Viessmann Vitodens 200-W System Quick start guide

VIESMANN VITODENS 200-W
Gas condensing boilers
17.0 to 150.0 kW
As multi boiler system up to 900.0 kW
VITODENS 200-W Type B2HA
Wall mounted gas condensing boiler
With modulating MatriX cylinder burner for natural gas and
LPG
For open or balanced flue operation
5822 432 GB 9/2012
Technical guide

Index
1. Vitodens 200-W 1.1 Product description ....................................................................................................... 4
1.2 Specification ................................................................................................................. 5
■Vitodens 200-W, 45 and 60 kW ................................................................................ 6
■Vitodens 200-W, 80 and 100 kW .............................................................................. 9
■Vitodens 200-W, 125 and 150 kW ............................................................................ 10
2. Installation accessories 2.1 Product description ....................................................................................................... 14
■ Installation accessories for the Vitodens 200-W, 45 and 60 kW ............................... 14
■ Installation accessories for the Vitodens 200-W, 80 and 100 kW ............................. 24
■ Installation accessories for the Vitodens 200-W, 125 and 150 kW ........................... 24
■ Installation accessories for multi boiler systems ....................................................... 26
3. DHW cylinder 3.1 Product description ....................................................................................................... 27
4. Design information 4.1 Positioning, installation ................................................................................................. 27
■ Siting conditions for open flue operation (appliance type B) ..................................... 27
■ Installation conditions for balanced flue operation (appliance type C) ...................... 27
■ Operation of the Vitodens in wet areas ..................................................................... 28
■ Electrical connection ................................................................................................. 28
■ Gas connection ......................................................................................................... 29
■ Minimum clearances ................................................................................................. 29
■ Installing the Vitodens 200-W, 45 to 100 kW directly onto a wall (single boiler) ....... 30
■ Installing the Vitodens 200-W, 125 to 150 kW directly onto a wall (single boiler) ..... 31
■ Pre-installation, multi boiler system .......................................................................... 32
4.2 Condensate connection ................................................................................................ 41
■ Condensate drain and neutralisation ........................................................................ 41
4.3 Hydraulic connection .................................................................................................... 43
■ General information .................................................................................................. 43
■ Expansion vessels .................................................................................................... 44
■ Multi boiler systems .................................................................................................. 45
■ Low loss header ........................................................................................................ 45
5. Control units 5.1 Vitotronic 100, type HC1B, for constant temperature operation ................................... 46
■ Layout and functions ................................................................................................. 46
■ Specification Vitotronic 100, type HC1B ................................................................... 47
5.2 Vitotronic 200, type HO1B, for weather-compensated operation ................................. 48
■ Specification Vitotronic 200, type HO1B ................................................................... 50
5.3 Vitotronic 300-K, type MW2B for multi boiler systems .................................................. 50
■ Cascade control unit for the Vitodens 200-W with a Vitotronic 100 .......................... 50
■ Layout and function ................................................................................................... 50
■ Specification, Vitotronic 300-K .................................................................................. 52
■ Delivered condition Vitotronic 300-K ......................................................................... 53
Index
2VIESMANN VITODENS 200-W
5822 432 GB

