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Boiler Model
Dimensions
Overall depth
Overall width
Overall height
Height with flue gas elbow
(accessory)
Gas supply connection
Standby instantaneous DHW
plate heat exchanger
*5
of Combi boiler
Water content
DHW side
Inhalt
heating water
side
Connections DHW and DCW
Max. operating pressure
*6
(DHW side)
DHW supply temp. range
Continuous draw rate
with a temperature increase
from 50 to 113 ºF/10 to 45 ºC
Draw rate range
*7
Flue gas
Temperature (at boiler return
temperature of 86 ºF/30 ºC)
– at rated full load
– at rated partial load
Temperature (at boiler return
temperature of 140 ºF/60 ºC)
Average condensate
flow rate
with natural gas and
– T
/T
=167/140ºF/75/60 ºC
S
R
– T
/T
=104/86ºF/40/30 ºC
S
R
*8
Condensate connection
*9
Boiler flue gas connection
Combustion air supply
*9
connection
*5
Minimum pressure for domestic cold water connection 1 bar/15 psig.
*6
See DHW sizing chart on page 11 in this manual.
*7
Measured flue gas temperature with a combustion air temperature of 68 °F/20 °C.
*8
Requires 1"/25.4 mm tubing. See Vitodens 200 Installation Instructions for details.
*9
For side wall vent installations:
Do not exceed max. equivalent length of 20 ft./6 m as stated in the Installation Instructions of the Vitodens 200 Direct Vent System.
A maximum of five elbows may be installed in the vent system.
Do not attempt to common-vent Vitodens 200 with any other appliance.
Venting material to be supplied by Viessmann only; side wall vent installation must include Viessmann protective screen!
For more details refer to the venting section in this manual starting on page 17 and/or the Installation Instructions for the Vitodens 200
Direct Vent System.
"For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.
Combi Series
Model No.
WB2 6-24C
inches
16
mm
406
inches
19¾
mm
500
inches
35½
mm
900
inches
44
mm
1116
NPTF "
½
USG/ltr
0.26/1.00
USG/ltr
0.18/0.70
NPTF "
½
psig/bar
150/10
ºF/ºC
100-135/38-57
GPH
156
ltr/h
590
GPM
0.8-2.1
ltr/min
3-8
ºF/ºC
113/45
ºF/ºC
95/35
ºF/ºC
158/70
USG/day
2-2.6
ltr/day
8-10
USG/day
2.9-3.4
ltr/day
11-13
hose
nozzle
Æ in
1
Æ
in/mm
3¼/80
outer
Æ in/mm
5/125
WB2 6-24
WB2 8-32
16
16
406
406
19¾
19¾
500
500
35½
35½
900
900
44
44
1116
1116
½
½
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
113/45
113/45
95/35
95/35
158/70
158/70
2-2.6
2.6-3
8-10
10-12
2.9-3.4
4-4.5
11-13
15-17
1
1
3¼/80
3¼/80
5/125
5/125
Vitodens 200
Standard heating boiler
WB2 11-44
WB2 15-60
21¼
21¼
540
540
23½
23½
600
600
35½
35½
900
900
47¼
47¼
1200
1200
¾
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
95/35
104/40
91/33
95/35
149/65
158/70
2.9-4
4.8-5.8
11-15
18-22
3.7-5
6-7.4
14-19
23-28
1
4¼/110
4¼/110
6/150
6/150
¾
1
5
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