Ariston CLAS X - 4.5.2 Post-circulation.

Training manual CLAS X
Pag. 32 di 69
4.5.2 Post-circulation.
Post-circulation after:
3 way valve
position
Time of post circulation
Speed pump
Switching off due to:
Room thermostat opening
Heating
3 min
(set by parameter 237
beetwen 0 e 15’)
Low
Heating Off by Summer/Winter
button
Heating
3 min
(set by parameter 237
beetwen 0 e 15’)
Low
NTC delivery > T set +4
Heating
continuasly
Low
NTC return > 62°C or 67°C
Sanitary
continuasly
High
End of sanitary demand
Sanitary
Par. 254=0  30 sec
if:Tdel<75°C ; 3 min
if Tdel>75°C;
Post circulation: 30sec
High
Par. 254=1  3 min
End of comfort cycle
Sanitary
30 sec
High
End of antifreeze function
Heating /
Sanitary
2 min
High
End of chimney sweeping
function
Heating
1 min
Low
Solar sensor
Sanitary
30 sec
Low
Errors
Pressure sensor (102), Low
pressure (108, 111)
Heating
40 sec
Low
No circulation (103, 104, 105,
106, 107)
Heating
1 min
High
Flame missing, flame lift
(501, 504)
Heating
2 min
Low
Overheat (101), Thermo fuse
opening (610)
Heating
2 min
Low
No circulation (1P1, 1P2, 1P3)
Heating
10 sec
High
Floor thermostat opened (116)
Heating
90 sec
Low
24/28 CF