Viessmann Vitodens 200-W WB2B Series, Vitodens 200-W, WB2B-19, WB2B-26, WB2B-35 Technical Data Manual

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Page 1



Technical Data Manual

Model Nos. and pricing: see Price List

VITODENS200-W

Gas-fired wall-mounted condensing boiler

31 to 370 MBH / 9 to 105 kW

Multi-boiler installation 320 to 1480 MBH/

Vitodens 200-W

WB2B Series

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

For Natural Gas and Liquid Propane Gas Heating input 31 to 370 MBH for NG and LPG 9 to 105 kW

5369 295 v1.5 09/2012

 This trademark is registered with the U.S. Patent and Trademark Office.

Page 2

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:

HBest value in its class with new

industry-leading technology and the most standard features.

HHighest Efficiency up to 98% at full

modulation and up to 96.1% A.F.U.E. CSA thermal efficiency rating to ANSI Z.21.13/CSA 4.9 of 94.5% (for model WB2B 105 only). Energy Star and the CSA Energy Performance are not applicable for model WB2B 105.

HLasting performance with industry-leading

Viessmann made SA240 316 Ti stainless steel Inox-Radial heat exchanger constructed to CSA B51 and ASME Section IV.

HLow Emission Combustion with Viessmann

made stainless steel MatriX cylinder burner. Factory calibrated.

HFast 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.

HPowerful and User-friendly

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

HCompact, Esthetic Product Design

and zero clearance to combustibles.

HExtremely Quiet Operation; quieter than

most refrigerators.

HTrue High-Altitude Operation up to

10,000 ft. / 3,000 m with simple electronic adjustment.

HEfficiency up to 98% through intensive

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

HExpanded Application Range with

increased capacity up to 370 MBH. Multi-boiler installation up to 1480 MBH with up to 4 boilers (models WB2B 45, 60, 80, 105).

HGreater Venting Flexibility with increased

vent length (up to 180 ft. / 55 m) and multiple venting options.

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

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

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

Page 3

Inox-Radial

heat exchanger

Modulating MatriX cylinder burner

Cross-Section

Vitotronic 200, HO1 on-board outdoor reset control

Boiler may not look exactly as illustrated.

Page 4

Technical Data

Table 1.

Boiler Model Model No. WB2B- 19 26 35 45 60 80 105*

Natural gas / Liquid propane gas

CSA input

CSA output/DOE

heating capacity

Net I=B=R rating

Heat exchanger surface area ft.

Min. gas supply pressure

Natural gas Liquid propane gas

Max. gas supply pressure

Natural gas Liquid propane gas

A.F.U.E. % 96.1 96.1 96.1 96.1 96.1 96.1

CSA thermal efficiency ANSI Z21.13/CSA 4.9 % 94.5

Weight lbs

Boiler water content USG

Boiler max. flow rate

Max. operating pressure

at 210ºF / 99ºC

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 NPTM “ Pressure relief valve NPTF “ Drain valve (male

MBH kW MBH kW

31-67

9-20

28-61

8-18

31-93

9-27

28-85

8-25

31-125

9-37

28-114

8-33

60-160

17-47

55-146

16-43

60-212

17-62

55-194

16-57

104-285

30-83

95-260

28-76

104-370

30-108 98-350 29-103

MBH 53 74 99 127 169 226 304

“w.c. “w.c.

GPM L/h

psig bar

ºF/ ºC ºF/ ºC ºF/ºC

10.23

0.95

14 14

102

0.87

3.3

6.2

1400

¾ ¾ ¾

10.23

0.95

14 14

102

0.87

3.30

6.2

1400

¾ ¾ ¾

10.23

0.95

14 14

102

0.87

3.3

6.2

1400

68 to 165 /

20 to 74

165 /

210/99

¾ ¾ ¾

15.76

1.46

14 14

155

1.9

7.2

15.4

3500

15.76

1.46

14 14

155

1.9

7.2

15.4

3500

28.88

2.68

28.88

2.68

14 14

225 102

3.4

12.8

35.2

8000

12.8

35.2

8000

68 to 176 /

20 to 80

176 /

210/99

1¼

¾ ¾

1¼

¾ ¾

1¼

¾ ¾

thread)

14 14

3.4

1¼

¾ ¾

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

*AFor high altitude installations (5,000 - 10,000 ft.), the input for model WB2B 105 will have an altitude de-ration of 14% for 5,000 ft.

and 28% for 10,000 ft. (average of 2.8% / 1,000 ft.).

Output based on 140ºF / 60ºC, 120ºF / 49ºC system supply/return temperature.

Net I=B=R rating based on piping and pick-up allowance of 1.15.

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.

See “Typical System Flow Rates” on page 11 in this manual.

1¼

Page 5

Technical Data

Table 1 (continued)

Boiler Model Model No. WB2B- 19 26 35 45 60 80 105*

Dimensions

Overall depth

Overall width

Overall height

Height with flue gas elbow (accessory)

Flue gas

Temperature (at boiler return temperature of 86ºF / 30ºC) – at rated full load – at rated partial load

Temperature (at boiler return temperature of 140ºF / 60ºC)

Average condensate flow rate

with natural gas and

TS/TR=104/86ºF / 40/30ºC USG/day

Condensate connection

Boiler flue gas connection

Combustion air supply connection (coaxial)

inches mm inches mm inches mm inches mm

ºF/ºC ºF/ºC

ºF/ºC

L/day

360

17¾

450

33½

850

1116

113/45

95/35

154/68

2.6-3.4 10- 12

360

17¾

450

33½

850

1116

113/45

95/35

158/70

2.9-3.4 11- 13

360

17¾

450

33½

850

1116

113/45

95/35

158/70

4-4.5

15- 17

380

480

33½

850

47¼

1200

95/35 91/33

149/65

3.7-5

14- 19

380

480

33½

850

47¼

1200

104/40

95/35

158/70

6-7.4

23- 28

530

480

33½

850

47¼

1200

95/35 91/33

149/65

6.6-7.9 25-30

hose nozzle ∅ in 1 1 1 1 1 1 1

∅

in/mm

/60 2

/60 3¼/80 3¼/80 4

/110 4

outer ∅ in/mm 4/100 4/100 4/100 5/125 5/125 6/150 6/150

530

480

33½

850

47¼

1200

104/40

95/35

158/70

9.5-10.5 35-40

/110

*AFor high altitude installations (5,000 - 10,000 ft.), the input for model WB2B 105 will have an altitude de-ration of 14% for 5,000 ft.

and 28% for 10,000 ft. (average of 2.8% / 1,000 ft.).

Measured flue gas temperature with a combustion air temperature of 68°F / 20°C.

Based on typical boiler cycles, including partial load conditions.

Requires 1” / 25 mm tubing. See the Installation Instructions of the Vitodens 200-W, WB2B for details.

For side wall vent installations (coaxial system):

Do not exceed max. equivalent length specified in the Installation Instructions of the Vitodens 200-W, WB2B Venting System. A maximum of 5 elbows may be installed in the vent system. Do not attempt to common-vent Vitodens 200-W with any other appliance. Venting material to be supplied by Viessmann only; side wall vent installation must include Viessmann protective screen! For details refer to the Installation Instructions for the Vitodens 200-W, WB2B Venting System.

Add 2½” / 65 mm for coaxial vent pipe transition adaptor.

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

Page 6

Dimensional Information

Models WB2B 19, 26, 35

2½” / 65 mm

7” / 177 mm

2¾” / 70 mm

17¾” / 450 mm

13¾” / 348 mm

2¾” / 70 mm

78” / 1975 mm

for single boiler

4” / 102 mm

87/8” / 225 mm

12” / 300 mm

installation

6¼” / 158 mm

55/8” / 143 mm

33½” / 850 mm

1¾” /

44 mm 141/8” / 360 mm

Fig. 2

Floor line

Fig. 1

Legend

BD Boiler Drain BR Boiler Return BS Boiler Supply AV Air Vent (not shown) GC Gas Connection, ¾” NPT PRV Pressure Relief Valve BF Boiler Fill PG Pressure Gage EXT Extension Adaptors, ¾” NPT DR Boiler heating return for domestic hot

water production ¾” (field supplied)

DS Boiler heating supply for domestic

hot water production ¾” (field supplied)

See page 38 for alternate DHW connection.

Fig. 3

PRV

EXTEXT

*1DHW Connections

(Field Supplied)

Page 7

Models WB2B 45, 60

Dimensional Information

9½” / 240 mm

6½” / 165 mm

19” / 480 mm

15¾” / 400 mm

9½” / 240 mm

39” / 996 mm

35½” / 902 mm

3” / 80 mm

9½” / 240 mm

51” / 1301 mm

41¾” / 1061 mm

6½” /165 mm

12” / 305 mm

5½” / 146 mm

Ø 5” / 125 mm

33½ “/ 850 mm

78” / 1975 mm for single boiler

installation

4” / 100 mm

15” / 380 mm

Fig. 5

Floor line

Fig. 4

Legend

BD Boiler Drain BR Boiler Return BS Boiler Supply AV Air Vent (not shown) GC Gas Connection, 1” NPT PRV Pressure Relief Valve BF Boiler Fill PG Pressure Gage DR Boiler heating return for domestic hot

water production 1¼” NPT (field supplied)

DS Boiler heating supply for domestic hot

water production 1¼” NPT (field supplied)

*1See page 38 for alternate DHW

connection.

