Full Text Searchable PDF User Manual
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Cast iron hot water heating boiler
90 to 240 MBH/26 to 70 kW
5167 462 v1.5 02/2011
Vitogas 100 with boiler stand
beside Vitocell-V 100 domestic hot water storage tank
Vitogas 100
Technical Data Manual
Model Nos. and pricing: see Price List
Vitogas 100
GS1 Series – residential, fully assembled boiler
Natural Gas-/Propane-Fired, Single-Stage Boiler
cast iron sectional construction
atmospheric, fully premix burner
Heating input: 90 to 240 MBH
26 to 70 kW
Product Information
2
Vitogas 100
Top performance in a small package. Thanks
to its compact dimensions, the Vitogas 100
is ideal for installation in closets and
alcoves. Apart from saving space, the
Vitogas 100 is economical in terms of
energy consumption with reduced
emissions.
The benefits at a glance:
H
High operational reliability and a long
service life
due to special high-grade gray
cast iron with lamellar graphite and a low
thermal load on the heat exchanger surface.
H
Clean combustion
due to atmospheric
premix burner with super-stoichiometric
premixing: NO
x
< 27.9 ppm (air-free),
CO < 9.2 ppm (air-free). The Vitogas 100
therefore meets the toughest emission
requirements in North America, such as
California regulations (SMAQMD).
H
Economical and environmentally friendly
operation via modulating boiler water
temperatures.
Annual fuel utilization efficiency (A.F.U.E.)
of up to 85.6 %.
H
Intermittent pilot ignition system provides
soft, quiet and
extremely reliable ignition.
H
Compact dimensions
– therefore suitable
for installation in a boiler room, a utility
room or even in an open living area.
H
Problem-free transport into
difficult-to-access
boiler rooms due to light
weight and compact design.
Heat exchanger surfaces of special
high-grade gray cast iron for high
operational reliability and a long
service life
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Product Information
Cross-Section
Product may not be exactly as illustrated.
3
Extremely effective
Heat exchanger surfaces of
Vitotronic – the new
insulation
special high-grade gray cast
generation of boiler controls:
iron with lamellar graphite
Intelligent, easy to install,
operate and service
Stainless steel atmospheric
A redundant gas
super-stoichiometric
valve doubles
premix burners for low-
operational safety
emission combustion
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Technical Data
4
Technical data
Boiler Model
Model No.
GS1-22
GS1-29
GS1-35
GS1-42
GS1-48
GS1-60
CSA input
MBH
kW
90
26
115
34
145
42
165
48
190
56
240
70
CSA output /
DOE heating capacity
MBH
kW
76
22
98
29
123
36
140
41
161
47
203
60
Net I=B=R rating
*1
MBH
kW
66
19
85
25
107
31
122
36
140
41
177
52
Heat exchanger surface area
ft
2
m
2
16.25
1.51
21.42
1.99
26.48
2.46
31.54
2.93
36.60
3.40
46.82
4.35
Min. gas supply pressure
Natural gas
Liquid propane
“w.c.
“w.c.
5
11
5
11
5
11
5
11
5
11
5
11
Max. gas supply pressure
*2
“w.c.
14
14
14
14
14
14
A.F.U.E.
*3
%
85.6
85.5
85.5
85.5
85.5
85.4
Overall dimensions
*4
Overall length
Overall width
Width
Overall height (operation)
– Height 1 (control unit in
position for operation)
– Height 2 (control unit in
position for servicing)
Height incl. flue pipe elbow
Height of boiler stand
Height of DHW tank
positioned under the boiler
– 42 to 53 USG/
160 to 200 liter capacity
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
33¼
844
25½
650
21½
546
33¼
845
37½
955
46½
1180
39
992
9¾
250
26
660
33¼
844
25½
650
21½
546
33¼
845
37½
955
46½
1180
39¾
1012
9¾
250
26
660
34
864
33
840
29
736
33¼
845
37½
955
46½
1180
39¾
1012
9¾
250
26
660
34
864
33
840
29
736
33¼
845
37½
955
46½
1180
39¾
1012
9¾
250
26
660
34
864
36½
930
32½
826
33¼
845
37½
955
46½
1180
42½
1082
9¾
250
––
34
864
43¾
1110
39½
1006
33¼
845
37½
955
46½
1180
42½
1082
9¾
250
––
Weight
, boiler with insulation,
lbs
burner and boiler control unit
kg
273
124
326
148
375
170
428
194
481
218
582
264
Boiler water content
USG
ltr
2.6
9.7
3.1
11.7
3.6
13.8
4.2
15.9
4.7
17.9
5.8
21.9
Max. operating pressure
psig
60
60
60
60
60
60
Number of intermediate
cast iron sections
2
3
4
5
6
8
Number of burners
3
4
5
6
7
9
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Technical Data
5
Technical data (continued)
Boiler connections
Boiler supply and return
Safety supply
Drain valve
” (male thread)
” (male thread)
” (male thread)
1½
1½
¾
1½
1½
¾
1½
1½
¾
1½
1½
¾
1½
1½
¾
1½
1½
¾
Gas supply connection
” (NPT)
½
½
½
½
½
½
Flue gas
*5
Temperature (gross)
Mass flow rate
– with natural gas
– with liquid propane
°F
°C
lbs/h
kg/h
lbs/h
kg/h
230
110
161
73
148
67
230
110
216
98
209
95
235
113
236
107
209
95
266
130
231
105
223
101
230
110
342
155
322
146
252
122
353
160
337
153
Vent pipe collar
outside Ø”
5
6
6
6
7
7
*1
Net I=B=R rating based on piping and pick-up allowance of 1.15.
