STIEBEL ELTRON SOM9s User Manual

Simply the Best

Installation Operation Functions and options Troubleshooting

SOM 9s

Thank you for buying this product. Read this manual carefully to get the best performance from this unit.

*49012850*

49012850

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en-US/CA

Manual

SOM 9s

Contents

1 Overview ............................................................. 3

2 Installation .......................................................... 4

2.1 Mounting ....................................................................4

2.2 Electrical connection ...............................................4

2.3 Data communication / Bus ....................................6

2.4 SD card slot ..............................................................6

2.5 Overview of the systems .......................................7

2.6 System layouts ..........................................................9

3 Operation and function ................................... 69

3.1 Buttons .................................................................... 69

3.2 Selecting menu points and adjusting values ... 69

3.3 Menu structure ...................................................... 69

3.4 Indications and system monitoring display......70

3.5 Further indications ............................................... 71

4 Status menu ..................................................... 72

5 Initial commissioning ....................................... 73

General

Safety advice:

Please read the following information carefully before installing and operating the controller. In this way damage to the solar system caused by wrong installation will be avoided. Please make sure that the mounting is adapted to the characteristics of the building, that the local regulations are respected and is conform with the technical rules.

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

6 Functions and options ..................................... 75

6.1 Status level .............................................................. 75

6.2 Adjustment channels ............................................ 78

6.3 Overview of options and their parameters .... 94

7 User code and short menu -

Adjustment values ............................................ 96

8 Messages ........................................................... 97

9 Troubleshooting ............................................... 98

9.1 Miscellaneous ......................................................... 99

10 Accessories .................................................... 101

10.1 Sensors and measuring instruments ............... 101

10.2 Interface adapters ............................................... 101

10.3 Visualization modules ........................................102

11 Index ................................................................ 103

Subject to technical change. Errors excepted.

Instructions:

Attention should be paid to

• Valid national and local standards and regulations

• Respective valid standards and directives

Equipment to be installed and used in accordance with the rules of the National Electrical Code (NEC) or with Canadian Electrical Code (CEC), Part I.

These instructions are exclusively addressed to authorized skilled personnel.

• Only qualied electricians should carry out installation and

maintenance work.

• Initial installation should be carried out by qualied personnel

Description of symbols

WARNING! Warnings are indicated with a

warning triangle! They contain information on how to avoid the danger described.

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

WARNING means that injury, possibly life-threatening injury, can occur. ATTE NTIO N means that damage to the appliance can occur.

Note

Notes are indicated with an information symbol.

Î Arrows indicate instruction steps that should be car-

ried out.

| 2

Information about the product

Proper usage

The solar controller is designed for use in solar thermal and heating systems in compliance with the technical data

specied in these instructions.

Improper use excludes all liability claims.

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 electro-

magnetic elds.

SOM 9s

1 Overview

• Extralargegraphicdisplay

• 4relayoutputs

• 7sensorinputs,

2 of them for Grundfos Direct Sensors™

• 2PWMoutputsforspeedcontrolofhighefciencypumps

• DataloggingontoSDcard

• Drainbackoption

• Time-controlledthermostatfunction

• VBus

®

• Energy-savingswitch-modepowersupply

Included:

1 x SOM 9s 1 x accessory bag

3 x screw and wall plug 8 x strain relief and screw

Additionally included in the full kit:

2 x FKP6 sensor 2 x FRP6 sensor

Note:

For more information about accessories, see p. 101.

Note:

The SD card is not included with the controller

Technical data Housing:

plastic, PC-ABS and PMMA

Protection type: IP 20 / EN 60 529 Protection class: I Ambient temp.: 32 ... 104 °F Dimensions: 204 x 170 x 47 mm Mounting: wall mounting, also suitable for mounting into

patch panels Display: System-Monitoring-Display for system visuali-

zation, 16-segment display, 7-segment display, 8 symbols, control lamp (directional pad) and background illumination

Operation: 7 push buttons at the front of the housing Functions: System controller for solar and heating sys-

tems. Functions such as: DT control, pump speed control,

Inputs:

5 inputs for Pt1000 temperature sensors, inputs for 1 Grundfos Direct Sensor™ VFS and 1 Grundfos Direct Sensor™ RPS, 1 Impulse input V40

Outputs:

3 semiconductor relays, 1 standard relay, 2 PWM outputs Interfaces: VBus

®

, SD card slot

Power supply: 100 ... 240 V~, 50 ... 60 Hz

Switching capacity per relay: 1 (1) A 100 ... 240 V~ (semiconductor relay) 2 (1) A 100 ... 240 V~(standard relay)

Total switching capacity: 4 A Standby power consumption: < 1W Mode of operation: type 1.Y

energy metering, operating hours counter for the solar pump, evacuated tube collector function, thermostat function, vertical tank loading, priority logic, drainback option, booster function, heat dump function, thermal disinfection function, PWM pump control.

3 |

SOM 9s

2 Installation

2.1 Mounting

screw

cover

upper fastening

point

lower fastening point

WARNING! Electric shock!

Upon opening the housing, live parts are exposed.

Î Always disconnect the control-

ler from power supply before opening the housing!

Note Strong electromagnetic fields can impair the function of the controller. Î Make sure the controller as well as the

system are not exposed to strong electro-

magnetic elds.

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. Please pay attention to separate routing of sensor cables

and power supply 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 re-

move 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 (centres 150 mm) 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

2.2 Electrical connection

| 4

ATTENTION! ESD damage!

Electrostatic discharge can lead to damage to electronic components!

Î Take care to discharge proper-

ly 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.

SOM 9s

VFS

RPS

Te mp. Sensor

Pt1000

S3

S1

S2

S4

S5

GND

1

PWM

2

PWM

T4A

100 ... 240V~

R1-R3

1 (1)A (100 ... 240)V~ 2 (1)A (100 ... 240)V~

R4

L

L'

R4

V40

VBus

R3

R1

R2

N

WARNING! Electric shock!

Upon opening the housing, live parts are exposed.

Î Always disconnect the control-

ler from power supply before opening the housing!

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

The controller is equipped with 4 relays in total to which loads such as a pump, a valve, etc. can be connected:

• Relays R1 ... R3 are semiconductor relays, designed for

pump speed control Conductor R1... R3

Note:

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

Neutral conductor N Ground terminal

• Relay 4 is a standard relay Conductor R4 Neutral conductor N Ground terminal

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

Connect the temperature sensors (S1 to S5) to the corresponding terminals with either polarity:

S1 = sensor 1 (collector sensor ) S2 = sensor 2 (e. g. tank sensor bottom) S3 = sensor 3 (e. g. tank sensor top) S4 = sensor 4 (e. g. tank sensor tank 2)

Note:

The connection depends on the system selected, see chap. 2.6. “System layouts”

S5 = sensor 5 (e. g. collector sensor collector 2)

Connect the Grundfos sensors to the VFS and RPS inputs. A V40owmeter can be connected to the terminals V40

and GND (either polarity). The terminals marked “PWM” are control outputs for a

WARNING! Electric shock!

L' is a fused contact permanently carrying voltage

Î Always disconnect the control-

ler from power supply before opening the housing!

high-efciency pump (PWM1 is allocated to R1 and PWM2

is allocated to R2).

The power supply connection is at the terminals: Neutral conductor N

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

Note:

Ground terminal

For more details about the initial commissioning procedure, see chap. 5, page 73.

5 |

SOM 9s

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). One or more VBus® modules can be connected via this data bus, such as:

• GA3 Large display module / Smart Display SD3

• AM1 Alarm module

• DL2 Datalogger

Furthermore, the controller can be connected to a PC via the VBus included with the SOM 9s). With the ServiceCenter Software (RSC), measured values can be read, processed and visualized. The software allows easier function control and adjustment of the system.

®

/USB or VBus®/LAN interface adapter (not

Note:

For more information about accessories, see p. 101.

2.4 SD card slot

The controller is equipped with an SD card slot for storing system data onto an SD card. The values can be opened and visualized, e. g. in a spreadsheet programme.

Note:

Do not use an SD-HC card!

A standard SD card is not included with the SOM 9s. For more information about using an SD card, see chap. 6.2

(page 93) “SD card“.

| 6

SOM 9s

2.5 Overview of the systems

1 2 3 4

Standard solar system with 1 tank (page 9)

Solar system with 2 tanks and heat exchange (page 11)

Solar system with 1 tank and backup heating (page 13)

Solar system with 1 tank and 3-port valve for vertical tank loading (page 15)

5 6 7 8

2-tank system with valve logic, 1 pump, 3 sensors and 3-port valve (page 17)

2-tank solar system with pump logic (page 19)

Solar system with east-/west collectors (page 21)

Solar system with 1 tank and backup heating with solid fuel boiler (page23)

9 10 11 12

Solar system with 1 tank and heating circuit return preheating (page 25

Solar system with 1 tank, heating circuit return preheating and thermostatic backup heating (page 27)

Solar system with vertical tank loading and heat exchange control (page 29)

Solar system with vertical tank loading and thermostatic backup heating (page 31)

13 14 15 16

Solar system with vertical tank loading and backup heating with solid fuel boiler (page 33)

Solar system with vertical tank loading and return preheating (page 35)

Solar system with vertical tank loading and backup heating with heating backup (page 37)

2-tank solar system with valve logic and heat exchange control (page 40)

17 18 19 20

2-tank solar system with pump logic and heat exchange control (page 42)

Solar system with east-/west collectors and heat exchange control (page 45)

Solar system with east-/west collectors and thermostatic backup heating (page 47)

Solar system with east-/west collectors, thermostatic backup heating and return preheating (page 49)

7 |

SOM 9s

21 22 23 24

Solar system with east-/west collectors and heating circuit return preheating (page 51)

Solar system with vertical tank loading and east-/west collectors (page 53)

25 26

Solar system with east-/ west collectors, vertical tank loading and and thermostatic backup heating (page 62)

Solar system with east-/west collectors, vertical tank loading and backup heating with solid fuel boiler (page 65)

Solar system with east-/west collectors and 2 tanks (valve logic) (page 56)

Solar system with east-/ west collectors, vertical tank loading and heat exchange (page 59)

| 8

SOM 9s

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

2.6 System layouts

System 1 Standard solar system with 1 tank

The controller calculates the temperature difference between collector sensor S1 and tank sensor S2. If the difference is larger than or identical to the adjusted switch-on

S1

temperature difference, the pump (R1) will be switched on and the tank will be loaded until the switch-off temperature difference or the maximum tank temperature is reached.

R1

S2

Relay Description R1 Solar pump R2 optional: R3 R4

Thermal disinfection Booster pump Parallel relay Heat dump

Change to Description Page

9 |

Sensor/Terminal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 Optional sensor for measurement S4

Designation Description

purposes or options

S5 VFS RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

ARR 1 System 78 LOAD > Loading

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

ODB > OFF Drainback option 84 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE > OFF Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

Change to Description Page

| 10

SOM 9s

R4

R1

S4

S3

S2

S1

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 2 Solar system with 2 tanks and heat exchange

The controller calculates the temperature difference between collector sensor S1 and tank sensor S2. If the difference is larger than or identical to the adjusted switch-on temperature difference, the pump (R1) will be switched on

and the tank will be loaded until the switch-off temperature difference or the maximum tank temperature is reached. Heat exchange between S3 and S4 is possible.