Fig. 6

PRV

*1DHW Connections

(Field Supplied)

Page 8

Dimensional Information

Models WB2B 80, 105

19” / 480mm

4¼” / 108mm

9½” / 240mm

115/8“ / 295mm for WB2B 80-105 using the coaxial vent system

15¾” /

400mm

9½” / 236mm

43” /

33½” /

9½” / 240mm

3” / 80mm

6½” / 165mm

Fig. 7

Legend

BD Boiler Drain BR Boiler Return BS Boiler Supply GC Gas Connection, 1” NPT PRV Pressure Relief Valve BF Boiler Fill PG Pressure Gage DR Boiler heating return for domestic hot water production 1¼” DS Boiler heating supply for domestic hot water production 1¼” *1See page 38 for alternate DHW connection.

15¾” / 400mm

Floor line

9½” / 240mm

1090mm

850mm

78” / 1975 mm

for single boiler

installation

Fig. 8

Fig. 9

PRV

4” / 102mm

21” / 530mm

*1DHW Connections

(Field Supplied)

Page 9

Recommended Minimum Service Clearances

Side

12” / 305 mm

Top 12”/305 mm

Front

28” / 700 mm

Side

Minimum Clearances

Back

0”/mm

Fig. 10

0”/mm

Minimum Clearances to Combustibles

Top Front Rear Left Right Vent pipe

0 0 AL, CL 0 0 0 0

AL= Alcove CL= Closet

Refer to the Installation Instructions of the Vitodens 200-W, WB2B Venting System for details.

Please 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.

Page 10

Waterside Flow

Waterside Flow (primary circuit)

The Vitodens 200-W, WB2B is designed for closed loop, forced circulation hot water heating systems only.

H(ft.)

19.7

16.4

13.1

9.8

6.6

3.3

Supply head pressure (water)

Fig. 11

H(ft.)

20.1 6.1

16.7

13.4

10.0 3.1

6.7 2.0

H(m)

0 500 1000 1500 0 2.2 4.4 6.6 8.8 GPM

H(m)

5.1

4.1

2000 l/h

Pressure drop (primary circuit) for Vitodens 200-W, WB2B 19, 26, 35

For sizing an on-site circulation system. Max. flow rate: 1400 L/h / 6.2 GPM

Pressure drop (primary circuit) for Vitodens 200-W, WB2B 45, 60

For sizing an on-site circulation system. Max. flow rate 3500 L/h / 15.4 USGPM

3.4 1.0

0 0

Supply head pressure (water)

Fig. 12

H(ft.) H(m)

33.5

30.1 9.2

6.7

Supply head pressure (water)

Fig. 13

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. 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 page 13 for low-loss header information.

10.2

8.226.8

7.123.4

6.120.1

5.116.7

4.113.4

3.110.0

2.0

1.03.4

0 0

500 1000 1500 2000 2500

2.2 4.4 6.6 8.8 11

1000

4.4

2000 3000

8.8 13.2 17.6 22.0 26.4 30.8 35.2

4000

5000 6000

3000 3500

13.2

7000

15.4

8000 l/h

l/h

GPM

Pressure drop (primary circuit) for Vitodens 200-W, WB2B 80, 105

For sizing an on-site circulation system. Max. flow rate 8000 L/h / 35.2 USGPM

GPM

Page 11

Typical System Flow Rates

System Flow Rates

Table 2.

Model WB2B 19 26 35

∆∆∆∆

t for NG/LPG

Output (NG/LPG)

20ºF rise (GPM) 6.1 8.5 11.4 25ºF rise (GPM) 4.9 6.8 9.1 30ºF rise (GPM) 4.1 5.7 7.6 35ºF rise (GPM) 3.5 4.9 6.5 40ºF rise (GPM) 3.1 4.3 5.7

Table 3.

Model WB2B 45 60

∆∆∆∆

t for NG/LPG

Output (NG/LPG)

20ºF rise (GPM) 14.6 19.4 25ºF rise (GPM) 11.7 15.5 30ºF rise (GPM) 9.7 12.9 35ºF rise (GPM) 8.3 11.1 40ºF rise (GPM) 7.3 9.7

Table 4.

Model WB2B 80 105

∆∆∆∆

t for NG/LPG

Output (NG/LPG)

20ºF rise (GPM) 26.0 35.0 25ºF rise (GPM) 20.8 28.0 30ºF rise (GPM) 17.3 23.3 35ºF rise (GPM) 14.9 20.0 40ºF rise (GPM) 13.0 17.5

Btu/h

61 000 85 000 114 000

Btu/h

146 000 194 000

260 000 350 000

Boiler max. flow rate 1400 L/h (6.2 GPM)

Boiler max. flow rate 3500 L/h (15.4 GPM)

Boiler max. flow rate 8000 L/h (35.2 GPM)

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. Once the low-loss header is connected, the built-in low-loss header logic of the Vitodens 200-W boiler ensures the required See page 13 for low-loss header information.

∆∆∆∆

T across the system through the sensory communication between the low-loss header and the boiler.

Page 12

Pump Information

Heating Circuit / Boiler Pumps

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 29). See tables below for recommended pumps. Refer to the graphs on page 10 for the proper waterside boiler friction loss calculations.

IMPORTANT

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

The following pumps have been selected based on boiler heat exchanger head loss and boiler piping to a low-loss header. 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.

Table 5.

Model WB2B 19 26 35

Flow rate

20 ºF

∆∆∆∆

25 ºF

∆∆∆∆

30 ºF

∆∆∆∆

35 ºF

∆∆∆∆

40 ºF

∆∆∆∆

Flow limitation L/h / GPM 1400 / 6.2

Recommended boiler pumps Grundfos 15-58 (3-speed)

6.1 8.5 11.4

4.9 6.8 9.1

4.1 5.7 7.6

3.5 4.9 6.5

3.1 4.3 5.7

Taco 00R

Wilo Star S 21 FX

Table 6.

Model WB2B 45

Flow rate Boiler pressure

20 ºF

∆∆∆∆

25 ºF

∆∆∆∆

30 ºF

∆∆∆∆

35 ºF

∆∆∆∆

40 ºF

∆∆∆∆

Flow limitation L/h / GPM 3500 / 15.4

Table 7.

Model WB2B 60

20 ºF

∆∆∆∆

25 ºF

∆∆∆∆

30 ºF

∆∆∆∆

35 ºF

∆∆∆∆

40 ºF

∆∆∆∆

Flow limitation L/h / GPM 3500 / 15.4

14.6 15.8 UPS 26-99FC, 115V, Speed3

11.7 10.0 UPS 26-99FC, 115V, Speed2 UP 26-64F, 115V

9.7 7.5 UPS 26-99FC, 115V, Speed2

8.3 5.8 UPS 26-99FC, 115V, Speed1

7.3 4.2 UPS 26-99FC, 115V, Speed1

Flow rate Boiler pressure

19.4 Not Recommended Not Recommended

15.5 16.7 UPS 26-99FC, 115V, Speed3

12.9 12.6 UPS 26-99FC, 115V, Speed3 UP 26-64F, 115V

11.1 9.2 UPS 26-99FC, 115V, Speed2 UP 26-64F, 115V

9.7 7.5 UPS 26-99FC, 115V, Speed2

drop (ft.)

Recommended pump option 1

Grundfos

Recommended pump option 1

Grundfos

Recommended pump option 2

Grundfos

Recommended pump option 2

Grundfos

Page 13

Pump and Low-Loss Header Information

Heating Circuit / Boiler Pumps

Table 8.

Model WB2B 80

20 ºF

∆∆∆∆

25 ºF

∆∆∆∆

30 ºF

∆∆∆∆

35 ºF

∆∆∆∆

40 ºF

∆∆∆∆

Flow limitation L/h / GPM 8000 / 35.2

Table 9.

Model WB2B 105

20 ºF

∆∆∆∆

25 ºF

∆∆∆∆

30 ºF

∆∆∆∆

35 ºF

∆∆∆∆

40 ºF

∆∆∆∆

Flow limitation L/h / GPM 8000 / 35.2

Table 10. Sizing of Low-Loss Header in a Residential Single-Boiler Application

Boiler Model

WB2B 19 1 6.1

WB2B 26 1 6.1

WB2B 35 1 6.1

WB2B 45 1 15.4

WB2B 60 1 15.4

WB2B 80 1 35

WB2B 105 1 35

No. of Boilers

Boiler

Max.

Flow Rate

1385

3498

7949

(continued)

Flow rate Boiler pressure

26.0 16.7 UPS 32-160/2, 115V, Speed1 / UPS 26-150F, 115V, Speed 3

20.8 9.2 UPS 26-99FC, 115V, Speed3

17.3 6.5 UPS 26-99FC, 115V, Speed2

14.9 4.8 UPS 26-99FC, 115V, Speed2

13.0 3.4 UPS 26-99FC, 115V, Speed2

Flow rate Boiler pressure

35.0 30.0 UPS 32-160/2, 115V, Speed3

28.0 20.0 UPS 32-160/2, 115V, Speed2 / UPS 26-150F, 115V, Speed 3

23.3 12.5 UPS 32-160/2, 115V, Speed1

20.0 9.0 UPS 26-99FC, 115V, Speed3

17.5 6.4 UPS 26-99FC, 115V, Speed2

Typical System Flow Rates Viessmann

System

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

∆∆∆∆

t *1

drop (ft.)

