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Type: Posts; User: randystoker

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    Carrier 30GXN255 chiller

    I have a Carrier chiller, model # 30GXN225-AE650FZ, serial # 1303F24018 that is going off due to the 15 amp fuse in fuse socket #2 blowing. I don't have a manual and the schematic is extremely...
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    Solved problem

    Sent Emerson (company presently over Liebert Equip.) an e-mail with the model and serial # along with the symptoms. They sent back a call number to use when our technician would be physically by the...
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    liebert challenger 3000 series

    The setpoints: 72F, sensitivity +-2.5; 52% relative humidity, 10% sensitivity; 75F high temp alarm; 65F low temp alarm, High humidity alarm 70%, low humidity alarm 40%.

    Current conditions: 61F &...
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    Challenger 3000 series liebert

    I have a Challenger 3000 series liebert with chilled water (modulating valve) and hot-water reheat (solenoid valve) for a computer room. The temperature setpoint is 75F, but the computer room is at...
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    Darn it! I incorrectly stated some of info....

    Darn it! I incorrectly stated some of info. above. The technician I was helping had previously replaced the blower motor with a motor from a old lochinvar. He then started having problems with the...
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    Troubleshooting Lochinvar (PBN0751)

    I'm attempting to troubleshoot an inoperative Lochinvar Power-Fin hot-water heating boiler, Model (PBN0751-M9), O&M Manual for that model range is PB_PF501-1300 I&O. Unforunately, the O&M manual...
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    I was able to break away from my jobs this...

    I was able to break away from my jobs this morning and join the technician that was working this. The head pressure wasn't low like I thought for both circuits, 1 circuit actually looks normal at...
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    CGAF chiller tripping on low pressure

    I have a Trane CGAF chiller (60-ton) that is tripping on low pressure. When the first compressor starts up for each circuit, all the condenser fans for that circuit stage on at the same time. They...
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    Fixed!

    Your diagnosis was exactly on the mark! The "oil system fault" failure is not a problem anymore. Thanks for the help!!
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    Oil System Fault (Trane RTAA Chiller)

    I have a Trane chiller model # RTAA0704XN01S300BN, Serial # V02J06868. Both circuits have repetitive failures from "oil system fault". Both oil temperature sensors have been replaced and the...
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    Update on York Chiller

    The starter manual was right on target!!! This chiller has been started up, according to my boss, the first time in 3 years.


    Thanks for the help!



    Randy
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    You're right, it does have the solid state...

    You're right, it does have the solid state starter (I was looking at the wrong document, the one for electromechanical starters).

    I'll dig thru the manual & let you know how it comes out.
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    Screw Chiller (YSDA)

    I have a York model # YSDADAS3CMA screw chiller that has the error "Motor Controller - EXT. RESET". I found York Form # 160.49-PW13, page 9, that mentioned it is caused by an open safety or...
  14. York manuals

    Thanks, I'll update my profile. I have been able to find some York chiller manuals thru the York portion of the JCI website if I had at least the front page of the old manual and got the form # off...
  15. York centrifugal chiller manuals (old unit)

    I'm looking for the manuals for a York centrifugal chiller model # YTBIB2B1-CFE (older R-11 chiller). Does anybody know where the manuals/literature are located on the York website?
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