Manitowoc Q270 - Ice Thickness Probe Operation; Ice Thickness Probe Operation and Features

Part Number STH039 8/13 81
Wait 5 minutes into the
freeze cycle.
Compare temperatures of
compressor discharge line
and harvest valve inlet.
The harvest valve inlet is
Hot
-and-
approaches the
temperature of a Hot
compressor discharge
line.
The harvest valve inlet
is Cool enough to hold
hand on
-and-
the compressor
discharge line is Hot.
The harvest valve inlet
is Cool enough to hold
hand on
-and-
the compressor
discharge line is Cool
enough to hold hand on.
The harvest valve inlet
is Cool enough to hold
hand on
-and-
the compressor
discharge line is Hot.
Discharge Line
Temperature
Record freeze cycle
discharge line temperature at
the end of the freeze cycle
_________°C
Discharge line
temperature
71°C or higher
at the end of the freeze
cycle
Discharge line
temperature
71°C or higher
at the end of the freeze
cycle
Discharge line
temperature
71°C or Lower
at the end of the freeze
cycle
Discharge line
temperature
71°C or higher
at the end of the freeze
cycle
Final Analysis
Enter total number of boxes
checked in each column.
Harvest Valve
Leaking
Low On Charge
-Or-
TXV Starving
TXV Flooding Compressor
SINGLE EXPANSION VALVE SELF CONTAINED AIR COOLED CONDENSER
Operational Analysis 1 2 3 4