10
96.091.1 - GB
InstRUCtIOns FOR UsERs
IMpORtant:
Regularly check that the pressure displayed on the pressure gauge is 1 - 1.5 bar, with the boiler cold.
In case of overpressure, open the boiler drain valve. If pressure is lower, open the boiler filling tap (figure 5).
Open the tap very slowly in order to vent the air.
In case pressure drops occur frequently, have the boiler checked by an authorised Service Engineer.
4. FILLInG tHE sYstEM
The boiler is fitted with a differential hydraulic pressure gauge which prevents the boiler from working if the pump is blocked or if there
is no water.
Figure 5
0806_0501 / 0210_1119
To turn off the boiler, disconnect the electric power supply.
5. tURnInG OFF tHE BOILER
Do not drain the whole system as filling up with water again causes unnecessary and harmful scale to build up inside the boiler and the
heating elements.
If the boiler is not used during winter and is therefore exposed to the danger of frost, add some specific anti-freeze to the water in the
system (e.g.: propylene glycol coupled with corrosion and scale inhibitors).
The electronic boiler management system includes a “frost protection” function which, when the delivery temperature falls below 5°C,
operates the burner until a delivery temperature of 30°C is reached.
The frost protection function is enabled if:
* the boiler is electrically powered;
* the gas tap is open;
* the system is at the correct pressure;
* the boiler is not blocked.
6. pROLOnGED sHUtDOWn. FROst pROtECtIOn
7. Gas
The boilers can operate both on natural gas and
LpG
.
All gas conversions must be made by an authorised Service Engineer.
To keep the boiler efficient and safe, have it checked by the authorised Service Centre at the end of every operating period. Careful ser-
vicing ensures economical operation of the system.
Do not clean the outer casing of the appliance with abrasive, aggressive and/or easily flammable cleaners (e.g.: petrol, alcohol, and so on).
Always switch off the appliance before cleaning it (see section 5 Switching off the boiler).
8. ROUtInE MaIntEnanCE InstRUCtIOns
Boiler filling tap
Boiler drain tap
Storage boiler
drain tap
Summary of Contents for NOVADENS BOYLER 240
Page 64: ...64 926 091 1 RU 3 1 2 3 1 0510_2801 1 2 3 5 6 7 8 9 10 b a...
Page 68: ...68 926 091 1 RU 3 8 1 4 020503_0500 4 0510_2001 4 1 1 4 1...
Page 70: ...70 926 091 1 RU 1 1 5 5 4 5 0806_0501 0210_1119 5 5 30 6 7 5 8...
Page 71: ...71 926 091 1 RU a 1 20 F 1 F 10 2 2 1 2 2 SENTINEL 400 100 22 9 10...
Page 75: ...75 926 091 1 RU 14 3 60 100 L 10 L 10 L 9 L 8 0210_1112 100 80 0510_2802 90 360 45...
Page 85: ...85 926 091 1 RU 18 90 3 5 30 24 10 24 3...
Page 86: ...86 926 091 1 RU 19 16 010905_0200 20 26 1993 412 2 2 17 020429_0300...
Page 87: ...87 926 091 1 RU 21 1 2 3 3 6 2 020429_0200 18 A 4 19 0210_1801 22 23...
Page 88: ...88 926 091 1 RU 24 4 1 1 1 4 4 19 0302_2701 25...
Page 90: ...90 926 091 1 RU 27 N R G V 0305_1204 230...
Page 124: ...124 926 091 1 EL 3 1 0510_2801 1 2 3 5 6 7 8 9 10 b a reset on off Standby...
Page 128: ...128 926 091 1 EL 3 8 1 a 4 reset 020503_0500 4 0510_2001 4 1 1 b 4 1 reset...
Page 130: ...130 926 091 1 EL 1 1 5 bar 5 4 5 0806_0501 0210_1119 5 5 C 30 C 6 7 GPL 5 8...
Page 145: ...145 926 091 1 EL instructions for fitters 18 reset 90 C reset reset 3 5 C 30 C 24 10 24 3 bar...
Page 146: ...146 926 091 1 EL instructions for fitters 19 16 010905_0200 20 2 CO2 CO 17 020429_0300...
Page 148: ...148 926 091 1 EL instructions for fitters 24 4 bar 1 1 1 4 bar 4 bar 19 0302_2701 25...
Page 150: ...150 926 091 1 EL instructions for fitters 27 C M N R G V B 0305_1204 230V NTC CRO NTC...