5.4 Accessories for the Vitotronic ....................................................................................... 53
■ Allocation to control unit types .................................................................................. 53
■ Vitotrol 100, type UTA ............................................................................................... 54
■ Vitotrol 100, type UTDB ............................................................................................ 54
■ External extension H4 ............................................................................................... 55
■ Vitotrol 100, type UTDB-RF ...................................................................................... 55
■ Notes regarding room temperature hook-up (RS function) for remote control units . 56
■ Information on the Vitotrol 200A and Vitotrol 300A ................................................... 56
■ Vitotrol 200A ............................................................................................................. 56
■ Vitotrol 300A ............................................................................................................. 57
■ Information regarding the Vitotrol 200 RF and Vitotrol 300 RF ................................. 57
■ Vitotrol 200 RF .......................................................................................................... 57
■ Vitotrol 300 RF with table-top dock ........................................................................... 58
■ Vitotrol 300 RF with wall mounting bracket ............................................................... 58
■ Wireless base station ................................................................................................ 59
■ Wireless outside temperature sensor ....................................................................... 60
■ Wireless repeater ...................................................................................................... 60
■ Room temperature sensor ........................................................................................ 61
■ Immersion temperature sensor ................................................................................. 61
■ Mounting base for programming unit ........................................................................ 61
■ Radio clock receiver .................................................................................................. 62
■ KM BUS distributor ................................................................................................... 62
■ Mixer extension kit with integral mixer motor ............................................................ 62
■ Mixer extension kit for separate mixer motor ............................................................ 63
■ Vitotronic 300-K extension for heating circuits 2 and 3 with mixers .......................... 63
■ Extension kit for one heating circuit with mixer in conjunction with Divicon heating
circuit distributor ........................................................................................................ 64
■ Extension kit for one heating circuit with mixer for the Vitotronic 300-K ................... 64
■ Immersion thermostat ............................................................................................... 65
■ Contact thermostat .................................................................................................... 65
■ Solar control module, type SM1 ................................................................................ 66
■ Internal extension H1 ................................................................................................ 67
■ Internal extension H2 ................................................................................................ 67
■ Extension AM1 .......................................................................................................... 67
■ Extension EA1 .......................................................................................................... 67
■ Vitocom 100, type LAN1 ........................................................................................... 68
■ Vitocom 100, type GSM ............................................................................................ 69
■ LON connecting cable for data exchange between control units .............................. 69
■ Extension of the connecting cable ............................................................................ 70
■ Terminator (2 pce) .................................................................................................... 70
■ LON communication module ..................................................................................... 70
6. Appendix 6.1 Regulations / Directives ................................................................................................ 70
■ Regulations and Directives ....................................................................................... 70
7. Keyword index .............................................................................................................................................. 72
Index (cont.)
VITODENS 200-W VIESMANN 3
5822 432 GB

1.1 Product description
AInox-Radial heat exchanger made from stainless steel – for high
operational reliability and a long service life. Large heating output
in the smallest of spaces
BModulating MatriX cylinder burner for extremely clean combustion
and quiet operation
CVariable speed combustion fan for quiet and economical opera-
tion
DGas and water connections
EDigital boiler control unit
Vitodens 200-W wall mounted condensing boilers up to 150 kW are
especially suitable for installation in apartment buildings and commer-
cial or public buildings. For these, the Vitodens 200-W offers an afford-
able, space-saving solution – either as a single unit up to 150 kW or
as a cascade with up to eight boilers and a heating output up to 900
kW.
The Inox-Radial heat exchanger made from stainless steel offers high
output in the tightest of spaces. This enables particularly efficient oper-
ation with standard seasonal efficiency [to DIN] up to 98 % (Hs) [gross
cv] / 109 % (Hi) [net cv].
The Vitotronic 300-K cascade control unit regulates up to eight
Vitodens 200-W as a single heating centre. It also automatically
matches the boiler output to the heat demand. This means that, subject
to the prevailing heat demand, either one boiler modulates or all eight
boilers operate concurrently.
For creating cascade systems, we offer perfectly matching system
components, e.g. control units with up to eight appliances, fully insu-
lated hydraulic cascades and flue gas headers.
Application recommendations
High heating output from a compact, user friendly wall mounted boiler,
suitable for the following applications:
■ Systems with few, large-demand consumers, e.g. fan heaters in
supermarkets/shopping centres, workshops and industrial prem-
ises, commercial nurseries, garages and DHW heating systems
■ Systems with several heating circuits for underfloor and/or static
radiators in apartment buildings, central heating plants for terraced
houses, office buildings and administration premises - particularly
suitable for attic heating centres
■ Heating of public buildings, such as sports and multi purpose halls,
schools, kindergartens
■ Suitable for installation in basement boiler rooms, on floors inbetw-
een or in the attic
Benefits at a glance
■ Option of cascade with up to eight boilers with a rated heating output
from 45 kW to 900 kW
■ Standard seasonal efficiency [to DIN] up to
98 % (Hs) [gross cv] / 109 % (Hi) [net cv]
■ Durable and efficient thanks to the Inox-Radial heat exchanger
■ Modulating MatriX cylinder burner with a long service life thanks to
stainless steel MatriX gauze – resistant to high temperature loads
■ Easy-to-use Vitotronic control unit with plain text and graphic display
■ The programming unit of the control unit can also be fitted on a wall
mounting base (accessory)
■ Lambda Pro Control combustion controller for all gas types – saves
on costs due to extension of the inspection interval to 3 years
■ Quiet operation thanks to low fan speed
Delivered condition
Wall mounted gas condensing boiler with Inox-Radial heat exchanger,
modulating MatriX cylinder burner for natural gas and LPG, to DVGW
Code of Practice G260 [Germany], plus wall mounting bracket.
Fully plumbed and wired. White epoxy-coated casing.
Packed separately:
Vitotronic 100 for constant temperature mode
or
Vitotronic 200 for weather-compensated operation.
Preset for operation with natural gas. A conversion within gas groups
E/LL is not required. The conversion to LPG is made at the gas valve
(a conversion kit is not required).
Multi boiler systems
Multi boiler systems for open flue operation with 2, 3, 4, 6 or 8 boil-
ers.
Installation with a self-supporting mounting frame in series and
in block formation
Comprising:
■ Hydraulic cascade
■ Connection set for every boiler with:
– Connection lines formed to suit
– High efficiency circulation pump
– Ball valves
– Drain & fill valve
– Check valve
– Gas shut-off valve
– Safety valve
■ Thermal insulation
■ Weather-compensated, digital cascade and heating circuit control
unit Vitotronic 300-K
■ Cascade communication module for each boiler
■ Self-supporting mounting frame
Note
Order circulation pumps for heating circuits and cylinder heating sep-
arately.
Tested quality
CE designation according to current EC Directives
ÖVGW Quality Mark pursuant to quality symbol regulation
1942 DRGBl. I for gas and water equipment
Meets the requirements for the "Blue Angel" eco-label RAL UZ 61.
Vitodens 200-W
4VIESMANN VITODENS 200-W
1
5822 432 GB

