Viessmann Vitodens 222-F, B2TA Technical Manual
Technical Data Manual
Model Nos. and pricing: see Price List
For Natural Gas and Liquid Propane Gas
Gas-fired floor-mounted condensing DHW combi-boiler
12 to 125 MBH (3.5 to 37 kW)
VITODENSr 222-F
Product may not be exactly as shown
Vitodens 222-F
B2TA Series 19 and 35
Gas-fired floor-mounted condensing DHW
combi-boiler with modulating MatriX
cylinder burner and DHW stainless steel
tank. For room air independent operation
or room air dependent operation.
5683 719 - 05 03/2015
H
Product Information
Vitodens 222-F
Vitodens 222-F, B2TA 19 and 35 Technical Data
The Vitodens 222-F storage combi-boiler combines
the benefits of the Vitodens 222-F with the high DHW
convenience of a separate DHW tank. With the
MatriX gas burner and the stainless steel Inox-Radial
heat exchanger, the Vitodens 222-F offers top technology
for many years of energy efficiency and high heating and
DHW convenience. The Lambda Pro Control combustion
controller and the 3-speed high efficiency circulation
pump, ensure permanently high efficiency, reliable
operation and low power consumption.
The Vitodens 222-F is equipped with integral sensor
technology that enables operation without minimum
flow rate. The integral stainless steel 26.5 USG (100 L)
primary storage tank offers the same DHW convenience
as a separate DHW cylinder approximately twice the size.
Recommended applications
■ Installation in single or semi-detached homes and
apartments.
■ New build (e.g. pre-fabricated houses and housing
association projects): installation in utility rooms
and attics.
■ Modernisation: Replacement of system boilers,
floorstanding atmospheric gas boilers and oil/gas
boilers with DHW cylinders below.
Delivered condition
Gas condensing boiler with Inox-Radial heat exchanger,
modulating MatriX gas burner for natural gas and LPG
cylinder, expansion vessel, 3-speed high efficiency
circulation pump and integral stainless steel DHW
primary storage tank. Fully piped plumbed and wired.
White epoxy-coated casing. Preset for operation with
natural gas. The conversion to LPG is made at the gas
valve (a conversion kit is not required) and control unit.
Accessories required (order separately)
Installation on finished walls
■ Connection set (for upward connection) for installation
on finished walls
■ Connection set (for connection to the left or right) for
installation on finished walls
Benefits at a glance
■ Viessmann made SA240 316Ti stainless steel Inox Radial heat exchanger constructed to CSA B51 and
ASME Section IV
■ Viessmann made stainless steel MatriX cylinder burner
with Lambda Pro combustion management system for
continuous efficiency and low emissions
■ 2 models with input ranges from 12 to 125 MBH
■ Viessmann made SA240 316Ti stainless steel DHW
storage tank 26.5 USG (100 L)
■ Zero side clearance requirement
■ Pre-installed pressure / temperature relief valves
■ Fully enclosed heating expansion tank and circulation
pump
■ Exceeds Energy Star® Efficiency Requirements
■ Built-in 3-speed DHW / space heating pump with
diverter valve
■ Suitable for altitude levels up to 10,000 ft. (3,050 m)
■ Wide modulation ratio up to 6.5:1
■ Multiple venting options with vent length up to
180 ft. (55 m)
■ 10-minute peak flow of 60 USG (227 L)*
■ Continuous DHW draw of 3.3 GPM*
* Based on a temperature rise of 70ºF (39ºC)
50ºF to 120ºF (10ºC to 49ºC)
(model B2TA-35 only)
■ Fast heat-up with Storage Tank Loading System
■ Innovative DHW Storage Tank Loading System
comprised of plate heat exchanger, DHW loading pump
and storage tank
■ Certified to CSA Low Lead Content Certification Program;
including US Safe Drinking Water Act, NSF/ANSI 372
as well as other applicable US State requirements
Innovative Storage Tank Loading System (STLS)
Advanced Storage Tank Loading System technology in
the Vitodens 222-F ensures a reliable and efficient DHW
supply equivalent to that of a larger tank. The STLS
utilizes an external plate heat exchanger and DHW loading
pump for extremely fast heat-up capable of delivering a
10 minute peak flow of 60 gallons or continuous DHW
draw of 3.3 GPM*.
