Technical Manual

Vitocell 300-V in a Multiple -Tank Installation
VITOCELL 300-V 7
Technical data
The 79 and 1 19 USG / 300 a nd 4 50 ltr tank sizes may be combine d into a battery consisting of between 2 and 4 tank s.
Tank batteries consisting of more than 4 tanks can be installed by creating up to 4 batteries, each consisting of 4 tanks. The heating
contractor is responsible to ensure proper piping on both the primary and secondary circuits.
Tank storage capacity
USG
ltr
79
300
119
450
Total capacity of tank battery USG
ltr
158
600
238
900
357
1350
476
1800
Number of storage tanks 2
FF
2
FF
3
FFF
4
FFFF
Recovery rates
*1
with a temperature rise of the
domestic hot water from
5
0
t
1
4
0
°
F
/
194°F
90°C
MBH
GPM
ltr/h
560
12.4
2820
553
12.3
2786
829
18.4
4179
1105
24.5
5572
50 to 140°F /
10 to 60°C
and heating water supply
tem
p
erature of ......
176°F
80°C
MBH
GPM
ltr/h
403
8.9
2028
423
9.4
2132
635
14.1
3198
846
18.8
4264
t
e
m
p
e
r
a
t
u
r
e
o
f
......
at the supply flow rate stated
below
158°F
70°C
MBH
GPM
ltr/h
280
6.2
1410
293
6.5
1479
440
9.8
2217
587
13.0
2956
Supply flow rate GPM
m
3
/h
44
10
57
13
86
19.5
114
26
for the recovery rates stated
Standby losses
*2
MBH/24 h 13.6 18.4 27.6 36.9
Overall dimensions with insulation
Overall width
*3
inches
mm
Overall depth inches
mm
Overall height inches
mm
57½
1461
43
5
/
8
1109
70
1779
75¾
1926
50¼
1278
69½
1767
114¾
2914
50¼
1278
69½
1767
153½
3902
51
1298
69½
1767
Heat exchanger s urface area ft
2
m
2
30.1
2.8
38.8
3.6
58.1
5.4
77.5
7.2
*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”.
*2
Measured values are based on a room temperature of 68 ºF / 20 ºC and a domestic hot water temperature of 149º F / 65 ºC and can
vary by ±5 %
*3
Overall width includes 2” clearance space between the tanks.
Installation of additional aquastat(s)
Ensure that temperature tempering valve(s)
is/are installed if the domestic hot water
storage tank temperature exceeds 140°F /
60°C to protect from s calding.
Consult plumbing codes and authorities for
local requirements.
5167 410 - 02
In a multiple-tank installation, it is
recommended that an additional high
limit aquastat be installed in the
common domestic hot water supply
header to the system. This aquastat
shouldbewiredinseriestothe
operating aquastat on the tank
battery. The s etting on this additional
high limit aquastat should be
approximately 9°F / 5°C higher than
the operating high limit.
WARNING