Viessmann Vitodens 200 WB2 6-24C Instruction manual

Vitodens 200, WB2-24C/24/32 Vitodens 200, WB2-44/60
(with preinstalled vent pipe adaptor)
VITODENS 200
Gas-fired wall-mounted condensing boiler
25 to 230 MBH/7 to 67 kW
Vitodens 200
WB2 Series
Gas-Fired Wall-Mounted Condensing Boiler
with modulating MatriX-compact gas burner
for room air independent operation
(using a direct vent system)
For Natural Gas and Liquid Propane
Heating input NG 25 to 230 MBH
7to 67kW
Heating input LP 25 to 214 MBH
7to 63kW
Technical Data Manual
Model Nos. and pricing: see Price List
5167 472 v2.0 11/2002

Product Information
Product may not be exactly as illustrated.
2
VITODENS 200
The Vitodens 200 is a high-quality
condensing boiler made of stainless steel,
developed in accordance with the latest
achievements of the condensing boiler
technology industry. In terms of energy
usage, for example, the Vitodens 200 is
uncompromising: Thanks to the innovative
condensing technology of the boiler with
modulating MatriX-compact gas burner and
the especially developed Inox-Radial heat
exchanger surface, made of stainless steel,
the Vitodens 200 reaches an A.F.U.E. of up
to 94.2%.
The benefits at a glance:
HGas-fired condensing boiler
Standard heating boiler: 25 to 230 MBH/
7to 67kW
Combi heating boiler with
DHW production: 25 to 91 MBH/
7to 27kW
HA.F.U.E.: up to 94.2%
HThe modulating MatriX-compact gas burner
offers extremely low emissions. With
NOx: 8.9 ppm (air-free), CO: 5.5 ppm
(air-free), the Vitodens 200 meets the
specifications of the German “Blue Angel”
environmental certificate, Swiss clean air
regulations, California regulations, as well
as the most stringent requirements
worldwide of the Hamburg climatic
protection program “Heating + Solar”.
HInox-Radial heat exchanger surfaces made
of stainless steel – for increased
operational reliability, a long service life
and high heating output with minimum
space requirements.
Inox-Radial heat exchanger constructed in
compliance with CSA B51 and ASME.
HLow electrical power consumption due to
variable speed DC blower and variable
speed heating circuit pump (variable speed
pump available on some models only).
HThe Combi heating boiler with integrated
stainless steel plate heat exchanger
(integrated DHW Quick-System) and
comfort control produces domestic hot
water instantly, efficiently, and at even
temperatures.
HComfortrol control unit for
weather-responsive operation with
integrated diagnostic system and new
control functions.
HEasy to install, maintain and service
thanks to the uniform platform strategy
based on the building block principle with
plug-in connection system.
HSelf-calibrating flue gas adaptation: no
adjustments are necessary due to
automatic adaptation to the flue gas
pressure drop under varying operating
conditions.
Vitodens 200 –
Models WB2 11-44 and 15-60
172 MBH to 230 MBH/50 kW to 67 kW
5167 472 v2.0

Product Information
Cross-Section
Vitodens 200, WB2 6-24C
(25-91 MBH/7-27 kW) shown.
Product may not be exactly as illustrated.
3
Fully modulating MatriX-compact
gas burner – for extremely low
emission levels
Inox-Radial heat exchanger
surfaces made of stainless
steel – for increased
operational reliability,
a long service life and high
heating output with minimum
space requirements
Integrated, weather-responsive,
variable speed KM-BUS pump
Instantaneous DHW stainless
steel plate heat exchanger
(WB2 Combi Series)
Gas and water pipe
connections
Weather-responsive, digital
boiler control with
menu-driven Comfortrol
programming unit
5167 472 v2.0

