Viessmann CombiPLUS Kit, Vitodens 100-W, WB1B Technical Manual

Technical Data Manual

Model Nos. and pricing: see Price List

Vitodens 100-W
WB1B Series

Wall-Mounted, gas-fired condensing boiler
with optional on demand hot water CombiPLUS Kit

Heating input: 37 to 118 MBH

10.8 to 34.5 kW

VITODENS 100-W

Vitodens 100-W, WB1B
(with pre-installed coaxial vent pipe adaptor)

Gas-Fired Wall-Mounted Condensing Boiler with modulating
stainless steel MatriX cylinder burner, stainless steel Inox­Radial heat exchanger for room air independent operation
(using a direct vent system) or room air dependent operation.
Optional CombiPLUS Kit providing reliable on demand hot
water without a DHW tank is available.

H

5601 189 - 01 03/2014

CombiPLUS Kit

General

Product Information

Vitodens 100-W, WB1B Technical Data

Equipped with a Viessmann stainless steel heat exchanger
for lasting performance and reliability and a modulating
MatriX cylinder gas burner, the Vitodens 100-W wall­mounted condensing boiler is the perfect combination of
value, quality and Viessmann technology.

The benefits at a glance:

Outstanding efficiency

of 94.0 % A.F.U.E. on all models.

Lasting performance

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

Low-emission

with fully-modulating stainless steel MatriX cylinder
burner. Factory calibration eliminates adjustments in
the field.
< 29 ppm NOx (at 3% O2)
< 40 ppm CO (at 3% O2)

Control variety

Integrated boiler control interfaces with any level of
external control - from room thermostat to outdoor
reset and more.

Compact, lightweight wall mount design

and zero clearance to combustibles make it a great
choice for limited-space installations.

Extremely quiet operation

quieter than most refrigerators.
< 50 dBA [at 3.3 ft. (1 meter)]

Multiple venting options

- Horizontal or vertical sealed combustion
coaxial, PP(s) vent system (Viessmann supplied).

- Horizontal, vertical or hybrid sealed combustion
double-pipe CPVC vent system (field supplied).

- Horizontal or vertical single pipe CPVC vent system
(field supplied).

- Horizontal or vertical single or double pipe PP(s),
flexible vent system (Viessmann supplied).

Suitable for high altitude levels

of up to 10,000 ft. (3,000 m) without deration.

Built-in automatic frost protection

allows boiler to be shut off for an extended period
of time while protecting it against freeze-up.

Reliable on demand hot water

with an optional CombiPLUS kit (no DHW tank required).

- Plate type heat exchanger

- Built-in diverting valve

- Built-in Grundfos 3-speed pump

- Built-in pressure bypass valve

- Built-in water hammer arrester

- Built-in flow sensor

- Built-in temperature sensor

- Supplied with a pressure relief valve rated at 150 psi

Note: Check the boiler rating plate on the Vitodens 100-W,
models WB1B-26 or WB1B-35 to ensure it states
compatibility with the CombiPLUS kit.

Limited lifetime warranty

in residential applications.

Easy installation, service and maintenance

with all pipe connections located at the bottom
and serviceable components (including electrical
connections) easily accessible from the front.

2

Certified to CSA Low Lead Content Certification Program;
including US Safe Drinking Water Act, NSF/ANSI 372
as well as other applicable US State requirements.

5601 189 - 01

Vitodens 100-W, WB1B Technical Data

Product Information

General

Boiler cross-section

Legend

A Stainless steel MatriX cylinder burner

B Inox-Radial stainless steel heat exchanger
C Burner blower
D Gas and hydronic connections
E Boiler control

Standard Equipment:

Wall-mount boiler and installation fittings c/w 30 psi
pressure relief valve, pressure gage, gas shut-off valve,
two fill/drain valves, all mounting hardware, outdoor
temperature sensor, and LP conversion kit.

H

JI

Note: Products may not look exactly as illustrated.

