27
Rated heating output
kW
90
120
150
200
270
350
440
560
Flue gas parameters
*2
Temperature (at 60 °C boiler
water temperature)
■
At rated heating output
°C
180
■
At partial load
°C
125
Temperature (at 80 °C boiler
water temperature)
°C
195
Flue gas mass flow rate
■
For natural gas
kg/h
1.5225 x combustion output in kW
■
For fuel oil EL
kg/h
1.5 x combustion output in kW
Required draught
Pa/
mbar
0
Flue gas connection
Ø mm
180
180
200
200
200
200
250
250
Standard seasonal effi-
ciency [to DIN]
(for operation with fuel oil)
For heating system tempera-
ture 75/60 °C
%
89 (H
s
) [gross cv]
Standby loss
q
B,70
%
0.40
0.35
0.30
0.30
0.25
0.25
0.22
0.20
Rated heating output
Boiler with Vitotrans 300
■
Gas operation
kW
98.7
131.4
164.3
219.0
295.6
383.3
478.7
608.9
■
Oil operation
kW
95.8
127.8
159.8
213.0
287.5
372.7
466.4
593.5
Pressure drop on the hot
gas side
Boiler with Vitotrans 300
Pa
125
145
185
285
280
410
385
505
mbar
1.25
1.45
1.85
2.85
2.80
4.10
3.85
5.05
Total length
Boiler with Vitotrans 300
excl. burner
mm
1990
2290
2570
2950
*2
Values for calculating the size of the flue system to EN 13384, relative to 13.2 % CO
2
for fuel oil EL and 10 % CO
2
for
natural gas.
Flue gas temperatures as actual gross values at 20 °C combustion air temperature.
The details for partial load refer to an output of 60 % of rated heating output. If the partial load differs (depending on operat-
ing mode), calculate the flue gas mass flow rate accordingly.
Specification
(cont.)
5457357