Technical Manual

Technical Data
4 VITOCELL 300-V
Technical data
For domestic hot water heating applications which Suitable for heating systems with:
utilize modulating and low temperature hot water Hmax. working pressure on heat exchanger side up to 220 psig
heating boilers at 392°F / 200°C
Hmax. working pressure on DHW water s ide of up to 150 psig at 210°F / 99°C
Storage capacity USG
ltr
53
200
79
300
119
450
Recovery rates
*1
with a temperature rise of the
domestic hot water from
194ºF
90ºC
MBH
GPM
ltr/h
215
4.7
1084
280
6.2
1410
276
6.1
1393
50 to 140°F /
10 to 60°C
and heating water supply
t
e
m
p
e
r
a
t
u
r
e
o
f
176 ºF
80ºC
MBH
GPM
ltr/h
164
3.6
826
201
4.5
1014
212
4.7
1066
temperat ure of ......
at the supply flow rate stated
below
158 ºF
70ºC
MBH
GPM
ltr/h
99
2.1
499
140
3.1
705
147
3.3
739
Supply flow rate
for the recovery
GPM
m
3
/h
22.0
5.0
22.0
5.0
28.6
6.5
rates stated
Standby losses
*2
MBH/24 h 5.5 6.8 9.2
Overall dimensions with insulation
*3
Overall width inches
mm
Overall depth inches
mm
Overall height inches
mm
Tilt height inches
mm
22
7
/
8
581
25½
649
56
1420
58
1471
25
633
27¾
704
70
1779
71¾
1821
36
1
/
3
923
38
3
/
8
974
68½
1740
66½
1690
Weight
Tank with insulation
lbs
kg
168
76
220
100
245
111
Heating water content
(heat exchanger pipe coil)
USG
ltr
2.64
10
2.91
11
4.0
15.0
Heat exchanger s urface area ft
2
m
2
14
1.3
16
1.5
20.5
1.9
Connections
Heating water supply/return
D
o
m
e
s
t
i
c
c
o
l
d
/
h
o
t
w
a
t
e
r
’’ (male thread) 1

’’
(
m
a
l
e
t
h
r
e
a
d
)
1
1
1
1¼
1
¼
Domestic cold/hot water
T
e
m
p
.
a
n
d
p
r
e
s
s
.r
e
li
e
fv
a
lv
e
’’ (male thread) 1

’’
(
m
a
l
e
t
hr
e
a
d
)
1
1
1
1¼
1
¼
T
e
m
p
.
a
n
d
p
r
e
s
s
.
r
e
l
i
e
f
v
a
l
v
e
Recirculation

(
m
a
l
e
t
h
r
e
a
d
)
1
’’ (male thread) 1
1
1
1
¼
1¼
*1
When planning for the recovery rate as stated or calculated, allow for the corr esponding circulation pump.
The stated r ecovery rate is only achie ved w hen the rated output of the boiler is equal to or greater than that stated under “Recovery
rates”.
Please also refer to the corresponding sizing chart at the end of this manual.
*2
Measured values are based on a room temperature of 68 ºF / 20 ºC and a domestic hot water temperature of 149 ºF / 65 ºC and can
vary by ±5 %.
*3
For other dimens ions, see illustration and table on page 5 .
"
For information regarding other Viessmann System Technology compone ntr y, please reference documentation of the respective product.
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