Viessmann VD2-950 Technical data

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Viessmann VD2-950 Technical data | Manualzz
Installation Instructions
for use by heating contractor
Vitorond 200
VD2 Series
Oil-/Gas-fired boiler
Heating input: 1255 to 4387 MBH
(368 to 1285 kW)
VITOROND 200
IMPORTANT
Please ensure that these instructions are read and
understood before commencing installation and
start-up. Failure to comply with these Installation
Instructions will render all warranties null and void.
Working on the equipment
The installation, adjustment, service and
maintenance of this product must be performed
by a licensed professional heating contractor,
who is qualified and experienced in the installation,
service and maintenance of hot water heating
boilers. There are no user serviceable parts on the
boiler, burner, or control.
Ensure main power supply to equipment, the
heating system and all external controls has been
deactivated. Close main oil or gas supply valve.
Take precautions in all instances to avoid
accidental activation of power during service work.
Improper installation, service or maintenance can
cause product/property damage, severe personal
injury, and/or loss of life.
Product may not be exactly as shown
IMPORTANT
Read and save these instructions for future
reference.
5285 429 - 03 12/2014
Please file in Service Binder
Safety
Vitorond 200, VD2 Series 320 to 1080 Installation
Safety, Installation and Warranty Requirements
Please ensure that these instructions are read and understood before commencing installation. Failure to comply with
the instructions listed below and details printed in this manual can cause product/property damage, severe personal
injury, and/or loss of life. Ensure all requirements below are understood and fulfilled (including detailed information
found in manual subsections).
Product documentation
Read all applicable documentation before commencing
installation. Store documentation near boiler in a
readily accessible location for reference in the future
by service personnel.
 For a listing of applicable literature,
please see section entitled “Important
Regulatory and Safety Requirements”.

Licensed professional heating contractor
The installation, adjustment, service and maintenance
of this equipment must be performed by a licensed
professional heating contractor.

 For information pertaining to the
proper installation, adjustment, service
and maintenance of this equipment to
avoid formation of carbon monoxide,
please see section entitled “Combustion
air supply” and “Venting information”
in this manual.

 Please see section entitled
“Important Regulatory and Installation
Requirements”.

Contaminated air
Air contaminated by chemicals can cause by-products
in the combustion process, which are poisonous to
inhabitants and destructive to
Viessmann equipment.
 For a listing of chemicals which
cannot be stored in or near the
boiler room, please see section
entitled “Mechanical Room”.
in this manual.


2
Advice to owner
Once the installation work is complete, the heating
contractor must familiarize the system operator/
ultimate owner with all equipment, as well as safety
precautions/requirements, shutdown procedure, and
the need for professional service annually before the
heating season begins.
Warranty
Information contained in this and
related product documentation must
be read and followed. Failure to do
so renders the warranty null and void.
Carbon monoxide
Improper installation, adjustment, service and/or
maintenance can cause flue products to flow into
living space. Flue products contain poisonous carbon
monoxide gas.
Fresh air
This equipment requires fresh air for
safe operation and must be installed
ensuring provisions for adequate
combustion and ventilation air exist.
 For information pertaining to the
fresh air requirements of this product,
please see subsection entitled
“Mechanical Room” in this manual.

Equipment venting
Never operate boiler without an installed venting
system. An improper venting system can cause
carbon monoxide poisoning.
 For information pertaining to
venting and chimney requirements,
please see section entitled “Venting
Information” in this manual. All
products of combustion must be
safely vented to the outdoors.
WARNING
Installers must follow local regulations with respect
to installation of carbon monoxide detectors.
Follow the Viessmann maintenance schedule of the
boiler in the “Service Instructions” manual.
5285 429 - 03

Safety
Vitorond 200, VD2 Series 320 to 1080 Installation
Safety, Installation and Warranty Requirements
(continued)
H Fiberglass wool and ceramic fiber materials
WARNING
Inhaling of fiberglass wool and/or ceramic fiber
materials is a possible cancer hazard. These materials
can also cause respiratory, skin and eye irritation.
The state of California has listed the airborne fibers of
these materials as a possible cancer hazard through
inhalation. When handling these materials, special care
must be applied.
Suppliers of ceramic fiber products recommend the
following first aid measures:
- Respiratory tract (nose and throat) irritation:
If respiratory tract irritation develops, move the
person to a dust free location.
- Eye irritation: If eyes become irritated, flush
immediately with large amounts of lukewarm water
for at least 15 minutes. Eyelids should be held away
from the eyeball to ensure thorough rinsing.
Do not rub eyes.
- Skin irritation: If skin becomes irritated, remove soiled
clothing. Do not rub or scratch exposed skin.
Wash area of contact thoroughly with soap and water.
Using a skin cream or lotion after washing may be
helpful.
5285 429 - 03
- Gastrointestinal irritation: If gastrointestinal tract
irritation develops, move the person to a dust free
environment.
Suppliers of fiberglass wool products recommend the
following precautions be taken when handling these
materials:
Precautionary measures
- Avoid breathing fiberglass dust and contact with
skin and eyes.
- Use NIOSH approved dust/mist respirator.
- Wear long-sleeved, loose fitting clothing, gloves
and eye protection.
- Wash work clothes separately from other clothing.
Rinse washer thoroughly.
- Operations such as sawing, blowing, tear-out and
spraying may generate airborne fiber concentration
requiring additional protection.
First aid measures
- If eye contact occurs, flush eyes with water to
remove dust. If symptoms persist, seek medical
attention.
- If skin contact occurs, wash affected areas gently
with soap and warm water after handling.
H Hazardous materials
WARNING
Appliance materials of construction, products of
combustion and the fuel contain alumina, silica, heavy
metals, carbon monoxide, nitrogen oxides, aldehydes
and/or other toxic or harmful substances which can
cause serious injury or loss of life and which are
known to the State of California to cause cancer,
birth defects and other reproductive harm. Always
use proper safety clothing, respirators and equipment
when servicing or working nearby the appliance.
3
Table of Contents
Vitorond 200, VD2 Series 320 to 1080 Installation
Page
Safety
Safety, Installation and Warranty Requirements..............2
Product documentation...........................................2
Licensed professional heating contractor ...................2
Contaminated air ...................................................2
Advice to owner ....................................................2
Warranty ..............................................................2
Carbon monoxide...................................................2
Fresh air ...............................................................2
Equipment venting .................................................2
Fiberglass wool and ceramic fiber materials ...............3
Suppliers of ceramic fiber products recommend the
following first aid measures:....................................3
Precautionary measures ..........................................3
First aid measures ..................................................3
Hazardous materials ...............................................3
Important Regulatory and Safety Requirements ..............7
Codes ..................................................................8
Mechanical room ...................................................8
Working on the equipment ......................................8
Technical literature ................................................8
Installation tools and materials.................................8
General Information
About these Installation Instructions .............................9
Product Information ....................................................9
Set-up
Mechanical Room .....................................................10
Minimum Clearances.................................................10
Minimum Clearances to Combustibles ....................10
Boiler model VD2 .................................................10
Recommended Minimum Service Clearances ...........10
Boiler Set-up and Location .........................................11
Transport into mechanical room .............................11
Foundation..........................................................11
Standard Equipment .................................................12
Number of cast iron sections per model ..................12
Assembly
Cast Iron Section Assembly .......................................13
Boiler Model VD2.................................................16
Number of sections ..............................................16
Tie rod layout 19 and 24 in. (480 and 610 mm) ......16
Water Distribution Pipe and Drain Installation ...............17
Hydrostatic Pressure Test..........................................18
4
5285 429 - 02
Flue Gas Turbulators and Combustion Chamber Door ....19
Vitorond 200, VD2 Series 320 to 1080 Installation
Table of Contents
Page
Connections
Water Side Connections ............................................20
Return temperature elevation.................................21
Venting Connection ..................................................22
In Canada ...........................................................22
In U.S.A. ............................................................22
Venting Requirements ...............................................22
Venting option #1 (Category I venting) ...................22
Chimney .............................................................22
Barometric draft regulator type ..............................23
Barometric draft regulator diameter ........................23
Venting option #1 (Category I venting) ...................22
Venting option #2 (Category III) .............................24
ProTech Systems Inc............................................24
Selkirk Metalbestos ..............................................24
Security Chimneys ...............................................24
Flue Gas Connection .................................................24
Flue gas test point location ...................................24
Removal of Existing Boiler .........................................25
Safety Connections and Pressure Testing ....................26
Pressure relief valve .............................................26
Boiler Pressure Test ..................................................26
Low Water Cut-off (LWCO) .......................................26
Enclosure
Enclosure Installation ................................................27
Boiler model VD2 .................................................27
Boiler Control Installation...........................................31
Enclosure Installation ................................................32
Burner
Burner Installation ....................................................33
5285 429 - 02
Combustion chamber sight glass............................33
Fuels ..................................................................33
Burner calibration .................................................34
Two-stage burner ................................................34
Model.................................................................34
Flue gas resistance ..............................................34
Fully modulating burner ........................................34
Weishaupt burners / Riello burners .........................34
Vitorond 200, VD2 with Viessmann / Vitotronic
controls ..............................................................34
Model.................................................................34
Input ..................................................................34
Min.1-stage .........................................................34
5
Table of Contents
Vitorond 200, VD2 Series 320 to 1080 Installation
Page
Start-up
System Preparation ..................................................35
Combustion air supply ..........................................35
Gas piping pressure test .......................................35
Initial System Fill ......................................................35
Prior to Start-up .......................................................36
Start-up Information .................................................37
Initial start-up ......................................................37
Instructing the system user ...................................37
Shut-down ..........................................................37
Extended shut-down periods .................................37
Start-up after extended shut-down .........................37
Appendix
Piping in Heating/Cooling Application ..........................38
6
5285 429 - 02
Technical Data .........................................................39
Technical Data ....................................................39
Boiler Model ........................................................39
Input (oil) ............................................................39
Input (gas) ..........................................................39
Output (oil/gas) ...................................................39
Combustion efficiency (oil) ...................................39
Combustion efficiency (gas) .................................39
Thermal efficiency (oil) .........................................39
Thermal efficiency (gas) .......................................39
Number of cast iron sections .................................39
Cast iron block dimensions....................................39
Cast iron section dimensions .................................39
Technical Data.....................................................40
Boiler Model.........................................................40
Dimensions (with insul. jacket) .............................40
Weight ...............................................................40
Overall weight .....................................................40
Boiler water content .............................................40
Max. boiler temperature ........................................... 40
Max. allow. operating pressure ..............................40
Boiler connections................................................41
Heating surface area ............................................41
Flue gas .............................................................41
Vent pipe collar ..................................................41
Flue gas resistance - at upper end of rated input ......41
Required flue draft Category I ................................41
Positive pressure Category III ................................41
Vitorond 200, VD2 Series 320 to 1080 Installation
Safety
Important Regulatory and Safety Requirements
For installations on the Commonwealth of Massachusetts, the following modifications to NFPA-54 chapter 10 apply:
Excerpt from 248 CMR 5-08:
2(a)
For all side-wall horizontally vented gas fueled equipment installed in every dwelling, building or structure
used in whole or in part for residential purposes, including those owned or operated by the Commonwealth
and where the side-wall exhaust vent termination is less than (7) feet above finished grade in the area of
the venting, including but not limited to decks and porches, the following requirements shall be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side-wall
horizontal vented gas fueled equipment, the installing plumber or gas fitter shall observe that a hard wired
carbon monoxide detector with an alarm and battery back-up is installed on the floor level where the gas
equipment is to be installed. In addition, the installing plumber or gas fitter shall observe that a battery
operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the
dwelling, building or structure served by the side-wall horizontal vented gas fueled equipment. It shall be
the responsibility of the property owner to secure the services of qualified licensed professional for the
installation of hard-wired carbon monoxide detectors.
