Page 1
Technical Data Manual
Model Nos. and pricing: see Price List
VITOGAS 050
Cast iron hot water heating boiler
65 to 200 MBH / 19 to 59 kW
Vitogas 050
ECV Series
Gas-/Propane-Fired Boiler
cast iron construction
atmospheric
Heating input: 6 5 to 200 MBH
5167 449 v1.3 01/2008
19 to 59 kW
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Product Information
Vitogas 050
Impressive performance, yet a very compact
design. Due to its compact dimensions, the
Vitogas 050 is ideal for installation in small
mechanical rooms and even in closets. In
addition to saving space, the Vitogas 050 is
economical in two ways - initial investment
and operational cost.
The benefits at a glance:
H Economical, compact,withintegrated
power vent for side wall venting only.
H High operational relia bility and a long
service life due to special high-grade gray
cast iron with lamellar graphite and
uniform heat transfer to avoid stress
fractures.
H Large diameter, stainless steel burners
provide quiet, reliable performance;
Annual Fuel Utilization Efficiency
(A.F.U.E.) of up to 83.1%.
H Optimal operation due to wide water
passageways and a wet-base, sectional
design.
H Compact dimensions – therefore suitable
for installation in almost any mechanical
room, or even closet installation.
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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5167 449 v1.3
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Technical Data
Technical data
Boiler Model Model No. ECV-65 ECV-80 ECV-100 ECV-115 ECV-140 ECV-155 ECV-180 ECV-200
CSA input MBH
kW
CSA / DOE output MBH
kW
A.F.U.E.
Heat exchanger surface area ft
*1
% 83.1 83.1 83.1 83.1 83.1 83.1 83.1 83.1
2
2
m
Cast iron sections 3 3 4 4 5 5 6 6
Burners 2 2 3 3 4 4 5 5
Manifold pressure
Natural gas
Propane gas
Max. gas supply pressure
“w.c.
“w.c.
*2
“w.c. 14 14 14 14 14 14 14 14
Overall dimensions
Overall depth
inches
mm
Overall width
inches
mm
Overall height
inches
mm
Height of Vitocell-H
DHW tank under boiler
– 130 to 200 ltr /
34 to 53 USG capacity
inches
mm
65
19
55
16
14.32
1.33
3.5
10
19¾
502
13½
340
41½
1030
28¼
715
80
23
67
20
14.32
1.33
3.5
10
19¾
502
13½
340
41½
1030
28¼
715
100
29
84
25
21.10
1.96
3.5
10
19¾
502
17
432
41½
1030
28¼
715
115
34
97
28
21.10
1.96
3.5
10
19¾
502
17
432
41½
1030
28¼
715
140
41
118
35
27.99
2.60
3.5
10
19¾
502
21
533
41½
1030
155
45
131
38
27.99
2.60
3.5
10
19¾
502
21
533
41½
1030
–
–
180
53
151
44
34.88
3.24
3.5
10
19¾
502
25
635
41½
1030
200
59
168
49
34.88
3.24
3.5
10
19¾
502
25
635
41½
1030
–
–
– 350 ltr / 92 USG capacity
– 450 ltr / 120 USG capacity
Weight, boiler with insulation, lbs
burners and packaging kg
Boiler water content USG
Max. operating pr essure psig
inches
mm
inches
mm
ltr
kPa
33¼
847
243
110
2.6
9.9
50
345
33¼
847
–
–
243
110
2.6
9.9
50
345
33¼
847
293
133
3.5
13.2
50
345
33¼
847
–
–
293
133
3.5
13.2
50
345
33¼
847
37¼
947
364
165
4.3
16.5
50
345
33¼
847
37¼
947
364
165
4.3
16.5
50
345
33¼
847
37¼
947
430
195
7.1
26.8
50
345
Boiler connections
Boiler supply and return Ø”
1¼ 1¼ 1¼ 1¼ 1¼ 1¼ 1¼ 1¼
(male thread)
Gas supply connection Ø”
½ ½ ½ ½ ½ ½ ½ ½
(male thread)
Vent pipe collar
Maximum equivalent vent
length
*1
With intermittent pilot electronic ignition system and integrated power vent,
Vitogas ECV Series boilers exceed the Canadian and U.S. minimum A.F.U.E. requirement of 80%.
