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08-22-2009, 12:57 PM #14
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Exactly it is not failing it's just over temp I have watched it crawl up to 210 and shut down, as far as the strainers I hear ya well i'll have to put a strainer back in there.
Thanks for the feedback!
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08-22-2009, 01:36 PM #15
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Have you tried to disconnect the loaders to keep it from loading up to see if it will stay online ?
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It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.
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08-22-2009, 01:48 PM #16
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it's a screw chiller so their slides and it has exv's so the scb "screw control bd" would go into alert and shut the compressor down
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08-22-2009, 01:59 PM #17
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I think you need to read the manual to figure out what your working on.
Originally Posted by chrishvacman
UA 100
It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.
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08-22-2009, 06:29 PM #18
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Why whould i have to read the manual I know exactly what i'm working on it's a screw compressor which varys capacity via slides/ Varry slide position loading ect.... Reads liquid level ect.
Right from carriers manual
Screw Compressor Board (SCB) — The SCB has
8 inputs along with 2 analog and 5 discrete outputs. The SCB
module communicates the status of the inputs with the MBB
and operates the oil heater (30GXN,R only), cooler heater
(30GXN,R only) and oil pump outputs.
ComfortLink Compressor Protection (CCP)
Board — The CCP board monitors the high-pressure
switch status, running current and motor temperature for each
compressor. Each CCP board controls up to 2 compressors.
The CCP board also controls the motor cooling solenoid, oil
solenoid and contactor outputs. A pre-punched configuration
header for each compressor determines the must trip amps
setting. Each CCP board sends the MBB each compressor's
motor temperature, relay status and running current as a
percentage of the must trip amps value. The CCP board also
communicates any alarm conditions as the feedback value.
Capacity Control — The control system cycles compressors,
loaders, and minimum load control valves to maintain
the user-configured leaving chilled fluid temperature set point.
Entering fluid temperature is used by the microprocessor to
determine the temperature drop across the cooler and is used in
determining the optimum time to add or subtract capacity
stages. The chilled fluid temperature set point can be automatically
reset by the return fluid temperature, space temperature or
outdoor-air temperature reset features
I can't just unplug the unloader on a screw compressor slide "cap valve"
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08-22-2009, 06:47 PM #19
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Like I said read the manual. I can`t help getting pretty close to the DIY threshold for me. Originally Posted by chrishvacman
UA 100
It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.
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08-22-2009, 07:10 PM #20
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I'm not understanding what your getting at i have had this chiller and all of it's issues figured out since the middle of the thread.
The End
I am not asking for help I have taken care of the problem new to the fourm and not sure how long you guys keep this crap going thats all
ps, I still don't understand why you keep telling me to read the manual. Wierd!
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08-22-2009, 07:12 PM #21
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I think you are only seeing a piece of the picture. Good Luck with is all I can say!!!!beat22 Originally Posted by chrishvacman
UA 100
It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.
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