Viessmann Vitocrossal Installation Instructions Manual page 32

Specification
(cont.)
Rated heating output range
P : T /T = 50/30
cond F R
P : T /T = 80/60
n F R
Foundation dimensions
Length
Width
Height
Weight
Overall unit weight
Packed unit
Boiler body
Boiler body with transport pallet kg
Burner
Water capacity
Connections
Boiler flow
Boiler return
Safety connection
Drain outlet
Trap with condensate drain
Flue gas parameters *2
Temperature (at a return tem-
perature of 30 °C)
At rated heating output
■
At partial load
■
Temperature (at a return tem-
perature of 60 °C)
Mass flow rate (for natural gas)
At rated heating output
■
At partial load
■
Flue gas connection
Draught at
Flue outlet
Max. permissible overpressure
in the header of the flue gas
cascade *3
Values for calculating the size of the flue system to EN 13384, based on 10 % CO
*2
Flue gas temperatures as actual gross values at 20 °C combustion air temperature.
The details for partial load refer to an output of 30 % of the rated heating output. If the partial load differs (subject to burner
operating mode), calculate the flue gas mass flow rate accordingly.
In cascade flue systems at overpressure, the max. permissible draught in the header (connection line) must not be excee-
*3
ded, in order to prevent mutual interference between the burners (operational safety).
32
kW 16 - 80 32 - 120 32 - 160 48 - 200 48 - 240 64 - 280
kW 15 - 74 29 - 110 29 - 146 44 - 184 44 - 220 58 - 258
mm 750
mm 800
mm 100
kg 238
kg 288
kg 183
210
kg 10
l 65
PN 6 50
DN
PN 6 50
DN
R 1
¼
R 1
¼
mm 20
°C 45
°C 35
°C 65
kg/h 120
kg/h 36
DN 200
Pa 80
mbar 0.8
Pa
mbar
850 850 1000
800 800 800
100 100 100
295 295 340
345 345 390
230 230 265
260 260 295
11 11 15
103 103 145
50 50 65
50 50 65
1 1 1
¼ ¼ ¼
1 1 1
¼ ¼ ¼
20 20 20
45 45 45
35 35 35
65 65 65
180 240 300
54 72 90
200 200 200
120 120 110
1.2 1.2 1.1
70
0.7
for natural gas
2
64 - 318
58 - 291
1000 1100 1100
800 800 800
100 100 100
340 385 385
390 435 435
265 300 300
295 330 330
15 15
145 180 180
65 65
65 65
1 1 1
¼ ¼
1 1 1
¼ ¼
20 20
45 45
35 35
65 65
360 420 477
108 126 143
200 200 200
110 140 140
1.1 1.4 1.4
15
65
65
¼
¼
20
45
35
65