Technical Manual

Technical Data
4 VITOCELL 300-B
Technical Data
For DHW production in conjunction with solar systems Suitable for heating systems with:
and heating boilers, and heating systems without H max. working pressure on heat exchanger side up to 220 psig at
low limit for dual coil operation 392°F/200°C
H max. working pressure on DHW water side of up to 150 psig at
210°F/99°C
H max. testing pressure on DHW side of 300 psig
Storage capacity USG / ltr 79 / 300 119 / 450
Coil upper
*1
lower
*2
upper
*1
lower
*2
Recovery rate
*3
with a DHW temperature increase from 50 to 113 ºF/
1
0
t
o
4
5
º
C
a
n
d
a
s
u
p
p
l
y
w
a
t
e
r
t
e
m
p
e
r
a
t
u
r
e
o
f
194ºF/90ºC
MBH / kW
GPH / ltr/h
273 / 80
519 / 1965
318 / 93
604 / 2285
273 / 80
519 / 1965
328 / 96
623 / 2358
w
i
t
h
a
D
H
W
t
e
m
p
e
r
a
t
u
r
e
i
n
c
r
e
a
s
e
f
r
o
m
5
0
t
o
1
1
3
º
F
/
10 to 45 ºC and a supply water temperature of . . . . . .
176ºF/80ºC
MBH / kW
GPH / ltr/h
219 / 64
415 / 1572
246 / 72
467 / 1769
218 / 64
415 / 1572
219 / 73
474 / 1793
158ºF/70ºC
MBH / kW
GPH / ltr/h
154 / 45
292 / 1106
178 / 52
337 /1277
154 / 45
292 / 1106
191 / 56
364 / 1376
140ºF/60ºC
MBH / kW
GPH / ltr/h
96 / 28
182 / 688
102 / 30
195 / 737
96 / 28
182 / 688
126 / 37
240 / 909
122ºF/50ºC
MBH / kW
GPH / ltr/h
51 / 15
97 / 368
51 / 21
97 / 368
51 / 15
97 / 368
61 / 18
117 / 442
Recovery rate
*3
with a DHW temperature increase from 50 to 140 ºF/
1
0
t
o
6
0
º
C
a
n
d
a
s
u
p
p
l
y
w
a
t
e
r
t
e
m
p
e
r
a
t
u
r
e
o
f
194ºF/90ºC
MBH / kW
GPH / ltr/h
253 / 74
336 / 1273
278 / 82
372 / 1410
253 / 74
336 / 1273
276 / 81
368 / 1393
w
i
t
h
a
D
H
W
t
e
m
p
e
r
a
t
u
r
e
i
n
c
r
e
a
s
e
f
r
o
m
5
0
t
o
1
4
0
º
F
/
10 to 60 ºC and a supply water temperature of ......
176ºF/80ºC
MBH / kW
GPH / ltr/h
184 / 54
245 / 929
202 / 59
268 / 1014
184 / 54
245 / 929
212 / 62
282 / 1066
158ºF/70ºC
MBH / kW
GPH / ltr/h
120 / 35
159 / 602
140 / 41
186 / 705
120 / 35
159 / 602
147 / 43
195 / 739
Insulation PUR Foam Soft PET insulation
Standby losses
*4
MBH/24 h 7.2 9.2
Overall dimensions with insulation
*5
Overall length (∅)
Overall width
Overall height
Tilt height including insulation
inches
mm
inches
mm
inches
mm
inches
mm
25
633
28
704
70
1779
72
1821
36.3
923
38.4
974
68.5
1740
65.6
1690
Weight
Tank with insulation
lbs
kg
251
114
275
125
Heat exchanger coil USG
ltr
2.9
11
2.9
11
2.9
11
3.9
15
Heat exchanger area ft.
2
m
2
16.1
1.5
16.1
1.5
15.6
1.45
20.5
1.9
Connections Coils
Domestic cold/hot water
Recirculation
∅” (male thread)
∅” (male thread)
∅” (male thread)
1”
1”
1”
1¼”
1¼”
1¼”
*1
The upper coil is designated for connection to a hot water heating boiler or a heat pump.
*2
The lower coil is designated for connection to solar collector panels or heat pumps.
*3
When planning for the recovery rate as stated or calculated, allow for the corresponding circulation pump.
The stated recovery rate is only achieved when the rated output of the boiler is equal to or greater than that stated under “Recovery
rate”.
*4
Measured values are based on a room temperature of 68°F / 20 ºC and a domestic hot water temperature of 149°F / 65 ºC and can vary
by 5%.
*5
For other dimensions, see illustrations and tables on pages 5 and 6.
"
For information regarding other Viessmann System Technology componentry, please reference documentation of the respective product.
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