Algas SDI Direct Fired 120/60H, Operation & Maintenance Manual

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Operation
Algas-SDI Operation and Maintenance Manual
– P/N – 52642
3-15
Direct Fired Vaporizer shut down procedure
(See Figure 9)
1.
Turn temperature control dial to “OFF” position. Pilot flame should
immediately extinguish.
2. Once the pilot flame has extinguished turn the igniter
switch to “OFF”.
3. Close the isolation valve ahead of the burner regulator on the side of the
vaporizer. This will prevent any fuel from going downstream to the
thermostat, pilot and the main burner.
Figure 9
–
Vaporizer shut down procedure
Direct Fired Vaporizer purge procedure
If the vaporizer is not going to be used for a long period of time, it should
be purged. The information contained below is a step-by-step procedure on
how to purge Algas-SDI direct fired vaporizer. This procedure should be
followed anytime a vaporizer needs to be maintained, serviced, relocated,
or shut down for any other reason.
WARNING
Prior to purging the vaporizer, ensure that there are no closed ball
valves or back check valves restricting the flow of liquid to the tank.
1. Ensure all tank valves are open with no restrictions of flow back to the
storage tank. A check valve restricting flow back to the storage tank
must never be used in a vaporizer installation.
Isolation valve
Thermostat
Regulator