Part Number Preliminary 6/11 195
Safety Limits
Refer to “Analyzing
Safety Limits” page 134 to
eliminate all non-refrigeration
problems.
Stops on
safety limit:
1 or 2
Stops on
safety limit:
1 or 2
Stops on
safety limit:
1 or 2
Stops on
safety limit:
1
Freeze Cycle
Discharge Pressure
________
________ ________
1 minute Middle End
If discharge pressure is High or Low, refer to Freeze cycle high or low discharge
pressure problem checklist page 166 & page 166 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 169 & page 169 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 or Normal
Suction pressure is
High
Twin Expansion Valve – I1470C/I1870C/I2170C Models
Operational Analysis 1 2 3 4
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