*2
If the gas supply pressure is higher than the maximum permissible value, a separate gas regulator must be installed upstream of the
boiler system.
*3
With intermittent pilot electronic ignition system and vent damper.
*4
Height dimensions for Vitogas 100 include leveling bolts.
*5
Measured flue gas temperature after dilution air with combustion air temperature of 68 °F/20 °C.
"
For information regarding other Viessmann System Technology componentry, please reference documentation of the respective product.
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Technical Data
6
Boiler Stand (Accessory)
Vitocell-H – only those
combinations which are stated
in the Price List are possible.
See Boiler/Tank Compatibility Chart
on following page.
Dimensions
Boiler
Model
GS1
-22
-29
-35
-42
-48
-60
a
b
inches
mm
inches
mm
12¼
313
13¼
337
14¼
359
11½
291
15¾
402
17¼
438
17¾
448
15½
392
19½
494
17¼
436
23
587
20½
523
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Legend
BD
Boiler Drain
BWR Boiler Water Return
BWS Boiler Water Supply
DH
Draft Hood
GC
Gas Connection
SS
Safety Supply
Ov
e
ra
ll
h
e
ig
h
t
H
e
ig
h
t
1
H
e
ig
h
t
2
Overall length
H
e
ig
h
t
in
c
l.
fl
u
e
p
ip
e
e
lb
o
w
Width
Overall width
4
8
”
/
1
2
1
7
m
m
3
8
½
”
/
9
7
9
m
m
4
2
¼
”
/
1
0
7
2
m
m
3
3
¼
”
/
8
4
2
m
m
2
6
”
/
6
6
0
m
m
5
8
¾
”
/
1
4
9
3
m
m
9
¾
”
2
5
0
m
m
2
8
¼
”
/
7
1
9
m
m
2
2
”
/
5
5
7
m
m
1
6
¼
”
/
4
1
2
m
m
1
2
½
”
/
3
1
9
m
m
7
¼
”
1
8
2
m
m
3
0
¾
”
/
7
8
0
m
m
BD
GC
BWR
BWS
SS
DH
6¾” / 173 mm
3” / 78 mm
26” / 663 mm
20” / 510 mm
6¾” / 173 mm
BD
NGC
BWR
BWS
SS
DH
5
4
¼
”
/
1
3
7
9
m
m
Technical Data
7
Boiler/Tank Compatibility
Support bars may be required when
mounting a Vitogas 100, GS1 boiler on a
Viessmann Vitocell-H Series tank.
Refer to the following chart to determine
whether support bars are required for your
application.
Order numbers are listed for boiler/tank
combinations requiring support bars.
Certain boilers (listed with a “
z
” in the
chart) are directly compatible with the
Vitocell-H tank and thus do not require
additional hardware.
Combinations listed with “n.a.” are
incompatible. Do
not
attempt to install these
combinations.
For more information see Viessmann Price
List.
Boiler/Tank Compatibility
Vitocell-H 100
DHW storage tank
Vitocell-H 300
DHW storage tank
Vitogas 100
CHA-160
CHA-200
EHA-160
EHA-200
EHA-350
EHA-450
GS1-22/-29
GS1-35
GS1-42
GS1-48
GS1-60
z
z
n.a.
n.a.
n.a.
z
z
z
n.a.
n.a.
z
z
n.a.
n.a.
n.a.
z
z
z
n.a.
n.a.
n.a.
z
z
z
n.a.
n.a.
n.a.
n.a.
Z001 060
n.a.
Order No. = Support bars are required.
z
=
Support bars are not required. Boiler/tank are directly compatible.
n.a. = Boiler/tank are incompatible. Neither mounting with support bars, nor direct-mounting possible.