1.2 Specification
Gas boiler, series B and C, category II2N3P II2N3P II2N3P II2N3P II2N3P II2N3P
Gas condensing boiler
Rated heating output range
45 and 60 kW: Specification to EN 677
80 to 150 kW: Specification to
EN 15417
TV/TR = 50/30 °C kW 17.0-45.0 17.0-60.0 30.0-80.0 30.0-100.0 32.0-125.0 32.0-150.0
TV/TR = 80/60 °C kW 15.4-40.7 15.4-54.4 27.0-72.6 27.0-91.0 29.0-114.0 29.0-136.0
Rated heat input kW 16.1-42.2 16.1-56.2 28.1-75.0 28.1-93.8 30-118 30-142
Type B2HA B2HA B2HA B2HA B2HA B2HA
Product ID CE-0085CN0050
IP rating IP X4D to EN 60529
Gas supply pressure
Natural gas mbar 20 20 20 20 20 20
LPG mbar 50 50 50 50 50 50
Max. permissible gas supply pres-
sure*1
Natural gas mbar 25.0 25.0 25.0 25.0 25.0 25.0
LPG mbar 57.5 57.5 57.5 57.5 57.5 57.5
Power consumption (delivered condi-
tion)
W 56 82 90 175 146 222
Weight kg 65 65 83 83 130 130
Heat exchanger content l 7.0 7.0 12.8 12.8 15.0 15.0
Max. flow rate
Limit for the use of hydraulic separation
l/h 3500 3500 5700 5700 7165 8600
Rated circulation water volume at TV/
TR = 80/60 °C
l/h 1748 2336 3118 3909 4900 5850
Permiss. operating pressure bar 4 4 4 4 6 6
Dimensions
Length mm 380 380 530 530 690 690
Width mm 480 480 480 480 600 600
Height mm 850 850 850 850 900 900
Gas connection R ¾ ¾ 1 1 1 1
Connection values
in relation to the max. load
with gas
Natural gas
E
m3/h 4.47 5.95 7.94 9.93 12.49 15.03
Natural gas
LL
m3/h 5.19 6.91 9.23 11.54 14.51 17.47
LPG kg/h 3.30 4.39 5.86 7.33 9.23 11.10
Flue gas parameters*2
Flue gas category to G 635/G 636 G52/G51 G52/G51 G52/G51 G52/G51 G52/G51 G52/G51
Temperature (at 30 °C return tempera-
ture)
– at rated heating output °C 62 66 46 57 51 60
– at partial load °C 39 39 37 37 39 39
Temperature (at 60 °C return tempera-
ture)
°C 75 80 68 72 70 74
Mass flow rate
Natural gas
– at rated heating output kg/h 78 104 139 174 210 253
– at partial load kg/h 30 30 52 52 53 53
LPG
– at rated heating output kg/h 74 99 132 165 231 278
– at partial load kg/h 28 28 49 49 59 59
Available draught Pa 250 250 250 250 250 250
mbar 2.5 2.5 2.5 2.5 2.5 2.5
*1 If the gas supply pressure is higher than the maximum permissible value, install a separate gas pressure governor upstream of the system.
*2 Calculation values for sizing the flue system to EN 13384.
Flue gas temperatures captured as gross values at 20 °C combustion air temperature.
The flue gas temperature at a return temperature of 30 °C is significant for sizing the flue system.
The flue gas temperature at a return temperature of 60 °C is used to determine the application range of flue pipes with max. permissible
operating temperatures.
Vitodens 200-W (cont.)
VITODENS 200-W VIESMANN 5
5822 432 GB
1

