Technical Data Manual
Model Nos. and pricing: see Price List
VVVVIIIITTTTOOOOCCCCEEEELLLLLLLL333300000000----HHHH
Indirect-fired domestic hot water storage tank
42 to 119 USG / 160 to 450 ltr
Product may not be exactly as shown
Vitocell 300-H
EHA Series
Horizontal indirect-fired domestic hot water storage tank
of high-grade stainless steel
5167 534 - 01 03/2014
Product Information
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Vitocell 300-H
Fully hygienic, efficient and economical
domestic hot water production with DHW
tanks of high-grade stainless steel – horizontal
version.
The benefits at a glance:
H Corrosion-resistant tank of high-grade SA
240-316 Ti stainless steel offers a long
service life.
H Fully hygienic due to high quality
homogeneous stainless steel surfaces.
H The high-alloy material is immune to
cracking or peeling. The tank stays
hygienic and requires only minimum
service.
H The entire water content is heated by a
1¼” / 32 mm diameter stainless steel
heat exchanger surface which extends to
the bottom of the tank.
H Certified to CSA Low Lead Content
Certification Program;
including US Safe Drinking Water Act,
NSF/ANSI 372 as well as other applicable
US State requirements.
H The positioning of the tubular heat
exchanger coil further ensures that 82 to
97% of the tank volume can be drawn at
constant water temperature.
H The stainless steel heat exchanger coil is
self-venting towards the top and
self-draining towards the bottom,
therefore not susceptible to reduced heat
transfer due to air lock or sediment
deposits.
H Standby losses minimized by 2¼” /
58 mm highly effective, foamed-in-place
HCFC-free insulation.
H Easy transport into mechanical room due
to low weight and compact construction.
2
VITOCELL 300-H
Product Information
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2¼” / 58 mm thick Inspection port/
foamed-in-place clean-out opening
HCFC-free insulation
Non-finned, stainless steel, tubular heat
exchanger coil extends to tank
bottom – the entire water
volume is heated ensuring no
cold spots where bacteria
growth could occur
Tank is constructed
of high-grade SA 240-316 Ti
stainless steel
Cross-Section
Product may not be exactly as illustrated.
VITOCELL 300-H
3
Technical Data
ofthedomesticho
t
andheatingwatersupply
50to113°F
/
Domesticcold/hotwater∅’’(malethread)¾¾1¼1
¼
Temp.andpress.reliefvalve∅’’(malethread)¾111¼
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Technical data
For domestic hot water heating applications which Suitable for heating systems with:
utilize hot water heating boilers H max. working pressure on heat exchanger side up to
Storage capacity USG
ltr
Recovery rates
*1
with a temperature rise
of the domestic hot
water from
50 to 140°F /
10 to 60°C
temperature of
.. . . . .
at the supply flow rate
stated below
Supply flow rate
for the recovery
194°F
90°C
176°F
80 ºC
158°F
70 ºC
MBH
GPM
ltr/h
MBH
GPM
ltr/h
MBH
GPM
ltr/h
GPM
m3/h
rates stated
7½
psig
MBH
GPM
ltr/h
Recovery rates
with a temperature rise
of the domestic hot
water from
10 to 45°C,
a steam pressure of
and a max. steam velocity of
.. . . . .
15
psig
MBH
GPM
ltr/h
164 ft/s, 50 m/s
Standby losses
*2
MBH/24 h 4.4 5.1 6.5 8.2
Overall dimensions
Overall depth inches
mm
Overall width inches
mm
Width without enclosure inches
mm
Overall height inches
mm
Weight
Tank with insulation
Heating water content
(heat exchanger pipe coil)
Heat exchanger surface area ft
lbs
kg
USG
ltr
2
2
m
Connections
Heating water supply/return
∅’’ (male thread) 1
220 psig at 392°F / 200°C or a steam pressure of 15 psig at 250°F / 121°C
H max. working pressure on DHW water side of up to 150 psig at 210°F / 99°C
42
160
96
2.1
482
78
1.8
396
51
1.1
258
13.2
3.0
53
200
113
2.5
568
85
1.9
430
58
1.3
292
22.0
5.0
Please see Vitocell-H 300 Steam Chart on page 16
Please see Vitocell-H 300 Steam Chart on page 16
42¼
1072
25¼
640
––
25¾
654
168
76
1.8
7
9.36
0.87
48¾
1236
25¼
640
––
25¾
654
185
84
2.1
8
9.7
0.9
1
1204
22.0
62½
1590
32¾
30¼
768
18.3
92
350
239
5.3
174
3.9
877
116
2.6
585
5.0
830
31
786
379
172
3.4
13
1.7
1¼
*3
*3
119
450
280
1410
212
1066
133
671
22.0
1654
35¾
910
32
810
886
421
191
22.6
6.2
4.7
3.0
5.0
65
*4
*4
35
4.2
16
2.1
1¼
*1
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
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
To overcome mechanical room access problems, the front panel with thermometer and side panels can be removed, the adjustable feet
unscrewed, and the Vitocell 300-H turned on its side.