Sensor/Terminal

S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 TST1T Temperature tank 1 top S4 TST2B Temperature tank 2 top S5 Optional sensor for measurement VFS RPS

Designation Description

purposes or options

Relay Description R1 Solar pump R2 Heat exchange pump R3 optional: R4

Thermal disinfection Booster pump Parallel relay Heat dump

V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

Change to Description Page

setting

ARR 1 2 System 78 LOAD > Loading

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 79 SMAXS 2 Sensor tank max 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

11 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

ODB > OFF Drainback option 84 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Heat exchange

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 40 °F Switch-on temperature (minimum limitation) 86 MIN3F 50 °F Switch-off temperature (minimum limitation) 86 S2DT3 4 Reference sensor heat sink 86

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> OFF Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

Change to Description Page

| 12

SOM 9s

System 3 Solar system with 1 tank and backup heating

The controller calculates the temperature difference between collector sensor S1 and tank sensor S2. If the difference is larger than or identical to the adjusted switch-on temperature difference, the pump (R1) will be switched on and the tank will be loaded until the switch-off temperature difference or the maximum tank temperature is reached.

Domestic hot water backup heating (R4) can be carried out with a thermostat function (S3). If the value at S3 reaches the switch-on temperature for the backup heating, the relay is energized. If the value exceeds the switch-off temperature for the backup heating, the relay is switched off again.

R1

VFS

RPS

Te mp. Sensor

Pt1000

S1

S2

S3

S1

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

S3

R4

L'

R1

R3

R2

N

S2

Sensor/Terminal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top S4 Optional sensor for measurement S5 VFS RPS V40

Adjustment channels

Channel Sub channel 1 Sub channel 2

ARR 1 3 System 78 LOAD > Loading

COL > Collector

Designation Description

Relay Description R1 Solar pump R2 optional: R3

Thermal disinfection Booster pump Parallel relay

purposes or options

Heat dump

R4 Backup heating/tank loading pump

Factory setting

Change to Description Page

DT O 12 °R Switch-on temperature difference DT F 8 °R Switch-off temperature difference DT S 20 °R Set temperature difference RIS 4 °R Rise S MAX SMAXS 2

140 °F

Tank maximum limitation Sensor tank max 79

CEM 270 °F Collector emergency temperature OCCO**

OFF

Option collector cooling

78 78 78 78 79

80

13 |

SOM 9s

Adjustment channels

Channel Sub channel 1 Sub channel 2

CMAX 230 °F Maximum collector temperature 80

OCMI

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

ODB > OFF Drainback option 84 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

AH > Backup heating option

AH O 110 °F Backup heating switch-on temperature 87 AH F 120 °F Backup heating switch-off temperature 87 t1O 06:00 Switch-on time 1 88 t1F 22:00 Switch-off time 1 88 t2O 00:00 Switch-on time 2 88 t2F 00:00 Switch-off time 2 88 t3O 00:00 Switch-on time 3 88 t3F 00:00 Switch-off time 3 88

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Factory setting

OFF Option collector minimum limitation 80

OFF Blocking protection 88

Change to Description Page

| 14

SOM 9s

R3

R1

S3

S2

S1

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 4 Solar system with 1 tank and 3-port valve for vertical tank loading

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S3. If the measured temperature differences are higher than the adjusted switchon temperature differences, the pump (R1) will be activated

and the corresponding tank zone will be loaded up to the adjusted maximum temperature via the valve (R3). The priority logic effects prior loading of the upper zone of the tank.

Note: 3-port valve normally open - tank bottom

Relay Description R1 Solar pump R2/R4 optional:

Thermal disinfection Parallel relay Heat dump

R3 3-port valve tank top/bottom

Change to Description Page

Sensor/Terminal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top S4 Optional sensor for measurement S5

Designation Description

purposes or options VFS RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

ARR 1 4 System 78 LOAD1 > Loading 1

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

LOAD2 > Loading 2

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78 RIS2 4 °R Rise 2 78

S2MAX 140 °F Tank maximum limitation 2 78

15 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83

TST2 120 °F Set tank temperature tank 2 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> OFF Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

Change to Description Page

| 16

SOM 9s

R3

R1

S4

S2

S1

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 5

2-tanksystemwithvalvelogic,1pump,3sensorsand3-portvalve

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S4. If the measured temperature differences are higher than the adjusted switch-on temperature differences, the pump (R1) will be activated and

the corresponding tank will be loaded up to the adjusted maximum temperature via the valve (R3). Tank 1 is loaded with priority.

Note: 3-port valve normally open - tank 1 (S2)

Sensor/Terminal

S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 Optional sensor for measurement

S4 TST2B Temperature tank 2 bottom S5 Optional sensor for measurement VFS RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR LOAD1 >

LOAD2 >

Designation Description

Relay Description

R1 Solar pump R2/R4 optional:

Thermal disinfection Parallel relay

purposes or options

Heat dump

R3 3-port valve tank 1 / 2

purposes or options

Change to Description Page

setting

1 5 System 78

Loading 1 DT1O 12 °R Switch-on temperature difference 1 DT1F 8 °R Switch-off temperature difference 1 DT1S 20 °R Set temperature difference 1 RIS1 4 °R Rise 1 S1MAX SMXS1 2

140 °F

Tank maximum limitation 1

Sensor tank max 1 79

Loading 2 DT2O 12 °R Switch-on temperature difference 2 DT2F

8 °R

Switch-off temperature difference 2

78 78 78 78 78

78 78

17 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting DT2S RIS2 S2MAX SMXS2 4 Sensor tank max 2 79 LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82 FRPST 1 Antifreeze tank selection 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 1 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83

TST2 120 °F Set tank temperature tank 2 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

20 °R 4 °R 140 °F

OFF Blocking protection 88

Change to Description Page

Set temperature difference 2 Rise 2 Tank maximum limitation 2

78 78 78

| 18

SOM 9s

R2R1

S4

S2

S1

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 6 2-tank solar system with pump logic

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S4. If the measured temperature differences are higher than the adjusted switchon temperature differences, the pump (R1 and R2) will be

activated and the corresponding tank will be loaded up to the adjusted maximum temperature at most.

Sensor/Terminal

S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 Optional sensor for measurement

S4 TST2B Temperature tank 2 bottom S5 Optional sensor for measurement VFS

Designation Description

purposes or options

Relay Description R1 Solar pump tank 1 R2 Solar pump tank 2

R3 optional: R4

Thermal disinfection Parallel relay Heat dump

RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

ARR 1 6 System

Change to Description Page

78

LOAD1 > Loading 1

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

LOAD2 > Loading 2

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78

RIS2 4 °R Rise 2 78

19 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

S2MAX 140 °F Tank maximum limitation 2 78 SMXS2 4 Sensor tank max 2 79 LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82 FRPST 1 Antifreeze tank selection 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 1 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83 TST2 120 °F Set tank temperature tank 2 83 OSE OFF Spread function option 83

DTSE 40 Spread difference 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

Change to Description Page

| 20

SOM 9s

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 7 Solar system with east-/west collectors

The controller compares the temperatures at the collector sensors S1 and S5 to the tank temperature at sensor S2. If one of the measured temperature differences is higher

than the adjusted switch-on temperature differences, the corresponding pump (R1, R2) will be activated and the tank will be loaded.

S1

S5

R2R1

Sensor/Terminal

S1 TCOL1 Temperature collector 1 S2 TSTB Temperature tank bottom S3 Optional sensor for measurement S4 S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS V40

Designation Description

purposes or options

S2

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

Change to Description Page

setting

ARR 1 7 System

78

LOAD > Loading

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT1S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

COL 1 > Collector 1

CEM1 270 °F Collector emergency temperature 1 80 OCCO1** OFF Option collector cooling 1 80

CMAX1 230 °F Maximum collector temperature 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

21 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

TCST1 07:00 Evacuated tube collector starting time 1 81

TCEN1 19:00 Evacuated tube collector ending time 1 81

TCRU1 30 s Evacuated tube collector runtime 1 81

TCIN1 30 min Evacuated tube collector standstill interval 1 81 OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82

CFR F 42 °F Antifreeze temperature collector off 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80 OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80 OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80 OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81

TCEN2 19:00 Evacuated tube collector ending time 2 81

TCRU2 30 s Evacuated tube collector runtime 2 81

TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

Change to Description Page

| 22

SOM 9s

System 8 Solar system with 1 tank and backup heating with solid fuel boiler

The controller calculates the temperature difference between collector sensor S1 and tank sensor S2. If the difference is larger than or identical to the adjusted switch-on temperature difference, the pump (R1) will be switched on and the tank will be loaded until the switch-off temperature

difference or the maximum tank temperature is reached. With another temperature differential function (S4/S3), backup heating of the tank can be carried out with a solid fuel boiler (R3).

R1

VFS

RPS

Te mp. Sensor

Pt1000

S1

S2

S3

S1

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

R4

L'

R1

R3

R2

N

S4

S3

R3

S2

Sensor/Ter-

Designation Description

minal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top S4 TSFB Temperature solid fuel boiler S5 Optional sensor for measurement VFS

purposes or options RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

ARR 1 8 System LOAD > Loading

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

Relay Description R1 Solar pump R3 Loading pump solid fuel boiler R2 optional: R4

Thermal disinfection Booster pump Parallel relay Heat dump

Change to Description Page

78

23 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

ODB > OFF Drainback option 84 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Solid fuel boiler

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 140 °F Switch-on temperature (minimum limitation) 86 MIN3F 150 °F Switch-off temperature (minimum limitation) 86 S2DT3 3 Reference sensor heat sink 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

Change to Description Page

| 24

SOM 9s

System 9 Solar system with 1 tank and heating circuit return preheating

The controller calculates the temperature difference between collector sensor S1 and tank sensor S2. If the difference is larger than or identical to the adjusted switch-on temperature difference, the pump (R1) will be switched on and the tank will be loaded until the switch-off temperature

difference or the maximum tank temperature is reached. With another temperature differential function (S3/S4) heating circuit return preheating (heating circuit backup) is possible via a valve (R2).

R1

VFS

RPS

Te mp. Sensor

Pt1000

S1

S2

S3

S1

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

R4

L'

R3

R2

R1

N

S3

S4

S2

R2

Sensor/Terminal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTR Temp. tank return preheating S4 TRET Temperature - return S5 Optional sensor for measurement VFS

Designation Description

purposes or options

Relay Description

R1 Solar pump R2 Return preheating R3 optional: R4

Thermal disinfection Booster pump Parallel relay

Heat dump RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

Change to Description Page

setting

ARR 1 9 System

78

LOAD > Loading

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

25 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

ODB > OFF Drainback option 84 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Solid fuel boiler

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 S2DT3 3 Reference sensor heat source 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> OFF Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

Change to Description Page

| 26

SOM 9s

R4

R2

R1

S4

S3

S2

S1

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 10

Solarsystemwith1tank,heatingcircuitreturnpreheatingandthermostaticbackupheating

The controller calculates the temperature difference between collector sensor S1 and tank sensor S2. If the difference is larger than or identical to the adjusted switch-on temperature difference, the pump (R1) will be switched on and the tank will be loaded until the switch-off temperature

difference or the maximum tank temperature is reached. With another temperature differential function (S3/S4) heating circuit backup (heating circuit return preheating) is possible via a valve (R2). With a thermostat function (S3) domestic hot water backup heating (R4) can be carried out.

