FOR MORE INFO REFERENCE OIM MANUAL P/N FSG–MNL–00210
9
SAM CAN HELP PROTECT BOTH THE WATER SUPPLY AND THE PUMP; PREVENTING PUMP CAVITA-
TION AND/OR VACUUM IN WATER MAINS OR COLLAPSE FROM KINKED LDH (LARGE DIAMETER
HOSE). AN APPROPRIATE ALERT IS DISPLAYED (AND ANNOUNCED) AND SAM REDUCES ENGINE
SPEED TO MAINTAIN INTAKE PRESSURE. NO DISCHARGES ARE CLOSED, AND SAM CONTINUES TO
SUPPLY THE MAXIMUM AVAILABLE WATER.
OPERATOR SHOULD INCREASE WATER SUPPLY OR CLOSE LOWEST PRIORITY DISCHARGE.
4.4
Special Auto Mode Features
SAM has several features to make priming easier.
•
When operating from hydrant or relay, SAM monitors the water supply pressure, if the water supply is
lost, SAM alerts the operator, closes the intake, returns to the onboard tank water, and continue opera-
tion from the tank; providing additional time for the operator to respond to the loss of the water supply.
•
SAM monitors the pump temperature and circulates water to cool the pump as needed.
•
If operating from draft, SAM performs priming functions, if prime is lost SAM attempts to regain prime.
•
SAM stops the primer pump after 45 seconds to prevent damage (and allow for leak inspection).
4.5
DRAFTING WITH SAM
To activate a draft, toggle SAM to DRAFT (see Figure 9, page 6) and connect an appropriate supply hose to
the desired master intake. (See NOTES below.) On the SAM Control Center, the icons change to indicated
drafting and the used simply touches and drags the corresponding DRAFT intake balloon to the associated
pump intake target.
NOTES: If the intake is NOT adjacent to the SAM Control Center, pressing the button on the MIV-Auto (see
Figure 10, located at the intake) actives the intake as if swiping on the SAM Control Center. An auxiliary in-
take (Pony) can NOT draft in SAM Auto Mode.
SAM then primes (instead of bleeding air) up to the MIV (MIVs ONLY), opens the intake valve, closes the
tank-to-pump valve, and fills the water tank as the water supply permits. All this can be done while flowing
water or before the discharge is opened. SAM then runs the primer as needed to maintain prime. Discharge
operation is the same whether in draft or hydrant mode. If prime is lost and can NOT be re-established, SAM
warns the operator before idling the engine.
5.
OVERRIDES
The intake valves are normally operated by the SAM Control Center screen. Additional control (Figure 15) can
be used to operate the intake valve and bleed air. Using the override can interrupt an automatic sequence.
Figure 15. MIV 2.0 Placard
The primer button (Figure 16) can be used at any time to assist in priming the pump.
Figure 16. Primer Button
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