Gas boiler, series B and C, category II2N3P II2N3P II2N3P II2N3P II2N3P II2N3P
Gas condensing boiler
Rated heating output range
45 and 60 kW: Specification to EN 677
80 to 150 kW: Specification to
EN 15417
TV/TR = 50/30 °C kW 17.0-45.0 17.0-60.0 30.0-80.0 30.0-100.0 32.0-125.0 32.0-150.0
TV/TR = 80/60 °C kW 15.4-40.7 15.4-54.4 27.0-72.6 27.0-91.0 29.0-114.0 29.0-136.0
Standard seasonal efficiency [to DIN]
at
TV/TR = 40/30 °C % up to 98 (Hs) [gross cv] / 109 (Hi) [net cv]
Max. amount of condensate
for natural gas and TV/TR = 50/30 °C l/h 5.9 7.9 10.5 13.1 16.5 20.0
Internal pipe diameter to
expansion vessel DN 22 22 28 28 25 25
safety valve DN 22 22 22 22 26 26
Condensate connection (hose nozzle) Ø mm 20-24 20-24 20-24 20-24 20-24 20-24
Flue gas connection Ø mm 80 80 100 100 100 100
Ventilation air connection Ø mm 125 125 150 150 150 150
Vitodens 200-W, 45 and 60 kW
Multi boiler systems
For further details regarding multi boiler systems, see page 32.
40
100
160 160
752
1975 1690
850
380
480
875
1166
160
E
A
L
M
O
CB D F
H
P
K
N
200
G
65 65
R
902
AExpansion vessel connection G 1
BSafety valve
CHeating flow G 1½
DCylinder flow G 1½
EGas connection R ¾
FCylinder return G 1½
GHeating return G 1½
HCable entry area at the back
KConnection sets (accessory)
Shown without thermal insulation (standard delivery)
Vitodens 200-W (cont.)
6VIESMANN VITODENS 200-W
1
5822 432 GB