Sensor/Terminal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTT/TSTR Temperature tank top/

S4 TRET Temperature - return S5 Optional sensor for measurement VFS

Designation Description

Temp. tank return preheating

purposes or options

Relay Description R1 Solar pump R2 Return preheating R3 optional:

Thermal disinfection Booster pump Parallel relay Heat dump

R4 Backup heating/tank loading pump RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

Change to Description Page

ARR 1 10 System 78 LOAD > Loading

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78

DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

27 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

ODB > OFF Drainback option 84 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Return preheating

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 S2DT3 3 Reference sensor heat source 87

AH > Backup heating option

AH O 110 °F Backup heating switch-on temperature 87 AH F 120 °F Backup heating switch-off temperature 87 t1O 06:00 Switch-on time 1 88 t1F 22:00 Switch-off time 1 88 t2O 00:00 Switch-on time 2 88 t2F 00:00 Switch-off time 2 88 t3O 00:00 Switch-on time 3 88 t3F 00:00 Switch-off time 3 88

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

Change to Description Page

| 28

SOM 9s

System 11 Solar system with vertical tank loading and heat exchange control

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S3. If the measured temperature differences are higher than the adjusted switchon temperature differences, the pump (R1) will be activated and the corresponding tank zone will be loaded up to the adjusted maximum temperature via the valve (R3).

The priority logic effects prior loading of the upper zone of the tank.

Heat exchange control to an existent tank via an additional pump (R2) can be carried out with another temperature differential function (S3 heat source/S4 heat sink).

Te mp.Sensor

S1

Pt1000

S2

VFS

RPS

S1

R3

R1

Note: 3-port valve normally open - tank bottom

out in

L

S3

S4

S5

PWM 1

PWM 2

V40

GND

VBus

R4

L'

R1

R3

R2

N

S3

R2

S4

S2

Sensor/Terminal

S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 TSTT Temperature tank 1 top S4 TST2B Temperature tank 2 bottom S5 Optional sensor for measurement VFS

Designation Description

purposes or options

Relay Description R1 Solar pump R2 Heat exchange pump R3 3-port valve tank top/bottom R4 optional:

Thermal disinfection Parallel relay Heat dump

RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

Change to Description Page

setting ARR 1 11 System 78 LOAD1 > Loading 1

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

LOAD2 > Loading 2

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78 RIS2 4 °R Rise 2 78

S2MAX 140 °F Tank maximum limitation 2 78

29 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83

TST2 120 °F Set tank temperature tank 2 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Heat exchange

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 40 °F Switch-on temperature (minimum limitation) 86 MIN3F 50 °F Switch-off temperature (minimum limitation) 86 S2DT3 4 Reference sensor heat sink 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

| 30

Change to Description Page

SOM 9s

R3

R1

S3

S2

S1

Temp. Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 12 Solar system with vertical tank loading and thermostatic backup heating

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S3. If the measured temperature differences are higher than the adjusted switchon temperature differences, the pump (R1) will be activated and the corresponding tank zone will be loaded up to the

adjusted maximum temperature via the valve (R3). The priority logic effects prior loading of the upper zone of the tank.

Domestic hot water backup heating (R4) can be carried out with a thermostat function (S3).

Note: 3-port valve normally open - tank bottom

Sensor/Terminal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top S4 Optional sensor for measurement S5 VFS RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR 1 12 System 78 LOAD1 > Loading 1

LOAD2 > Loading 2

Designation Description

Relay Description

R1 Solar pump R2 optional:

Thermal disinfection

purposes or options

R3 3-port valve tank top/bottom

Parallel relay Heat dump

R4 Backup heating/tank loading pump

Change to Description Page

setting

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 60 Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78 RIS2 4 °R Rise 2 78

31 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting S2MAX 140 °F Tank maximum limitation 2 78 LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83

TST2 120 °F Set tank temperature tank 2 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

AH > Backup heating option

AH O 110 °F Backup heating switch-on temperature 87 AH F 120 °F Backup heating switch-off temperature 87 t1O 06:00 Switch-on time 1 88 t1F 22:00 Switch-off time 1 88 t2O 00:00 Switch-on time 2 88 t2F 00:00 Switch-off time 2 88 t3O 00:00 Switch-on time 3 88 t3F 00:00 Switch-off time 3 88

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

| 32

Change to Description Page

SOM 9s

R4

R3

R1

S4

S3

S2

S1

Temp. Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 13 Solar system with vertical tank loading and backup heating with solid fuel boiler

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S3. If the measured temperature differences are higher than the adjusted switch-on temperature differences, the pump (R1) will be activated and the corresponding tank zone will be loaded up to the adju-

sted maximum temperature via the valve (R4). The priority logic effects prior loading of the upper zone of the tank. With another temperature differential function (S4/S3), backup heating of the tank can be carried out with a solid fuel boiler (R3).

Note: 3-port valve normally open - tank bottom

Sensor/Terminal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top S4 TSFB Temperature solid fuel boiler S5 Optional sensor for measurement VFS RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR 1 13 System 78 LOAD1 > Loading 1

LOAD2 > Loading 2

Designation Description

Relay Description R1 Solar pump R2 optional:

Thermal disinfection Parallel relay Heat dump

R3 Loading pump/solid fuel boiler

purposes or options

R4 3-port valve tank top/bottom

Change to Description Page

setting

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78 RIS2 4 °R Rise 2 78 S2MAX 140 °F Tank maximum limitation 2 78

33 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83

TST2 120 °F Set tank temperature tank 2 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Solid fuel boiler

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 140 °F Switch-on temperature (minimum limitation) 86 MIN3F 149 °F Switch-off temperature (minimum limitation) 86 S2DT3 3 Reference sensor heat sink 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting * This channel is only available if the Grundfos sensors have been registered in the GFDS channel.

** are blocked against each other

| 34

Change to Description Page

SOM 9s

R3

R2

R1

S4

S3

S2

S1

Temp. Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 14 Solar system with vertical tank loading and return preheating

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S3. If the measured temperature differences are higher than the adjusted switchon temperature differences, the pump (R1) will be activated and the corresponding tank zone will be loaded up to the

adjusted maximum temperature via the valve (R3). The priority logic effects prior loading of the upper zone of the tank.

With another temperature differential function (S3-heat source/S4-heat sink) heating circuit return preheating (heating circuit backup) is possible via another valve (R2).

Note: 3-port valve normally open - tank bottom

Sensor/Terminal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTT/TSTR Temperature tank top/

S4 TRET Temperature return S5 Optional sensor for measurement VFS RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR 1 14 System 78 LOAD1 > Loading 1

LOAD2 > Loading 2

Designation Description

Relay Description R1 Solar pump R2 Return preheating R3 3-port valve tank top/bottom R4 optional:

Thermal disinfection Parallel relay Heat dump

Temp. tank return preheating

purposes or options

Change to Description Page

setting

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78 RIS2 4 °R Rise 2 78

35 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

S2MAX 140 °F Tank maximum limitation 2 78 LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated evacuated tube collector function 81

TCST 07:00 Evacuated evacuated tube collector starting time 81 TCEN 19:00 Evacuated evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83

TST2 120 °F Set tank temperature tank 2 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Return preheating

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 S2DT3 3 Reference sensor heat source 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR >

OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

setting

OFF Blocking protection 88

| 36

Change to Description Page

SOM 9s

System 15 Solar system with vertical tank loading and backup heating via heating backup

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S3. If the measured temperature differences are higher than the adjusted switchon temperature differences, the pump (R1) will be activated and the corresponding tank zone will be loaded up to the adjusted maximum temperature at most via the valve (R3). The priority logic effects prior loading of the upper zone

of the tank. With another temperature differential function (S3-heat

source/S4-heat sink) heating circuit return preheating (heating circuit backup) is possible via another valve (R2). Domestic hot water backup heating (R4) can be carried out with a thermostat function (S3).

R1

VFS

RPS

Te mp. Sensor

Pt1000

S1

S2

S3

S1

R3

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

S3

R4

L'

R3

R2

R1

N

S4

S2

R2

Note: 3-port valve normally open - tank bottom

Sensor/Ter-

Designation Description

minal

S1 TCOL Temperature collector S2 TSTB Temperature tank bottom S3 TSTT/TSTR Temperature tank top/

Temp. tank return preheating S4 TRET Temperature return S5 Optional sensor for measurement VFS

purposes or options RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

ARR 1 15 System 78 LOAD1 > Loading 1

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

Relay Description R1 Solar pump R2 Return preheating R3 3-port valve tank top/bottom R4 Backup heating/tank loading pump

Change to Description Page

37 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

LOAD2 > Loading 2

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78 RIS2 4 °R Rise 2 78 S2MAX 140 °F Tank maximum limitation 2 78 LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated evacuated tube collector

TCST 07:00 Evacuated evacuated tube collector starting time 81 TCEN 19:00 Evacuated evacuated tube collector ending time 81 TCRU 30 s Evacuated evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83

TST2 120 °F Set tank temperature tank 2 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Return preheating

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 S2DT3 3 Reference sensor heat source 87

AH > Backup heating option

AH O 110 °F Backup heating switch-on temperature 87 AH F 120 °F Backup heating switch-off temperature 87 t1O 06:00 Switch-on time 1 88 t1F 22:00 Switch-off time 1 88 t2O 00:00 Switch-on time 2 88 t2F 00:00 Switch-off time 2 88 t3O 00:00 Switch-on time 3 88 t3F 00:00 Switch-off time 3 88

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR> OFF Parallel relay option 90

| 38

Change to Description Page

function

81

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

39 |

SOM 9s

R2

R3

R1

S4

S3

S2

S1

Temp. Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 16 2-tank solar system with valve logic and heat exchange control

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S4. If the measured temperature differences are higher than the adjusted switchon temperature differences, the pump (R1) will be activated and the corresponding tank zone will be loaded up to the

adjusted maximum temperature via the valve (R3). Tank 1 is loaded with priority. Heat exchange from tank 1 to tank 2 (R2) is possible with another temperature differential function (S3-heat source/S4-heat sink).

Note: 3-port valve normally open

- tank 1 (S2)

Sensor/Terminal

S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 TSTT Temperature tank 1 top S4 TST2B Temperature tank 2 bottom S5 Optional sensor for measurement VFS RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR 1 16 System 78 LOAD1 > Loading 1

LOAD2 > Loading 2

| 40

Designation Description

Relay Description R1 Solar pump R2 Heat exchange pump R3 3-port valve tank 1 / 2 R4 optional:

Thermal disinfection

purposes or options

Parallel relay Heat dump

Change to Description Page

setting

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78 RIS2 4 °R rise 2 78 S2MAX 140 °F Tank maximum limitation 2 78 SMXS2 4 Sensor tank max 2 79 LST2 ON Loading tank 2 79

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82 FRPST 1 Antifreeze tank selection 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 1 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83

TST2 120 °F Set tank temperature tank 2 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Heat exchange

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 40 °F Switch-on temperature (minimum limitation) 86 MIN3F 50 °F Switch-off temperature (minimum limitation) 86 S2DT3 4 Reference sensor heat sink 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel.

** are blocked against each other

setting

Change to Description Page

41 |

SOM 9s

System 17 2-tank solar system with pump logic and heat exchange control

The controller compares the temperature at sensor S1 to the temperatures at sensors S2 and S4. If the measured temperature differences are higher than the adjusted switchon temperature differences, the pump (R1 and R2) will be activated and the corresponding tank will be loaded up to

the adjusted maximum temperature. Tank 1 is loaded with priority.

Heat exchange from tank 1 to tank 2 (R3) is possible with another temperature differential function (S3-heat source/ S4-heat sink).

