7
5285 428 - 03
Vitorond 200, VD2 Series 320 to 1080 Technical Data
Product Information
Technical Data
(continued)
Technical Data
Boiler Model
VD2-
320
380
440
500
560
630
700
780
860
950
1080
Boiler connections
Boiler supply
and return
in.
4
4
4
4
4
4
4
4
4
4
4
Safety supply
*5
in.
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
Safety return
*5
in.
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
2
b
Drain valve
in.
c
c
c
c
c
c
c
c
c
c
c
Heating surface area
Flue gas side
ft
2
(m
2
)
170
(15.8)
196
(18.2)
212
(19.7)
232
(21.5)
254
(23.6)
274
(25.5)
296
(27.5)
317
(29.5)
339
(31.5)
358
(33.3)
380
(35.3)
Water side
ft
2
(m
2
)
98
(9.1)
109
(10.1)
120
b
(11.2)
131
(12.2)
142
(13.2)
153
(14.2)
165
(15.3)
175
(16.3)
18.7
(17.4)
198
(18.4)
209
(19.4)
Flue gas
*6
- Temperature
(gross)
*7
ºF
(ºC)
374
(190)
374
(190)
374
(190)
374
(190)
374
(190)
374
(190)
374
(190)
374
(190)
374
(190)
383
(195)
383
(195)
- Flue gas mass
flow rate
lbs./h
(kg/h)
1301
(590)
1598
(725)
1854
(841)
2081
(944)
2337
(1060)
2601
(1180)
2897
(1314)
3196
(1450)
3527
(1600)
3825
(1735)
4277
(1940)
With minimum heating input and a 2-stage burner (operation of stage 1)
- Temperature
ºF
(ºC)
266
(130)
266
(130)
266
(130)
266
(130)
266
(130)
266
(130)
266
(130)
266
(130)
266
(130)
275
(135)
275
(135)
- Flue gas mass
flow rate at
min. input rate
lbs./h
(kg/h)
710
(322)
842
(382)
974
(442)
1109
(503)
1241
(563)
1398
(634)
1552
(704)
1730
(785)
1907
(865)
2110
(957)
2394
(1086)
Boiler standby
loss based on
max. heating
input and hot
water supply and
return temps. of
167 / 140°F
(75 / 60 °C)
%
0.40
0.38
0.35
0.32
0.31
0.29
0.28
0.27
0.26
0.25
0.24
Vent pipe collar
outer
7
*8
in.
(mm)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
12
(300)
Flue gas
resistance
- at upper end
of rated input
“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)
Required flue
draft
Category I
Pa
“w.c.
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
Positive pressure
Category III
Pa
“w.c.
20
(0.08)
20
(0.08)
20
(0.08)
20
(0.08)
20
(0.08)
20
(0.08)
20
(0.08)
20
(0.08)
20
(0.08)
20
(0.08)
20
(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 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.