1385

80/60

1931

80/60

2589

80/60

3316

80/60

4406

80/60

5905

120/80

7949

120/80

11.0

6.1

Yes

8.5

Yes

11.4

Yes

14.6

Yes

19.4

Yes

26.0

Yes

35.2

Yes

13.9

4.9

1108

Optional

80/60

6.8

1544

Yes

80/60

9.1

2071

Yes

80/60

11.7

2653

Optional

80/60

15.5

3525

Yes

80/60

20.8

4724

Yes

120/80

28.0

6359

Yes

120/80

16.8

4.1

924

Optional

80/60

5.7

1287

Optional

80/60

7.6

1726

Yes

80/60

9.7

2211

Optional

80/60

12.9

2937

Optional

80/60

17.3

3937

Optional

120/80

23.3

5300

Yes

120/80

Recommended pump

Grundfos

Recommended pump

Grundfos

16.1

3.5

792

Optional

80/60

4.9

1103

Optional

80/60

6.5

1480

Yes

80/60

8.3

1895

Optional

80/60

11.1

2518

Optional

80/60

14.9

3374

Optional

120/80

20.0

4542

Optional

120/80

13.4

Optional

80/60

Optional

80/60

1295

Optional

80/60

1658

Optional

80/60

2203

Optional

80/60

13.0

2953

Optional

120/80

17.5

3975

Optional

120/80

3.1

693

4.3

965

5.7

7.3

9.7

°F

°C

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

Temp. Sensor Required

Yes

For system ∆t < 20°F use low-loss header sizes for ∆t 20°F.

Page 14

Low-Loss Header Information

Low-Loss Header Application

Table 11. Sizing of Low-Loss Header in a Commercial Multiple-Boiler Application

Boiler Model

WB2B 45 2 15.4

WB2B 45 3 15.4

WB2B 45 4 15.4

WB2B 60 2 15.4

WB2B 60 3 15.4

WB2B 60 4 15.4

WB2B 80 2 35

WB2B 80 3 35

WB2B 80 4 35

WB2B 105 2 35

WB2B 105 3 35

WB2B 105 4 35

No. of Boilers

Boiler Max. Flow Rate

3498

79497015899

7949

79497015899

7949

Total Flow Rate

30.8 6995

46.2 10493

61.6 13991

30.8 6995

46.2

10493

61.6

13991

105

23848

140

31797

105

23848

140

31797

(continued)

Typical System Flow Rates Viessmann

System

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

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

∆∆∆∆

t *1

11.0

29.2

6632

Yes

120/80

43.8

9948

Yes

160/80

58.4

13264

Yes

200/120

38.8

8812

Yes

160/80

58.2

13219

Yes

200/120

77.6

17625

Yes

200/120

52.0

11810

Yes

200/120

78.0

17716

Yes

200/120

104.0

23621

Yes

250/150

15899

Yes

200/120

105

23848

Yes

250/150

140

31797

Yes

300/200

13.9

23.4

5306

Yes

120/80

35.0

7958

Yes

120/80

46.7

10611

Yes

200/120

31.0

7050

Yes

120/80

46.6

10575

Yes

200/120

62.1

14100

Yes

200/120

41.6

9448

Yes

160/80

62.4

14173

Yes

200/120

83.2

18897

Yes

250/150

12719

Yes

200/120

19078

Yes

250/150

112

25438

Yes

250/150

16.8

19.5

4421

Yes

120/80

29.2

6632

Yes

120/80

38.9

8843

Yes

160/80

25.9

5875

Yes

120/80

38.8

8812

Yes

160/80

51.7

11750

Yes

200/120

34.7

7874

Yes

160/80

52.0

11810

Yes

200/120

69.3

15747

Yes

200/120

10599

Yes

200/120

15899

Yes

200/120

21198

Yes

250/150

16.1

16.7

3790

Yes

120/80

25.0

5685

Yes

120/80

33.4

7579

Yes

120/80

22.2

5036

Yes

120/80

33.3

7554

Yes

120/80

44.3

10071

Yes

160/80

29.7

6749

Yes

160/80

44.6

10123

Yes

200/120

59.4

13498

Yes

200/120

9085

Yes

160/80

13627

Yes

200/120

18170

Yes

200/120

13.4°F°C

14.6

3316

Yes

120/80

21.9

4974

Yes

120/80

29.2

6632

Yes

120/80

19.4

4406

Yes

120/80

29.1

6609

Yes

120/80

38.8

8812

Yes

160/80

26.0

5905

Yes

160/80

39.0

8858

Yes

160/80

52.0

11810

Yes

200/120

7949

Yes

160/80

11924

Yes

200/120

15899

Yes

200/120

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

GPM

L/h

Temp.Sensor Required

Yes

NOTE: for multiple boiler applications when using the the Vitodens 200-W, WB2B boilers, refer to the multiple boiler low-loss distribution

manifold installation instructions.

For system ∆∆∆∆t < 20°F use low-loss header sizes for ∆∆∆∆t 20°F.

Low-Loss sensor - standard equipment of the Vitocontrol-S WB2B: for use in multiple boiler applications.

Page 15

DHW Production

Domestic Hot Water 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.

PRV

Fig. 14

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) *

See page 38 for alternate DHW connection.

Fig. 15

*1DHW Connections

(Field Supplied)

IMPORTANT

An adequately sized precharged expansion tank must be used. See Installation Examples for details.

Page 16

DHW Recirculation

Domestic Hot Water Recirculation

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.

DHW

DCW

Fig. 16

Legend

DCW Domestic Cold Water DHW Domestic Hot Water TPV Temperature and Pressure Relief

R DHW Recirculation Line RP DHW Recirculation Pump

Vitocell-V stand-alone DHW storage tank

Valve (on tank - not shown)

DCW

Page 17

Wall Mounting

Models WB2B 19, 26, 35

The Vitodens 200-W, models WB2B 19 to 35 comes with a template, which allows you to easily mark the location of the screws for the mounting bracket and the location of the flue gas pipe on the wall.

Legend

A Reference point top edge Vitodens 200-W B Mounting bracket C Vitodens 200-W mounting template

Fig. 17

1. Loosen the screws at the bottom of the boiler.

2. Remove front enclosure panel.

3. Mount boiler onto the mounting bracket

and connect boiler to the installation fittings.

Fig. 18

Page 18

Wall Mounting

Models WB2B 45, 60, 80, 105

The Vitodens 200-W, models WB2B 45 to105 comes with a template, which allows you to easily mark the location of the screws for the mounting bracket and the location of the flue gas pipe on the wall.

Fig. 19

Legend

A Reference point top edge Vitodens 200-W B Mounting bracket C Vitodens 200-W mounting template

1. Loosen the screws at the bottom of the boiler.

2. Remove front enclosure panel.

3. Mount boiler onto the mounting bracket

and connect boiler to the installation fittings.

Fig. 20

Page 19

Condensate Connection/Neutralization Unit

(effluent

)

Condensate Connection

Install the condensate drain pipe with a suitable gradient. Discharge condensate from the boiler into the drainage system, either directly or (if required) via a neutralization unit (accessory).

IMPORTANT

Pipe ventilation must take place between the siphon trap and the neutralization unit (if applicable).

Condensate Connection for Vitodens 200-W, models WB2B 19, 26, 35

Fig. 21

Condensate Drainage and Neutralization

The condensate formed both in the condensing boiler and in the flue gas pipe must be discharged into the public sewage system in accordance with all applicable local regulations. The condensate produced by a gas-fired heating system has a pH value between 3 and 4.

Some local codes may require the use of a separate neutralization unit to treat the aggressive and corrosive nature of the condensate. With a neutralization unit installed, all condensate from the boiler and the flue gas pipe enters into the neutralization unit where it is treated and released into the public sewage system with a safe pH value of above 6.5.

The use of neutralization granulate (performing the neutralizing process) is dependent on the operation of the heating system. To determine the required refill amount, check granulate level several times during the first year of operation. In some cases one granulate fill may last an entire year.

Condensate Connection for Vitodens 200-W, models WB2B 45, 60

Fig. 22

The condensate discharge outlet to the drainage system connection must be clearly visible. It must be installed with a suitable gradient and provided with a stench trap.

If the condensate outlet of the Vitodens 200-W boiler is lower than the drain, a condensate pump must be used.

Only corrosion-resistant materials must be used for condensate drainage purposes (e.g. braided hose). Do not use galvanized materials or materials containing copper for piping, couplings etc. The condensate drain must have a trap to prevent flue gas leakage.

Please note that other requirements might apply depending on local regulations and/or project-specific details.

Condensate Connection for Vitodens 200-W, models WB2B 80, 105

Fig. 23

It is advisable to contact your local waterworks office (authority responsible for waste water regulations) well before commencing with the installation of the neutralization unit in order to establish details of local regulations that apply.

The following table shows the concentration of (effluent) substances (e.g. heavy metals) contained in the waste water from the Vitodens 200-W condensing boiler.

Table 12.

Condensate (effluent) substances

Lead Cadmium Chromium Copper Nickel Zinc Tin

Values measured

in mg/L

Vitodens 200-W

< 0.01 < 0.005 < 0.01 < 0.01 < 0.01 < 0.05 < 0.05

Contact Viessmann to order a neutralization unit for the Vitodens 200-W boiler. See Viessmann Price List for order information.

Page 20

Venting Options / Electrical Connection / Boiler Control

Venting Options

For an overview of venting options refer to the appendix starting on page NO TAG. For detailed information refer to the Installation Instructions for the Vitodens 200-W, WB2B Venting System.

Fig. 24

Vent Connection, models WB2B 19, 26, 35

Fig. 25

Vent Connection, models WB2B 45, 60, 80,105

(with optional air intake openings on sides)

Electrical Connection

For an overview of the required wiring refer to pages 39 (for WB2B 19 to 60) and 40 (for WB2B 80 and 105).