Vitodens 200
4
Technical Data
Combi Series Standard heating boiler
Boiler Model Model No. WB2 6-24C WB2 6-24 WB2 8-32 WB2 11-44 WB2 15-60
Natural gas
CSA input
CSA output/DOE
heating capacity
MBH
kW
MBH
kW
25-91
7-27
22-81
6-24
25-91
7-27
22-81
6-24
37-124
11-36
33-112
10-32
55-172
16-50
49-153
14-44
80-230
23-67
71-205
21-60
Net I=B=R rating*1 MBH 70 70 97 133 178
Propane gas
CSA input
CSA output/DOE
heating capacity
MBH
kW
MBH
kW
25-81
7-24
22-73
6-21
25-81
7-24
22-73
6-21
37-112
11-33
33-101
10-30
55-155
16-45
49-138
14-40
80-214
23-63
71-191
21-56
Net I=B=R rating*1 MBH 63 63 88 120 166
Heat exchanger surface area ft.2
m2
8.22
0.76
8.22
0.76
9.91
0.92
20.91
1.94
20.91
1.94
Min. gas supply pressure
Natural gas
Propane gas
“w.c.
“w.c.
4
11
4
11
4
11
4
11
7
11
Max. gas supply pressure*2
Natural gas
Propane gas
“w.c.
“w.c.
14
14
14
14
14
14
14
14
14
14
A.F.U.E. %94.2 94.2 94.1 94.0 94.0
Max. power consumption (incl.
integrated pump for WB2 6-24
and 8-32)
W120 120 120 85 85
Weight lbs
kg
159
72
143
65
165
75
198
90
198
90
Boiler water content USG
ltr
1.1
4.0
1.1
4.0
1.2
4.6
3.1
11.7
3.1
11.7
Integrated pump flow rate
at 6.6 ft./2 m head pressure*3
GPM
ltr/h
4.6
1050
4.6
1050
4.6
1050
––
––
––
––
Boiler max. flow rate*4 GPM
ltr/h
6.2
1400
6.2
1400
7.0
1600
15.4
3500
15.4
3500
Max. operating pressure
at 210 ºF/99 ºC
psig
bar
45
3
45
3
45
3
45
3
45
3
Boiler water temperature
– Adjustable high limit (AHL)
range
space heating
DHW production
– Fixed high limit (FHL)
ºF/
ºC
ºF/
ºC
ºF/ºC
68 to 180/
20 to 82
108 to 183/
42 to 84
210/99
Boiler connections
Boiler heating supply and return NPTM “
Pressure relief valve NPTF “
Drain valve (male
thread)
Boiler supply/return for
indirect-fired DHW storage tank NPTM ”
¾
¾
¾
––
¾
¾
¾
¾
¾
¾
¾
¾
1¼
¾
1
1¼
1¼
¾
1
1¼
*1Net I=B=R rating based on piping and pick-up allowance of 1.15.
*2If the gas supply pressure exceeds the maximum gas supply pressure value, a separate gas pressure regulator must be installed upstream of the
heating system.
*3With pump rotational speed set to 100% flow capacity (2700 rpm), see Coding Address 045 in the Vitodens 200 Start-up/Service Instructions.
Pump factory default setting is 65% flow capacity (2000 rpm).
*4See “Typical System Flow Rates” on page 8 in this manual.
5167 472 v2.0

