FTS LYOSTAR 3, Operator'S Manual

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FTS Systems LyoStar™ 3 General Maintenance
Rev 006, 01/14 61
© SP Scientific 2014
Recommended Annual Maintenance Schedule
SP Scientific recommends performing the following maintenance tasks annually. If
additional assistance is required, please contact SP Scientific Service.
Recommended Annual Maintenance Task Level
Complete all items outlined in the Recommended Monthly and Quarterly
Maintenance Schedules.
Level 1
Inspect all vacuum connections for minor cracks or wear points. Replace as
needed.
Level 3
Repeat the calibration of all temperature-monitoring probes ( e.g., product
temperature probes, shelf temperature probe(s) condenser temperature probe(s),
etc.).
Level 2,
Level 3
Repeat the calibration of all vacuum-level sensors.
Level 2,
Level 3
Check the static pressure in one or, in the case of redundant systems, both
refrigeration systems. Pressures should be checked by a qualified refrigeration
technician and only after a twenty-four hour stabilization period. Compare
obtained readings to the information on the refrigeration charge nameplates.
Check for refrigerant leaks if the indicated pressure has deviated more than 10
psig.
Level 2,
Level 3
Check the fluid level of the refrigeration system. Check refrigeration system piping
and components for fluid leaks. Level 2,
Level 3
Check the fluid level of the heat-transfer system. Check heat-transfer system
piping and components for fluid leaks. A special dye was mixed with the heat
transfer fluid during manufacture to allow for easy leak detection with a black light.
Pay special attention to Swagelok connections and flex hoses, if applicable.
Level 3
If your unit is equipped with a stoppering system, check for proper operation. The
stoppering system should move freely. Make adjustments as needed. Check the
stoppering system for fluid leaks.
Level 1,
Level 3
If your unit is equipped with a water-cooled refrigeration system, remove PENN
water regulation valves from condenser receivers and inspect for scale or rust. If
scaling or rust is present, clean the valves and chemically clean the plate
exchangers as per manufacturer instructions.
Level 2,
Level 3
Lubricate all motors that require lubrication. Level 2
Inspect the product chamber and condenser door gaskets for age cracks, worn
spots and/or minor cuts. Replace as needed. Level 1,
Level 2
Inspect all rubber vacuum connections utilized for vacuum-level sensor
connections, vacuum bleed and vacuum break connections. Check for age
cracks, worn spots or minor cuts. Grease the inside diameter of vacuum tubes
with vacuum grease and re-install. Replacement tubing kits are available based
on model.
Level 2,
Level 3