Riello Residence Condens KIS n, Installer And User Manual

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Residence Condens KIS n
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ENGLISH
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3.9 Eliminating the air from the heating circuit and
boiler (fig. 18)
During the initial installation phase, or in the event of extraordinary
maintenance, you are advised to perform the following sequence of
operations:
1. Open the lower automatic air vent valve cap (A) and leave it
open.
2. Turn on the system filling tap on the hydraulic unit.
3. Switch on the electricity supply to the boiler, leaving the gas tap
turned off.
4. Activate a heat request via the ambient thermostat or the remote
control panel, so that the 3-way valve goes into heating mode.
5. Activate a request for DHW as follows: open a tap for 30" per
minute so that the three-way valve cycles from heating to DHW
and vice versa for about ten times (in this situation, the boiler will
go into alarm due to lack of gas, therefore reset it whenever this
is proposed).
6. Continue the sequence until no more air is felt coming from the
automatic air vent valve.
7. Check the system pressure level is correct (the ideal level is 1
bar).
8. Turn off the system filling tap.
9. Turn on the gas tap and ignite the boiler.
3.10 Flue gas outlet and combustion air suction (fig. 19)
The boilers must be equipped with adequate flue gas outlet and air
suction pipes according to the type of installation, to be chosen from
those indicated in the Riello catalogue.
(TYPE B23P-B53P) INSTALLATION
Flue gas discharge pipe ø 80mm
The flue gas outlet pipe can be directed to the most suitable direction
according to installation requirements.
For installation, follow the instructions supplied with the kit.
In this configuration, the boiler is connected to the flue gas out-
let pipe of ø 80 mm through an adaptor of ø 60-80 mm (fig. 20).
In this case, the combustion air is picked up from the boiler
installation room (which must be a suitable technical room with
proper ventilation).
The non insulated flue gas outlet pipes are potential sources of
danger.
Make sure the flue gas discharge pipe is tilted 3° towards the
boiler.
maximum length of the flue
gas discharge pipe ø 80mm
pressure drop
bend 45° bend 90°
80 m 1m 1,5m
"Straight length" means without bends, drainage terminals or
joints.
“AIRTIGHT” INSTALLATION (TYPE C)
The boiler must be connected to concentric or twin flue gas discharge
pipes and air suction pipes, both leading outdoors. The boiler must
not be operated without them.
Concentric pipes (ø 60-100 mm) (fig.21)
The concentric pipes can be fitted in most suitable direction in rela-
tion to installation requirements.
It is compulsory to use specific pipes.
Make sure the flue gas discharge pipe is tilted 3° towards the boiler.
Non-insulated outlet pipes are potential sources of danger.
The boiler automatically adapts ventilation according to the
type of installation and the length of the duct. Do not obstruct
or choke the combustion air suction pipe in any way.
straight length of concentric
pipe ø 60-100mm
pressure drop
bend 45° bend 90°
7.85 m (horizontal)
8.85 m (vertical)
1,3m 1,6m
"Straight length" means without bends, drainage terminals or
joints.
For installation, follow the instructions supplied with the specific ac-
cessory kit for condensing boilers.
The use of a longer pipe causes a loss of output of the boiler.
Concentric pipes (ø 80-125) (fig. 22)
The appropriate adaptor kit must be installed for this configuration.
The concentric pipes can be fitted in most suitable direction in rela-
tion to installation requirements. For installation, follow the instruc-
tions supplied with the specific kit for condensing boilers.
straight length of concentric
pipe ø 80-125mm
pressure drop
bend 45° bend 90°
14,85 m 1m 1,5m
"Straight length" means without bends, drainage terminals or
joints.
Twin pipes (ø 80 mm) (fig. 23)
The twin pipes can face in the direction most suited to the installation
requirements.
The suction pipe of the combustion air must be connected to the
input after removing the cap fixed with three screws. The flue gases
discharge pipe must be connected to the flue gases outlet.
It is compulsory to use specific pipes.
Make sure the flue gas discharge pipe is tilted 3° towards the
boiler.
The boiler automatically adapts the purging to the type of in-
stallation and the length of the pipes. Do not obstruct or choke
the pipes in any way.
For the indication of the maximum lengths of the single pipe,
refer to the charts (fig. 24).
straight pipe length
twin pipes ø 80mm
pressure drop
bend 45° bend 90°
53+53 m (25 KIS n)
42+42 m (30 KIS n)
1m 1,5m
"Straight length" means without bends, drainage terminals or
joints.
The use of a longer pipe causes a loss of output of the boiler.
Twin pipes ø 80 with ducting Ø 60 and Ø 80, (fig. 25)
Thanks to the boiler characteristics, a flue gas discharge pipe ø 80
can be connected to the ducting ranges ø 60 and ø 80.
For the ducting, you are advised to make a project calculation
in order to respect the relevant standards in force.
The table shows the standard configurations allowed.
Table of standard pipe configurations (*)
Air suction
1 bend - 90° ø 80
4.5 m pipe ø 80
Flue gas
discharge
1 bend - 90° ø 80
4.5 m pipe ø 80
Reduction from ø 80 to ø 60
90° stack base bend ø 60 or ø 80
For ducting pipe lengths see table
(*) Use flue gas system accessories in plastic (PP) for condensing
boilers.
The boilers are factory set to:
- 25 KIS n: 4.700 rpm (DHW), 3.900 rpm (CH), and the maximum
length that can be reached is 11m for the ø 60 pipe and 58m for the
ø 80 pipe;
- 30 KIS n: 5.600 rpm (DHW), 4.700 rpm (CH), and the maximum
length that can be reached is 14m for the ø 60 pipe and 75m for the
ø 80 pipe.
Should it be necessary to achieve greater lengths, compensate the
pressure drop with an increase in the r.p.m.of the fan, as shown in the
adjustments table, to ensure the rated heat input.
The minimum calibration is not modified.