Vitodens 200
5
Combi Series Standard heating boiler
Boiler Model Model No. WB2 6-24C WB2 6-24 WB2 8-32 WB2 11-44 WB2 15-60
Dimensions
Overall depth
Overall width
Overall height
Height with flue gas elbow
(accessory)
inches
mm
inches
mm
inches
mm
inches
mm
16
406
19¾
500
35½
900
44
1116
16
406
19¾
500
35½
900
44
1116
16
406
19¾
500
35½
900
44
1116
21¼
540
23½
600
35½
900
47¼
1200
21¼
540
23½
600
35½
900
47¼
1200
Gas supply connection NPTF “ ½½ ½ ¾ ¾
Standby instantaneous DHW
plate heat exchanger
of Combi boiler*5
Water content DHW side
Inhalt heating water
side
USG/ltr
USG/ltr
0.26/1.00
0.18/0.70
––
––
––
––
––
––
––
––
Connections DHW and DCW NPTF “ ½ –– –– –– ––
Max. operating pressure
(DHW side)*6
DHW supply temp. range
Continuous draw rate
with a temperature increase
from 50 to 113 ºF/10 to 45 ºC
Draw rate range
psig/bar
ºF/ºC
GPH
ltr/h
GPM
ltr/min
150/10
100-135/38-57
156
590
0.8-2.1
3-8
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
Flue gas*7
Temperature (at boiler return
temperature of 86 ºF/30 ºC)
– at rated full load
– at rated partial load
Temperature (at boiler return
temperature of 140 ºF/60 ºC)
ºF/ºC
ºF/ºC
ºF/ºC
113/45
95/35
158/70
113/45
95/35
158/70
113/45
95/35
158/70
95/35
91/33
149/65
104/40
95/35
158/70
Average condensate
flow rate
with natural gas and
–T
S/TR=167/140ºF/75/60 ºC
–T
S/TR=104/86ºF/40/30 ºC
USG/day
ltr/day
USG/day
ltr/day
2-2.6
8-10
2.9-3.4
11-13
2-2.6
8-10
2.9-3.4
11-13
2.6-3
10-12
4-4.5
15-17
2.9-4
11-15
3.7-5
14-19
4.8-5.8
18-22
6-7.4
23-28
Condensate connection*8 hose
nozzle
Æin 1 1 1 1 1
Boiler flue gas connection*9 Æ
in/mm 3¼/80 3¼/80 3¼/80 4¼/110 4¼/110
Combustion air supply
connection*9
outer
Æin/mm 5/125 5/125 5/125 6/150 6/150
*5Minimum pressure for domestic cold water connection 1 bar/15 psig.
*6See DHW sizing chart on page 11 in this manual.
*7Measured flue gas temperature with a combustion air temperature of 68 °F/20 °C.
*8Requires 1”/25.4 mm tubing. See Vitodens 200 Installation Instructions for details.
*9For side wall vent installations:
Do not exceed max. equivalent length of 20 ft./6 m as stated in the Installation Instructions of the Vitodens 200 Direct Vent System.
Amaximum of five elbows may be installed in the vent system.
Do not attempt to common-vent Vitodens 200 with any other appliance.
Venting material to be supplied by Viessmann only; side wall vent installation must include Viessmann protective screen!
For more details refer to the venting section in this manual starting on page 17 and/or the Installation Instructions for the Vitodens 200
Direct Vent System.
"For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.
5167 472 v2.0

Vitodens 200
78”/1975 mm (from floor level, recommended)
GC BR
DR/
DCW
15”/380 mm
BS
10”/250 mm
FFL
5”/125 mm
38”/965 mm
BD
37”/938 mm
16”/406 mm
(Depth)
(Height)
DS/
DHW
PRV AV
6¼”/158 mm
4¾“/120 mm
73/8“/187 mm
12¼”/314 mm
9¾”/250 mm
19¾”/500 mm (Width)
6
Vitodens 200 up to model WB2 8-32
Legend
AV Air Vent
BD Boiler Drain
BR Boiler Return
BS Boiler Supply
FFL Finished Floor Level
GC Gas Connection
PRV Pressure Relief Valve
Only for Combi heating boiler
DCW Domestic Cold Water ½”
DHW Domestic Hot Water ½”
Only for standard heating boiler
DR Boiler heating return for domestic hot
water production ¾”
DS Boiler heating supply for domestic hot
water production ¾”
5167 472 v2.0

