Viessmann Vitodens 200-W, B2HA Technical Manual

Technical Data Manual

Model Nos. and pricing: see Price List

Gas-fired wall-mounted condensing boiler
104 to 530 MBH (30 to 155 kW)
Multi-boiler installation 104 to 4240 MBH
For Natural Gas and Liquid Propane Gas

VITODENSr 200-W

Product may not be exactly as shown

Vitodens 200-W

Series B2HA Series, Models 100, 112 and 150

Gas-Fired Wall-Mounted Condensing Boiler
with modulating MatriX cylinder burner
for room air independent operation
(using a direct vent system or room air
dependent operation).

5683 718 - 04 04/2015

H

Product Information

Vitodens 200-W

Equipped with the industry’s first intelligent combustion
management system and powerful control technology,
the new generation Vitodens 200-W gas-fired wall-mount
condensing boiler delivers unparalleled performance,
reliability and comfort.

The benefits at a glance:

Vitodens 200-W B2HA 100 to 150 Technical Data

■ Best value in its class with new industry-leading
technology and the most standard features.

■ Highest Efficiency - CSA thermal efficiency rating to
ANSI Z.21.13/CSA 4.9 of 94.5%. Energy Star and the
CSA Energy Performance are not applicable for these
models.

■ Lasting performance with industry-leading Viessmann
made SA240 316 Ti stainless steel Inox-Radial heat
exchanger constructed to CSA B51 and ASME Section IV.

■ Low Emission Combustion with Viessmann made
stainless steel MatriX cylinder burner. Factory calibrated.

■ Fast Installation and Reduced Maintenance with Lambda
Pro, industry-first intelligent combustion management
system: Adjusts automatically to gas type and quality.
No fuel conversion kit required.

■ Powerful and User-friendly
Viessmann Vitotronic on-board multi-function outdoor
reset boiler and system control for multi-temperature
space and DHW heating.

■ Expanded Application Range with increased capacity up
to 530 MBH (155 kW). Multi-boiler installation up to
4240 MBH (1240 kW) with up to 8 boilers (models B2HA
100, 112 and 150).

■ Greater Venting Flexibility with increased vent length [up
to 180 ft. (55 m)] and multiple venting options.

- Horizontal or vertical sealed combustion coaxial
venting (field supplied).

- Horizontal, vertical or hybrid sealed combustion
double-pipe venting (field supplied).

- Horizontal or vertical single-wall venting (field
supplied).

■ Compact, Esthetic Product Design and zero clearance
to combustibles.

■ Extremely Quiet Operation; quieter than most
refrigerators.

■ True High-Altitude Operation up to 10,000 ft. (3,000 m)
with simple electronic adjustment.

■ Efficiency up to 98% through intensive condensation.

■ The gas train on the burner meets the requirement

of ASME/CSD-1.

2

2

5683 718 - 04

Vitodens 200-W B2HA 100 to 150 Technical Data

Cross-Section

Product Information

Vitodens 200-W B2HA 100 112, 150

A Inox-Radial heat exchanger made from stainless steel
– for high operational reliability and a long service life.
Large heating output in the smallest of spaces

B Modulating MatriX cylinder burner for extremely
clean combustion and quiet operation

C Variable speed combustion fan for quiet and
economical operation

D Gas and water connections

E Digital boiler control unit

Delivered condition

Wall mounted gas condensing boiler with Inox-Radial heat
exchanger, modulating MatriX cylinder burner for natural
gas and LPG, plus wall mounting bracket. Vitotronic 200
for weather-compensated operation. Preset for operation
with natural gas. Fully plumbed and wired. White epoxy­coated casing.

Products may not be exactly as shown

The flue gas temperature is only approximately 9-27º F
(5-15º C) above boiler return temperature (see chart
below).

5683 718 - 04

3

3

Technical Data

Vitodens 200-W B2HA 100 to 150 Technical Data

Technical Data

Boiler Model No. B2HA 100*A 112 150*A

Natural Gas / Liquid Propane Gas
CSA input

CSA output *3

DOE/AHRI Gross output

Net AHRI Rating *B

Heat exchanger surface area ft.