a. In the event that the side-wall horizontally vented gas fueled equipment is installed in a crawl space or
an attic, the hard-wired carbon monoxide detector with alarm and battery back-up may be installed on
the next adjacent floor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of
installation, the owner shall have a period of thirty (30) days to comply with the above requirements;
provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector
with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance
with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the
building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal
for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no
less than one-half (b) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
4. INSPECTION. The state or local gas inspector of the side-wall horizontally vented gas fueled equipment
shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide
detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a) 1 through 4.
(b)
EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a) 1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the most current
edition of NFPA 54 as adopted by the Board; and
5285 429 - 03
2. Product Approved side-wall horizontally vented gas fueled equipment installed in a room or structure
separate from the dwelling, building or structure used in whole or in part for residential purposes.
7
Vitorond 200, VD2 Series 320 to 1080 Installation
Important Regulatory and Safety Requirements
Codes
Working on the equipment
The installation of this unit shall be in accordance with
local codes. In the absence of local codes, use:
CAN/CSA-B149.1 or .2 Installation
Codes for Gas Burning Appliances for Canada. For U.S.
installations, use the National Fuel Gas Code ANSI
Z223.1. Always use latest editions of codes.
The installation, adjustment, service, and maintenance
of this boiler must be performed by a licensed professional
heating contractor who is qualified and experienced in the
installation, service, and maintenance of hot water boilers.
There are no user serviceable parts on the boiler, burners,
or control.
Note: 
The completeness and functionality of field supplied
electrical controls and components must be verified
by the heating contractor. This includes low water
cut-offs, flow switches (if used), staging controls,
pumps, motorized valves, air vents, thermostats, etc.
For oil-fired boiler installation, use CSA B-139 in Canada
and NFPA 31 in the U.S. Always use latest editions of
codes.
In Canada all electrical wiring is to be done in accordance
with the latest edition of CSA C22.1 Part 1 and/or local
codes. In the U.S., use the National Electrical Code ANSI/
NFPA 70.
The heating contractor must also comply with the Standard
for Controls and Safety Devices for Automatically Fired
Boilers, ANSI/ASME CSD-1 where required by the
authority having jurisdiction.
Note: 
Please carefully read this manual prior to attempting
installation. Any warranty is null and void if these
instructions are not followed.
For information regarding other Viessmann System
Technology componentry, please reference
documentation of the respective product.
We offer frequent installation and service seminars
to familiarize our partners with our products. Please
inquire.
Mechanical room
Ensure the mechanical room complies with the
requirements of the System Design Guidelines and/or
Technical Data Manual. In addition, see section entitled
“Mechanical Room” on page 7 in this manual.
Viessmann recommends installation of an additional
electrical disconnect switch and a fuel shut-off valve
(if possible) outside the mechanical room or enclosed area
of installation.
The maximum room temperature of the mechanical room
where the boiler is located must not exceed 104°F ( 40°C).
8
(continued)
Ensure main power supply to equipment, the heating
system, and all external controls has been deactivated.
Close main gas supply valve. Take precautions in all
instances to avoid accidental activation of power during
service work.
Technical literature
Literature for the Vitocrossal 200 VD2 boiler:
- Technical Data Manual
- Installation Instructions
- Service Instructions
- Operating Instructions and User’s Information Manual
- Instructions of other Viessmann products utilized with
this installation
- Installation codes mentioned in this manual
For installation of the heating system, refer to the
technical literature of other System Technology devices:
- Installation Instructions for Viessmann boiler control
- Installation Instructions for Viessmann indirect-fired hot
water storage tank(s)
- Installation Instructions for burner and accessories
Note: 
Leave all literature at the installation site and advise
the system operator/ultimate owner where the
literature can be found. Contact Viessmann for
additional copies.
Installation tools and materials
In addition to standard tools and safety wear typically
necessary to install the boiler, the following are needed
to perform the assembly of this cast iron sectional boiler:
- draw tool kit
- wood/rubber mallet and regular hammer
- half-round metal file
- flat chisel
- lacquer solvent
- linseed oil
- cleaning rags
5285 429 - 03
Safety
Vitorond 200, VD2 Series 320 to 1080 Installation
General Information
About these Installation Instructions
Take note of all symbols and notations intended to draw attention to potential hazards or important product
information. These include “WARNING”, “CAUTION”, and “IMPORTANT”. See below.
WARNING
Note: W
arnings draw your attention to the presence of
potential hazards or important product information.
Indicates an imminently hazardous situation which,
if not avoided, could result in loss of life, serious
injury or substantial product/property damage.
CAUTION
Note: C
autions draw your attention to the presence of
potential hazards or important product information.
Indicates an imminently hazardous situation which,
if not avoided, may result in minor injury or product/
property damage.
IMPORTANT
Helpful hints for installation, operation or maintenance
which pertain to the product.
Note: T
his symbol indicates that additional, pertinent
information is to be found.

Note: T
his symbol indicates that other instructions must
be referenced.
Product Information
WARNING
Exposing the boiler to pressures and temperatures
in excess of those listed will result in damages,
and will render warranty null and void.
Sectional cast iron oil-/gas-fired hot water heating boiler.
For operation with modulating boiler water temperatures
in closed loop, forced circulation hot water heating
systems.
The Vitorond 200, VD2 boilers are Category I boilers
as defined by the ANSI 21.13/CSA 4.9-2000. See the
“Venting Connection” section in this manual for detailed
information.
The boiler model selected should be based on an accurate
heat loss calculation of the building. The boiler selected
must be compatible with the connected radiation.
Maximum working pressure. . . . . . . . . . 75 psig (5 bar)
Minimum working pressure. . . . . . .. . . .20 psig (1.5 bar)
Maximum boiler temperature. . . . . . . . . 248°F (120°C)
5285 429 - 03
This boiler does not require a flow switch.
9
Set-up
Vitorond 200, VD2 Series 320 to 1080 Installation
Mechanical Room
Boiler must be located in a heated indoor space.
The Vitorond 200, VD2 boiler should be located near
a floor drain and as close as possible to the vertical
chimney or vent.
Do not use exhaust fans without adding additional
provisions for fresh combustion air (e.g. fresh air fan)
in the boiler room and do not install the Vitorond 200,
VD2 boiler in rooms with refrigeration equipment.
This boiler requires uncontaminated air for safe operation
- do not install where chemicals are stored.
Whenever possible, install boiler near an outside wall so
that it is easy to duct fresh air directly to the boiler area.
Install boiler on flooring capable of supporting the weight
of the boiler filled with water.
See section entitled “Combustion air supply” on page 35
for further details.
