65
Vitocrossal, type
CRU 800
CRU 1000
Rated heating output range
P
n
: T
F
/T
R
80/60 °C
kW
125 to 750
156 to 938
P
cond
: T
F
/T
R
50/30 °C
kW
137 to 800
171 to 1000
Gas flow rate, natural gas LL (G25)
at 15 °C,
1.013 bar
■
At rated heating output
m
3
/h
93.8
117.3
■
At partial load
m
3
/h
15.6
19.6
Flue gas parameters
*2
Flue gas temperature ( T
V
/T
R
50/30 °C)
■
At rated heating output
°C
43
45
■
At partial load
°C
34
35
Flue gas temperature ( T
V
/T
R
80/60 °C)
■
At rated heating output
°C
67
69
■
At partial load
°C
63
63
Flue gas mass flow rate, natural gas E (G20)
■
At rated heating output
kg/h
1249
1562
■
At partial load
kg/h
233
291
Flue gas mass flow rate, natural gas LL (G25)
■
At rated heating output
kg/h
1273
1592
■
At partial load
kg/h
237
297
Flue gas connection
7
mm
300
300
Draught at the flue outlet
Pa
70
70
mbar
0.7
0.7
Flue gas volume
m
3
0.45
0.50
Efficiency
■
H
s
at T
F
/T
R
80/60 °C, full load (100 %)
%
88
88
■
H
s
at T
F
/T
R
50/30 °C, full load (100 %)
%
96
95
■
H
s
at T
F
/T
R
50/30 °C, partial load (30 %)
%
98
97
Standard seasonal efficiency [to DIN]
■
H
s
at 40/30 °C
%
99
98
■
H
s
at 75/60 °C
%
96
96
Idle losses
(via ambient temperature)
■
50 K
kW
2.7
2.8
■
30 K
kW
1.0
1.1
Standby loss q
B,70
%
0.4
0.7
*2
Values for calculating the size of the flue system to EN 13384, based on 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 the lower rated heating output (30 %). If the partial load differs (subject to burner operat-
ing mode), calculate the flue gas mass flow rate accordingly.
Specification
Specification
(cont.)
5833296