Min. gas supply pressure

Natural gas
Liquid propane gas

Max. gas supply pressure *1

Natural gas
Liquid propane gas

CSA thermal/combustion efficiency
ANSI Z21,13/CSA 4.9 % 94.5 93.9 93.5

Weight lbs

Boiler water content USG

Boiler max. flow rate *2 GPM

Max. operating pressure

at 210º F (99º C)

Boiler water temperature

- Adjustable high limit (AHL) range
space heating (steady state)

DHW production

- Fixed high limit (FHL)

Boiler connections

Boiler heating supply and return
Pressure relief valve
Drain valve

Boiler supply/return for
indirect-fired DHW storage tank
(field supplied)
Gas valve connection

MBH
kW
MBH
kW

MBH
kW
MBH
kW

2

2

m

“w.c.
“w.c.

“w.c.
“w.c.

kg

L

L/h

psig
bar

ºF
ºC
ºF
ºC
ºF (ºC)

NPTM”
NPTF”
(male
thread)

NPT”

NPTF”

104-352

30-103

98-333

29-98

329

96

286

84

28.88

2.68

10

14
14

194

88

3.4

12.8

25

5700

60

68 to 176

20 to 80

176

80

210 (99)

1b

¾
¾

1b

113-399

33-117

103-375

30-110

371
109
323

95

36.78

3.41

4

4

68 to 180

4

10

14
14

298
135

4

15

37.9

8600

80

5.5

20 to 82

180

82

210 (99)

2

113-530

33-155

103-495

30-145

490
144
426
125

36.78

3.41

298
135

8600

68 to 180

20 to 82

180

210 (99)

¾
¾

2

1

1

4

10

14
14

4

15

38

80

5.5

82

2

¾
¾

2

1

*A For high altitude installations 5,000 - 10,000 ft. (1500 m - 3000 m), the input for model B2HA 100 and 150 will
have an altitude de-ration of 14% for 5,000 ft. (1500 m) and 29% for 10,000 ft. (3000 m) average of 2.8% /
1,000 ft. (305 m). The input for model B2HA 112 at 10,000 ft. (3000 m) will have an input de-rate of 13%.

*B Net AHRI rating based on piping and pick-up allowance of 1.15.

*1 If the gas supply pressure exceeds the maximum gas supply pressure value, a separate gas pressure regulator

must be installed upstream of the heating system.

*2 See “Waterside Flow” starting on page 10 of this manual.

*3 Output based on 180º F (82º C), 80º F (26º C) system supply/return temperature.

4

4

5683 718 - 04

Vitodens 200-W B2HA 100 to 150 Technical Data

Technical Data

Technical Data (continued)

Boiler Model No. B2HA 100*A 112 150*A

Dimensions

Overall depth

Overall width

Overall height

Flue gas *4

Temperature (at boiler return
temperature of 86º F (30º C)

- at rated full load

- at rated partial load

Temperature (at boiler return
temperature of 140º F (60º C)

Max. condensate flow rate *5

for NG and LPG

=104/86º F (40/30º C) USG/h

T

S/TR

Condensate connection *6 hose

Boiler flue gas connection *7 Ø

Combustion air supply
connection (coaxial)

Sound Rating

- at maximum input

- at minimum input

inches
mm
inches
mm
inches
mm

ºF (ºC)
ºF (ºC)

ºF (ºC)

L/h

21

530

19

480

43b

*8 1105

135 (57)

99 (37)

162 (72)

3.5

13.1

27.1

27.1

698

235/

8

235/

600

*8 1128

124 (51)
102 (39)

158 (70)

4.35

16.5

44b

44b

*8 1128

140 (60)
102 (39)

165 (74)

5.28

20.0

nozzle
Ø in.

¾-1 ¾-1 ¾-1

in. (mm) 43/8 (110) 43/8 (110) 43/8 (110)

outer
Ø in. (mm) 6 (150) 6 (150) 6 (150)

dB
dB

69
38

57
40

698

8

600

61
40

*A For high altitude installations 5,000 - 10,000 ft. (1500 m - 3000 m), the input for model B2HA 100 and 150 will
have an altitude de-ration of 14% for 5,000 ft. (1500 m) and 29% for 10,000 ft. (3000 m) average of 2.8% /
1,000 ft. (305 m). The input for model B2HA 112 at 10,000 ft. (3000 m) will have an input de-rate of 13%.

