Viessmann P10 Quick guide

Installation and service instructions
for contractors
VIESMANN
Solar-Divicon and solar pump assembly
Solar-Divicon and solar pump assembly
5838732 GB 3/2021 Please keep safe.

2
Please follow these safety instruc-
tions 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 environmen-
tal pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are exclusively inten-
ded for qualified contractors.
■Work on electrical equipment may only
be carried out by a qualified electrician.
■The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations to be observed
■National installation regulations
■Statutory regulations for the prevention
of accidents
■Statutory regulations for environmental
protection
■Codes of practice of the relevant trade
associations
■Relevant country-specific safety regu-
lations
Working on the system
■Isolate the system from the power sup-
ply (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 recon-
nection.
!Please note
Electronic assemblies can be dam-
aged by electrostatic discharge.
Prior to commencing any work,
touch earthed objects such as heat-
ing or water pipes to discharge
static loads.
Danger
Hot surfaces can cause burns.
■Before maintenance and service
work, switch OFF the appliance
and let it cool down.
■Never touch the hot surfaces of
uninsulated pipes and fittings.
Safety instructions
Safety instructions
5838732

3
Danger
Floors that are wet or damp with
water or glycol based liquids can
cause injury due to slipping and fall-
ing.
■Keep the floor clean and dry dur-
ing installation and maintenance
work.
■Wear non-slip shoes.
Danger
Broken-off fragments of insulation
material can cause death by suffo-
cation if inhaled or swallowed.
■Do not let children play in the
installation room.
■Keep the installation room clean
after installation and maintenance
work.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise the
safe operation of the system.
Replace faulty components only
with genuine Viessmann spare
parts.
Auxiliary components, spare and wearing parts
!Please note
Spare and wearing parts that have
not been tested together with the
system can compromise its func-
tion. Installing non-authorised com-
ponents and making non-approved
modifications or conversions can
compromise safety and may invalid-
ate our warranty.
For replacements, use only original
spare parts supplied or approved by
Viessmann.
Safety instructions
Safety instructions (cont.)
5838732

4
1. Information Disposal of packaging ............................................................................ 5
Symbols ................................................................................................. 5
Product information ................................................................................ 5
■Spare parts lists .................................................................................. 6
2. Preparing for installation Dimensions ............................................................................................ 7
■Solar-Divicon ...................................................................................... 7
■Solar pump assembly ......................................................................... 7
Connections and internal components .................................................. 8
■Function of internal components ........................................................ 9
Minimum clearances .............................................................................. 10
3. Installation sequence Notes ..................................................................................................... 11
Installing the locking ring fittings ............................................................ 11
Installing the Solar-Divicon .................................................................... 12
Installing the solar pump assembly ........................................................ 13
High limit safety cut-out (accessories) ................................................... 15
Electrical connections ............................................................................ 15
Flushing and filling the solar thermal system ......................................... 15
4. Maintenance Maintenance and service work .............................................................. 16
Replacing the circulation pump .............................................................. 16
■Pump curves ....................................................................................... 17
■LED on the HE circulation pump ........................................................ 18
5. Specification ................................................................................................................ 19
6. Disposal Final decommissioning and disposal ..................................................... 20
7. Keyword index ................................................................................................................ 21
Index
Index
5838732

5
Please dispose of packaging waste in line with statu-
tory regulations.
Symbols
Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
■Component must audibly click into place.
or
■Acoustic signal
■Fit new component.
or
■In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
Product information
The Solar-Divicon with solar pump assembly is a pre-
assembled unit for installation into the collector circuit.
Versions
Solar control unit Circulation pump
Without Vitosolic 100,
type SD1
SDIO/SM1A elec-
tronics module
Highly efficient, with
PWM control
Solar-Divicon
PS 10 X X X X
PS 20 X — — X
Information
Disposal of packaging
5838732
Information

6
Solar control unit Circulation pump
Without Vitosolic 100,
type SD1
SDIO/SM1A elec-
tronics module
Highly efficient, with
PWM control
Solar pump assembly
P 10 X — — X
P 20 X — — X
Components
■Pre-assembled and sealed valve and safety assem-
bly
■Flow rate indicator for checking the solar thermal
system during commissioning and operation: See
page 10.
■Ball valve with integrated check valve in flow and
return lines
■Drain & fill valve
■Air separator: See page 9.
■Shut-off valve (adjusting screw above flow rate indi-
cator): See page 10.
■Solar control unit, subject to version
Spare parts lists
Information about spare parts can be found at
www.viessmann.com/etapp or in the Viessmann
spare part app.
Information
Product information (cont.)
5838732
Information