2
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5683 719 - 05
Vitodens 222-F, B2TA 19 and 35 Technical Data
Cross-Section
Product Information
Vitodens 222-F, series B2TA 19 and 35
A Stainless steel Inox-Radial heat exchanger for high
operational reliability, a long service life and high
heating output in the smallest space
B Modulating MatriX cylinder gas burner for extremely
clean combustion
C Integral diaphragm expansion tank
D Digital boiler control unit
E Integral, 3-speed high efficiency circulation pump
F Stainless steel DHW primary storage tank.
The flue gas temperature is only approximately 9-27º F
(5-15º C) above boiler return temperature (see chart
below).
Product may not be exactly as shown
5683 719 - 05
Vitodens 222-F boiler efficiency dependent on system
heating water return temperatures and load conditions
3
3
Technical Data
Vitodens 222-F, B2TA 19 and 35 Technical Data
Technical Data
Boiler Model No. 222-F B2TA 19 35
Natural Gas / Liquid Propane Gas
CSA input
CSA output/DOE *1
heating capacity
Net AHRI rating *2
Heat exchanger surface area ft.
Min. gas supply pressure
Natural gas
Liquid propane gas
Max. gas supply pressure *3
Natural gas
Liquid propane gas
A.F.U.E. % 93.3 93.3
Weight lbs
Boiler water content USG
Boiler max. flow rate *4 GPM
Expansion tank *5
(for heating system side)
Precharge pressure
Capacity
Max. operating pressure
at 210ºF (99ºC)
Boiler water temperature
- Adjustable high limit (AHL) range
space heating (steady state)
- Fixed high limit (FHL)
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
MBH
kW
MBH
kW
MBH
kW
m
“w.c.
“w.c.
“w.c.
“w.c.
kg
L/h
psig
USG
psig
bar
ºF
ºC
ºF (ºC)
NPTM”
NPTF”
(male
thread)
NPT”
NPTF”
12-67
3.5-20
10.9-61
3.2-18
53
15.5
2
2
L
L
10.89
1.01
4
10
14
14
282
128
0.87
3.27
6.2
1400
12
3.2
12
45
3
68 to 165
20 to 74
210 (99)
19-125
5.5-37
17.4-114
5.1-33
10.89
1.01
282
128
0.87
3.27
1400
68 to 165
20 to 74
210 (99)
¾”
¾”
¾”
¾”
¾”
99
29
4
10
14
14
6.2
12
3.2
12
45
3
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.
4
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5683 719 - 05
Vitodens 222-F, B2TA 19 and 35 Technical Data
Technical Data
Technical Data
Boiler Model No. 222-F B2TA 19 35
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 TS/TR =122/86ºF (50/30ºC) USG/h
Condensate connection *8 hose nozzle
Boiler flue gas connection *9 Ø in. (mm) 23/8” (60) 23/8” (60)
Combustion air supply connection (coaxial) outer Ø
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 BTU/24h
inches
mm
inches
mm
inches
mm
ºF (ºC)
ºF (ºC)
ºF (ºC)
L/h
Ø in.
in. (mm) 4” (100) 4” (100)
dB
dB
USG (L)
psig/temp
psig
psig
MBH (kW)
GPM (L/min.)
USG (L)
BTU/h
º F/h
150/210ºF (99ºC)
23b
595
23f
600
64
1625
113 (45)
95 (35)
154 (68)
2.6-3.4
10 - 12
¾-1” ¾-1”
41
35
26.5 (100)
150/210ºF (99ºC)
150
300
61 (17.8)
1.8 (6.6)
44 (166)
4435
184
0.8
23b
595
23f
600
1625
113 (45)
95 (35)
154 (68)
4-4.5
15 - 17
26.5 (100)
150
300
114 (33.4)
3.3 (12.3)
60 (227)
4435
184
64
51
36
0.8
*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, B2TA 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, B2TA
Venting System.
Do not attempt to common-vent Vitodens 222-F, B2TA 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, B2TA 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, B2TA 19 and 35 will have an altitude
de-ration of 21%.
5683 719 - 05
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Dimensional Information
Models 222-F, B2TA 19 and 35
Vitodens 222-F, B2TA 19 and 35 Technical Data
*1
Legend
A Condensate Drain (side)
Note: The dimensional drawing shows example fittings for upward connection and connection to the left/right, for
installation on finished walls. Order the connection sets separately as accessories. For the dimensions of the
individual connection sets, see the design information.
