Technical documentation
Technical documentation
STZS ed. 06/03
30
ZEUS SUPERIOR
ZEUS Superior TECHNICAL DATA
ZEUS 21 ZEUS 24
ZEUS 27
Nominal heating capacity
kW (Kcal/h)
26,6 (22901)
30,49 (26116)
34,3 (29508)
Minimum heating capacity
kW (Kcal/h)
10,9 (9401)
12,3 (10539)
14,7 (12647)
Maximum heat output (useful)
kW (Kcal/h)
24,4 (21000)
27,9 (24000)
31,4 (27000)
Minimum heat output (useful)
kW (Kcal/h)
9,3 (8000)
10,5 (9000)
12,5 (10750)
Useful heating efficiency at nominal output
% 91,7
91,9
91,5
Useful heating efficiency at 30% nominal output
% 88,1
87,3
89,5
Heat losses at the casing with burner on / off
%
1,50 / 0,95
1,0 / 0,85
1,0 / 0,63
Heat losses at the chimney with burner on / off
%
6,8 / 0,07
7,1 / 0,06
7,5 / 0,02
Nozzles diameter
(G20)
mm 1,30 1,30 1,30
Gas supply pressure
(G20)
mbar (mm H
2
O)
20 (204)
20 (204)
20 (204)
Nozzles diameter
(G30)
mm 0,75 0,75 0,78
Gas supply pressure
(G30)
mbar (mm H
2
O)
29 (296)
29 (296)
29 (296)
Nozzles diameter
(G31)
mm 0,75 0,75 0,78
Gas supply pressure
(G31)
mbar (mm H
2
O)
37 (377)
37 (377)
37 (377)
Max operating pressure of heating circuit
bar
3
3
3
Max operating temperature of heating circuit
ºC
90
90
90
Adjustable heating temperature
ºC
38 - 85
38 - 85
38 –85
Total volume of expansion vessel
l
8
8
10
Expansion vessel preloading
bar
0,8
0,8
0,8
Amount of water in boiler
l
3,5
4,0
4
Available head capacity 1000 l/h
kPa (m H
2
O)
29,4 (3,0)
30,4 (3,1)
34,3 (3,5)
Domestic circuit hot water production useful heat
output
kW (Kcal/h)
24,4 (21000)
27,9 (24000)
31,4 (27000)
Domestic hot water circuit water adjustable
temperature
ºC
20 - 60
20 - 60
20 – 60
Flow limiter
l/min
10
12
10
Flow limiter plus Gaudium Magnum
l/min
16
18
16
Domestic hot water circuit max. operating pressure
bar
8
8
8
Specific D.H.W. flow rate with
∆
T 30ºC
l/min 15,2
16,4 19,0
Specific D.H.W. flow rate in cont. service with
∆
T
30ºC
l/min 11,4 13,3 15,0
Storage tank capacity
l
60
60
60
Full boiler weight
kg
138
140
140
Empty boiler weight
kg
74
76
76
Power connection
V / Hz
230 / 50
230 / 50
230 / 50
Rated input
A
0,67
0,75
0,90
Installed power
W
140
155
180
Power absorbed by circulator
W
78
90
100
Power absorbed by fan
W
35
35
49
Appliance electrical system protection
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IPX4D
IPX4D
IPX4D