LWithout connection sets
MWith connection sets
NRecommended dimension for a single boiler system
ORecommended dimension for a multi boiler system
PCondensate drain
RTop edge finished floor
Note
Lay all required power cables on site and route them into the boiler in
area H.
Variable speed high efficiency circulation pump in the heating circuit connection set (accessory)
The HE circulation pump features a power consumption reduced by
more than 50 % compared with conventional pumps.
Matching the pump rate of the circulation pump to the individual system
conditions reduces the power consumption of the heating system.
Circulation pump VI Para 25/1-11
Rated voltage V~ 230
Power consumption W Max. 140
Min. 8
Residual head of the circulation pump
100
Residual head in mbar
00 1000
Flow rate in l/h
200
600
800
1000
300
400
500
700
900
2000 3000 4000
10
0
20
60
80
100
30
40
50
70
90
kPa
1100110
1200120
A
B
C
D
E
F
G
Curve Circulation pump rate
A40 %
B50 %
C60 %
D70 %
E80 %
F90 %
G100 %
Pressure drop on the heating water side
For sizing an on-site circulation pump
0 500 1000 1500
0
100
200
300
400
500
600
Pressure drop in mbar
0
10
20
30
40
50
60
kPa
2000 2500 3000 3500
Flow rate in l/h
Vitodens 200-W (cont.)
VITODENS 200-W VIESMANN 7
5822 432 GB
1

Circulation pump in the connection set for DHW cylinders
Pump type VI Yonos Para 25/6
Voltage V~ 230
Power consumption W Max. 45
Min. 3
Residual head of the circulation pump
0 500 1000 1500
0
100
200
300
400
500
600
Head in mbar
0
10
20
30
40
50
60
kPa
2000
Pump rate in l/h
A
B
700
70
C
AStage 1
BStage 2
CStage 3
Vitodens 200-W (cont.)
8VIESMANN VITODENS 200-W
1
5822 432 GB

Vitodens 200-W, 80 and 100 kW
Multi boiler systems
For further details regarding multi boiler systems, see page 32.
100
850
530
P
40
160 160
200
752
1975 1690
480
875
1300
E
L
M
O
K
H
N
236
A
B
CG
DF
56 56
975
146
R
ASafety valve
BExpansion vessel connection G1
CBoiler flow 7 42 mm
DCylinder flow 7 35 mm
EGas connection R 1
FCylinder return 7 35 mm
GBoiler return 7 42 mm
HConnection sets (accessory)
Shown without thermal insulation (standard delivery)
KCable entry area at the back
LWithout connection set (accessory)
MWith connection set (accessory)
NRecommended dimension (single boiler system)
ORecommended dimension (multi boiler system)
PCondensate drain
RTop edge finished floor
Note
The heating circuit connection set must be ordered separately.
Note
Lay all required power cables on site and route them into the boiler in
area K.
Variable speed high efficiency circulation pump in the heating circuit connection set (accessory)
The HE circulation pump features a power consumption reduced by
more than 50 % compared with conventional pumps.
Matching the pump rate of the circulation pump to the individual system
conditions reduces the power consumption of the heating system.
Circulation pump VI Para 25/1-12
Rated voltage V~ 230
Power consumption W Max. 310
Min. 16
Vitodens 200-W (cont.)
VITODENS 200-W VIESMANN 9
5822 432 GB
1

Residual head of the circulation pump
100
Residual head in mbar
00 1000
Flow rate in l/h
200
600
800
1000
300
400
500
700
900
2000 3000 4000
10
0
20
60
80
100
30
40
50
70
90
kPa
5000 6000
1100110
1200120
A
B
C
D
E
F
G
Curve Circulation pump rate
A40 %
B50 %
C60 %
D70 %
E80 %
F90 %
G100 %
Note
Observe further details regarding the use of a low loss header (see
page 45).
If the residual head of the circulation pump available as an accessory
is insufficient to overcome the following system pressure drop values,
install an additional, external circulation pump on site.
In such cases, use a low loss header.
Pressure drop on the heating water side
For sizing a circulation pump on site (when connecting to a DHW cyl-
inder connection set)
0 1000 2000 3000
0
100
200
300
400
500
600
Pressure drop in mbar
0
10
20
30
40
50
60
kPa
4000 5000 6000 7000
Flow rate in l/h
Vitodens 200-W, 125 and 150 kW
Multi boiler systems
For further details regarding multi boiler systems, see page 32.
Vitodens 200-W (cont.)
10 VIESMANN VITODENS 200-W
1
5822 432 GB

