Algas SDI VAPORAIRE M-Series, Operation & Maintenance Manual

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Operation
SDI Operations & Maintenance Manual – 54264
4-35
SHUTDOWN
If the system is to be shut down for extended periods of time, follow these
procedures:
1. Close the mixed gas discharge valve on the surge/accumulator tank.
2. Push the
STOP
switch on the mixer control box. Leave power applied to
the mixer so that the heater in the box continues to operate to prevent
moisture build-up.
3. Close the vapor outlet valve on the vaporizing equipment and turn the
vaporizer off. Shutdown of the mixing system is complete.
NOTE
Leave power applied to the VAPORAIRE so the enclosure heater is
always on to minimize condensation.
TO RESTART THE SYSTEM
1. Bring the vaporizer up to operating temperature.
2. Open the outlet valve of the vaporizer.
3. Push the
START
switch on the control box and observe that the mixed
gas pressure rises to the setpoint.
4. Open the surge/accumulator tank outlet valve, the system is then on-line.
STANDBY CONDITION
It is recommended that the system remains in a standby condition during
curtailment season or at any time that immediate changeover may be required.
The system can be kept in constant readiness by placing it in standby as follows:
1. Provide vapor supply pressure to the header from the vaporizer.
2. Assure that all diffuser outlet shut-off valves and all vapor isolation
valves are open. All other valves should be closed.
3. Push the
START
switch and observe that the mixer mixed gas pressure
comes up to the desired pressure.
4. The system is ready to go online at any time. Opening the mixed gas
outlet valve will bring the machine up to full output capacity immediately
as required.