Waterside Flow (primary circuit)
Typical Flow Rates
Boiler Model
GS1
-22
-29
-35
-42
-48
-60
20°F rise
30°F rise
GPM
m
3
/h
GPM
m
3
/h
7.5
1.7
5.0
1.1
9.8
2.2
6.5
1.5
12.3
2.8
8.2
1.9
14.0
3.2
9.3
2.1
16.1
3.6
10.7
2.4
24
5.4
16.0
3.6
Use standard friction loss method for pipe sizing.
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P
re
s
s
u
re
d
ro
p
Water flow
ltr/h
GPM
“
w
.c
.
m
b
a
r
16
40
20
50
1.6
4
2.0
5
3.2
8
4
10
8
20
12
30
1.2
3
2
.2
5
0
0
2
.6
6
0
0
3
.5
8
0
0
4
.4
1
0
0
0
9
2
0
0
0
1
3
3
0
0
0
1
8
4
0
0
0
2
2
5
0
0
0
2
6
6
0
0
0
3
5
8
0
0
0
0.8
2
0.4
1
2.4
6
1
.3
3
0
0
1
.8
4
0
0
GS1-22
GS1-29
GS1-35 and -42
GS1-48 and -60
Technical Data
Standard Equipment/Boiler Control Alternatives
8
Recommended Minimum Service Clearances
Minimum Clearances to Combustibles
Boiler Model
GS1
-22
-29
-35
-42
-48
-60
Rear (from
draft hood)
inches
mm
6
150
6
150
6
150
6
150
6
150
6
150
Sides
inches
mm
0
0
0
0
0
0
0
0
0
0
0
0
Flue
inches
mm
6
150
6
150
6
150
6
150
6
150
6
150
Top
inches
mm
6
150
6
150
6
150
6
150
6
150
6
150
Floor
Combustible
All clearances are measured from boiler enclosure panel.
Standard Equipment
Note:
Boiler controls and burners are purchased
separately. Please see Price List for details.
Boiler shell with mounted insulating jacket and
atmospheric premix burners for natural gas or
liquid propane conforming to local regulations.
1 carton with boiler installation fittings
1 carton with safety header
1 carton containing either a vent damper or a
power venter (please specify at time of
order).
Carrying handles (accessory) are available to
facilitate transport to the boiler location. See
Price List.
See previous page and/or Price List for
possible boiler/DHW tank combinations.
Boiler Control Alternatives
Vitotronic 100, KK10
standard boiler control for high temperature
heating systems
Vitotronic 100, KW10
standard boiler control for high temperature
heating systems with indoor/outdoor system
control
Vitotronic 100, KW10A / KW10B
standard boiler control for high temperature
heating systems with indoor/outdoor system
control
With or without DHW
Vitotronic 200, KW2
for multiple-temperature heating systems
with or without a mixing valve,
with indoor/outdoor digital boiler and heating
system control
Vitotronic 300, KW3
for multiple-temperature heating systems
with up to two mixing valves,
with indoor/outdoor digital boiler and heating
system control
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min.
27½” / 700 mm
min.
9¾”
250 mm
m
in
.
9
¾
”
2
5
0
m
m
m
in
.
9
¾
”
2
5
0
m
m
top min.
24” /
600 mm
System Design Considerations
9
System Design Considerations
The Vitogas 100 is designed for closed loop,
forced circulation hot water heating systems
only.
Boiler selection
The boiler model size should be based on an
accurate heat loss calculation of the
building. The boiler selected must be
compatible with the connected radiation.
Venting
For proper operation of the Vitogas boiler, all
products of combustion must be safely
vented to the outdoors, while ensuring that
flue gases do not cool prematurely.
It is critical that the chimney system be
properly designed to handle the relatively
cool flue gas temperatures produced by the
Vitogas boiler.
Flue gases which cool too quickly and
produce condensation lead to damages if
the chimney diameter is too large and the
chimney system is not well insulated.
If a calculated chimney diameter lies
between two values, the larger diameter
should be selected.
The Vitogas 100, GS1 boiler is a Category I
boiler as defined in the ANSI Z21.13 CSA
4.9 Standard. Use approved vent material
(such as B-vent) only.
Intermediate section
Use the shortest possible path between the
boiler and the chimney. A maximum of two
elbows may be installed in the intermediate
section. Avoid the use of two level 90°
elbows.
The intermediate section must be sealed gas
tight at the boiler vent pipe collar and at the
chimney connection. Ensure any test port
for combustion values is sealed as well.
The chimney connection between the boiler
vent pipe collar and the chimney must be
installed with insulation. We recommend
consulting a reputable chimney installer for
advice in project-specific circumstances.
Warranty
Our warranty does not cover damages
resulting from the following:
– installation or service by unqualified and
not licensed personnel
– corrosion caused by flue gas condensation
due to low boiler water and/or return
water temperatures
– operation with contaminated fill and
supplementary feed water
For detailed warranty information, please
read warranty sheet supplied with product.
