Part Number STH025 8/12 131
Freeze Cycle
Discharge Pressure
_______ ______ ______
1 minute Middle End
into cycle
If discharge pressure is High or Low refer to freeze cycle high or low discharge pressure problem checklist
page 140 to eliminate problems and/or components not listed on this table before proceeding.
Freeze Cycle
Suction Pressure
_______ ______ _____
1 minute Middle End
If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem checklist
page 144 to eliminate problems and/or components not listed on this table before proceeding.
Suction pressure is High Suction pressure is Low
or Normal
Suction pressure is
High
Suction pressure is
High
Wait 5 minutes into the
freeze cycle.
Compare temperatures of
compressor discharge line
and both harvest valve
inlets.
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.
SINGLE EVAPORATOR, DUAL EXPANSION VALVE
SELF CONTAINED AIR, WATER & REMOTE CONDENSER
Operational Analysis 1 2 3 4