*4 Measured flue gas temperature with a combustion air temperature of 68° F (20° C).

*5 Based on maximum input rate.

*6 Requires 1 inch (25 mm) tubing. See the Installation Instructions of the Vitodens 200-W, B2HA for details.

*7 For side wall vent installations (coaxial system):

Do not exceed max. equivalent length specified in the Installation Instructions of the Vitodens 200-W, B2HA
Venting System.
Do not attempt to common-vent Vitodens 200-W with any other appliance.
Side wall co-axial vent installation must include Viessmann protective screen!
For details refer to the Installation Instructions for the Vitodens 200-W, B2HA Venting System.

*8 Add approximately 2b inches (65 mm) for coaxial vent pipe transition adaptor.

For information regarding other Viessmann System Technology componentry, please reference the documentation
of each respective product.

5683 718 - 04

5

5

Dimensional Information

Model B2HA 100

Vitodens 200-W B2HA 100 to 150 Technical Data

Legend

A Boiler Supply
B Gas Connection, 1” NPTF
C Boiler Return
D Recommended height (single boiler system)
E Condensate drain

6

5683 718 - 04

Vitodens 200-W B2HA 100 to 150 Technical Data

Models B2HA 112, 150

Dimensional Information

Legend

A Boiler Supply
B Gas Connection, 1” NPTF
C Boiler Return
D Recommended height (single boiler system)
E Condensate drain

5683 718 - 04

7

Minimum Clearances

Recommended Minimum Service Clearances

Minimum Clearances to Combustibles

Top Front Rear Left Right Vent

pipe *1

0 0 AL, CL 0 0 0 0

Vitodens 200-W B2HA 100 to 150 Technical Data

AL= Alcove
CL= Closet

*1 Refer to the Installation Instructions of the Vitodens
200-W, B2HA Venting System for details.

Note: The Vitodens boiler has passed the zero inches vent
clearance to combustibles testing requirements
dictated by the Harmonized Standard ANSI Z21.13.
CSA 4.9.2000 and therefore is listed for zero
clearance to combustibles when vented with a
single wall special venting system (AL-29-4C
material). The zero inches vent clearance to
combustibles for the Vitodens boiler supercedes
the clearance to combustibles listing that appears
on the special venting system label.

8

5683 718 - 04

Vitodens 200-W B2HA 100 to 150 Technical Data

Waterside Flow (primary circuit)

Waterside Flow

The Vitodens 200-W, B2HA is designed for closed loop,
forced circulation hot water heating systems only. Use
standard friction loss method for pipe sizing. Observe
boiler maximum and minimum flow rate limitations. If
system flow rate exceeds boiler maximum flow rate
(as stated above), falls below the minimum flow rate
or if system flow rate is unknown, Viessmann strongly
recommends the installation of a low-loss header.
An alternative method may be used, such as primary
secondary piping using closely spaced tees.

Supply head pressure (water)

Flow rate

A low-loss header offers additional benefits not provided
by a pair of closely spaced tees. Viessmann therefore
strongly recommends and prefers the use of a low-loss
header over closely spaced tees. See pages 28 and 29
for low-loss header information. Once the low-loss header
is connected, the built-in low-loss header logic of the
Vitodens 200-W boiler ensures the required rt across the
system through the sensory communication between the
low-loss header and the boiler.

Pressure drop (primary circuit) for
Vitodens 200-W, B2HA 100
For sizing an on-site circulation system.
Max. flow rate: 25 USGPM (5700 L/h)

Supply head pressure (water)

Pressure drop (primary circuit) for
Vitodens 200-W, B2HA 112, 150
For sizing an on-site circulation system.
Max. flow rate: 38 USGPM (8600 L/h)

Flow rate

5683 718 - 04

9

System Flow Rates

Vitodens 200-W B2HA 100 to 150 Technical Data

Typical System Flow Rates

Boiler B2HA 100 maximum flow rate; 25 GPM (5700 L/h)