Minimum Clearances
Minimum Clearances to Combustibles
Boiler model VD2320
380
Top
Sides
Flue (oil)
Flue (gas)
Front
Floor
440
500
560
630
700
6 in. (150 mm)
6 in. (150 mm)
9 in. (229 mm)
6 in. (150 mm)
6 in. (150 mm)
non-combustible
780
860
950
1080
Recommended Minimum Service Clearances
IMPORTANT
Maintain 1 in. air clearance from uninsulated hot water
pipes to combustible material.
IMPORTANT
Boiler must not be installed on carpeted surfaces.
Boiler model
VD2a Minimum Clearance
in.
in front of boiler
(mm)
b Minimum Clearance
in.
on boiler side
(mm)
c Minimum Clearance
in.
behind boiler
(mm)
d
in.
(mm)
10
320
65b
1660
20
500
39
1000
380
70
1790
20
500
39
1000
440
76
1920
20
500
39
1000
500
560
630
700
780
81
86
91
96
101
2050 2180 2310 2440 2570
20
20
20
20
20
500
500
500
500
500
39
39
39
39
39
1000 1000 1000 1000 1000
Dependent on burner model
860
106
2700
20
500
39
1000
950
111
2830
20
500
39
1000
1080
117
2960
20
500
39
1000
5285 429 - 03
Legend
A Outer rim of boiler base (without insulation)
Set-up
Vitorond 200, VD2 Series 320 to 1080 Installation
Boiler Set-up and Location
Boiler Base
5b in.
(140 mm)
>=4 in. (100 mm)
The boiler must be installed on a levelled base or
foundation, which must be designed to carry the entire
weight of the boiler, water fill, burner and attached
piping. To ease the installation of the individual sections,
angle-iron or flat steel may be incorporated into the
concrete foundation. Surface width of steel strips should
be 4 in. (100 mm).
Note: Inch dimensions rounded to the nearest ¼ in.
5285 429 - 03
4 in.
(100 mm)
35b in. (900 mm)
43a in. (1100 mm)
b
2 in. (50 mm)
a
4 in.
(100 mm)
Boiler
model
VD2320
VD2380
VD2440
VD2500
VD2560
VD2630
VD2700
VD2780
VD2860
VD2950
VD21080
a
in. (mm)
45
(1140)
49c
(1265)
54c
(1390)
59c
(1515)
64b
(1640)
69b
(1765)
74b
(1890)
79a
(2015)
84a
(2140)
87
(2205)
94
(2390)
b
in. (mm)
52a
(1330)
57a
(1455)
62a
(1580)
67
(1705)
72
(1830)
77
(1955)
82
(2080)
86c
(2205)
91c
(2330)
96b
(2460)
101b
(2580)
11
Set-up
Vitorond 200, VD2 Series 320 to 1080 Installation
Standard Equipment
All necessary parts to assemble the heating boiler are
packaged and shipped in the carton labeled “Boiler
Accessories”.
Boiler front
The heat exchanger block consists of a rear section with
mounted flue gas collar, a front section with mounted
combustion chamber door, and depending on the size
of the boiler, the appropriate number of intermediate
sections.
Individual cast iron sections are sealed by inserting
glass fiber rope gaskets which are glued into the precast groove system on each section to seal the flue gas
passageways.
The water side seal between the sections is achieved with
cast iron push nipples.
IMPORTANT
Observe directional arrows on cast iron sections. See Fig.
3, as well as step 7 on the following page.
Legend
A Combustion chamber door
B Front section
C Intermediate section
D Rear section
E Flue gas collar
Boiler model VD2-
12
320
380
440
500
560
630
700
780
860
950
1080
Total number of
sections
9
10
11
12
13
14
15
16
17
18
19
Number of
intermediate
sections
7
8
9
10
11
12
13
14
15
16
17
5285 429 - 03
Number of cast iron sections per model
Assembly
Vitorond 200, VD2 Series 320 to 1080 Installation
Cast Iron Section Assembly
1. Cut individual glass fiber rope seals and secure each
cut end against fraying by taping it with the supplied
masking tape.
CAUTION
The rope gaskets must be cut to exact lengths.
No openings between gaskets are acceptable.
Working from the rear section to the front section
requires the gasket only on the front side of the
section. Do not double gasket.
2. Lay each section flat, the side to be gasketed facing
up. Apply the supplied glue into the pre-cast grooves.
Allow the glue to dry approximately five minutes.
CAUTION
During the application of the glue, ensure proper
ventilation of the work area.
Legend
A Not to be installed on rear section
B Not for the last to be installed intermediate section
C Remove flanges from rear section prior to boiler
assembly
3. Press the three glass fiber rope seals properly into the
grooves while the cast iron section is still flat on the
ground. The ends of the rope must properly meet.
No openings between gaskets are acceptable.
4. Check both nipple ports for burrs and, if necessary,
remove burrs with a file. Never apply file in an in-andout motion on the nipple port, only in a circular motion
on the push nipple port sealing area. Clean the nipple
ports and nipple port face with solvent, dry properly
and paste with supplied linseed oil.
5. Clean both push nipples with solvent, dry and paste
with supplied linseed oil.
6. Insert push nipples into nipple ports and secure with
gentle hammer taps (wood or rubber mallet only).
Ensure push nipples are inserted evenly by tapping
in a cross-wise fashion. Remove any burrs, if necessary.
5285 429 - 03
7. Prepare an intermediate section according to steps
1 through 6. Arrows on the intermediate section must
point toward the rear section.
13
Assembly
Vitorond 200, VD2 Series 320 to 1080 Installation
Cast Iron Section Assembly (continued)
8. Align the prepared intermediate section with push
nipples of the rear section.
9. Lift the rear section onto the boiler foundation. Align
the section legs against the rear strip panel of the
boiler foundation (not shown). Properly position rear
section and secure against tipping.
10. Mount intermediate section with wood or rubber
mallet by tapping it onto the push nipples of the rear
section. Do not hammer in place.
IMPORTANT
For all sections, clean nipples with solvent and apply
supplied linseed oil.
IMPORTANT
During the entire compression procedure, all threads on
the draw tool assembly must be properly lubricated with
the supplied grease before use.
11. Insert the two main draw tool rods from the rear
section to the front section into the upper and lower
push nipple ports.
12. Slide pressure flanges onto the draw tool rods and
attach locking plates as shown.
13. Attach pressure nuts and align both parallel to each
other (same thread depth) by utilizing the ratchet
tool. Ensure that all sections are aligned parallel
to each other before applying pressure. Start to
tighten evenly. Once the push nipple ports touch,
do not apply further pressure. Do not use excessive
force if push nipple ports do not touch.
IMPORTANT
14
5285 429 - 03
During the compression procedure, draw in only one
additional section at a time to prevent leaks at the joints.
Assembly
Vitorond 200, VD2 Series 320 to 1080 Installation
Cast Iron Section Assembly (continued)
14. Loosen draw tool and remove pressure nuts.
15. Repeat steps 1 through 10 until the draw tool kit can
be used again. Do not glue glass fiber rope into center
of pre-cast groove of intermediate section attached
to front section (see page 10).
16. Attach extension rods to the main draw rods and
sections according to steps 11 and 12, until heat
exchanger block is completely assembled.
17. Remove supports after three sections have been
assembled.
18. Remove combustion chamber door from front section
by loosening threaded M 16 nuts.
19. Prepare front section in the same way as previous
sections and align with remainder of heat exchanger
block utilizing the draw tool kit in the same fashion as
before.
20. Tie rods with washers to top and bottom of heat
exchanger block according to pattern and table on
following page. Space threads on front and rear
sections evenly. Do not overtighten.
21. Loosen pressure nuts and remove draw tool kit.
Retighten all tie rods.
IMPORTANT
Only release the draw tool once the sections have been
joined with the tie rods.
22. Ensure that the heat exchanger block is level and
vertical on boiler base. All individual section legs must
properly rest on boiler foundation. Where necessary,
fill gaps with strips of sheet metal.
Please clean draw tool kit before re-crating, ensure that
all parts are included and crate is properly closed before
return shipment.
IMPORTANT
5285 429 - 03
All section feet must be firmly placed on the boiler base.
If necessary, shim section feet.
15
Assembly
Vitorond 200, VD2 Series 320 to 1080 Installation
Cast Iron Section Assembly (continued)
Top view
Boiler
front
Side view
Rear
section
Placement of tie rods
Number
of
sections
Note: Number 1 refers to rear section.
16
Tie rod layout 19 and 24 in. (480 and 610 mm)
5285 429 - 03
Boiler
model
VD2-
Assembly
Vitorond 200, VD2 Series 320 to 1080 Installation
Water Distribution Pipe and Drain Installation
1.
To assemble the water distribution pipe, pipe together
- rod end and extension rod and secure with supplied
sheet metal screws.
Number and length of the rods vary for different
boiler sizes.
- Mount gasket on flange rod and secure flange rod
with supplied brass screws.
2.
Slide water distribution pipe through lower nipple
ports.
Rear section
IMPORTANT
Ensure that distribution pipe openings are facing
upward.
R c in.
3.
Insert supply nipple into R c in. opening on rear cast
iron section and install supplied fill and drain valve.
