STIEBEL ELTRON SOM 8 PLUS Installation Manual

INSTALLATION

SOLAR CONTROLLER

» SOM 8 PLUS

295931-36390-8667 SOM 8 plus_en.indb 1 20.10.2011 13:14:19

2

Description of symbols

Signal words describe the danger that may occur,
when it is not avoided.

• WARNING means that injury, possibly life-threa­tening injury, can occur.

• ATTENTION means that damage to the appli­ance can occur.

Information about the product

Proper usage

The solar controller is designed for use in solar ther­mal systems and heating systems in compliance
with the technical data specied in this manual.

Improper use excludes all liability claims.

CE-Declaration of conformity

The product complies with the relevant di­rectives and is therefore labelled with the
CE mark. The Declaration of Conformity is
available upon request, please contact us.

Note

Notes are indicated with an information
symbol.

Subject to technical change. Errors excepted.

Î Arrows indicate instruction steps that should be

carried out.

WARNING!

Warnings are indicated with a
warning triangle!

Î They contain information

on how to avoid the danger
described.

Note

Strong electromagnetic elds can impair
the function of the controller.

Î Make sure the controller as well as the

system are not exposed to strong elec­tromagnetic elds.

Safety advice

Please pay attention to the following safety advice
in order to avoid danger and damage to people and
property.

Instructions

Attention must be paid to the valid local standards,
regulations and directives!

Target group

These instructions are exclusively addressed to au­thorised skilled personnel.

Only qualied electricians should carry out electrical
works.

Initial installation must be eected by qualied per­sonnel named by the manufacturer.

Disposal

• Dispose of the packaging in an environmentally
sound manner.

• Dispose of old appliances in an environmen­tally sound manner. Upon request we will take
back your old appliances bought from us and
guarantee an environmentally sound disposal of
the devices.

Read this manual carefully to get the best perfor­mance from this unit.

Please keep this manual carefully.

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Contents

1 Overview ........................................................4

1.1 Optional functions ......................................................5

2 Installation .....................................................5

2.1 Mounting .......................................................................5

2.2 Electrical connection .................................................6

2.3 Data communication / Bus ......................................7

2.4 SD card slot ....................................................................8

3 Step-by-step parameterisation ....................8

4 Operation and function ................................9

4.1 Buttons ............................................................................9

4.2 Selecting menu points and adjusting values ..9

4.3 Menu structure .........................................................11

5 Initial commissioning ................................. 12

5.1 Basic systems and hydraulic variants ................14

5.2 Overview of relay and sensor allocation..........15

6 Main menu .................................................. 30

7 Status ........................................................... 30

7.1 Solar .............................................................................. 30

7.2 Arrangement ............................................................. 30

7.3 Heating ........................................................................ 30

7.4 Messages ..................................................................... 30

7.5 Meas. / Balance values ............................................31

7.6 Service .......................................................................... 31

8 Solar ............................................................ 31

8.1 Basic solar settings...................................................31

8.2 Solar optional functions ........................................34

8.3 Solar expert menu ...................................................47

9 Arrangement .............................................. 47

9.1 Optional functions ................................................... 47

10 Heating ........................................................ 59

10.1 Demands ..................................................................... 60

10.2 Heating circuits ......................................................... 60

10.3 Optional functions ...................................................64

11 HQM ............................................................. 67

12 Basic settings .............................................. 69

13 SD card ........................................................ 69

14 Manual mode .............................................. 71

15 User code ..................................................... 72

16 In- / Outputs ................................................ 72

16.1 Modules ....................................................................... 72

16.2 Inputs ...........................................................................73

16.3 Outputs ........................................................................74

16.4 PWM-Proles..............................................................75

17 Troubleshooting ......................................... 76

18 Accessories .................................................. 80

18.1 Sensors and measuring instruments ................ 80

19 Index ............................................................ 81

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1 Overview

• Extra large graphic display

• 14 relay outputs

• 12 temperature sensors
(system-dependent)

• 4 inputs for Grundfos Direct Sensors™
(2 × analog, 2 × digital)

• 4 PWM outputs for speed control of high­eciency pumps

• Datalogging / rmware updates via SD memo­ry card

• 2 internal, weather-compensated heating
circuits

• Pre-programmed optional functions

• Drainback option

• Time-controlled thermostat function

• Heating period thermal disinfection

• VBus

®

• Energy-saving switch-mode power supply

Included:

1 x solar control unit
1 x accessory bag

3 x screw and wall plug
13 x strain relief and screw

Additionally enclosed in the full kit:
2 x FKP6 temperature sensor
4 x FRP6 temperature sensor

Technical data

SOM 8 plus

230933
Height mm 200
Width mm 253
Depth mm 43
IP-Rating IP20
Rated voltage V 100...240
Phases 1/N/PE
Frequency Hz 50...60
Total switching current A 6,3
Power consumption W < 1
Relay capacity A 1 (1)
Number of inputs 15
Number of switched outputs 14
Casing material

Plastic,

PC-ABS/PMMA

Ambient temperature °C 0...40

Note

The SD card is not included with the cont­roller. For more information about accesso­ries, see page 69

254

205

47

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2 Installation

2.1 Mounting

The unit must only be located in dry interior rooms.
The controller must additionally be supplied from a

double pole switch with contact gap of at least 3 mm
[0.12"].

Please pay attention to separate routing of sensor
cables and mains cables.

In order to mount the device to the wall, carry out
the following steps:

Î Unscrew the cross-head screw from the cover

and remove it along with the cover from the
housing

Î Mark the upper fastening point on the wall. Drill

and fasten the enclosed wall plug and screw lea­ving the head protruding

Î Hang the housing from the upper fastening

point and mark the lower fastening points (cen-

tres 223 mm [8.8"])
Î Insert lower wall plugs
Î Fasten the housing to the wall with the lower

fastening screws and tighten
Î Carry out the electrical wiring in accordance

with the terminal allocation, see chap. 2.2
Î Put the cover on the housing
Î Attach with the fastening screw

1.1 Optional functions

Solar

Bypass
CS Bypass
External heat exchanger
Tube collector
Target temperature
Antifreeze
Afterheating suppression
Parallel relay
Cooling mode
Drainback
Twin pump
Heat dump
Flow rate monitoring

Arrangement

Parallel relay
Mixer
Boiler loading
Error relay
Heat exchange
Solid fuel boiler
Circulation
Return preheating
Function block
Irradiation switch

Heating

Thermal Disinfection
DHW heating

WARNING!

Electric shock!

Upon opening the housing, live
parts are exposed.

Î Always disconnect the

controller from power supply
before opening the housing!

cover

screw

Note

Strong electromagnetic elds can impair
the function of the controller.

Make sure the controller as well as the sys­tem are not exposed to strong electroma­gnetic elds.

upper fastening point

lower fastening point

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2.2 Electrical connection

WARNING!

ESD damage!

Electrostatic discharge can lead to
damage to electronic components!

Î Take care to discharge

properly before touching the
inside of the device! To do
so, touch a grounded surface
such as a radiator or tap!

Note:

The pump speed must be set to 100 %
when auxiliary relays or valves are connec­ted.

input for analog
Grundfos Direct
Sensors™

input for digital
Grundfos Direct Sensors™

potential-free
changeover relay

sensor
ground common terminal block

sensor terminals

protective earth
conductor common
terminal block (PE)

neutral conductor
common terminal
block

Note

For more details about the initial commissi­oning procedure, see page 12.

Note

Connecting the device to the power supply
must always be the last step of the instal­lation!

The controller is equipped with 14 relays in total to
which loads such as pumps, valves, etc. can be con­nected:

Relays 1 ... 13 are semiconductor relays, designed for
pump speed control:

Conductor R1 ... R13
Neutral conductor N (common terminal block)

Protective earth conductor

(common terminal

block)
Relay 14 is a potential-free changeover relay:

R14-A = normally open contact
R14-M = centre contact
R14-R = normally closed contact

WARNING!

Electric shock!

Upon opening the housing, live
parts are exposed.

Î Always disconnect the

controller from power supply
before opening the housing!

Depending on the product version, mains cables
and sensor cables are already connected to the de­vice. If that is not the case, please proceed as follows:

Temperature sensors have to be connected to the
terminals S1 ... S12 and GND (either polarity).

PWM (0-10 V)
terminals

VBus

®

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2.3 Data communication / Bus

The controller is equipped with the VBus

®

for data

transfer with and energy supply to external modu­les. The connection is carried out at the two termi­nals marked VBus and GND (any polarity).

The terminals S13 to S15 can be used as impulse in­puts for V40 owmeters or as inputs for FS08 ow
switches.

