QUADRA GREEN 25 R.S.I.
The boilers are factory set to:
25 R.S.I.: 4.900 r.p.m. (CH) and 6.100 r.p.m. (DHW) and the maximum
length that can be reached is 7 m for the ø 50 pipe, 25 m for the ø 60 pipe
and 75 m for the ø 80 pipe.
Should it be necessary to achieve greater lengths, compensate the pres-
sure drop with an increase in the r.p.m.of the fan, as shown in the adjust-
ments table, to ensure the rated heat input.
The minimum calibration is not modified.
Adjustments table
Maximum number
of fan rotations
r.p.m.
CH
DHW
4.900
6.100
25
5.000
6.200
R.S.I.
5.100
6.300
(*)
Maximum installable length ONLY with exhaust pipes in H1 class.
Configurations Ø50 or Ø60 or Ø80 show test data verified in the laboratory.
In the case of installations that differ from those indicated in the "stand-
ard configuration" and "adjustments" tables, refer to the equivalent linear
lengths below.
In any case, the maximum lengths declared in the booklet are guar-
anteed, and it is essential not to exceed them.
COMPONENT
Bend 45°
Bend 90°
Extension 0.5m
Extension 1.0m
Extension 2.0m
3.12 Installation on collective positive pressure flues
(fig. 44)
The collective flue is a flue gas exhaust system suitable for collecting and
expelling the combustion products of several appliances installed on several
floors of a building.
The positive pressure collective flues can only be used for type C condensing
appliances. Therefore the B53P/B23P configuration is forbidden. The
installation of boilers under collective pressure flues is allowed exclusively
in G20. Make sure that the air intake and exhaust pipes of the combustion
products are watertight.
WARNINGS:
The manufacturer does not assumes any responsibility in case of
failure to apply the check valve and its label before starting the boiler.
The appliances connected to a collective pipe must all be of the
same type and have equivalent combustion characteristics.
The number of devices connected to a positive pressure collective
pipe is defined by the flue designer.
The boiler is designed to be connected to a collective flue sized to
operate in conditions where the static pressure of the collective flue
pipe can exceed the static pressure of the collective air duct of 25
Pa in the condition in which n-1 boilers work at maximum rated heat
input and 1 boiler at the minimum rated heat input allowed by the
controls.
The minimum permissible pressure difference between the flue gas
outlet and the combustion air inlet is -200 Pa (including - 100 Pa of
wind pressure).
The number and characteristics of the exhaust ventilation devices
which are the real characteristics of the flue itself.
The terminal of the collective pipe must generate a an upward air
current.
The condensation can flow inside the boiler.
The maximum recirculated value allowed in wind conditions is 10%.
The maximum permissible pressure difference (25 Pa) between the
combustion products inlet and the air outlet of a collective flue can not
be exceeded when-1 boiler work at the maximum nominal heat output
and 1 boiler within minimum temperature allowed by the checks.
The collective smoke pipe must be adequate for an overpressure of
at least 200 Pa.
The collective flue must not be equipped with a wind-proofing device.
22
Ducting pipes
maximum length (m)
Ø 50
Ø 60
7
25
9
30
12 (*)
38 (*)
Linear equivalent in metres Ø80 (m)
Ø 50
Ø 60
12,3
19,6
6,1
2,5
13,5
5,5
29,5
12
A data plate must be present at the connection point with the collective
flue pipe. The plate must include at least the following information:
- the collective flue is sized for C(10) boilers type
- the maximum permissible mass flow of the combustion products in kg/h
- the dimensions of the connection to the common pipes
- a warning concerning the openings for the air outlet and the entry
of the combustion products of the collective pressure pipe; these
openings must be closed and their tightness must be checked when
the boiler is disconnected
- the name of the manufacturer of the collective smoke pipe or its
identification symbol.
INSTALLATION INSTRUCTIONS
Ø 80
This accessory must only be installed by professionally qualified
personnel.
75
The accessory, to be applied immediately to the boiler exhaust outlet with the
corresponding adapter, has the purpose of avoiding the back-flow of smoke in
90
an appliance while the other appliances connected to the flue are operating.
113 (*)
The check valve kit can only be used for devices contemplated in this
instruction manual.
It is to be used only for flue gas discharge and air suction of the
condensing boilers since the maximum temperature allowed from the
component is 120 °C.
The accessory is equipped with an integrated condensate collection system
that does not require further connections to the exhaust system in addition
to what is already provided for the boiler.
Depending on the kit requested, it is possible to connect:
• Ø80 check valve kit with integrated siphon – Ø80 PP twin pipe system
connection
5
• Ø80/125 check valve kit with integrated siphon – connection with
8
concentric pipes Ø80/125 with PP flue pipe in combination with Ø60/100
to Ø80/125 adapter.
For both types of exhaust, further accessories are available (curves,
extensions, etc.) which make possible the flue gas exhaust configurations
foreseen in the boiler booklet.
The pipes must be installed in such a way as to avoid condensation
sticking which would prevent the correct evacuation of the combus-
tion products.
The flue gas pipe must be suitably selected based on the parameters
shown below.
ø80
ø80/125
Before attempting any operation, disconnect the appliance from the
electrical supply.
Before assembling, lubricate the gaskets with a non-corrosive glide
lubricant.
The flue gases discharge pipe should be inclined, if the pipe is hori-
zontal, by 3° towards the boiler.
1. Ø80 check valve kit with integrated siphon
- Install the split PP system kit.
- Mount the check valve (A) on the flue gas exhaust reduction (B) previously
mounted on the concentric outlet of the air box.
DO NOT fasten the check valve to the flue exhaust reduction with
screws. The piercing of the valve would cause the lack of tightness of
the integrated siphon, with consequent leakage of condensate and/
or fumes into the environment.
The installation of the check valve requires the application of the la-
bel supplied with the kit on a visible part of the boiler casing. The
application of the label is essential for safety purposes during the
maintenance or replacement of the boiler and/or collective pipe.
maximum length
minimum length
4,5
4,5
A
B
um
0,5
m
0,5
m