Viessmann Solar?Divicon, Solar-Divicon PS10, Solar-Divicon PS20, P10, P20 Installation And Service Instructions Manual

Installation and
service instructions

Solar−Divicon,

part no.7188391 and 7188392,

Solar circuit pump line, part no.7188393 and 7188394

Safety instructions

¨

Please observe these safety instructions.

Installation, initial start−up, inspection,
maintenance and repairs must be
carried out by a competent person
(heating engineer/installation
contractor).

Before working on the equipment/
heating system, isolate the power
supply (e.g. by removing a separate
mains fuse or by means of a mains
isolator) and safeguard against
unauthorised reconnection.

When using gas as fuel, also close
the main shut−off valve and safeguard
against unauthorised reopening.

It is not permitted to carry out repairs
on parts that fulfil a safety function.
For replacements, use only original
spare parts from Viessmann or those
which are approved by Viessmann.

Dimensions

A SolarDivicon
B Safety assembly

C Solar circuit pump line

5862810GB5/2005

Please keep safe

380

240

0

20

40

60

80

100

120 0

20

40

60

80

100

120

380

210

0

20

40

60

80

100

120

A

B

C

2

Assembly and installation information

H The Solar−Divicon comprises:

 pre−assembled and sealed valves

and safety assembly

 Flow regulating valve to control

the solar heating system during
the initial start−up and operation

 Non−return valve in the flow and

return pipe

H Always install Solar−Divicon so that

steam cannot enter the expansion
vessel in the event of stagnation.

H The Solar−Divicon and the solar

circuit pump line are not suitable
for direct contact with swimming
pool water.

H Flush the system with process

medium after draining.

H If the expansion vessel is installed

as high or higher than the
Solar−Divicon, a thermal insulation
loop is required.

H A pre−cooling vessel connection is

fitted to the flow line to protect the
expansion vessel against excess
temperatures.

H Use only gunmetal, brass fittings,

copper pipes or Viessmann
stainless steel solar circuit pipes
for the installation. Never use
galvanized/zinc−plated pipes,
fittings or graphitised gaskets. Use
hemp only in conjunction with
pressure and temperature−resistant
sealants (e.g. ViscotexSolarpaste,
Locher & Co. AG, CH9450Altstätten).
Components that come in contact
with process medium must be
resistant to the medium.

H Check the sealing surfaces for

cleanliness and damage before
assembly.

Installation of the locking ring fittings

H All pipes must be cut at a right

angle and deburred.

H Insert the support sleeves into the

pipework.

H Push the union nut and the locking

ring onto the pipe and lightly
lubricate the threads with oil.

H Push the pipe into the locking ring

fitting as far as it will go.

H Initially turn the union nut by hand,

then tighten with an open ended
spanner by a further ¾ turn.

H Never fit annealed copper pipes

onto the locking ring fittings.

5862810GB

3

Assembly and installation information (cont.)

System with SolarDivicon

A SolarDivicon
B Solar circuit pump line
C Collector
D Expansion vessel
E Manual solar fill pump
F Fill valve
G Shut−off valve
H Drain valve
K Filling assembly
L Connections to the DHW cylinder
M Air separator
N Solar control unit
O Air vent valve
P Pre−cooling vessel (if required)

System with SolarDivicon and solar
circuit pump line

Position the solar circuit pump line
to the right near the Solar−Divicon.
The Solar−Divicon pump acts as a
bypass pump, the solar circuit pump
line pump as a solar circuit pump. In
this case fit the safety assembly onto
the solar circuit pump line.

RL Return
VL Flow

5862810GB

A

C

O

N

L

M

G

K

F

E

D

TT

T

VL RL

H

P

D

B

C

O

L

M

G

K

F

E

D

TT

VL

RL

T

T

A

H

T

N

P

D

4

Fitting the Solar−Divicon

5862810GB

or

8mm

or

5.

3.

4.

1.

2.

3.

5

Fitting the Solar−Divicon (cont.)

1. Pull the upper section of the

thermal insulation forwards.

2. Secure the valve assembly
together with the lower part of the
thermal insulation.

3. Installation with copper pipes

Insert the support sleeves into the
interconnecting pipes of the solar
circuit.
Alternative:

Installation with stainless steel
solar circuit pipe

Trim (free of burrs) in the valley of
the corrugation; do not damage
the peak of the corrugation. Fit the
union nut, half washer (in the fifth
valley) and O−rings (in the first and
third valley).

4. Insert a support sleeve into the
connection pipe to the expansion
vessel and secure on the safety
assembly.

5. Secure the blow−off line with the
safety valve from the safety
assembly; ensure the correct
orientation of the locking ring.

Note

The blow−off line must terminate
in an open container.

6. Route the connecting cable for the
circulation pump downwards
through the cable duct and
connect to the solar control unit.

Installation and service
instructions  solar
control unit

7. Push the thermal insulation over
the valve assembly.

8. Push the thermal insulation of the
pipework into the recesses of the
thermal insulation of the
Solar−Divicon.

5862810GB

6.

7.