Viessmann VD2-320 - Boiler Connections; Heating Surface Area; Flue Gas; Vent Pipe Collar

41
5285 429 - 03
Vitorond 200, VD2 Series 320 to 1080 Installation
Appendix
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% CO
2
with fuel oil #2 and 10% CO
2
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).
*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 13 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.