5773 841 GB 7/2014
Installation and serviceinstructionsfor contractors
VIESMANN
Solar-Divicon and solar pump assembly
Safety instructions
Please follow these safety instructions closely to prevent accidents andmaterial losses.
Safety instructions explained
NoteDetails identified by the word "Note" con-tain additional information.
Installation, commissioning, inspection,maintenance and repairs must only becarried out by a competent person (heat-ing engineer/installation contractor).
Before working on the equipment/heat-ing system, isolate the power supply(e.g. by removing a separate mains fuseor by means of a main isolator) and safe-guard against unauthorised reconnec-tion.
Repairing components that fulfil a safetyfunction can compromise the safe oper-ation of your heating system. For replacements, use only originalspare parts supplied or approved byViessmann.
Versions
Solar control unit Circulation pump With-
outVitosolic 100,type SD1
Solar controlmodule,type SM1
Multi stage Highly effi-cient, withPWM control
Solar-DiviconPS10 x x x x xPS20 x xSolar pump assemblyP10 x x xP20 x x
2
Pre-assembled and sealed valve andsafety assembly
Flow rate indicator (see page 4) forchecking the solar thermal system dur-ing commissioning and operation
Ball valve with integrated check valvein flow and return lines
Drain & fill valve Air separator (see page 4) Shut-off valve (adjusting screw above
the flow rate indicator, see page 4) Solar control unit, subject to version
E
A
E
D
C
P
N
K
F
H
F
M
C
G
E
L
C
G
K
F
H
C
G
E
L
B
VL RL
CO
O
A Solar-DiviconB Solar pump assemblyC ThermometerD Safety assemblyE Circulation pumpF Shut-off valves
G Non-return valvesH Shut-off valveK Drain valveL Flow rate indicatorM Air separatorN Fill valve
Components
5773
841
GB
3
O Expansion vessel connectionRL Return
VL Flow
Function of the shut-off and non-return valvesLeft: Flow lineRight: Return line
Operating positionVertical position
45 45 Filling/drainingRotated clockwise by 45
90 90 ClosedRotated clockwise by 90
Components (cont.)57
73 8
41 G
B
4
Shut-off valve and flow rate indicator
A
B
1 2
43
A Shut-off valve (adjusting screw)1 Flushing2 Draining3 Flow rate regulation4 Operating position (depicted in
the diagram)B Flow rate indicator
Check the flow rate at the top edge ofthe float
20
5
15
25
10
3530
l/min
Air separator
B
A
A Air vent valveB Hose connection
Components (cont.)
5773
841
GB
5
Dimensions
Solar-Divicon
250346
186
415 49
0 505
66
75 100
Installation information57
73 8
41 G
B
6
Solar pump assembly
150174
415 49
0
18675
66
Installing the locking ring fittings
All pipes must be cut at right anglesand deburred.
Insert support sleeves into pipework. Push the union nut and the locking ring
onto the pipe and lightly lubricate thethreads with oil.
Push the pipe into the locking ring fit-ting as far as it will go.
Initially tighten union nut by hand, thentighten with an open-ended spannerby a further revolution.
Never fit annealed copper pipes ontothe locking ring fittings.
Installation information (cont.)
5773
841
GB
7
Solar pump assembly to the right ofthe Solar-Divicon
Solar pump assembly to the left of theSolar-Divicon
PS10PS20
P10P20
300
900
200
PS10PS20
P10P20
900
200 300
Fitting the Solar-Divicon
The Solar-Divicon and the solar pumpassembly are unsuitable for direct con-tact with swimming pool water.
Every time the system is drained, flushthe system with heat transfer medium.
A tee connection is available for thepurpose of connecting the expansionvessel and the stagnation heat sink inthe flow.
Install a thermal insulation loop if theexpansion vessel is installed higherthan the Solar-Divicon.
Use only bronze, brass or stainlesssteel fittings, copper or stainless steelpipes or Viessmann stainless steelsolar circuit pipes for the installation.Use hemp only in conjunction withpressure and temperature-resistantsealants.
Check the sealing faces for cleanli-ness and damage before assembly.
The discharge pipe must exit into anopen container.
