Viessmann VITOROND 200 Type VD2 Instruction manual

for use by heating contractor
5285 428 - 03 03/2015
Technical Data Manual
VITOROND 200
Vitorond 200 VD2 Series
Triple-pass hot water heating boiler
1255 to 4387 MBH (368 to 1285 kW)
Vitorond 200
Oil-/Gas-fired boiler
sectional cast iron design with Eutectoplex heat transfer surface, in triple-pass design
for operation with modulating water temperatures
Heating input: 1255 to 4387 MBH
(368 to 1285 kW)
Product may not be exactly as shown

Vitorond 200, VD2 Series 320 to 1080 Technical Data
5285 428 - 03
Product Information
Safety and Installation Requirements
Refer to the Installation Instructions
applicable to this boiler.
Ensure that main power to the equipment being serviced
is off.
Ensure that the main fuel supply valve to the boiler
is closed.
Take precautions to avoid accidental activation of power
or fuel during service work.
Do not perform service work on any component part
without ensuring safe operation of the heating system.
When replacing parts, use original Viessmann
or Viessmann approved replacement parts.
Please ensure that these instructions are read and
understood before starting any service work. Failure
to comply with these instructions may cause product/
property damage, severe personal injury and/or loss of life.
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
boilers. There are no user serviceable parts on the boiler,
burner or control.
Product Information
The benefits at a glance:
HEutectoplex heat exchanger surface for high operational
reliability and a long service life.
The homogeneous structure of the Eutectoplex special
gray cast iron ensures uniform heat transfer, minimizing
stress fractures and counteracting the formation of
condensate.
Shape and geometry of the cast iron sections, excellent
water flow characteristics and uniform temperature
distribution further increase the level of operational
reliability.
HProblem-free transport into difficult-to-access boiler
rooms due to sectional construction and low weight
of individual sections.
HEfficient and environmentally friendly operation due
to modulated boiler water temperatures.
Combustion efficiency up to:
- oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .88.1%.
- gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85.5%.
Thermal efficiency up to:
- oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88.0%.
- gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85.4%.
HLow-emission combustion through triple-pass design.
VITOROND 200
The modular sectional cast iron design of the Vitorond
200, VD2 allows for problem-free transport into difficult-
to-access boiler rooms and permits easy assembly.
The triple-pass design ensures clean, low-emission
combustion, while the Eutectoplex heat exchanger
surface guarantees economical energy consumption,
high operational reliability and a long service life.
HSimple, quick assembly of the individual cast iron
sections is achieved with a double-groove seal fit
system for the flue gas passageways. The gasket seal
is secured in place by the double groove, and therefore
not subject to mechanical stresses.
HEasy cleaning access facilitated by a hinged (left
or right) swing-open combustion chamber door,
allowing easy access to all three heat exchanger passes
from boiler front, reducing side clearance.
HEconomical and safe operation of the heating system
with Vitotronic or Dekamatik digital boiler and heating
system control.
Tailored to suit every requirement, these controls cover
all known control strategies and applications.
HEconomical and hygienic domestic hot water production
with indirect-fired Vitocell 100 steel or Vitocell 300
stainless steel tanks.
Tanks may be combined into multiple-tank batteries
for applications requiring larger quantities of hot water.
2

Table of Contents
Page
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data
3
Product Information
Standard Equipment
Safety and Installation Requirements ............................2
Working on the equipment ......................................2
Product Information....................................................2
VITOROND 200.....................................................2
The benefits at a glance: ........................................2
Cut-Away Section ......................................................4
Technical Data...........................................................5
Operational Details ...................................................13
Operational Details...............................................13
Requirements are fulfilled via.................................13
Standard Equipment .................................................13
Boiler Control Alternatives .........................................14
For single boiler systems:......................................14
Vitotronic 100 (type GC1B)...................................14
Vitotronic 300 (type GW2)....................................14
Vitotronic 100 (type GC1B)...................................14
Vitotronic 300-K MW1B control panel.....................14
For multi-boiler system (up to 4 boilers): .................14
Vitotronic 100 (type GC1B) and LON module ..........14
Vitotronic 100 (type GC1B) and LON module ..........14
Vitotronic 300-K MW1B control panel ....................14
For single or multiple-boiler installations:.................14
Custom control panels..........................................14
System Design Considerations ...................................15
Burner calibration.................................................15
2-Stage burner ....................................................15
Fully modulating burner ........................................15
Venting ..............................................................15
Chimney .............................................................15
Barometric draft regulator type ..............................16
Barometric draft regulator diameter ........................16
Venting option #2 (Category III).............................16
Combustion air supply ..........................................16
Warranty ............................................................16
System layout .....................................................16
Water quality ......................................................17
Oxygen diffusion barrier underfloor tubing...............17
Burner Alternatives...................................................17
Burner manufacturer ............................................17
Burner/Gas train approval......................................17
Electrical requirements .........................................17
Natural gas pressure ............................................17
Factory pre-wired components ..............................17
Boiler/Burner start-up ...........................................17
Weishaupt Burners, Linkageless.............................18
Riello Burners ......................................................18

