Viessmann Vitodens 100-W Instruction manual

VITODENS 100-W 
Gas-fired wall-mounted condensing boiler
37 to 118 MBH / 10.8 to 34.6 W
Vitodens 100-W
WB1B Series
Gas-Fired Wall-Mounted Condensing Boiler
with modulating stainless steel MatriX cylinder
burner and stainless steel Inox-Radial heat exchanger
for room air independent operation
(using a direct vent system) or room
air dependent operation
Technical Data Manual
Model Nos. and pricing: see Price List
Vitodens 100-W, WB1B
with preinstalled coaxial vent pipe adaptor)

This trademar is registered with the U.S. Patent and Trademar Office.
5369 277 v1.5 01/2010

Product Information
2
VITODENS 100-W
Equipped with a Viessmann stainless steel
heat exchanger for lasting performance and
reliability and a modulating MatriX cylinder
gas 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 95.2 % A.F.U.E.
on all models.
HLasting performance
with Viessmann-made SA240 316Ti
stainless steel Inox-Radial heat exchanger
constructed to ASME Section IV and CSA
B51.
HLow-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)
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 ma e
it a great choice for limited-space
installations.
HExtremely quiet operation;
quieter than most refrigerators.
< 50 dBA (at 1 meter / 3.3 ft.)
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 high altitude levels
of up to 10,000 ft. / 3,000 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.
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Product Information
Cross-Section
3
Legend
Stainless steel MatriX cylinder burner
Inox-Radial stainless steel heat
exchanger
Burner blower
Gas and hydronic connections
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 it.
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C
DE
B
A
Product may not loo exactly as illustrated.

Technical Data
4
Technical Data
Standard heating boiler
Boiler Model Model No. WB1B 26 WB1B 35
Natural gas and LPG
CSA input
CSA output/DOE*1
heating capacity
MBH
W
MBH
W
37-91
10.8-26.7
34-83
9.9-24.3
37-118
10.8-34.6
34-108
9.9-31.6
Net I=B=R rating*2 MBH 72 94
Heat exchanger surface area ft.2
m2
10.23
0.86
10.23
0.86
Min. gas supply pressure
Natural gas
LPG
“w.c.
“w.c.
4
10
4
10
Max. gas supply pressure*3
Natural gas and LPG “w.c. 14 14
A.F.U.E. %94.0 94.0
Weight lbs
g
78
34.1
78
34.1
Shipping weight lbs
g
95
43
95
43
Boiler water content USG
ltr
0.87
3.3
0.87
3.3
Boiler max. flow rate*4 GPM
ltr/h
6.2
1400
6.2
1400
Max. operating pressure
at 210ºF / 99ºC
psig
bar
45
3
45
3
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
86 to 176 / 30 to 80
172 / 78
210 / 99
Boiler connections
Boiler heating supply and return NPTM (male) “
Pressure relief valve NPTF (female) “
Drain valve (male thread)
¾
¾
¾
¾
¾
¾
Dimensions
Overall depth
Overall width
Overall height
inches
mm
inches
mm
inches
mm
141/8
360
15¾
400
28½
725
141/8
360
15¾
400
28½
725
*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 “Maximum Flow Rates” on pages 15 to 17 in this manual.
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Vitodens 100-W
5
Standard heating boiler
Boiler Model Model No. WB1B 10-26 WB1B 10-35
Gas supply connection NPTF “ ¾ ¾
Flue gas*5
Temperature (at boiler return
temperature of 86ºF / 30ºC)
– at rated full load
– at rated partial load
Temperature (at boiler return
temperature of 140ºF / 60ºC)
ºF / ºC
ºF / 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
g/h
lbs/h
g/h
Pa
mbar
79.2
36.0
33.0
15.0
100
1.0
100.1
45.5
33.0
15.0
100
1.0
Flue gas temperature sensor
limit ºF / ºC 230 / 110 230 / 110
Average condensate
flow rate*6
with natural gas
– TS/TR=122/86ºF / 50/30 ºC USG/day
ltr/day
1.95-2.3
8-9
2.5-2.8
9.4-10.5
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
Noise level at 1 meter)
– at full load
– at partial load
(dB)
(dB)
47
40
49
42
High altitude factory set)*9
ft. / m 0-5,000 / 0-1,500 0-5,000 / 0-1,500
*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.
*9 For 5,000 to 10,000 ft / 1,500 to 3,048 m operation, a coding address 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.
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Vitodens 100-W
6
Vitodens 100-W, WB1B 26/35
without piping connections
Connections Vitodens 100-W,
WB1B 10-26, 10-35
Legend
Connections
Condensate drain, plastic hose
Ø 1” / 25mm
Boiler water supply, NPT ¾” (male
thread)
Gas connection, NPT ¾” (male thread)
Boiler water return, NPT ¾” (male
thread)
ECombustion air opening for double pipe
system
FCombustion air opening for co-axial
system
Dimensions
a See fig. 2 for dimensions
b 15¾” / 400 mm
c 25/8” / 68 mm
d 28½” / 725 mm
e 47/8” / 123 mm
f 61/8” / 156 mm
g 141/8” / 360 mm
h 5” / 125 mm
j 97/8” / 250 mm
11/4” / 31 mm
m 77/8” / 200 mm
n 31/8” / 80 m
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a
b
ee
f
g
h
B
A
DC
nn
m
E F E
j
c
d
Fig. 1 Front view Top view
Side view