V40 owmeters can be connected to the terminals
S13 / V40 to S15 / V40 and GND (either polarity).

Connect the irradiation sensor CS10 to the termi­nals CS10 and GND with correct polarity. To do so,
connect the cable marked GND to the GND common
terminal block, the cable marked CS to the terminal
marked CS10.

The terminals marked PWM are control outputs for
high-eciency pumps.

In the In-/Outputs menu, relays can be allocated to
the PWM outputs.

Connect the FlowRotor to the input marked Flow­Rotor.

Connect the analog Grundfos Direct Sensors™ to
the inputs GDSA1 and GDSA2.

Connect the digital Grundfos Direct Sensors™ to
the GDSD1 and GDSD2 inputs.

The controller is supplied with power via a mains
cable. The power supply of the device must be
100...240V~ (50...60Hz).

The mains connection is at the terminals:
Neutral conductor N

Conductor L
Conductor L' (L' is not connected with the mains
cable. L' is a fused contact permanently carrying
voltage)

Protectiv earth conductor

(common terminal

block)

Note:

For more information about accessories,
see page 80.

WARNING!

Electric shock!

L‘ is a fused contact permanently
carrying voltage

Î Always disconnect the

controller from power supply
before opening the housing!

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2.4 SD card slot

The controller is equipped
with an SD card slot.

With an SD card, the following
functions can be carried out:

• Store measurement and
balance values onto the SD
card. After the transfer to a
computer, the values can
be opened and visualised, e. g. in a spreadsheet
programme.

• Prepare adjustments and parameterisations on a
computer and transfer them via the SD card.

• Store adjustments and parameterisations on the
SD card and, if necessary, retrieve them from
there.

A standard SD card is not included.
For more information about using an SD card, see

page 69.

3 Step-by-step parameterisation

The SOM 8 plus is a controller that oers a broad
variety of functions to the user. At the same time,
the user has a lot of freedom in congurating them.
Therefore, to set up a complex system, careful plan­ning is required. We recommend drawing a sketch of
the system rst.

If planning, hydraulic execution and electrical con­nection have all been carried out successfully, pro­ceed as follows:

1. Runningthecommissioningmenu

The commissioning menu is run after the rst con­nection and after every reset. It will request the fol­lowing basic adjustments:

• Menu language

• Temperature unit

• Volume unit

• Pressure unit

• Energy unit

• Time

• Date

• Solar system

• Hydraulic variant
At the end of the commissioning menu, a safety en-

quiry follows. If the safety enquiry is conrmed, the
adjustments are saved.

For further information about the commissioning
menu see page 12.

2. Registeringsensors

If owmeters, ow switches, Grundfos Direct Sen­sors™ and/or external extension modules are con­nected, these have to be registered in the In-/Out­puts menu.

For further information about the registration of mo­dules and sensors see page 72.

3. Activatingsolaroptionalfunctions

The basic solar system has been adjusted during
commissioning. Now, optional functions can be se­lected, activated and adjusted.

Free relays can be allocated to optional functions
which require a relay. The controller always suggests
the numerically smallest free relay.

Sensors can be allocated to more than one function.
For further information about the solar optional

functions see page 34.

4. Activatingoptionalarrangementfunctions

Now, optional functions for the non-solar part of the
arrangement can be selected, activated and adjus­ted.

Free relays can be allocated to optional functions
which require a relay. The controller always suggests
the numerically smallest free relay.

Sensors can be allocated any number of times wit­hout impairing any other functions.

For further information about the optional arrange­ment functions see page 47.

5. Adjustingheatingcircuitsandactivatingop­tionalheatingfunctions

Now, heating circuits can be activated and adjusted.
Internal heating circuits are only oered as long as at
least 3 relays are free.

For the heating part of the arrangement, optional
functions can be selected, activated and adjusted.

To heating circuits and optional functions which re­quire one or more relays, the corresponding number
of free relays can be allocated. The controller always
suggests the numerically smallest free relay.

Sensors can be allocated any number of times wit­hout impairing any other functions.

For further information about heating circuits and
optional heating functions see page 59.

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4 Operation and function

4.1 Buttons

The controller is energised via the 7 buttons next to
the display.They have the following functions:

Button

1

- scrolling upwards

Button

3

- scrolling downwards

Button

- increasing adjustment values

Button

4

- reducing adjustment values

Button

5

- conrming

Button

6

- entering the status menu / chimney
sweeper mode (system-dependent)

Button

7

- escape button for changing into the
previous menu

1

2

4

6

3

5

7

4.2 Selecting menu points and adjusting
values

During normal operation of the controller, the dis­play is in the main menu. If no button is pressed for a
few seconds, the display illumination goes out.

