Manitowoc SD0302A Technician's Handbook page 98

Operational Analysis
Wait 5 minutes into the
freeze cycle.
Compare temperatures of
compressor discharge line
and harvest valve inlet.
Discharge Line
Temperature
Record freeze cycle
discharge line temperature at
the end of the freeze cycle
_________°F (°C)
Final Analysis
Enter total number of boxes
checked in each column.
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S MODELS SINGLE EXPANSION VALVE
1
The harvest valve inlet is
Hot
-and-
approaches the
temperature of a Hot
compressor discharge
line.
Discharge line temp.
150°F (65°C)
or higher at the end of the
freeze cycle
--------------------------------
S850/S1000
Air & Water Only
Discharge line temp.
140°F (60°C) or higher at
the end of the freeze
cycle
Harvest Valve
Leaking
manuals search engine
2
The harvest valve inlet
The harvest valve inlet
is Cool enough to hold
is Cool enough to hold
hand on
-and-
the compressor
the compressor
discharge line is Cool
discharge line is Hot.
enough to hold hand on.
Discharge line temp. Discharge line temp.
150°F (65°C)
or higher at the end of 150°F (65°C) at the end
the freeze cycle of the freeze cycle
------------------------------ --------------------------------
S850/S1000
Air & Water Only Air & Water Only
Discharge line temp. Discharge line temp.
140°F (60°C)
or higher at the end of 140°F (60°C) at the end
the freeze cycle of the freeze cycle
Low On Charge
-Or- TXV Flooding
TXV Starving
3
The harvest valve inlet
is Cool enough to hold
hand on
hand on
-and-
-and-
the compressor
discharge line is Hot.
Discharge line temp.
less than 150°F (65°C) or higher
at the end of the freeze
cycle
--------------------------------
S850/S1000 S850/S1000
Air & Water Only
Discharge line temp.
less than 140°F (60°C)
or higher at the end of
the freeze cycle
Compressor
4