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.
H
5683 719 - 05 03/2015
Product Information |
Vitodens 222-F, B2TA 19 and 35 Technical Data |
Vitodens 222-F
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 InoxRadial 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
5683 719 - 05
Vitodens 222-F, B2TA 19 and 35 Technical Data
Product Information
Cross-Section
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).
Vitodens 222-F boiler efficiency dependent on system heating water return temperatures and load conditions
Product may not be exactly as shown
5683 719 - 05
3
Technical Data |
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Vitodens 222-F, B2TA 19 and 35 Technical Data |
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Technical Data |
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Boiler Model No. 222-F B2TA |
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19 |
35 |
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Natural Gas / Liquid Propane Gas |
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CSA input |
MBH |
12-67 |
19-125 |
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kW |
3.5-20 |
5.5-37 |
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CSA output/DOE *1 |
MBH |
10.9-61 |
17.4-114 |
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heating capacity |
kW |
3.2-18 |
5.1-33 |
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Net AHRI rating *2 |
MBH |
53 |
99 |
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kW |
15.5 |
29 |
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Heat exchanger surface area |
ft.2 |
10.89 |
10.89 |
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m2 |
1.01 |
1.01 |
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Min. gas supply pressure |
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Natural gas |
“w.c. |
4 |
4 |
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Liquid propane gas |
“w.c. |
10 |
10 |
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Max. gas supply pressure *3 |
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Natural gas |
“w.c. |
14 |
14 |
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Liquid propane gas |
“w.c. |
14 |
14 |
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A.F.U.E. |
% |
93.3 |
93.3 |
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Weight |
lbs |
282 |
282 |
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kg |
128 |
128 |
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Boiler water content |
USG |
0.87 |
0.87 |
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L |
3.27 |
3.27 |
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Boiler max. flow rate *4 |
GPM |
6.2 |
6.2 |
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L/h |
1400 |
1400 |
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Expansion tank *5 |
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(for heating system side) |
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Precharge pressure |
psig |
12 |
12 |
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Capacity |
USG |
3.2 |
3.2 |
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L |
12 |
12 |
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Max. operating pressure |
psig |
45 |
45 |
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at 210ºF (99ºC) |
bar |
3 |
3 |
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Boiler water temperature |
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- Adjustable high limit (AHL) range |
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space heating (steady state) |
ºF |
68 to 165 |
68 to 165 |
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ºC |
20 to 74 |
20 to 74 |
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- Fixed high limit (FHL) |
ºF (ºC) |
210 (99) |
210 (99) |
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Boiler connections |
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Boiler heating supply and return |
NPTM” |
¾” |
¾” |
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Pressure relief valve |
NPTF” |
¾” |
¾” |
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Drain valve |
(male |
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¾” |
¾” |
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thread) |
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Boiler supply/return for |
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¾” |
¾” |
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indirect-fired DHW storage tank |
NPT” |
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(field supplied) |
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¾” |
¾” |
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Gas valve connection |
NPTF” |
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*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.
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5683 719 - 05
Vitodens 222-F, B2TA 19 and 35 Technical Data |
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Technical Data |
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Technical Data |
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Boiler Model No. 222-F B2TA |
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19 |
35 |
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Dimensions |
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Overall depth |
inches |
23B |
23B |
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mm |
595 |
595 |
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Overall width |
inches |
23F |
23F |
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mm |
600 |
600 |
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Overall height *12 |
inches |
64 |
64 |
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mm |
1625 |
1625 |
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Flue gas *6 |
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Temperature (at boiler return temperature of 86ºF (30ºC) |
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at rated full load |
ºF (ºC) |
113 (45) |
113 (45) |
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at rated partial load |
ºF (ºC) |
95 (35) |
95 (35) |
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Temperature (at boiler return temperature of 140ºF (60ºC) |
ºF (ºC) |
154 (68) |
154 (68) |
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Average condensate flow rate *7 |
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with natural gas and TS/TR =122/86ºF (50/30ºC) |
USG/h |
2.6-3.4 |
4-4.5 |
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L/h |
10 - 12 |
15 - 17 |
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Condensate connection *8 |
hose nozzle |
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Ø in. |
¾-1” |
¾-1” |
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Boiler flue gas connection *9 |
Ø in. (mm) |
23/ ” (60) |
23/ ” (60) |
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8 |
8 |
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Combustion air supply connection (coaxial) |
outer Ø |
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in. (mm) |
4” (100) |
4” (100) |
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Sound Rating |
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- at maximum input |
dB |
41 |
51 |
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- at minimum input |
dB |
35 |
36 |
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DHW storage tank |
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DHW storage tank capacity |
USG (L) |
26.5 (100) |
26.5 (100) |
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Temperature and pressure relief valve (factory installed) |
psig/temp |
150/210ºF (99ºC) |
150/210ºF (99ºC) |
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Max. allowable operating pressure (DHW) |
psig |
150 |
150 |
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Storage tank test pressure |
psig |
300 |
300 |
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Continuous DHW output |
MBH (kW) |
61 (17.8) |
114 (33.4) |
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Continuous DHW output draw rate *10 |
GPM (L/min.) |
1.8 (6.6) |
3.3 (12.3) |
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Max. DHW draw rate (over 10 min. period) *10 |
USG (L) |
44 (166) |
60 (227) |
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Standby losses *11 |
BTU/24h |
4435 |
4435 |
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BTU/h |
184 |
184 |
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º F/h |
0.8 |
0.8 |
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*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
05 |
de-ration of 21%. |
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5683 719 - |
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5
Dimensional Information |
Vitodens 222-F, B2TA 19 and 35 Technical Data |
Models 222-F, B2TA 19 and 35
*1
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 |