Press any key to reactivate the display illumination.

Î In order to scroll through a menu or to adjust

a value, press either buttons

1

and 3 or but-

tons and

4

Î To open a submenu or to conrm a value, press

button 5

Î To enter the status menu, press button

6

– un-

conrmed adjustments will not be saved

Î To switch one menu level upwards press

button

7

– unconrmed adjustments will not

be saved

If no button has been pressed within a couple of mi­nutes, the adjustment is cancelled and the previous
value is retained.

If the symbol

» is shown behind a menu item, pres-

sing button 5 will open a new submenu.

If the symbol + is shown in front of a menu item,
pressing button 5 will open a new submenu. If it is
already opened, a – is shown instead of the +.

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Values and adjustments can be changed in dierent
ways:

Numeric values can be adjusted by means of a slide
bar. The minimum value is indicated to the left, the
maximum value to the right. The large number abo­ve the slide bar indicates the current adjustment. By
pressing buttons

or 4 the upper slide bar can

be moved to the left or to the right.
Only after the adjustment has been conrmed by

pressing button

5

will the number below the sli­de bar indicate the new value. The new value will be
saved if it is conrmed by pressing button 5 again.

current value savedminimum value maximum value

adjusted value
(not yet conrmed)

adjustment channel

When two values are locked against each other, they
will display a reduced adjustment range depending
on the adjustment of the respective other value.

In this case, the active area of the slide bar is shor­tened, the inactive area is indicated as a dotted line.
The indication of the minimum and maximum valu­es will adapt to the reduction.

active area inactive area

If only one item of several can be selected, they will
be indicated with "radio buttons". When one item
has been selected, the radio button in front of it is
lled.

If more than one item of several can be selected, they
will be indicated with checkboxes. When an item has
been selected, an x appears inside the checkbox.

The time frames for the timer can be adjusted in
steps of 15 minutes on a time line.

The cursor can be moved along the time line by
pressing buttons

or 4. The beginning of a

time frame can be determined by pressing button

1

.

The end of a time frame can be determined by pres­sing button

3

.

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4.3 Menu structure

Main menu

Status

Solar

Arrangement

Heating

HQM

Basic settings

SD card

Manual mode

User code

In- / Outputs

Expert

Solar

Basic settings

Optional functions

Expert

Arrangement

Optional functions

Basic settings

System

Collector

Store

Loading logic

Optional functions

Parallel relay

Mixer

Store loading

Error relay

...

Heating

Demands

Heating circuits

Optional functions

Parallel relay

Relay

Reference relay

Overrun

Delay

Inverted

...

The menu items and adjustment values selec­table are variable depending on adjustments
already made. The gure only shows an exem­plary excerpt of the complete menu in order to
visualise the menu structure.

Basic settings

Language

Auto DST

Date

Time

Temp. unit

Vol. unit

...

In- / Outputs

Modules

Inputs

Outputs

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5 Initial commissioning

When the hydraulic system is lled and ready for
operation, connect the controller to the mains.

The controller runs an initialisation phase in which
the directional pad ashes red.

When the controller is commissioned for the rst
time or when it is reset, it will run a commissioning
menu after the initialisation phase. The commissio­ning menu leads the user through the most impor­tant adjustment channels needed for operating the
system.

Commissioning menu

The commissioning menu consists of the channels
described in the following. In order to make an ad­justment, push button

5

. Adjust the value by pres­sing buttons 4 and 2, then bush button 5 to
conrm. The next channel will appear on the display.

5

5

adjustment mode

button navigation

changing a value

conrming a value

next parameter appears auto-

matically

2

4

1. Language:

Î Adjust the desired menu language.

2. Units:

Î Adjust the desired temperature unit.

Î Adjust the desired volume unit.

Î Adjust the desired pressure unit.

Î Adjust the desired energy unit.

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4. Time:

Î Adjust the clock time. First of all adjust the

hours, then the minutes.

5. Date:

Î Adjust the date. First of all adjust the year, then

the month and then the day.

3. Daylightsavingstimeadjustment:

Î Activate or deactivate the automatical daylight

savings time adjustment.