VFS

RPS

Te mp. Sensor

S1

R2R1

Pt1000

S2

S3

S4

S5

GND

out in

PWM 1

PWM 2

L

VBus

V40

S3

R3

R4

L'

R3

R2

R1

N

S4

S2

Sensor/Terminal

S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 TSTT Temperature tank 1 top S4 TST2B Temperature tank 2 bottom S5 Optional sensor for measurement VFS

Designation Description

purposes or options

Relay Description R1 Solar pump tank 1 R2 Solar pump tank 2 R3 Heat exchange pump R4 optional:

Thermal disinfection Parallel relay

Heat dump RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

Change to Description Page

setting

ARR 1 17 System 78 LOAD1 > Loading 1

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

LOAD2 > Loading 2

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78

| 42

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

RIS2 4 °R Rise 2 78 S2MAX 140 °F Tank maximum limitation 2 78 SMXS2 4 Sensor tank max 2 79 LST2 ON Loading tank 2 79

COL > Collector

CEM 270 °F Collector emergency temperature 80 OCCO** OFF Option collector cooling 80

CMAX 230 °F Maximum collector temperature 80

OCMI OFF Option collector minimum limitation 80

CMIN 50 °F Minimum collector temperature 80

OTCO OFF Option evacuated tube collector function 81

TCST 07:00 Evacuated tube collector starting time 81 TCEN 19:00 Evacuated tube collector ending time 81 TCRU 30 s Evacuated tube collector runtime 81 TCIN 30 min Evacuated tube collector standstill interval 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82 FRPST 1 Antifreeze tank selection 82

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 1 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83 TST2 120 °F Set tank temperature tank 2 83 OSE OFF Spread function option 83

DTSE 40 Spread difference 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Heat exchange

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 40 °F Switch-on temperature (minimum limitation) 86 MIN3F 50 °F Switch-off temperature (minimum limitation) 86 S2DT3 4 Reference sensor heat sink 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92

Change to Description Page

43 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

| 44

SOM 9s

R3

R2R1

S5

S4

S3

S2

S1

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 18 Solar system with east-/west collectors and heat exchange control

The controller compares the temperatures at the collector sensors S1 and S5 to the tank temperature at sensor S2. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the corresponding pump (R1, R2) or

both pumps will be activated and the tank will be loaded. Heat transfer control to an existent tank (R3) can be carried out with another temperature differential function (S3-heat source/S4-heat sink).

Sensor/Terminal

S1 TCOL1 Temperature collector 1 S2 TST1B Temperature tank 1 bottom S3 TSTT Temperature tank 1 top S4 TST2B Temperature tank 2 bottom S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS

Designation Description

purposes or options

Relay Description

R1 Solar pump collector 1 R2 Solar pump collector 2 R3 Heat exchange pump R4 optional:

Thermal disinfection Parallel relay Heat dump

V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

Change to Description Page

setting

ARR 1 18 System 78 LOAD > Loading

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

COL 1 > Collector 1

CEM1 270 °F Collector emergency temperature 1 80 OCCO1** OFF Option collector cooling 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMAX1 230 °F Maximum collector temperature 1 80

45 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 81

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80 OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Heat exchange

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 40 °F Switch-on temperature (minimum limitation) 86 MIN3F 50 °F Switch-off temperature (minimum limitation) 86 S2DT3 4 Reference sensor heat sink 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88

MAN4 Auto Manual mode 4 88 BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

| 46

SOM 9s

System 19 Solar system with east-/west collectors and thermostatic backup heating

The controller compares the temperatures at the collector sensors S1 and S5 to the tank temperature at sensor S2. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the corre-

sponding pump (R1, R2) or both pumps will be activated and the tank will be loaded. Domestic hot water backup heating (R4) can be carried out with a thermostat function (S3).

VFS

RPS

Te mp. Sensor

S1

R2R1

Pt1000

S2

S3

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

S3

R4

L'

R1

R3

R2

N

S2

Sensor/Terminal

S1 TCOL1 Temperature collector 1 S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top

S4 Optional sensor for measurement

S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR 1 19 System 78 LOAD > Loading

COL 1 > Collector 1

Designation Description

Relay Description R1 Solar pump collector 1 R2 Solar pump collector 2 R3 optional:

Thermal disinfection Parallel relay

purposes or options

Heat dump

R4 Backup heating/tank loading pump

purposes or options

Change to Description Page

setting

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

CEM1 270 °F Collector emergency temperature 1 80 OCCO1** OFF Option collector cooling 1 80

CMAX1 230 °F Maximum collector temperature 1 80

OCMI1 OFF Option collector minimum limitation 1 80

47 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 81

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80

OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

OOVRU* OFF Overrun option 84 COOL > Cooling functions

OSYC** OFF System cooling 85

OSTC OFF Tank cooling 85

OHDP** OFF Heat dump 85 AH > Backup heating option

AH O 110 °F Backup heating switch-on temperature 87

AH F 120 °F Backup heating switch-off temperature 87

t1O 06:00 Switch-on time 1 88

t1F 22:00 Switch-off time 1 88

t2O 00:00 Switch-on time 2 88

t2F 00:00 Switch-off time 2 88

t3O 00:00 Switch-on time 3 88

t3F 00:00 Switch-off time 3 88 PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79

PUMP2 OnOF Speed variant pump 2 79

PUMP3 OnOF Speed variant pump 3 79 MAN > Manual mode

MAN1 Auto Manual mode 1 88

MAN2 Auto Manual mode 2 88

MAN3 Auto Manual mode 3 88

MAN4 Auto Manual mode 4 88 BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

| 48

SOM 9s

R3

R4

R2R1

S5

S4

S3

S2

S1

Temp. Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 20

Solarsystemwitheast-/westcollectors,thermostaticbackupheatingandreturnpreheating

The controller compares the temperatures at the collector sensors S1 and S5 to the tank temperature at sensor S2. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the corresponding pump (R1, R2) or both pumps will be activated and the tank will be loaded.

With another temperature differential function (S3-heat source/S4-heat sink) heating circuit return preheating (heating circuit backup) is possible with another valve (R3). Domestic hot water backup heating (R4) can be carried out with a thermostat function (S3).

Note: 3-port valve normally open - tank bottom

Sensor/Terminal

S1 TCOL1 Temperature collector 1 S2 TSTB Temperature tank bottom S3 TSTT/TSTR Temperature tank top/

S4 TRET Temperature - return S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR 1 20 System 78 LOAD > Loading

COL 1 > Collector 1

Designation Description

Relay Description R1 Solar pump collector 1 R2 Solar pump collector 2 R3 Return preheating R4 Backup heating/tank loading pump

Temp. tank return preheating

purposes or options

Change to Description Page

setting

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

CEM1 270 °F Collector emergency temperature 1 80 OCCO1** OFF Option collector cooling 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMAX1 230 °F Maximum collector temperature 1 80

49 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 81

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82 FRPST 1 Antifreeze tank selection 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80

OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

OOVRU* OFF Overrun option 84 COOL > Cooling functions

OSYC** OFF System cooling 85

OSTC OFF Tank cooling 85

OHDP** OFF Heat dump 85 DT3 > Return preheating

DT3O 12 °R Switch-on difference 86

DT3F 8 °R Switch-off difference 86

S2DT3 3 Reference sensor heat source 87 AH > Backup heating option

AH O 110 °F Backup heating switch-on temperature 87

AH F 120 °F Backup heating switch-off temperature 87

t1O 06:00 Switch-on time 1 88

t1F 22:00 Switch-off time 1 88

t2O 00:00 Switch-on time 2 88

t2F 00:00 Switch-off time 2 88

t3O 00:00 Switch-on time 3 88

t3F 00:00 Switch-off time 3 88 PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79

PUMP2 OnOF Speed variant pump 2 79

PUMP3 OnOF Speed variant pump 3 79 MAN > Manual mode

MAN1 Auto Manual mode 1 88

MAN2 Auto Manual mode 2 88

MAN3 Auto Manual mode 3 88

MAN4 Auto Manual mode 4 88 BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

| 50

Change to Description Page

SOM 9s

System 21 Solar system with east-/west collectors and heating circuit return preheating

The controller compares the temperatures at the collector sensors S1 and S5 to the tank temperature at sensor S2. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the corresponding pump (R1, R2) or both pumps will be activated and

the tank will be loaded. With another temperature differential function (S3-heat

source/S4-heat sink) heating circuit return preheating (heating circuit backup) is possible with another valve (R3).

VFS

RPS

Te mp. Sensor

S1

R2R1

Pt1000

S2

S3

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

R4

L'

R3

R2

R1

N

S3

S4

S2

R3

Sensor/Ter-

Designation Description

minal

S1 TCOL1 Temperature collector 1 S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top S4 TRET Temperature - return S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS

purposes or options

V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

Change to Description Page

setting

ARR 1 21 System 78 LOAD > Loading

DT O 12 °R Switch-on temperature difference 78 DT F 8 °R Switch-off temperature difference 78 DT S 20 °R Set temperature difference 78 RIS 4 °R Rise 78 S MAX 140 °F Tank maximum limitation 78 SMAXS 2 Sensor tank max 79

COL 1 > Collector 1

CEM1 270 °F Collector emergency temperature 1 80 OCCO1** OFF Option collector cooling 1 80

CMAX1 230 °F Maximum collector temperature 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMIN1 50 °F Minimum collector temperature 1 80

51 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 81

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80

OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

OOVRU* OFF Overrun option 84 COOL > Cooling functions

OSYC** OFF System cooling 85

OSTC OFF Tank cooling 85

OHDP** OFF Heat dump 85 DT3 > Return preheating

DT3O 12 °R Switch-on difference 86

DT3F 8 °R Switch-off difference 86

S2DT3 3 Reference sensor heat source 87 PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79

PUMP2 OnOF Speed variant pump 2 79

PUMP3 OnOF Speed variant pump 3 79 MAN > Manual mode

MAN1 Auto Manual mode 1 88

MAN2 Auto Manual mode 2 88

MAN3 Auto Manual mode 3 88

MAN4 Auto Manual mode 4 88 BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

| 52

SOM 9s

R3

R2R1

S5

S3

S2

S1

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 22 Solar system with vertical tank loading and east-/west collectors

The controller compares the temperatures at the collector sensors S1 and S5 to the tank temperatures at the sensors S2 and S3. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the corresponding pump (R1, R2) or both pumps will be

activated and the corresponding tank zone will be loaded up to the adjusted maximum temperature via the valve (R3). The priority logic effects prior loading of the upper zone of the tank.

Note: 3-port valve normally open - tank bottom

Relay Description R1 Solar pump collector 1 R2 Solar pump collector 2 R3 3-port valve tank top/bottom R4 optional:

Thermal disinfection Parallel relay Heat dump

Change to Description Page

Sensor/Terminal

S1 TCOL1 Temperature collector 1 S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top

Designation Description

S4 Optional sensor for measurement

purposes or options S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS

purposes or options V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

ARR 1 22 System 78 LOAD1 > Loading 1

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

LOAD2 > Loading 2

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78

53 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

DT2S 20 °R Set temperature difference 2 78 RIS2 4 °R Rise 2 78 S2MAX 140 °F Tank maximum limitation 2 78 LST2 ON Loading tank 2 79

COL 1 > Collector 1

CEM1 270 °F Collector emergency temperature 1 80 OCCO1** OFF Option collector cooling 1 80

CMAX1 230 °F Maximum collector temperature 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80 OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83 TST2 120 °F Set tank temperature tank 2 83

DTSE 70 °R Spread difference 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79

PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88

MAN4 Auto Manual mode 4 88 BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93

| 54

Change to Description Page

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

55 |

SOM 9s

R3

R2R1

S5

S4

S2

S1

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

System 23 Solar system with east-/west collectors and 2 tanks (valve logic)

The controller compares the temperatures at the collector sensors S1 and S5 to the temperatures at S2 and S4. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the correspon-

ding pump (R1, R2) or both pumps will be activated and the corresponding tank will be loaded up to the adjusted maximum temperature via the valve (R3).