Vitorond 200, VD2 Series 320 to 1080 Technical Data
5285 428 - 03
4
Product Information
Cut-Away Section
Eutectoplex heat
exchanger surface
constructed from
homogeneous special
gray cast iron
Product may not be exactly as illustrated.
Third
pass
Vitotronic control-
intelligent and easy to
install, operate and service.
Burner door
insulation
Extremely effective
4 in. (100 mm)
thick insulation
Second
pass
Combustion
chamber
Wide water
passageways

5
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data
Tec
hni
c
al Data
*1
B
oil
e
r Mod
e
l
V
D
2-
3
20
3
80
4
4
0
500
560
6
3
0
700
780
860
950
1
080
Input (oil
)
*1
MBH
(k
W
)
1
255
(
368
)
1
4
90
(
436
)
1
72
6
(
506
)
196
1
(
574
)
21
96
(
643
)
2471
(
724
)
2745
(
804
)
30
5
9
(
8
9
6
)
33
7
3
(9
88
)
3
727
(
10
91
42
36
(
1241
)
I
nput
(g
as
)
*1
MBH
(k
W
)
1300
(
381
)
1544
(
452
)
1
7
8
7
(
523
)
2
03
1
(
5
9
5
)
2275
(
666
)
255
9
(
750
)
2
8
4
3
(
833
)
3
1
68
(9
28
)
3
4
93
(
1023
)
3860
(
1130
)
4
38
7
(
1285
)
O
utput
(
oil
/g
as
)
*
2
MBH
(k
W
)
1
11
0
(
325
)
13
1
9
(
387
)
1
52
6
(
447
)
1
7
3
2
(
508
)
19
41
(
56
9)
21
83
(
640
)
2425
(
711
)
2
699
(
7
91
2
9
7
6
(
872
)
3
2
88
(9
63
)
3
7
38
(
10
9
5
)
C
om
bu
stion
eff
iciency
(
oil)
%
88
.1
88
.
0
88
.
0
8
7.
9
8
7.
8
8
7.
8
8
7.
7
8
7.
6
8
7.
5
8
7.
4
8
7.
3
C
om
bu
stion
eff
iciency
(g
as
)
%
8
5.
5
8
5.
4
8
5.
4
8
5.
3
8
5.2
8
5.1
8
5.1
8
5.
0
8
4.
9
8
4.
8
8
4.
6
T
h
e
rmal
eff
iciency
(
oil)
%
88
.
0
88
.
0
88
.
0
88
.
0
88
.
0
8
7.
9
8
7.
9
8
7.
9
8
7.
9
8
7.
8
8
7.
8
T
h
e
rmal
eff
iciency
(g
as
)
%
8
5.
4
8
5.
4
8
5.
4
8
5.
3
8
5.
3
8
5.
3
8
5.
3
8
5.2
8
5.2
8
5.2
8
5.2
N
u
m
be
r o
f
c
ast
i
ron
sec
t
i
on
s
9
10
11
1
2
13
14
15
16
17
18
19
C
ast iron
b
lo
c
k dim
e
nsion
s
Len
g
t
h
i
n.
(
mm
)
57
(
1450
)
6
2
(
1580
)
6
7
(
1710
)
72
(
1840
)
77
b
(
1
9
70
)
8
2
b
(
2100
)
88
(
2230)
93
(
2360
)
98
(
24
9
0
)
103
(
2620
)
108
(
2750
)
W
id
t
h
i
n.
(
mm
)
4
0
b
(
1030)
4
0
b
(
1030
)
4
0
b
(
1030
)
4
0
b
(
1030
)
4
0
b
(
1030
)
4
0
b
(
1030
)
4
0
b
(
1030
)
4
0
b
(
1030
)
4
0
b
(
1030)
4
0
b
(
1030
)
4
0
b
(
1030
)
He
ight
i
n.
(
mm
)
45
a
(
1150)
45
a
(
1150
)
45
a
(
1150
)
45
a
(
1150
)
45
a
(
1150
)
45
a
(
1150)
45
a
(
1150
)
45
a
(
1150
)
45
a
(
1150
)
45
a
(
1150)
45
a
(
1150
)
C
ast iron s
ec
tion dim
e
nsion
s
F
ront
se
ct
i
on
(
w
i
t
h
c
om
b
u
s
t
i
on
ch
am
be
r
d
oor
)
i
n.
(
mm
)
45
a
x 4
0
b
x 1
0
c
(
1150 x 1030 x 270
)
Int
e
rm
edi
at
e
se
ct
i
on
i
n.
(
mm
)
45
a
x
36
a
x
5
(
1150 x
9
20 x 125
)
Re
ar
se
ct
i
on
(
with
f
lue
g
as co
ll
ar
)
i
n.
(
mm
)
45
a
x
36
a
x
9
(
1150 x
9
20 x 2
9
0
)
Product Information
Technical Data
*1 Input ratings are based on ANSI Z21.13a*CSA 4.9a-2005 - Gas Fired Steam and Hot Water Boilers; CSA B140.7-
05 - 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.
*2 Tested to AHRI BTS-2000 “method to determine efficiency of commercial space heating boilers”.
Note: Dimensions are rounded to the nearest ainch.