Model B2TB 19 and 35 Model B2TB 19 and 35
a *1 in. (mm)
b *1 in. (mm)
c *1 in. (mm)
d *1 in. (mm)
f *1 in. (mm)
g in. (mm)
h *1 in. (mm)
i *1 in. (mm)
j *1 in. (mm)
Note: All height dimensions of the boiler have a tolerance of +.6 in. (+15 mm) due to the factory installed adjustable feet
*1 Add 1f in. (40 mm) when using the optional accessory seismic bracket kit.
Note: All height dimensions of the boiler have a tolerance of +.5 in. (+13 mm) due to the seismic bracket adjustable feet.
6
6
46.1 (1172)
48.3 (1227)
28 (710) approx.
52.6 (1337)
57.0 (1447)
2.0 (50)
61.5 (1562)
64.2 (1630)
65.6 (1666)
k *1 in. (mm)
l *1 in. (mm) 68.0 (1726)
m in. (mm) 16.1 (410)
n in. (mm) 8.8 (224)
o in. (mm) 15.3 (389)
p in. (mm) 14.2 (361)
q in. (mm) 12.6 (320)
r in. (mm) 13.0 (330)
s in. (mm) 8.7 (220)
65.6 (1665)
5683 719 - 05
Vitodens 222-F, B2TA 19 and 35 Technical Data
Recommended Minimum Service Clearances
Minimum Clearances to Combustibles
Top Front Rear Left Right Vent
pipe *1
0 0 AL, CL 0 0 0 0
Minimum Clearances
AL= Alcove
CL= Closet
*1 Refer to the Installation Instructions of the Vitodens
222-F, B2TA Venting System for details.
Note: The Vitodens 222-F, B2TA boiler has passed the
zero inches vent clearance to combustibles testing
requirements dictated by the boiler Harmonized
Standard ANSI Z21.13. CSA 4.9.2012 and
therefore is listed for zero clearance to combustibles
when vented with a single-wall UL/ULC certified
special venting system. The zero inches vent
clearance to combustibles for the Vitodens boiler
supercedes the clearance to combustibles listing
that appears on the special venting system label.
The back or side clearance shall be increased if
piping installation is required.
5683 719 - 05
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7
Waterside Flow
Waterside Flow (primary circuit)
Vitodens 222-F, B2TA 19 and 35 Technical Data
The Vitodens 222-F, B2TA is designed for closed loop,
forced circulation hot water heating systems only. Use
standard friction loss method for pipe sizing. Observe
boiler maximum and minimum flow rate limitations. If
system flow rate exceeds boiler maximum flow rate
(as stated above), falls below the minimum flow rate
or if system flow rate is unknown, Viessmann strongly
recommends the installation of a low-loss header.
An alternative method may be used, such as primary
secondary piping using closely spaced tees.
Supply head pressure (water)
A low-loss header offers additional benefits not provided
by a pair of closely spaced tees. Viessmann therefore
strongly recommends and prefers the use of a low-loss
header over closely spaced tees. See pages 32 and 33
for low-loss header information. Once the low-loss header
is connected, the built-in low-loss header logic of the
Vitodens 222-F boiler ensures the required rt across the
system through the sensory communication between the
low-loss header and the boiler.
Pressure drop (primary circuit) for
Vitodens 222-F, B2TA 19 and 35
Flow rate
Boiler maximum flow rate 6.2 GPM (1400 L/h)
Model B2TA 19 1 boiler
Output (NG/LPG)
MBH 61
rt for NG/LPG
20ºF (11ºC) rise GPM (L/h) 6.1 (1385)
25ºF (14ºC) rise GPM (L/h) 4.9 (1113)
30ºF (17ºC) rise GPM (L/h) 4.0 (909)
35ºF (19.5ºC) rise GPM (L/h) 3.5 (795)
40ºF (22ºC) rise GPM (L/h) 3.1 (704)
Boiler maximum flow rate 6.2 GPM (1400 L/h)
Model B2TA 35 1 boiler
Output (NG/LPG)
MBH 114
rt for NG/LPG
20ºF (11ºC) rise GPM (L/h) 11.4 (2589)
25ºF (14ºC) rise GPM (L/h) 9.1 (2067)
30ºF (17ºC) rise GPM (L/h) 7.6 (1726)
35ºF (19.5ºC) rise GPM (L/h) 6.5 (1476)
40ºF (22ºC) rise GPM (L/h) 5.7 (1295)
8
5683 719 - 05
Vitodens 222-F, B2TA 19 and 35 Technical Data
Pump Information
Heating Circuit
Viessmann offers a variety of Grundfos heating circuit/
boiler pumps which meet typical Vitodens system
installation requirements (see “Heating circuit pump field
supplied)”. See tables below for recommended pumps.