Power Supply

The Vitodens 200-W is shipped with a Power / Pump Module. The module requires a 120 VAC power supply from a wall receptacle. The module contains a 120/230 VAC step-up transformer to power the Vitodens 200-W with 230 VAC. Refer to the Installation Instructions shipped with the module for wiring details, or reference the “Overview of Electrical Connections” on pages 39 and 40 of this manual.

Power Supply Connection of Accessories

The power supply connection of accessories can be made directly at the boiler control. The connection is activated and deactivated with the system on/off switch. The mixing valve accessory kit and the Vitosolic control (if used) will require a separate 120 VAC power supply from the wall receptacle.

Wire cabling required for:

H outdoor temperature sensor H Vitotronic 200-H, HK1M mixing valve

control

H accessory kit for heating circuit with

mixing valve

H Vitotrol 200 remote control H Vitotrol 300 remote control H remote switching of operating mode H remote disable H alarm output

On-Board Vitotronic 200, HO1 Outdoor Reset Control

The on-board Vitodens menu-driven Vitotronic 200, HO1 control provides the following:

RESET

Boiler temp.

M o

140

Fig. 26

Page 21

Design and Functions

Boiler Control

Modular Structure

The control unit contains: System on/off switch, override/emission test switch, fixed high limit, adjustable high limit, digital display, micro-computer, adjustment options for switching times, for temperatures during normal and reduced operation, domestic hot water temperature, adjustment options for heating curves, temperature scanning options, built-in diagnostic system and fuses, reset button, analogue pressure display.

Programming Unit

H Illuminated display with plain text support H Adjustment and display of temperatures

and codes

H All settings, main codings and fault

messages shown in plain text

H Holiday program H Party button for switching to ”normal

operation” whenever required

H Energy savings button for lowering the

desired room temperature by approx.

3.6°F / 2°C in normal operation

H Rotary selector for the temperature in

standard mode

H Keys:

- Program selection

- Holiday program

- Party and economy mode

- Temperature for reduced mode

- DHW temperature

- Emissions test function

- Time/date

Boiler-Specific Functions

The control unit adjusts the boiler water temperature (= supply temperature of a direct-connected heating circuit and/or a heating circuit with mixing valve in conjunction with the accessory kit for a heating circuit with mixing valve) automatically and on a continuous basis to individual outdoor temperatures. The control has a DHW temperature controller with DHW priority switching (heating circuit pump off).

Functions

H Outdoor reset control of boiler water

and/or supply temperature

H Electronic maximum temperature limit H Demand-dependent heating circuit pump

and burner OFF control

H Anti-seizing pump protection H Maintenance display H Heating system frost protection H Integral diagnostic system H DHW temperature control with priority

control

H Auxiliary function for DHW heating

(short-term heating to a higher temperature, gas fired central heating boiler)

H Adjusting switching times for the DHW

recirculation pump

H 0-10 V external signal input H Boiler pump contol output H Alarm output H Heating circuit pump control output H DHW pump control output H DHW recirculation pump control output

Control Characteristics

PI characteristics with modulating output.

Time Switch

Digital time switch.

H Individual and 7-day program H Automatic daylight savings time

changeover

H Automatic function for DHW heating and

DHW recirculation pump

H Time, day and standard switching times

for space heating, DHW heating and the DHW circulation pump are factory-set

H Switching times are individually

programmable, i.e. up to four switching

periods per day Shortest switching interval: 10 minutes Power backup: 14 days.

Setting the Heating Programs

The heating system frost protection (see frost protection function) applies to all heating programs. You can select the following heating programs wiyh the program keys:

H Heating and DHW H DHW only H Standby mode

External heating program changeover.

Summer Operation

Heating program “ The burner is only activated upon a call for domestic hot water from the DHW storage tank (controlled by DHW tank temperature sensor).

Frost protection

H The frost protection function will be

started when the ouside temperature drops below approx. 34°F / +1°C. With the frost protection function, the heating circuit pump will be switched ON and the boiler water is maintained at a lower temperature of approx. 68°F / 20° C. The DHW tank will be heated to approx. 68°F / +20°C.

H The frost protection function will be

stopped when the outside temperature rises above approx. 37°F / +3°C (default settings).

Technical Data

Rated supply voltage: 120 VAC Rated frequency: 60 Hz Rated current: 12 A Max. ambient temperature

H at operation: 32 to 104ºF

H when storing or

transporting: –4 to +158ºF

Max. operating temp. setting (space heating): Models WB2B 19-60 165ºF / 74ºC Models WB2B 80-105 176ºF / 80ºC DHW production: Models WB2B 19-60 165ºF / 74ºC Models WB2B 80-105 176ºF / 80ºC Setting fixed high limit: 210ºF / 99ºC

Adjustment range of DHW tank set-point temperature: 50 to 154ºF

Adjustment range heating curves

H Heating curve

H slope 0.2 to 3.5

H Heating curve

H shift: –12 to +33ºC

w“

0 to 40ºC Installation in living spaces or boiler rooms (standard ambient conditions)

–20 to +70ºC

(not adjustable)

10 to 68ºC

–13 to 40 K

Page 22

Boiler Control

Heating Curve Adjustment (slope and shift)

The control unit regulates the boiler water temperature (= supply temperature of heating circuit without mixing valve) and the supply temperature of the heating circuit with mixing valve (in conjunction with the accessory kit for a heating circuit with mixing valve) according to the outdoor temperature. The boiler water temperature is automatically raised by 0 to 72 F / 0 to 40 K higher than the currently required set supply termperature (in the factory default setting the differential temperature is

14.4 F / 8 K). See Start-up/Service Instructions for coding address “9F” in coding level 2. The supply temperature that is required to achieve a given room temperature depends on the heating system and the thermal insulation of the building that is being heated. The adjustment of the two heating curves is used to match the boiler water temperature and the supply temperature to these conditions. The boiler water temperature is limited upwards by the fixed high limit and the temperature set for the electronic high limit. The supply temperature cannot rise above the boiler water temperature.

Boiler water or

95 35

Fig. 27

ºF / ºC

194

176

158

140

122

104

flow temperature

86 30

77 25

Room set-point temperature

68 20

3,4

50 41 32 23 14 5 -4 -13 -22

60 15

50 10

41 5

ºF ºC

Boiler Temperature Sensor

The boiler temperature sensor is connected at the control unit for weather-responsive operation and is built into the boiler. Max. ambient temperature

H at operation: 32 to 266ºF

H when storing or

transporting: – 4 to+158ºF

DHW Tank Temperature Sensor

Part No. 7179 114

Supplied with: H Cable length approx. 13 ft. / 3.75 m,

ready to plug in

H All pipe connections are field supplied.

Specification

Max. ambient temperature

H at operation: 32 to 194ºF

H when storing or transporting:

3,0

2,8

3,2

0 -5 -10 -15 -20510

2,4

2,6

2,2

Outdoor temperature

–20 to +70ºC

0 to 90ºC

– 4 to+158ºF –20 to+ 70ºC

2,0

1,8

0 to 130ºC

1,6

1,4

1,2

1,0

0,8

0,6

0,4

0,2

-30-25

Outdoor Temperature Sensor

Fig. 28 (dimensions in mm)

Sensor location:

H North or northwest wall of building H 6.6 to 8.2 ft. / 2 to 2.5 m above ground

or in case of a multi-storey building

approx. halfway up the second floor Electrical connection: H 2-wire cable, max. cable length 115 ft. /

35 m with a wire size of min. AWG 16

copper H Cable to the outdoor sensor must not be

laid near line voltage wiring

(120/240 V) Max. ambient temperature at operation, when storing or transporting: –40 to+158ºF

–40 to +70ºC

ºC ºF

Legend

Low temperature heating system, e.g. radiant floor heating Medium temperature heating system, e.g. cast iron radiation, staple-up radiant floor heating High temperature heating system, e.g. fintube radiation, fan coils

Page 23

Vitotronic Control Accessories

Control Accessories

Mixing Valve Actuator Accessory Kit,

Part No. 7133 392

Fig. 29 (dimensions in mm)

Rated voltage: 120 VAC Rated frequency: 60 Hz Rated current: 4 (2) A Power consumption: 4 W Max. ambient temperature

H at operation: 32 to 104ºF

H when storing

H or transporting: –4 to +149ºF

Relay output for heating circuit pump: 4(2) A, 120 VAC Actuator torque: 3 Nm Time of 90 º: 2 minutes

(old version)

0 to 40ºC

–20 to +65ºC

Supply Temperature Sensor

(strap-on sensor,

included with mixing valve actuator accessory kit), Part No. 7133 895

H when storing or transporting: –20 to+70ºC

(old version)

Mixing Valve Actuator Accessory Kit,

Part No. 7837 524 (new version)

Fig. 31 (mm)

The mixing valve actuator is mounted directly on the Viessmann ¾ to 2½“ mixing valve. The mixing valve actuator is a motor-driven control unit. The rotational direction is reversible. The mixing valve actuator comes with a plug-in connector for a heating circuit pump, supply temperature sensor (strap-on sensor with 7 ft. / 2.1 m connecting cable),

supply connecting cable (9 ft. / 2.7 m)

connecting cable ( KM-BUS Expansion Module.