Vitorond 200, VD2 Series 320 to 1080 Technical Data
5285 428 - 03
6
Technical Data (continued)
Product Information
Tec
hni
c
al Dat
a
B
oil
e
r Mod
e
l
V
D
2-
3
20
3
80
4
4
0
500
560
6
3
0
700
780
860
950
1
080
D
imensions (with insul. jacket)
T
ota
l
l
en
g
t
h
i
n.
(
mm
)
5
8
c
(
14
9
0
)
63
c
(
1620
)
68
c
(
1750
)
7
3
c
(
1870
)
7
8
c
(
2000
)
83
c
(
2130
)
89
(
2260
)
93
c
(
2380
)
98
c
(
2510
)
10
4
(
2640
)
108
c
(
2760
)
T
ota
l
wid
t
h
w
i
t
h
Vi
totron
i
c
c
ontro
l
(s
id
e
-
mounte
d)
i
n.
(
mm
)
4
9
a
(
1250)
4
9
a
(
1250
)
4
9
a
(
1250
)
4
9
a
(
1250
)
4
9
a
(
1250
)
4
9
a
(
1250
)
4
9
a
(
1250
)
4
9
a
(
1250
)
4
9
a
(
1250
)
4
9
a
(
1250
)
4
9
a
(
1250
)
T
ota
l
h
e
ight
i
n.
(
mm
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
50¾
(
12
9
0
)
W
e
igh
t
Front
se
ct
i
on
(
w
i
t
h
c
om
b
u
s
t
i
on
ch
am
be
r
d
oor
)
lbs
.
(kg)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
52
9
(
240
)
Int
e
rm
edi
at
e
se
ct
i
on
lbs
.
(kg)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
3
5
3
(
160
)
Re
ar
se
ct
i
on
(
with
f
lue
g
as
c
o
ll
ar
)
lbs
.
(kg)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
5
0
7
(
230
)
C
a
s
t
i
ron
he
at
e
xc
h
an
g
er
bl
oc
k
lbs
.
(kg)
3
74
8
(
1700
)
41
00
(
1860
)
445
3
(
2020
)
47
6
2
(
2160
)
5115
(
2320
)
542
3
(
2460
)
577
6
(
2620
)
608
5
(
2760
)
6
4
3
7
(
2
9
20
)
6
7
90
(
3080
)
714
3
(
3240
)
O
verall wei
g
ht
c
omp
l
ete
wi
t
h
i
n
s
u
l
at
i
on
lbs
.
(kg)
39
24
(
1780
)
42
99
(
1
9
50
)
4
6
52
(
2110
)
4
98
2
(
2260
)
5
33
5
(
2420
)
5
666
(
2570
)
60
1
9
(
2730
)
63
4
9
(
2880
)
6
7
0
2
(
3040
)
7
0
7
0
(
3210
)
742
9
(
3370
)
B
oil
e
r wat
e
r
c
on
te
n
t
USG
(L)
6
5
(
247
)
7
3
(
275
)
80
(
303
)
8
7
(
331
)
9
5
(
35
9)
10
2
(
387
)
1
1
0
(
415
)
117
(
443
)
1
24
(
471
)
13
2
(
4
99)
139
(
527
)
M
ax.
b
oil
e
r
t
empera
t
ur
e
*3
(
=
f
ixed hi
g
h
li
m
i
t
)
º
F
(
º
C)
24
8
(
120)
24
8
(
120
)
24
8
(
120
)
24
8
(
120
)
24
8
(
120
)
24
8
(
120
)
24
8
(
120
)
24
8
(
120
)
24
8
(
120
)
24
8
(
120
)
24
8
(
120
)
M
ax. allow.
operat
i
n
g
pressur
e
*
4
p
s
ig
75
75
75
75
75
75
75
75
75
75
75
*3 The maximum supply operating temperature (= max. adjustable high limit) lies approx. 27°F (15°C) below the
fixed high limit setting.
*4 May be less in some Canadian provinces.
Note: Dimensions are rounded to the nearest ainch.

