Viessmann VITOCELL 300B Instruction manual

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-B
BB
B
Dual coil domestic hot water storage tank
79 and 119 USG / 300 and 450 ltr capacity
echnical Data Manual
Model Nos. and pricing: see Price List
This tank version is not suitable
for steam heating applications.

Vitocell 300-B
EVB Series
Vertical indirect-fired domestic hot water storage tank
of high-grade stainless steel with two coils
One heat exchanger coil facilitates heat transfer from the solar
collectors to domestic hot water, a second heat exchanger coil
allows reheating of the water content by the hot water heating
boiler.
5167 415 v3.3 09/2012

Product Information
2VITOCELL 300-B
Prod ct Information
Domestic hot water storage tank of
high-grade stainless steel highly effective
all-around thermal insulation.
Fully hygienic, efficient and economical
domestic hot water production by solar
collectors and a hot water heating boiler.
Heat from the solar collectors is transferred
to the domestic hot water via the lower
tank coil.
Benefits at a glance:
HCorrosion-resistant tank of high-grade SA
240-316 Ti stainless steel offers a long
service life.
HFully hygienic due to high q ality
homogeneo s stainless steel s rfaces.
Hhe high-alloy material is immune to
cracking or peeling. he tank stays
hygienic and requires only minimum
service.
HDoes not req ire a cons mable anode for
corrosion protection.
Hhe entire water content is heated by a
1¼”/25 mm diameter stainless steel heat
exchanger s rface which extends to the
bottom of the tank.
HLarge heat exchanger surfaces allow fast
and even heating of the entire water
content, guaranteeing a high level of
domestic hot water comfort.
HStandby losses minimized by highly
effective HCFC-free insulation.
79 USG / 300 ltr version comes equipped
with hard PUR foam.
119 USG / 450 ltr version is supplied with
removable soft PE insulation for easier
handling.
HTwo thermometers to show the DHW
temperature at the top of the tank, and at
the midpoint of the tank.
HTank design is accepted in the State of
Massachusetts as being ASME equivalent.
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Product Information
Cross-Section
Product may not be exactly as illustrated.
VITOCELL 300-B 3
Inspection port /
clean-o t opening
Two thermometers
Stainless steel domestic
hot water storage tank
Upper coil-
domestic hot water is reheated by
hot water heating boiler
PUR Foam ins lation (HCFC-free, 79 USG / 300 ltr)
Soft PET ins lation (119 USG / 450 ltr)
Lower coil-
connection for solar connectors
Inspection port /
clean-o t opening
Domestic hot water connection / drain
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echnical Data
4VITOCELL 300-B
Technical Data
For DHW production in conjunction with solar systems Suitable for heating systems with:
and heating boilers, and heating systems without Hmax. working pressure on heat exchanger side up to 220 psig at
low limit for dual coil operation 392°F/200°C
Hmax. working pressure on DHW water side of up to 150 psig at
210°F/99°C
Hmax. 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
p
p
l
y
w
a
t
e
r
t
e
m
p
e
r
a
t
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 s pply water temperat re 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
p
p
l
y
w
a
t
e
r
t
e
m
p
e
r
a
t
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 s pply water temperat re 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
Ins lation PUR Foam Soft PE insulation
Standby losses
*4
MBH/24 h 7.2 9.2
Overall dimensions with ins lation
*5
Overall length (∅)
Overall width
Overall height
ilt 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
ank 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 “ ecovery
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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echnical Data
Legend
IO Inspection and clean-out opening
D Drain
BWR Boiler water return (upper coil)
SCR Solar collector return (lower coil) or
boiler return
BWS Boiler water supply (upper coil)
SCS Solar collector supply (lower coil) or
boiler supply
DCW Domestic cold water
SW1 Sensor well opening for DHW
tank temperature sensor or boiler
controler aquastat (located at the
same height as BWS (79 USG /
300 ltr only), rotated 20º)
SW2 Sensor well for lower thermometer
at SCS level
DHW Domestic hot water
R Recirculation tapping
PV emperature and pressure relief
valve
*1
For solar heating systems Viessmann
recommends placement of the DHW tank
temperature sensor in the solar collector
return (SC ). This requires a brass elbow
with sensor well (accessory - Part No.
7175 213).
The DHW tank temperature sensor of the
boiler control is placed in SW1.
BWS
k
IO
b
a
c
d
e
f
g
Overall height
h
DHW
R
BWR
SCS
SCR
DCW/D
*1
Y
PV
79 USG / 300 ltr Tank
Overall width
Overall depth
m
n
SW1
SW2
*
1
echnical Data
VITOCELL 300-B 5
DHW tank temperat re sensor
in solar heating applications
79 USG / 300 ltr
DHW tank temperature sensor for solar
application (included with solar
control unit)
Brass elbow with sensor well
Solar collector return connection
Dimensions
Storage
capacity
USG /
ltr
79 /
300
a
b
c
d
e
f
g
h
k
m
n
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
3½
87
11¾
301
29
2
/
3
751
37½
951
43
1
/
3
1101
54
1369
64
2
/
3
1640
14
357
4
100
29½
751
54
1369
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echnical Data
SCS
BWR
R
g
a
e
d
c
b
k
h
IO
DHW
DCW/D
f
Overall height
BWS
SCR
*1
119 USG / 450 ltr Tank Legend
IO Inspection and clean-out opening
D Drain
BWR Boiler water return (upper coil)
SCR Solar collector return (lower coil) or
boiler return
BWS Boiler water supply (upper coil)
SCS Solar collector supply (lower coil) or
boiler supply
DCW Domestic cold water
SW1 Sensor well opening for DHW
tank temperature sensor or boiler
controler aquastat
SW2 Sensor well for lower thermometer
at SCS level
DHW Domestic hot water
R Recirculation tapping
PV emperature and pressure relief
valve
*1
For solar heating systems Viessmann
recommends placement of the DHW tank
temperature sensor in the solar collector
return (SC ). This requires a brass elbow
with sensor well (accessory - Part No.
7219 729).
The DHW tank temperature sensor of
the boiler control is placed in SW1.
Overall width
Overall depth
n
m
SW2
*1
SW1
C
echnical Data
6VITOCELL 300-B
DHW tank temperat re sensor
in solar heating applications
119 USG / 450 ltr
DHW tank temperature sensor for solar
application (included with solar
control unit)
Brass elbow with sensor well
Solar collector return connection
Dimensions
Storage
capacity
USG /
ltr
119 /
450
a
b
c
d
e
f
g
h
k
m
n
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
4
1
/
16
103
17
7
/
8
453
31½
802
36
912
39
7
/
8
1012
47
7
/
8
1216
63
1601
20
508
4
100
31½
802
46
1170
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echnical Data
VITOCELL 300-B 7
Press re drop on heating water side Domestic hot water press re 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 vol mne 42% 52%
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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

