Heating Capacity Adjustment (RANGE RATED)
THIS OPERATION MUST ONLY BE CARRIED OUT ONLY BY QUALIFIED PERSONNEL.
This boiler is a "RANGE RATED" type (according to EN 15502-1:2022) and can be adapt-
A
ed to the thermal needs of the system by setting the maximum heating capacity for heating
operation.
To set the maximum heating capacity reachable, parameter P41 must be changed. To change this
parameter, see *** 'Installer menu [SERVICE]' on page 281 ***.
Set the value of parameter P41 according to table 10.
Table 10- Values of parameter P41
ALHENA TECH 28 K 50
kW
28.5
25
20
15
10
5
Once the desired heating capacity has been
set, write the value on the sticker supplied
(fig. 40) and place it under the data plate on
the boiler.
For subsequent checks and adjust-
ments, refer to the set value.
THE HEATING CAPACITY ADJUSTMENT THUS MADE ENSURES THE EFFICIENCY
A
VALUES DECLARED IN cap. 4.4
304
P41
100
88
67
47
27
7
PORTATA TERMICA______________________kW
HEAT INPUT
IMP. PARAMETRO SCHEDA ELETT.____________
PCB PARAMETER SETTING
DATA / DATE______/______/______
cod. 3542A220 - Rev 01 - 07/2022
ALHENA TECH K 50
ALHENA TECH 34 K 50
kW
34.7
30
25
20
15
10
5
RANGE RATED
Valori di taratura portata termica in riscaldamento:
Heat input setting values:
Timbro e rma
Stamp and signature
Fare riferimento a questi valori per successive operazioni
di controllo e regolazioni e riportare eventuali variazioni.
Refer to these values for subsequent control and adjust-
ment operations and indicate any changes.
QUESTA ETICHETTA È PARTE INTEGRANTE DEL PRODOTTO
THIS LABEL IS AN INTEGRAL PART OF THE PRODUCT
fig. 40
P41
100
87
71
54
38
22
5
(Rif. EN 15502-1)
EN