Note: 3-port valve normally open

- tank 1 (S2)

Sensor/Terminal

S1 TCOL1 Temperature collector 1 S2 TST1B Temperature tank 1 bottom S3 Optional sensor for measurement

Designation Description

purposes or options S4 TST2B Temperature tank 2 bottom S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS

purposes or options V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

ARR 1 23 System 78 LOAD1 > Loading 1

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

LOAD2 > Loading 2

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78

Relay Description

R1 Solar pump collector 1 R2 Solar pump collector 2 R3 3-port valve tank 1 / 2 R4 optional:

Thermal disinfection Parallel relay Heat dump

Change to Description Page

| 56

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

RIS2 4 °R Rise 2 78 S2MAX 140 °F Tank maximum limitation 2 78 SMXS2 4 Sensor tank max 2 79 LST2 ON Loading tank 2 79

COL 1 > Collector 1

CEM1 270 °F Collector emergency temperature 1 80 OCCO1** OFF Option collector cooling 1 80

CMAX1 230 °F Maximum collector temperature 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82 FRPST 1 Antifreeze tank selection 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80 OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 1 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83 TST2 120 °F Set tank temperature tank 2 83

DTSE 110 °F Spread difference 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88 MAN4 Auto Manual mode 4 88

BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92

Change to Description Page

57 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

| 58

SOM 9s

System 24

Solarsystemwitheast-/westcollectors,verticaltankloadingandheatexchange

The controller compares the temperatures at the collector sensors S1 and S5 to the temperatures at S2 and S3. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the corresponding pump (R1, R2) or both pumps will be activated and the

corresponding tank zone will be loaded up to the adjusted maximum temperature via the valve (R3). The upper tank zone is be loaded with priority. Heat exchange from tank 1 to tank 2 (R4) is possible with another temperature differential function (S3-heat source/S4-heat sink).

VFS

RPS

Te mp. Sensor

S1

R3

R2R1

Pt1000

S2

S3

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

S3

R4

L'

R1

R3

R2

N

S4

S2

Note: 3-port valve normally open - tank bottom

Sensor/Terminal

S1 TCOL1 Temperature collector 1 S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top S4 TST2B Temperature tank 2 bottom S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR 1 24 System 78 LOAD1 > Loading 1

LOAD2 > Loading 2

Designation Description

Relay Description R1 Solar pump collector 1 R2 Solar pump collector 2 R3 3-port valve tank 1 / 2 R4 Heat exchange pump

purposes or options

Change to Description Page

setting

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

DT2O 12 °R Switch-on temperature difference 2 78 DT2F 8 °R Switch-off temperature difference 2 78 DT2S 20 °R Set temperature difference 2 78

59 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

RIS2 4 °R Rise 2 78 S2MAX 140 °F Tank maximum limitation 2 78 LST2 ON Loading tank 2 79

COL 1 > Collector 1

CEM1 270 °F Collector emergency temperature 1 80 OCCO1** OFF Option collector cooling 1 80

CMAX1 230 °F Maximum collector temperature 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80 OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83 TST2 120 °F Set tank temperature tank 2 83

DTSE 70 °R Spread difference 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Heat exchange

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 40 °F Switch-on temperature (minimum limitation) 86 MIN3F 50 °F Switch-off temperature (minimum limitation) 86 S2DT3 4 Reference sensor heat sink 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88

| 60

Change to Description Page

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

MAN4 Auto Manual mode 4 88 BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

61 |

SOM 9s

System 25

Solarsystemwitheast-/westcollectors,verticaltankloadingandthermostaticbackupheating

The controller compares the temperatures at the collector sensors S1 and S5 to the tank temperatures at the sensors S2 and S3. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the corresponding pump (R1, R2) or both pumps will be activated and the corresponding tank zone will be loaded

up to the adjusted maximum temperature via the valve (R3). The priority logic effects prior loading of the upper zone of the tank.

Domestic hot water backup heating (R4) can be carried out with a thermostat function (S3).

VFS

RPS

Te mp. Sensor

S1

R3

R2R1

Pt1000

S2

S3

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

S3

R4

L'

R1

R3

R2

N

S2

Note: 3-port valve normally open - tank bottom

Sensor/Terminal

S1 TCOL1 Temperature collector 1 S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top S4 Optional sensor for measurement

S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

ARR 1 25 System 78 LOAD1 > Loading 1

LOAD2 > Loading 2

| 62

Designation Description

Relay Description

R1 Solar pump collector 1 R2 Solar pump collector 2 R3 3-port valve tank top/bottom R4 Backup heating/tank loading pump

purposes or options

Change to Description Page

setting

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

DT2O 12 °R Switch-on temperature difference 2 78

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

DT2F 8 °R Switch-off temperature difference 2 78

DT2S 20 °R Set temperature difference 2 78

RIS2 4 °R Rise 2 78

S2MAX 140 °F Tank maximum limitation 2 78

LST2 ON Loading tank 2 79 COL 1 > Collector 1

CEM1 270 °F Collector emergency temperature 1 80

OCCO1** OFF Option collector cooling 1 80

CMAX1 230 °F Maximum collector temperature 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 82

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80

OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83 TST2 120 °F Set tank temperature tank 2 83

DTSE 70 °R Spread difference 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

AH > Backup heating option

AH O 110 °F Backup heating switch-on temperature 87 AH F 120 °F Backup heating switch-off temperature 87 t1O 06:00 Switch-on time 1 88 t1F 22:00 Switch-off time 1 88 t2O 00:00 Switch-on time 2 88 t2F 00:00 Switch-off time 2 88 t3O 00:00 Switch-on time 3 88 t3F 00:00 Switch-off time 3 88

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88

Change to Description Page

63 |

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

MAN3 Auto Manual mode 3 88

MAN4 Auto Manual mode 4 88 BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

| 64

SOM 9s

System 26

Solarsystemwitheast-/westcollectors,verticaltankloadingandbackupheatingwithsolidfuelboiler

The controller compares the temperatures at the collector sensors S1 and S5 to the tank temperatures at the sensors S2 and S3. If one of the measured temperature differences is higher than the adjusted switch-on temperature differences, the corresponding pump (R1, R2) or both pumps will be activated and the corresponding tank zone will be loaded

up to the adjusted maximum temperature via the valve (R4). The priority logic effects prior loading of the upper zone of the tank.

With another temperature differential function (S4/S3), backup heating of the tank can be carried out with a solid fuel boiler (R3).

VFS

RPS

Te mp. Sensor

S1

R4

R2R1

Pt1000

S2

S3

S4

S5

GND

out in

PWM 1

PWM 2

L

V40

VBus

R4

L'

R1

R3

R2

N

S4

S3

R3

S2

Note: 3-port valve normally open - tank bottom

Sensor/Ter-

Designation Description

minal S1 TCOL1 Temperature collector 1 S2 TSTB Temperature tank bottom S3 TSTT Temperature tank top

S4 TSFB Temperature solid fuel boiler S5 TCOL2 Temperature collector 2 VFS Optional sensor for measurement RPS

purposes or options

V40

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

ARR 1 26 System 78 LOAD1 > Loading 1

DT1O 12 °R Switch-on temperature difference 1 78 DT1F 8 °R Switch-off temperature difference 1 78 DT1S 20 °R Set temperature difference 1 78 RIS1 4 °R Rise 1 78 S1MAX 140 °F Tank maximum limitation 1 78 SMXS1 2 Sensor tank max 1 79

LOAD2 > Loading 2

DT2O 12 °R Switch-on temperature difference 2 78

DT2F 8 °R Switch-off temperature difference 2 78

Relay Description R1 Solar pump collector 1 R2 Solar pump collector 2 R3 Loading pump solid fuel boiler R4 3-port valve tank top/bottom

Change to Description Page

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SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

DT2S 20 °R Set temperature difference 2 78

RIS2 4 °R Rise 2 78

S2MAX 140 °F Tank maximum limitation 2 78

LST2 ON Loading tank 2 79 COL 1 > Collector 1

CEM1 270 °F Collector emergency temperature 1 80

OCCO1** OFF Option collector cooling 1 80

CMAX1 230 °F Maximum collector temperature 1 80

OCMI1 OFF Option collector minimum limitation 1 80

CMIN1 50 °F Minimum collector temperature 1 80

OTCO1 OFF Option evacuated tube collector function 1 81

TCST1 07:00 Evacuated tube collector starting time 1 81 TCEN1 19:00 Evacuated tube collector ending time 1 81 TCRU1 30 s Evacuated tube collector runtime 1 81 TCIN1 30 min Evacuated tube collector standstill interval 1 81

OCFR OFF Option collector frost protection 81

CFR O 40 °F Antifreeze temperature collector on 82 CFR F 42 °F Antifreeze temperature collector off 82

COL 2 > Collector 2

CEM2 270 °F Collector emergency temperature 2 80

OCCO2** OFF Option collector cooling 2 80

CMAX2 230 °F Maximum collector temperature 2 80

OCMI2 OFF Option collector minimum limitation 2 80

CMIN2 50 °F Minimum collector temperature 2 80

OTCO2 OFF Option evacuated tube collector function 2 81

TCST2 07:00 Evacuated tube collector starting time 2 81 TCEN2 19:00 Evacuated tube collector ending time 2 81 TCRU2 30 s Evacuated tube collector runtime 2 81 TCIN2 30 min Evacuated tube collector standstill interval 2 81

LLOGI > Loading logic

PRIO Priority logic 82

PRIO 2 Priority logic 82 OSTS OFF Tank set option 83 TST1 120 °F Set tank temperature tank 1 83 TST2 120 °F Set tank temperature tank 2 83

DTSE 70 °R Spread difference 83 tLB 2 min Loading break time 82 tRUN 15 min Circulation runtime 82 PSPEE OFF Pause speed option 83 PDELA OFF Pump delay option 83 OOVRU* OFF Overrun option 84

COOL > Cooling functions

OSYC** OFF System cooling 85 OSTC OFF Tank cooling 85 OHDP** OFF Heat dump 85

DT3 > Solid fuel boiler

DT3O 12 °R Switch-on difference 86 DT3F 8 °R Switch-off difference 86 DT3S 20 °R Set difference 86 RIS3 4 °R Rise 86 MAX3O 140 °F Switch-on temperature (maximum limitation) 86 MAX3F 136 °F Switch-off temperature (maximum limitation) 86 MIN3O 140 °F Switch-on temperature (minimum limitation) 86 MIN3F 149 °F Switch-off temperature (minimum limitation) 86 S2DT3 3 Reference sensor heat sink 87

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 79 PUMP2 OnOF Speed variant pump 2 79 PUMP3 OnOF Speed variant pump 3 79

MAN > Manual mode

MAN1 Auto Manual mode 1 88 MAN2 Auto Manual mode 2 88 MAN3 Auto Manual mode 3 88

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Change to Description Page

SOM 9s

Adjustment channels Channel Sub channel 1 Sub channel 2 Factory

setting

MAN4 Auto Manual mode 4 88 BLPR > OFF Blocking protection 88 OTDIS > OFF Thermal disinfection option 89 OPARR > OFF Parallel relay option 90 OHQM > OFF Energy metering option 90 GFDS > OFF Registration Grundfos sensors 90 PRS* > OFF Pressure monitoring option 92 DATE> Enter date 92 LANG > En Language 93 UNIT > °F Unit 92 OSDC > SD card option 93 CODE 0000 User code 96 RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

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SOM 9s

Temp.Sensor

Pt1000

L

R3

R2

R1

GND

S1

S2

S3

S4

S5

VBus

PWM 1

PWM 2

N

R4

V40

L'

VFS

RPS

out in

Electricalconnectionofahigh-efciencypump(HEpump)

Speed control of a HE pump is possible via a PWM signal. For this purpose, the pump has to be connected to the relay as well as to one of the PWM outputs of the controller (see

S1

page 4). In the PUMP adjustment channel one of the PWM control types has to be selected.

