termovana Stella, Installation, Maintenance And User Manual, Page: 31 / 31

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Technical Details
Description M/U
Stella 24 C Stella 24 CI
Stella 28
C
Stella 28
CI
Thermal Capacity kW
24.3/11.3 24.3/11.3
Thermal power kW
22.6/9.9 22.6/9.9
Nominal heat output
% 93.0 93.0
Heat output reduced by 30%
% 90.4 90.4
Heat loss through the flue when burner
on
% 5.2 5.2
Heat loss through the flue when burner
off
% 0.4 0.4
Consumption at nominal capacity G20 m
3
/ h
2.52 2.52
Consumption at nominal capacity
G30/G31
Kg/h
1.90/1.88 1.90/1.88
Flue gas temp. at nominal capacity °C
132 132
Operation Temperature °C
+50 / -10 +50 / -10
Heating system temperature °C
38 – 80 38 – 80
Hot water temperature
°C
/ 35 – 55
Hot water flow
∆
T=25°
°C
/ 13
Hot water flow
∆
T=35°
°C
/ 9.3
Minimum hot water extraction l
/ 2.3
Max. pressure hot water circuit bar
/ 8
Expansion tank capacity l
7 7
Expansion tank pre-load pressure bar
1 1
Heating system maximum pressure bar
3 3
G20 methane gas nominal pressure mbar
20 20
Min. pressure at G20 methane gas
nozzles
mbar
2.6 2.6
Max. pressure at G20 methane gas
nozzles
mbar
11.3 11.3
G30 / G31 LPG nominal pressure mbar
28-30/37 28-30/37
Min. pressure at LPG nozzles
G30 / G31
mbar
6.0/8.2 6.0/8.2
Min. pressure at LPG nozzles
G30 / G31
mbar
27.6/34.2 27.6/34.2
Supply voltage/frequency V/Hz
230/50 230/50
Input power W
135 135
Protection Grade of electrical system IP X4d X4d
Appliance type
/
C12 C32 N
C42
C52 / C62
C12 C32 N
C42
C52 / C62
Gas category
/
II
2H 3+
II
2H 3+
Number of nozzles No.
12 12