Viessmann Divicon Installation Instructions Manual

Installation instructions

for contractors

Divicon

Heating circuit distributor

Divicon

VIESMANN

5836498 GB 11/2018

Safety instructions

Please follow these safety instructions closely to prevent accidents and
material losses.

Safety instructions explained

Danger

This symbol warns against the
risk of injury.

Please note

This symbol warns against the

!

risk of material losses and envi­ronmental pollution.

Target group

These instructions are exclusively
intended for qualified contractors.

■ Work on gas installations may only
be carried out by a registered gas fit­ter.

■ Work on electrical equipment may
only be carried out by a qualified
electrician.

Regulations to be observed

■ National installation regulations

■ Statutory regulations for the preven­tion of accidents

■ Statutory regulations for environmen­tal protection

Note

Details identified by the word "Note"
contain additional information.

■ Codes of practice of the relevant
trade associations

■ All current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards

ÖNORM, EN,

a

ÖVGW G K directives,
ÖVGW-TRF and ÖVE
SEV, SUVA, SVGW, SVTI,

c

SWKI, VKF and EKAS guideline
1942: LPG, part 2

5836498

2

Safety instructions

(cont.)

Working on the system

■ Isolate the system from the power
supply (e.g. by removing the sepa­rate fuse or by means of a mains iso­lator) and check that it is no longer
'live'.

■ Safeguard the system against recon­nection.

■ Where gas is used as the fuel, close
the main gas shut-off valve and safe­guard it against unintentional reopen­ing.

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3

Index

Preparing for installation................................................................................... 5

Installation sequence

Wall mounting....................................................................................................... 6

■ Fitting a single module (without manifold)......................................................... 6

■ Fitting several modules with manifold (accessories)......................................... 8

Filling the system.................................................................................................. 15

Fitting the thermal insulation................................................................................ 16

■ Low loss header (if supplied)............................................................................ 16

■ Manifold............................................................................................................ 17

■ Divicon with mixer............................................................................................. 18

■ Divicon without mixer........................................................................................ 20

Extension kit with mixer PCB............................................................................... 22

■ Overview of electrical connections.................................................................... 22

■ Rotary switch S1............................................................................................... 23

■ Connecting the PlusBus to the heat generator control unit.............................. 23

■ Power supply.................................................................................................... 24

■ Connecting several accessories....................................................................... 26

■ Connection and wiring diagram........................................................................ 28

■ Changing the rotational direction (if required)................................................... 29

Specification....................................................................................................... 30

Declaration of conformity for extension kit..................................................... 31

4

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3.

2.

4.

1.

Preparing for installation

Removing the thermal insulation

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5

1.

2.

Ø 10

Wall mounting

Fitting a single module (without manifold)

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6

1.

2.

A

B

Wall mounting

(cont.)

A

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Heating flow

Heating return

B

7

Ø 10

300
500

2.

1.

Wall mounting

(cont.)

Fitting several modules with manifold (accessories)

Manifold for 2 Divicons

A

Manifold for 3 Divicons

B

8

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70

142

2.

1.

A

B

A

B

A

B

Wall mounting

(cont.)

Manifold (H = 70 mm) for 2 Divicons

A

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Heating flow

Heating return

B

9

2.

1.

A

B

A

B

A

B

100

167

Wall mounting

(cont.)

Manifold (H = 100 mm) for 2 Divicons

A

10

Heating flow

Heating return

B

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2.

1.

A

B

A

B

A

B

A

B

70

142

Wall mounting

(cont.)

Manifold (H = 70 mm) for 3 Divicons

A

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Heating flow

Heating return

B

11

2.

1.

A

A

B

A

B

A

B

B

100

167

Wall mounting

(cont.)

Manifold (H = 100 mm) for 3 Divicons

Heating flow

A

12

Heating return

B

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Wall mounting

(cont.)

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13

1.

3.

4.

2.

Wall mounting

(cont.)

Low loss header (if supplied)

A

14

Heating flow

Heating return

B

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1.

2.

Filling the system

1. For filling (with heating water), open

the check valve in the heating
return by positioning the slot of the
screw in the vertical position.

Note

Observe the marking on the adjust­ing screw.

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2. For operation, position the slot of
the screw in the horizontal position.

15

1.

3.

2.

Fitting the thermal insulation

Low loss header (if supplied)

16

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1.

2.

Fitting the thermal insulation

Manifold

(cont.)

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17

1.2.3.

A

B

3.

2.

3.

2.

1.

Fitting the thermal insulation

Divicon with mixer

Note

With several Divicons, first fit the ther­mal insulation on the right-hand Divi­con. For the remaining Divicons, fit the
insulation from right to left.