Combustion air supply
The boiler must not be located in areas or
rooms where chemicals containing chlorine,
bromine, fluorine, or other corrosive
chemicals are stored. Examples include
refrigerants, bleach, paint, paint thinner, hair
spray, cleaning solvents, water softener
salt, etc. The combustion air must not be
contaminated with any amount of the above
mentioned chemicals.
Boiler should never be installed in areas
where excessive dust, high humidity, or risk
of frost exist. Ensure adequate ventilation
and supply of fresh combustion air.
Consult Viessmann if uncertainties exist in
regard to a suitable boiler installation
location.
This boiler/burner unit needs clean fresh air
for safe operation and must be installed so
that there are provisions for adequate
combustion and ventilation air.
For gas or propane, use the “Natural Gas
Installation Code CAN/CSA-B149.1 or
B149.2” (Canada), or “National Fuel Gas
Code ANSI Z223.1” (USA), and/or
provisions of local codes.
The sizing methods outlined in the above
codes should be used when installing a
round duct to supply combustion air from
the outside.
System layout
The boiler water temperature limit is factory
set to 167 °F/75 °C.
The boiler water temperature limit can be
increased by altering the adjustable high
limit to increase the supply water
temperature.
To minimize piping losses of the system
however, we recommend that the radiation
and domestic hot water production in the
system be designed for a 158 °F/70 °C
boiler supply water temperature.
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. A 40% antifreeze
content will provide freeze-up protection to
-10 °F/-23 °C. 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.
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.
Low water cut-off
A low water cut-off may be required by local
codes. If 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.
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Installation Examples
10
Installation Examples
These examples depict possible piping layouts
for Viessmann product equipped with
Viessmann System Technology. For boiler and
tank combinations, please install only the
feasible combinations listed in the Price List.
These are simplified conceptual drawings only!
Piping and necessary componentry must be field
verified.
Proper installation and functionality in the field is
the responsibility of the heating contractor.
Without mixing valve
e.g. with Vitotronic 100
The installation of the check valve to restrict
gravity circulation in the heating supply pipe
prevents uncontrolled heat flow to the heating
system by gravity during priority switching of
domestic hot water heating or during summer
operation.
Heating circuit
Spring-loaded flow check valve
Circulation pump
Safety header
with automatic air vent,
pressure relief valve, and
pressure gage
Expansion tank
Domestic hot water storage tank
(indirect-fired)
DHW pump module
Bypass pipe (highly recommended)
c/w two regulating valves (V
1
, V
2
)
See Installation Instructions for details.
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IMPORTANT
V
1
V
2
V
1
V
2
Installation Examples
11
With 3-way mixing valve to regulate heating circuit
e.g. with Vitotronic 200, KW2 combined with a mixing valve actuator accessory kit
Heating circuit
Spring-loaded flow check valve
Circulation pump
Safety header
with automatic air vent,
pressure relief valve, and
pressure gage
Expansion tank
Domestic hot water storage tank
(indirect-fired)
3-way mixing valve
Bypass pipe (highly recommended)
c/w two regulating valves (V
1
, V
2
)
See Installation Instructions for details.
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V
1
V
2
V
1
V
2
Viessmann Manufacturing Company Inc.
750 McMurray Road
Waterloo, Ontario
•
N2V 2G5
•
Canada
Tel. (519) 885-6300
•
Fax (519) 885-0887
www.viessmann.ca
•
mail@viessmann.ca
Viessmann Manufacturing Company (U.S.) Inc.
45 Access Road
Warwick, Rhode Island
•
02886
•
USA
Tel. (401) 732-0667
•
Fax (401) 732-0590
www.viessmann-us.com
•
mail@viessmann-us.com
Installation Examples
12
With 4-way mixing valve to regulate heating circuit
e.g. with Vitotronic 200, KW2 combined with a mixing valve actuator accessory kit
Heating circuit
Spring-loaded flow check valve
Circulation pump
Safety header
with automatic air vent,
pressure relief valve, and
pressure gage
Expansion tank
4-way mixing valve
Domestic hot water tank
(indirect-fired)
Bypass pipe with flow regulating
valve, for systems with large water
content (>1 USG/13 000 Btu/h / 15
ltr/kW/h of boiler input).
See Installation Instructions for details.
Underfloor heating system with system separation
Underfloor heating circuit
Spring-loaded flow check valve
Circulation pump for underfloor
heating circuit
Safety header
with automatic air vent,
pressure relief valve, and
pressure gage
Expansion tank
3-way mixing valve
Circulation pump for heat exchanger
Heat exchanger
Supply temperature sensor
T
e
c
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ic
a
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in
fo
rm
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.
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o
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ir
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e
c
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c
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d
a
n
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c
la
b
le
)
p
a
p
e
r.
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