165,5
165,5
923
1440
95
690
278
900
600
40
200
855
1975 1950
E
L
M
P
K
H
O
A
B
C
G
DF
70 70
195
R
1550 N
ASafety valve
BExpansion vessel connection G1
CBoiler flow 7 54 mm
DCylinder flow 7 42 mm
EGas connection R 1
FCylinder return 7 42 mm
GBoiler return 7 54 mm
HConnection sets (accessory)
Shown without thermal insulation (standard delivery)
KCable entry area at the back
LWithout connection set (accessory)
MWith heating circuit connection set (accessory)
NWith DHW cylinder connection set (accessory)
ORecommended dimension (single boiler system without mounting
frame)
PRecommended dimension (multi boiler system or single boiler
system with mounting frame)
RCondensate drain
Note
The heating circuit connection set must be ordered separately.
Note
Lay all required power cables on site and route them into the boiler in
area K.
Variable speed high efficiency circulation pump in the heating circuit connection set (accessory)
The HE circulation pump features a power consumption reduced by
more than 50 % compared with conventional pumps.
Matching the pump rate of the circulation pump to the individual system
conditions reduces the power consumption of the heating system.
Vitodens 200-W (cont.)
VITODENS 200-W VIESMANN 11
5822 432 GB
1

Circulation pump VI Para 30/1-12
Rated voltage V~ 230
Power consumption W Max. 310
Min. 16
Variable speed (Δp constant or Δp variable), fully wired.
Note
For operation in multi boiler systems, select speed control Δp con-
stant.
Residual head of the circulation pump
100
Residual head in mbar
00 2000
Flow rate in l/h
200
600
800
1000
300
400
500
700
900
10
0
20
60
80
100
30
40
50
70
90
kPa
1100110
1200120
1000 40003000 60005000 80007000 9000
F
E
D
C
B
A
Curve Circulation pump rate
A50 %
B60 %
C70 %
D80 %
E90 %
F100 %
Vitodens 200-W (cont.)
12 VIESMANN VITODENS 200-W
1
5822 432 GB

Note
Observe further details regarding the use of a low loss header (see
page 45).
If the residual head of the circulation pump available as an accessory
is insufficient to overcome the following system pressure drop values,
install an additional, external circulation pump on site.
In such cases, use a low loss header.
Pressure drop on the heating water side
For sizing a circulation pump on site (when connecting to a DHW cyl-
inder connection set)
0 1000 2000 3000
0
100
200
300
400
500
600
Pressure drop in mbar
0
10
20
30
40
50
60
kPa
4000 5000 6000 7000
Flow rate in l/h
Vitodens 200-W (cont.)
VITODENS 200-W VIESMANN 13
5822 432 GB
1

2.1 Product description
Installation accessories for the Vitodens 200-W, 45 and 60 kW
Heating circuit connection set without circulation pump
Part no. 7245 738
Connections G 1½
Comprising:
■ Tee with ball valve
■ Boiler drain & fill valve
■ Safety valve
■ Gas shut-off valve with integral thermally activated safety shut-off
valve
■ Connection G1 for expansion vessel
Heating circuit connection set with variable speed high efficiency
circulation pump
Part no. 7501 311
Connections G 1½
Comprising:
■ Circulation pump
■ 2 tees with ball valve
■ Non-return valve
■ 2 boiler drain & fill valves
■ Safety valve
■ Gas shut-off valve with integral thermally activated safety shut-off
valve
■ Thermal insulation
■ Connection G1 for expansion vessel
DHW cylinder connection set
Part no. ZK00 657
Connections G 1½
Comprising:
■ Circulation pump
■ 2 ball shut-off valves
■ Non-return valve
■ Cylinder temperature sensor
Ball valve
Part no. 7247 373
1 pce G 1¼ with gasket and union nut.
Divicon heating circuit distributor
Construction and function
■ Available with R ¾ , R 1 and R 1¼ connections.
■ With heating circuit pump, check valve, ball valves with integral ther-
mometers and 3-way mixer or without mixer.
■ Quick and simple installation through pre-assembled unit and com-
pact design.
■ Low radiation losses through all-round thermal insulation shells.
Installation accessories
14 VIESMANN VITODENS 200-W
2
5822 432 GB