IMPORTANT
Ensure that distribution pipe openings are facing upward.
Front section
“a” max, of
in. (7 mm).
4. Apply hemp and pipe dope to R 2 in. plugs and insert
into openings in the front section as shown.
5. Tighten R 2 in. plugs into front section using a 1 in.
square pipe tube or a 1” ratchet. Ensure that R 2 in.
plugs do not protrude beyond a maximum of 9/32 in.
(7 mm).
R 2 in.
plug
5285 429 - 03
9/32
17
Assembly
Vitorond 200, VD2 Series 320 to 1080 Installation
Hydrostatic Pressure Test
A hydrostatic pressure test is mandatory after the
assembly is complete and prior to the connection
of any additional piping, control, or safety devices
to the pressure vessel.
1.
In the e in. tapping on top of the rear section, install
supplied R e in. plug B. After pressure test has
been completed, replace R e in. plug with supplied
manual or automatic air vent C (watch for proper
pressure rating).
2.
In the c in. opening install the enclosed stainless
steel sensor well A using the supplied hemp and
pipe dope.
3.
Close off main boiler supply and return with a blanc
metal plate and flanges D and attach a pressure
gage (0-150 psig range) to safety header, as well as
another automatic air vent (watch for proper pressure
rating) to bleed all air properly from safety header.
4.
Fill pressure vessel with room temperature water
and check for proper venting of air.
5.
The minimum hydrostatic test pressure must be
110 psig, the maximum at 1½ times the maximum
operating pressure of the boiler (not to exceed 120
psig). Should the city water pressure not be enough,
utilize a hand pump connected to the drain valve
of the boiler.
6.
The test pressure should be maintained for 30
minutes. Inspect all top push nipple ports for leakage
using a flashlight. Inspect bottom push nipple ports
for leakage by sliding a piece of cardboard or paper
underneath the cast iron block.
7.
When pressure vessel is tight, release pressure
carefully and slowly remove automatic air vent.
Close opening with plug supplied, utilizing hemp
and pipe dope.
Installation of sensor well and preliminary air vent
Legend
A Sensor well
B R e in. plug
C Air vent
D Metric flanges*
*Two metric weld-neck flanges D are supplied with the
boiler (shipped inside combustion chamber). Use these
flanges to perform the hydrostatic test.
18
5285 429 - 03
Use a metal plate of sufficient gage between these
flanges and the boiler supply/return connection during
the hydrostatic test. After successful completion of the
hydrostatic test, remove the metal plate and discard.
Assembly
Vitorond 200, VD2 Series 320 to 1080 Installation
Flue Gas Turbulators and Combustion Chamber Door
Turbulators may not be exactly as illustrated.
1.
For models VD2-320 to VD2-860 only:
Insert the respective number of turbulators into each
flue gas passageway (see table below).
Push the first turbulator element approximately one
third of the way into the flue gas passageway, hook
in the second and third elements and push in.
2.
Attach the combustion chamber door to the front
section and align.
Observe the hinge side of the door.
The combustion chamber door is factory assembled
to hinge on the left-hand side. A right-hand hinge
is feasible by rebuilding the door hinge hardware.
See Installation Instructions Supplement for
Door Safety Switch (oil-fired boilers only).
5285 429 - 03
Boiler model VD2-
3.
Tighten combustion chamber door with M 16 screws.
4.
Insert sight glass into provided opening in combustion
chamber door.
320 to 440
500 and 560
630 to 860
Turbulator elements per
flue gas passageway
3
2
1
Turbulator elements per
boiler
12
8
4
19
Connections
Vitorond 200, VD2 Series 320 to 1080 Installation
Water Side Connections
IMPORTANT
Ensure all requirements detailed in the Vitorond 200, VD2
System Design Guidelines and/or Technical Data Manual
are met.
The Vitorond 200, VD2 boiler is only for use in forced
circulation hot water heating systems.
1.
Thoroughly rinse heating system (particularly when
retrofitting the Vitorond 200, VD2 to an existing
heating system).
2.
Install supply and return headers (see following page).
Make all heating system connections.
Installation of a spring-loaded flow check valve, immediately
downstream of the circulation pump in the heating circuit
supply as a mechanical “break”, is recommended to prevent
water from flowing unintentionally to (space) heating
circuits during DHW priority or summer operation (when
only DHW is produced).
Cast iron block, rear view
Legend
BR Boiler water supply connection
BS Drain
D Boiler water return connection
WARNING
Do not install an isolation valve between boiler and
safety header. Discharge pipe must be oriented
to prevent scalding of attendants.
3. Install safety piping.
IMPORTANT
20
5285 429 - 03
Removal of air from system water must occur via use
of air vent(s). To ensure the boiler can be purged of all air,
ensure supply/return water lines do not contain restrictive
piping where air could be trapped.
Connections
Vitorond 200, VD2 Series 320 to 1080 Installation
Water Side Connections (continued)
Return temperature elevation
Metric flange c/w
weld-on 2½ in.
NPT coupling
A suitable low temperature protection package from
Viessmann is necessary for Vitorond 200, VD2 boilers.
System
Selection of the appropriate package typically takes place
supply header prior to boiler delivery.
(ANSI), 4 in.
Please specify correct package at time of order.
Metric flange
c/w weld-on
2½ in. NPT
coupling
Install the 30% boiler flow package as illustrated.
The 30% boiler flow package consists of:
H 1 boiler pump
H 2 ball valves
H 1 flow check valve
Boiler supply
connection
(metric)
Metric flange
c/w weld-on
2½” NPT
coupling
System
return header
(ANSI), 4 in.
Boiler return
connection
(metric)
Legend
A Low water cut-off (standard equipment)
B Shunt pump
C Flow check valve
D Location of Honeywell aquastat
(to control boiler pump)
E Location of aJ sensor
(installed in stainless steel well)
All piping field supplied.
Install 100% boiler flow package as illustrated.
The 100% boiler flow package consists of:
System supply
header (ANSI)
H 1 3-way mixing valve
H 1 actuator
H 1 boiler pump
System
supply
Boiler supply
connection
(metric)
Legend
F Boiler pump
G 3-Way mixing valve
H Low water cut-off (standard equipment)
K Location of aJ sensor
(installed in stainless steel well)
All piping field supplied.
Boiler return
connection
(metric)
5285 429 - 03
System return
header (ANSI)
21
Connections
Vitorond 200, VD2 Series 320 to 1080 Installation
Venting Connection
WARNING
When installing or insulating (overhead) piping
or venting, do not stand on top panel of boiler.
Advise other trades accordingly!
Never operate boiler without an installed venting
system which safely vents all products of combustion
to the outdoors. The vent system must comply with all
applicable local and/or national codes.
Vitorond 200, VD2 boilers are Category I boilers as
defined in ANSI Z21.13 when used with natural gas.
Venting systems shall be sized and constructed in
accordance with approved engineering methods (ASHRAE,
HVAC Systems and Equipment Handbook, Chapter 31
“Chimney, Gas Vent, and Fireplace Systems”) including
the chimney and boiler manufacturer’s instructions.
In Canada
For gas-fired boilers install venting system in accordance
with all applicable local codes. In the absence of local
codes, follow national codes CAN/CSA B149.1 or .2.
For oil-fired boilers follow CSA B-139.
In U.S.A.
For gas-fired boilers connecting to gas vents or chimneys,
vent installations shall be in accordance with Venting of
Equipment of the National Fuel Gas Code, ANSI Z223.1
or applicable provisions of the local building codes.
For oil-fired boilers follow NFPA 31. Always use latest
editions of codes.
Venting Requirements
For natural gas or liquid propane use Type B vent or Type L
vent for the entire vent whenever possible.
Venting option #1 (Category I venting)
The Vitorond 200, VD2 boiler is approved as a Category I
appliance and must be vented accordingly.
CAUTION
The Vitorond 200, VD2A boiler is not approved for side
wall venting.
Chimney
For proper operation of the Vitorond 200, VD2 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 Vitorond 200, VD2 boiler.
If the chimney system lacks sufficient insulation and/or
the chimney diameter is too large, corrosive and damaging
condensation will result due to flue gases cooling too
quickly. If a calculated chimney diameter lies between
two values, the larger diameter should be selected.
The chimney connection length between the boiler
vent pipe collar and the chimney must be installed with
insulation.
Vent pipe collar diameter does not automatically indicate
vent/chimney size.
When installing the Vitorond 200, VD2 boiler, it is
necessary to install a barometric draft regulator in the
chimney/vent for proper operation of the boiler.
Install the barometric draft regulator within 5 to 7 ft.
(1½ to 2 m) from the breeching outlet located at the
rear of the boiler.
22
5285 429 - 03
We recommend consulting a reputable chimney installer
for advice in project-specific circumstances.
Connections
Vitorond 200, VD2 Series 320 to 1080 Installation
Venting Requirements (continued)
Venting option #1 (Category I venting)
For natural gas or liquid propane use Type B vent or Type L
vent for the entire vent whenever possible.
H Use approved vent material only.
Consult reputable chimney manufacturer such as
Security Chimney Ltd., Laval, PQ, Canada.
H The vent connector of this boiler must not be connected
to any portion of mechanical draft systems operating
under positive pressure.
