Beretta MYNUTE X R Instrucciones De Instalacion Y Uso página 8

MYNUTE X R
b
If a condensate relaunch pump is installed, check the technical data (provided by the
manufacturer) regarding output, to ensure it operates correctly.
"Forced open" installation (B23P-B53P) (Fig.13)
In this configuration the boiler is connected to the ø 80 mm flue gases discharge pipe by
means of an adaptor.
- Position the adaptor so that the Ø 60 pipe goes fully into the flue gases turret of the boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the adaptor.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
adaptor itself is restrained.
Coaxial pipes (ø 60-100 mm) (Fig. 14)
- Position the bend so that the Ø 60 pipe goes fully up against the flue gases turret of the
boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the bend.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
bend itself is restrained.
Twin pipes (ø 80 mm) (Fig. 15)
The combustion air suction pipe should be selected from the two inputs, remove the closing
plug fixed with the screws and fix the specific air deflector.
- Position the adaptor on the flue gases pipe so that the Ø 60 pipe goes fully up against
the flue gases turret of the boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the adaptor.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
adaptor itself is restrained.
If the Ø 60-100 to Ø 80-80 splitter kit is used instead of the twin pipe system, there is a loss
in the maximum lengths as shown in the table.
- Place the splitter so that the Ø 60 pipe goes fully up against the flue gases turret of the
boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the splitter.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
adaptor itself is restrained.
Loss of length (m)
Coaxial pipes (ø 80-125 mm) (Fig. 16)
- Place the adaptor vertical attachment so that the Ø 60 pipe goes fully up against the flue
gases turret of the boiler.
- Once positioned, make sure that the 4 notches (A) on the flange connect to the groove
(B) on the Ø 100 of the adaptor.
- Fully tighten the screws (C) that tighten the two locking terminals of the flange so the
adaptor itself is restrained.
- Then fit the Ø 80-125 adaptor kit on the vertical fitting.
Twin pipes with Ø 80 pipework (Ø50 - Ø60 - Ø80) (Fig. 17)
Thanks to the boiler characteristics, a Ø80 flue gas exhaust pipe can be connected to the
Ø50 - Ø60 - Ø80 piping ranges.
b
For the pipe, you are advised to make a project calculation in order to respect the
relevant regulations in force.
The table shows the standard configurations allowed.
Table of standard pipe configuration (*)
1 Bend 90° Ø 80
Air suction
4.5m pipe Ø80
1 Bend 90° Ø 80
4.5m pipe Ø80
Flue gas discharge Reduction from Ø80 to Ø50 from Ø80 to Ø60
Flue base bend 90°, Ø50 or Ø60 or Ø80
For ducting pipe lengths see table
(*) Use flue gas system accessories made of plastic (PP) for condensing boilers: Ø50 and
Ø80 class H1 and Ø60 class P1.
The boilers are factory set to:
- 20 R: 6,200 rpm in heating mode and in domestic hot water mode and the maximum
attainable length is 5m for the Ø50 pipe, 18m for the Ø60 pipe and 98m for the Ø80 pipe.
- 30 R: 6,900 rpm in heating mode and 7,800 in domestic hot water mode, and the maxi-
mum length that can be reached is 2m for the Ø50 pipe, 11m for the Ø60 pipe and 57m
for the Ø80 pipe.
- 40 R: 6,900 rpm in heating mode and 9,100 in domestic hot water mode, and the maxi-
mum length that can be reached is 7m for Ø60 pipe and 42m for Ø80 pipe (not applicable
for Ø50 pipe).
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 should not be modified.
8
Ø50 Ø60 Ø80
5.5 for flue gases pipe
0.5 1.2
7.5 for air pipe
Table of adjustments
Fan rotations
[rpm]
Heating DHW
6,200 6,200
6,300 6,300
6,400 6,400
6,500 6,500
6,600 6,600
20 R
6,700 6,700
6,800 6,800
6,900 6,900
7,000 7,000
7,100 7,100
6,900 7,800
7,000 7,900
7,100 8,000
7,200 8,100
7,300 8,200
30 R
7,400 8,300
7,500 8,400
7,600 8,500
7,700 8,600
7,800 8,700
6,900 9,100
7,000 9,200
7,100 9,300
7,200 9,400
7,300 9,500
40 R
7,400 9,600
7,500 9,700
7,600 9,800
7,700 9,900
7,800 10,000
(*) Maximum length that can be installed ONLY with class H1 discharge pipes.
N/A Not applicable
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
In any case, the maximum lengths declared in the booklet are guaranteed, and it is
essential not to exceed them.
COMPONENT
Bend 45°
Bend 90°
Extension 0.5m
Extension 1.0m
Extension 2.0m
3.15 Installation on collective flues in positive pressure
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. The boiler is sized to operate
correctly up to a maximum internal pressure of the flue no higher than the value of 25 Pa.
Check that the fan speed corresponds to what is shown in the table "technical data".
Make sure that the air intake and exhaust pipes of the combustion products are watertight.
WARNINGS:
b
The appliances connected to a collective pipe must all be of the same type and have
equivalent combustion characteristics.
b
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.
Pipework ducts
Maximum length [m]
Ø 50 Ø 60 Ø 80
5 18 98
7 (*) 23 (*) 125 (*)
9 (*) 28 (*) 153 (*)
11 (*) 33 (*) 181 (*)
13 (*) 38 (*) 208 (*)
15 (*) 43 (*) 236 (*)
17 (*) 48 (*) 263 (*)
19 (*) 53 (*) 291 (*)
22 (*) 58 (*) 319 (*)
24 (*) 63 (*) 346 (*)
2 11 57
3 (*) 15 (*) 75 (*)
4 (*) 19 (*) 93 (*)
6 (*) 22 (*) 112 (*)
7 (*) 26 (*) 130 (*)
9 (*) 30 (*) 148 (*)
10 (*) 33 (*) 166 (*)
12 (*) 37 (*) 184 (*)
13 (*) 40 (*) 202 (*)
15 (*) 44 (*) 220 (*)
N/A 7 42
N/A (*) 10 (*) 60 (*)
1 (*) 13 (*) 78 (*)
3 (*) 16 (*) 96 (*)
4 (*) 19 (*) 114 (*)
5 (*) 23 (*) 138 (*)
7 (*) 26 (*) 156 (*)
8 (*) 29 (*) 174 (*)
9 (*) 32 (*) 192 (*)
10 (*) 35 (*) 210 (*)
Linear equivalent in metres Ø80 (m)
Ø 50 Ø 60
12.3 5
19.6 8
6.1 2.5
13.5 5.5
29.5 12
ΔP at boiler
outlet
Pa
174
213
253
292
332
371
410
450
489
528
190
229
269
308
348
387
426
466
505
544
196
235
275
314
354
393
432
472
511
550