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chillerguru
07-28-2004, 12:57 AM
Does anybody have info on Mcquay Screw compressor. Model SAL175QA13DA Im lookinin for compressor piping configuration. Internal operation on a ALS090 R-22 Screw chiller. If you could help Thanks Could not find it on my Mcquay CD.
sonc
07-28-2004, 03:57 AM
Maybe here?

http://www.mcquay.com/eprise/main/McQuayCom/ProductInfo/ACChillers/AC_Screw_120-400_R22/3MQC_ACChillers_Screw_120-400


We just picked up a 150 at a hospital..cool machine..breaks down weekly

[Edited by sonc on 07-28-2004 at 04:01 AM]
puposky
07-28-2004, 01:10 PM
call the tech line where they are built in Virginia...540-248-9201
Holodoff
04-08-2009, 05:37 AM
dear Chillerguru, did you find required thing?
I'm asking because I'm looking for manual for this compressor.
Can you help me?
cntrlvalchiller
04-08-2009, 10:59 PM
What do you want to know? This is Stargate-rotor compressor with suction on side discharge at top. liquid injection on side mid compressor econ.at rear of comp.oil cooler at bottom front and dual slide valves in 45*from each other. has pump at rear on rotor.oil sightglass on top mid way.orignal set up across the line start with no oil seperator.retro cek kit softstart and oil seperator.wasn't the best and they were not lasting very long.Although I did come across one that had about 8 years of operation with decent amount of runtime although in my experience wasn't common.New mcquay comp totally different but ALS series didn't fare to well for Mcquay. So far the new style of Mcquay screw AGS ok I just dont care for microtech 2.(coral control).Still prefer Trane RTAA any day.
Holodoff
04-13-2009, 05:47 AM
It is necessary to replace defective compressor and install new one. Vendor sent new unit without oil, absolutely dry.We have no information about working of oil circuit. (Through what orifice fill the circuit? What we have to see in oil sightglass when compressor is working? How does oil circuit works?)
absrbrtek
04-13-2009, 06:20 AM
Does it have a CEK on it?
jemawalton
04-13-2009, 12:55 PM
Hopefully after 5 years, he has been able to locate the info he needs.
chillerguru
05-01-2013, 09:08 AM
looking for compressor breakdown and operation of capacity control, weather slide valve or piston unloading.
1) Mcquay chiller M# ALS090AS27-ER10 S#stnu990600101
Compressor M# SAL175QA13DA Style #MR74165703
ryan1088
05-01-2013, 12:40 PM
Go download the iom from their website, it will show what you're looking for.
summerhelp
05-01-2013, 07:12 PM
This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

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summerhelp
05-01-2013, 07:16 PM
This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

You can find the rules for posting and qualifications here (http://hvac-talk.com/vbb/showthread.php?t=957002).

Additional infractions may result in loss of posting privileges.
jpsmith1cm
05-01-2013, 08:18 PM
summerhelp

This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread.

You can find the rules for posting and qualifications here (http://hvac-talk.com/vbb/showthread.php?t=957002).

Additional infractions may result in loss of posting privileges.