Clearances57
73 8
41 G
B
8
Note the information regarding individual steps.
10
8.
5.
2.
7.
1.
3. 6.
10.
4.
9.
9.
Fitting the Solar-Divicon (cont.)
5773
841
GB
9
Information on step 1:After you have removed the upper insu-lation shell, remove the transport protec-tion cardboard.
Information on step 3:Remove the flow and return lines tomake installation easier.If you are installing a Solar-Divicon, typePS20, remove the spring clip beforeremoving the flow and return lines.
Information on step 9:Versions: Installation with copper pipes
Insert the support sleeves into thesolar circuit pipes and secure withvalve connections.
Installation with stainless steelsolar circuit pipeTrim and deburr in the valley of thecorrugation; do not damage the peakof the corrugation.Fit the union nut, half washer (in the5th valley) and O-rings (in the 1st and3rd valley).
Information on the Solar-Divicon,type PS10 with solar control unitFor maintenance and service work, thesolar control unit can be hooked into theside of the circulation pump.
Electrical connections
Version with solar control unit:The circulation pump is connected tothe solar control unit at the factory.See the installation and serviceinstructions for further connections.
Version without solar control unit:Route the connecting cable for the cir-culation pump downwards through thecable trunking and connect it to thesolar control unit.See the installation and serviceinstructions for further connections.
Fitting the Solar-Divicon (cont.)57
73 8
41 G
B
10
Observe the clearances on page 7.
Note the information regarding individual steps.
10
1.
4.
7.
3.
2.
5.
6.
6.
Mounting the solar circuit pump assembly
5773
841
GB
11
Information on step 2:Remove the return line to make installa-tion easier.If you are installing a Solar-Divicon, typeP20 remove the spring clip beforeremoving the return line.
Information on step 6:Versions: Installation with copper pipes
Insert the support sleeves into thesolar circuit pipes and secure withvalve connections.
Installation with stainless steelsolar circuit pipeTrim and deburr in the valley of thecorrugation; do not damage the peakof the corrugation.Fit the union nut, half washer (in the5th valley) and O-rings (in the 1st and3rd valley).
Flushing and filling the solar thermal system
Solar collector service instruc-tions.
Electrical connections
Route the connecting cable for the cir-culation pump downwards through thecable trunking and connect it to the solarcontrol unit.
Solar control unit installation andservice instructions
Replacing the circulation pump
1. Close shut-off valve F in the returnline (see page 3).
2. Close shut-off valve H in the returnline: Use a screwdriver to turn the sloton the adjusting screw above the flowrate indicator to position "E".
Mounting the solar circuit pump assembly (cont.)57
73 8
41 G
B
12
K
3. Open drain valve K and drain theheat transfer medium.
4. Replace the circulation pump.
Replacing the circulation pump (cont.)
5773
841
GB
13
3-stage circulation pump
0 1 2 3Pump rate in m/h
Hea
d
0
10
20
30
40
D
50
60
0.5 1.5 2.5
A
0 16.7 33.2 508.3 25 41.7Pump rate in l/min
CB
kPa
mba
r
0
100
200
300
400
500
600
A Pressure drop curveB Head at output stage I
C Head at output stage IID Head at output stage III
Pump curves57
73 8
41 G
B
14
HE circulation pump with PWM control, types PS10 and P10
0 0.5 1.0 1.5Pump rate in m/h
Hea
d
0
20
40
60
80
2.0
A
B
Pump rate in l/min0 8.3 16.7 25 33.2
kPa
0
200
400
600
800
mba
r
A Pressure drop curve B Max. head
HE circulation pump with PWM control, types PS20 and P20
Pump rate in m/h
Hea
d
2.0
Pump rate in l/min0 8.3 16.7 25 33.2
0 0.5 1.0 1.50
20
40
60
80
2.5
41.7
200
400
600
800
kPa
0mba
r
A
B
A Pressure drop curve B Max. head
Pump curves (cont.)
5773
841
GB
15
LED Meaning Cause RemedyIlluminated green Circulation pump in
operation
Flashes green inshort intervals
Circulation pump instandby
Fault indications Flashes red and
green alternatelyCirculation pump isready for operationbu