7
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data Product Information
Technical Data (continued)
Tec
hni
c
al Dat
a
B
oil
e
r Mod
e
l
V
D
2-
3
20
3
80
4
4
0
500
560
6
3
0
700
780
860
950
1
080
B
oil
e
r
c
onn
ec
tion
s
Bo
il
er supp
l
y
a
n
d
r
e
turn
i
n
.
4
4
4
4
4
4
4
4
4
4
4
S
afety supply
*5
i
n
.
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
S
afety return
*5
i
n
.
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
D
ra
i
n va
l
v
e
i
n
.
c
c
c
c
c
c
c
c
c
c
c
H
eatin
g
sur
f
ace are
a
F
l
ue
g
as s
id
e
ft
2
(m
2
)
1
7
0
(
15.8
)
196
(
18.2
)
212
(
1
9
.7
)
2
3
2
(
21.5
)
254
(
23.6
)
274
(
25.5
)
2
96
(
27.5
)
3
17
(
2
9
.5
)
339
(
31.5
)
3
5
8
(
33.3
)
380
(
35.3
)
Wat
e
r
side
ft
2
(m
2
)
98
(9
.1
)
109
(
10.1
)
1
2
0
b
(
11.2
)
13
1
(
12.2
)
1
42
(
13.2
)
1
5
3
(
14.2
)
16
5
(
15.3
)
175
(
16.3
)
18
.7
(
17.4
)
198
(
18.4
)
2
09
(
1
9
.4
)
F
lue
g
a
s
*6
-
T
emperature
(g
ross
)
*7
º
F
(
º
C)
3
74
(
1
9
0
)
3
74
(
1
9
0
)
3
74
(
1
9
0
)
3
74
(
1
9
0
)
3
74
(
1
9
0
)
3
74
(
1
9
0
)
3
74
(
1
9
0
)
3
74
(
1
9
0
)
3
74
(
1
9
0)
383
(
1
9
5
)
383
(
1
9
5
)
- F
l
ue
g
as mass
f
low rat
e
lb
s.
/h
(kg
/
h)
130
1
(
5
9
0
)
1
5
98
(
725
)
18
54
(
841
)
2
08
1
(9
44
)
2
33
7
(
1060
)
2
60
1
(
1180
)
2
89
7
(
1314
)
3
1
96
(
1450
)
3
527
(
1600
)
38
25
(
1735
)
4277
(
1
9
40
)
With minimum heatin
g
input and a 2-sta
g
e burner (operation of sta
g
e 1
)
-
T
emperature
º
F
(
º
C)
2
66
(
130
)
2
66
(
130
)
2
66
(
130
)
2
66
(
130
)
2
66
(
130
)
2
66
(
130
)
2
66
(
130
)
2
66
(
130
)
2
66
(
130
)
275
(
135
)
275
(
135
)
- F
l
ue
g
as mass
f
low rat
e
at
m
i
n.
i
nput rate
lb
s.
/h
(kg
/
h)
71
0
(
322
)
8
42
(
382
)
9
74
(
442
)
1
1
09
(
503
)
1
241
(
563
)
1398
(
634
)
1
552
(
704
)
1
7
30
(
785
)
190
7
(
865
)
211
0
(9
57
)
2
39
4
(
1086
)
Bo
il
er stan
db
y
l
o
ss
b
a
sed
on
max.
h
eat
i
n
g
i
nput an
d
h
ot
w
ater supp
l
y an
d
return temps. o
f
1
67
/
140°F
(
75 / 60 °
C)
%
0
.4
0
0
.
38
0
.
35
0
.
3
2
0
.
3
1
0
.2
9
0
.2
8
0
.2
7
0
.2
6
0
.2
5
0
.2
4
V
ent pipe collar
o
ut
e
r
7
*
8
i
n.
(
mm
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
1
2
(
300
)
F
lue
g
as
re
s
i
stan
ce
- at upper en
d
of
rated inpu
t
“
w.c.
(
m
b
ar
)
0
.2
0
(
0.5
)
0
.
3
5
(
0.
9)
0
.51
1
.3
)
0
.
6
7
(
1.7
)
0
.75
(
1.
9)
0
.
83
(
2.1
)
1
.1
0
(
2.8
)
1
.
54
(
3.
9)
1
.
93
(
4.
9)
1
.
77
(
4.5
)
2.2
8
(
5.8
)
Required
f
lue
d
ra
f
t
C
ate
g
ory
I
P
a
“
w.c
.
0
(
0
)
0
(
0
)
0
(
0
)
0
(
0
)
0
(
0
)
0
(
0
)
0
(
0
)
0
(
0
)
0
(
0
)
0
(
0
)
0
(
0
)
P
os
i
t
i
ve pressur
e
C
ate
g
ory II
I
P
a
“
w.c
.
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
2
0
(
0.08
)
*5 Connections for boiler connection kit (standard equipment).
*6 Combustion results are based on 13.0% CO2with fuel oil #2 and 10% CO2with natural gas, as well as a system
supply temperature of 167°F (75°C), and a system return temperature of 140°F (60°C).
*7 Measured flue gas temperature with a combustion air temperature of 68° F (20° C) and a boiler water temperature
of 176°F (80°C).
*8 Vent pipe collar diameter does not automatically indicate vent/chimney size. See page 15 for details.
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.

