92 Part Number STH042 3/14
4
Stops on
safety limit:
1
If discharge pressure is High or Low, refer to freeze cycle high or
low discharge pressure problem checklist to eliminate problems
and/or components not listed on this table before proceeding.
If suction pressure is High or Low refer to freeze cycle high or low
suction pressure problem checklist to eliminate problems and/or
components not listed on this table before proceeding.
Suction
pressure is
High
3
Stops on
safety limit:
1 or 2
Suction
pressure is
High
2
Stops on
safety limit:
1
Suction
pressure is
Low
1
Stops on
safety limit:
1 or 2
Suction
pressure is
High
Operational Analysis
Safety limits
Refer to “Analyzing Safety
Limits” to eliminate all non-
refrigeration problems.
Freeze cycle
Discharge Pressure
_______ _______
_______
1 minute Middle End
Freeze cycle
Suction Pressure
_______ _______
_______
1 minute Middle End
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