Instruction manual

Maximum Series Portable Chiller : Air & Water-Cooled : M1 Series Instrument
Page: 41
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [e-mail]
during off cycle. Have the solenoid repaired or
replaced if defective by a refrigeration serviceman.
4. Expansion valve plugged or inoperative. Check
thermal bulb and capillary tube for damage. Have
repaired or replaced if defective by a refrigeration
service man.
4.5 COMPRESSOR SHUTS OFF ON INTERNAL OVERLOAD
A. Control does not reset. Have compressor windings and internal
solid state safety control checked by a refrigeration serviceman.
Have it repaired or replace if defective.
4.6 LOW OR NO PROCESS PRESSURE OR WATER FLOW
A. Valves. Check if water valves are open.
B. Pump. Check pump for correct rotation. Check pump suction for
restriction. Replace motor if defective.
C. Filters.Checklterinthechilledwatercircuitandcleanif
necessary.
D. Pressure switch (or ow switch). Readjust or replace if defective.
E. Fuses and wiring. Have electrician check the fuses and wiring.
4.7 COOLING CAPACITY INADEQUATE
A. Low refrigerant charge. Check for adequate refrigerant charge
(bubbles or misty sight glass indicates low charge). If charge is low,
have system checked for leaks and recharged by a refrigeration
serviceman.
B. Hot-gas bypass valve stuck open. Have repaired or replace if
defective by a refrigeration serviceman.
C. Expansion valve plugged or inoperative. Check thermal bulb and
capillary tube for damage. Have repaired or replaced if defective by
a refrigeration serviceman.
D. Plugged lter.Checklterinchilledwatercircuitandclean.
E. Air in system. Purge air.