Vitorond 200, VD2 Series 320 to 1080 Technical Data
5285 428 - 03
8
Product Information
Technical Data (continued)
Burner Installation
The burner must be fitted to the burner plate;
installations direct to the boiler door are not feasible.
Viessmann supplies a pre-drilled end burner plate
in accordance with the supplied burner dimensions.
Note: For mounting burners with blast tube diameters
of 7 to 11 in. (180 to 280 mm), the door insulation
(refractory material) can be cut to the required size.
The blast tube must protrude from the thermal
insulation on the boiler door.
Legend
BD Boiler drain ¾ in.
BWR Boiler water return
BWS Boiler water supply
CO Clean-out opening
FGC Flue gas collar
SG Sight glass
a 10½ in. (270 mm)
b 5 in. (125 mm)
c 11½ in. (290 mm)
d 5½ in. (140 mm)
e 4 in. (100 mm)
CAUTION
Viessmann North America offers the side-mounted
control option only. Refer to the side-mounted control
dimension on page 6.
Total length
Length
Total height
Total width
Width

9
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data Product Information
Technical Data (continued)
Legend
TCP Additional temperature control port ½ in.
AQW Aquastat well tapping ½ in.
BWR Boiler water return
BWS Boiler water supply
ACP Additional control port ½ in. (pressure gage)
S1Return temperature sensor port
S2Boiler pump temperature sensor ½ in.
RWE Return water elevation 2½ in.
SR Safety return - connection to precharged membrane
expansion tank
SS Safety supply - connection to pressure relief valve
Low temperature protection
Low temperature protection packages from Viessmann
are required for Rondomat boilers. A 30% Boiler Flow
Package is typically utilized in single-boiler installations.
100% Boiler Flow Packages are utilized in single- and
multiple-boiler installations.
Selection of the correct package depends on the
characteristics of the heating system, and the degree
of control necessary to protect the boiler. Contact
Viessmann for assistance.
Boiler Connection Kit (Standard Equipment)
consisting of boiler supply and return header
Boiler return header
Boiler supply header

Vitorond 200, VD2 Series 320 to 1080 Technical Data
5285 428 - 03
10
Product Information
Technical Data (continued)
The 30% boiler flow package consists of:
H1 Boiler pump,
H2 ball valves
H1 flow check valve
Legend
A Low water cut-off (standard equipment)
B Boiler shunt pump for return water temperature
elevation
C Flow check valve
D Location of Honeywell aquastat (to control boiler
pump)
E Location of aJ sensor (installed in stainless steel well)
All boiler piping field supplied.
IMPORTANT
It is essential that the designer review the sizing of all
pumps including the boiler pump normally supplied with
the 100% Boiler Flow Package to verify that all pumps
in the system operate correctly. The responsibility for the
distribution system design, including all circulation pumps,
remains with the system designer.
The 100% boiler flow package consists of:
H1 3-Way return water mixing valve
H1 actuator
H1 circulating pump
Legend
A Boiler pump
B 3-Way mixing valve
C Low water cut-off (standard equipment)
D Location of aJ sensor (installed in stainless steel well)
All boiler piping field supplied.
100% Boiler Flow Package
30% Boiler Flow Package
Boiler supply
header
Boiler supply
connection
Boiler return
connection
Boiler return
header
Boiler supply
connection
Boiler supply
header
Boiler return
header Boiler return
connection

11
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data
39bin.
(1000 mm)
20 in.
(500 mm)
8 in. (200 mm)
d
c
20 in.
(500 mm)
Product Information
Technical Data (continued)
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.
Boiler
model
VD2-
320
VD2-
380
VD2-
440
VD2-
500
VD2-
560
VD2-
630
VD2-
700
VD2-
780
VD2-
860
VD2-
950
VD2-
1080
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)
Front clearances (dimension “c” above) will allow for easy
removal of flue gas turbulator inserts, as well as for full
insertion of bristle brush for heat exchanger cleaning.
IMPORTANT
Minimum side clearance of 20 in. (500 mm) must
be maintained for side-mounted Vitotronic controls.
Recommended Minimum Clearances
Boiler
model
VD2-
320
VD2-
380
VD2-
440
VD2-
500
VD2-
560
VD2-
630
VD2-
700
VD2-
780
VD2-
860
VD2-
950
VD2-
1080
c
in. (mm)
65a
(1660)
70b
(1790)
75b
(1920)
80c
(2050)
85c
(2180)
91
(2310)
96
(2440)
101a
(2570)
106a
(2700)
111b
(2830)
116b
(2960)
d Dependent on burner model size
Note: Inch dimensions rounded to the nearest ¼ in.
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).
Boiler Base
>=4 in. (100 mm)
35bin. (900 mm)
43ain. (1100 mm)
2 in. (50 mm)
4 in.
(100 mm)
4 in.
(100 mm)
5bin.
(140 mm)
ab
Note: Inch dimensions rounded to the nearest ¼ in.