7. Completingthecommissioningmenu:

After the system has been selected, a security enqui­ry appears. If the enquiry is conrmed, the adjust­ments will be saved.

Î In order to conrm the security enquiry, press

button

5

.

Î In order to reenter the commissioning menu

channels, press button

7

.

If the security enquiry has been conrmed, the con­troller is ready for operation and should enable an
optimum system operation.

All adjustments made during commissioning can, if
necessary, be changed later on in the basic settings
menu.

6. Selectionofthesolarsystem:

Î Adjust the desired solar system (number of coll-

ectors and stores, hydraulic variants).

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5.1 Basic systems and hydraulic variants

The controller is preprogrammed for 9 basic systems.
The selection depends on the number of heat sour­ces (collector elds) and heat sinks (stores, pool).
Factory setting is system 1.

A solar system with store loading in layers is im­plemented as a 2-store system

(store top = store 1; store bottom = store 2).

The selection of the basic solar system is one of the
most important adjustments and is thus requested
already in the commissioning menu.

First, the basic system is adjusted by means of the
number of stores and collectors elds, then the hy­draulic variant.

The selected system is visualised by the correspon­ding number of store and collector symbols. The ­gure to the left shows system 6 which consists of 3
stores and 2 collector elds ("east- / west collectors").

System 0: no solar system
System 1: 1 collector eld - 1 store
System 2: east- / west collectors - 1 store
System 3: 1 collector eld - 2 stores
System 4: east- / west collectors - 2 stores
System 5: 1 collector eld - 3 stores
System 6: east- / west collectors - 3 stores
System 7: 1 collector eld - 4 stores
System 8: east- / west collectors - 4 stores
System 9: 1 collector eld - 5 stores

System

Variant

The hydraulic variant refers to the dierent actuators
that are to be controlled. They are visualised on the
display by means of symbols, when the variant is
selected. The upper symbol indicates the actuator
belonging to the collector elds, the lower one the
actuators belonging to the stores.

The exemplary gure shows the display indicated
when system 6, variant 2 has been selected. In this
case, each collector eld has a 2-port valve, the
stores are loaded by means of pump logic.

For each variant, the controller allocates the corre­sponding relays and sensors. The allocations of the
most important combinations are shown in 5.2.

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5.2 Overview of relay and sensor allocation

System 1

R1

S1

S2

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay Solar pump Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function

Sensor Collector 1 Store base Free Free Free Free Free Free Free Free

System 2 variant 1

S1 S6

R1 R2

S2

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay Pump coll. 1 Pump coll. 2 Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function

Sensor Collector 1 Store base Free Free Free Collector 2 Free Free Free Free

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S1 S6

R1 R2

S2

R3

System 2 variant 2

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay 2PV coll. 1 2PV coll. 2 Solar pump Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function Opt. function

Sensor Collector 1 Store base Free Free Free Collector 2 Free Free Free Free

System 3 variant 1

S1

R2

R1

S2

S4

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay Solar pump

3PV

store 2

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector Store 1 base Free Store 2 base Free Free Free Free Free Free

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System 3 variant 2

S1

R1 R2

S4S2

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

store 1

Solar pump

store 2

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor Collector Store 1 base Free Store 2 base Free Free Free Free Free Free

System 3 variant 3

R1

R2 R3

S2 S4

S1

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay Solar pump

2PV

store 1

2PV

store 2

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Sensor Collector Store 1 base Free Store 2 base Free Free Free Free Free Free

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System 4 variant 1

R1

R2

R3

S2 S4

S1 S6

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Pump coll. 1 Pump coll. 2

3PV

store 2

Optional

function

Optional

function

Optional

function

Optional
function

Optional

function

Optional

function

Optional

function

Sensor

Collector 1 Store 1 base Free Store 2 base Free Collector 2 Free Free Free Free

System 4 variant 2

R1

R2

S1 S6

R3 R4

S4S2

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Pump coll. 1 Pump coll. 2

2PV

store 1

2PV

store 2

Optional

function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Free Collector 2 Free Free Free Free