■ Low electricity costs and precise control characteristics through the
use of high efficiency pumps and optimised mixer curve.
■ Also available with staged pumps.
■ The bypass valve for hydraulic balancing of the heating system is
available as an accessory as a threaded component for inserting into
the prepared hole in the cast body.
■ The overflow valve may be required when using staged pumps to
prevent the heating system running noisily. It is mounted onto the
Divicon.
■ Individually wall mounted or with a double or triple manifold.
■ Also available as kit. For further details, see the Viessmann pricelist.
For part no. in conjunction with the different circulation pumps, see Viessmann pricelist.
The dimensions of the heating circuit distributor are the same, with or without mixer.
E
151
398
A
B
C
D
G 1½
98
120
HV HR
a
b
HV HRHV HR
Divicon with mixer (wall mounting without thermal insulation and with-
out mixer drive extension kit)
HR Heating return
HV Heating flow
AOverflow valve (accessory for multi stage circulation pump)
BBall valves with thermometer (as programming unit)
CCirculation pump
DBypass valve (accessory)
EMixer-3
Heating circuit connec-
tion
R ¾ 1 1¼
Flow rate (max.) m3/h 1.0 1.5 2.5
a (female) Rp ¾ 1 1¼
a (male) G 1¼ 1½ 2
b (female) Rp ¾ 1 1¼
b (male) G 1¼ 1¼ 2
Installation accessories (cont.)
VITODENS 200-W VIESMANN 15
5822 432 GB
2

142
398
A
B
C
HV HR
98
120
D
G 1½
a
b
HV HR
Divicon without mixer (wall mounting, shown without thermal insula-
tion)
HR Heating return
HV Heating flow
AOverflow valve (accessory for multi stage circulation pump)
BBall valves with thermometer (as programming unit)
CCirculation pump
DBall valve
Heating circuit connec-
tion
R ¾ 1 1¼
Flow rate (max.) m3/h 1.0 1.5 2.5
a (female) Rp ¾ 1 1¼
a (male) G 1¼ 1½ 2
b (female) Rp ¾ 1 1¼
b (male) G 1¼ 1¼ 2
Installation example: Divicon with triple manifold
HV HR
120 120 120
b
a
d
c
180 180
HV HR
(shown without thermal insulation)
HR Heating return
HV Heating flow
Dimensions Manifold with heating circuit connection
R ¾ and R 1 R 1¼
a 135 183
b 535 583
c 784 784
d G 1¼ G 2
Installation accessories (cont.)
16 VIESMANN VITODENS 200-W
2
5822 432 GB

Determining the required internal diameter
A
ΔT= 15K
ΔT= 20K
ΔT= 30K
ΔT= 5K
ΔT= 10K
C
B
D
2.5
2.5
Mixer control characteristics
2.0
0.1
0.2
0.5
1.0
1.5
5.0
Flow rate in m³/h
10 20 30 40531 0.1
0.2
0.5
1.0
1.5
2.0
5.0
Heating circuit output
in kW
ADivicon with mixer-3
The identified operating ranges B to D provide optimum control
characteristics with the Divicon mixer:
BDivicon with mixer-3 (R ¾)
Application range: 0 to 1.0 m 3/h
CDivicon with mixer-3 (R 1)
Application range: 0 to 1.5 m 3/h
DDivicon with mixer-3 (R 1¼)
Application range: 0 to 2.5 m 3/h
Example:
Heating circuit for radiators with an output of ² = 11.6 kW
Heating system temperature 75/60 °C (ΔT = 15 K)
c Specific heat capacity
µMass flow rate
²Output
´Flow rate
² = µ · c · ΔT c = 1.163 Wh
kg · K µ
²
c · ΔT =
kg
h
´ = 11600 W · kg · K
1.163 Wh · (75-60) K = 665 m³ h
0.665
´ (1 kg ≈ 1 dm³)
Select the smallest possible mixer within the application range with
value ´.
Result of this example: Divicon with mixer-3 (R ¾)
Bypass valve
Part no. 7464 889
To hydraulically balance the heating circuit with mixer. Inserted into
the Divicon.
Overflow valve
Part no. 7429 738: R ¾
Part no. 7429 739: R 1
Part no. 7429 740: R 1¼
Only with manually controlled heating circuit pump. Fitted onto the
Divicon.
Installation accessories (cont.)
VITODENS 200-W VIESMANN 17
5822 432 GB
2