*4
This is the net width of the Vitocell 300-H after removing the outer casing to ease problems of access into the mechanical room.
4
VITOCELL 300-H
O
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Vitocell 300-H, 42 and 53 USG / 160 and 200 ltr
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IO
Overall height
Overall width
Overall depth
Dimensions
Storage
capacity
a inches
USG
ltr
mm
42
16053200
34
40½
866
1030
Vitocell 300-H, 42 to 119 USG / 160 to 450 ltr
1½” / 36 mm
DHW /
TPV
AQ
BWS
BWR
DCW
3¼” / 83 mm1½” / 37 mm
4¼” / 105 mm
6½” / 167 mm
12¼” / 311 mm
Legend
AQ Aquastat Well
BWR Boiler Water Return
BWS Boiler Water Supply
DCW Domestic Cold Water
DHW Domestic Hot Water
IO Inspection and Clean-out Opening
TPV Temperature and Pressure Relief Valve
4¾” / 119 mm
13¼” / 336 mm
18” / 459 mm
Vitocell 300-H, 92 and 119 USG / 350 and 450 ltr
IO
Overall width
Dimensions
Storage
capacity
a
b
c
d
e
f
g
h
k
l
USG
ltr
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
92
350
55
1397
2¼
57
5½
139
6¾
170
5¼
133
78
14½
368
23
586
7½
193
23½
594
119
450
57½
1461
2¾
72
5½
138
8
203
5¼
137
3
3
78
16
409
25
636
9
226
26¾
677
Overall depth
RT /
TPV
DHW
AQ
BWS
BWR
DCW
1¼”
35 mm
Legend
AQ Aquastat Well
BWR Boiler Water Return
BWS Boiler Water Supply
DCW Domestic Cold Water
DHW Domestic Hot Water
IO Inspection and Clean-out Opening
TPV Temperature and Pressure Relief Valve
RT Recirculation tapping
VITOCELL 300-H
5
Vitocell 300-H, 42 to 119 USG / 160 to 450 ltr
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P
r
e
s
s
u
r
e
d
r
o
p
Domestic hot water draw rate Pressure drop on heating water side
Storage tank contents heated to 140°F / 60°C, boiler not reheating
Storage Capacity USG
ltr
Domestic hot water
draw rate
GPM
ltr/min
Domestic hot water USG
draw ltr
42
160
2.6
10
40
150
53
200
2.6
10
49
185
92
350
4.0
15
83
315
Water with
t = 140°F/60°C (constant)
Percentage Tank Volume 94% 93% 90% 97%
Heat-up time
The stated heating times are achieved when the maximum recovery
rate of the domestic hot water tank is made available at the
respective supply temperature and with a domestic hot water rise
from 50 to 140°F / 10 to 60°C.
Storage Capacity USG
ltr
Heating water supply
temperature
194°F / 90°C
176°F / 80°C
158°F / 70°C
42
160
53
200
Heat-up time (minutes)
19
26
34
18
25
32
92
350
15
20
31
(primary circuit)
119
450
4.0
15
116
440
119
450
20
26
40
400 1000
320 800
240 600
200 500
160 400
120 300
80 200
40 100
32 80
24 60
20 50
16 40
12 30
“ w.c.
mbar
8 20
Pressure drop on domestic hot water side
(secondary circuit)
“ w.c.
