Technical data

Additional Information
75
Technical Data (continued)
Boiler Model Model No. WB2B- 19 26 35
Dimensions
Overall depth
Overall width
Overall height
Height with flue gas elbow
(accessory)
inches
mm
inches
mm
inches
mm
inches
mm
14
360
17¾
450
33½
850
44
1116
14
360
17¾
450
33½
850
44
1116
14
360
17¾
450
33½
850
44
1116
Flue gas
*5
Temperature (at boiler return temperature of 86ºF /
30ºC)
– at rated full load
– at rated partial load
Temperature (at boiler return temperature of 140ºF /
60ºC)
ºF/ºC
ºF/ºC
ºF/ºC
113/45
95/35
154/68
113/45
95/35
158/70
113/45
95/35
158/70
Average condensate
flow rate
*6
with natural gas and
– T
S
/T
R
=104/86ºF / 40/30ºC USG/day
ltr/day
2.6-3.4
10-12
2.9-3.4
11-13
4-4.5
15-17
Condensate connection
*7
hose nozzle
∅ in
1 1 1
Boiler flue gas connection
*8
∅
in/mm
2
3
/
8
/60 2
3
/
8
/60 2
3
/
8
/60
Combustion air supply
connection (coaxial)
*8
outer
∅ in/mm 4/100 4/100 4/100
*5
Measured flue gas temperature with a combustion air temperature of 68°F / 20°C.
*6
Based on typical boiler cycles, including partial load conditions.
*7
Requires 1” / 25 mm tubing. See Vitodens 200-W, WB2B Installation Instructions for details.
*8
For side wall vent installations (coaxial system):
Do not exceed max. equivalent length specified in the Installation Instructions of the Vitodens 200-W, WB2B Venting System.
A maximum of five elbows may be installed in the vent system.
Do not attempt to common-vent Vitodens 200-W, WB2B with any other appliance.
Venting material to be supplied by Viessmann only; side wall vent installation must include Viessmann protective screen!
For details refer to the Installation Instructions for the Vitodens 200-W, WB2B Venting System.
" For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.
5418 911 v1.6