Manifold
Incl. thermal insulation
Wall mounted with wall mounting bracket to be ordered separately.
The connection between boiler and manifold must be made on site.
For 2 Divicon
Part no. 7460 638 for Divicon R ¾ and R 1
HV HR HV HR
120
495
HV HR
120
135
120
A
180
G 1½ Rp ¾
AConnection option for expansion vessel
HV Heating water flow
HR Heating water return
Part no. 7466 337 for Divicon R 1¼
HV HR HV HR
120
495
HV HR
420
183
120
A
180
G 2
Rp ¾
G 2
AConnection option for expansion vessel
HV Heating water flow
HR Heating water return
Pressure drop
0
0 0.5 1 1.5 2
Flow rate in m³/h
0.5
1
1.5
2
3
2.5
3.5
2.5
Pressure drop kPa
A B
AManifold for Divicon R ¾ and R 1
BManifold for Divicon R 1¼
Installation accessories (cont.)
18 VIESMANN VITODENS 200-W
2
5822 432 GB

For 3 Divicon
Part no. 7460 643 for Divicon R ¾ and R 1
120
HV HR HV HR HV HR
120 120
784
HV HR
135
A
180 180
120
G 1½ Rp ¾
AConnection option for expansion vessel
HV Heating water flow
HR Heating water return
Part no. 7466 340 for Divicon R 1¼
120
HV HR HV HR HV HR
120 120
784
HV HR
183
A
180 180
420
G 2 Rp ¾ G 2
AConnection option for expansion vessel
HV Heating water flow
HR Heating water return
Pressure drop
0
0 0.5 1 1.5 2
Flow rate in m³/h
0.5
1
1.5
2
3
2.5
3.5
2.5
Pressure drop kPa
4
4.5
5
4.5
5.5
A B
AManifold for Divicon R ¾ and R 1
BManifold for Divicon R 1¼
Wall mounting bracket
Part no. 7465 894
for individual Divicon
With screws and dowels.
a
for Divicon with mixer without mixer
a mm 151 142
Part no. 7465 439
for manifold
With screws and dowels.
a
for Divicon R ¾ and R 1 R 1¼
a mm 142 167
Installation accessories (cont.)
VITODENS 200-W VIESMANN 19
5822 432 GB
2

Low loss header
Part no. 7460 649
Flow rate max. 4.5 m3/h
Including thermal insulation and integral sensor well.
The connection between boiler and low loss header must be made on
site.
120
HV HR
447
275
G 1½
A
Rp 1
B
350
HV HR
ASensor well
BOptional blow-down
HV Heating water flow
HR Heating water return
Pressure drop
Pressure drop kPa
001 2 3 4 5
Flow rate in m³/h
2
4
6
8
10
12
14
Part no. 7460 648
Flow rate max. 7.5 m3/h
Including thermal insulation and integral sensor well.
The connection between boiler and low loss header must be made on
site.
G 2
420
523
295
A
HV HR
Rp 2
G 2
B
420
HV HR
Pressure drop
Pressure drop kPa
001 2 3 4 5
Flow rate in m³/h
2
4
6
8
10
12
14
16
6 7 8
Circulation pump curves and pressure drop on the heating water side
The residual pump head results from the difference between the selec-
ted pump curve and the pressure drop curve of the respective heating
circuit distributor or further components (pipe assembly, distributor
etc.).
The following pump diagrams show the pressure drop curves of the
different Dicivon heating circuit distributors.
Maximum flow rate for Divicon:
Installation accessories (cont.)
20 VIESMANN VITODENS 200-W
2
5822 432 GB