Vitorond 200, VD2 Series 320 to 1080 Technical Data
5285 428 - 03
12
Product Information
Technical Data (continued)
Waterside Flow
The Vitorond 200 boiler is designed for closed loop,
forced circulation, hot water heating systems only.
The recommended water flow rate through the Vitorond
200 is based on a temperature difference of between
20° F and 40° F (11° C and 22° C) (see table below).
When a balancing valve is used for proper balancing
and water flow through the boiler, the valve should be
installed 5 pipe diameters from any fittings and 10 pipe
diameters from circulation pumps to allow for laminar
flow.
The consulting engineer or contractor should review
the system design if more balancing valves are required
to properly balance the system.
Viessmann can supply TA (Victaulic) balancing valves
upon request. The balancing should be carried out by
a certified balancing firm prior to boiler start-up. Please
contact Viessmann for your closest certified balancing
firm.
Recommended Flow Rates
Boiler model VD2- 320 380 440 500 560 630 700 780 860 950 1080
20° F ∆t GPM 109 130 150 171 191 215 239 266 293 324 369
40° F ∆t GPM 55 65 75 85 96 108 119 133 147 162 184
11° C ∆t L/sec. 6.9 8.2 9.5 10.8 12.1 13.6 15.1 16.8 18.5 20 23.2
22° C ∆t L/sec. 3.4 4.1 4.7 5.4 6.0 6.8 7.5 8.4 .9.3 10.2 11.6
∆t = temperature difference
Legend
A VD2-320, VD2-380 and VD2-440
B VD2-500, VD2-560 and VD2-630
C VD2-700, VD2-780 and VD2-860
D VD2-950 and VD2-1080
Note: This boiler does not require a flow switch.
Pressure Drop
Flow Rate

13
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data Product Information
Operational Details
Operational Details
Requirements are fulfilled via...
Heating water volume flow 30% at heating output a bypass pump (shunt pump
or boiler circulation pump)
Boiler return water
temperature (minimum)
For operation with modulating boiler water temperatures:
- Oil-fired 104°F (40°C)
- Gas-fired 127°F (53°C)
For operation with elevated boiler water temperatures:
- Oil-fired 127°F (53°C)
- Gas-fired 127°F (53°C)
an effective system of return
temperature elevation
Minimum boiler water
temperature
For operation with modulating boiler water temperatures:
- Oil-fired 122°F (50°C)
- Gas-fired 140°F (60°C)
For operation with elevated boiler water temperatures:
- Oil-fired 140°F (60°C)
- Gas-fired 149°F (65°C)
The Viessmann Vitotronic
control system
2-Stage burner operation For operation with modulating boiler water temperatures:
first stage 60% of heating output
For operation with elevated boiler water temperatures:
No minimum heating input applies
Burner calibration (site)
Modulating burner operation For elevated boiler water temperatures only:
- Oil-fired 140°F (60°C)
- Gas-fired 149°F (65°C)
- min. return water temperature 127°F (53°C)
The Viessmann or Vitotronic
control system
Setback operation Minimum boiler water temperature:
- Oil-fired 122°F (50°C)
- Gas-fired 140°F (60°C)
For multiple-boiler installations:
- Lead boiler as above
- Lag boiler(s) is/are deactivated
The Viessmann control
included in the standard
equipment
Weekend setback See Setback operation See Setback operation
Note: Boiler controls and burners are purchased
separately. Please see Price List for details.
HThe cast iron sections are delivered as individual units
on skids.
HThe combustion chamber door is mounted on the front
section.
HThe flue gas collector, with two inspection opening
covers (fastened with screws), is mounted on the rear
section.
1 skid containing supply and return headers
3 cartons containing insulation panels
1 carton containing the boiler control
1 carton with miscellaneous boiler assembly components
IMPORTANT
Ensure specific regional, provincial, or state requirements,
such as fuel train and additional safety control
requirements etc., are known before the product order is
placed, to determine proper burner selection and pricing.
Standard Equipment
Standard equipment includes:
- Supply/Return header (c/w left/right connections)
- Low water cut-off
- Thermometer, pressure gage, air vent, pressure relief
valve, and boiler drain valve