Model B2HA 100 1 boiler 2 boilers 3 boilers 4 boilers 5 boilers 6 boilers 7 boilers 8 boilers
Output (NG/LPG)

MBH 333 666 999 1332 1665 1998 2331 2664
rt for NG/LPG
20º F rise GPM

(L/h)
25º F rise GPM

(L/h)
30º F rise GPM

(L/h)
35º F rise GPM

(L/h)
40º F rise GPM

(L/h)

Boiler B2HA 112 maximum flow rate; 38 GPM (8600 L/h)

Model B2HA 112 1 boiler 2 boilers 3 boilers 4 boilers 5 boilers 6 boilers 7 boilers 8 boilers
Output (NG/LPG)

MBH 375 750 1125 1500 1875 2250 2625 3000
rt for NG/LPG
20º F rise GPM

(L/h)
25º F rise GPM

(L/h)
30º F rise GPM

(L/h)
35º F rise GPM

(L/h)
40º F rise GPM

(L/h)

33.3

(7563)

26.6

(6051)

22.2

(5042)

19

(4322)

16.7

(3781.6)

37.5

(8500)

30

(6800)

25

(5700)

21.4

(4900)

18.8

(4300)

66.6

(15128)

53.3

(12102)80(18153)

44.4

(10085)

38.1

(8644)57(12967)76(17289)

33.3

(7564)50(11346)

75

(17000)

60

(13600)90(20400)

50

(11400)75(17000)

42.9

(9700)

37.5

(8500)

100

(22692)

66.6

(15128)89(20170)

112.5

(25600)

64.3

(14600)

56.3

(12800)75(17000)

(30255)

106.6

(24204)

(15128)

(34100)

(27300)

(22700)

(19500)

133

66.6

150

120

100

85.7

166.5

(37816)

133

(30253)

111

(25211)

95

(21609)

83

(18908)

187.5

(42600)

150

(34100)

125

(28400)

107.1

(24300)

93.8

(21300)

200

(45383)

160

(36307)

133

(30255)

114

(25933)

100

(22692)

225

(51100)

180

(40900)

150

(34100)

128.6

(29200)

112.5

(25600)

233

(52947)

187

(42377)

155.4

(35298)

133

(30255)

117

(26473)

262.5

(59600)

210

(44700)

175

(39700)

150

(34100)

131.3

(29800)

266.4

(60510)

213

(48409)

178

(40341)

152

(34578)

133

(30255)

300

(68100)

240

(54500)

200

(45400)

171.4

(38900)

150

(34100)

Boiler B2HA 150 maximum. flow rate; 38 GPM (8600 L/h)

Model B2HA 150 1 boiler 2 boilers 3 boilers 4 boilers 5 boilers 6 boilers 7 boilers 8 boilers

Output (NG/LPG)

MBH 495 990 1485 1980 2475 2970 3465 3960

rt for NG/LPG

20º F rise GPM
(L/h)

25º F rise GPM
(L/h)

30º F rise GPM
(L/h)

35º F rise GPM
(L/h)

40º F rise GPM
(L/h)

10

49.5

(11243)99(22487)

39.6

(8994)79(17990)

33

(7495)66(14991)99(22487)

28

(6424)57(12850)85(19275)

25

(5631)50(11244)74(16865)99(22487)

149

(33731)

119

(26985)

(44974)

(35979)

(29983)

(25700)

198

158

132

113

247.5

(56213)

198

(44971)

165

(37476)

141.4

(32122)

124

(28107)

297

(67461)

237.6

(53969)

198

(44974)

170

(38549)

148.5

(33731)

346.5

(78705)

277

(62964)

231

(52470)

198

(44974)

173

(39352)

396

(89949)

317

(71959)

264

(59966)

226

(51399)

198

(44974)

5683 718 - 04

Vitodens 200-W B2HA 100 to 150 Technical Data

Heating Circuit / Boiler Pumps

Pump Information

Viessmann offers a variety of Grundfos heating circuit
/ boiler pumps which meet typical Vitodens system
installation requirements (see “Heating circuit pump
(field supplied)” or “Boiler pump (field supplied)” in the
Installation Examples starting on page 31). See tables
below for recommended pumps. Refer to the graphs
on page 9 for the proper waterside boiler friction loss
calculations. The following pumps have been selected
based on boiler heat exchanger head loss and boiler
piping to a low-loss header.

