Viessmann Vitodens 100-W Gebrauchsanweisung

VITODENS 100-W

Natural gas-fired wall-mounted condensing boiler

29 to 100 MBH/8.5 to 29.3 kW

Vitodens 100-W

WB1A Series

Natural Gas-Fired Wall-Mounted Condensing Boiler

with modulating stainless steel natural gas cylinder

burner and stainless steel Inox-Radial heat exchanger

for room air independent operation

(using a direct vent system) and room

air dependent operation

Technical Data Manual

Model Nos. and pricing: see Price List

For Natural Gas only!

Vitodens 100-W, WB1A

(with preinstalled coaxial vent pipe

adaptor)

5347 963 v1.1 10/2007

Product Information

VITODENS 100-W

Equipped with a Viessmann stainless steel

heat exchanger for lasting performance and

reliability and a modulating natural gas

cylinder burner, the Vitodens 100-W

wall-mounted condensing boiler is the perfect

combination of value, quality and Viessmann

technology.

The benefits at a glance:

HOutstanding efficiency of 95.1% A.F.U.E.

on all models.

HLasting performance

with Viessmann-made SA240 316Ti

stainless steel Inox-Radial heat exchanger

constructedtoASMESectionIVandCSA

B51.

HLow-emission combustion

with fully-modulating natural gas stainless

steel cylinder burner. Factory calibration

eliminates adjustments in the field.

< 29 ppm NOx(at 3% O2)

<40ppmCO(at3%O

HControl variety

Integrated boiler control interfaces with

any level of external control - from room

thermostat to outdoor reset and more.

HCompact, lightweight design

and zero clearance to combustibles make

it a great choice for limited-space

installations.

HExtremely quiet operation;

quieter than most refrigerators.

HEasy installation, service and maintenance

with all pipe connections located at the

bottom and serviceable components easily

accessible from the front.

HMultiple venting options

- Horizontal or vertical sealed combustion

coaxial vent system (factory supplied).

- Horizontal, vertical or hybrid sealed

combustion double-pipe vent system

(field supplied).

- Horizontal or vertical single-wall vent

system (field supplied).

HSuitable for altitude levels

of up to 5000 ft. / 1500 m without

deration.

HBuilt-in automatic frost protection

allows boiler to be shut off for an

extended period of time while protecting it

against freeze-up.

HLimited lifetime warranty

in residential applications.

5347 963 v1.1

Product Information

Cross-Section

Product may not look exactly as illustrated.

Legend

Stainless steel cylinder burner

Inox-Radial stainless steel heat

exchanger

Burner blower

Natural gas and hydronic connections

Boiler control

5347 963 v1.1

Vitodens 100-W

Technical Data

Standard heating boiler

Boiler Model Model No. WB1A 8-24 WB1A 8-30

Natural gas

CSA input

CSA output/DOE*1

heating capacity

MBH

29-80

8.5-23.4

26-72

7.6-21

29-100

8.5-29.3

26-90

7.6-26.4

Net I=B=R rating*2 MBH 63 78

Heat exchanger surface area ft.2

9.26

0.86

9.26

0.86

Min. gas supply pressure

Natural gas “w.c. 4 4

Max. gas supply pressure*3

Natural gas “w.c. 14 14

A.F.U.E. %95.1 95.1

Weight lbs

Boiler water content USG

ltr

0.82

3.1

0.82

3.1

Boiler max. flow rate*4 GPM

ltr/h

6.2

1400

6.2

1400

Max. operating pressure

at 210 ºF/99 ºC

psig

bar

Boiler water temperature

– Adjustable high limit (AHL)

range

space heating

(steady state)

DHW production (set

point)

– Fixed high limit (FHL)

ºF/

ºC

ºF/

ºC

ºF/ºC

68 to 176/

20 to 80

172/

210/99

Boiler connections

Boiler heating supply and return NPTM (male) “

Pressure relief valve NPTF (female) “

Drain valve (male thread)

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

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

*3 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.

*4 See “Typical System Flow Rates” on page 9 in this manual.

5347 963 v1.1

Vitodens 100-W

Standard heating boiler

Boiler Model Model No. WB1A 8-24 WB1A 8-30

Dimensions

Overall depth

Overall width

Overall height

inches

13.4

340

15.7

400

27.6

700

13.4

340

15.7

400

27.6

700

Gas supply connection NPTF “ ¾ ¾

Flue gas*5

Temperature (at boiler return

temperature of 86 ºF/30 ºC)

– at rated full load

– at rated partial load

Temperature (at boiler return

temperature of 140 ºF/60 ºC)

ºF/ºC

127/53

90/32

167/75

131/55

90/32

172/78

Flue gas value

Mass flow rate (of flue gas)

– at rated full load

– at rated partial load

Available draught

lbs/h

kg/h

lbs/h

kg/h

mbar

79.2

36.0

33.0

15.0

100

1.0

100.1

45.5

33.0

15.0

100

1.0

Average condensate

flow rate*6

with natural gas

–T

S/TR=122/86ºF/50/30 ºC USG/day

ltr/day

1.8-2.1

7-8

2.1-2.4

8-9

Condensate connection*7 hose

nozzle

∅in 1 1

Boiler flue gas connection*8 ∅

in/mm 23/8/60 23/8/60

Combustion air supply

connection*8

outer

∅in/mm 4/100 4/100

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

*6 Based on typical boiler cycles, including partial load conditions.