Vitodens 200/Technical Data
GC BR
78”/1975 mm (from floor level, recommended)
3”/75 mm
540 mm (Depth)
DS
BS
DR
12”/300 mm
FFL
(
PRV
AV
2”/50 mm
BD
55”/1399 mm
8½”/215 mm
21¼”/
(Height)
73/8“/187 mm
11¾”/300 mm
16¼”/413 mm
20¾”/525 mm
23½”/600 mm (Width)
Ø6”/150 mm
7
Vitodens 200 model WB2 11-44 and up
Legend
AV Air Vent
BD Boiler Drain
BR Boiler Return
BS Boiler Supply
DR Boiler heating return for domestic
hot water production 1¼”
DS Boiler heating supply for domestic
hot water production 1¼”
FFL Finished Floor Level
GC Gas Connection
PRV Pressure Relief Valve
Recommended Minimum Service Clearances Minimum Clearances to Combustibles
Top Front Rear Left Right Concentric
vent pipe*1
00AL,CL 0 0 0 0
AL = Alcove
CL = Closet
*1Refer to the Installation Instructions of the Vitodens 200
Direct Vent System for details.
Diagram is not to scale.
5167 472 v2.0
Front
6”/150 mm
Top
12”/305 mm
0”/mm
28”/700 mm
Side
0”/mm
Back
Side

Technical Data
Pressure drop up to model WB2 8-32
Pressure drop model WB2 11-44 and up
0
1
2
3
4
5
6
7
8
0
3.3
6.6
9.8
13.1
16.4
19.7
23
26
Supply head pressure ft. m
02.2 4.4 6.6 8.8 11 13.2
Flow rate
15.41.1
0 500 1000 1500 2000 2500 3000 3500250 ltr/h
GPM
8
Waterside Flow (primary circuit)
The Vitodens 200 is designed only for closed loop, forced circulation
hot water heating systems.
Pressure drop (primary circuit) of Vitodens 200
Typical System Flow Rates
Model WB2 6-24C* 6-24 8-32 11-44 15-60
∆tforNG
Output (NG) Btu/h 81 000 81 000 112 000 153 000 205 000
20 ºF rise (GPM) 8.1 8.1 11.2 15.3 20.5
25 ºF rise (GPM) 6.5 6.5 9.0 12.2 16.4
30 ºF rise (GPM) 5.4 5.4 7.5 10.2 13.7
35 ºF rise (GPM) 4.6 4.6 6.4 8.7 11.7
40 ºF rise (GPM) 4.1 4.1 5.6 7.6 10.2
∆tforLP
Output (LG) Btu/h 73 000 73 000 101 000 138 000 191 000
20 ºF rise (GPM) 7.3 7.3 10.1 13.8 19.1
25 ºF rise (GPM) 5.8 5.8 8.1 11.0 15.3
30 ºF rise (GPM) 4.9 4.9 6.7 9.2 12.7
35 ºF rise (GPM) 4.2 4.2 5.8 7.9 10.9
40 ºF rise (GPM) 3.7 3.7 5.1 6.9 9.6
Use standard friction loss method for pipe sizing.
Observe boiler maximum flow rate limitations. If system flow rate exceeds
boiler maximum flow rate (as stated on page 4) or if system flow rate is unknown, Viessmann strongly
recommends the installation of a low-loss header. See page 29 for low-loss header information.
5167 472 v2.0
A low-loss header must be used when the system flow
rate exceeds the maximum flow rate of the Vitodens 200
boiler (as stated on page 4). Once the low-loss header
is connected, the built-in low-loss header logic of the
Vitodens 200 boiler ensures the required ∆t across the
system through the sensory communication between the
low-loss header and the boiler.
*Please note that the low-loss header cannot be used
with the Vitodens 200, WB2 6-24C Combi boiler.

