TGA300 Rev180405
18
Switching Between Operating Modes
• No variation in discharge pressure or RPM occurs when changing between
pressure and RPM modes.
• When changing to RPM mode, the RPM setting is the RPM that the pump was
operating at in pressure mode.
• When changing to pressure mode the pressure setting is the pressure that the
pump was operating at in RPM mode.
When the engine is at idle RPM:
Press PRESSURE or RPM button, governor changes modes immediately.
When the engine RPM is above idle:
Press and hold PRESSURE or RPM button for 3 seconds, governor 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 RPM at 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.
RPM Limit with Discharge Pressure Less than 100 PSI
The level II programming code P221 sets the maximum RPM when the pump is
operating with a discharge pressure less than 100 PSI. The factory set default is for
code P221 is 1500. Access to level II programming requires a password. Contact FRC
if this default limit needs to be changed.
Remote Governor Option
The remote governor option duplicates the primary governor functions.
The remote governor control module is required to be programmed as a remote
(program code P303). If error codes E5 and E6 show on power up, check the programming.
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