R1

Note:

For more information about pump control, see page 79.

S2

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SOM 9s

3 Operation and function

3.1 Buttons

7

6

3.2 Selecting menu points and adjusting values

1

4

2

5

3

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

1

Button

- scrolling upwards

3

- scrolling downwards

2

- increasing adjustment values

4

- reducing adjustment values

5

- conrming

6

- menu button for changing between the status and the menu level

Button

7

- escape button for changing into the previous menu

During normal operation of the controller, the display is in the status level.

In order to leave the status level and access the menu level, press button 6.

The display indicates the level with the selectable menus. In order to change the parameters of a menu item, select the menu item and press button 5. The display changes to the adjustment level. The adjustment channels are characterized by the indication

Î Select the desired channel by pressing the buttons

3

and

.

1

Î Confirm the selection with button 5, flashes

(adjustment mode)

Î Adjust the value, the function or the option using the

buttons

2

and

4

Î Conrm the selection with button 5, permanently

appears, the adjustment has been saved.

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

3.3 Menu structure

The menu structure of the controller consists of 3 levels: the status level, the menu level and the adjustment level.

Status level INIT FLLT STAB TCOL TSRE ...

The status level consists of different display channels which indicate display values and messages.

The menu level consists of different menu items each of which is divided into sub-menus and adjustment channels. Each of these menu items represents a function or option which can be selected. If a function or option is selected, the controller changes to the adjustment level in which the

Menu level

ARR LOAD1 LOAD2 COL COL1 COL2 LLOGI

Adjustment level DT O DT F DT S RIS S MAX SMAXS ...

corresponding parameters of the function or option are available.

In order to activate or deactivate a function, it must be selected in the menu level. The display changes to the adjustment menu in which all adjustments required can be carried out.

During normal operation of the controller, the display is in the status level.

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SOM 9s

Note:

Some of the menu items depend on the selected system and the adjusted options. Therefore, they are only displayed if they are available.

Note:

The abstract from the menu structure shown above is for information on the structure of the controller menu and is therefore not complete.

Menu level

If it is possible to jump into a menu, PUSH is indicated below the menu item. Use button

to access the menu.

5

In order to leave the menu, press button 7. If an option is deactivated, it will appear in the menu level

with the addition OFF.

3.4 Indications and system monitoring display

The system monitoring display consists of 3 areas: channel display, tool bar and system screen.

Channel display

Tool bar

The additional symbols in the tool bar indicate the current system state.

The channel display consists of 2 lines. The upper display line is an alphanumeric 16-segment display. In this line, mainly channel names and menu items are displayed. In the lower 7-segment display, channel values and the adjustment parameters are displayed.

Temperatures and temperature differences are indicated with the unit (°C / °F or K / °R respectively).

Symbol normal ashing

COM

+

+ +

Relay active

Maximum tank limitation active / maximum tank temperature exceeded

Antifreeze function activated

SD card is being used SD card is full Indication of the buttons

available in the menu item Normal operation

Collector cooling function active System cooling, tank cooling active Collector minimum limitation active Antifreeze function active Collector emergency shutdown Sensor fault

Manual mode active

Tank emergency shutdown active Adjustment channel is being changed (set mode)

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SOM 9s

System screen in the system monitoring display

The system selected is indicated in the system monitoring display. It consists of several system component symbols which are – depending on the current status of the system

– either ashing, permanently shown or “hidden”.

Collector 1

Valve

Pumps

Tank heat exchanger

Sensors

Collector 2

Tank

Upper tank sensor

Tank 2 or backup heating/solid fuel boiler (with additional symbol)

Heating circuit (Heating backup)

Sensor Valve

Additional symbol for the burner operation

Collectors with collector sensor

Tank 1 and 2 with heat exchanger

3-port valve

ow direction or current switching

position are indicated.

Temperature sensor

Heating circuit (Heating backup)

Pump

Backupheating with burner symbol

3.5 Further indications

Fault indication

Smiley

If the controller detects a malfunction, the directional pad

ashes red and the symbols of the warning triangle and the

wrench are additionally displayed.

If the controller operates faultlessly (normal operation), a smiley is displayed.

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SOM 9s

4 Status menu

Display Description

BLPR1 Blocking protection R1 BLPR2 Blocking protection R2 BLPR3 Blocking protection R3 INIT Initialization FLLT Filling time STAB Stabilization TCOL Temperature collector TCOL1 Temperature collector 1 TCOL2 Temperature collector 2 TSTB Temperature tank bottom TST1B Temperature tank 1 bottom TSTT Temperature tank top TST2B Temperature tank 2 bottom TSFL Temperature solar ow TSRE Temperature solar return TSFB Temperature solid fuel boiler TSTR Temperature tank return preahting TRET Temperature - return S3 Temperature sensor 3 S4 Temperature sensor 4 S5 Temperature sensor 5 n1 Speed relay 1 n2 Speed relay 2 n3 Speed relay 3

During normal operation of the controller, the display is in the status level. This one indicates the measurement values shown in the table.

In addition to the adjustment values, possible error messages are indicated in the status menu (see chap. 98).

Display Description

n4 Status relay 4 h R1 Operating hours relay 1 h R2 Operating hours relay 2 h R3 Operating hours relay 3 h R4 Operating hours relay 4 L/h Flow rate Grundfos sensor BAR System pressure TSFL Temperature solar ow VFS TSRE Temperature solar return RPS TFHQM Temperature ow energy metering TRHQM Temperature return energy metering L/h Flow rate V40 or ow gauge kWh Heat quantity in kWh MWh Heat quantity in MWh TDIS Temperature thermal disinfection CDIS Countdown thermal disinfection DDIS Heating period thermal disinfection TIME Time DAT E Date

*

R4 is a standard relay not suitable for speed control. Therefore,

its status is indicated with 0 % or 100 % respectively.

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SOM 9s

5 Initial commissioning

When the hydronic system is lled and ready for operation,

connect the controller to the power supply. The controller runs an initialization phase in which all

symbols are indicated in the display. The directional pad

ashes red.

Commissioning menu

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

5

. The set symbol ashes and the adjustment can

When the controller is commissioned for the rst time or

when it is reset, it will run a commissioning menu after the initialization phase. The commissioning menu leads the user through the most important adjustment channels needed for operating the system and starts with the indication of the BX version number.

be made. Conrm the adjustment with button

button

, the next channel will appear in the display.

3

5

. Push

1. Language:

Î Adjust the desired menu language.

2. Unit:

Î Adjust the desired unit.

3. Time:

Î Adjust the clock time. First of all adjust the hours,

then the minutes.

4. Date:

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

month and then the day.

Buttonnavigation

adjustment mode

5

changing a value

2

4

conrming a value

5

to the next para-

3

meter

5. System:

Î Adjust the desired system.

6. Maximum tank temperature:

Î Adjust the maximum tank temperature.

In 2-tank systems, the adjustment has to be carried out for S1MAX and S2MAX as well.

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7. Loading tank 2:

Î Switch on or off the “loading tank 2” option.

Note:

“Loading tank 2” can only be adjusted if a 2-tank system or vertical tank loading has been selected in the sub channel ARR.

8. Pump control type:

Î Adjust the type of pump control for PUMP1

Carry out this adjustment for PUMP2 if needed.

9. Minimum speed:

Î Adjust the minimum pump speed for PUMP1

In systems with 2 pumps, the adjustment has to be carried out for PUMP2 as well.

Note:

The minimum speed can only be adjusted if pulse control (PULS) or PWM control (A, b, C) has been selected in the sub channel PUMP1,2.

10. Maximum speed:

Î Adjust the maximum pump speed for PUMP1

In systems with 2 pumps, the adjustment has to be carried out for PUMP2 as well.

Note:

The maximum speed can only be adjusted if pulse control (PULS) or PWM control (A, b, C) has been selected in the sub channel PUMP1,2.

11. Rangeoftheowratesensor:

Î Adjust the range of the sensor, if the ow rate sensor

is connected.

12. Range of the pressure sensor:

Î Adjust the range of the sensor, if the pressure sensor

is connected.

Î Complete the commissioning menu by pres-

sing button 5:

The controller is then ready for operation and normally the factory settings will give close to optimum operation.

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SOM 9s

6 Functions and options

6.1 Status level

Display of blocking protection time

Blockingprotection

BLPR1(2, 3)

Blocking protection active

Display of drainback time periods Initialization

INIT

Initialization active

Filling time

FLLT

Filling time active

Stabilization

Note:

The values and adjustment channels shown depend on the selected system, the functions and options and will only be displayed in the expert level.

In order to protect the pumps against blocking after standstill, the controller is equipped with a blocking protection function. This function switches on the relays every day at 12:00 a.m. for 10 s at 100%.

Indicates the time adjusted in tDTO, running backwards.

Indicates the time adjusted in tFLL, running backwards.

Indicates the time adjusted in tSTB, running backwards.

STAB

Stabilization

Display of collector temperatures

TCOL(1, 2)

Collector temperature Display range: -40 ... +500 °F

Display of tank temperatures

TST (1, 2)B, TST (1)T

Tank temperatures Display range : -40 ... +500 °F

DisplayoftemperaturesatS3,S4andS5

S3, S4, S5

Sensor temperatures Display range : -40 ... +500 °F

Displays the current collector temperature.

• TCOL : Collector temperature (1-collector system)

• TCOL1 : Collector temperature 1 (2-collector system)

• TCOL2 : Collector temperature 2 (2-collector system)

Displays the current tank temperature.

• TSTB : Tank temperature bottom

• TSTT : Tank temperature top

in 2-tank systems (only if available):

• TST1T : Temperature tank 1 top

• TST1B : Temperature tank 1 bottom

• TST2T : Temperature tank 2 top

• TST2B : Temperature tank 2 bottom

Indicates the current temperature at the corresponding additional sensor (without control function).

• S3 : Temperature sensor 3

• S4 : Temperature sensor 4

• S5 : Temperature sensor 5

Note: Only if temperature sensors are connected, will S3, S4 and S5 be displayed.

Note: In systems with return preheating, S3/S5 is used

as the heat source sensor TSTR.

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SOM 9s

Display of further temperatures

TSFB, TRET, TSTR, TFHQM, TRHQM, TSFL(VFS), TSRE (RPS)

Other measured temperatures Display range: -40 ... +500 °F

Displayofowrate

L/h

Flow rate Display range: 0 ... 9999 l/h

Display of pressure

BAR

Pressure Display range: 0 ... 10 bar

Indicates the current temperature at the corresponding sensor. The display of these temperatures depends on the system selected.