Model B2HA 100 Flow rate Boiler pressure drop (ft.) Recommended pump option 1 Grundfos

20º F rt

25º F rt

30º F rt

35º F rt

40º F rt

Flow limitation GPM (L/h) 5700 (25)

Model B2HA 112 Flow rate Boiler pressure drop (ft.) Recommended pump option 1 Grundfos

20º F rt

25º F rt

30º F rt

35º F rt

40º F rt

Flow limitation GPM (L/h) 8600 (37.9)

-- -- --

-- -- --

22.2 12.0 UPS 32-160/2, 115V, Speed 1 /

19.0 8.5 UPS 26-99FC, 115V, Speed 3

16.7 6.0 UPS 26-99FC, 115V, Speed 2

37.5 15.0 UPS 32-160/2, 115V, Speed 1 /

30.0 11.3 UPS 32-160/2, 115V, Speed 1 /

25.0 8.8 UPS 32-160/2, 115V, Speed 1 /

21.4 6.5 UPS 32-160/2, 115V, Speed 1 /

19.5 4.8 UPS 26-99FC, 115V, Speed 2 /

Before using the following pumps for a DHW tank
application, find out the proper pressure drop through the
tank, the required temperature difference through the coil
and system piping head loss of the domestic hot water.

IMPORTANT

Pump selection must be based on accurate system flow
and pressure drop calculations (incl. DHW sizing).

UPS 26-99FC, 115V, Speed 3

UPS 26-150F, 115V, Speed 2

UPS 26-150F, 115V, Speed 2

UPS 26-150F, 115V, Speed 2

UPS 26-99FC, 115V, Speed 3

UPS 26-150F, 115V, Speed 1

Model B2HA 150 Flow rate Boiler pressure drop (ft.) Recommended pump option 1 Grundfos

20º F rt

25º F rt

30º F rt

35º F rt

40º F rt

Flow limitation GPM (L/h) 8600 (37.9)

5683 718 - 04

-- -- --

-- -- --

33.0 12.6 UPS 32-160/2, 115V, Speed 1 /
UPS 26-150F, 115V, Speed 3

28.3 9.4 UPS 32-160/2, 115V, Speed 1 /
UPS 26-150F, 115V, Speed 2

24.8 8.0 UPS 26-99FC, 115V, Speed 3 /

UPS 32-160/2, 115V, Speed 1 /

11

Low-Loss Header Information

Vitodens 200-W B2HA 100 to 150 Technical Data

Low-Loss Header Application

Sizing of Low-Loss Header in a Residential/Commercial Single-Boiler Application

40

(22)

16.7

40

(22)

33.3

Yes

50

Yes

66.6

Yes

83

Yes

100

Yes

117

Yes

133

Yes

Viessmann
Low-loss
Temp.
Sensor
Required*2

Optional

Viessmann
Low-loss
Temp.
Sensor
Required*2

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Boiler

Model

No. of
Boilers

Boiler

Max.
Flow

Total

Flow

Rate

Typical System Flow Rates

Rate

B2HA

100

1 25

(5700)25(5700)

rt *1

System Flow
Rate
LLH Required
LLH Model

°F

(°C)

GPM

(L/h)

20

(11)

33.3

(7563)

Yes

120/80

25

(14)

26.6

(6051)

Yes

120/80

30

(17)35(19.5)

22.2

(5042)

Optional

120/80

19

(4322)

Optional

80/60

(3781.6)

Optional

80/60

*1 For system rt < 20° F use low-loss header sizes for rt 20° F.
*2 Low-Loss temperature sensor - optional equipment for use in single-boiler applications.