Rated voltage: 120 VAC Rated frequency: 60 Hz Rated current: 4 A

Power consumption: 5W max. ambient temperature

- at operation: 32ºF to 104ºF (0ºC to 40ºC) application in living areas and installation

sites (normal ambient conditions)

storage & shipping: -4ºF to 149ºF (-20ºC to 65ºC) Max. relay outputs at 120 VAC for:

- Heating circuit pump 1.0 A

- Mixing valve 0.2 A

9 ft. / 2.7

m) for the

power

and a

Supply Temperature Sensor

Part No. 7183 288 (new version)

LON Communication Module

Part No. 7179 113 Electronic PCB for data exchange with the Vitotronic 200-H, Vitocom 200 and for connecting to a higher level building management system.

LON Connecting Cable

(for data exchange between control units)

Cable length 23 ft / 7m, fully wired

Fig. 33

LON Terminal End Resistor

Part No. 7143 497 To terminate the LON BUS at the first and the last control unit.

KM BUS Expansion Module

Part No. 7133 393 To connect 2 to 9 devices (mixing valve actuator, Vitotrol, input module, etc.) to the single KM BUS connection of the boiler.

Fig. 34 (dimensions in mm)

Specification

Lead lenght 10 ft / 3.0 m,

fully wired

Permissable ambient temperature

- during operation 32 to 104°F 0 to 40°C

- during storage and

transport - 4 to+149°F

-20 to +65°C

Fig. 30 (dimensions in mm)

Installed with a strapping band.

Cable length 19.7 ft. / 6 m, ready to plug in.

Max. ambient temperature

H at operation: 32 to 212ºF

H when storing or transporting:

–4 to+149ºF (–20 to+70ºC)

0 to 100ºC

Fig. 32 (mm)

Immersion temperature sensor

Part No. 7173 488 To capture the low loss temperature

Specification

Lead length 12 ft / 3.75 m,

fully wired

Permissable ambient temperature

- during operation 32 to 194°F

0 to 90°C

- during storage and

transport - 4 to+158°F

-20 to +70°C

Page 24

Vitotronic Control Accessories

Vitotrol 200

Part No. 7450 017

Fig. 35 (dimensions in mm)

KM BUS subscriber The Vitotrol 200 remote control regulates the heating program for one heating circuit and the required set room temperature in standard mode, from any room in the house. The Vitotrol 200 is equipped with backlit heating program selection keys as well as a party and economy key. The fault display shows faults on the control unit. WS function: Installation anywhere in the building. RS function: Installation in the main living room on an internal wall opposite radiators. Never install inside shelf units, recesses, immediately by a door or heat source (e.g. direct sunlight, fireplace, TV set, etc.). The integral room tempearutre sensor captures the actual room temperature and effects any necessary corrections of the supply temperature as well as a rapid heat-up at the start of the heating operation (if appropriately programmed). Connection:

2-core lead, length max. 164 ft / 50 m (even if connecting several remote control units)

H Never route this lead immediately next to

230/400 V cables

H LV plug part of the standard delivery

Specification

Power supply via KM BUS Power consumption 0.2 W Protection class III Max. ambient temperature

H at operation: 32 to 104ºF–

H when storing

H or transporting: –4 to+149ºF

Set room temp. range 50 to 86ºF

The set room temperature for reduced mode is adjusted at the control unit.

0 to 40ºC

–20 to +65 ºC

10 to 30ºC adjustable from 37 to 74ºF

3 to 23ºC or 63 to 99ºF 17 to 37ºC

Vitotrol 300

Part No. 7248 907

Fig. 36 (dimensions in mm)

KM BUS subscriber The Vitotrol 300 remote control regulates the required set room temperature for one heating circuit in standard and reduced mode, the heating program and the switching times for central heating, DHW heating and the DHW circulation pump. The Vitotrol 300 provides a backlit display as well as backlit heating program keys, a party and economy key, automatic summer/winter time changeover, keys for holiday program, day and time. WS function: Installation at any point in the building. RS function: Installation in the main living room on an internal wall opposite radiators. Never install inside shelf units, niches, immediately by a door or heat source (e.g. direct sunlight, fireplace, TV set, etc.) The integral room temperature sensor captures the actual room tempeture and affects any necessary correction of the supply temperature as well as a rapid heat-up at the start of the heating operation (if suitable encoded). Connection:

2-core lead, length max. 164 ft / 50 m (even if connecting several remote control units)

H Never route this lead immediately next to

230/400 V cables

H LV plug part of the standard delivery

Specification

Power supply via KM BUS Power consumption 0.5 W Protection class III Max. ambient temperature

H at operation: 32 to 104ºF–

H when storing

H or transporting: –4 to+149ºF

Set room temp. range for standard mode 50 to 86ºF

for reduced mode 37 to 99ºF

0 to 40ºC

–20 to +65ºC

10 to30ºC adjustable from 37 to 74ºF

3 to 23ºC or 63 to 99ºF 17 to 37ºC

3 to 37ºC

Room Temperature Sensor,

Part No. 7133 379

Fig. 37 (dimensions in mm)

Separate room temperature sensor as supplement to the Vitotrol 200 and 300; to be used if the the Vitotrol 200 or 300 cannot be installed inside the main living room or in a suitable position where the unit can capture and adjust the temperature. Installation in the main living room on an internal wall opposite radiators. Never install inside shelf units, recesses, immediately by a door or heat source (e.g. direct sunlight, fireplace, TV set, etc.). Connect the room temperature sensor to the Vitotrol 200 or 300. Electrical connection: H 2-wire cable with a wire size of min. AWG

18 copper

H The cable length between the control unit,

remote control unit and room temperature

sensor must not exceed 98 ft./30 m Max. ambient temperature H at operation: 32 to 104ºF–

0 to 40ºC

H when storing

H or transporting: –4 to+149ºF

–20 to +65ºC

Page 25

Accessories for Vitodens 200-W

Boiler Accessories

Neutralization Unit for Single-Boiler Applications

with neutralizing granulate

for models WB2B 19, 26, 35 Part No. 7134 231

310

Fig. 38 (dimensions in mm)

for models WB2B 45, 60 Part No. 7134 232

400

Fig. 39 (dimensions in mm)

for models WB2B 80, 105 Part No. 7264 769

DN 40

Ø 145

DN 40

400

476

300

Ø 145

Fuel Conversion Label Kit (NG>LPG)

Part No. 7428 427 (included in boiler technical literature set) The Vitodens 200-W, WB2B boiler comes factory set for operation with natural gas. All WB2B models can be field converted to operate with liquid propane gas (as well as back to natural gas as required). The kit includes instructions and labels for field conversion.

185

Low-Loss Header

–Type 80/50 Part No. 7134 230 (max. flow rate 17.6 GPM / 4 m3/h) –Type 120/80 Part No. 7134 244 (max. flow rate 35.2 GPM / 8 m3/h) –Type 160/80 Part No. 7134 293 (max. flow rate 44 GPM / 10 m3/h ) –Type 200/120 Part No. 7134 294 (max. flow rate 80 GPM / 18 m3/h )

Fig. 41

When used in conjunction with the Vitodens 200-W boiler, the low-loss header acts as hydraulic break, decoupling boiler and system circuits from each other. It is recommended to use the low-loss header in applications in which the total system flow rate exceeds the maximum (or minimum) boiler flow rate. For maximum boiler flow rates, see pages 10 and 11 in this manual. Viessmann strongly recommends the use of a low-loss header in cases where the system head and flow rates are unknown.

Fig. 40 (dimensions in mm)

Neutralization Pellets

for models WB2B 19, 26, 35, 45, 60 Part No. 9524 670 2 x 1.3 kg for refill or replacement purposes

for models WB2B 80, 105 Part No. 9521 702 8 kg for refill or replacement purposes

Floor-mounted version (typically used for multiple-boiler installations).

Page 26

Boiler Accessories

Accessories for Vitodens 200-W

(continued)

Low-Loss Header (continued)

The temperature sensor connection [TS] typically located at the top of the low-loss header ensures low return temperatures to the Vitodens 200-W boiler at all times, increasing operational efficiency. In addition, the low-loss header helps eliminate air and debris [D] from the heating system. See figures on the right for an illustration of the principle of operation.

The low-loss header is available in the following sizes. Select the size based on the maximum system flow rate of your application.

Table 13.

Model No. Max. system flow rate

Type 80/50 17.6 GPM / 4 m3/h

Type 120/80 35.2 GPM / 8 m3/h

Type 160/80

44 GPM / 10 m3/h

Type 200/120*180 GPM / 18 m3/h

Floor-mounted version (typically used for multiple-boiler installations).

Fig. 42

Low-loss header design (Type 80/50 or 120/80)

Legend

AB Air Bleed BR Boiler Return BS Boiler Supply BY Bypass (with laminar flow) D Debris and/or air DV Drain Valve SC Sensor Cable SR System Return SS System Supply TS Viessmann Temperature Sensor SW Sensor Well

IMPORTANT

Use only a Viessmann supplied temperature sensor. Do not use any other manufacturer’s temperature sensor.

Fig. 43

primary

bypass

Principle of Operation

Legend

T1 Boiler supply temperature T2 Boiler return temperature T3 System supply temperature T4 System return temperature V

primary

secondary

bypass

primary

secondary

T4V

secondary

primary

T1 > T3

Boiler circuit flow rate Heating circuit flow rate Bypass flow rate Heat supplied by boiler Heat consumed by system

< V

secondary

T2 = T4 Q

primary

= Q

secondary

T1 ± 167°F / 75°C V

secondary=Vprimary+Vbypass

IMPORTANT

When installing a low-loss header, the system mixed supply temperature (T3) must be calculated as follows:

T3=

T1 × V

primary

secondary

+T4 V

bypass

Page 27

Standard Equipment

Boiler Standard Equipment / Combustion Management System

The Vitodens 200-W gas-fired condensing boiler with Inox-Radial heat exchanger, modulating MatriX cylinder burner for liquid propane gas and natural gas (available on all models), comes standard with:

H pressure gage H installation fittings with 30 psig pressure

relief valve and air vent (no air vent for models WB2B 80 and 105)

H boiler control unit with outdoor

temperature sensor, power/pump module

–

The boiler comes prewired and fully piped internally for field connections and

– Venting material (coaxial) is to be supplied

by Viessmann only. Side wall vent installations must include Viessmann protective screen!