• TSFB : Temperature solid fuel boiler

• TRET : Temperature heating return

• TSTR : Temperature tank return preahting

• TFHQM : Temperature ow (HQM)

• TRHQM : Temperature return (HQM)

Indicates the measured current ow rate in the solar system. The ow rate value is used for calculating the heat

quantity supplied (V40 / VFS).

Indicates the current system pressure.

Note: The pressure will only be indicated if an RPS sensor is used.

Display of speed

n1 % , n2 % , n3 %

Current pump speed Display range: 30 ... 100 % standard pump; 20 ... 100 % HE pump

Operating hours counter

h R (1, 2, 3, 4)

Operating hours counter

Indicates the current speed of the corresponding pump.

The operating hours counter accumulates the solar operating hours of the relay (h R1 / h R2 / h R3 / h R4). Full hours are displayed.

The accumulated operating hours can be set back to 0. As soon as one operating hours channel is selected, the symbol

is displayed.

Î In order to access the RESET-mode of the counter, press

the set button

The display symbol will be set to 0.

Î Conrm the reset with the set button

nish the reset.

In order to interrupt the RESET-process, do not press any button for about 5 s. The display returns to the display mode.

5

.

will ash and the operating hours

5

in order to

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SOM 9s

Display of heat quantity

kWh/MWh:

Heat quantity in kWh / MWh

Display of monitoring period

Indicates the heat quantity produced in the system. For this purpose, the energy metering option has to be enabled.

The ow rate as well as the values of the reference sensors S1 (ow) and S4 (return) are used for calculating the heat

quantity supplied. It is shown in kWh in the channel kWh and in MWh in the channel MWh . The overall heat quantity results from the sum of both values.

The accumulated heat quantity can be set back to 0. As soon as one of the display channels of the heat quantity is selected, the symbol

Î In order to access the RESET-mode of the counter, press

the set button

The display symbol be set to 0.

Î Conrm the reset with the set button in order to nish

the reset.

In order to interrupt the RESET process, no button should be pressed for about 5 s. The display returns to the display mode.

is displayed.

5

for approx. 2 s.

will ash and the heat quantity will

CDIS

Countdown of monitoring period Display range: 0 ... 30:0 ... 24 (dd:hh)

Display of starting time

SDIS

Starting point Display range: 0:00 ... 24:00 (time)

Display of heating period

DDIS

Heating period Display range: 0:00 ... 23:59 (hh:mm)

If the thermal disinfection option (OTDIS) is activated and the monitoring period is in progress, the remaining time of the monitoring period is displayed as CDIS (in hours and minutes), counting backwards.

If the thermal disinfection option (OTDIS) is activated and starting delay time has been adjusted, the adjusted

delay time is displayed (ashing) in this channel.

If the thermal disinfection option (OTDIS) is activated and the heating period is in progress, the remaining time of the heating period is displayed (in hours and minutes) in this channel, counting backwards.

Display of time

Time

Adjust the current clock time.

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SOM 9s

6.2 Adjustment channels

Selecting the system

Arr

System Adjustment range: 1 ... 26 Factory setting: 1

DT-regulation

LOAD(1, 2) / DT(1, 2) O

Switch-on temperature difference Adjustment range: 2.0 ... 90.0 °R in steps of 1.0 °R Factory setting: 12.0 °R

LOAD 2) / DT(1, 2,) F

Switch-off temperature difference Adjustment range: 1.0 ... 89.0 °R in steps of 1.0 °R Factory setting: 8.0 °R

Note:

If the controller is commissioned for the rst

time, the commissioning menu will start. The subsequent selection of a new system will reset all other adjustments to the factory settings.

Selection of the appropriate system. Each system has pre-programmed options and adjustments which can be activated or changed respectively if necessary. Select the

system rst (see chap. 3).

The controller works as a standard differential controller. If the switch-on difference is reached, the pump is activated. When the temperature difference reaches or falls below the adjusted switch-off temperature difference, the respective relay switches off.

Note:

The switch-on temperature difference is blocked against the switch-off temperature difference by 1 °R. DT O must be at least 1 °R higher than DT F. The set temperature difference must be at least 1 °R higher than the switch-on temperature difference.

Speed control

LOAD(1, 2) / DT(1, 2,) S

Set temperature difference Adjustment range: 3.0... 90.0 °R in steps of 1.0 °R Factory setting: 20.0 °R

LOAD(1, 2) / RIS(1, 2)

Rise Adjustment range: 2.0 ... 40 °R in steps of 2 °R Factory setting: 4 °R

Maximum tank temperature

LOAD(1, 1.2) / S(1,2) MAX

Maximum tank temperature Adjustment range: 40 ... 200 °F in steps of 2 °F Factory setting: 140 °F

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Note:

To enable speed control, the corresponding relay has to be set to “Auto” (adjustment channel MAN) and the pump control type has to be set to Puls, A, b, or C (adjustment channel PUMP).

When the switch-on temperature difference is reached, the pump is activated at 100% speed for 10 s. Then, the speed is reduced to the minimum pump speed value.

If the temperature difference reaches the adjusted nominal value (DT S), the pump speed increases by one step (10 %). The response of the controller can be adapted via the parameter “Rise”. If the difference increases by the adjustable rise value RIS, the pump speed increases by 10 % until the maximum pump speed of 100 % is reached. If, at decreasing temperatures, the temperature difference decreases by the adjustable rise value RIS, the pump speed decreases by 10 %.

If the tank temperature reaches the adjusted maximum temperature, the tank will no longer be loaded in order to avoid damage caused by overheating. If the maximum tank temperature is exceeded,

The corresponding reference sensor can be chosen, see “Sensor maximum tank temperature”.

Switch-on hysteresis -4K

is displayed (ashing).

SOM 9s

Sensor maximum tank temperature

LOAD(1,2) / S(1,2)MAXS

Sensor tank maximum temp. Adjustment range: 1-tank system: S2, S3 2-tank system: S4, S5 Factory setting: 1-tank system: S2 2-tank system: S4

Loading tank 2

LOAD2 / LST2

Loading tank 2 Selection: ON / OFF Factory setting: ON

Pump control

PUMP / PUMP1 (2, 3,)

Pump control Selection: OnOF, Puls, PWM A, PWM b, PWM C, Factory setting: OnOF

Allocation of the sensor for tank maximum limitation. The maximum limitation always refers to the sensor selected. If S3 is selected, the differential control will be carried out using S1 and S2. The temperature at S2 can exceed the adjusted limit temperature, the system will not switch off. If the value at S3 reaches the limit temperature, the system will be switched off.

Note: In 1-tank systems with sensor S3 as the reference

sensor, loading will be switched off if the temperature at S2 or S3 reaches the tank emergency shutdown temperature.

In 2-tank systems, loading will be switched off if the temperature at S4 or S5 reaches the tank emergency shutdown temperature.

In a 2-tank system, the second tank can be switched off for loading via the parameter LST2.

If LST2 is adjusted to OFF, the system runs like a 1-tank system. The representation in the display does not change.

With this parameter, the pump control type can be adjusted. The following types can be selected:

Adjustment for standard pump without speed control

• OnOF (pump on / pump off) Adjustment for standard pump with speed control

• PULS (pulse packet control via semiconductor relay) Adjustment for high efciency pump (HE pump)

• PWM A (Wilo)

• PWM b (Grundfos)

• PWM C (Laing)

Note:

For more information about connecting HE pumps, see page 68.

Note:

PUMP3 can only be set to OnOf or PULS.

Minimum speed

PUMP1 (2, 3) / n1 (2, 3 LO

Speed control Adjustment range: 20 ... 100 % in steps of 5% Factory setting: 30 %

Maximum speed

PUMP1 (2, 3) / n1 (2, 3) HI

Speed control Adjustment range: 20 ... 100 % in steps of 5% Factory setting: 100 %

In the adjustment channel n1(2,3)LO, a relative minimum speed for connected pumps can be allocated to the outputs R1, R2 and R3.

Note:

When loads which are not speed-controlled (e. g. valves) are used, the value of the corresponding relay (n1, n2, n3) must be set to 100% or the pump control type must be set to OnOF in order to deactivate pump speed control.

In the adjustment channel n1(2,3)HI, a relative maximum speed for connected pumps can be allocated to the outputs R1, R2 and R3.

Note:

When loads which are not speed-controlled (e. g. valves) are used, the value of the corresponding relay (n1, n2, n3) must be set to 100% or the pump control type must be set to OnOF in order to deactivate pump speed control.

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SOM 9s

Collector emergency shutdown

COL(1,2) / CEM(1,2)

Collector emergency temperature Adjustment range: 170 ... 390 °F in steps of 2 °F Factory setting: 270 °F Switch-on hysteresis: -10 °R

When the collector temperature exceeds the adjusted collector emergency temperature (CEM / CEM1 / CEM2), the solar pump (R1 / R2) is switched off in order to protect the system components against overheating (collector emergency shutdown). If the maximum collector temperature is exceeded,

WARNING! Danger of injury and system da-

is displayed (ashing).

Note:

If the drainback option ODB is activated, the adjustment range of the collector emergency temperature is changed to 170 ... 200 °F. Factory setting in that case is 200 °F.

mage through pressure surges!

If water is used as a heat transfer medium in a pressure-less system, the water will start boiling at 212 °F

Î If a pressure-less drainback

system is used with water as a

heattransfermedium,do not

adjust the collector temperature limitation CEM to more than 200 °F

Collector cooling

COL(1,2) / OCCO(1,2)

Adjustment range ON / OFF Factory setting: OFF

COL (1,2) / OCCO(1,2) / CMAX(1,2)

Collector maximum temp. Adjustment range: 150 ... 320 °F in steps of 2 °F Factory setting: 230 °F Switch-on hysteresis: -10 °R

Minimum collector limitation

COL(1,2) / OCMI(1,2)

Collector minimum temp. Adjustment range: ON / OFF Factory setting: OFF

COL (1,2) / OCMI(1,2) / CMIN(1,2)

Collector minimum temp. Adjustment range: 50 ... 190 °F in steps of 2 °F Factory setting: 50 °F

This function is used for keeping the system temperatures and consequently the thermal load as low as possible. When the tank temperature exceeds the adjusted maximum tank temperature, the system stagnates. If the collector temperature increases to the adjusted maximum collector temperature, the solar pump is activated until the collector temperature falls below the maximum collector temperature. The tank temperature may then exceed the maximum temperature, but only up to 200 °F (emergency shutdown of the tank). If the collector cooling is active,

Note:

This function is only available, if the system cooling function and the heat dump function are deactivated.

The minimum collector temperature is the minimum switchon temperature which must be exceeded for the solar pump (R1 / R2) to switch on. The minimum temperature prevents the pump from being switched on too often at low collector temperatures. If the collector temperature falls below the adjusted minimum temperature,

is displayed (ashing).

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SOM 9s

Evacuated tube collector function

COL / OTCO (1, 2)

Evacuated tube collector function Selection: ON / OFF Factory setting: OFF

COL / OTCO (1, 2) / TCST (1, 2)

Starting time Adjustment range: 00:00 ... 23:00 Factory setting: 07:00

COL / OTCO (1, 2) / TCEN (1, 2)

Ending time Adjustment range: 00:30 ... 23:30 in steps of 00:30 Factory setting: 19:00

COL / OTCO (1, 2) / TCRU (1, 2)

Runtime Adjustment range: 30 ... 300 s in steps of 5 s Factory setting 30 s

COL / OTCO (1, 2) / TCIN (1, 2)

Standstill interval Adjustment range: 5 ... 60 min in steps of 00:01 Factory setting: 30 min

This function helps overcome the non-ideal sensor position with some evacuated tube collectors.

