25. Flem, I didn't know that. I just started a 50...

    Flem,

    I didn't know that. I just started a 50 ton scroll last week and it had intellipak controls but it was manufactured in April, 04. I run TechView on Windows XP with no problems but obvously...
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