(cont.)

Cut off if fitting a single module to

A

the wall.

18

Cut out the thermal insulation if

B

connecting with a union nut.

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2.

3.

1.

Fitting the thermal insulation

(cont.)

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19

B

1.2.3.

1.

2.

2.

A

Fitting the thermal insulation

Divicon without mixer

Note

With several Divicons, first fit the ther­mal insulation on the right-hand Divi­con. For the remaining Divicons, fit the
insulation from right to left.

(cont.)

Cut off if fitting a single module to

A

the wall.

20

Cut out the thermal insulation if

B

connecting with a union nut.

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2.

3.

1.

4.

Fitting the thermal insulation

(cont.)

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21

L

?

N

?

N

jF jF

[{] [{] [{] [{]

fÖ

M
1~

230 V~/50 Hz

M
1~

L

?

N

L

?

N

gS

sÖ

? )

[{{]

Extension kit with mixer PCB

Note

Bundle individual wires from the con­necting cables directly below the plugs
and secure with cable ties.

Overview of electrical connections

Plug 230 V~
P1 sÖ
P3 gS

fÖ
fÖA

LV connections
PWM1 No function
TS1 ?
TS2 No function
TS3 )

jF

22

Heating circuit pump
Mixer motor
Power supply
Power supply for accessories

Flow temperature sensor

Temperature sensor, low loss
header
PlusBus

Please note

Electronic assemblies can be

!

damaged by electrostatic dis­charge.
Prior to commencing any work,
touch earthed objects such as
heating or water pipes to dis­charge static loads.

Note

Apply strain relief to on-site cables.
Seal any unnecessary apertures with
cable grommets (not cut open).

5836498

B

A

jF jF

[{][{][{]

DI1 DI2 DI3

12341

2

3

4

5

6

Extension kit with mixer PCB

Rotary switch S1

(cont.)

If several mixer extension kits are being
connected, set rotary switch S1.

Set the rotary switch on each extension
kit to a consecutive number:

■ Heating circuit with mixer M2: Rotary

switch to 1

■ Heating circuit with mixer M3: Rotary

switch to 2

■ Heating circuit with mixer M4: Rotary

switch to 3

Note

If additional EM-P1 extensions are con­nected, always set the subscriber num­bers for the EM-P1 extensions to con­secutive numbers after the mixer exten­sion kits.

Connecting the PlusBus to the heat generator control unit

A
B

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Extension
PlusBus to heat generator

Note

If making the connection to the heat
generator with an external plug for the
bus connection, connect the wires
directly.

Heat generator installation and
service instructions

23

L

?

N

L

?

N

156

LN

Extension kit with mixer PCB

Power supply

Power supply at the heat generator
control unit

Extension

A

Power supply

fÖ

Power supply for further accesso-

fÖA

ries
Plug for power supply to accesso-

aBH

ries in the heat generator control
unit

(cont.)

Create the power supply connection.
Route the power cable to the heat gen­erator control unit and connect to plug

.

aBH

If power is supplied to a further acces­sory, use plug fÖA provided

Heat generator installation and
service instructions

Danger

Incorrect core assignment can
result in serious injury and dam­age to the appliance.
Take care not to interchange
wires "L1" and "N".

Separate power supply

If the power supply for the extension is
not made at the heat generator control
unit.

Danger

Incorrect electrical installations
can lead to serious injury from
electrical current and result in
appliance damage.

Connect the power supply and
implement all safety measures
(e.g. RCD circuit) in accordance
with the following regulations:

■ IEC 60364-4-41

■ VDE regulations

■ Technical connection require­ments (TAB) specified by the
local grid operator

24

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L1

B

FE

D

D

N

C

A

40

Extension kit with mixer PCB

Danger

The absence of system compo­nent earthing can lead to seri­ous injury from electric current if
an electrical fault occurs.
The appliance and pipework
must be connected to the equi­potential bonding of the building.

(cont.)

Isolators for non-earthed conductors

■ The mains isolator (if installed) must
simultaneously isolate all non­earthed conductors from the mains
with a minimum contact separation of
3 mm.

■ If no mains isolator is installed, all
non-earthed conductors must be iso­lated from the power supply by the
upstream circuit breaker with a mini­mum contact separation of 3 mm.

Connect the power supply in accord­ance with the diagram.
If the power supply to the appliance is
connected with a flexible cable, ensure
that the live conductors are pulled taut
before the earth conductor in the event
of strain relief failure. The length of the
earth conductor wire will depend on the
design.

