technical data manual · 2014-01-10 · vitocell-b 300 dual coil domestic hot water storage tank 79...

VITOCELL-B 300Dual coil domestic hot water storage tank

79 and 120 USG / 300 and 450 ltr capacity

Technical Data ManualModel Nos. and pricing: see Price List

This tank version is not suitablefor steam heating applications.

Vitocell-B 300

EVB Series

Vertical indirect-fired domestic hot water storage tankof high-grade stainless steel with two coils

One heat exchanger coil facilitates heat transfer from the solarcollectors to domestic hot water, a second heat exchanger coilallows reheating of the water content by the hot water heatingboiler.

5167 415 v3.0 03/2008

Product Information

2 VITOCELL-B 300

Product Information

Domestic hot water storage tank ofhigh-grade stainless steel highly effectiveall-around thermal insulation.Fully hygienic, efficient and economicaldomestic hot water production by solarcollectors and a hot water heating boiler.Heat from the solar collectors is transferredto the domestic hot water via the lowertank coil.

Benefits at a glance:

H Corrosion-resistant tank of high-grade SA240-316 Ti stainless steel offers a longservice life.

H Fully hygienic due to high qualityhomogeneous stainless steel surfaces.

H The high-alloy material is immune tocracking or peeling. The tank stayshygienic and requires only minimumservice.

H Does not require a consumable anode forcorrosion protection.

H The entire water content is heated by a1¼”/25 mm diameter stainless steel heatexchanger surface which extends to thebottom of the tank.

H Large heat exchanger surfaces allow fastand even heating of the entire watercontent, guaranteeing a high level ofdomestic hot water comfort.

H Standby losses minimized by highlyeffective HCFC-free insulation.79 USG / 300 ltr version comes equippedwith hard PUR foam.120 USG / 450 ltr version is supplied withremovable soft PUR foam insulation foreasier handling.

H Two thermometers to show the DHWtemperature at the top of the tank, and atthe midpoint of the tank.

H Tank design is accepted in the State ofMassachusetts as being ASME equivalent.

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Product InformationCross-Section

Product may not be exactly as illustrated.

VITOCELL-B 300 3

Inspection port /clean-out opening

Two thermometers

Stainless steel domestichot water storage tank

Upper coil-domestic hot water is reheated byhot water heating boiler

PUR Foam insulation (HCFC-free, 79 USG / 300 ltr)Soft polyurethane foam (120 USG / 450 ltr)

Lower coil-connection for solar connectors

Inspection port /clean-out opening

Domestic hot water connection / drain

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Technical Data

4 VITOCELL-B 300

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 atlow limit for dual coil operation 392°F/200°C

H max. working pressure on DHW water side of up to 150 psig at210°F/99°C

H max. testing pressure on DHW side of 300 psig

Storage capacity USG / ltr 79 / 300 120 / 450

Coil upper*1 lower*2 upper*1 lower*2

Recovery rate*3

with a DHW temperature increase from 50 to 113 ºF/194ºF/90ºC

MBH / kWGPH / ltr/h

273 / 80519 / 1965

318 / 93604 / 2285

273 / 80519 / 1965

328 / 96623 / 2358p

10 to 45 ºC and a supply water temperature of . . . . . .

176ºF/80ºCMBH / kWGPH / ltr/h

219 / 64415 / 1572

246 / 72467 / 1769

218 / 64415 / 1572

219 / 73474 / 1793


154 / 45292 / 1106

178 / 52337 /1277

154 / 45292 / 1106

191 / 56364 / 1376


96 / 28182 / 688

102 / 30195 / 737

96 / 28182 / 688

126 / 37240 / 909


51 / 1597 / 368

51 / 2197 / 368

51 / 1597 / 368

61 / 18117 / 442

Recovery rate*3

with a DHW temperature increase from 50 to 140 ºF/ 194ºF/90ºCMBH / kWGPH / ltr/h

253 / 74336 / 1273

278 / 82372 / 1410

253 / 74336 / 1273

276 / 81368 / 1393p

10 to 60 ºC and a supply water temperature of......176ºF/80ºC

MBH / kWGPH / ltr/h

184 / 54245 / 929

202 / 59268 / 1014

184 / 54245 / 929

212 / 62282 / 1066


120 / 35159 / 602

140 / 41186 / 705

120 / 35159 / 602

147 / 43195 / 739

Insulation PUR Foam Soft polyurethane foam

Standby losses*4 MBH/24h 7.2 9.2

Overall dimensions with insulation*5

Overall length (∅)

Overall width

Overall height

Tilt height including insulation

inchesmminchesmminchesmminchesmm

2563328

70470

177972

1821

36.392338.497468.5174065.61690

WeightTank with insulation

lbskg

251114

275125

Heat exchanger coil USGltr

2.911

2.911

2.911

3.915

Heat exchanger area ft.2

m216.11.5

16.11.5

15.61.45

20.51.9

Connections CoilsDomestic cold/hot waterRecirculation

∅” (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 “Recoveryrate”.

