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Type: Posts; User: CJ Courtney

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    Will guys I finally got a chance to check alittle...

    Will guys I finally got a chance to check alittle futher into my alarm T-123.I have to say thanks to all for the advice of checking more and reading the book.This unit does not have a HSS temp sensor...
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    Where can I take alook at that?Guessing...

    Where can I take alook at that?Guessing Configuration,just for my own info---CJ
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    Thanks for all the replys and it has the verison...

    Thanks for all the replys and it has the verison 5 controls and does not have hot gas.This is the very first problem with this unit since it was installed about 2yrs ago right before school started.I...
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    Alarm:High Saturation Suction Temp

    Guys I have a 20ton Carrier package unit.Has 4 scroll compressors 2-per circuit (R22)and its couple of yrs old.#1 runs fine and #2 after 15mins goes into this alarm.It being a RTU and 100...
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    Carrier Troubles

    Well ga1279 after several meetings w/one of the contractor(Carrier) who installed the B3 compressor,he reminded the supervisiors that back then he had stated that the chiller is doing all it can.Its...
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    Carrier

    Guys,thanks so much for the help over these past days and giving me ideals on what to check.If its any help to provide the amp draw of each compressor from each school I have that...
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    Carrier

    Thanks for responding to my questions and doing some research on these issues.I did call Carrier on A2 and he could only give me the CFM's which is 75cfm but not the hp.He did not show that info.I...
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    Carrier

    Thanks ga1279,I'm learning alittle more on these compressors.On both chillers the only compressors that has unloaders(elec) is compressors A1,B1.The amperage difference was on compressors A3.At TE A3...
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    Carrier

    Well guys I collected alittle more infor on both chillers and the barrels on both are the same M#10HB402-056-01. The compressors M#'s are listed from both schools for comparison. TE ...
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    Carrier

    Thanks,I will do that tomorrow.No,they did not change out the orfice,I was there when they added the other compressor.Looing at the display,the EXV would be between 88%-100% w/all 17stages of...
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    Carrier

    Goodlistener,these compressor numbers are from the one that won't reach setpoint.At the other school that cools,A3 is a 40hp and compressor B3 is the same size compressor that was installed in both...
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    Compressor Size???

    Guys after taking in all the suggestions and ideals,it appairs that maybe this chiller is undersize for the load.As stated in the original post the chiller was a 150ton,then a compressor was added to...
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    Carrier Pics

    Guys I could not get the m#'s off of the compressors today,been raining all day long.In the first pic the compressor closest to you is the compressor that was added (B3).In the next pic is the...
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    Carrier

    Guys,thanks again for the help.On Monday I will get the numbers off each compressor.And with the help here maybe we can fine the problem.Which that is what I'm wondering about,is that maybe this...
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    Carrier

    Thanks for replying to my question ga1279.The compressors is A3 at both schools and they are both orginal to the chillers.At one school compressor A3 draws 60amps(40hp),at another school compressor...
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    Carrier

    Sorry about that,its 30GTN150 but with the added compressor to the B circuit,its a 170 now.Thanks again,please excuse me for not having all the info---CJ Courtney
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    Carrier

    Sorry guys for the confusion.The chiller was a 150tons,which consisted of compressors A1,A2,A3,B1,&B2.Carrier up size the chiller by adding compressor B3 and changing the program to recognize the 3rd...
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    Carrier GTN150ton or not?????

    Guys at work (HISD) I have two school that are the same square footage,both school are identical,just different names.Both have 150ton Carrier Flotronic chillers,same age.Both schools cooled just...
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    Trane

    Yahooo!!!!Chiller is up and running,thanks guys for the help.Had to change other items in P5 besides #50,had to set tonage and afew other settings.New style board,did not come set up,thanks to...
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    RTAA

    Thanks for the answers to my problems.I did look up item #50,DANG!I will check that out Monday.I did not know about just replacing the keypad,some of the other LED's are very dim and can hardly make...
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    RTAA130 Board Problem

    Getting ready for school to startup Monday after next(I'm in Main.Dept)Today we spent cleaning cooling tower at one of the HS's.So right after lunch I went over to the middle school that has 3 of...
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    Trane RCAA130 Problem????

    Guys,I work maintenence for a school dist.and at one of the schools,it has 3 130ton screw chillers(air cool).These are about 10yrs old now and other than sensors,lots of fan motors,acouple of 1C1...
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    Carrier Problem

    Lic.to chill:No I have not check,the unit is on a EMS and does have temp reset.I look at the control setpoint and its at 42degrees.Since you brought it up,I did have the chiller in test mode to pump...
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    Carrier Problem

    Guys, thanks for replying.Here in the south part on Texas(Houston),the normal LWT is 40-42degrees.We also have thermal tanks that is charge a night to 40 degrees.Yes,T4 is for the SCT,is this the...
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    Carrier 30GTN170 Loading Problem

    Guys,I can't figure out whats wrong.This chiller has a setpoint of 42degrees,but will only provide a 46.7LWT w/55.6EWT.The unit is at 100%,15stages of cooling,it has 17 stages.Circuit A,the EXV is at...
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