Ariston GENUS PREMIUM EVO 24

Training manual ALTEAS & GENUS ONE
Page. 35 of 88
5.3 PUMP UNIT
The pump is full modulating. The modulation is according to the boiler power in heating.
In sanitary the pump goes always at the maximum speed.
We can have 2 alternative pumps on this boiler:
Pump model: ES 2PK/53-9A-C STEP2.
Electrical power supply: 325Vdc.
Electrical consumption:52W (max speed).
Pump model: EUMEZECP2AE-C
Electrical power supply: 325Vdc.
Electrical consumption:50W (max speed).
Setting the parameter 246 like the parameter 245 the pump works always at fixed speed.
Setting the parameter 245 and 246 to 75 the pump works at the speed that is like the low speed in the pump
modulating in 2 step, at this speed is guaranteed the by-pass working.
PAR.
NOTE
245
Max pump speed (settable between 75
and 100)
246
Min pump speed ( settable between 40
and par. 245
PWM control
Power
supply
UPDATE