Ariston CLAS - PUMP Speed Check; Types of Post-Circulation

Training manual CLAS
Pag. 30 di 71
4.5.1 PUMP speed check
The speed of the pump can be checked by means of parameter 8 23 or by measuring the voltage (Vac)
between pins 5 and 6 of the electronic card CN10 connector:
- 145 Vac: maximum speed;
- 0 Vac: minimum speed.
4.5.2 Types of post-circulation
CAUSE
POST-CIRCULATION
TIME
HEATING
OPERATING
MODE
Room thermostat opening
2’
(can be set by parameter
237 between 0 and 15’
Passage from heating to stand-by cXY
2’
Burner off (setpoint + 4°C)
Non stop
Boiler shutdown because there is no water circulation 1 03 – 1 04
– 1 05 – 1 06 – 1 07
1’
Boiler blocked because no flame is detected 5 01
2’
Temperature raise 1 01
2’
End of chimney sweeping function
2’
If parameter 10 on menu 2 is set on CO
Non stop
SANITARY
OPERATING
MODE
End of sanitary demand and end of comfort cycle hXY par 2 54= 0
30” (Tflow<75°C)
3’ (Tflow>75°C)
End of sanitary demand and end of comfort cycle hXY par 2 54= 1
3’
Antiscale system turns of at 62 or 65°C on sanitary probe NTCs
Non stop
End of antifreeze function
2’
145 Vac: maximum speed;
0 Vac: minimum speed