mbar
8 20
4 10
3.2 8
2.4 6
2 5
1.6 4
1.2 3
0.8 2
0.4 1
Pressure drop
10
3
Waterflow
2053084011501360
16
80
21
ltr/min
GPM
4 10
3.2 8
2.4 6
2 5
1.6 4
1.2 3
2.2 500
2.6 600
Waterflow
3.5 800
4.4 1 000
9 2 000
42 USG / 160 ltr storage capacity
53 USG / 200 ltr storage capacity
92 USG / 350 ltr storage capacity
119 USG / 450 ltr storage capacity
ltr/h
13 3 000
18 4 000
22 5 000
26 6 000
GPM
35 8 000
44 10 000
42 and 53 USG / 160 and 200 ltr storage capacity
92 and 119 USG / 350 and 450 ltr storage capacity
6
VITOCELL 300-H
Vitocell 300-H in a Multiple Tank Installation
waterfrom
supplytemperature
ofthedomesticho
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Technical data
Three possible combinations are shown below as examples.
Please note the maximum number of tank units which may be stacked upon one another.
Total capacity of tank battery
Number of storage tanks
Storage capacity per tank
Layout Max. number of tanks which
USG
ltr
USG
ltr
184
700
2
92
350
may be stacked on top of
each other
238
900
2
119
450
Max. number of tanks which
may be stacked on top of
357
1350
3
119
450
each other
Recovery rates
with a temperature rise
of the domestic hot
50 to 140°F /
10 to 60°C
and heating water
of
.. . . . .
at the supply flow rate
stated below
Supply flow rate
for the recovery rates stated
Recovery rates
with a temperature rise
of the domestic hot
water from
50 to 113°F /
10 to 45°C,
a steam pressure of
and a max. steam velocity of
164 ft/s, 50 m/s
Standby losses
*1
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
rates”.
*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 %.
*1
.. . . . .
*2
MBH
194°F
GPM
90°C
ltr/h
MBH
176°F
GPM
80°C
ltr/h
MBH
158°F
GPM
70°C
ltr/h
GPM
m3/h
MBH
7½
GPM
psig
ltr/h
MBH
15
GPM
psig
ltr/h
MBH/24 h 13.0 14.3 21.5
478
10.6
2408
348
7.7
1754
232
5.2
1170
44
10
566
18.0
4078
717
22.7
5160
560
12.4
2820
423
9.4
2132
266
5.9
1342
44
10
566
18.0
4078
717
22.7
5160
839
18.6
4230
635
14.1
3198
399
8.9
2013
66
15
850
27.0
6117
1075
34.1
7740
Installation of additional aquastat(s)
Ensure that temperature tempering valve(s)
WARNING
In a multiple tank installation, it is
recommended that an additional high
limit aquastat be installed in the
common domestic hot water supply
is/are installed if the domestic hot water
storage tank temperature exceeds 140°F /
60°C to protect from scalding.
Consult plumbing codes and authorities for
local requirements.
header to the system. This aquastat
should be wired in series to the
operating aquastat on the tank
battery. The setting on this additional
high limit aquastat should be
approximately 9°F / 5°C higher than
the operating high limit.
VITOCELL 300-H
7
Vitocell 300-H in a Multiple Tank Installation
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Product Delivery
Domestic hot water
draw rate
Storage tank content heated to
140°F / 60°C, boiler not reheating
Storage
capacity
Battery storage
capacity
Number of tanks
DHW
draw rate
Domestic hot USG
water draw ltr
Water with t = 140°F / 60°C
(constant)
Percentage of
battery volume
USG
ltr
USG
ltr
GPM
ltr/min
92
119
350
450
184
240
700
900
2
7.9307.9307.9
166
232
630
880
90% 97% 97%
2
119
450
360
1350
30
349
1320
Quick recovery
(over 10-minute period)
Domestic hot water rise from
50 to 113°F / 10 to 45°C
Storage
capacity
Battery storage
capacity
3
Number of tanks
Heating water supply
temperature
194°F / 90°C
176°F / 80°C
158°F / 70°C
USG
ltr
USG
ltr
USG/10 min
ltr/10 min
USG/10 min
ltr/10 min
USG/10 min
ltr/10 min
92
119
450
240
900
317
300
277
119
450
360
1350
2
433
1640
408
1545
378
1430
350
184
700
2
Quick DHW recovery
(over 10-minute period)
219
830
1200
219
830
1137
203
769
1050
Max. domestic hot water draw
rate (over 10-minute period)
Domestic hot water rise from
50 to 113°F / 10 to 45°C
Storage
capacity
Battery storage
capacity
3
Number of tanks
Heating water supply
temperature
194°F / 90°C
176°F / 80°C
158°F / 70°C
USG
ltr
USG
ltr
GPM
ltr/min
GPM
ltr/min
GPM
ltr/min
350
184
700
Max. DHW draw
rate (over 10-minute
period)
21.9
21.9
20.3
92
83
83
77
119
119
450
450
240
360
900
31.7
120
30.1
114
27.7
105
2
1350
3
43.3
164
40.7
154
37.8
143
2
Standard Equipment
Vitocell 300-H,
with 42 to 119 USG / 160 to 450 ltr
capacity
Domestic hot water tank of high-alloy
stainless steel with PUR Foam insulation
with
– adjustable leveling feet.
