Technical data
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 ----- IPX4D IPX4D IPX4D