Heating Circuit Pumps
With pump rotational speed set to 100% flow capacity (2700 rpm);
see Coding Address 045 in the Vitodens 200
Start-up/Service Instructions.
Pump factory default setting is 65% flow capacity (2000 rpm).
6
5
4
3
2
1
0
19.7
16.4
13.1
9.8
6.6
3.3
0 m ft. Head pressure
0.88 1.32 1.76 2.2 2.64 3.08 3.52 3.96 4.4 4.84 5.28 5.72 6.16 6.6 7.04
Flow rate
200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 ltr/h
GPM
9
Heating Circuit Pumps
Built-in variable speed heating circuit pump
for Vitodens 200 up to model WB2 8-32
Pump rotational speed is transmitted via an
internal data BUS to the pump and adjusted
by the control unit based on the outdoor
temperature and the activation periods for
normal and reduced heating.
In the factory default setting, the maximum
pump rotational speed is preset to
2000 rpm (coding address ”045”) and the
minimum pump speed to 1100 rpm (coding
address ”044”).
Pump Model Grundfos VIUPE-60 BUS
Rated voltage
Rated current
Condensor
Power
consumption
VAC
Amax.
Amin.
μF
Wmax.
Wmin.
230
0.45
0.21
2.5
100
50
Vitodens 200 up to model WB2 8-32 (residual head pressure of built-in variable speed pump)
Field supplied system heating circuit pumps
for Vitodens 200 (all models)
Viessmann offers a variety of prewired
Grundfos system heating circuit pumps (see
“Heating circuit pump (field supplied)” in the
Installation Examples on pages 34 to 42)
which meet typical Vitodens system
installation requirements.
See Price List for order information.
5167 472 v2.0

Heating Circuit Pumps/DHW Production
Pump selection must be based on accurate
system flow and pressure drop calculations
(incl. DHW sizing). Viessmann offers a variety
of prewired Grundfos circulating pumps which
meet typical Vitodens system installation
requirements.
See Price List for order information.
The following prewired standard Grundfos
pumps are available for operation with the
Vitodens 200, WB2-44/60 boilers:
HModel UP 26-99 F
HModel UP 43-75 F
HModel UP 26-96 F
HModel UP 26-64 F
Please reference corresponding
performance curves (1-4) in the chart to
the left.
IMPORTANT
Performance chart courtesy of Grundfos.
10
Heating Circuit Pumps (continued)
Recommended pumps for operation with Vitodens 200 model WB2 11-44 and up
(heating circuit pump, boiler pump and DHW pump field supplied)
DHW Production Planning
With integrated stainless steel plate heat
exchanger for instantaneous DHW heating
(model WB2 6-24C only) or with DHW
connections for DHW production via a
stand-alone DHW storage tank, the Vitodens
200 boiler series offers the right solution for
every need.
Various factors must be taken into account
when designing the DHW system, and
when deciding between the Combi heating
boiler with integrated DHW production and
the standard heating boiler with DHW
production via a stand-alone DHW storage
tank.
Such factors are:
HDHW requirement, level of comfort and
convenience
HNumber of draw points
HDistance of draw points from the
boiler/DHW storage tank
HSystem retrofit
HSpace requirements
Options
Gas-fired Combi
boiler with
instantaneous DHW
production
Gas-fired standard
heating boiler with
stand-alone DHW
storage tank
DHW requirement, level of DHW requirement for an apartment + +
q
,
comfort and convenience DHW requirement for a single-family house 0 +
Central DHW requirement for a multi-family house – +
Decentralized DHW requirement for a multi-family house + +
Number of draw points One draw point + 0
p
Several draw points, non-simultaneous use + 0
Several draw points, simultaneous use – +
Distance of draw points from Up to 23 ft./7 m (without DHW recirculation line) + –
p
the boiler/DHW storage tank With DHW recirculation line – +
System retrofit DHW storage tank already installed – +
Replacement of existing Combi boiler + –
Space requirements Minimal space available (installation in alcove) + 0
Adequate space available (boiler room) + +
+ = recommended 0 = recommended in certain cases – = not recommended
5167 472 v2.0