Ariston GENUS PREMIUM EVO 24

Training manual ALTEAS & GENUS ONE
Page. 21 of 88
3 SYSTEM VERSION
3.1 “TANK” MODE
To select this typology of operation set 1 on the parameter 228. In this version the setting of the tank
temperature (SET-POINT) is done throughthe buttons “+” and “-“.
Sanitary sensor (NTCs):
Temperature range 40-65°C.
The control of the temperature of the tank is managed in the following way:
 T tank ≥ T set+2 : off burner, off pump
 T tank ≤ T set – Thyst : on burner, on pump where: Thyst=(T set/10)+3
 T tank≥80°C: safety shut down 209, that disappear when the temperature go down 75°C
Flow heating sensor (NTC1):
The PCB manages the flow temperature (NTC1) in the following way:
 T flow > T set + 20 : start modulation;
 T flow ≥ 88°C : burner off, pump on (on continuous)
 T flow ≤ T set + 14 : burner on
3.2 “SYSTEM” MODE
To select this typology of operation set 2 on the parameter 228. In this version the tank temperature is
manage thorough mechanical thermostat (ON/OFF).
Flow heating sensor (NTC1):
The PCB manages the flow temperature (NTC1) in the following way:
 T flow > 82°C : start modulation;
 T flow ≥ 86°C : burner off, pump on (on continuous)
 T flow ≤ 82°C : burner on
3.3 ANTILEGIONELLA FUNCTION
This function is available only for boiler with external tank and tank NTC sensor (par.228=1).
The factory setting is with this function enabled (par.257= 1) and with the time set to 30 days (par.258).
In this situation the boiler starts to heat the tank till 60°C for 1 hour in the following condition:
- Each time that the boiler is supplied by electrical power;
- Each 30 days or after 30 days from the last time that the tank stays at 60°C at least for 60 minutes
continuously.
It is possible modify the frequency of this function through the parameter 258 from 25 hours to 480 hours
(factory setting 30 days).
It is possible disable the function setting the parameter 257 to 0.
It is advisable to install a thermostatic valve on the hot water outlet to prevent scorch.
2
5
7
Antilegionella function (only for
boilers with external tank and
NTC sensor – par. 228 = 1)
0: disabled
1: enabled
1
2
5
8
Antilegionella time
(only for boilers with external
tank and NTC sensor – par. 228
= 1). The setting temperature is
always 60°C (tank temperature).
24 ÷ 480 h and 30 days
30 day