Vitorond 200, VD2 Series 320 to 1080 Technical Data
5285 428 - 03
14
Standard Equipment
Boiler Control Alternatives
For single boiler systems:
Hwithout Vitocontrol control panel
Vitotronic 100 (GC1/GC1B)
for constant boiler water temperature or outdoor reset
mode in conjunction with an external control unit (BMS).
Vitotronic 300 (GW2/GW2B)
for modulating boiler water temperature with mixing
valve control for a maximum of two heating circuits
with mixing valve.
Hwith Vitocontrol control panel
Vitotronic 100 (GC1/GC1B)
and
Vitocontrol-S MW1/Vitotronic 300-K MW1B control panel
for outdoor reset mode and mixing valve control for
a maximum of 2 heating circuits with mixing valve
and additional Vitotronic 200-H, type HK1M/HK1B for
additional up to 3 heating circuits with mixing valve.
For multi-boiler system (up to 4 boilers):
Hwithout Vitocontrol control panel
Vitotronic 100 (GC1/GC1B) and LON module
for modulating boiler water temperature in conjunction
with an external control unit (BMS).
Hwith Vitocontrol control panel
Vitotronic 100 (GC1/GC1B) and LON module
for modulating boiler water temperature for each boiler
of the multi-boiler system and
Vitotronic 300-K MW1S/Vitotronic 300-K MW1B
control panel
with Vitotronic 300-K MW1S/Vitotronic 300-K MW1B
for multi-boiler system, outdoor reset mode and mixing
valve control for a maximum of 2 heating circuits with
mixing valve and additional Vitotronic 200-H, type
HK1S/HK3S/HK1B for additional heating circuits with
mixing valve.
For single or multiple-boiler installations:
Custom control panels
Custom control panels for residential or commercial
applications are designed and manufactured by Viessmann
to suit any customer’s specific requirements. Custom
control panels can have features such as pool heating,
hot tub heating, snow melting, telephone tie-in,
integration with Building Management Systems, as well
as several other functions. Please inquire.
The control of the Vitorond 200, VD2 boiler can be
mounted either on the left- or right-hand side of the boiler.
Please specify control location at the time of order.

15
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data Standard Equipment
Burner calibration
With 2-stage and fully modulating burners, ensure
that the chimney is compatible with the lower flue gas
temperatures associated with partial load conditions set
on the burner.
2-Stage burner
When used with the or Vitotronic control, the following
minimum heating outputs are applicable to protect the
boiler:
- 60% of outputs stated in the Technical
Data table on page 5.
Fully modulating burner
The minimum boiler water temperature is:
- 140°F (60°C) with oil,
- 149°F (65°C) with natural gas.
Set the return temperature elevation system to maintain
a minimum value of 127°F (53°C).
CAUTION
The Vitorond 200, VD2 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.
We recommend consulting a reputable chimney installer
for advice in project-specific circumstances.
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.
Venting
The Vitorond 200, VD2 boiler is approved as a Category I
appliance and must be vented accordingly.
System Design Considerations

Vitorond 200, VD2 Series 320 to 1080 Technical Data
5285 428 - 03
16
Standard Equipment
System Design Considerations (continued)
Combustion air supply
The boiler must not be located in areas or rooms where
chemicals containing chlorine, bromine, fluorine,
or other corrosive chemicals are stored. Examples include
refrigerants, bleach, paint, paint thinner, hair spray,
cleaning solvents, water softener salt, etc.
The combustion air must not be contaminated with any
amount of the above mentioned chemicals.
Boiler should never be installed in areas where excessive
dust, high humidity, or risk of frost exist. Ensure adequate
ventilation and supply of fresh combustion air.
Consult Viessmann with uncertainties in regard
to a suitable boiler installation location.
This boiler/burner unit needs clean fresh air for safe
operation. Provisions for combustion and ventilation
air must be made at time of installation. For oil-fired
boilers, use the “Installation Code for Oil Burning
Equipment CAN/CSA-B139” (Canada), or NFPA 31 (USA).
For gas or propane installations, use the “Natural Gas
Installation Code CAN/CSA-B149.1 or B149.2” (Canada),
or “National Fuel Gas Code ANSI Z223.1” (USA), and/or
provisions of local codes.
The sizing methods outlined in the above codes should
be used when installing a round duct to supply
combustion air from the outside.
Warranty
Our warranty does not cover damages resulting from
the following:
- Corrosion caused by flue gas condensation due
to low boiler water and/or return water temperatures.
- Operation with contaminated fill and supplementary
feed water.
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,
Viessmann recommends that the radiation and domestic
hot water production in the system be designed for
a 158°F (70°C) boiler supply water temperature.
Barometric draft regulator
Barometric draft regulator type
For natural gas or propane applications, use a double-
acting 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. (356 mm) 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 size of the flue gas 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 input.
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.

