Troubleshooting - SPX Votator II Instruction Manual

Waukesha Cherry-Burrell

Troubleshooting

PROBLEM
Freeze-up.
Heat transfer not at expected
level.
Tube Scoring.
Lower back pressure required
to achieve desired refrigerant
temperatures.
Increased compressor head
pressure.
11/2012
POSSIBLE CAUSE
Power failure.
Product outlet temperature
too low.
Product flow rate too low.
Product ran out of supply tank
prematurely.
Incorrect start-shutdown
procedure.
Process not set correctly.
Product pressure lower than
steam pressure in jacket.
Oil in system.
Steam on jacket super
heated.
Oil deposits on transfer tube.
Liquid flow rate on jacket too
low.
One or several system valves
or floats not functioning
properly.
Water and air in cooling
system.
Temperature extremes.
System operating at a high
vacuum causing water in
refrigeration system.
Air in refrigeration system.
95-03057
Troubleshooting
SUGGESTED ACTION
Check power supply.
Adjust process to raise product outlet
temperature.
Adjust process to increase product
flow. Check that pump is matched to
process.
Adjust supply to prevent supply lines
from running dry.
Refer to "Startup Procedure" on
page 35.
Check current process to system
specs at time of installation.
Utilize back valve to assure that
system pressure is at a minimum of
10 psi (0.7 bar) above the media
pressure.
Check and drain oil regularly from
accumulator and other oil separators,
oil legs or pots in refrigeration system.
Use only dry and saturated steam.
Remove heat transfer tube and clean
any deposits on tube. Add filter
system to remove impurities from
cooling agents.
Use jacket recycle loop at a flow of 50
GPM.
Inspect and test system valves and
floats as indicated in "Preventive
Maintenance" on page 41. Replace as
necessary.
See "Water and Air in Refrigeration
System" on page 82.
Replace tube if scoring becomes
great. Refer to "Care of Heat
Exchanger Tube" on page 43.
Refer to "Water and Air in
Refrigeration System" on page 82.
Refer to "Water and Air in
Refrigeration System" on page 82.
Page 79