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Model B2TB 19 and 35 |
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a *1 |
in. (mm) |
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46.1 (1172) |
k *1 |
in. (mm) |
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65.6 (1665) |
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b *1 |
in. (mm) |
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48.3 (1227) |
l *1 |
in. (mm) |
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68.0 |
(1726) |
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c *1 |
in. (mm) |
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28 (710) approx. |
m |
in. (mm) |
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16.1 |
(410) |
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d *1 |
in. (mm) |
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52.6 (1337) |
n |
in. (mm) |
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8.8 (224) |
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f *1 |
in. (mm) |
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57.0 (1447) |
o |
in. (mm) |
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15.3 |
(389) |
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g |
in. (mm) |
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2.0 (50) |
p |
in. (mm) |
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14.2 |
(361) |
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h *1 |
in. (mm) |
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61.5 (1562) |
q |
in. (mm) |
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12.6 |
(320) |
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i *1 |
in. (mm) |
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64.2 (1630) |
r |
in. (mm) |
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13.0 |
(330) |
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j *1 |
in. (mm) |
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65.6 (1666) |
s |
in. (mm) |
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8.7 (220) |
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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
5683 719 - 05
Vitodens 222-F, B2TA 19 and 35 Technical Data |
Minimum Clearances |
Recommended Minimum Service Clearances
Minimum Clearances to Combustibles
Top |
Front |
Rear |
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Left |
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Right |
Vent |
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pipe *1 |
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0 |
0 AL, CL |
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0 |
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0 |
0 |
0 |
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AL= Alcove |
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CL= Closet |
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*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
7
Waterside Flow |
Vitodens 222-F, B2TA 19 and 35 Technical Data |
Waterside Flow (primary circuit)
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)
Flow rate
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 ρt 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
Boiler maximum flow rate 6.2 GPM (1400 L/h)
Model B2TA 19 |
1 boiler |
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Output (NG/LPG) |
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MBH |
61 |
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ρt for NG/LPG |
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20ºF (11ºC) rise GPM (L/h) |
6.1 |
(1385) |
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25ºF (14ºC) rise GPM (L/h) |
4.9 |
(1113) |
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30ºF (17ºC) rise GPM (L/h) |
4.0 |
(909) |
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35ºF (19.5ºC) rise GPM (L/h) |
3.5 |
(795) |
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40ºF (22ºC) rise GPM (L/h) |
3.1 |
(704) |
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Boiler maximum flow rate 6.2 GPM (1400 L/h)
Model B2TA 35 |
1 boiler |
Output (NG/LPG) |
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MBH |
114 |
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ρt for NG/LPG |
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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.
IMPORTANT
Pump selection must be based on accurate system flow and pressure drop calculations (includes DHW sizing).
Model |
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B2TA 19 |
B2TA 35 |
Flow rate |
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20ºF (11ºC) ρt |
GPM (L/h) |
6.1 (1385) |
-- |
25ºF (14ºC) ρt |
GPM (L/h) |
4.9 (1113) |
-- |
30ºF (17ºC) ρt |
GPM (L/h) |
4.0 (909) |
-- |
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35ºF (19.5ºC) ρt |
GPM (L/h) |
3.5 (795) |
6.5 (1476) |
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40ºF (22ºC) ρt |
GPM (L/h) |
3.1 (704) |
5.7 (1295) |
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Flow limitation |
GPM (L/h) |
4.4 (1200) |
6.2 (1400) |
Low-Loss Header Application
Sizing of Low-Loss Header in a Residential Single-Boiler Application
Boiler |
No. of |
Boiler |
Typical System Flow Rates |
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Viessmann |
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Model |
Boilers |
Max. |
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Low-loss |
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Flow |
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Temp. |
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Rate |
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Sensor |
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GPM |
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Required*2 |
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(L/h) |
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ρt |
*1 |
°F |
20 |
25 |
30 |
35 |
40 |
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(°C) |
(11.0) |
(13.9) |
(16.8) |
(16.1) |
(13.4) |
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B2TA |
1 |
5.3 |
System Flow |
GPM |
6.1 |
4.9 |
4.1 |
3.5 |
3.1 |
Yes |
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19 |
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(1200) |
Rate |
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(L/h) |
(1385) |
(1108) |
(924) |
(792) |
(693) |
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LLH Required |
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Optional |
Optional |
Optional |
Optional |
Optional |
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LLH Model |
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80/60 |
80/60 |
80/60 |
80/60 |
80/60 |
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B2TA |
1 |
6.2 |
System Flow |
GPM |
11.4 |
9.1 |
7.6 |
6.5 |
5.7 |
Yes |
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35 |
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(1400) |
Rate |
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(L/h) |
(2589) |
(2071) |
(1726) |
(1480) |
(1295) |
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LLH Required |
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Yes |
Yes |
Yes |
Optional |
Optional |
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LLH Model |
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80/60 |
80/60 |
80/60 |
80/60 |
80/60 |
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*1 For system ρt < 20ºF (11ºC) use low-loss header sizes for ρt 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.
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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
H (ft of wc) |
Speed Two |
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Head |
Speed One |
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Flow Q (gpm) |
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Performance chart courtesy of Grundfos |
Pump Model |
Grundfos UPS15-78 |
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Rated voltage |
VAC |
115 |
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Rated current |
A max. |
1.15 |
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A min. |
0.8 |
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Capacitor |
lF |
8 |
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Power consumption |
W max. |
130 |
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W min. |
80 |
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Grundfos UPS15-78 residual head pressure
Residual head of built-in three speed pump used with Vitodens 222-F, B2TA
Head H (ft of wc)
Flow Q (gpm)
10
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Vitodens 222-F, B2TA 19 and 35 Technical Data |
DHW Production |
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.
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.
Domestic Hot Water Recirculation
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.
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