FRC PumpBoss PBA100 - Switching Operating Modes; High Discharge Pressure at Idle

PBA100 Rev0407
19
Switching Between Operating Modes
• No variation in discharge pressure or RPM will occur when changing between
pressure and RPM modes.
• When changing to RPM mode, the RPM setting will be the RPM that the pump
was operating at in pressure mode.
• When changing to pressure mode the pressure setting will be the pressure that
the pump was operating at in RPM mode.
When the PumpBoss is in idle:
Press the mode button and the PumpBoss switches modes immediately.
When the PumpBoss RPM display shows a value (operating at some setting):
Press and hold the mode button for 3 seconds and the PumpBoss changes modes.
(This is to avoid an accidental change over if the buttons get bumped.)
Pump Discharge Pressure is High at Engine Idle
Once the governor has set the engine to idle, it can do no more to reduce discharge
pressures. To reduce discharge pressure the pump operator can gate incoming water,
reduce pressure at the intake relief valve, gate discharges, or disable the pump.