10
TopGas Cascade
60 - 720 kW
4215256-00 - 11/16
3.4. Technical data, TopGas
®
Cascade 120
Number of TopGas Boilers in Cascade
Two
Three
Four
Five
Six
Nominal output at 80/60°C with Natural Gas
kW
215.2
322.8
430.4
538
645.6
Nominal output at 40/30°C with Natural Gas
kW
240
360
480
600
720
Nominal output at 80/60°C with LPG
kW
215.2
322.8
430.4
538
645.6
Nominal output at 40/30°C with LPG
kW
240
360
480
600
720
Nominal load with Natural Gas
kW
223
334.5
446
557.5
669
Nominal load with Propane
kW
223
334.5
446
557.5
669
Operating pressure, minimum/maximum
bar
4 / 1
4 / 1
4 / 1
4 / 1
4 / 1
Operating temperature, maximum
°C
85
85
85
85
85
Boiler water content
litres
14
21
28
35
42
Boiler weight (dry, excluding frame and headers)
kg
232
348
464
580
696
Frame, header and fixings weight (inline)
kg
293
505
586
798
879
Frame, header and fixings weight (back to back)
kg
272
347
367
579
639
Boiler full load efficiency @ 80/60°C (nCV basis/ gCV basis)
%
97.7/88.0
97.7/88.0
97.7/88.0
97.7/88.0
97.7/88.0
Boiler part load efficiency @ 40/30°C (nCV basis/ gCV basis) %
109.0/98.2
109.0/98.2 109.0/98.2 109.0/98.2 109.0/98.2
UK Part L Seasonal efficiency
%
96.3
96.3
96.3
96.3
96.3
Standing losses at 70°C
W
230
345
460
575
690
NO
X
emissions (dry and stoichoimetric)
mg/kWh
27
27
27
27
27
Natural Gas pressure, minimum/maximum
mbar
17.4 - 50
17.4 - 50
17.4 - 50
17.4 - 50
17.4 - 50
LPG pressure, minimum/maximum
mbar
37 - 50
37 - 50
37 - 50
37 - 50
37 - 50
Gas consumption (corrected 0°C, 1013mbar)
Natural Gas E (H
U
9.97kWh/m
3
)
m
3
/h
21.4
32.1
42.8
53.5
64.2
Propane (H
U
25.9 kWh/m
3
)
m
3
/h
8.34
12.51
16.68
20.85
25.02
Operating voltage
(1)
V/Hz
230/50
230/50
230/50
230/50
230/50
Control voltage
V/Hz
24/50
24/50
24/50
24/50
24/50
Type of protection
IP
20
20
20
20
20
Condensate quantity (40/30°C Natural Gas)
l/h
20.6
30.9
41.2
51.5
61.8
Condensate pH value
4-6
4-6
4-6
4-6
4-6
Flue gas mass flow
kg/h
372
558
744
930
1116
Flue gas temperature 80/60°C
°C
74.9
74.9
74.9
74.9
74.9
Flue gas temperature 40/30°C
°C
52.7
52.7
52.7
52.7
52.7
(1) Each boiler in the cascade requires a 230Vac, 10amp power supply