14
RTS 3S
448
511
639
850
1160
1450
Fuel
Gas / Oil
Rated heat input
minimum
349
448
511
639
850
1160
kW
maximum
448
511
639
850
1160
1450
kW
Rated useful heat output Pn
minimum 332,2
426,5
486,5
608,3
809,2
1104,3
kW
maximum 427,8
488,0
610,2
811,8
1107,8
1384,8
kW
Useful efficiency
at min. Pn 95,2
95,2
95,2
95,2
95,2
95,2
%
at max. Pn 95,5
95,5
95,5
95,5
95,5
95,5
%
Useful efficiency at 30% (Pn Max)
98,5
98,5
98,5
98,5
98,5
98,5
%
Constant pressure drop (Pn Max)
< 1,2
< 1,0
%
Flue gas temperature (∆T°)
104
105
102
108
112
107
°C
Flue gas mass flow rate (Pn Max)
0,195
0,221
0,278
0,367
0,507
0,626
Kg/s
Furnace pressure
2,9
5,4
5,2
6,7
3,9
4,6
mbar
Furnace volume
453
453
613
812
1065
1297
dm
3
Total volume of flue gas side
682
682
899
1209
1656
2088
dm
3
Surface area for heat exchange
18,58
18,58
23,45
30,60
40,40
51,82
m
2
Volumetric heat load (Pn Max)
988
1127
1043
1046
1089
1118
kW/m
3
Specific heat load (Pn Max)
23,0
26,3
26,0
26,5
27,4
26,7
kW/m
2
Maximum operating pressure
6
bar
Maximum admissible temperature
110
°C
Maximum operating temperature
95
°C
Min. admissible water return temper.
50
°C
Pressure drop ∆T 10° C
70
90
52
42
75
75
mbar
Pressure drop ∆T 20° C
20
20
16
14
20
22
mbar
Water capacity
655
655
899
1193
1537
2211
l
b
The stack must guarantee the minimum draught specified by applicable technical standards, assuming zero pres-
sure at the connection to the flue gas exhaust.
Technical data for boilers with > 400 Kw
TECHNICAL DATA FOR BOILERS WITH > 400 KW
GENERAL