*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 varyby 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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Technical Data

LegendIO Inspection and clean-out openingD DrainBWR Boiler water return (upper coil)SCR Solar collector return (lower coil) or

boiler returnBWS Boiler water supply (upper coil)SCS Solar collector supply (lower coil) or

boiler supplyDCW Domestic cold waterSW1 Sensor well opening for DHW

tank temperature sensor or boilercontroler aquastat (located at thesame height as BWS (79 USG /300 ltr only), rotated 20º)

SW2 Sensor well for lower thermometerat SCS level

DHW Domestic hot waterRT Recirculation tappingTPV Temperature and pressure relief

valve

*1For solar heating systems Viessmannrecommends placement of the DHW tanktemperature sensor in the solar collectorreturn (SCR). This requires a brass elbowwith sensor well (accessory - Part No.7175 213).The DHW tank temperature sensor of theboiler control is placed in SW1.

BWS

k

IO

b

a

c

de

f

gOve

rallhe

ight

h

DHW

RT

BWR

SCS

SCR

DCW/D

*1

YTPV

79 USG / 300 ltr Tank

Ove

rallwidth

Overall depth

m

n

SW1

SW2

*1

Technical Data

VITOCELL-B 300 5

DHW tank temperature sensorin solar heating applications79 USG / 300 ltr

DHW tank temperature sensor for solarapplication (included with solarcontrol unit)Brass elbow with sensor wellSolar collector return connection

Dimensions

Storagecapacity

USG /ltr

79 /300

a

b

c

d

e

f

g

h

k

m

n

inchesmminchesmminchesmminchesmminchesmminchesmminchesmminchesmminchesmminchesmminchesmm

3½87

11¾301292/375137½951431/31101

541369642/31640

14357

410029½75154

1369

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Technical Data

SCSBWRRT

g

a

ed

cb

kh

IO

DHW

DCW/D

f Ove

rallhe

ight

BWS

SCR*1

120 USG / 450 ltr Tank LegendIO Inspection and clean-out openingD DrainBWR Boiler water return (upper coil)SCR Solar collector return (lower coil) or

boiler returnBWS Boiler water supply (upper coil)SCS Solar collector supply (lower coil) or

boiler supplyDCW Domestic cold waterSW1 Sensor well opening for DHW

tank temperature sensor or boilercontroler aquastat

SW2 Sensor well for lower thermometerat SCS level

DHW Domestic hot waterRT Recirculation tappingTPV Temperature and pressure relief

valve

*1For solar heating systems Viessmannrecommends placement of the DHW tanktemperature sensor in the solar collectorreturn (SCR). This requires a brass elbowwith sensor well (accessory - Part No.7219 729).The DHW tank temperature sensor ofthe boiler control is placed in SW1.

Ove

rallwidth

Overall depth

n

m

SW2*1

SW1

C

Technical Data

6 VITOCELL-B 300

DHW tank temperature sensorin solar heating applications120 USG / 450 ltr

DHW tank temperature sensor for solarapplication (included with solarcontrol unit)Brass elbow with sensor wellSolar collector return connection

Dimensions

Storagecapacity

USG /ltr

120 /450

a

b

c

d

e

f

g

h

k

m

n

inchesmminchesmminchesmminchesmminchesmminchesmminchesmminchesmminchesmminchesmminchesmm

41/16103

177/845331½80236

912397/81012477/81216

631601

20508

410031½80246

1170

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Technical Data

VITOCELL-B 300 7

Pressure drop on heating water side Domestic hot water pressure dropof a single coil

Lower indirect coil, 120 USG / 450 ltr capacityLower indirect coil, 79 USG / 300 ltr capacityUpper indirect coil, 79 USG / 300 ltr and 120 USG / 450 ltr capacity

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Waterflow

16

2024

3240

80

120

160

200

1.6

2

2.4

3.2

4

8

12

240

320400

1.2Pres

sure

drop

2.2

500

2.6

600

3.5

800

4.4

1000

92000

13

3000

18

4000

22

5000

26

6000

31

7000

ltr/h

GPM44

10000

“w.c.

mba

r

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

Pres

sure

drop

2.2

500

3.5

800

4.4

1000

92000

13

3000

18

4000

22

5000

26

6000

“w.c.

mba

r

ltr/h

GPM2.6

600

Standard Equipment/Product Installation

Y

8 VITOCELL-B 300

Standard Equipment

79 USG / 300 ltr capacity DHW TankDHW tank made from high-alloy stainlesssteel with fitted PUR hard foam thermalinsulation.– 2 thermometers °F / °C– adjustable leveling bolts

The following are packed separately andattached 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 solarcollector return, Part No. 7175 213

Product Installation

Domestic hot water connection

120 USG / 450 ltr capacity DHW TankDHW tank made from high alloy stainlesssteel and separately packed soft PURfoam thermal insulation.– 2 thermometers °F / °C– adjustable leveling bolts

The following are packed separately andattached 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 solarcollector return, Part No. 7219 729

Domestic hot water supplyDHW recirculation lineDHW recirculation pumpSpring-loaded flow check valveDischarge pipePressure and temperature relief valveShut-off valveDrainDomestic cold water supply linesBackflow preventerDomestic cold water inletPrecharged expansion tank(required where backflow preventer isinstalled; check local plumbing codesand requirements)Thermostatic mixing valve/anti-scaldvalve for solar applications

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Due to the potentially high DHWtemperatures generated by the solarheating system, the domestic hotwater temperature must be limited to amaximum of 140°F/60°C by installinga mixing device, e.g. a thermostaticmixing valve. The mixing device doesnot completely eliminate the risk ofscalding at the tap. The installation of amixing tap is required.

