Instruction manual

Maximum Series Portable Chiller : Air & Water-Cooled : M1 Series Instrument
Page: 34
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: [phone]
Service Department Fax: [phone]
Email: [e-mail]
on, the control has a 15 second buffer for the low pressure
fault.Ifalowpressureconditionoccurswithintherst15
seconds,thecontrolwaitstheamountoftimespecied
by the “LP TIME” potentiometer before indicating an fault
and turning off the compressor. If the condition is corrected
before the time expires, no fault occurs. If a low pressure
condition occurs 15 seconds after the compressor turns on,
the instrument waits 20 seconds before indicating a fault
and turning off the compressor.
Note: refer to section 4.4 of this manual for additional Low
Refrigerant Pressure troubleshooting.
E. TEMPERATURE DISPLAY
1. A three digit display window indicates the appropriate
temperature. The window also displays the numeric value
for the setpoint temperature.
2. The To Process temperature is always displayed unless
a button has been pressed. If there is a probe error, the
display will show three dashes “---”.
3. When the water temperature in the chiller is above
approximately 100°F the display will show three
dashes “---”.
F. PRESSURE GAUGES
1. PROCESS PRESSURE GAUGE: Indicates process pump
pressure.
2. REFRIGERANT HEAD PRESSURE GAUGE: Indicates
refrigerant pressure on the discharge side of the
compressor. The refrigerant head pressure is also the
condensing pressure which is critical to equipment
efciency.
Pressure
gauges
M1D-15AF 15 ton air-cooled porta-
ble chiller shown.
M1D-10A 10 ton air-cooled
portable chiller shown.
Pressure gauges