Barometric draft regulator
Barometric draft regulator type
For natural gas or propane applications, use a doubleacting type.
For #2 fuel oil applications, use a single-acting type.
Barometric draft regulator diameter
The barometric draft regulator must be the same diameter
opening as the chimney for which the vent is sized.
For example, a 14 in. chimney would require a 14 in.
barometric draft regulator. Do not size the barometric
draft regulator to the breeching outlet of the boiler, unless
the chimney is also intended to be of that diameter.
IMPORTANT
The flue size outlet on the boiler does not automatically
determine the horizontal breeching, or the actual chimney
diameter.
The chimney size must be designed for the actual boiler
model and its respective input.
H The boiler should be located as close to the chimney
as possible. The vent connection must be made in
the shortest possible way with a minimal number of
elbows. If necessary, rearrange existing water piping
to achieve closest possible chimney connection. Avoid
long horizontal runs of vent pipe.
H Horizontal runs must be supported by appropriate
means to prevent sagging. Horizontal runs should have
no less than ¼ in. (6 mm) rise per ft. (31 cm) from the
boiler to the vent terminal. Metal strapping must be
used to support horizontal runs every 4 ft (1.2 m).
H Insulate vent pipe to reduce cooling of flue gas.
H Terminate venting system outside with approved
termination at least 6 ft. (1.8 m) above boiler. Vent
pipe must extend at least 3 ft. (91 cm) above the point
where it passes through the roof. Vent termination
must be at least 2 ft. (61 cm) higher than any portion
of the building within 10 ft. (3 m) horizontal, and vent
termination must be at least 2 ft. (61 cm) higher than
roof peaks within 10 ft. (3 m) horizontal.
Down draft and condensation problems must be
corrected.
H Drill a ½ in. (13 mm) opening on the side of the vent
pipe approximately three times the vent pipe diameter
away from the flue gas collar of the boiler for
combustion analyzing equipment.
H Do not use B-vent for #2 oil installations. A vent
approved for use with oil-fired installations must be
used.
H For natural gas or LP, B-vent may be used. A field
measurement of the stack temperature before dilution
air is required to ensure that the flue gas temperature
does not exceed 480ºF (249ºC) while using the B-vent.
H With this boiler installation it is recommended to install
an approved stainless steel liner in a masonry chimney
or unlined chimney.
Observe and follow local codes and regulations.
5285 429 - 03
H Based upon proper chimney and breeching size, the
boiler may be vented into a chimney / breeching
with a direct-fired (atmospheric) gas water heater.
Observe national codes and local rules and regulations.
23
Connections
Vitorond 200, VD2 Series 320 to 1080 Installation
Venting Requirements (continued)
Venting option #2 (Category III)
The Vitorond 200 boiler is a Category III positive pressure
non-condensing boiler. Each boiler must be vented
individually.
The vent system must be properly designed and suitable
materials must be selected. The chimney must be gas
tight.
Use an AL29-4C® special stainless steel venting system
(UL/ULC listed for Category III) for single-wall vertical
venting of the Vitorond 200 boiler.
For more details on the positive pressure venting option,
see the Viessmann installation instructions for the positive
pressure venting system.
IMPORTANT
The flue size outlet on the boiler does not automatically
determine the horizontal breeching, or the actual chimney
diameter.
The chimney size must be designed for the actual boiler
model and its respective input.
The following manufacturers may be contacted for
suitable stainless steel chimneys:
ProTech Systems Inc.
26 Gansevoort Street
Albany, NY 12202
Tel.: (518) 463-7284
Fax: (518) 463-5271
Toll free: 1-800-766-3473
Selkirk Metalbestos
Selkirk Canada Corporation - head office
375 Green Road
Stoney Creek, ON L8E 4A5
Tel.: (905) 662-6600
Fax: (905) 662-5352
Toll free:1-800-263-9308
Security Chimneys
Division of Security Chimneys Ltd.
2125 Monterey
Laval, PQ H7L 3T6
Tel.: (450) 973-9999
Fax: (450) 973-2222
Toll free:1-800-667-3387
Please refer to the Positive Pressure Venting
System Installation Instructions.
Flue Gas Connection
24
1.
Connect the flue outlet with the shortest possible
run and with a slight upward slope to the chimney
stack. Avoid sharp bends in the flue path.
Flue outlet.......................outside Ø 12 in. (300 mm)
2.
Create a flue gas test point by drilling a b in. (10 mm)
hole on the side of the vent pipe approximately two
to three times the vent pipe diameter away from the
flue gas collar of the boiler.
3.
Seal and insulate the vent pipe.
5285 429 - 03
Flue gas test point location
Connections
Vitorond 200, VD2 Series 320 to 1080 Installation
Removal of Existing Boiler
When an existing boiler is removed from a common
venting system, the common venting system is likely
to be too large for proper venting of the appliances
remaining connected to it.
5285 429 - 03
At the time of removal of an existing boiler, the following
steps shall be followed with each appliance remaining
connected to the common venting system placed in
operation, while the other appliances remaining connected
to the venting system are not in operation.
1.
Seal any unused openings in the common venting
system.
2.
Visually inspect the venting system for proper
size and horizontal pitch and determine there
is no blockage or restriction, leakage, corrosion,
or any other deficiency which could cause an unsafe
condition.
3.
To determine whether the building is operating
under negative pressure, insofar as is practical,
close all building doors and windows and all doors
between the space in which the appliances remaining
connected to the common venting system are located
and other spaces of the building. Turn on any exhaust
fans, such as range hoods and bathroom exhausts,
so they will operate at maximum speed. (Do not
operate a summer exhaust fan). Close fireplace
dampers.
4.
Place in operation the appliance being inspected.
Follow the lighting instructions. Adjust thermostat
so appliance will operate continuously.
5.
Test for spillage at the barometric draft control
relief opening 5 minutes of high fire/full load burner
operation. Use the flame of a match or a candle,
or an approved test.
6.
After it has been determined that each appliance
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fireplace dampers
and any other gas burning appliance to their previous
condition of use.
7.
Any improper operation of the common venting
system should be corrected so the installation
conforms with the National Fuel Gas Code, ANSI
Z223.1-1992 or latest edition. When resizing,
any portion of the common venting system should
be resized to approach the minimum size as
determined using the appropriate tables in Appendix
G in the National Fuel Gas Code, ANSI Z223.1.
25
Connections
Vitorond 200, VD2 Series 320 to 1080 Installation
Safety Connections and Pressure Testing
Pressure relief valve
Do not install any valve(s) between the pressure relief
valve and the boiler. When installing a discharge pipe from
relief valve to drain, adhere to the following excerpt from
the ASME Boiler and Pressure Vessel Code:
1.
When a discharge pipe is used, its internal crosssectional area shall be not less than the full area
of the valve outlet or of the total of the valve
outlets discharging thereinto and shall be as
short and straight as possible and so arranged
as to avoid undue stress on the valve or valves.
When an elbow is placed on a safety or safety relief
valve discharge pipe, it shall be located close to the
valve outlet.
2. The discharge from safety or safety relief valves
shall be so arranged that there will be no danger
of scalding attendants. When the safety or safety
relief valve discharge is piped away from the
boiler to the point of discharge, there shall be
provisions made for properly draining the pipe.
The size and arrangement of the discharge pipe shall
be such that any pressure that may exist or develop
will not reduce the relieving capacity of the relieving
devices that are required to protect the boiler.
Boiler Pressure Test
The boiler must be leak tested and hydrostatically
pressure tested with a maximum of 120 psig (827 kPa)
and a minimum of 110 psig (689 kPa) before being
connected to piping or an electrical power supply and
placed in operation.
1.
Install supply and return headers complete with
pressure gage, temperature gage, air vent, low
water cut-off, boiler drain valve and bypass pump.
Pipe up to isolation valves. Close isolation valves.
2.
Install temporary caps on the nipples for mounting
the pressure relief valve and expansion tank.
3.
Connect hose to boiler drain valve and fill boiler
slowly until pressure gage indicates max. 120 psig
(827 kPa).
4. Maintain pressure for 30 minutes. During time of
pressure testing, do not leave boiler unattended.
5. Inspect all push nipples and pipe connections with
flashlight for leaks. Place a piece of paper under the
cast iron block to catch any minor leaks from the
bottom push nipples.
6. After 30 minutes, release water pressure from
boiler by opening drain valve slowly, remove caps
and install pressure relief valve and expansion tank
immediately.
After boiler has passed pressure test, proceed with
installation.
Low Water Cut-off (LWCO)
If boiler is installed above radiation level, a low water
cut-off device of approved type (standard equipment)
must be installed in all instances. The approved low
water cut-off device must be installed by the mechanical
contractor where required by local codes.
26
5285 429 - 03
Viessmann recommends the use of a LWCO in all
instances.
Enclosure
Vitorond 200, VD2 Series 320 to 1080 Installation
Enclosure Installation
All components required for mounting the insulation are
included with the insulation material.
1.
Install cross bar supports according to measurements
listed in table below to casting notches, using the
16 x 80 bolts, washers and flat nuts.
Boiler
front
5285 429 - 03
Crossbar supports
Boiler model
VD2-
320
380
440
500
560
630
700
780
860
950
1080
a
in.
