Air Source Screw Water Chiller Unit – Installation Operation and Maintenance Manual
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Maintenance and Service
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.1 Normal Operating Pressure
The following figures show the low pressure and high pressure of the water chiller unit.
Low pressure: If the normal operating pressure of the shell-and-tube heat exchanger is lower than 1.5 bar,
the water chiller unit is in abnormal status.
High pressure: If the exhaust pressure for normal operating is lower than 6.7 bar or higher than 20.5 bar,
the water chiller unit is in abnormal status.
If the pressure is in abnormal status after the water chiller unit operates steadily, see "10. Troubleshooting."
L
o
w
p
re
ss
u
re
(b
a
r)
Please print and fill in the sheets in appendixes 1 to 3 of this operation manual.
CAUTION
The water chiller unit must be maintained and serviced by experienced professionals.
WARNING
