Riello RESIDENCE HM Series Instructions For The User page 10

If the Ø 60-100 to Ø 80-80 twin pipe kit is used instead of the twin pipe sys-
tem, there is a loss in the maximum lengths as shown in the table.
Loss of length (m)
Twin pipes with Ø 80 pipework Ø50 - Ø60 - Ø80
Thanks to the boiler characteristics, a Ø80 flue gas discharge pipe can
be connected to the Ø50 - Ø60 - Ø80 ducting ranges.
b
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
Flue gas exhaust
Reduction from ø 80 to ø 50 or from ø 80 to ø 60
90° stack base curve ø 50 or ø 60 or ø 80
For ducting pipe lengths see table
(*) Use plastic ducting (PP) suitable for condensing boilers and with a pressure
class (P1 up to 200 Pa - H1 up to 5000 Pa) suitable for the application, referring
to the boiler outlet DP value given in "Regulation tables".
The boilers are factory set to:
CH rpm
6.300
7.400
Should greater lengths be required, compensate the pressure drop with
an increase in the r.p.m.of the fan, as shown in the adjustments table, to
provide the rated heat input.
b
The minimum calibration is not modified.
Adjustment tables INSIDE CHIMNEY PIPES - G20
Pipes
Fan rotations rpm
Ø 50
CH DHW
6.300 6.300 7
6.400 6.400 9*
6.500 6.500 11*
6.600 6.600 14*
6.700 6.700 16*
6.800 6.800 18*
6.900 6.900 21*
7.000 7.000 23*
7.100 7.100 25*
7.200 7.200 28*
7.400 8.600 2
7.500 8.700 4*
7.600 8.800 6*
7.700 8.900 9*
7.800 9.000 11*
(*) Maximum length that can be installed ONLY with class H1 discharge pipes.
Ø 50 Ø 60 Ø 80
5,5 for flue gas pipe
0,5 1,2
7,5 for air pipe
1 90° bend ø 80
4.5m pipe ø 80
1 90° bend ø 80
4.5m pipe ø 80
max length pipes (m)
DHW rpm
Ø50 Ø60
7 23
6.300
6 20
2 12
8.600
1 11
twin flue pipe
Pipes Pipes ∆P at boiler
Ø 60 Ø 80
Maximum length (m)
23 116
29* 144*
34* 172*
40* 201*
46* 229*
51* 257*
57* 285*
63* 314*
68* 342*
74* 370*
12 62
18* 92*
24* 119*
29* 145*
34* 172*
Fan rotations rpm
CH
6.300
6.400
6.500
6.600
6.700
6.800
6.900
7.000
7.100
7.200
7.400
7.500
7.600
7.700
7.800
(*) Maximum length that can be installed ONLY with class H1 discharge pipes.
The Ø50 or Ø60 or Ø80 configurations contain Lab test data.
In the event of installations that differ from the indications in the "standard
configurations" and "adjustments" tables, refer to the equivalent linear
lengths below.
b
Ø80
In any case, the maximum lengths declared in the booklet are
116
guaranteed, and it is essential not to exceed them.
COMPONENT
98
bend 45°
62
bend 90°
0.5m extension
57 1.0m extension
2.0m extension
outlet (Pa)
180
4,5m Ø 80 mm
210*
257*
285*
330*
355*
385*
425*
465*
497*
195
242*
4.9 Installation on collective flues in positive
289*
pressure
337*
The collective flue is a system suitable for collecting and expelling the
384*
combustion products of several appliances installed on several floors of a
building. Positive pressure flues may only be used for type C condensing
appliances. Consequently the B53P/B23P configuration is prohibited. The
installation of boilers on pressurised collective flues is only permitted for
methane gas. The boiler is sized to work correctly up to a maximum internal
smoke pipe pressure of 25 Pa. Check the number of fan rotations complies
with the indications in the "technical data" table.
Make sure the air suction and flue gas discharge pipes are airtight.
Installation in pressurized collective flues is only possible by using the clapet
accessory kit with integrated siphon, to be installed immediately on the exit
of the flue gas discharge pipe (kit Ø80) or the flue gas discharge/suction
air pipe (kit Ø80/125).
NOTE: The use of the Ø80 clapet kit requires the use of the Ø80 twin system
connection kit (fig. A - 2, page 9).
10
compact twin flue pipe
Pipes Pipes
Ø 50 Ø 60
DHW Maximum length (m)
6.300 6 20
6.400 8* 25*
6.500 10* 30*
6.600 13* 35*
6.700 15* 40*
6.800 17* 46*
6.900 19* 51*
7.000 21* 56*
7.100 23* 61*
7.200 25* 66*
8.600 1 11
8.700 3* 17*
8.800 6* 22*
8.900 8* 28*
9.000 10* 33*
Linear equivalent in metres Ø80 (m)
Ø 50
12,3
19,6
6,1
13,5
29,5
bend 90° ø 80 mm
4,5m Ø 80 mm
reduction
Ø 80-60 mm or
Ø 80-50 mm
Pipes ∆P at boiler
Ø 80 outlet (Pa)
98 170
124* 203*
150* 235*
176* 268*
202* 300*
228* 333*
253* 365*
279* 398*
305* 430*
331* 463*
57 180
84* 227*
111* 274*
138* 322*
165* 369*
Ø 60
5
8
2,5
5,5
12
stack for ducting
Ø 50 mm - Ø 60 mm or Ø 80mm
bend 90°
Ø 50 mm
Ø 60 mm
or Ø 80 mm