The following is packed separately and
attached to the crate:
– installation fittings package: with the
necessary brass adaptors, other necessary
hardware, and Loctite 55
– temperature and pressure relief valve
– sensor well with insulation
– thermometer
– Installation Instructions, Start-up/Service
Instructions and Operating Instructions.
Electrostatically powder coated sheet metal
enclosure panel in a Vitosilver finish.
8
VITOCELL 300-H
Product Installation
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Domestic hot water connections
42 and 53 USG / 160 and 200 ltr capacity
Product Installation
IMPORTANT
These are simplified conceptual drawings
only! Piping and necessary componentry
must be field verified. Proper installation
and functionality in the field is the
responsibility of the heating contractor.
92 and 120 USG / 350 and 450 ltr capacity
Domestic hot water supply
DHW recirculation line
DHW recirculation pump
Spring loaded flow check valve
Discharge pipe of temperature and
pressure relief valve
Temperature and pressure relief valve
Shut-off valve
Drain
Domestic cold water supply lines
Backflow preventer
Domestic cold water inlet
IMPORTANT
These are simplified conceptual drawings
only! Piping and necessary componentry
must be field verified. Proper installation
and functionality in the field is the
responsibility of the heating contractor.
Precharged expansion tank
(required where backflow preventer is
installed; check local plumbing codes
and requirements)
Thermostatic mixing valve/anti-scald
VITOCELL 300-H
9
Product Installation
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Sensor Well
Vitocell 300-H,
with 42 and 53 USG / 160 and 200 ltr
capacity
The sensor well is welded into the DHW
tank.
/
3”
/
1
Ø
7”/175 mm
9 mm
Ø ¼”/7 mm
Heating water supply temperatures
over 230°F / 110°C
For these operating conditions, an approved
high limit safety aquastat must be installed
to limit the domestic hot water temperature
to 203°F / 95°C in the tank.
Vitocell-H domestic hot water tank
positioned under the boiler
Please note that only the boiler/tank
combinations stated in the Price List are
possible. In the case of the 92 USG / 350 ltr
capacity Vitocell 300-H , the boiler can only
be positioned on the DHW tank so that it is
flush at the front.
Recirculation tapping
The recirculation tapping on the Vitocell-H
300 is also the opening for mounting the
temperature and pressure relief valve.
If this opening is utilized for recirculation,
extend the stainless steel nipple on the tank
with a brass tee of the same size as the
stainless steel nipple ∅ to accommodate
both connections; see installation
instructions.
Vitocell 300-H,
with 92 and 119 USG / 350 and 450 ltr
capacity
15”/380 mm
Ø ½”/15 mm
Ø ¾”/19.2 mm
Temperature and pressure
relief valve
A temperature and pressure relief valve
(T&P relief valve) is supplied with the tank.
The 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. The tank is
approved for 100 psig where a CRN is
required. Maximum operating pressure is
150 psig.
The T&P relief valve supplied with the tank
is ASME pressure steam rated for 998 MBH
and CSA temperature steam rated for
200 MBH. It is tested under ANSI Z21.22
code for Relief Valves and Automatic Gas
Shut-off Devices for Hot Water Supply
Systems.
For steam applications, a field supplied 1”
T&P valve must be utilized.
