Pump - Beretta Power X 35 Installation Manual

ENGLISH
Product efficiency characteristics:
Description
Maximum rated heat input
Minimum rated heat input
Domestic hot water maximum rated thermal input (80-
60)
Domestic hot water minimum rated thermal input (80-
60)
Parameter
Seasonal heating energy efficiency class
Water heating energy efficiency class
Rated input
Seasonal energy efficiency in central heating mode
useful heat output
at rated thermal input and at high temperature rating
at 30% of rated thermal input and at low temperature
rating
Efficiency
at rated thermal input and at high temperature rating
at 30% of rated thermal input and at low temperature
rating
Auxiliary electric consumption
at full load
at partial load
in stand-by
Other parameters
Heat losses in standby
Energy consumption of the pilot light
Annual energy consumption
Level of inner sound power
44
Emissions of nitrogen oxides

2 7 Pump

The POWER X boilers come equipped with high-efficiency
self-modulating circulators, with the electrical and water
connections already complete.
The boiler is equipped with an anti-blocking system, which
activates an operating cycle after every 24 hours of disuse,
regardless of the mode selector's position.
b
The "anti-blocking" function is only enabled if the boil-
ers are receiving electrical power.
b
It is strictly forbidden to operate the circulator without
water.
b
A minimum flow rate of 800l/h must be guaranteed
within the boiler in order to prevent the differential
pressure switch from being triggered.
The curve of the head available for the system, depending
on the water flow rate, is shown below (the boiler's load
losses have already been calculated).
The indicated flow rates refer to the maximum speed.
In fact, the modulating circulator can adjust the speed in
order to obtain a constant temperature difference between
the delivery and return lines, as well as to always obtain the
maximum efficiency.
POWER X
50 DEP / 50
35 / 35 R.S.I.
DEP R.S.I.
35 38,6
5,8 15
A A
- -
31,5 34,1
92,8 92,4
30,9 34,1
11,4 12,6
88,3 88,4
98,2 97
88 77
38 24
2 2
400 341
- -
66 72,8
53 58,2
35 38,5
7
6
5
4
3
2
1
0
0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 2,2
System flow rate m
The figure showing the residual discharge head only con-
tains the graph for the pump's maximum speed.
50 / 50 R.S.I.
50 kW
15 kW
kW
kW
A -
-
44,2 kW
92,5 %
44,2 kW
16,3 kW
88,4 %
97,8 %
80 W
24 W
2 W
442 W
- W
94,2 GJ
58,2 dB
38,5 mg/kWh
/h
3
Fig. 6