17
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data Standard Equipment
System Design Considerations (continued)
Water quality
Treatment for boiler feed water should be considered
in areas of known problems, such as where a high mineral
content and hardness exist. In areas where freezing might
occur, an antifreeze may be added to the system water
to protect the system.
Please adhere to the specifications given by the antifreeze
manufacturer. Do not use automotive silicate-based
antifreeze. Please observe that an antifreeze/water
mixture may require a backflow preventer within the
automatic water feed and influence components such
as diaphragm expansion tanks, radiation, etc.
A 40% antifreeze content will provide freeze-up
protection to -10°F (-23°C). Do not use antifreeze other
than specifically made for hot water heating systems.
System also may contain components which might be
negatively affected by antifreeze. Check total system
frequently when filled with antifreeze.
Follow the instructions of antifreeze manufacturer.
Factory pre-wired components
Custom factory pre-wiring by Viessmann ensures optimal
functionality, compliance with regional requirements,
and ease of installation in the field. Pricing provided
by Viessmann includes all necessary hardware items
such as junction panel, burner power supply, boiler
door safety switch (where necessary), and all essential
pressure switches, as well as interconnection with conduit
between control and burner.
Electrical drawings provided upon product delivery.
Boiler/Burner start-up
Vitorond 200, VD2 boilers with Weishaupt burners require
start-up by Viessmann.
Please inquire to obtain details regarding the necessary
prerequisites of boiler/burner start-up procedures.
Burner manufacturer
Weishaupt or Riello
Burner/Gas train approval
Standard approvals are CSA (for Canada) and UL (for U.S.).
IRI and FM approved equipment is also available - please
inquire.
Electrical requirements
Weishaupt WG, WL, L, RL, G, GL and WM-G(L) RGL
Series burners listed on page 18 are available in 120 VAC
single-phase, 208 VAC three-phase, 460 VAC three-phase,
or 575 VAC three-phase, all in 60 Hz configuration.
Size 7 burners are not available in 120 VAC single-phase
configuration. It is generally acceptable to use voltages
within ten percent of the supply voltage. Available voltage
inside boiler room must be provided at time of order.
Ensure appropriate disconnect means and overcurrent
protection.
Natural gas pressure
Natural gas pressures and heating values as provided by
the gas utilities vary greatly across North America. Select
the appropriate gas train accordingly. Low pressure gas
trains have a maximum input of 14 ”w.c.; high pressure
gas trains have a maximum pressure of 5 psig. Minimum
gas pressures apply - please inquire. Gas pressures and
heating values at site must be provided at time of order.
IMPORTANT
To minimize delivery lead times, please ensure that
critical technical information is provided at time of order.
Viessmann will not process an order without site-specific
information regarding available voltage and gas pressure.
In addition Viessmann recommends that gas pressure
information be provided in writing by the local gas utility.
Oxygen diffusion barrier underfloor tubing
The boiler warranty does not cover leaks resulting from
corrosion caused by the use of underfloor plastic tubing
without an oxygen diffusion barrier. Such systems
must have the tubing without oxygen diffusion barrier
separated from the boiler with a heat exchanger.
Viessmann recommends the use of underfloor plastic
tubing with an oxygen diffusion barrier.
Burner Alternatives

5285 428 - 03
18
Standard Equipment
Burner Alternatives (continued)
Weishaupt Burners, Linkageless *1
Boiler model VD2- 320 380 440 500 560 630 700 780 860 950 1080
No. 2 oil-fired
2-stage
Model WL40 WM-L10/3 WM-L10/4 L7
No. 2 oil-fired
fully modulating
Model WM-L10/2 WM-L10/3 RL5 RL7
Natural gas-fired
2-stage
Model WG40-LN WM-
G10/2
G10/3-LN WM-G10/4 G7-LN
Natural gas-fired
fully modulating
Model WG40-LN WM-
G10/2
G10/3-LN WM-G10/4 G7-LN
Propane gas-fired *2
2-stage
Model WG40-LN WM-
G10/2
WM-G10/3 WM-G10/4 G7
Propane gas-fired *2
fully modulating
Model WG40-LN WM-
G10/2
WM-G10/3 WM-G10/4 G7
Combination
fully modulating NG,
2-stage oil
Model WM-
GL10/1
WM-GL10/2 WM-G10/3 WM-GL20/2
Combination
fully modulating NG,
fully modulating oil
Model WM-GL10/2 WM-GL10/3 WM-GL20/2
Combination
fully modulating NG,
fully modulating L.P.
Model WM-
GL10/1
WM-GL10/2 WM-GL10/3 WM-GL10/4 WM-GL20/2
Riello Burners
Boiler model VD2- 320 380 440 500 560 630 700 780 860 950 1080
No. 2 oil-fired
2-stage
Model RL28/2 RL38/2 RL50/2 RL50/2 RL100/2
No. 2 oil-fired
fully modulating
Model RL28/M RL38/M RL50/M RL70/M RL100/M
Natural gas-fired
fully modulating
Model RS38/M RS50/M RS70/M RS100/M
Propane gas-fired
fully modulating
Model RS38/M RS50/M RS70/M RS100/M
Combination
2-stage NG/2-stage oil
full mod. NG/2-stage oil
Model RLS38 RLS50 - - -
- - RLS70 RLS100 RLS130
Natural gas-fired
fully modulating, low NOx
Model RS45/M LN RS68/M LN RS120/M LN
*1LN behind burner model no. indicates low NOx burner head is standard equipment.
*2Please contact Viessmann to quote a propane burner gas train, where less than 14” w.c. gas pressure exists.
Note: The burner charts above have been selected based on a project elevation of <2000 ft. (610 m) ASL.
If the project elevation is >2000 ft. (610 m) ASL, please contact your Viessmann technical representative for
assistance in selecting the boiler/burner combination.

19
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data

Technical information subject to change without notice. Printed on environmentally friendly
(recycled and recyclable) paper.
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data