Standard Equipment/Product Installation
8VITOCELL 300-B
Standard Eq ipment
79 USG / 300 ltr capacity DHW Tank
DHW tank made from high-alloy stainless
steel with fitted PUR hard foam thermal
insulation.
– 2 thermometers °F / °C
– adjustable leveling bolts
he following are packed separately and
attached to the crate:
– 1 Loctite package
– 1 temperature and pressure relief valve
– 2 reduction couplings (1”x½”)
– 2 sensor wells
– 2 insulation blankets for sensor wells
– 7 brass adaptors (1”)
– 1 brass tee (1”)
– 1 brass hex bushing (1”x¾”)
– 1 brass cap (1”)
Must be ordered separately:
– 1 brass elbow with sensor well for solar
collector return, Part No. 7175 213
Prod ct Installation
Domestic hot water connection
119 USG / 450 ltr capacity DHW Tank
DHW tank made from high alloy stainless
steel and separately packed soft PE
thermal insulation.
–2 thermometers °F / °C
–adjustable leveling bolts
he following are packed separately and
attached to the crate:
–1 Loctite package
–1 temperature and pressure relief valve
–2 reduction couplings (1”x½”)
–2 sensor wells
–2 insulation blankets for sensor wells
–7 brass adaptors (1¼”)
–1 brass tee (1¼”)
–1 brass hex bushing (1¼”x¾”)
–1 brass cap (1¼”)
Must be ordered sepatarely:
–1 brass elbow with sensor well for solar
collector return, Part No. 7219 729
Domestic hot water supply
DHW recirculation line
DHW recirculation pump
Spring-loaded flow check valve
Discharge pipe
Pressure and temperature relief valve
Shut-off valve
Drain
Domestic cold water supply lines
Backflow preventer
Domestic cold water inlet
Precharged expansion tank
(required where backflow preventer is
installed; check local plumbing codes
and requirements)
hermostatic mixing valve/anti-scald
valve for solar applications (field supply)
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D e to the potentially high DHW
temperat res generated by the solar
heating system, the domestic hot
water temperat re m st be limited to a
maxim m of 140°F/60°C by installing
a mixing device, e.g. a thermostatic
mixing valve. The mixing device does
not completely eliminate the risk of
scalding at the tap. The installation of a
mixing tap is req ired.
WARNING

