Technical Manual
Technical Data
VITOCELL 300-B 7
Pressure drop on heating water side Domestic hot water pressure drop
of a single coil
Lower indirect coil, 119 USG / 450 ltr capacity
Lower indirect coil, 79 USG / 300 ltr capacity
Upper indirect coil, 79 USG / 300 ltr and 119 USG / 450 ltr capacity
Domestic hot water draw rate
Storage tank contents heated to 140ºF / 60ºC, boiler not reheating
Storage capacity USG
ltr
79
300
119
450
Domestic hot water draw
Water with t = 140ºF / 60ºC (constant)
USG
ltr
34
128
62
233
Percentage tank volumne 42% 52%
5
1
6
7
4
1
5
-
0
1
Waterflow
16
20
24
32
40
80
120
160
200
1.6
2
2.4
3.2
4
8
12
240
320
400
1.2
Pressure drop
2.2 500
2.6 600
3.5 800
4.4 1 000
9 2 000
13 3 000
18 4 000
22 5 000
26 6 000
31 7 000
ltr/h
GPM
44 10000
“w.c.
mbar
C
Waterflow
8 20
0.8 2
1.2 3
1.6 4
2 5
2.4 6
3.2 8
4 10
0.4 1
40 100
32 80
24 60
20 50
16 40
12 30
Pressure drop
2.2 500
3.5 800
4.4 1 000
9 2 000
13 3 000
18 4 000
22 5 000
26 6 000
“ w.c.
mbar
ltr/h
GPM
2.6 600