Additional Information
75
Technical Data
(continued)
Boiler Model
Model No. WB2B-
80
105*
A
Dimensions
Overall depth
Overall width
Overall height
Height with flue gas elbow
(accessory)
inches
mm
inches
mm
inches
mm
inches
mm
21
530
19
480
33½
850
47¼
*9
1200
21
530
19
480
33½
850
47¼
*9
1200
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
95/35
91/33
149/65
104/40
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
6.6-7.9
25-30
9.5-10.5
35-40
Condensate connection
*7
hose
nozzle
∅
in
1
1
Boiler flue gas connection
*8
∅
in/mm
4
3
/
8
/110
4
3
/
8
/110
Combustion air supply
connection (coaxial)
*8
outer
∅
in/mm
6/150
6/150
*
A
For high altitude installations (5,000 - 10,000 ft.), the input for model WB2B 105 will have an altitude de-ration of 14% for 5,000 ft.
and 28% for 10,000 ft. (average of 2.8% / 1,000 ft.).
*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 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.
*9
Add 2½” / 65 mm for coaxial vent pipe transition adaptor.
"
For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.
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