Idex Hale Sam, Technical Manual

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remote capability supporting component(s) has (have) been installed, configured, or removed
and replaced and the apparatus is ready to be returned to the department for firefighting pur-
poses.
Figure 23. SAM Tablet
2.4.12 SAM Auto Mode
OPERATORS SHOULD FIRST BE TRAINED TO OPERATE THE FIRE PUMP MANUALLY (US-
ING PUSH BUTTONS, CONTROL RODS, AND MANUAL [NOT ELECTRICAL] VALVE OVER-
RIDES.)
• AUTOMATION ONLY MITIGATES PROBLEMS AROUND THE PUMP AND VALVES
•
OPERATORS NEED TO UNDERSTAND HOW TO DIAGNOSE PROBLEMS
•
SAM MANAGES PROBLEMS BY HELPING TO KEEP THE PUMP SAFE BUT IF AN
INADEQUATE WATER SUPPLY OR PUMP CAVITATION OCCURS THE OPERATOR
MUST UNDERSTAND WHAT IS HAPPENING AND CORRECT THE PROBLEM
•
SAM DOES NOT ADJUST FOR FRICTION LOSS ON HOSE LINES OR PUMPING AT
ELEVATION
•
SAM MAINTAINS PRESSURE SETTINGS BASED ON SENSORS MEASURING
PRESSURE NEAR THE DISCHARGE VALVE
•
THE SYSTEM CAN NOT ALLEVIATE STATIC PRESSURES
•
RESIDUAL PRESSURE IN THE SYSTEM MAY BUILD IN THE DISCHARGE
LINES WHEN THAT PARTICULAR LINE IS NOT FLOWING WATER OR NOT
FLOWING ENOUGH WATER TO BE GATED
•
THE OPERATOR MUST BE AWARE THAT THIS PRESSURE MAY PRESENT
A DANGER TO LARGER DISCHARGES. (THEREFORE, SETTING A
SMALLER DISCHARGE LINE AT A PRESSURE HIGHER THAN YOU WOULD
EXPOSE A LARGER HOSE [OR LARGER DISCHARGE] TO IS NOT RECOM-
MENDED)