Sizing of Low-Loss Header in a Commercial Multiple-Boiler Application

Boiler

Model

No. of
Boilers

Boiler

Max.
Flow

Total

Flow

Rate

Typical System Flow Rates

Rate

rt *1

°F

(°C)

B2HA

100

2 25

(5700)50(11400)

System Flow
Rate

GPM

(L/h)
LLH Required
LLH Model

B2HA

100

3 25

(5700)75(17100)

System Flow
Rate

GPM

(L/h)
LLH Required
LLH Model

B2HA

100

4 25

(5700)

100

(22800)

System Flow
Rate

GPM

(L/h)
LLH Required
LLH Model

B2HA

100

5 25

(5700)

125

(28500)

System Flow
Rate

GPM

(L/h)
LLH Required
LLH Model

B2HA

100

6 25

(5700)

150

(34200)

System Flow
Rate

GPM

(L/h)
LLH Required
LLH Model

B2HA

100

7 25

(5700)

175

(39900)

System Flow
Rate

GPM

(L/h)
LLH Required
LLH Model

B2HA

100

8 25

(5700)

200

(45600)

System Flow
Rate

GPM

(L/h)
LLH Required
LLH Model

Note: for multiple boiler applications when using the Vitodens 200-W, B2HA boilers, refer to the multiple boiler

20

(11)

66.6

(15128)

Yes

200/120

100

(22692)

Yes

250/150

133

(30255)

Yes

300/200

166.5

(37816)

Yes

300/200

200

(45383)

Yes

400/200

233

(52947)

Yes

400/200

266.4

(60510)

Yes

450/250

25

(14)

53.3

(12102)

Yes

200/120

80

(18153)

Yes

200/120

106.6

(54204)

Yes

250/150

133

(30253)

Yes

300/200

160

(36307)

Yes

300/200

187

(42377)

Yes

300/200

213

(48409)

Yes

400/200

30

(17)35(19.5)

44.4

(10085)

Yes

160/80

66.6

(15128)

Yes

200/120

89

(20170)

Yes

250/150

111

(25211)

Yes

250/150

133

(30255)

Yes

300/200

155.4

(35298)

Yes

300/200

178

(40341)

Yes

300/200

38.1

(8644)

Yes

160/80

57

(12967)

Yes

200/120

76

(17289)

Yes

200/120

95

(21609)

Yes

250/150

114

(25933)

Yes

250/150

133

(30255)

Yes

300/200

152

(34578)

Yes

300/200

(7564)

120/80

(11346)

200/120

(15128)

200/120

(18908)

250/150

(22692)

250/150

(26473)

250/150

(30255)

300/200

low-loss distribution manifold installation instructions.

*1 For system rt < 20° F use low-loss header sizes for rt 20° F.
*2 Low-Loss sensor - standard equipment of the cascade control Vitotronic 300-K MW2B:
for use in multiple boiler applications.

12

5683 718 - 04

Vitodens 200-W B2HA 100 to 150 Technical Data

Low-Loss Header Information

Low-Loss Header Application

Sizing of Low-Loss Header in a Residential/Commercial Single-Boiler Application

Boiler

Model

B2HA

*1 For system rt < 20° F use low-loss header sizes for rt 20° F.
*2 Low-Loss temperature sensor - optional equipment for use in single-boiler applications.

Sizing of Low-Loss Header in a Commercial Multiple-Boiler Application

Boiler

Model

B2HA

B2HA

B2HA

B2HA

B2HA

B2HA

B2HA

Note: for multiple boiler applications when using the Vitodens 200-W, B2HA boilers, refer to the multiple boiler
low-loss distribution manifold installation instructions.

112

112

112

112

112

112

112

112

No. of
Boilers

1 38

No. of
Boilers

2 38

3 38

4 38

5 38

6 38

7 38

8 38

Boiler

Max.
Flow

Rate

(8600)38(8600)

Boiler

Max.
Flow

Rate

(8600)76(17200)

(8600)

(8600)

(8600)

(8600)

(8600)

(8600)

Total
Flow

Rate

Total
Flow

Rate

114

(25800)

152

(34400)

190

(43000)

228

(51600)

266

(60200)

304

(68800)

Typical System Flow Rates

rt *1

System Flow
Rate
LLH Required
LLH Model

Typical System Flow Rates

rt *1

System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model

(continued)

°F

(°C)

GPM

(L/h)

160/80

°F

(°C)

GPM

(L/h)75(17034)