5601 189 - 01

GF

CombiPLUS cross-section

Legend

F Plate-type heat exchanger
G Boiler / DHW pump
H Flow sensor
I Pressure by-pass valve
J Diverting valve

3

Technical Data

Vitodens 100-W, WB1B Technical Data

Specifications

Standard heating boiler

Boiler Model No. WB1B 26 WB1B 35

Natural gas and LPG
CSA input

CSA output/DOE

1

heating capacity
Net I=B=R rating 2

Heat exchanger surface area

Min. gas supply pressure

Natural gas
LPG

Max. gas supply pressure

3

Natural gas and LPG “w.c. 14 14

A.F.U.E. % 94.0 94.0

Weight

Shipping weight

Boiler water content

Boiler max. flow rate

4

USG

Max. operating pressure

(max. allowable working pressure)
at 210º F (99º C)

Boiler water temperature

- Adjustable high limit (AHL) range

- space heating (steady state)

- DHW production (set-point)

MBH

kW

MBH

kW

MBH

ft.

m

“w.c.
“w.c.

lbs

kg

lbs

kg

GPM

L/hr.

psig

bar

ºF (ºC)
ºF (ºC)

37-91

10.8-26.7
34-83

9.9-24.3

37-118

10.8-34.6
34-108

9.9-31.6

72

2
2

10.23

0.95

10.23

0.95

4

10

78

34.1

34.1

95
43

0.87

L

3.3

0.87

6.2

1400

1400

45

3

86 to 176 (30 to 80)

176 (80)

94

4

10

78

95
43

3.3

6.2

45

3

- Fixed high limit (FHL)

Boiler connections

Boiler heating supply and return
Pressure relief valve
Drain valve

NPTM (male) “

NPTF (female) “

(male thread) “

ºF (ºC)

Dimensions

Overall depth

inches

mm

Overall width

inches

15 c

mm

Overall height

inches

28 b

mm

1

Output based on 140º F (60º C), 120º F (49º C) 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 “System Flow Rates” on pages 20 to 25 in this manual.

4

210 (99)

c“
c“
c“

14d

360

400

725

c“
c“
c“

14d

360

15 c

400

28b

725

5601 189 - 01

Vitodens 100-W, WB1B Technical Data

Specifications (continued)

Technical Data

Standard heating boiler

(continued)

Boiler Model No. WB1B 26 WB1B 35
Gas supply connection

Flue gas

5

NPTF

(female)”

cc

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

- at rated full load

- at rated partial load

ºF (ºC)
ºF (ºC)

127 (53)

90 (32)

131 (55)

90 (32)
Temperature at boiler
return temperature of 140º F (60º C)

ºF (ºC)

167 (75)

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

Pa

mbar

79.2

36.0

33.0

15.0

100

1.0

100.1

45.5

33.0

15.0

100

Flue gas temperature
sensor limit ºF (ºC) 230 (110) 230 (110)

Average condensate
flow rate

6

with natural gas

- TS/TR =122 / 86º F (50 / 30º C) USG/day

L/day

Condensate
connection

7

hose

nozzle

1.95-2.3
8-9

2.5-2.8

9.4-10.5

Ø in 1 1

Boiler flue gas
connection

8

Combustion air supply coaxial
connection

8 single

outer Ø in (mm) 4 (100)

Ø

in (mm) 2e (60) 2e (60)

4 (100)

2e (60)

2e (60)

Noise level (at 1 meter)

- at full load

- at partial load
High altitude (factory set)

9

(dB)
(dB)

47
40

ft. (m) 0-5,000 (0-1,500) 0-5,000 (0-1,500)

1.0

49
42

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 detailed information refer to the Vitodens Venting System Installation Instructions.

9

For 5,000 to 10,000 ft. (1,500 to 3,048 m) operation, a control programming change is required.

Refer to the Installation and Service Instructions for details.
For information regarding other Viessmann System Technology componentry,

please reference documentation of respective product.