– Enclosure finish:

black steel, powder-coated white

– The Vitodens 200-W comes ready for use

with natural gas and can be fuel

converted to liquid propane gas in the field.

- Power/Pump module

Lambda Pro Combustion Management System

The combustion management system utilizes the physical correlation between the level of the ionization current and the air factor λ. For all gas qualities, the maximum ionization current results with air factor 1. The ionization signal is evaluated by the combustion management system, and the air factor is adjusted to between λ=1.24 and 1.44. This range provides for an optimum combustion quality. Thereafter, the electronic gas valve regulates the required gas volume based on the prevailing gas quality. To check the combustion quality, the CO content or the O2content of the flue gas is measured. The actual values enable the prevailing air factor to be determined. The relationship between the CO2or O2content and air factor λ is illustrated in the table below.

prewired.

Wall mounting componentry

The following wall mounting components are supplied with the Vitodens 200-W boiler:

H Mounting bracket H Mounting bolts H Installation fittings H Screws for mounting bracket on

– wood studs (2” x 4”) – metal studs – brick/concrete wall

To achieve an optimum combustion control, the system regularly performs an automatic self-calibration; also after a power failure (shutdown). For this, the combustion is briefly regulated to max. ionization current (equals air factor λ=1). The automatic calibration is performed shortly after the burner starts and lasts approx. 5 s. During the calibration, higher than normal CO emissions may occur briefly. The combustion management system can also be calibrated manually, e.g. after maintenance or service work (coding address “85”, see Start-up/Service Instructions).

Table 14. Air factor λ - CO2/O2content

Air factor λ O2content (%) CO2content (%) for natural gas CO2content (%) for liquid propane gas

1.24 4.4 9.2 10.9

1.27 4.9 9.0 10.6

1.30 5.3 8.7 10.3

1.34 5.7 8.5 10.0

1.37 6.1 8.3 9.8

1.40 6.5 8.1 9.6

1.44 6.9 7.8 9.3

The Vitodens 200-W, WB2B boilers come equipped with Lambda Pro, the industry’s first intelligent combustion management system. The boiler adjusts automatically to any gas type and quality without the need for a fuel conversion kit.

Page 28

Installation Examples

Please note that in the following piping layout examples all pumps are field supplied.

IMPORTANT

The examples on the following pages depict possible piping layouts of the Vitodens 200-W boiler equipped with Viessmann System Technology. For boiler and tank combinations, please install only feasible combinations listed in the Viessmann Price List.

Please note that the following examples are simplified conceptual drawings only! Piping and necessary componentry must be field verified. A low water cut-off (LWCO) must be installed where required by local codes. Proper installation and functionality in the field is the responsibility of the heating contractor.

WARNING IMPORTANT

If a DHW storage tank other than a Viessmann Vitocell 100 or 300 tank is used, the installer must verify proper operation of the Viessmann DHW tank temperature sensor with the original manufacturer of the tank. Viessmann strongly recommends the installation of a temperature tempering valve in the DHW supply line.

DHW supply and return piping between boiler DHW connections and the Viessmann DHW tank connections, shall be a minimum of 1” nominal pipe diameter (for models WB2B 19 to 35) or 1¼” (for models WB2B 45 to105) DHW connection outlet sizes provided on the boiler and the DHW tank). This will ensure the residual head of the field supplied pump is fully utilized to overcome the resistance of the DHW heat exchanger coil and to provide sufficient water flow to the boiler heat exchanger. In non-Viessmann DHW tank applications, perform, in addition to the above, accurate calculations for DHW tank coil pressure drop versus boiler pump (field supplied) residual head to ensure sufficient water flow to the boiler heat exchanger. Failure to heed the above instructions may cause boiler short-cycling and inadequate DHW supply.

Page 29

System Layout 1

Vitodens 200-W, WB2B with a direct-connected heating circuit

Installation Examples

TPV

PRV

Fig. 44

Legend AV Air vent (models WB2B 19 to 60 only) PRV Pressure relief valve TPV Temperature and pressure relief valve

Vitodens 200-W WB2B boiler with Vitotronic 200, HO1 outdoor reset control Outdoor temperature sensor Remote control Vitotrol 300 (optional) Heating circuit Heating circuit pump sÖ DHW circulating pump sA DHW storage tank DHW tank temperature sensor Expansion tank Flow check valve DHW recirculation pump sK Power/Pump module

M Optional purge tee (field supplied)

Installation of ...

H radiator heating circuit (high-temp. circuit) H DHW production

... with the following flow conditions:

The flow rate of the heating circuit is less than the maximum possible water flow rate of the Vitodens 200-W WB2B boiler (see page 10 for maximum water flow rate of boiler).

The use of a low-loss header is strongly recommended if the maximum water flow rate in the application concerned exceeds the values shown in the applicable table on page 11, or if the system flow rates are unknown. The low-loss header is available as accessory part.

See following pages for installation examples with a low-loss header.

IMPORTANT

DHW circulating pump must pump into the Vitodens 200-W boiler (as illustrated).

Page 30

Installation Examples

System Layout 2

Vitodens 200-W, WB2B with a direct-connected heating circuit and low-loss header

PRV

TPV

Fig. 45

Legend AV Air vent (models WB2B 19 to 60 only) PRV Pressure relief valve TPV Temperature and pressure relief valve

Vitodens 200-W WB2B boiler with Vitotronic 200, HO1 outdoor reset control Outdoor temperature sensor Remote control Vitotrol 300 (optional) Heating circuit Boiler pump sÖ DHW circulating pump sA DHW storage tank DHW tank temperature sensor Expansion tank Flow check valve DHW recirculation pump sK Power/Pump Module

M Low-loss header N Optional purge tee (field supplied) O Viessmann temperature sensor for

low-loss header

P Heating circuit pump

Installation of ...

H radiator heating circuit (high-temp. circuit) H DHW production

... with the following flow conditions: The flow rate of the heating circuit is greater than the maximum possible water flow rate of the Vitodens 200-W WB2B boiler (see page 10 for maximum water flow rate of boiler). The use of a low-loss header is strongly recommended if the maximum water flow rate in the application concerned exceeds the values shown on page 11, or if the system flow rates are unknown. The low-loss header is available as accessory part.

20A

IMPORTANT

Please note location of expansion tank and flow check valveJ.

IMPORTANT

DHW circulating pump must pump into the Vitodens 200-W WB2B boiler (as illustrated).

IMPORTANT

DHW circulating pump must pump into the Vitodens 200 boiler (as illustrated).

Page 31

System Layout 3

Vitodens 200-W, WB2B with...

– DHW storage tank – one heating circuit with mixing valve and system separation

Installation Examples

Fig. 46

PRV

TPV

Legend AV Air vent (WB2B models 19 to 60 only) PRV Pressure relief valve TPV Temperature and pressure relief valve

Vitodens 200-W WB2B boiler with Vitotronic 200, HO1 outdoor reset control Outdoor temperature Remote control Vitotrol 300 (optional) Underfloor heating circuit Mixing valve temperature sensor

Heating circuit pump

Heating circuit pump located upstream of heat exchanger (see IMPORTANT note to the right) Plate heat exchanger for system separation Accessory kit for heating circuit with mixing valve DHW circulating pump sA DHW storage tank DHW tank temperature sensor Expansion tank

M DHW recirculation pump sK N Power/Pump module O Optional purge tee (field supplied) P Flow check valve

Installation of ...

H underfloor heating circuit with 3-way

mixing valve and system separation

(low-temp. circuit) H DHW production ... with the following flow conditions: The flow rate of the heating circuit is less than the maximum possible water flow rate of the Vitodens 200-W WB2B boiler. See page 10 for maximum water flow rate of the Vitodens 200-W WB2B boilers. The use of a low-loss header is recommended if the system water flow rate is unknown. The low-loss header is available as accessory part.

See following pages for installation examples with a low-loss header.

IMPORTANT

System separation is required of underfloor heating systems employing non-oxygen diffusion barrier tubing. All components on the secondary side of the heat exchanger must be made of corrosion-resistant materials.

IMPORTANT

DHW circulating pumpImust pump into the Vitodens 200-W WB2B boiler (as illustrated).

IMPORTANT

Sizing of field-supplied pumpF2is critical for proper boiler operation in this system layout. See page 10 for the supply head pressure drop of the boiler. An undersized pump may cause short-cycling and/or improper operation of the boiler. Viessmann STRONGLY recommends using a low-loss header and a boiler pump in this system layout.

Page 32

Installation Examples

System Layout 4

Vitodens 200-W, WB2B with...

