Graymills Liftkleen L-Series OMI - Manual (Page 22)

21
FIGURE 4c
PNEUMATIC SYSTEMS
APPLICATION: Cold units with pneumatic lid
DESCRIPTION: Pneumatic system consisting of:
1. Control box with a 2 position (ON-OFF)
Oscillate Selector Switch, Start, Reset, and
Emergency Stop Buttons
2. Mechanical type valves
3. Lid Lockout
4. Fire Safety Circuit
5. Pneumatic Lid (required)
SEQUENCE OF OPERATIONS:
START: Lid Closed, Rack Down
LOADING:
1. Depress Reset button, lid will close
automatically
AGITATION:
1. Turn Oscillate Selector switch to ON position
2. Depress Start Button, lid will close
automatically
SOAK:
1. Turn Oscillate Selector to OFF position
2. Depress Start button, lid will close
automatically
LID LOCKOUT: Lid activated switch overrides all
other selector switches and prevents rack from
going to the UP position before the lid is fully
opened.
FIRE SAFETY CIRCUIT: Automatically lowers
rack to the bottom of the tank and closes lid in the
event of a fire inside the tank and overrides the
selector switches and intermediate stop. The
safety circuit is activated by a Graymills fusible
vent tube which, when it melts, vents a
momentary air signal.
See Drawing #796PD37672