Description
Patent no.*********3 Ratio control method of pressure for
heating and cooling system.
Patent no.*********7 control method of circulation pump for
heating.
FEATURES
1) Individual inverter control function : Number of revolution is
controlled by inverter. (Possible to control 3 units of
inverter.)
2) Selection of operation mode : Setting operation method depending
in accordance with use (Heating circulation)
3) Strong control function : Controlling differential pressure,
temperature and pressure
4) Automatic restoration operation from power cut : It operates
automatically by memorizing previous operational condition when
power is connected again.
5) Alternating operation : Alternating operation is achieved by
setting operating time of main pump. 6) Broken pump skips its
operation : When specific pump is broken down, system is operated
normally by skipping its operation.
7) Water shortage protecting operation : Idling is prevented by
water shortage sensor.
8) Warning indication : Warning is indicated in case of
inverter over current, water shortage, high & low pressure and
abnormality of pressure sensor
9 Saving operation data : Operation data is saved and indicated by
built-in memory chip.
*0) Operation by communication : Inverter of each pump
transmits/receives data by communication. *1) Emergency operation :
When pressure transmitter is broken down, it is operated manually
by force on operation panel.
*2) Central surveillance : Operational condition is transmitted by
communication by means of central control board.
*3) Self diagnosis function Reliability is raised by continuous
surveillance of breakdown and operational condition.
*4) Built-in MICOM Strong CPU of *6 bit being equipped inside, it
carries out faster order.
For more information, please feel free to contact us.
HNL GLOBAL GROUP