7
Solar-Divicon
250
346
186
415
490
505
66
75 100
Fig. 1
Solar pump assembly
150
174
415
490
186
75
66
Fig. 2
Preparing for installation
Dimensions
5838732
Installation

8
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
C
O
O
Fig. 3
ASolar-Divicon
BSolar pump assembly
CThermometer
DSafety assembly (safety valve 6 bar, pressure
gauge 10 bar)
ECirculation pump
FShut-off valves
GNon-return valves
HShut-off valve
KDrain valve
LFlow indicator
MAir separator
NFill valve
OExpansion vessel connection
RL Return
VL Flow
Preparing for installation
Connections and internal components
5838732
Installation

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Air separator
B
A
Fig. 4
AAir vent valve
BHose connection
Function of internal components
Function of the shut-off and non-return valves
Left: Flow line
Right: Return line
Operating position
Vertical position
45° 90°
Filling/flushing
Flow ball valve rotated clockwise by 45°
Return ball valve rotated clockwise by 90°
45° 45°
Drain
Rotated clockwise by 45°
90° 90°
Closed
Rotated clockwise by 90°
Preparing for installation
Connections and internal components (cont.)
5838732
Installation

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Shut-off valve and flow rate indicator
A
B
1 2
4
3
Fig. 5
AShut-off valve (adjusting screw)
1 Flushing
2 Draining
3 Flow rate regulation
4 Operating position (depicted in the diagram)
BFlow indicator
Checking the flow rate at the top edge of the float
20
5
15
25
10
35
30
l/min
Fig. 6
Minimum clearances
Solar pump assembly to the right of the Solar-Divicon
PS10
PS20
P10
P20
300
900
200
Fig. 7
Solar pump assembly to the left of the Solar-Divicon
PS10
PS20
P10
P20
900
200 300
Fig. 8
Preparing for installation
Connections and internal components (cont.)
5838732
Installation

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■The Solar-Divicon and the solar pump assembly are
unsuitable for direct contact with swimming pool
water.
■Every time the system is drained, flush the system
with heat transfer medium.
■A tee is available for the purpose of connecting the
expansion vessel and the stagnation heat sink in the
flow.
■Install a thermal insulation loop if the expansion ves-
sel is installed higher than the Solar-Divicon.
■Use only bronze, brass or stainless steel fittings,
copper or stainless steel pipes or Viessmann stain-
less steel solar circuit pipes for the installation.
Use hemp only in conjunction with pressure and tem-
perature-resistant sealants.
■Check the sealing faces for cleanliness and damage
before assembly.
■The discharge pipe must exit into an open container.
Installing the locking ring fittings
Never fit annealed copper pipes onto the locking ring
fittings.
1. All pipes must be cut at right angles and deburred.
2. Insert support sleeves into pipework.
3. Push the union nut and locking ring onto the pipes.
Only the threads should be lubricated with oil.
Note
Never lubricate O-rings with oil.
4. Push the pipe into the locking ring fitting as far as it
will go.
5. Initially tighten the union nut by hand. Then tighten
with an open-ended spanner by a ¾ revolution.
Installation sequence
Notes
5838732
Installation

12
4.
Ø10
5.
2.
7.
3. 6.
1.
Fig. 9
1. Remove the insulation shell and cardboard trans-
port protection.
3. In addition, with type PS20:
Remove the spring clip before removing the flow
and return lines.
Installation sequence
Installing the Solar-Divicon
5838732
Installation

13
10.
8.
9.
Fig. 10
9. ■Installation with copper pipe:
Insert the support sleeve into the solar circuit
pipework. Secure it to the fitting connections.
■Installation with stainless steel solar circuit
pipe:
Trim and deburr in a valley of the corrugation. Do
not damage the peak of the corrugation.
Fit the union nut, half washer (in the 5th valley)
and O-rings (one in each of the 1st and 3rd val-
leys).
Installing the solar pump assembly
Maintain minimum clearances: See page 10.
Installation sequence
Installing the Solar-Divicon (cont.)
5838732
Installation

14
Ø10
4.
3.
2.
5.
1.
Fig. 11
2. In addition, with type PS20:
Remove the spring clip before removing the return
line.
7.
6.
Fig. 12
6. ■For installation with copper pipe
Insert the support sleeve into the solar circuit
pipework. Secure it to the fitting connections.
■For installation with stainless steel solar cir-
cuit pipe
Trim and deburr in a valley of the corrugation. Do
not damage the peak of the corrugation.
Fit the union nut, half washer (in the 5th valley)
and O-rings (one in each of the 1st and 3rd val-
leys).
Installation sequence
Installing the solar pump assembly (cont.)
5838732
Installation