200/120

GPM

(L/h)

GPM

(L/h)

GPM

(L/h)

GPM

(L/h)

GPM

(L/h)

GPM

(L/h)

(25552)

250/150

(34069)

300/200

(42586)

300/200

(51103)

400/200

(59620)

450/250

(68137)

450/250

20

(11)

37.5

(8517)

Yes

20

(11)

Yes

113

Yes

150

Yes

188

Yes

225

Yes

263

Yes

300

Yes

25

(14)

30

(6814)

Optional

120/80

25

(14)

60

(13627)

Yes

200/120

90

(20441)

Yes

250/150

120

(27255)

Yes

300/200

150

(34069)

Yes

300/200

180

(40882)

Yes

400/200

210

(47696)

Yes

400/200

240

(54510)

Yes

400/200

30

(17)35(19.5)

25

(5678)

Optional

120/80

30

(17)35(19.5)

50

(11356)

Yes

200/120

75

(17034)

Yes

250/150

100

(22712)

Yes

250/150

125

(28391)

Yes

300/200

150

(34069)

Yes

300/200

175

(39747)

Yes

300/200

200

(45425)

Yes

400/200

21.4

(4867)

Optional

120/80

43

(9734)

Yes

200/120

64

(14601)

Yes

250/150

86

(19468)

Yes

250/150

107

(24335)

Yes

250/150

129

(29202)

Yes

300/200

150

(34069)

Yes

300/200

171

(38936)

Yes

300/200

40

(22)

19.5

(4429)

Optional

80/60

40

(22)

38

(8517)

Yes

160/80

56

(12776)

Yes

200/120

75

(17034)

Yes

200/120

94

(21293)

Yes

250/150

113

(25552)

Yes

300/200

131

(29810)

Yes

300/200

150

(34069)

Yes

300/200

Viessmann
Low-loss
Temp.
Sensor
Required*2

Optional

Viessmann
Low-loss
Temp.
Sensor
Required*2

Yes

Yes

Yes

Yes

Yes

Yes

Yes

*1 For system rt < 20° F use low-loss header sizes for rt 20° F.
*2 Low-Loss sensor - standard equipment of the cascade control Vitotronic 300-K MW2B:
for use in multiple boiler applications.

5683 718 - 04

13

Low-Loss Header Information

Vitodens 200-W B2HA 100 to 150 Technical Data

Low-Loss Header Application (continued)

Sizing of Low-Loss Header in a Residential/Commercial Single-Boiler Application

40

(22)

25

40

(22)

50

Yes

74

Yes

99

Yes

124

Yes

148.5

Yes

173

Yes

198

Yes

Viessmann
Low-loss
Temp.
Sensor
Required*2

Optional

Viessmann
Low-loss
Temp.
Sensor
Required*2

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Boiler

Model

No. of
Boilers

Boiler

Max.
Flow

Total
Flow

Rate

Typical System Flow Rates

Rate

B2HA

150

1 38

(8600)38(8600)

rt *1

System Flow
Rate
LLH Required
LLH Model

°F

(°C)

GPM

(L/h)

20

(11)

49.5

(11243)

Yes

200/120

25

(14)

39.6

(8994)

Optional

160/80

30

(17)35(19.5)

33

(7495)

Optional

120/80

28

(6424)

Optional

120/80

(5631)

Optional

120/80

*1 For system rt < 20° F use low-loss header sizes for rt 20° F.
*2 Low-Loss temperature sensor - optional equipment for use in single-boiler applications.

Sizing of Low-Loss Header in a Commercial Multiple-Boiler Application

Boiler

Model

No. of
Boilers

Boiler

Max.
Flow

Total
Flow

Rate

Typical System Flow Rates

Rate

B2HA

150

B2HA

150

B2HA

150

B2HA

150

B2HA

150

B2HA

150

B2HA

150

2 38

(8600)76(17200)

3 38

(8600)

4 38

(8600)

5 38

(8600)

6 38

(8600)

7 38

(8600)

8 38

(8600)

114

(25800)

152

(34400)

190

(43000)

228

(51600)

266

(60200)

304

(68800)

rt *1

System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model

°F

(°C)

