Suction Pressure Low Checklist - Manitowoc SD0302A Technician's Handbook
S series;
s300 series;
s420 series;
s450 series;
s500 series;
s850 series;
s1000 series;
s1200 series;
s1400w series;
s1400a series;
s1400n series;
s1800w series;
s1800a series;
s1800n series
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Also See for SD0302A:
- Technician's handbook (301 pages) ,
- Service manual (168 pages) ,
- Installation, use & care manual (68 pages)
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SUCTION PRESSURE LOW CHECKLIST
Improper Installation
•
Refer to "Installation/Visual Inspection Checklist"
(page 108)
Discharge Pressure
•
Discharge pressure is too low and is affecting low
side – refer to "Freeze Cycle Discharge Pressure
High Checklist" (page 113)
Improper Refrigerant Charge
•
Undercharged
•
Wrong type of refrigerant
Other
•
Non-Manitowoc components in system
•
Improper water supply over evaporator – refer to
"Water System Checklist" (page 109)
•
Restricted/plugged liquid line drier
•
Restricted/plugged tubing in suction side of
refrigeration system
•
TXV starving - continue the table
Part Number 80-1479-3 7/10
manuals search engine
117
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Troubleshooting