Watts Model
40XL-8
ASME pressure
steam rating
CSA temperature
steam rating
Relief
temperature
Inlet thread
Outlet thread
100 psig
(Canada
where
CRN is
required)
998 MBH 1438 MBH
205 MBH
210ºF (99ºC)
150 psig
(US and
Canada)
¾” male
¾” female
WARNING
To ensure optimum, safe operation,
the supplied stainless steel well must
be installed. The well diameter is
large enough to accommodate a wide
variety of sensing bulbs.
Always use spring clip to ensure
proper contact of capillary bulb
against the stainless steel well for
proper sensing/heat transfer!
Ø 1”/24 mm
Warranty excerpt
Our warranty for domestic hot water tanks
states that the water heated should be of
drinking water quality and that any water
treatment equipment in use must function
correctly.
If the product has been improperly installed
or misapplied by the installer, contractor or
final user, Viessmann accepts no
responsibility for damage howsoever caused
and reserves the right to withdraw the
product warranty. In order to qualify for
product warranty, strict adherence to the
installation and service manuals must be
observed. In the event that Viessmann
non-approved components are utilized,
Viessmann reserves the right to withdraw all
expressed or implied warranties without
written notice.
The 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.
The 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.
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.
10
VITOCELL 300-H
Vitocell 300-H,
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42 USG / 160 ltr capacity
Curve
Domestic hot water 40 to 140°F / 4 to 60°C
Curve
Domestic hot water 40 to 176°F / 4 to 80°C
Vitocell 300-H Sizing
Continuous Flow Capacity Chart
VITOCELL 300-H
11
Vitocell 300-H Sizing
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Continuous Flow Capacity Chart
Vitocell 300-H,
53 USG / 200 ltr capacity
Curve
Domestic hot water 40 to 140°F / 4 to 60°C
Curve
Domestic hot water 40 to 176°F / 4 to 80°C
12
VITOCELL 300-H
Vitocell 300-H,
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92 USG / 350 ltr capacity
Curve
Domestic hot water 40 to 140°F / 4 to 60°C
Curve
Domestic hot water 40 to 176°F / 4 to 80°C
Vitocell 300-H Sizing
Continuous Flow Capacity Chart
VITOCELL 300-H
13
Vitocell 300-H Sizing
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Continuous Flow Capacity Chart
Vitocell 300-H,
119 USG / 450 ltr capacity
Curve
Domestic hot water 40 to 140°F / 4 to 60°C
Curve
Domestic hot water 40 to 176°F / 4 to 80°C
14
VITOCELL 300-H
Vitocell 300-H Sizing
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Continuous Flow Capacity Chart
Example: Vitocell 300-H, 119 USG / 450 ltr capacity
Assume boiler output to tank is 238 MBH. Enter chart at left and draw horizontal line across to recovery rate of 284 GPH / 4.7 GPM for
140°F / 60°C domestic hot water under column A. Where the horizontal line intersects the 194°F / 90°C curve is the point of intersection
for the diagonal line used to size the pump. The diagonal line begins at the origin and goes through the point of intersection extending up to
the top of the chart. Read between the reference diagonal lines to get a pump specification of 15 GPM at 4.5 ft. To summarize: For a
Vitocell-H 300 with 119 USG / 450 ltr capacity and 238 MBH input, the boiler water temperature is 194°F / 90°C, difference between
boiler return and supply water temperature is 31°F / 17°C, recovery rate is 4.7 GPM of 140°F / 60°C DHW, and the pump required is 15
GPM, 4.5 ft. plus pressure drop in piping and boiler. If a multiple tank application is required, i.e. 4 tanks at 238 MBH input each, then the
pump selection would be (4 x 15 GPM) 60 GPM at 4.5 ft. plus piping pressure drop.
VITOCELL 300-H
15
Vitocell 300-H
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a
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s
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t
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a
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e
w
i
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h
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n
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i
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Steam Chart
Vitocell 300-H
Continuous flow of domestic hot water at a temperature
of 140°F / 60°C at 100°F / 56°C rise with a steam
velocity of 164 ft./sec / 50 m/sec using saturated steam.
Printed on environmentally friendly
(recycled and recyclable) paper.
lbs/h
steam
MBH kW
16
VITOCELL 300-H
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