Vitodens 100-W
7
Vitodens 100-W, WB1B 26/35
with piping connections
Piping connections for Vitodens
100-W, WB1B 10-26 and 10-35
factory supplied)
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)
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14” /
355mm
15¾” /
400mm
2
7
/
8
” / 73mm
12” / 300mm
2
5
/
8
”/
68 mm
6” /
152mm 4
7
/
8
” /
123mm
4
7
/
8
” /
123mm
VC
CAI CAI
PG
Fig. 2
28½” / 725 mm
32½” / 826 mm
PRV
BD
GC BF
BWS
BWR
Fig. 3

Vitodens 100-W/Technical Data
8
Recommended Minimum Service Clearances Minimum Clearances to Combustibles
Top Front Rear Left Right Vent pipe*1
0 0 AL,
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.
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Front
12”/305 mm
Top
12”/305 mm
0”/mm
28”/700 mm
Side
0”/mm
Bac
Side
Fig. 4
12”/300 mm*1
4”/100 mm
28”/
700 mm
¼”/5 mm ¼”/5 mm¼”/5 mm
Fig. 5

Technical Data/Heating Circuit Pumps
9
Waterside Flow boiler 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
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, WB1B 10-26, 10-35:
HGrundfos 15-58 (3-speed)
HTaco 00R
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).
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0 500 1000 1500
0
1
2
3
4
5
6
0
3.3
6.6
9.8
13.1
16.4
19.7
ft.
2000 ltr. / hr.
7
8
23
26
Flow rate (USGPM)
Supply head pressure (ft. water)
0 2.2 4.4 6.6 8.8 GPM
m
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
10
Domestic Hot Water Production via DHW Storage Tank
Vitodens 100-W boilers can be used in
conjunction with the stand-alone DHW
storage tan s offered by Viessmann (a
separate DHW controller should be field
supplied). All Viessmann DHW storage
tan s sold in North America are available in
“Vitosilver” finish only.
Size and select the DHW storage tan based
on the forecast DHW consumption of the
building in question.
For further technical information on DHW
storage tan s, see the Vitocell-V Technical
Data Manuals.
Wall Mounting Information
The Vitodens 100-W (model WB1B 10-26
and 10-35) comes with a template, which
allows you to easily mar the location of the
screws for the mounting brac et and the
location of the flue gas pipe on the wall
(Viessmann coaxial PPS vent system only).
The connection to the heating circuits must
be made on site (installation fittings are
supplied in the Installation Fittings pac age
supplied with the boiler).
Legend
Mounting template
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Fig. 6