Refer to the graphs on page 10 and 11 for the proper
waterside boiler friction loss calculations. The following
pumps have been selected based on boiler heat exchanger
head loss and boiler piping to a low-loss header.
Model B2TA 19 B2TA 35
Flow rate
20ºF (11ºC) rt GPM (L/h)
25ºF (14ºC) rt GPM (L/h)
30ºF (17ºC) rt GPM (L/h)
35ºF (19.5ºC) rt GPM (L/h)
40ºF (22ºC) rt GPM (L/h)
Flow limitation GPM (L/h) 4.4 (1200) 6.2 (1400)
6.1 (1385) --
4.9 (1113) --
4.0 (909) --
3.5 (795) 6.5 (1476)
3.1 (704) 5.7 (1295)
IMPORTANT
Pump selection must be based on accurate system flow
and pressure drop calculations (includes DHW sizing).
Low-Loss Header Application
Sizing of Low-Loss Header in a Residential Single-Boiler Application
Boiler
Model
B2TA 191 5.3
B2TA 351 6.2
*1 For system rt < 20ºF (11ºC) use low-loss header sizes for rt 20ºF (11ºC).
*2 Low-Loss temperature sensor - optional equipment for use in single-boiler applications.
Note: The Vitodens 222-F comes equipped with a factory preset integrated boiler pump.
No. of
Boilers
Boiler
Max.
Flow
Rate
GPM
(L/h)
(1200)
(1400)
Typical System Flow Rates
rt *1
System Flow
Rate
LLH Required
LLH Model
System Flow
Rate
LLH Required
LLH Model
°F
(°C)
GPM
(L/h)
Optional
GPM
(L/h)
20
(11.0)
6.1
(1385)
80/60
11.4
(2589)
Yes
80/60
25
(13.9)
4.9
(1108)
Optional
80/60
9.1
(2071)
Yes
80/60
30
(16.8)
4.1
(924)
Optional
80/60
7.6
(1726)
Yes
80/60
Optional
Optional
35
(16.1)
3.5
(792)
80/60
6.5
(1480)
80/60
40
(13.4)
3.1
(693)
Optional
80/60
5.7
(1295)
Optional
80/60
Viessmann
Low-loss
Temp.
Sensor
Required*2
Yes
Yes
5683 719 - 05
9
Low-Loss Header Information
Vitodens 222-F, B2TA 19 and 35 Technical Data
Heating Circuit Pumps
Grundfos UPS15-78 three speed heating circuit/DHW circuit pump for Vitodens 222-F, B2TA boilers
(in the factory setting, the pump speed is preset to ‘speed three’)
Speed Three
Speed Two
Speed One
Head H (ft of wc)
Flow Q (gpm)
Performance chart courtesy of Grundfos
Pump Model Grundfos UPS15-78
Rated voltage VAC 115
Rated current A max. 1.15
A min. 0.8
Capacitor
Power consumption W max. 130
Grundfos UPS15-78 residual head pressure
Residual head of built-in three speed pump used with Vitodens 222-F, B2TA
lF
W min. 80
8
10
Head H (ft of wc)
Flow Q (gpm)
5683 719 - 05
Vitodens 222-F, B2TA 19 and 35 Technical Data
Domestic Hot Water Production
The Vitodens 222-F storage combi-boiler combines
the benefits of the Vitodens 200-W with high DHW
convenience of a separate integral stainless steel DHW
storage tank.
The Vitodens 222-F uses an integrated 26.5 USG (100 L)
DHW storage tank and a DHW production pump.
Domestic Hot Water Recirculation
DHW Production
IMPORTANT
A diaphragm expansion tank is integrated into the
Vitodens 222-F, with a capacity of 3.2 USG (12 L) and
a pre-charge pressure of 12 psig.
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.
DHW recirculation lines increase the level of comfort and
convenience of the domestic hot water supply and reduce
water consumption.
These advantages directly derive from the immediate
availability of domestic hot water at all draw points.
Poor insulation of the DHW recirculation line, however,
can result in considerable heat loss. Viessmann therefore
recommends that effective insulation be provided and
used for DHW recirculation lines of 23 ft. (7 m) in length
or longer.
5683 719 - 05
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