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Vitodens 222-F, B2TB 19, 35, 68, 125 Installation
Technical Data
Boiler Model No. 222-F B2TB
Dimensions
Overall depth
Overall width
Overall height *12
Flue gas *6
Temperature (at boiler return temperature of 86ºF (30ºC)
- at rated full load
- at rated partial load
Temperature (at boiler return temperature of 140ºF (60ºC)
Average condensate flow rate *7
with natural gas and T
/T
S
Condensate connection *8
Boiler flue gas connection *9
Combustion air supply connection (coaxial)
Sound Rating
- at maximum input
- at minimum input
DHW storage tank
DHW storage tank capacity
Temperature and pressure relief valve (factory installed)
Max. allowable operating pressure (DHW)
Storage tank test pressure
Continuous DHW output
Continuous DHW output draw rate *10
Max. DHW draw rate (over 10 min. period) *10
Standby losses *11
*6
Measured flue gas temperature with a combustion air temperature of 68°F (20°C).
*7
Based on typical boiler cycles, including partial load conditions.
*8
Requires 1 inch (25 mm) tubing. See the Installation Instructions of the Vitodens 222-F, B2TB for details.
*9
For side wall vent installations (coaxial system):
Do not exceed max. equivalent length specified in the Installation Instructions of the Vitodens 222-F, B2TB
Venting System.
Do not attempt to common-vent Vitodens 222-F, B2TB with any other appliance.
Side wall coaxial vent installation must include Viessmann protective screen!
For details refer to the Installation Instructions for the Vitodens 222-F, B2TB Venting System.
*10 Based on a temperature rise of 70ºF (21ºC), 50ºF to 120ºF (10ºC to 49ºC).
*11 Measured values are based on room temperature of 68ºF (20ºC) and a domestic hot water temperature of 149ºF (65ºC).
*12 Add 1f in. (40 mm) when using the optional accessory seismic bracket kit.
For information regarding other Viessmann System Technology componentry, please reference documentation
of respective product.
Note: For high altitude installation at 10,000 ft. (3050 m) the input for 222-F, B2TB 19, 35, 68, 125 will have an
altitude de-ration of 21%.
(continued)
=122/86ºF (50/30ºC)
R
inches
(mm)
inches
(mm)
inches
(mm)
ºF (ºC)
ºF (ºC)
ºF (ºC)
USG/h
(L/h)
hose nozzle
Ø in.
Ø in. (mm)
outer Ø
in. (mm)
dB
dB
USG (L)
26.5 (100)
psig/temp
150/210ºF (99ºC)
psig
psig
MBH (kW)
GPM (L/min.)
USG (L)
BTU/24h
BTU/h
º F/h
Additional Information
19, 68
23b
(595)
23f
(600)
64
(1625)
113 (45)
113 (45)
95 (35)
154 (68)
154 (68)
2.6-3.4
(10 - 12)
(15 - 17)
¾-
1"
2
/
" (60)
2
3
8
4" (100)
4" (100)
41
35
26.5 (100)
150/210ºF (99ºC)
150
300
61 (17.8)
114 (33.4)
1.8 (6.6)
3.3 (12.3)
44 (166)
60 (227)
4435
184
0.8
35, 125
23b
(595)
23f
(600)
64
(1625)
95 (35)
4-4.5
¾-
1"
/
" (60)
3
8
51
36
150
300
4435
184
0.8
57
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