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waseem
15-07-2012, 08:50 PM
I have Mcquay air cooled chiller model MNG EVO CLA 107.2 ST

there is MEch pressure high alarm on two circuit and i relaese the alarm from high pressure switch but alarm did not clear from microprocessor , chiller do not start , i switch off power supply and switch on again , microprocessor directrly appear : Mech press high alarm and i could not clear it , when i select clear on , it return to clear off and unit do not start .
microprocessor is Microtech III Semiens

Please all , anyone advise me



waseemnaamo@yahoo.com

install monkey
15-07-2012, 09:27 PM
try accessing the controller with a password
McQuay CEH/PEH Microtech 100
and 200
+ = - HELP
McQuay CEH Microtech
+ = - ?
McQuay PEH Microtech II
Touchscreen
1331721125
627829
McQuay ALS
ALR
Microtech 200
Enter Enter
Enter Enter