Beretta 30 B.S.I. Manual De Instalacion Y Uso página 18

THERMOREGULATION CURVES
100
90
80
70
60
50
40
30
20
20 15 10
EXTERNAL TEMPERATURE (°C)
P21 = MAXIMUM HEATING SET POINT
P22 = MINIMUM HEATING SET POINT
CONNECT AT/BT
In case of using CONNECT AT/BT, accessory supplied on request,
the boiler gives the possibility to choose 2 thermoregulation curves:
- OTC 1 CH (parameter 45) for a direct system
- OTC 2 CH (parameter 47) for a mixed system.
Even in case of second circuit (2CH) the curve depends on the
external minimum project temperature (on the geographical area,
therefore) and on the delivey project temperature (on the type of
system, therefore); the installer must to put attention to calculate it
using the following formula:
rated delivery T - 20
P. 47 = 10 x
20- rated min. external T
Parameters 31 and 32 give the possibility to define the maximum
and the minimum central heating set-point of the second circuit.
To correct the curve in this configuration, please refer to the
instructions supplied with the accessory.
15
.
DHW operation
CH operation
Qn nominal capacity
Pn nominal power
IP protection level
P. min minimum pressure
Pmw DHW maximum pressure
Pms CH maximum pressure
T temperature
η η η η η
working efficiency
D specific capacity
NOx NOx value class
GRAPH 1
37,5 35 32,5 30 25 22,5
40 27,5
40
5 0 -5 -10 -15
SERIAL NUMBER PLATE
N.
230 V ~ 50 Hz
20
90
80
17,5
70
15
P. 21
60
12,5
50
10
40
7,5
30
5
20
2,5
10
P. 22
30
-20
90
80
70
60
50
40
30
20
10
20
Condensing boiler
IP
Pmw = 6 bar T= 60 °C
8 bar
Pms = 3 bar T= 90 °C
****
18
GRAPH 2
TEMPERATURE CURVE CORRECTION
+ 5 C
0 C
- 5 C
25 20 15 10 5 0
EXTERNAL TEMPERATURE (°C)
GRAPH 3
PARALLEL NIGHT REDUCTION
DAY
temperature curve Curva climatica GIORNO
NIGHT
Curva climatica NOTTE
temperature curve
15 10 5 0 -5
EXTERNAL TEMPERATURE (°C)
Gas type:
Gas type
P. min.
Qn =
Pn =
-5 -10 -15 -20
-10 -15 -20
Gas
Gas category:
category
0694/00
ç
=
D: l/min
NOx:
05/BB1
05/CA3