Danger

Incorrect core assignment can
result in serious injury and dam­age to the appliance.
Never interchange cores "L" and
"N".

Power supply for extension

A

Power supply for heat generator

B

C
D
E
F

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control unit
Power supply 1/N/PE, 230 V/50 Hz
Fuse (max. 16 A)
Mains isolator, 2-pole, on site
Junction box (on site)

Please note

Incorrect phase sequence can

!

cause damage to the appliance.
Ensure phase equality with the
power supply of the heat gener­ator control unit.

Colour coding to IEC 60757
BN Brown
BU Blue
GNYE Green/yellow

25

74

74

40A

40

74

74

40A

40

B C

74

40

96/156

A

74

74

40A

40

D

E

74

74

40A

40

74

74

40A

40

B C

74

40

96/156

A

74

74

40A

40

D

E

Extension kit with mixer PCB

(cont.)

Connecting several accessories

Power supply and PlusBus connection

Power supply to all accessories via heat generator control unit

Some accessories with direct power supply

A
B

C

D

26

Heat generator control unit
Mixer extension kit for heating
circuit with mixer M2
Mixer extension kit for heating
circuit with mixer M3
Further accessories

E

fÖ (A)
jF
lH/aBH

ON/OFF switch
Power supply
PlusBus
Accessories power supply in
the control unit of the heat
generator

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Extension kit with mixer PCB

■ In the following circumstances, use
the output for the accessories only to
switch an on-site relay:
An actuator (e.g. circulation pump)
with a higher power demand than the
fuse rating required for the accesso­ries is connected at the accessories
output.

■ In the following circumstances, con­nect one or more accessories directly
to the mains supply via an ON/OFF
switch:
The max. permissible total current of
the control unit for the heat generator
is exceeded.
Separate power supply: See the fol­lowing chapter.

Note

In this event, the accessories con­cerned cannot be isolated with the
ON/OFF switch on the control unit.

(cont.)

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27

Extension kit with mixer PCB

Connection and wiring diagram

(cont.)

A1 Mixer extension kit, ADIO control

unit

A2 PCB

230 V~ plugs
P1 sÖ
P3 gS

fÖ
fÖA

28

Heating circuit pump
Mixer motor
Power supply 230 V/50 Hz
Power supply for accessories

F1 Fuse
S1 Rotary switch

LV plugs
PWM1 No function
TS1 ?
TS2 No function
TS3 )

jF

Flow temperature sensor

Low loss header temperature
sensor (separate accessories)
PlusBus connection for con­necting to the heat generator
and another accessory

5836498

gS

BU

|

~

Extension kit with mixer PCB

(cont.)

Changing the rotational direction (if required)

1. Danger

An electric shock can be life
threatening.
Before opening the boiler,
disconnect it from the mains
voltage, e.g. at the fuse or
mains isolator.

Remove the casing cover (see
chapter "Overview of electrical con­nections").

2.

Switch cores BK and BK on
plug gS.

3. Refit the casing cover.

4. Check the rotational direction.

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29

10

1

10 30 50 70 90 110

Temperature in °C

0.4

0.6

0.8

2

4

6

8

20

Resistance in kΩ

Specification

Rated voltage 230 V∼
Rated frequency 50 Hz
Rated current 2 A
Power consumption 5.5 W
Protection class I
IP rating IP 20 D to EN 60 529; ensure through

design/installation.

Permissible ambient temperature

■ During operation 0 to +40 °C

■ During storage and transport –20 to +65 °C
Rated relay output breaking capacity

■ Heating circuit pump 1 A 230 V~

■ Mixer motor 0.1 A 230 V~

Flow temperature sensor/low loss header temperature sensor (separate
accessories)

Sensor type NTC 10 kΩ, at 25 °C
IP rating IP 53 to EN 60529; ensure through de-

sign/installation.

Permissible ambient temperature

■ Operation 0 to +120 °C

■ Storage and transport −20 °C to +70 °C

Curve

30

5836498

Declaration of conformity for extension kit

We, Viessmann Werke
GmbH & Co. KG, D-35107 Allendorf,
declare as sole responsible body that
the named product complies with the
European directives and supplementary
national requirements in terms of its
design and operational characteristics.

Conformity has been verified with the
CE designation. Using the serial num­ber, the full Declaration of Conformity
can be found on the following website:

www.viessmann.co.uk/eu-conformity

5836498

31

Viessmann Werke GmbH & Co. KG
D-35107 Allendorf
Telephone: [phone]
Fax: [phone]
www.viessmann.com

32

Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: [phone]
Fax: [phone]
E-mail: [e-mail]

5836498 Subject to technical modifications.