Cryomech PT415 - Page 63

Operation
7-8
7.7.5 Error diagnostics on display screen
Errors will cause the compressor system to stop. Errors are displayed on the bottom line
of the display screen. If more than one of the errors below is present, only the highest
priority one will be displayed. The table lists errors from highest to lowest priority. If the
error is a lockout contributor, it will be noted in the Explanation column.
Once the error condition has cleared, the compressor can be restarted by pressing the
Compressor ON button.
If the error condition still exists the compressor will not restart.
Error Message Explanation
"High pressure too
High!"
The high side pressure is above the high set point. Release helium from
the system.
"High pressure too
Low!"
The high side helium below the low set point. Add helium to the system.
“Low Pressure Too
Low!”
The helium gas pressure is below the threshold. Add helium to the
system.
“Low Pressure Too
High!"
The low side helium pressure is above the high set point; release helium
from the system, verify line orientation (lines may be reversed High to
Low.)
"Delta Pressure Too
High!"
The differential pressure is above the high set point; verify static
pressure.
"Delta Pressure Too
Low!"
The differential pressure is below the low set point verify static pressure;
verify line orientation (lines may be reversed High to Low.)
"Static Pressure Too
High!"
The static pressure is above the high set point; verify static pressure,
release helium
"Static Pressure Too
Low!"
The static pressure is below the low set point; verify static pressure, add
helium
"Water In Temp Too
High"
The inlet water temperature is above the high set point; reduce water
temperature
"Water In Temp Too
Low"
The inlet water temperature is below the low set point; increase water
temperature
“Water Out Temp Too
High!”
The outlet water temperature is above the high set point; increase water
flow rate and/or reduce temperature.
"Water Out Temp Too
Low"
The outlet water temperature is below the low set point; increase water
temperature.
“Helium Temp Too
High!”
The helium gas temperature is above the high set point; check cooling
water flow rate/temperature, check compressor module oil level by
checking sight glass when the compressor is running.
“Helium Temp Too
Low!"
Helium discharge temperature below the low set point; check cooling
water temperatures, increase ambient temperature if system has been
off and ambient temperature is below 40°F
“Oil Temp Too High!”
The oil temperature is above the high set point; Check flow rate and
inlet temperature of cooling water.