(mm)
31c
(805)
31c
(805)
31c
(805)
31c
(805)
31c
(805)
31c
(805)
31c
(805)
31c
(805)
31c
(805)
36c
(932)
26c
(679)
b
in.
(mm)
-
-
-
19c
(502)
19c
(502)
19c
(502)
24c
(628)
24c
(628)
29c
(755)
29c
(755)
19c
(502)
c
in.
(mm)
-
-
-
-
-
-
-
-
-
-
24c
(628)
27
Enclosure
Vitorond 200, VD2 Series 320 to 1080 Installation
Enclosure Installation (continued)
All components required for the enclosure panel assembly
are included in the jacket carton.
For positions of cross bar supports, please see table on
previous page.
2. Attach rear mounting brackets with the M 8 bolts.
Place the mounting brackets at a span of 41 in,
(1044 mm) (outside), in alignment with the outer edges
of the tie bar(s).
3. Fasten front left and right mounting brackets to the
upper hinge bolts, using M 12 nuts (longer extenders
at the top and with edge pointing backward).
Allow for a span of 43 in, (1090 mm) (outside)
between front brackets.
Insert sheet metal screws B 3.9 x 9.5 into side edging,
leaving 0.07 in, (2 mm) room.
5. Snap connecting panels along with space brackets into
lower anchor rod and tighten to top span bracket(s)
using sheet metal screws.
28
5285 429 - 03
4. Fasten space bracket with sheet metal screws B 3.9
9.5 to connecting panel.
Vitorond 200, VD2 Series 320 to 1080 Installation
Enclosure
Enclosure Installation (continued)
6. Lay insulation blankets onto outside of boiler, making
sure the black side is facing outward.
7. Secure rear insulation blanket (with cut-out facing
to the rear) with tension spring to outside insulation
blanket.
Cover the cuts with supplied fiber rope seal.
8. From behind the rear section, insert the insulation mat
underneath the assembled cast iron block. Push and/
or pull towards front section until insulation mat is
underneath entire length of cast iron block.
9. Insert hinges of side panels into the slots of the
mounting brackets according to table below. Slide
mid-panel (models VD2-500 to VD2-1080 only) as
required to left or right.
10. Insert right rear panel and left rear panel with hinges
into side panels and tighten with sheet metal screws
B 3.9 x 9.5.
11. Mount front panel on boiler as shown and secure with
sheet metal screws B 3.9 x 9.5.
5285 429 - 03
Boiler front
29
Enclosure
Vitorond 200, VD2 Series 320 to 1080 Installation
Enclosure Installation (continued)
Boiler
front
30
Boiler model
VD2-
320
380
440
500
560
630
700
780
860
950
1080
a
in.
(mm)
24c
(628)
24c
(628)
24c
(628)
19c
(502)
19c
(502)
19c
(502)
24c
(628)
24c
(628)
24c
(628)
29c
(755)
19c
(502)
b
in.
(mm)
19c
(502)
24c
(628)
24c
(628)
19c
(502)
19c
(502)
19c
(502)
24c
(628)
24c
(628)
29c
(755)
29c
(755)
19c
(502)
c
in.
(mm)
-
-
-
19c
(502)
24c
(628)
29c
(755)
24c
(628)
29c
(755)
29c
(755)
29c
(755)
24c
(628)
d
in.
(mm)
-
-
-
-
-
-
-
-
-
-
29c
(755)
5285 429 - 03
Side panel arrangement
Enclosure
Vitorond 200, VD2 Series 320 to 1080 Installation
Boiler Control Installation
1.
Drill four Ø d in. (3 mm) holes on the side panels A
and B as shown. For left-side mount use a mirror
image of the drawing.
2.
Punch a Ø 7/8 in. (22 mm) opening.
Note: On VD2-500, -560, 630 and -1080 boilers,
the bracket mounting overlaps side panel B.
5285 429 - 03
3. Install control harness bracket using supplied 8-32
self-tapping screws.
4. Install burner harness bracket and tighten the two
supplied screws.
5. Install top mounting hole cover with two supplied self
tapping screws.
31
Enclosure
Vitorond 200, VD2 Series 320 to 1080 Installation
Boiler Control Installation (continued)
6. Remove two plugs located on the back of the boiler
control housing using a flathead screw driver.
Mount control housing on the side panel.
7. Secure control housing using two supplied screws.
For electrical and boiler control connections,
see Installation Instructions of boiler control.
8. Run capillaries and boiler temperature sensor through
22 mm opening on side panel and insert them into
the sensor well as far as possible.
IMPORTANT
During installation and orientation of all cabling and
capillaries, ensure placement away from high heat sources
such as the vent, the chimney, or supply/return piping.
Enclosure Installation
B 3.9 x 9.5
B 3.9 x 9.5
32
1.
Mount top panel via hooks into side panels.
2.
Attach mid top panels (models VD2-500 and up)
with hook to side panels (not shown).
3.
Secure rear of top panels with hooks to side panels
and tighten to rear panels with B 3.5 x 9.5 sheet
metal screws.
4.
Fasten brackets to rear panel, using sheet metal
screws.
5.
Mount Vitorond 200 name plate to front panel as
shown.
5285 429 - 03
B 3.9 x 9.5
Burner
Vitorond 200, VD2 Series 320 to 1080 Installation
Burner Installation
IMPORTANT
After burner installation, the gap remaining between the
burner blast tube and the insulation insert on combustion
chamber door must be filled with the insulating material
supplied.
Viessmann has made Weishaupt and Riello burners
standard on all Vitorond 200, VD2 boilers; for details see
Technical Data Manual and/or Weishaupt burner manuals
(supplied with burner).
Only oil- or gas-fired burners of the approved type can
be utilized with the Vitorond 200, VD2 boiler. The boiler
must be fired with positive pressure in the combustion
chamber.
IMPORTANT
The boiler and burner shall be installed such that all
componentry is protected from water (dripping, spraying,
rain, etc.) during boiler operation and service.
IMPORTANT
The sight glass must be sealed for pressure tightness.
IMPORTANT
Do not overtighten the brass sight glass holder.
If overtightened, there is a risk of breaking the sight glass.
For burner details, see Technical Data Manual
and/or burner manufacturer’s relevant literature.
Combustion chamber sight glass
All Vitorond 200 combustion chamber doors are equipped
with a sight glass to observe the burner flame. In order
to avoid fogging of the glass, the observation port
is ventilated.
Connect the sight glass to the burner with the clear,
plastic hose supplied.
Fuels
Oil - Fuel Oil #2
Gas - Natural gas or LP
IMPORTANT
5285 429 - 03
Burner must be ordered specifically for a particular fuel,
or as a combination burner specifying the fuels.
Please see separate burner selection chart for Vitorond
200, VD2 boiler series in the Technical Data Manual.
33
Burner
Vitorond 200, VD2 Series 320 to 1080 Installation
Burner Installation
System
Preparation(continued)
(continued)
See separate instructions supplied with the
burner. The maximum input published for each
boiler size must not be exceeded.
Two-stage burner
Weishaupt burners / Riello burners
A Vitorond 200, VD2 boiler with a high-performance gas
burner installed can achieve a combustion efficiency
of up to 85%, and up to 88% if equipped with a #2 oil
burner as follows:
With a two-stage burner, when the boiler water
temperature falls below the minimum 140ºF (60ºC),
the burner automatically switches to the second stage
(full input) to protect the boiler from the effects of
dew-point condensation, i.e. condensation/corrosion.
Gas-fired
10% volume CO2, 280°F (138°C) net stack temperature,
CO in ppm < 50
In order to provide this protection, the burner must not
be limited to first stage operation during the summer
months.
Oil-fired
13% volume CO2, 300°F (149°C) net stack temperature,
smoke spot 0 - 1 (on the Bacharach Scale)
Model
See separate instructions supplied
with the burner.
Flue gas resistance
mbar
“w.c.
VD2-320
0.50
0.20
VD2-380
0.90
0.35
VD2-440
1.30
0.51
Vitorond 200, VD2 with Viessmann Vitotronic controls
VD2-500
1.70
0.67
VD2-560
1.90
0.75
VD2-630
2.10
0.83
VD2-700
2.80
1.10
VD2-780
3.90
1.54
To further protect the Vitorond 200, VD2 from dew-point
corrosion, the following minimum inputs on a 2-stage
burner must be adjusted for the first stage when the
boiler is used in conjunction with a Viessmann Vitotronic
controls, and when operating with modulating boiler
water temperatures.
VD2-860
4.90
1.93
VD2-950
4.50
1.77
VD2-1080
6.72
2.70
The maximum input published for each boiler size must
not be exceeded.
Model
Input
Input
Min.1-stage
input
Min.1-stage
Oil
MBH
Gas
MBH
Oil
MBH
Gas
MBH
VD2-320
1255
1300
753
780
VD2-380
1490
1544
895
926
VD2-440
1726
1787
1036
1072
VD2-500
1961
2031
1177
1219
VD2-560
2196
2275
1318
1365
VD2-630
2471
2559
1483
1535
VD2-700
1745
2843
1647
1706
VD2-780
3059
3168
1835
1901
VD2-860
3373
3493
2024
2096
VD2-950
3727
3860
2236
2316
VD2-1080
4236
4387
2542
2632
Fully modulating burner
When the Vitorond 200, VD2 is operated with a fully
modulating burner, the minimum boiler water temperature
is as follows:
Oil-fired burner. . . . . . . . . . . . . . . . . . . .140°F (60°C)
Gas-fired burner. . . . . . . . . . . . . . . . . .. 149°F (65°C)
Return water temperature elevation must be adjusted
to a minimum temperature of 129°F (54°C).
input
34
5285 429 - 03
Under partial load conditions, a minimum flue gas
temperature must be met. How high that minimum
flue gas temperature must be depends largely on the
configuration of the chimney insulation and height
of the chimney; however, it should be a minimum
of 248°F (120°C).