*2
If the gas supply pressure is highe r than the maximum permissible value, a separate field supplied gas regulator must be installed
upstream of the boiler gas train.
*3
Venting material to be 3” / 76 mm or 4” / 10 2 mm diameter (depending on maximum equivalent vent length, see above) stainless steel
*3
inches 3 3 3 3 3 3 3 3
ft./m 20 ft. / 6 m with 3” Ø vent pipe
30 ft. / 9 m with 4” Ø vent pipe
UL approved venting system for positive pressure. Do not use any other venting materials. See Price List.
33¼
847
37¼
947
430
195
7.1
26.8
50
345
"
For information regarding other Viessmann System Technology componentry, plea se reference documentation of the respective product.
5167 449 v1.3
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Technical Data
FGC
BWS
GC
BWR
13” / 330 mm
3” / 76 mm
26½” / 673 mm
Overall width
Overall depth
Overall Height
32” / 813 mm
Legend
BWR Boiler Water Return
BWS Boiler Water Supply
FGC Flue Gas Collar
GC Gas Connection
Vitogas 050, ECV Series
Vitocell-H 100 or 300
(see separate Tec hnical Data Manuals)
Note:
Support Bars are installed lengthwise for ECV-65 through ECV-115 and widthwise for
ECV-140 through ECV-200. Widthwise installation is pictured. The Base Pan is installed
between the boiler and the Support Bars (also shown).
Dimensions
Boiler
ECV -65 -80 -100 -115 -140 -155 -180 -200
Model
With
Vitocell-H
DHW tank
under boiler
a inches
USG
ltr
mm
34 to
53
130 to
200
28¼
715
92
350
33¼
847
34 to
53
130 to
200
28¼
715
92
350
33¼
847
34 to
53
130 to
200
28¼
715
92
350
33¼
847
34 to
53
130 to
200
28¼
715
92
35092350
33¼
847
33¼
847
120
45092350
37¼
33¼
947
847
a
120
45092350
37¼
947
33¼
847
120
45092350
37¼
33¼
947
847
120
450
37¼
947
4
5167 449 v1.3
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Standard Equipment / Boiler Control Alternatives
Minimum Clearances to Combustibles
Closet installation, ECV-65 to -155 (top view) Alcove installation, ECV-180 and -200 (top view)
Technical Data
min.
1”
25 mm
Top clearance:
min. 6” / 150 mm
min. 18”
460 mm
Front of boiler
min.
1”
25 mm
min.
6”
150 mm
Recommended Minimum Service Clearances
For all Vitogas 050, ECV models
min.
18”
460 mm
min. 6” / 150 mm
min.
1”
25 mm
Top clearance:
min. 18”
460 mm
Front of boiler
min.
1”
25 mm
Installation on combustible flooring
A Base Pan (Optional Equipment) must
be ordered if the Vitogas 050, ECV
Series is to be installed on combustible
flooring. See Price List.
Top clearance:
min.
18”
460 mm
min. 18”
460 mm
Front of boiler
Standard Equipment
Boiler shell with mounted insulation jacket and
atmospheric burners for natural gas or
propane gas (as per order) conforming to local
regulations.
Standard equipment includes 30 psig pressure
relief valve, pressure gage, installation fittings,
and clean ing brush.
5167 449 v1.3
min.
18”
460 mm
Boiler Control
Standard control (included with boiler)
control with temperature gage, adjustable
high limit, and fixed high limit.
Vitotronic 200-H, HK1M Series (Optional
Equipment)
Digital mixing valve mounted heating circuit
control with outdoor reset function
to operate a heating circuit with a mixing
valve.
