Ariston ALTEAS X FF - Types of Post-Circulation

Training manual ALTEAS X and GENUS X
Pag. 33 di 84
There is one bicolor led (green and red) in the frontal part of the pump:
 Led off: pump off or not supplied;
 Led green on fix: pump on with stable speed;
 Led green on blinking: pump on with speed changing;
 Led red on fix: pump blocked; with the system empty or with air inside the system
switch-on alternatively the red led and the green blinking.
With the PWM wire disconnected (main PCB connector CN12) the pump goes at the maximum speed.
4.5.1 Types of 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’)
Min/Mean
Heating Off by Summer/Winter
button
Heating
3 min
(set by parameter 237
beetwen 0 e 15’)
Min/Mean
NTC delivery > T set +4
Heating
continuasly
Min/Mean
NTC return > 62°C or 67°C
Sanitary
continuasly
Max
End of sanitary demand
Sanitary
Par. 254=0  30 sec
if:Tdel<75°C ; 3 min
if Tdel>75°C;
Post circulation: 30sec
Max
Par. 254=1  3 min
End of comfort cycle
Sanitary
30 sec
Max
End of antifreeze function
Heating /
Sanitary
2 min
Max
End of chimney sweeping
function
Heating
1 min
Min
Solar sensor
Sanitary
30 sec
Min
Errors
Pressure sensor (102), Low
pressure (108, 111)
Heating
40 sec
Min
No circulation (103, 104, 105,
106, 107)
Heating
1 min
Max
Flame missing, flame lift
(501, 504)
Heating
2 min
Min
Overheat (101), Thermo fuse
opening (610)
Heating
2 min
Min
No circulation (1P1, 1P2, 1P3)
Heating
10 sec
Max
Floor thermostat opened (116)
Heating
90 sec
Min
PWM control
Power supply