Start-up
Vitorond 200, VD2 Series 320 to 1080 Installation
System Preparation
WARNING
Failure to provide an adequate supply of fresh
combustion air can cause poisonous flue gases
to enter living space which can cause severe personal
injury or loss of life.
WARNING
Never cover the boiler or store debris or other
materials near the boiler, or in any way block the flow
of adequate fresh air to the boiler.
Never cover the combustion air opening or put anything
inside the draft hood.
Advise system operator/ultimate owner accordingly.
WARNING
Combustion air supply
Provisions for combustion and ventilation air must be made
in accordance with applicable local codes.
In the absence of local codes, use CAN/CSA-B149.1 or .2
Installation Codes for Gas Burning Appliances for Canada.
For U.S. installations use section 5.3, Air for Combustion
and Ventilation, of the National Fuel Gas Code ANSI
Z223.1.
For oil burning installations use CSA B-139 for oil
installations in Canada and NFPA 31 Standard for the
Installation of Oil Burning Equipment in the US.
Always use latest editions of codes.
Whenever possible, install boiler near an outside wall
so that it is easy to duct fresh air directly to the boiler
area. Refer to national codes for duct sizing and allowable
lengths. Round ducts can be used.
The boiler location must never be under negative pressure.
Exhaust fans, attic fans, or dryer fans may cause air to be
exhausted at a rate higher than air can enter the structure
for safe combustion.
The boiler must not be located in areas or rooms
where chemicals are stored, or aggressive vapors
from (i.e. bleach, hair spray, methyl chloride, carbon
tetrachloride or perchloroethylene) or high dust levels
or humidity levels are present.
Heat exchanger corrosion might occur and reduce
the lifetime of the boiler significantly. If above criteria
are not properly observed and boiler damage results,
any warranty on the complete boiler and related
components will be null and void.
Gas piping pressure test
1.
A sediment trap/dirt pocket must be provided upstream
of all gas controls. Provisions for connecting vent lines
or vent limiters are on gas regulator.
Connect and size gas supply piping in accordance
with local and national codes.
2.
Perform leak test. Never check for gas leaks with
an open flame. Use approved liquid spray solution
for bubble test. Ensure that no liquid is sprayed on
any electrical components, wires or connectors.
Do not allow leak detection fluid to contact gas valve
regulator or regulator vent opening.
3.
Remove air from gas line with an approved gas purge
burner or vent to outdoors.
The boiler and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 14” w.c. (3.5 kPa).
The boiler must be isolated from the gas supply piping
system by closing its individual manual shut-off valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than 14” w.c.
(3.5 kPa).
IMPORTANT
½ psig = 14 “w.c.
5285 429 - 03
Unions and the gas manifold have not been factorytested. A leak test must be completed during initial trial
operation of burner by a licensed gas fitter.
35
Start-up
Vitorond 200, VD2 Series 320 to 1080 Installation
Initial System Fill
Ensure that spring-loaded flow check valves are manually
opened prior to filling the heating system with water.
Once the system is completely filled and purged of air,
ensure that spring-loaded flow check valves are again
closed (set into “flow-check” operation).
Water treatment should be considered in areas where
it is known that boiler feed water contains a high mineral
content and hardness.
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.
The system also may contain components which might
be negatively affected by antifreeze. Check total system
frequently when filled with antifreeze.
Prior to Start-up
WARNING
Ensure the water quality was tested and is in
compliance with the guidelines for system-fill water.
Failure to do so may result in improper operation
and/or damage to the heating system.
j Check cold fill pressure of heating system.
j Check oil supply or proper natural or propane gas
supply pressure.
j Ensure proper barometric draft regulator is installed
(field supplied).
j Ensure clean out openings near flue gas collar are
closed tightly.
36
j Open valve(s) in oil or gas fuel supply lines.
j Activate all switches for heating system - system
switch, heating system pump, burner power supply,
etc. (observe instructions given by burner
manufacturer).
j If cold-starting burner (or if restarting burner after
lengthy service procedures), close off heating system
supply to ensure the boiler passes through the
dew-point rapidly.
j Once the supply water temperature has risen above
the minimum, gradually open up the boiler supply and
return valves to the heating system, and switch the
burner to automatic.
j Check all gaskets and connections and retighten
if necessary.
j Check and retighten bolts of combustion chamber door
and clean-out opening covers several days after start-up.
Follow instructions of boiler control, oil and/ or gas power
burner during boiler start-up.
5285 429 - 03
j Ensure that all turbulators are completely inserted into
the flue gas passageways (open combustion chamber
door).
j Ensure that combustion air openings and ventilation air
openings in mechanical room are open.
j Ensure the heating system has been filled with water
and is completely purged of air.
Start-up
Vitorond 200, VD2 Series 320 to 1080 Installation
Start-up Information
Initial start-up
Start-up after extended shut-down
Initial start-up must be performed by qualified personnel;
values and calibrations specified in the Technical Data
section on page 36 in this manual are to be recorded
at this time.
If the system was shut down for an extended period
of time, restart and recondition the system.
Instructing the system user
The installer of the system is responsible to ensure the
system operator/ultimate owner is made familiar with
the functioning of the system, its activation, and its
shut-down. The following topics must be covered:
H Proper system operation sequence.
H Explain the equipment as well as the need for
combustion air.
H Demonstrate an emergency shut-down, what
to do and what not.
H Explain that there is no substitute for proper
maintenance to help ensure safe operation.
H Annual inspection is recommended.
Shut-down
Deactivate main power to heating boiler(s) and burner(s)
if burners have separate power supply, and deactivate
power to circulating pump(s). Close all boiler isolation
valve(s) as well as all fuel supply valve(s).
Extended shut-down periods
If after the heating period the boiler is shut down for
the summer months (no domestic hot water production),
the boiler should be properly cleaned, incl. combustion
chamber, flue gas passageways, and, as necessary,
vent pipe connector, to avoid corrosion.
H Ensure all national and/or local rules and regulations
have been adhered to in this installation. Do not attempt
to start the boiler if you smell gas. If you smell gas,
open windows. Do not touch electrical switches,
extinguish any open flame, close all gas valves
immediately. Call your gas supplier immediately from
a neighbor’s phone.
H For oil burners, do not reset the burner flame safeguard
control more than two times.
H Check system for proper water fill (cold fill pressure).
Ensure that complete system is properly vented.
Adjust automatic feed valve to proper desired fill
pressure. Do not tamper with the unit or controls.
Never burn garbage or paper in the unit or leave
combustible materials around it.
WARNING
If system is subject to freezing temperatures and
is not filled with antifreeze for protection, the system
including the boiler must be drained of water.
The valve before the automatic feed valve (if installed)
must be closed; any other valves, air vents and drain
valves must stay open.
Depending on the control system utilized, reprogramming
of the control system might be necessary in the event
of lengthy power interruption.
5285 429 - 03
The boiler and system must remain filled with water.
Do not drain boiler or heating system.
37
Appendix
Vitorond 200, VD2 Series 320 to 1080 Installation
Piping in Heating/Cooling Application
The boiler, when used in connection with a refrigeration
system, must be installed so the chilled medium is piped
in parallel to the boiler with appropriate valves to prevent
the chilled medium from entering the boiler.
Heating/
Cooling Unit
Heating/
Cooling Unit
Heating/
Cooling Unit
Boiler
Supply
Water
Chiller
The piping system of a hot water heating boiler connected
to heating coils located in air handling units where they
may be exposed to refrigerated air circulation must
be equipped with flow control valves or other automatic
means to prevent gravity circulation of the boiler water
during the cooling cycle.
Check installation instructions of chiller manufacturer
carefully for additional requirements.
Cooling season starts:
Close valve V1 and open valve V2.
Boiler
Return
Heating season starts:
Close valve V2 and open valve V1.
A metal tag should be attached to these valves
as to purpose.
IMPORTANT
38
5285 429 - 03
In such a system, the circulating pump must be operated
from a separate on/off switch - not from the pump
aquastat on the boiler!
