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7. Alarms and Features
Refer to Table 4 for a description, and action of all alarms incorporated into the vaporizer unit. Note
that while some alarms take preventative action themselves, an operator should always monitor an
alarm situation and take preventative action if need be or the situation persists. For information on
troubleshooting techniques see Section V.
The vaporizer controller is equipped with a red LED for alarm indication. All relevant alarms will
appear on the alarm screen in two second intervals should multiple alarm conditions exist.
Alarm
Description
Action Taken by Controller
Low Superheat
The temperature of the outlet gas is less
than the alarm value.
Shut off the electronic pressure reducing
valve until desired superheat is achieved.
High Cl
2
Pressure
Pressure in the chlorine pressure chamber
exceeds the alarm value.
Shut off the heater. Action must be
taken by user to reduce pressure. See
troubleshooting.
Low Water Temp
The water temperature is lower than the
alarm value.
Shut off pressure reducing valve until
desired water temperature is achieved.
High Water Temp
The water temperature is above the alarm
value.
Water heater is shut off until water
temperature is below the alarm value.
Low Water Level
Water height is below the minimum
operating level.
Shut off heater and pressure reducing
valve. Open water solenoid until desired
water level is achieved.
Water Overfill
The water level is too close to the tank’s
ceiling.
None. Action must be taken by user.
See troubleshooting.
EXP Burst Disc
The rupture disc of an expansion chamber
assembly has blown. Pressure switch must
be wired into main controller for actuation.
None. Action must be taken by user.
See troubleshooting.
PRV Burst Disc
The rupture disc of the pressure relief
assembly has blown. Pressure switch must
be wired into main controller for actuation.
None. Action must be taken by user.
See troubleshooting.
TAbLE 4: Vaporizer Alarms