15
Systems with DHW heating:
A high limit safety cut-out (accessories) must be instal-
led on the DHW side. The high limit safety cut-out
must be set to 95 °C.
High limit safety cut-out installation instructions
Electrical connections
Solar-Divicon:
■Version with solar control unit:
The circulation pump is connected to the solar con-
trol unit at the factory.
■Version without solar control unit:
Route the connecting cable for the circulation pump
downwards through the cable trunking. Connect the
cable to the heat pump control unit.
Other electrical connections:
Solar control unit installation and service instruc-
tions
Flushing and filling the solar thermal system
Solar collector service instructions
Installation sequence
High limit safety cut-out (accessories)
5838732
Installation

16
Information on the Solar-Divicon, type PS10 with
solar control unit
For maintenance and service work, the solar control
unit can be hooked into the side of the circulation
pump.
Replacing the circulation pump
1. Close shut-off valve F in the return line (see
Fig. 3 and page 8).
K
Fig. 13
2. Close shut-off valve H in the return line (see
Fig. 8).
Use a screwdriver to turn the slot on the adjusting
screw above the flow rate indicator to position "E".
3. Open drain valve K. Drain off the heat transfer
medium.
4. Replace the circulation pump.
Maintenance
Maintenance and service work
5838732
Maintenance

17
Pump curves
HE circulation pump with PWM control, types PS 10 and P 10
Head
0
10
kPa
0
100
mbar
20200
30300
40400
50500
60600
70700
80800
90900
0 0.5
Pump rate in m³/h
Pump rate in l/s
0 0.2
C
B
1.0 1.5 2.0 2.5 3.0 3.5 4.0
0.4 0.6 0.8 1.0
D
A
Fig. 14
AResidual head
BMaximum output
CPressure drop curve
DMinimum power
HE circulation pump with PWM control, types PS 20 and P 20
Pump rate in m³/h
Head
2.0
Pump rate in l/min
0 8.3 16.7 25 33.2
0 0.5 1.0 1.5
0
20
40
60
80
2.5
41.7
200
400
600
800
kPa
0
mbar
A
B
Fig. 15
APressure drop curve
BMax. delivery head
Maintenance
Replacing the circulation pump (cont.)
5838732
Maintenance

18
LED on the HE circulation pump
LED Meaning Cause Remedy
Illuminates green Circulation pump in opera-
tion
— —
Flashes green in short in-
tervals.
Circulation pump in stand-
by
— —
Fault indications
■Flashes red and green
alternately.
Circulation pump is ready
for operation but not run-
ning.
Note
The circulation pump
starts automatically after
the cause of the fault has
been removed.
■Undervoltage (< 160 V~)
■Overvoltage (> 253 V~)
Check the power supply:
195 V~ < U < 253 V~
Motor temperature too
high
Check ambient and heat
transfer medium tempera-
tures.
■Flashes red Circulation pump switched
off (blocked)
Circulation pump does not
start automatically.
Replace the circulation
pump: See page 16.
■LED off —No operating voltage Check connecting cable.
LED faulty Check whether the circula-
tion pump is running.
PCB faulty Replace the circulation
pump: See page 16.
Maintenance
Replacing the circulation pump (cont.)
5838732
Maintenance

19
Type PS 10, P 10 PS 20, P 20
Wilo circulation pump
High efficiency circulation pump PARA ST 15-130/7 PARA 15/7.5
Energy efficiency index EEI ≤ 0.2 ≤ 0.21
Rated voltage V~ 230 230
Power consumption
■Min. W 1.8 3
■Max. W 50.0 73
Flow indicator l/min 1 to 13 5 to 35
Safety valve (solar)
■At the factory bar/MPa 6/0.6 6/0.6
■Installation of 8 bar safety valve (accessory) bar/MPa 8/0.8 8/0.8
Max. operating temperature in return line °C 120 120
Max. operating temperature in flow line °C 150 150
Max. operating pressure bar/MPa 10/1 10/1
Connections (locking ring fitting/double O-ring)
■Solar circuit mm 22 22
■Expansion vessel mm 22 22
Specification
Specification
5838732
Service

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Viessmann products can be recycled. Components
and substances from the system are not part of ordi-
nary domestic waste.
For decommissioning, isolate the system from the
power supply and allow components to cool down
where appropriate.
All components must be disposed of correctly.
Disposal
Final decommissioning and disposal
5838732
Service