Appendix
Vitorond 200, VD2 Series 320 to 1080 Installation
Technical Data
Technical Data
Boiler Model
*1
VD2- 320
380
440
500
560
630
700
780
860
950
1255
(368)
1490
(436)
1726
(506)
1961
(574)
2196
(643)
2471
(724)
2745
(804)
3059
(896)
Input (gas)*1
MBH
(kW)
1300
(381)
1544
(452)
1787
(523)
2031
(595)
2275
(666)
2559
(750)
2843
(833)
3168
3493
3860
4387
(928) (1023) (1130) (1285)
Output
MBH
(kW)
1110
(325)
1319
(387)
1526
(447)
1732
(508)
1941
(569)
2183
(640)
2425
(711)
2699
(791
2976
(872)
Combustion
efficiency
(oil)
%
88.1
88.0
88.0
87.9
87.8
87.8
87.7
87.6
87.5
87.4
87.3
Combustion
efficiency
(gas)
%
85.5
85.4
85.4
85.3
85.2
85.1
85.1
85.0
84.9
84.8
84.6
Thermal
efficiency
(oil)
%
88.0
88.0
88.0
88.0
88.0
87.9
87.9
87.9
87.9
87.8
87.8
Thermal
efficiency
(gas)
%
85.4
85.4
85.4
85.3
85.3
85.3
85.3
85.2
85.2
85.2
85.2
9
10
11
12
13
14
15
16
17
18
19
(oil/gas)*2
Number of
cast iron
sections
3373
(988)
1080
MBH
(kW)
Input
(oil)*1
3727
4236
(1091 (1241)
3288
3738
(963) (1095)
Cast iron block dimensions
Length
in.
57
62
67
72
88
93
98
103
108
77b
82b
(mm) (1450) (1580) (1710) (1840) (1970) (2100) (2230) (2360) (2490) (2620) (2750)
Width
in.
40b
40b
40b
40b
40b
40b
40b
40b
40b
40b
40b
(mm) (1030) (1030) (1030) (1030) (1030) (1030) (1030) (1030) (1030) (1030) (1030)
Height
in.
45a
45a
45a
45a
45a
45a
45a
45a
45a
45a
45a
(mm) (1150) (1150) (1150) (1150) (1150) (1150) (1150) (1150) (1150) (1150) (1150)
Cast iron section dimensions
Front
section
(with
combustion
chamber
door)
in.
(mm)
45a x 40b x 10c
(1150 x 1030 x 270)
Intermediate
section
in.
(mm)
45a x 36a x 5
(1150 x 920 x 125)
Rear section
(with flue
gas collar)
in.
(mm)
45a x 36a x 9
(1150 x 920 x 290)
Note: Dimensions are rounded to the nearest a inch.
*1
5285 429 - 03
*2
Input ratings are based on ANSI Z21.13a.CSA 4.9a-2005 - Gas Fired Steam and Hot Water Boilers; CSA B140.705 - Oil Burning Equipment - Steam and Hot Water Boilers; CSA B140.0-03 - Oil Burning Equipment - General
Requirements; UL 726 - 7th ed. - Oil-Fired Boiler Assemblies; and UL 795 - Commercial Industrial Gas Heating
Equipment.
Tested to AHRI BTS-2000 “method to determine efficiency of commercial space heating boilers”.
39
Appendix
Vitorond 200, VD2 Series 320 to 1080 Installation
Technical Data (continued)
Technical Data
Boiler Model VD2320
Dimensions (with insul. jacket)
Total length
Total
width with
Vitotronic
control (sidemounted)
Total height
Weight
Front section
(with
combustion
chamber
door)
Intermediate
section
Rear section
(with flue gas
collar)
Cast
iron heat
exchanger
block
Overall weight
complete
with
insulation
Boiler water
content
Max. boiler
temperature*3
(= fixed high
limit)
Max. allow.
operating
pressure*4
380
440
500
560
630
700
780
860
950
1080
in.
(mm)
in.
(mm)
89
104 108c
58c
63c
68c
73c
78c
83c
93c
98c
(1490) (1620) (1750) (1870) (2000) (2130) (2260) (2380) (2510) (2640) (2760)
49a
49a
49a
49a
49a
49a
49a
49a
49a
49a
49a
(1250) (1250) (1250) (1250) (1250) (1250) (1250) (1250) (1250) (1250) (1250)
in.
(mm)
50¾
50¾
50¾
50¾
50¾
50¾
50¾
50¾
50¾
50¾
50¾
(1290) (1290) (1290) (1290) (1290) (1290) (1290) (1290) (1290) (1290) (1290)
lbs.
(kg)
529
(240)
529
(240)
529
(240)
529
(240)
529
(240)
529
(240)
529
(240)
529
(240)
529
(240)
529
(240)
529
(240)
lbs.
(kg)
lbs.
(kg)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
353
(160)
507
(230)
lbs.
(kg)
3748
4100
4453
4762
5115
5423
5776
6085
6437
6790
7143
(1700) (1860) (2020) (2160) (2320) (2460) (2620) (2760) (2920) (3080) (3240)
lbs.
(kg)
3924
4299
4652
4982
5335
5666
6019
6349
6702
7070
7429
(1780) (1950) (2110) (2260) (2420) (2570) (2730) (2880) (3040) (3210) (3370)
USG
(L)
ºF
(ºC)
65
(247)
248
(120)
73
(275)
248
(120)
80
(303)
248
(120)
87
(331)
248
(120)
95
(359)
248
(120)
102
(387)
248
(120)
110
(415)
248
(120)
117
(443)
248
(120)
124
(471)
248
(120)
132
(499)
248
(120)
139
(527)
248
(120)
psig
75
75
75
75
75
75
75
75
75
75
75
Note: Dimensions are rounded to the nearest a inch.
*4
40
The maximum supply operating temperature (= max. adjustable high limit) lies approx. 27°F (15°C) below the
fixed high limit setting.
May be less in some Canadian provinces.
5285 429 - 03
*3
Appendix
Vitorond 200, VD2 Series 320 to 1080 Installation
Technical Data (continued)
Technical Data
Boiler Model
VD2320
380
440
500
Boiler connections
Boiler supply
in.
4
4
4
4
and return
Safety supply*5
in.
2b
2b
2b
2b
Safety return*5
in.
2b
2b
2b
2b
Drain valve
in.
c
c
c
c
Heating surface area
Flue gas side
ft2
170
196
212
232
(m2)
(15.8) (18.2) (19.7) (21.5)
Water side
ft2
98
109 120b
131
(m2)
(9.1) (10.1) (11.2) (12.2)
Flue gas*6
- Temperature
ºF
374
374
374
374
(gross)*7
(ºC)
(190) (190) (190) (190)
- Flue gas mass
lbs./h
1301 1598 1854 2081
flow rate
(kg/h)
(590) (725) (841) (944)
With minimum heating input and a 2-stage burner (operation
- Temperature
ºF
266
266
266
266
(ºC)
(130) (130) (130) (130)
- Flue gas mass
lbs./h
710
842
974 1109
flow rate at
(kg/h)
(322) (382) (442) (503)
min. input rate
Boiler standby
loss based on
max. heating
input and hot
water supply and
return temps. of
167 / 140°F
(75 / 60°C)
Vent pipe collar
outer 7*8
Flue gas
resistance
- at upper end
of rated input
Required flue
draft Category I
Positive pressure
Category III
*5
*6
*7
*8
560
630
700
780
860
950
1080
4
4
4
4
4
4
4
2b
2b
c
2b
2b
c
2b
2b
c
2b
2b
c
2b
2b
c
2b
2b
c
2b
2b
c
254
(23.6)
142
(13.2)
274
(25.5)
153
(14.2)
296
(27.5)
165
(15.3)
317
(29.5)
175
(16.3)
339
(31.5)
18.7
(17.4)
358
(33.3)
198
(18.4)
380
(35.3)
209
(19.4)
374
374
374
374
374
383
383
(190) (190) (190) (190) (190) (195) (195)
2337 2601 2897 3196 3527 3825 4277
(1060) (1180) (1314) (1450) (1600) (1735) (1940)
of stage 1)
266
266
266
266
266
275
275
(130) (130) (130) (130) (130) (135) (135)
1241 1398 1552 1730 1907 2110 2394
(563) (634) (704) (785) (865) (957) (1086)
%
0.40
0.38
0.35
0.32
0.31
0.29
0.28
0.27
0.26
0.25
0.24
in.
(mm)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
“w.c.
(mbar)
0.20
(0.5)
0.35
(0.9)
0.51
1.3)
0.67
(1.7)
0.75
(1.9)
0.83
(2.1)
1.10
(2.8)
1.54
(3.9)
1.93
(4.9)
1.77
(4.5)
2.28
(5.8)
Pa
“w.c.
Pa
“w.c.
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
0
(0)
20
(0.08)
Connections for boiler connection kit (standard equipment).
Combustion results are based on 13.0% CO2 with fuel oil #2 and 10% CO2 with natural gas, as well as a system
supply temperature of 167°F (75°C), and a system return temperature of 140°F (60°C).
Measured flue gas temperature with a combustion air temperature of 68°F (20°C) and a boiler water temperature
of 176°F (80°C).
Vent pipe collar diameter does not automatically indicate vent/chimney size. See page 13 for details.
5285 429 - 03
The combustion burner head material must be suitable for temperatures of at least 932°F (500°C).
For information regarding other Viessmann System Technology componentry, please reference documentation
of respective product.
41
42
5285 429 - 03
Vitorond 200, VD2 Series 320 to 1080 Installation
5285 429 - 03
Vitorond 200, VD2 Series 320 to 1080 Installation
43
5285 429 - 03
Technical information subject to change without notice.
Printed on environmentally friendly
(recycled and recyclable) paper.
Vitorond 200, VD2 Series 320 to 1080 Installation

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