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System 4 variant 3

R1

R2

S1 S6

R3

R4

S4S2

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

2PV coll. 1 2PV coll. 2

Solar pump

store 1

Solar pump

store 2

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Sensor

Collector 1 Store 1 base Free Store 2 base Free Collector 2 Free Free Free Free

System 4 variant 4

R1

R2

S2 S4

R4

S1 S6

R3

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

2PV coll. 1 2PV coll. 1 Solar pump

3PV

store 1

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Sensor

Collector 1 Store 1 base Free Store 2 base Free Collector 2 Free Free Free Free

295931-36390-8667 SOM 8 plus_en.indb 19 20.10.2011 13:14:28

20

System 5 variant 1

S1

R1

R2 R3 R4

S2 S4 S5

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

2PV

store 1

2PV

store 2

2PV

store 3

Optional

function

Optional
function

Optional

function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Free Free Free Free Free

System 5 variant 2

S1

R1 R2 R3

S5S4S2

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

store 1

Solar pump

store 2

Solar pump

store 3

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Free Free Free Free Free

295931-36390-8667 SOM 8 plus_en.indb 20 20.10.2011 13:14:28

21

System 5 variant 3

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

3PV

store 1

3PV

store 2

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Free Free Free Free Free

S1

S2 S4 S5

R1

R3

R2

System 6 variant 1

R1 R2

S6S1

S2 S4 S5

R5R4R3

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Pump coll. 1 Pump coll. 2 2PV store 1 2PV store 2 2PV store 3

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Free Free Free Free

295931-36390-8667 SOM 8 plus_en.indb 21 20.10.2011 13:14:29

22

System 6 variant 2

S1 S6

S2 S4 S5

R1 R2 R3

R5R4

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

store 1

Solar pump

store 2

Solar pump

store 3

2PV coll. 1 2PV coll. 2

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Free Free Free Free

System 6 variant 3

S2 S4 S5

S1 S6

R1 R2

R3

R4 R5 R6

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

2PV coll. 1 2PV coll. 2 Solar pump

2PV

store 1

2PV

store 2

2PV

store 3

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Free Free Free Free

295931-36390-8667 SOM 8 plus_en.indb 22 20.10.2011 13:14:29

23

S2 S4 S5

S1 S6

R1

R2

R3 R4

System 6 variant 4

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Pump coll. 1 Pump coll. 2 3PV store 1 3PV store 2

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Free Free Free Free

System 6 variant 5

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

2PV coll. 1 2PV coll. 2 Solar pump

3PV

Store 1

3PV

Store 2

Optional
function

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Free Free Free Free

S1

S2 S4 S5

R3

R5

R4

R2

S6

R1

295931-36390-8667 SOM 8 plus_en.indb 23 20.10.2011 13:14:30

24

System 7 variant 1

S2 S4 S5

S1

S6

R1

R2 R3 R4 R5

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

2PV

store 1

2PV

store 2

2PV

store 3

2PV

store 4

Optional
function

Optional

function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Store 4 base Free Free Free Free

System 7 variant 2

S2 S4 S5

S1

S6

R1

R2 R3 R4

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

3PV

store 1

3PV

store 2

3PV

store 3

Optional
function

Optional
function

Optional

function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Store 4 base Free Free Free Free

295931-36390-8667 SOM 8 plus_en.indb 24 20.10.2011 13:14:30

25

System 7 variant 3

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

store 1

Solar pump

store 2

Solar pump

store 3

Solar pump

store 4

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Optional

function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Store 4 base Free Free Free Free

S1

S2 S4 S5 S6

R1 R2 R3 R4

System 8 variant 1

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Pump coll. 1 Pump coll. 2

2PV

store 1

2PV

store 2

2PV

store 3

2PV

store 4

Optional
function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Store 4 base Free Free Free

S1

S2 S4 S5 S7

R4

R5

R3

R2

S6

R1

R6

295931-36390-8667 SOM 8 plus_en.indb 25 20.10.2011 13:14:30

26

System 8 variant 2

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Pump coll. 1 Pump coll. 2

3PV

store 1

3PV

store 2

3PV

store 3

Optional
function

Optional

function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Store 4 base Free Free Free

S1

S2 S4 S5 S7

R3

R2

S6

R1

R4

R5

System 8 variant 3

Relay / sensor allocation

1 2 3 4 5 6 7 8 9 10-14

Relay

Solar pump

store 1

Solar pump

store 2

Solar pump

store 3

Solar pump

store 4

2PV coll. 1 2PV coll. 2

Optional

function

Optional
function

Optional
function

Optional
function

Sensor

Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Store 4 base Free Free Free

S1

S2 S4 S5 S7

R2

R3

R1

R6

S6

R5

R4

295931-36390-8667 SOM 8 plus_en.indb 26 20.10.2011 13:14:31