2. Pressure Vessel
The Onga IMH series of pumps are supplied with a pressure vessel to
assist the variable speed drive controller. The vessel needs to be
pressurised to 70% of the set pressure of the pump.
Operating set point of pump: 400kPa
12
Example:
Operating set point of vessel: 280kPa (70%)
The pressure vessel can be pressurised using a hand pump or portable
air pump.
Failure to pressurise the pressure vessel may result in the pump
continuing to run or cycle on and off. This will cause damage to the
pump and controller, and may void warranty.
Pressure Vessel Maintenance: the air pressure in the pressure vessel
can decrease over time, therefore it is highly recommended to check the
air pressure every 6 months.
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