GPM

(L/h)99(22487)

GPM

(L/h)

GPM

(L/h)

GPM

(L/h)

GPM

(L/h)

GPM

(L/h)

GPM

(L/h)

20

(11)

Yes

250/150

149

(33731)

Yes

300/200

198

(44974)

Yes

400/200

247.5

(56213)

Yes

400/200

297

(67461)

Yes

450/250

346.5

(78705)

Yes

450/250

396

(89949)

Yes

500/300

25

(14)

79

(17990)

Yes

200/120

119

(26985)

Yes

300/200

158

(35979)

Yes

300/200

198

(44971)

Yes

400/200

237.6

(53969)

Yes

400/200

277

(62964)

Yes

450/250

317

(71959)

Yes

450/250

30

(17)35(19.5)

66

(14991)

Yes

200/120

99

(22487)

Yes

250/150

132

(29983)

Yes

300/200

165

(37476)

Yes

300/200

198

(44974)

Yes

400/200

231

(52470)

Yes

400/200

264

(59966)

Yes

450/250

57

(12850)

Yes

200/120

85

(19275)

Yes

250/150

113

(25700)

Yes

250/150

141.4

(32122)

Yes

300/200

170

(38549)

Yes

300/200

198

(44974)

Yes

400/200

226

(51399)

Yes

400/200

(11244)

200/120

(16865)

200/120

(22487)

250/150

(28107)

300/200

(33731)

300/200

(39352)

300/200

(44974)

400/200

Note: for multiple boiler applications when using the Vitodens 200-W, B2HA boilers, refer to the multiple boiler
low-loss distribution manifold installation instructions.

*1 For system rt < 20° F use low-loss header sizes for rt 20° F.
*2 Low-Loss sensor - standard equipment of the cascade control Vitotronic 300-K MW2B:
for use in multiple boiler applications.

14

5683 718 - 04

Vitodens 200-W B2HA 100 to 150 Technical Data

Domestic Hot Water Production

DHW Production

Vitodens 200-W boilers can be used in conjunction
with the stand-alone DHW storage tanks offered by
Viessmann. All Viessmann DHW storage tanks sold in
North America are available in “Vitosilver” finish only.

Size and select the DHW storage tank based on the
forecasted DHW consumption of the building in question.
For further technical information on DHW storage tanks,
see the Vitocell-V Technical Data Manuals.

For the connection of a stand-alone DHW tank,
installation fittings (field supplied), an external circulating
pump for DHW production (field supplied) and a DHW
temperature sensor (optional equipment, see Viessmann
Price List for order information) are required.

*1 DHW

Connections

(Field Supplied)

Legend

DR Boiler heating return for domestic hot water
production
DS Boiler heating supply for domestic hot water
production
HR Heating Return
HS Heating Supply
BD Boiler Drain
BR Boiler Return
BS Boiler Supply
GC Gas Connection
PRV Pressure Relief Valve
BF Boiler Fill
PG Pressure Gage (not shown)
*1 See page 41 for alternate DHW connection.
*2 Discard when using the multi-boiler distribution
manifold

IMPORTANT

An adequately sized pre-charged expansion tank must be
used. See Installation Examples for details.

5683 718 - 04

Connections for model B2HA 100

*1 DHW

Connections

(Field Supplied)

Connections for models B2HA 112 and 150

15

DHW Recirculation/ Boiler Mounting

Domestic Hot Water Recirculation

Vitodens 200-W B2HA 100 to 150 Technical Data

Vitocell-V stand-alone DHW storage tank

Legend

DCW Domestic Cold Water
DHW Domestic Hot Water
TPV Temperature and Pressure Relief Valve
(on tank - not shown)
R DHW Recirculation Line
RP DHW Recirculation Pump

DHW recirculation lines increase the level of comfort and
convenience of the domestic hot water supply and reduce
water consumption.
These advantages directly derive from the immediate
availability of domestic hot water at all draw points.

Poor insulation of the DHW recirculation line, however,
can result in considerable heat loss. Viessmann therefore
recommends that effective insulation be provided and
used for DHW recirculation lines of 23 ft. (7 m) in length
or longer.

16

5683 718 - 04