5601 189 - 01

5

Technical Data

Vitodens 100-W, WB1B Technical Data

Specifications (continued)

CombiPLUS (Integrated with the Boiler)

Boiler Model No. WB1B 26 WB1B 35

DHW supply temperature ºF (ºC) 140 (60) 140 (60)

Continuous draw rate

with DCW temp. of 56º F (13º C)

Continuous draw rate

at  t= 63º F (35K)

Maximum allowable working
pressure (potable water) psi 150 150

Test pressure psi 300 300

Connections, DHW and DCW NPTM (male) “

Connections to boiler supply/return
and to heating supply/return

Dimensions

Overall depth

Overall width

Overall height

Height with pipe connector

Integrated pump flow rate
DHW production @ 23 ft. (9.8 m)
Head pressure

Heating system operation
with system side additional
drop in pressure of max. 6 ft. of
water (1.8 m)

Weight lbs

1

2

NPTM (male) “

USG/h

L/h

USG/h

L/h

inches

mm

inches

mm

inches

mm

inches

mm

USG/min.

L/h

USG/min.

L/h

kg

99

374

156
589

b“ b“

c“ c“

9.8

250

17

432

8.7

223

13

331

5.63

1278

6.2

1408

25
11

5.63

1278

1408

147
556

216
800

9.8

250

17

432

8.7

223

13

331

6.2

25
11

1

Based on boiler max. output and boiler supply temperature of 176º F (80º C).

2

DCW and DHW temperature rise would be proportional. Maximum DHW supply temperature is 140º F (60º C).

6

5601 189 - 01

Vitodens 100-W, WB1B Technical Data

Boiler Dimensions Without Bottom Piping Connections

Dimensions

Front view Side view Top view

Connections Vitodens 100-W, WB1B 26, 35

Legend
Connections

A Condensate drain, plastic hose Ø 0.87” (22 mm)
B Boiler water supply, NPT ¾” (male thread)
C Gas connection, NPT ¾” (male thread)
D Boiler water return, NPT ¾” (male thread)
E Combustion air opening for double pipe system
F Combustion air opening for coaxial system

Note: If using the optional CombiPLUS see page 9.

Dimensions

a See illustration for dimensions
b 15¾” (400 mm)
c 2f” (68 mm)
d 28½” (725 mm)

7

/8” (123 mm)

e 4
f 6d” (156 mm)
g 14d” (360 mm)
h 5” (125 mm)
j 12” (305 mm)
k 1a” (31 mm)

7

/8” (200 mm)

m 7
n 3d” (80 mm)

5601 189 - 01

7

Dimensions

Boiler Dimensions With Piping Connections

Piping connections for Vitodens 100-W,
WB1B 26 and 35 (factory supplied)

Vitodens 100-W, WB1B Technical Data

Note: If using the optional CombiPLUS see page 9.

Legend

BWR Boiler water return, ¾”
BWS Boiler water supply, ¾”
BD Boiler drain
BF Boiler fill
GC Gas connection, ¾” NPTM (male thread)
PRV Pressure relief valve
PG Pressure gage
VC Venting connection
CAI Combustion air inlet connection (optional)

8

5601 189 - 01

Vitodens 100-W, WB1B Technical Data

CombiPLUS Dimensions and Piping Connections

CombiPLUS Connections

Dimensions

Front view

Top view

Legend

A Boiler water supply, NPTM ¾” (male thread)
B Boiler water return, NPTM ¾” (male thread)
C System water supply, NPTM ¾” (male thread)
D System water return, NPTM ¾” (male thread)
E DHW, NPTM ½” (male thread)
F DCW, NPTM ½” (male thread)

Side view

with 7”

flex pipes

AB

CDEF

Front view

5601 189 - 01

9

Dimensions

Boiler Minimum Clearances

Vitodens 100-W, WB1B Technical Data

Recommended minimum boiler service clearances

Side

Top

Front

Side

5

7”/178mm

Back

Recommended minimum boiler and CombiPLUS Kit
clearances to combustibles

Top Front Rear Left Right Vent

0 0 AL,

CL

AL = Alcove
CL = Closet

1

Refer 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 dictated by the boiler latest
Harmonized Standard ANSI Z21.13. CSA 4.9.2007
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/PP(s) 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.

00 0 0

pipe*

1

CombiPLUS installation options

Min. distance between the boiler and CombiPLUS with
Viessmann supplied 7” flex piping connection fittings.

Note: The maximum distance between
the boiler and the CombiPLUS
is restricted by the communication
cable to 36” (915 mm).

10

Shown is the maximum distance between the boiler
and CombiPLUS using field supplied fittings and pipes.

5601 189 - 01