– DHW storage tank – one direct-connected heating circuit – one heating circuit with a mixing valve

TPV

Fig. 47

Legend AV Air vent (WB2B models 19 to 60 only) PRV Pressure relief valve TPV Temperature and pressure relief valve

Vitodens 200-W WB2B boiler with Vitotronic 200, HO1 outdoor reset control Outdoor temperature sensor Remote control Vitotrol 300 (optional) Under floor heating circuit Radiator heating circuit Heating circuit pump Mixing valve temperature sensor Accessory kit for heating circuit with mixing valve Domestic hot water storage tank DHW tank temperature sensor Expansion tank Optional purge tee (field supplied) DHW supply and return piping DHW recirculation pump sK

O Power/Pump module P Boiler pump sÖ Q DHW circulating pump sA R Flow check valve

PRV

Installation of different heating circuits...

H radiator heating circuit (high-temp. circuit) H under floor heating circuit with 3-way

mixing valve (low-temp. circuit) H DHW production ... with the following flow conditions:

1. The water flow rate (output) of the radiator heating circuit is at least 30% greater than that of the under floor heating circuit.

2. The total flow rate of the two heating circuits is less than the maximum possible water flow rate of the Vitodens 200-W WB2B boiler (see page 10 for max. water flow rate). The use of a low-loss header is strongly recommended if the maximum water flow rate in the application concerned exceeds the values shown on page 11, or if the system flow rates are unknown. The low-loss header is available as accessory part.

See following pages for additional installation examples with a low-loss header.

The 3-way mixing valve, built-in to achieve the low-temperature level of the under floor heating circuit, is controlled by an accessory

kit for a heating circuit with mixing valve.

IMPORTANT

DHW circulating pump Q must pump into the Vitodens 200-W WB2B boiler (as illustrated).

Page 33

System Layout 5

Vitodens 200-W, WB2B with...

– DHW storage tank – one heating circuit with mixing valve – one heating circuit without mixing valve and low-loss header

Installation Examples

TPV

Fig. 48

Legend AV Air vent (WB2B models 19 to 60 only) PRV Pressure relief valve TPV Temperature and pressure relief valve

Heating circuit pump Mixing valve temperature sensor Kit for heating circuit with mixing valve Domestic hot water storage tank DHW tank temperature sensor Expansion tank Optional purge tee (field supplied) DHW supply and return piping DHW circulating pump sK

20A

PRV

Q DHW circulating pump sA R Low-loss header S Viessmann temperature sensor for

low-loss header

T Flow check valve

Installation of different heating circuits...

H radiator heating circuit (high-temp. circuit) H under floor heating circuit with 3-way

mixing valve (low-temp. circuit) H DHW production ... with the following flow conditions: The total flow rate of the two heating circuits is greater than the maximum possible water flow rate of the Vitodens 200-W WB2B boiler (see page 11 for maximum water flow rate of boiler). The use of a low-loss header is strongly recommended. The low-loss header is available as accessory part.

The 3-way mixing valve, built-in to achieve the low-temperature level of the under floor heating circuit, is controlled by an accessory kit for a heating circuit with mixing valve.

IMPORTANT

Please note location of expansion tank and flow check valve T.

IMPORTANT

DHW circulating pump Q must pump into the Vitodens 200-W WB2B boiler (as illustrated).

Page 34

Installation Examples

System Layout 6

Vitodens 200-W, WB2B with...

– DHW storage tank – two heating circuits with a mixing valve and low-loss header

TPV

PRV

T R

Fig. 49

Legend AV Air vent (WB2B models 19 to 60 only) PRV Pressure relief valve TPV Temperature and pressure relief valve

Vitodens 200-W WB2B boiler with Vitotronic 200, HO1 outdoor reset control Outdoor temperature sensor Remote control Vitotrol 300 (optional) Under floor heating circuit Heating circuit pumps Mixing valve temperature sensor Accessory kit for heating circuit with mixing valve Vitotronic 200-H, HK1M with LON communication module DHW storage tank DHW tank temperature sensor Expansion tank Optional purge tee (field supplied) for easier air removal Low-loss header Viessmann temperature sensor for low-loss header

O DHW supply and return piping P DHW circulating pump sK Q Power/Pump Module R Boiler pump sÖ

S DHW circulating pump sA T Flow check valve

Installation of different heating circuits...

H two heating circuits with 3-way mixing

valve (low-temp. circuit) H DHW production ... with the following flow conditions: The total flow rate of the two heating circuits is greater than the maximum possible water flow rate of the Vitodens 200-W WB2B boiler (see page 11 for maximum water flow rate of boiler). The use of a low-loss header is strongly recommended. The low-loss header is available as accessory part.

The 3-way mixing valve, built-in to achieve the low-temperature level of the under floor heating circuit, is controlled by an accessory kit for a heating circuit with mixing valve

. The second under floor heating circuit is supplied by a field supplied circulation controlled by an accessory kit or a Vitotronic 200-H, HK1M mixing valve

control . If more than two heating circuits with mixing valves are to be connected, they can be controlled by a Vitocontrol multi-boiler control. Contact your local Viessmann Technical Sales Representative for details.

Requires...

LON communication module 200-H HK1M

- Boiler LON communication module

- LON cable

- End resistors

IMPORTANT

Please note location of expansion tank and flow check valve T.

IMPORTANT

DHW circulating pump S must pump into the Vitodens 200-W WB2B boiler (as illustrated).

Page 35

System Layout 7

Vitodens 200-W, WB2B with...

– direct-connected heating circuit – one heating circuit with system separation

TPV

PRV

Installation Examples

Fig. 50

Legend

AV Air vent (WB2B models 19 to 60 only) PRV Pressure relief valve TPV Temperature and pressure relief valve

Vitodens 200-W WB2B boiler with Vitotronic 200, HO1 outdoor reset control Outdoor temperature sensor Remote control Vitotrol 300 (optional) Under floor heating circuit Heating circuit pump Plate heat exchanger for system separation Heating circuit pump Mixing valve temperature sensor Accessory kit for heating circuit with mixing valve DHW storage tank DHW tank temperature sensor Expansion tanks Optional purge tee (field supplied) DHW supply and return piping

O DHW recirculation pump sK P Boiler pump sÖ Q DHW circulating pump sA R Power/pump module S Flow check valve

Installation of different heating circuits...

H radiator heating circuit (high-temp. circuit) H under floor heating circuit with 3-way

mixing valve (low-temp. circuit) H DHW production ... with the following flow conditions: The total flow rate of the two heating circuits is less than the maximum possible water flow rate of the Vitodens 200-W WB2B boiler (see page 11 for maximum water flow rate of boiler). The use of a low-loss header is strongly recommended if the maximum water flow rate in the application concerned exceeds the max. boiler flow rate, or if the system flow rates are unknown. The low-loss header is available as accessory part.

The 3-way mixing valve, built-in to achieve the low-temperature level of the under floor heating circuit, is controlled by an accessory kit for a heating circuit with mixing valve

. The boiler pump sÖ supplies the

radiator heating circuit and the plate heat exchanger for system separation.

IMPORTANT

The pressure drop (secondary circuit) of the plate heat exchanger must be less/equal to the pressure drop of the 3-way mixing valve. This must be taken into account when sizing the plate heat exchanger.

IMPORTANT

DHW circulating pump Q must pump into the Vitodens 200-W WB2B boiler (as illustrated).

Page 36

Installation Examples

System Layout 8

Vitodens 200-W, WB2B with...

– DHW storage tank – low-loss header – multiple heating circuits with mixing valves

PRV

TPV

H H H

2 2

E E E

F F

Fig. 51

When designing a system as illustrated above, please contact your local Viessmann Sales Representative for assistance.

Legend AV Air vent (WB2B models 19 to 60 only) PRV Pressure relief valve TPV Temperature and pressure relief valve

Vitodens 200-W WB2B boiler with Vitotronic 200, HO1 outdoor reset control Outdoor temperature Boiler pump sÖ Vitocontrol or Vitotronic 200-H,

HK1S Mixing valve temperature sensor Heating circuit pumps Accessory kit for heating circuit with mixing valve Heating circuits with mixing valves Viessmann temperature sensor for low-loss header Low-loss header DHW circulating pump sA DHW tank temperature sensor

Q Flow check valve

DHW storage tank Expansion tank DHW recirculation pump sK Power/Pump module

Contact your local Sales Representative

for details.

Vitotronic 200-H, HK1M mixing valve control with LON communication module can be used instead of the accessory kit and Vitocontrol.

IMPORTANT

Please note location of expansion tank and flow check valve Q.

IMPORTANT

Pumps and must pump into the Vitodens 200-W WB2B boiler (as illustrated).

Page 37

System Layout 9

Multiple (up to four) Vitodens 200-W, models WB2B 45 to 105 with...

– multiple heating circuits with mixing valves – low-loss header

Vitocontrol-S

Installation Examples

Boiler 1 Boiler 2

PRV

TPV

DHW Tank

Fig. 52

When designing a multiple Vitodens system as shown above, please reference applicable multiple Vitodens technical documentation, and contact your local Viessmann Sales Representative for further assistance.

PRV

Boiler 3 Boiler 4

PRV

Common

Supply Temperature Sensor

Low-Loss Header

IMPORTANT

This installation example depicts a possible piping layout for multiple Vitodens 200-W, WB2B boilers equipped with Viessmann System Technology. Please note that this example is based on a simplified conceptual drawing only! Piping and necessary componentry must be field verified. A low water cut-off (LWCO) must be installed where required by local codes. Proper installation and functionality in the field is the responsibility of the heating

contractor.

WARNING

Page 38

Installation Examples

The following piping diagram reflects an alternative connection for the DHW tank only and applies to system layouts 2, 5, 6 and 8. The boiler control pump logic function must be programmed in the Start-up/Service Instructions.

