DEAD-HEAD & RESTART (DH&R)
Issue : 020913-B
TPUK-GU31X
30
Principle of operation
The Guardian monitors the fluid discharge pressure of the pump, changing it’s
output if the monitored pressure rises to the set point of the Guardian,
representing a closed valve or over pressure in the pump discharge line,
stopping the associate pump and automatically restarting it as the dead-head
condition is removed.
Fig. DH&R-01
Graph of time against pressure showing dead head and restart principle
Summary of Contents for Guardian system Mk3.1
Page 11: ...BARRIER STOP BARR Issue 020913 B TPUK GU31X 9 BARRIER STOP BARR...
Page 18: ...BARRIER STOP BARR Issue 020913 B TPUK GU31X 16...
Page 19: ...DRY RUN STOP DR S Issue 020913 B TPUK GU31X 17 DRY RUN STOP DR S...
Page 24: ...DRY RUN STOP DR S Issue 020913 B TPUK GU31X 22...
Page 25: ...DEAD HEAD STOP DH S Issue 020913 B TPUK GU31X 23 DEAD HEAD STOP DH S...
Page 31: ...DEAD HEAD RESTART DH R Issue 020913 B TPUK GU31X 29 DEAD HEAD RESTART DH R...
Page 43: ...WARRANTY Issue 020913 B TPUK GU31X 41 Warranty return form Sketch of installation...
