304
All Units
SEPTEMBER 2009 Printed in U.S.A.
COPYRIGHT 2009, Heil Environmental
PUMP SHUT-OFF VALVE – USED WITH COMMERCIAL HOC SYSTEM
This pump shut-off valve style normally opens and closes when the coil is activated. The valve does not
have a plumbing schematic but must be plumbed one way to function properly. Fluid must enter port #2
and exit port #1.
Caution: Failure to plumb the pump shut off valve in this manner may cause system malfunction or
“system chatter”.
INLET PORT #2 MUST BE
PLUMBED FOR FLUID
ENTERING THE VALVE.
OUTLET PORT #1 MUST
BE PLUMBED FOR FLUID
LEAVING THE VALVE.
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