TPV

Fig. 53

PRV

Alternative location of the expansion tank

*Note:

When using a low loss header in the system, the DHW connections can be made downstream of the low loss header. See Vitodens 200-W WB2B Start-up/Service Instructions for applicable system coding information (see coding level 2): 00: ... A2: ... 5b: ...

Page 39

Overview of Electrical Connections, Models WB2B 19, 26, 35, 45 and 60

Wiring Diagram

MAIN POWER SUPPLY

120V,60HZ, 12A

L2 L1 P1 P2

--TYPICAL

SAFETY DEVICE

LOW WATER CUT--OFF

LON

MAIN DISCONNECT SWITCH

120VAC WALL RECEPTACLE

120/230 Transformer

Vitotronic 050

HK1M

Power/Pump module

L1 G N

M M

120VAC

DHW

SYSTEM

PUMP

145 145

1 20 40

202120A40

202120A

120VAC

BOILER

PUMP

31 2

143

NLNLNL

120VAC

FAULT

ALARM

OUTPUT

145

1 2 3 1 2 3 1 2 3

L G N

120VAC

DHW

RE--CIRC.

PUMP

EXTERNAL

DEMAND

144

-- +

EXTERNAL

SIGNAL

0--10V

31 2

145

145144143

230 VAC

LON

KMK1KMK2

Fig. 54

Legend

! Outdoor Temperature Sensor ? Flow Temp. Sensor/Low-Loss

Header

% DHW Temperature Sensor sÖ Boiler Pump

20A

System Pump

sA DHW Pump sK DHW Recirculation Pump fÖ Power Suppl

LON

X 7

4321

X 8

X9.3

X9.4

X 9

X11 LON KMK

Boiler Control Board GC130

gÖ Fault Alarm Output aVD External Blocking Terminals 2-3

External Demand Terminals 1-2 External Heating Program Changeover Terminals 1-2 (Allocation of this function is set via Coding Address 91.)

aVF External 0-10 V Signal

1234567

40962035100

L Low water cut-off (field supplied) M Power/Pump Module

A1 Main PCB (GC130 Ignition Module) A6 Coding Card A7 Connection Adaptor A8 LON/Cascade Communication

Module(Accessory)

X Electrical Interfaces

aVG KM BUS to Power/Pump Module /

Accessories

Page 40

Wiring Diagram

Overview of Electrical Connections, Models WB2B 80 and 105

MAIN POWER SUPPLY

L2 L1 P1 P2

--TYPICAL

SAFETY DEVICE

LOW WATER CUT--OFF

120V,60HZ, 12A

LON

MAIN DISCONNECT SWITCH

120VAC WALL RECEPTACLE

120/230 Transformer

Vitotronic 200--H

HK1M

Power/Pump module

L1 G N

M M

120VAC

DHW

SYSTEM

PUMP

145 145

1 20 40

202120A40

202120A

120VAC

BOILER

PUMP

31 2

143

NLNLNL

145

120VAC

FAULT ALARM OUTPUT

1 2 3 1 2 3 1 2 3

L G N

120VAC

DHW

RE--CIRC.

PUMP

EXTERNAL

DEMAND

144

-- +

EXTERNAL

SIGNAL

0--10V

31 2

145

145144143

230 VAC

LON

KMK1KMK2

432

X 7

Fig. 55

Legend

! Outdoor Temperature Sensor ? Flow Temp. Sensor/Low-Loss Header % DHW Temperature Sensor sÖ Boiler Pump

20A

System Pump

sA DHW Pump sK DHW Recirculation Pump fÖ Power Supply

X8.10

X8.11

X 8

X 9

X11

LON

KMK

Boiler Control Board GC131

gÖ Fault Alarm Output aVD External Blocking Terminals 2-3

External Demand Terminals 1-2 External Heating Program Changeover Terminals 1-2 (Allocation of this function is set via Coding Address 91.)

aVF External 0-10 V Signal aVG KM BUS to Power/Pump Module /

Accessories

1234567

40962035100

L Low water cut-off (field supplied) M Power/Pump Module

A1 Main PCB (GC131 Ignition Module) A6 Coding Card A7 Connection Adaptor A8 LON/Cascade Communication

Module (Accessory)

X Electrical Interfaces

Page 41

System Design Considerations

IN THE COMMONWEALTH OF MASSACHUSETTS...

-this product shall be installed by a licensed plumber or gas fitter.

-the flexible connector (if used) cannot exceed 36”.

-any level type shutoff used must be of tee handle type.

Installation Examples

Boiler location

As a direct vent appliance, the Vitodens 200-W can be installed for room air independent operation (sealed combustion) regardless of size and ventilation method of the room in which it is located. The Vitodens 200-W can be installed, for example, in the main living area of a house, in non-ventilated utility rooms, cupboards, closets and alcoves with no clearance required from combustible materials, as well as in attics with a direct outlet for the flue gas/fresh air system. Follow all local and national codes.

Flue gas system

Viessmann PPS (Polypropylene) concentric flue gas/fresh air systems for room air independent operation (sealed combustion) and side wall venting are tested to ANSI Z21.13 - CSA 4.9 - 2000 standards and are certified together with the Vitodens 200-W boiler as a constructional unit. The Vitodens 200-W boiler may also be vented vertically, using an AL29-4C® special stainless steel, single-wall, room air dependent venting system (UL listed for category IV). For a more detailed description of the direct vent and single-wall vent system, please refer to the Vitodens 200-W Venting System Installation Instructions.

Flue gas temperature protection

Flue pipes used for the Vitodens 200-W are suitable for max. flue gas temperatures of up to 230°F / 110°C.

No flue gas temperature protection is required as the maximum permissible flue gas temperature is not exceeded in any operating condition or in the event of malfunctioning.

Low water cut-off

A low water cut-off may be required by local codes. If the boiler is installed above the radiation level, a low water cut-off device of approved type must be installed in all instances. An approved type low water cut-off device must be provided by the heating contractor. Do not install an isolation valve between the boiler and the low water cut-off.

System layout

H The max. boiler water temperature for

space heating and DHW production is –165°F / 74°C for models WB2B 19 to 60 or –176°F / 80°C for models WB2B 80 and105. To minimize distribution losses, Viessmann recommends that the heating and domestic hot water systems be based on a maximum boiler supply temperature of 158°F / 70°C.

H Due to the low return temperatures

required for gas condensing, no mixing valves should be used in the heating circuit whenever possible. If mixing valves are required, e.g. for multi-circuit systems or underfloor heating systems, only 3-way mixing valves must be used.

Do not use 4-way mixing valves with condensing boilers.

Water connections

Vitodens 200-W boilers can be used in any fully pumped hot water heating system. Minimum system pressure is 0.8 bar/12 psig.

Chemical corrosion protection products

Corrosion does not typically occur in sealed heating systems which have been correctly installed and are correctly operated. Many manufacturers of plastic pipes recommend the use of chemical additives. In this case, only those commercially available corrosion protection products approved for boilers with domestic hot water heating via single-wall heat exchangers (instantaneous plate heat exchangers or DHW tanks) must be used.

Underfloor heating systems

For underfloor heating systems Viessmann recommends the use of plastic tubing with an oxygen diffusion barrier in order to prevent the diffusion of oxygen through tubing. If plastic tubing without an oxygen diffusion barrier is used in underfloor heating systems, Viessmann recommends that such systems be separated from the boiler with a heat exchanger.

Underfloor heating systems and heating circuits containing a very large volume of water must be connected to the boiler via a 3-way mixing valve; please refer to the applicable installation example in this manual.

Oxygen diffusion barrier underfloor tubing

The boiler warranty does not cover leaks resulting from corrosion caused by the use of underfloor plastic tubing without an oxygen diffusion barrier. Such systems must have the non-oxygen diffusion barrier tubing separated from the boiler with a heat exchanger. Viessmann recommends the use of underfloor plastic tubing with an oxygen

diffusion barrier.

Water quality

Treatment for boiler feed water should be considered in areas of known problems, such as where a high mineral content and hardness exist. In areas where freezing might occur, an antifreeze may be added to the system water to protect the system. Please adhere to the specifications given by the antifreeze manufacturer. Do not use automotive silicate based antifreeze. Please observe that an antifreeze/water mixture may require a backflow preventer within the automatic water feed and influence components such as diaphragm expansion tanks, radiation, etc. Maximum antifreeze content is 50% for the Vitodens 200-W boiler. Do not use antifreeze other than specifically made for hot water heating systems. System also may contain components which might be negatively affected by antifreeze. Check total system frequently when filled with antifreeze. Advise system operator/ultimate owner that system is filled with a glycol mix. The heating contractor must provide a MSDS (Material Safety Data Sheet) for the antifreeze used to the system operator/ultimate owner.

Warranty

Our warranty does not cover damages resulting from the following: – installation or service by unqualified and

unlicensed personnel.

– attempting to perform any repair work on

the boiler other than that mentioned in the boiler literature.

– tampering with or attempting, without

Viessmann permission, to readjust the factory settings of the

–combination gas valve –combustion air opening of the

burner blower Leaks resulting from corrosion caused by the use of underfloor plastic tubing without an oxygen diffusion barrier.For detailed warranty information, please read warranty sheet supplied with product.

Page 42

5369295v1.5

Page 43

5369295v1.5

Page 44

5369295v1.5

Technical information subject to change without notic

Printed on environmentally friendly (recycled and recyclable) paper.

Viessmann Vitodens 200-W WB2B Series, Vitodens 200-W, WB2B-19, WB2B-26, WB2B-35 Technical Data Manual

Specifications and Main Features

Frequently Asked Questions

User Manual