Riello Start Aqua Condens 25/60 BIS Installer And User Manual page 34

Start Aqua Condens 25/60 BIS
4.8 Maintenance
Periodic maintenance is an "obligation" required by law and is
essential to the safety, efficiency and lifetime of the boiler.
It allows for the reduction of consumption, polluting emissions and
keeping the product reliable over time.
Before starting maintenance
- perform the analysis of the combustion products to check the
boiler operation status then cut the electrical supply by turning off
the system's general switch
- close the fuel and water taps of the heating and domestic hot
water system.
The appliance must be systematically controlled at regular intervals
to make sure it works correctly and efficiently and conforms to
legislative provisions in force. The frequency of controls depends on
the conditions of installation and usage, it being anyhow necessary
to have a complete check carried out by authorized personnel from
the Servicing Centre every year.
- Check and compare the boiler's performance with the relative
specifications. Any cause of visible deterioration must be
immediately identified and eliminated.
- Closely inspect the boiler for signs of damages or deterioration,
particularly with the drainage and aspiration system and electrical
apparatus.
- Check and adjust – where necessary – all the burner's
parameters.
- Check and adjust – where necessary – the system's pressure.
- Analyze combustion. Compare results with the product's
specification. Any loss in performance must be identified and
corrected by finding and eliminating the cause.
- Make sure the main heat exchanger is clean and free of any
residuals or obstruction; if necessary clean it.
- Check and clean – where necessary – the condensation tray to
make sure it works properly.
9
Always switch off the power to the appliance and close the
gas by the gas cock on the boiler before carrying out any
maintenance and cleaning jobs on the boiler.
9
After performing the necessary maintenance operations, the
original adjustments must be restored and the combustion
product analysis must be performed to check the correct ope-
ration.
9
Do not clean the appliance or any latter part with flammable
substances (e.g. petrol, alcohol, etc.).
9
Do not clean panelling, enamelled and plastic parts with paint
solvents. Panels must be cleaned with ordinary soap and wa-
ter only.
34
operations:
4.9 Adjustments
The Start Aqua Condens 25/60 BIS boiler is supplied for operation
with Methane gas (G20) and is factory set as shown on the rating
plate.
If adjustments have to be redone, for example after extraordinary
maintenance, after the gas valve replacement or after conversion
from methane gas to LPG and vice versa, the following procedures
must be followed.
9
The maximum heating electrical value adjustment, the min-
imum and maximum electrical heating, must be carried out
in the sequence indicated and exclusively by the Technical
Assistance Centre.
- Disconnect the power supply to the boiler
- Turn the heating water temperature selector to its maximum
- Remove the housing and turn the instrument panel (refer to
previous chapters for the detail of the figures)
- Unscrew the fixing screws of the hatch on the terminal board
cover
- Insert jumpers JP1 and JP3
CN7
CN6
CN8
- Power up the boiler.
The display shows "ADJ" for about 4 sec.
Proceed with the modification of the following parameters:
1. Absolute/domestic maximum
1
2. Minimum
CN9
3. Maximum heating
4. Slow ignition
7
as described below:
- turn the heating water temperature selector to set the desired
1
value
CN10
- press the CO button and move on to the next parameter setting.
4
1
CN7
CN11
CN6
12
CN8
JP7 JP6 JP5 JP4
CN5
JP8
P4
SW1
CN13
P1
CN14
P3
AKL
3.15A T
F1
CO button
JP7 JP6 JP5 JP4
CN5
JP8
P4
SW1
CN13 FA2
P1
CN14
P3
CN12
1
JP2
JP3 JP1
P2
3
CN4
1
2
CN3
1
6
CN2
CN12
1
1
JP3 JP2 JP1
CN1
1
FA1
P2
3