Mounting the Vitogas 050 on a
Vitocell-H
The Vitogas 050 can be mounted on a
Vitocell-H as shown previously to reduce
the footprint of heating equipment in the
mechanical room. Two Support Bars and
one Base Pan are necessary. Order a
Support Bar Kit from the Price List. Do
not attempt to install combinations not
listed in the Price List.
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Page 6
System Design Considerations
System Design Considerations
The Vitogas 050 is designe d 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 boile r selected must be
compatible with the connected radiation.
Venting
The Vitogas 050, ECV Series boiler must be
vented with AL 29-4C 3” or 4” (depending
on maximum equivalent vent length
required) stainless steel rigid positive
pressure vent pipe. Do not use any other
venting materials.
The boiler must be located so that the vent
length is as short and direct as possible. All
products of combustion must be safely
vented to the outdoors. Do not common
vent with any other appliance.
The vent terminal was certified by an
independent testing agency to withstand 40
mph winds. This boiler may not be suitable
for areas with frequent winds above
40 mph. The vent termination should be
located on a wall that is least affected by
prevailing winds. High winds may affect the
boiler operation and/or degrade the exterior
finish of the w all. If wind is a problem, then
steps should be considered to protect the
vent term inal from high winds, such as a
fence or shrub.
Maximum equivalent vent le ngth
The maximum equivalent vent length (for all
ECVSeriessizes)is20ft./6mof3ӯ
pipe or 30 ft. / 9 m of 4” Ø pipe. Do not
exceed the maximum equivalent vent length.
Details of venting instructions are found in
the ECV Series Installation/Service Manual.
To order venting materials, see Price List.
Warranty excerpts
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 w arranty information, please
read warranty sheet supplied with product.
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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 s oftener
salt, etc. The combustion air must not be
contaminated with the above mentioned, or
other aggressive or corrosive chemicals.
Boiler should never be installed in areas
where excessive dust, high humidity, or risk
of frost exist. Ensure adequate ventilation
and supply of fr esh combustion air.
Consult Viessmann with uncertainties in
regard to a suitable boiler installation
location.
This boiler/burner unit needs c lean fresh air
for safe operation and must be installed so
that there are provisions for adequate
combustion and ventilation air. For natural
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 must be used when installing a round
duct to supply combustion a ir from the
outside. Observe local jurisdictional
requirements.
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 (new
systems).
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 w ill 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 w hen filled with antifreez e.
Advise system operator/ultimate owner that
system is filled with a glycol mix.
The heating contractor must provide an
MSDS (Material Safety Data Sheet) for the
antifreeze used to the system
operator/ultimate owner.
Oxygen diffusion barrier
underfloor tubing
The boiler warranty does not cover leaks
resulting from corrosion caused by the use
of underfloor pla stic 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 pla stic 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.
5167 449 v1.3
Page 7
Installation Examples
Installation Examples
Important!
These examples depict possible piping layouts for Viessmann product equippe d with V iessmann 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 a mixing valve
Heating circuit
Spring-loaded flow check valve
Circulation pump
Pressure relief valve
Precharged expansion tank
Domestic hot water storage tank
(indirect-fired)
DHW Pump Module
The installation of the check valve to restrict
gravity cir culation in the heating supply pipe
prevents uncontrolled heat flow to the heating
system by gravity dur ing priority switching of
domestic hot water heating or during sum mer
operation.
5167 449 v1.3
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Page 8
Installation Examples
With a 4-way mixing valve to regulate heating circuit,
with domestic hot water control,
and with boiler activation capability
Heating circuit
Spring-loaded flow check valve
Circulation pump
Pressure relief valve
Precharged expansion tank
Domestic hot water storage tank
(indirect-fired)
Vitotronic 200-H, HK1M Series
mixing valve control
Printed on environmentally friendly
(recycled and recyclable) paper.
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 • info@viessmann-us.com
8
Viessmann Manufacturing Company Inc.
750 McMurray Road
Waterloo, Ontario • N2V 2G5 • Canada
Tel. (519) 885-6300 • Fax (519) 885-0887
www.viessmann.ca • info@viessmann.ca
Technical information subject to change without notice.
5167 449 v1.3
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