*7 Requires 1”/25 mm tubing. See Vitodens 100-W Installation Instructions for details.

*8 For an overview of venting options refer to the appendix starting on page 19. For detailed information refer to the Vitodens Venting

System Installation Instructions (PN 5285 268).

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

5347 963 v1.1

Vitodens 100-W

Vitodens 100-W, WB1A 24/30

without piping connections

Connections Vitodens 100-W,

WB1A 8-24, 8-30

Legend

Boiler water supply, NPT ¾”

Condensate drain, plastic hose

Ø 0.87” / 22mm

Gas connection, NPT ¾”

Boiler water return, NPT ¾”

a 7” / 180 mm

b 15¾” / 400 mm

c 2¼” / 58 mm

d27

9/16” / 700 mm

7/8” / 123 mm

f 7¼” / 183 mm

g13

3/8” / 340 mm

h 5” / 125 mm

Vitodens 100-W, WB1A

side view

5347 963 v1.1

Vitodens 100-W

Vitodens 100-W, WB1A 24/30

with piping connections

Piping connections for Vitodens

100-W, WB1A 8-24 and 8-30 (factory

supplied)

Legend

BWR Boiler water return, ¾”

BWS Boiler water supply, ¾”

BD Boiler drain

BF Boiler fill

GC Gas connection, ¾” NPTM

PRV Pressure relif valve

NPT National Pipe Thread

PG Pressure gauge

5347 963 v1.1

14” /

355mm

15¾” /

400mm

27/8” / 73mm

53/8” / 137mm

27½” / 700mm

33” / 838mm 12” / 300mm

2¼” /

58mm

6” /

152mm 47/8”/

123mm

47/8”/

123mm

PRV

NPT

BWS

BWR

Vitodens 100-W/Technical Data

Recommended Minimum Service Clearances Minimum Clearances to Combustibles

Top Front Rear Left Right Vent pipe*1

00AL,CL 0 0 0 0

AL = Alcove

CL = Closet

*1Refer to the Installation Instructions of the Vitodens

Venting System for details.

Note:

The Vitodens 100-W boiler has passed the

zero inches vent clearance to combustibles

testing requirements provided by the boiler

Harmonized Standard ANSI Z21.13. CSA

4.9.2005 and therefore is listed for zero

clearance to combustibles when vented

with a single wall special venting system

(AL-29-4C material) or UL/ULC-listed CPVC

gas vent material. The zero inches vent

clearance to combustibles for the Vitodens

100-W boiler supercedes the clearance to

combustibles listing that appears on the

special venting system label.

5347 963 v1.1

Front

12”/305 mm

Top

12”/305 mm

0”/mm

28”/700 mm

Side

0”/mm

Back

Side

12”/300 mm*

4”/100 mm

28”/

700 mm

¼”/5 mm ¼”/5 mm¼”/5 mm

Technical Data/Heating Circuit Pumps

Pressure drop for model WB1A 8-24, 8-30

3.3

6.6

9.8

13.1

16.4

19.7

Supply head pressure

ft.

02.2 4.4 6.6 8.8 11 13.2

Flow rate

15.41.1

0 500 1000 1500 2000 2500 3000 3500250 ltr/h

GPM

Waterside Flow (primary circuit)

The Vitodens 100-W is designed only for closed loop, forced

circulation hot water heating systems.

Pressure drop (primary circuit) of Vitodens 100-W

Typical System Flow Rates

Model WB1A 8-24 8-30

∆tforNG

Output (NG) Btu/h 72 000 90 000

20 ºF rise (GPM) 7.2 9.0

25 ºF rise (GPM) 5.8 7.2

30 ºF rise (GPM) 4.8 6.0

35 ºF rise (GPM) 4.1 5.1

40 ºF rise (GPM) 3.6 4.5

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 on page 13) or if system flow rate is unknown, Viessmann strongly

recommends the installation of a low-loss header. See page 13 for low-loss header information.

Heating Circuit Pumps

Recommended heating pumps with Vitodens 100-W, WB1A 824, 8-30:

HGrundfos UP 26-64F

HGrundfos 15-58 (3-speed)

HTaco 0010

HWilo Star 21

or equivalent

Refer to the graph above for the proper

waterside boiler friction loss calculations.

Pump selection must be based on accurate

system flow and pressure drop calculations

(incl. DHW sizing).

5347 963 v1.1

A low-loss header must be used when the system flow

rate exceeds the maximum or falls below the minimum

flow rate of the Vitodens 100-W boiler. 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 strongly

recommends and prefers the use of a low-loss header

over closely spaced tees.

Please see page 13 for details.

IMPORTANT

DHW Production/Wall Mounting

Domestic Hot Water Production via DHW Storage Tank

Vitodens 100-W boilers can be used in

conjunction with the stand-alone DHW

storage tanks offered by Viessmann (a

separate DHW controller should be field

supplied).

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 forecast DHW consumption of the

building in question.

For further technical information on DHW

storage tanks, see the Vitocell-V Technical

Data Manuals.

Wall Mounting Information

The Vitodens 100-W (model WB1A 8-24 and

8-30) 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 (Viessmann

coaxial PPS vent system only).

The connection to the heating circuits

(installation fittings are supplied in the

Installation Fittings package supplied with

the boiler) must be made on site.

Legend

Mounting template

5347 963 v1.1

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