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

Page: 36 / 76

Start Aqua Condens 25/60 BIS
36
THERMAL OUTPUT CURVE - EMISSIONS (MTN)
CO Emission s.a. (p.p.m.) G20
Fan rotations (r
.p.m.) G20
40
50
60
70
80
90
100
110
120
130
140
150
4 6 8 10 12 14 16 18 20 22 24 26
THERMAL OUTPUT CURVE - NO. OF FAN ROTATIONS (MTN)
Heat output (kW)
Heat output (kW)
1200
1600
2000
2400
2800
3200
3600
4000
4400
4800
5200
5600
6000
4 6 8 10 12 14 16 18 20 22 24 26
4.10 conversions from one type of gas to another
The boiler is designed to operate with methane gas (G20) according
to the rating plate.
It may however be converted from one type of gas to another by
using the special kits supplied on demand.
- Methane conversion kit
- LPG conversion kit
The conversion must be carried out solely by the Technical As-
sistance Centre or by rpersonnel authorised by even when the
boiler is already installed.
Refer to the instructions supplied with the kit for assembly.
After conversion, adjust the boiler again following the indica-
tions in the specific section and apply the new identification
label contained in the kit.
Conversion from a family gas to other family gas can be performed
easily also when the boiler is installed.
This operation must be carried out by professionally qualified per-
sonnel.
For disassembly, refer to the instructions provided below:
- Gas tap
- Remove in the following order: air distribution box cover and casing
- Remove the gas train (
A
)
- Remove the nozzle (
B
) contained within the gas train and replace
it with the one contained in the kit
- Reassemble the gas train
- Reassemble the air distribution box cover
- Power-up the boiler and open the gas tap.
B
A
Adjust the boiler as described in chapter "Settings" referring to the
data concerning the LPG.
Conversion must be carried out by qualified personnel.
After the transformation, apply the new rating plate included in
the kit.
4.11 Boiler cleaning
Before any cleaning operation, switch off the electrical supply by
turning the system's main switch to "Off".
External cleaning
Clean the housing, the control panel, the painted parts and the plas-
tic parts with a cloths dipped in soap and water.
In the case of stubborn stains dampen the cloth with a mixture of 50%
water and methylated spirit or with specific products.
Do not use fuels and/or sponges soaked in abrasive solutions
or powder detergents.
Internal cleaning
Before starting internal cleaning operations:
- Close the gas shut-off valve
- Close the system taps.
4.12 Cleaning the water tank (fig. 25)
After removing the flange it will be possible to inspect and clean insi-
de the water tank and check the condition of the magnesium anode.
- Turn off the hot water system stopcock and empty the water tank
through the drainage device (fig. 22)
- Loosen the nut and extract the anode (
1
)
- Remove the nuts (
2
) blocking the external flange (
3
) and extract it
- Clean the inside surfaces and remove all the debris through the
opening
- Check the wear conditions of the magnesium anode (
1
), replace
if necessary
- Check that the gasket (
4
) is in good condition after extracting it
from the inside flange (
5
), replace if necessary.
Complete the work of cleaning, re-mount the components working
the other way round to above description