WARNING

System Design Guidelines

VITOCELL-B 300 9

Installation Example

Solar collectorCollector temperature sensorAir vent valve*1

Solar Divicon (pumping station)Solar collector supplySolar collector returnFill manifold *2

Solar hand pumpDomestic cold waterDHW tank temperature sensor (solar)Vitocell-B 300Air separatorDHW tank temperature sensor (boiler)

P Oil-/Gas-fired boiler

R Heating circuitS TapsT Recirculation pumpU Domestic hot waterV Solar control unitT Temperature sensor

*1 Install at least one air vent valve (fast air vent valve with shutoff valve or manual vent valve) at highest point of system.*2 Integrated in Solar Divicon DN20 and DN25 models.

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T T

T

T

Y

P

R

V

T

SU

T

System Design Guidelines

24

Ø19Ø17

10 VITOCELL-B 300

Sensor well

The supplied stainless steel sensor wells areto be used for control sensors to ensuremaximum operational safety. The top sensorwell is used for the DHW sensor connectedto the boiler control.Should the supplied sensors not fit into thesensor wells, other stainless steel sensorwells must be used.For solar heating systems, Viessmannrecommends placement of the DHW tanktemperature sensor in the solar collectorreturn. This requires a brass elbow withsensor well included in the accessory pack(see pg. 8).

Dimensionscapacity

USG /ltr

79 /300

120 /450

a

b

inchesmminchesmm

8.72207.9200

1333012¼310

Heating water supply temperatureover 230ºF / 110ºC

These operating conditions require theinstallation of an additional safety high limitinto the DHW storage tank, preventing thetemperature from rising above 203ºF /95ºC. A domestic hot water temperingvalve must be used.

Temperature and pressurerelief valve

A temperature and pressure relief valve(T&P relief valve) is supplied with the tank.The heating contractor must install thevalve on each tank in a method meetingcode requirements. If local codes require adifferent relief valve, substitute themanufacturer’s supplied valve. The tank isapproved for 100 psig where a CRN isrequired. Maximum operating pressure is150 psig.The T&P relief valve supplied with the tankis manufactured by Watts Industries (Model40XL-8), set to 100 psig for Canadianinstallations and set to 150 psig for USinstallations (where applicable). The valve isASME pressure steam rated for 998 MBHand CSA temperature steam rated for200 MBH. It is tested under ANSI Z21.22Code for Relief Valves and Automatic GasShut-off Devices for Hot Water SupplySystems. The relief temperature is set at210°F / 99°C. The valve has a malethreaded inlet and female threaded outlet,both ¾” sizes.

Backflow preventers

Where backflow preventers are required, adomestic water expansion tank installationis recommended in the cold water inletpiping before the cold water enters theVitocell. For the backflow device, observelocal plumbing codes and regulations.

Warranty excerpt

Our warranty for domestic hot water tanksstates that the water to be heated must beof drinking (potable) water quality and thatany water treatment equipment in use mustfunction correctly.Viessmann accepts no responsibility fordamage howsoever caused and reserves theright to withdraw the product warranty if theproduct has been improperly installed ormisapplied by the installer, contractor or finaluser. In order to qualify for product warranty,strict adherence to the installation andservice manuals must be assured. In theevent that Viessmann non-approvedcomponents are utilized, Viessmann reservesthe right to withdraw all expressed or impliedwarranties without written notice.

The water to be heated with the Vitocellmust be drinking (potable) water quality. Ifthe tank is used to heat other media, thewarranty will be null and void. Damageresulting from excessive pressure ortemperature is clearly not the responsibilityof Viessmann.

The amount of chloride and sulfateacceptable to the tank is limited. In areaswhere high concentrations of chloride andsulfate are present in drinking water, pleaseconsult Viessmann for directions.

For full warranty details, please read theproduct warranty card.

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To ensure optimum, safe operation, thesupplied stainless steel well must beinstalled. The well diameter is largeenough to accommodate a wide varietyof sensing bulbs.Always use spring clip to ensure propercontact of capillary bulb against thestainless steel well for propersensing/heat transfer!

WARNING

VITOCELL-B 300 11

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Viessmann Manufacturing Company Inc.750 McMurray RoadWaterloo, Ontario • N2V 2G5 • CanadaTel. (519) 885-6300 • Fax (519) 885-0887www.viessmann.ca • [email protected]

Viessmann Manufacturing Company (U.S.) Inc.45 Access RoadWarwick, Rhode Island • 02886 • USATel. (401) 732-0667 • Fax (401) 732-0590www.viessmann-us.com • [email protected]

12 VITOCELL-B 300

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technical data manual · 2014-01-10 · vitocell-b 300 dual coil domestic hot water storage tank 79...

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