System Design Guidelines
VITOCELL 300-B 9
Installation Example
Solar collector
Vitocell 100-B
Filling valve
Solar-Divicon (pumping station)
Recirculation pump
Anti-scald tempering valve
C eating circuit
B Oil/Gas-fired boiler
DCW Domestic cold water
D W Domestic hot water
T&P Temperature and pressure relief valve
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System Design Guidelines
24
Ø19
Ø17
10 VITOCELL 300-B
Sensor well
he supplied stainless steel sensor wells are
to be used for control sensors to ensure
maximum operational safety. he top sensor
well is used for the DHW sensor connected
to the boiler control.
Should the supplied sensors not fit into the
sensor wells, other stainless steel sensor
wells must be used.
For solar heating systems, Viessmann
recommends placement of the DHW tank
temperature sensor in the solar collector
return. his requires a brass elbow with
sensor well included in the accessory pack
(see pg. 8).
Dimensions
capacity
USG /
ltr
79 /
300
120 /
450
a
b
inches
mm
inches
mm
8.7
220
7.9
200
13
330
12¼
310
Heating water s pply temperat re
over 230ºF / 110ºC
hese operating conditions require the
installation of an additional safety high limit
into the DHW storage tank, preventing the
temperature from rising above 203ºF /
95ºC. A domestic hot water tempering
valve must be used.
Temperat re and press re
relief valve
A temperature and pressure relief valve
( &P relief valve) is supplied with the tank.
he heating contractor must install the
valve on each tank in a method meeting
code requirements. If local codes require a
different relief valve, substitute the
manufacturer’s supplied valve. he tank is
approved for 100 psig where a CRN is
required. Maximum operating pressure is
150 psig.
he &P relief valve supplied with the tank
is tested under ANSI Z21.22 Code for Relief
Valves and Automatic Gas Shut-off Devices
for Hot Water Supply Systems.
Backflow preventers
Where backflow preventers are required, a
domestic water expansion tank installation
is recommended in the cold water inlet
piping before the cold water enters the
Vitocell. For the backflow device, observe
local plumbing codes and regulations.
Watts Model
40XL-8
100 psig
(Canada
where
CRN is
req ired)
150 psig
(US and
Canada)
ASME pressure
steam rating
998 MBH 1438 MBH
CSA temperature
steam rating
205 MBH
Relief
temperature
210ºF (99ºC)
Inlet thread
¾” male
Outlet thread
¾” female
Warranty excerpt
Our warranty for domestic hot water tanks
states that the water to be heated must be
of drinking (potable) water quality and that
any water treatment equipment in use must
function correctly.
Viessmann accepts no responsibility for
damage howsoever caused and reserves the
right to withdraw the product warranty if the
product has been improperly installed or
misapplied by the installer, contractor or final
user. In order to qualify for product warranty,
strict adherence to the installation and
service manuals must be assured. In the
event that Viessmann non-approved
components are utilized, Viessmann reserves
the right to withdraw all expressed or implied
warranties without written notice.
he water to be heated with the Vitocell
must be drinking (potable) water quality. If
the tank is used to heat other media, the
warranty will be null and void. Damage
resulting from excessive pressure or
temperature is clearly not the responsibility
of Viessmann.
he amount of chloride and sulfate
acceptable to the tank is limited. In areas
where high concentrations of chloride and
sulfate are present in drinking water, please
consult Viessmann for directions.
For full warranty details, please read the
product warranty card.
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To ens re optim m, safe operation, the
s pplied stainless steel well m st be
installed. The well diameter is large
eno gh to accommodate a wide variety
of sensing b lbs.
Always se spring clip to ens re proper
contact of capillary b lb against the
stainless steel well for proper
sensing/heat transfer!
WARNING