Viessmann Vitodens 222-F B2TB, Application Manual

Page: 13 / 52

9
Boiler Model No. 222-F B2TB 19 35
Natural Gas / Liquid Propane Gas
CSA input
CSA output/DOE *1
heating capacity
Net AHRI rating *2
MBH
kW
MBH
kW
MBH
kW
12-68
3.5-20
11-64
3.2-19
55
16
19-125
5.5-37
18-117
5.1-34
102
30
Heat exchanger surface area ft.
2
m
2
12.96
1.2
12.96
1.2
Min. gas supply pressure
Natural gas
Liquid propane gas “w.c.
“w.c. 4
10
4
10
Max. gas supply pressure *3
Natural gas
Liquid propane gas “w.c.
“w.c. 14
14 14
14
A.F.U.E. 5 9 5 9 %
Weight
(including installation fittings) lbs
(kg)
278
(126)
278
(126)
Boiler water content USG
(L)
1.02
(3.88)
1.02
(3.88)
Boiler max. flow rate *4 GPM
(L/h)
6.2
(1400)
6.2
(1400)
Expansion tank *5
(for heating system side)
Precharge pressure
Capacity
psig
USG
(L)
12
3.2
(12)
12
3.2
(12)
Max. operating pressure
at 210ºF (99ºC)
psig
bar
45
3
45
3
Boiler water temperature
- Adjustable high limit (AHL) range
space heating (steady state)
- Fixed high limit (FHL)
ºF
(ºC)
ºF (ºC)
68 to 165
(20 to 74)
210 (99)
68 to 165
(20 to 74)
210 (99)
Boiler connections
Boiler heating supply and return
Pressure relief valve
Drain valve
Boiler supply/return for
indirect-fired DHW storage tank
(field supplied)
Gas valve connection
NPTM”
NPTF”
(male
thread)
NPT”
NPTF”
¾”
¾”
¾”
¾”
¾”
¾”
¾”
¾”
¾”
¾”
*1 Output based on 140ºF (60ºC), 120ºF (49ºC) system supply/return temperature.
*2 Net AHRI rating based on piping and pick-up allowance of 1.15.
*3 If the gas supply pressure exceeds the maximum gas supply pressure value, a separate gas pressure regulator
must be installed upstream of the heating system.
*4 See “Waterside Flow” starting on page 8 in this manual.
*5 Determine the required size of the expansion tank to be installed in the heating system.
If the integral expansion tank is insufficient, install a suitably sized expansion tank on site.
Technical Data
Vitodens 222-F, B2TB 19 and 35 Technical Data