NINFA N 24 MCA
32
EN
cod. 3540P001 - 10/2008 (Rev. 00)
1.3 Turning on and off
Boiler lighting
Switch on the power to the unit.
fig. 5 - Boiler lighting
•
For the following 120 seconds the display will show FH which identifies the heating system air venting cycle.
•
During the first 5 seconds the display will also show the card software version.
•
Open the gas valve ahead of the boiler.
•
When the message FH disappears, the boiler is ready to operate automatically whenever domestic hot water is
drawn or in case of a room thermostat demand.
Turning the boiler off
Press the button detail 6 - fig. 1 for 5 seconds.
fig. 6 - Turning the boiler off
When the boiler is turned off, the electronic board is still powered.
Domestic hot water and heating operation are disabled. The antifreeze system remains activated.
To relight the boiler, press the button fig. 1 detail 6 again for 5 seconds.
fig. 7
The boiler will be immediately ready to operate whenever domestic hot water is drawn or in case of a room thermostat
demand.
B
The antifreeze system does not work when the power and/or gas to the unit are turned off. To avoid damage
caused by freezing during long idle periods in winter, it is advisable to drain all water from the boiler, DHW
circuit and system; or drain just the DHW circuit and add a suitable antifreeze to the heating system, complying
with that prescribed in sec. 2.3.
Summary of Contents for NINFA N 24 MCA
Page 84: ...NINFA N 24 MCA 84 RU cod 3540P001 10 2008 Rev 00 1 3 5 120 FH 5 FH 6 1 5 6 1 6 5 7 B sez 2 3...
Page 88: ...NINFA N 24 MCA 88 RU cod 3540P001 10 2008 Rev 00 1 0 F37 15 15 1 16 1 0 16 A 120 FH 1 16...
Page 91: ...NINFA N 24 MCA 91 RU cod 3540P001 10 2008 Rev 00 B 230 25 18 2 6 0 5...
Page 96: ...NINFA N 24 MCA 96 RU cod 3540P001 10 2008 Rev 00 3 2 B sez 4 4 sez 1 3 CO 2 sez 4 4 3 3 1 A...
Page 97: ...NINFA N 24 MCA 97 RU cod 3540P001 10 2008 Rev 00 21 1 1 2 2 3 3 21 1 2 3 TEST 4 10 5 1 1 2 3...
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