Maintenance
Algas-SDI Operation and Maintenance Manual – P/N – 54000
4-18
service. Nominal wall thickness 0.375” (9.5 mm). An Ultrasonic
thickness tester can be used to determine wall thickness.
4. Check heat exchanger for heavy ends accumulation inside the
vessel. Remove the liquid inlet valve and tilt the vaporizer on its
side to drain the heavy ends. Re-install liquid inlet valve and
uniformly torque bolts to 30-35 ft.-lbs (40.7-47.5 Nm) using a
star/cross pattern.
NOTE: In areas where LPG quality is poor it may be necessary for heat
exchangers to be checked for heavy ends more frequently. Once it is
verified that no significant quantity of heavy ends are accumulating during
vaporizer operation, this maintenance can be performed on an annual
basis.
Drip Leg
Remove plug below the tee on the drip leg and drain the drip leg to
prevent it from filling with contaminants and passing them into the
thermostat. NOTE: In areas where LPG quality is poor it may be
necessary for drip legs to be checked for heavy ends more frequently.
Once it is verified that no significant quantity of heavy ends are
accumulating during vaporizer operation, this maintenance can be
performed on an annual basis.
Vaporizer Cabinet
Inspect the door, inside enclosure, inlet louvers and vent caps for debris
and/or combustible material. If needed, clean areas so they are free of all
debris.
CAUTION
When servicing a component in the liquid or vapor line, BE SURE
that the LP-gas supply is shut off to that component before it is
removed or disassembled. The vaporizer must be completely
purged before performing service. Be sure that ALL sources of
ignition are extinguished within 25 feet (7.6 m) of the work area.
When flaring the contents of the vaporizer, be sure that the burners
are on to prevent freezing during the flaring operation.
Summary of Contents for 160H
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Page 42: ...Algas SDI Operation and Maintenance Manual P N 54000 5 32 APPENDIX A TECHNICAL INFORMATION...
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