This function operates within an adjusted time frame, beginning at TCST and ending at TCEN. It activates the collector circuit pump for an adjustable runtime (TCRU) between adjustable standstill intervals (TCIN) in order to compensate for the delayed temperature measurement.

If the runtime TCRU is set to more than ten seconds, the

pump will be run at 100 % for the rst 10 s of the runtime.

For the remaining runtime, the pump will be run at the adjusted minimum speed nLO.

If the collector sensor is defective or the collector is blocked, this function is suppressed or switched off.

2-collector systems

In 2-collector systems, the evacuated tube collector function

is available for each collector eld (OTCO2). If one of the collector elds is being loaded, the heat transfer

uid ows through the inactive eld and only the correspon-

ding relay is energized.

Multi-tank systems

If the evacuated tube collector function is activated, the speed of the solar pump will decrease to nLO during the loading break time. The solar loading of the subordinate tank will continue.

In 2-collector systems, during the loading break time the

collector eld which has been active before the loading

break time remains active during the loading break time, unless the evacuated tube collector function of the inactive

eld becomes active.

Note:

If the drainback option ODB is activated, the evacuated tube collector function OTCO will not be available.

81 |

SOM 9s

Antifreeze function

COL (1) / OCFR

Antifreeze function Selection: ON / OFF Factory setting: OFF

COL (1) / OCFR / CFR O

Antifreeze temperature on Adjustment range: -40...+46 °F Factory setting: 40 °F

COL (1) / OCFR / CFR F

Antifreeze temperature off Adjustment range: -39...+48 °F Factory setting: 42 °F

COL (1) / OCFR / FRPST

Sensor selection Selection: 1, 2 Factory setting: 1 in 2-tank systems only

Priority logic

The antifreeze function activates the loading circuit between the collector and the tank when the temperature falls below the adjusted temperature CFR O. This will protect the uid against freezing or coagulating. If CFR F is exceeded, the solar pump will be switched off again.

The antifreeze function will be suppressed if the tank temperature of the selected tank falls below 42 °F. In 2-tank systems, the function will switch to the second tank, in systems with vertical tank loading, it will switch to the upper tank zone. If the temperature of the second tank (or of the upper tank zone respectively) also falls below 42 °F, the system will be switched off.

Note:

Since this function uses the limited heat quantity of the tank, the antifreeze function should be used in regions with few days of temperatures around the freezing point.

Note:

This function can only become active if the tank temperature is higher than the collector temperature.

Note:

Priority logic can be used in 2-tank systems or systems with vertical tank loading only.

LLOGI / PRIO

Priority logic Adjustment range: 0, 1, 2, Su1, Su2 Factory setting: 1

Factory setting: 2 (stratied tank)

LLOGI / tLB

Loading break time Adjustment range: 1 ... 30 min Factory setting: 2 min

LLOGI / tRUN

Oscillating loading time Adjustment range: 1 ... 30 min Factory setting: 15 min

Note:

If priority Su 1 or Su 2 is adjusted, solar loading of the subordinate tank will be interrupted, if the temperature of the priority tank (tank1 for Su 1, tank 2 for Su 2) falls below its adjusted maximum temperature. If, in that case, the temperature difference between the priority tank

and the collector is not sufciently high, solar

loading will be stopped completely.

| 82

Priority logic can be used in 2-tank systems or systems with vertical tank loading only and determines how the heat is divided between the tanks. Different types of priority logic are adjustable:

tank sequence control (1 and 2) successive loading (Su 1 and Su 2) parallel loading (0)

1. If PRIO 1 or PRIO 2 is adjusted, the corresponding tank (1=tank 1; 2=tank 2) will be loaded with priority if its

switch-on conditions are fullled and if it is not blocked. If

the priority tank is not blocked but its switch-on conditions

are not fullled, the tank sequence control starts provided

that the switch-on conditions of the subordinate tank are

fullled.

If a subordinate tank can be loaded, it will be loaded for the oscillating loading time tRUN. After the loading time has ended, the pump is switched off for the loading break tLB. If during this time the priority tank can be loaded, it will be loaded. If the priority tank has reached its maximum temperature, the subordinate tank will be loaded up to its maximum temperature without oscillating loading logic.

2. If priority Su 1 or Su 2 is adjusted, the priority tank will be loaded up to its maximum temperature. If the maximum temperature is reached, the second tank will be loaded. If the temperature of the rst tank falls below SMAX, the second tank will no longer be loaded, regardless of whether the switch-on conditions of the priority tank or of the sub-

ordinate tank are fullled or not.

3. In systems with 2 pumps, both tanks will be loaded if the corresponding switch-on conditions are fullled if PRIO 0

is adjusted. In systems with 3-port valves, the tank with the lowest

temperature will be loaded rst until its temperature is by

10 °R above the other tank. Loading will be switched to the other tank. Then, the 2 tanks will be loaded alternately in steps of 10 °R.

SOM 9s

Tank set option

LLOGI / PRIO / OSTS

Tank set option Selection ON / OFF Factory setting: OFF

LLOGI / PRIO / TST1

Set temperature tank 1 Adjustment range: 38 ... 185 °F Factory setting: 110 °F

LLOGI / PRIO / TST2

Set temperature tank 2 Adjustment range: 38 ... 185 °F Factory setting: 110 °F

Spreaded loading option

(for PRIO 1, 2, Su 1 or Su 2 only)

LLOGI / PRIO / OSE

Spreaded loading option Selection: ON / OFF Factorsy setting: OFF

LLOGI / PRIO / DTSE

Temperature diff. Spreaded loading Adjustment range: 40 ... 160 °R Factory setting: 70 °R

Additionally, the following options can be activated: Tank set option OSTS: If the selected priority tank

reaches its set temperature, the subordinate tank will be loaded until it reaches its set temperature. After that, the priority tank will be loaded up to its maximum tank temperature, then the subordinate tank. This function is available in all 2-tank systems.

Spreaded loading option OSE: In 2-tank systems with 2 pumps, a spreaded loading function can be activated.

As soon as the adjustable spread difference DTSE between the collector and the priority tank is reached, the second tank will be loaded in parallel unless it is blocked. If the temperature difference falls by 4 °R below DTSE, the pump is switched off.

The collector temperature has to be higher than the tank temperature.

Pause control

LLOGI / PSPEE

Pause speed Selection: ON / OFF Factory setting: OFF

LLOGI / PDELA

Pump delay Selection: ON / OFF Factory setting: OFF

This function takes into account the actuation times of valves and switches on the pump with a delay.

If the pause speed is activated, the relay of the tank which has been loaded last remains switched on during the loading break time. Speed is determined by the value adjusted in nLO.

If the pump delay is activated, the corresponding relay for the valve will be energized rst. The pump(s) will be activated with the delay time (200s).

Note:

In systems with pump logic, the parameter PDELA is not available.

83 |

SOM 9s

Drainback option

LLOGI / ODB

Drainback option Selection: ON / OFF Factory setting: OFF

A drainback system permits the heat transfer uid to drain

back into the holding tank when solar energy is not coll-

ected. The drainback option will initiate the lling of the

system when solar loading begins. If the function is activated, the menu items described in the following (tDTO, tFLL and tSTB) have to be adjusted:

Note: A drainback system requires additional com-

ponents such as a holding tank. The drainback option should only be activated if all components required are properly installed.

Note:

If the drainback option ODB is activated, the cooling functions and the antifreeze function will not be available.

Time period - switch-on condition

LLOGI/ODB/tDTO

Time period - switch-on condition Adjustment range: 1 ... 100 s in steps of 1 s Factory setting: 60 s

Filling time

LLOGI/ODB/tFLL

Filling time Adjustment range:

1.0 ... 30.0 min in steps of 0.5 min Factory setting: 5.0 min

Note:

The drainback option is only available in system

with one tank and one collector eld and if no

cooling function is activated.

Note: If the drainback option ODB is activated, the

factory settings of the parameters DT O, DT F and DT S will be adapted to values suiting drainback systems. Additionally, the adjustment range and the factory setting of the collector emergency shutdown CEM will change.

Previous adjustments made in these channels will be overridden and have to be entered again if ODB is deactivated later on.

The parameter tDTO is used for adjusting the time period during which the switch-on condition DT O must be per-

manentely fullled.

The lling time can be adjusted using the parameter tFLL.

During this period, the pump runs at 100 % speed.

Stabilization

LLOGI/ODB/tSTB

Stabilization Adjustment range:

1.0 ... 15.0 min in steps of 0.5 min Factory setting: 2 min

Boosterfunction

LLOGI/ODB/OBST

Booster function Adjustment range: ON / OFF Factory setting: OFF

Overrun

LLOGI/OOVRU

Selection: ON / OFF Factory setting: OFF

| 84

The parameter tSTBis used for adjusting the time period during which the switch-off condition DT F will be ignored

after the lling time has ended.

This function is used for switching on a second pump when

lling the solar system. When solar loading starts, R3/R4 is energized in parallel to R1. After the lling time (tFLL) has

ended, R2 is switched off.

Note: The booster function is available in systems 1, 3,

8, 9, and 10 only.

By means of this function, tank loading continues after the temperature difference between the collector and the tank has fallen below the switch-off difference. Tank loading is stopped if the adjusted DT overrun difference between ow and return sensor is underrun.

SOM 9s

LLOGI/DTOVR

Adjustment range: 0.0 ... 40.0 °R Factory setting: 10 °R

Cooling functions

System cooling

CooL / OSYC

System cooling option Adjustment range: ON / OFF Factory setting: OFF

COOL / DTCO

Switch-on temperature diff. Adjustment range: 2.0 ... 60.0 °R Factory setting: 40.0 °R

COOl / DTCF

Switch-off temperature diff. Adjustment range: 1.0 ... 59.0 °R Factory setting: 30.0 °R

Tank cooling

COOl / OSTC

Option tank cooling Adjustment range: ON / OFF Factory setting: OFF

Heat dump

COOL / OHDP

Heat dump function Selection: ON / OFF Factory setting: OFF

COOl / OTCL

Overtemperature collector Adjustment range: 150 ... 320 °F Factory setting: 230 °F

COOL / OTPUM

Pump or valve logic Selection: ON / OFF Factory setting: OFF

Different cooling functions can be activated: system cooling, tank cooling and heat dump.

The system cooling function aims to keep the solar system operational for a longer time. The function overrides the maximum tank temperature to provide thermal relief of

the collector eld and the heat transfer uid on hot days.

If the tank temperature is higher than the adjusted maximum tank temperature and the switch-on temperature difference DTCO is reached, the solar system remains activated or is switched on. Solar loading is continued until either the temperature difference falls below the adjusted value DTCF or the collector emergency shutdown temperature CEM is reached.

If the system cooling function is active,

display (ashing).

When the tank cooling function is activated, the controller aims to cool down the tank during the night in order to prepare it for solar loading on the following day.

If the adjusted maximum tank temperature (S MAX / S1MAX / S2MAX) is exceeded and the collector temperature falls below the tank temperature, the system will be reactivated in order to cool down the tank.

Reference temperature differences are DT O and DT F.

If the heat dump function OHDP is activated, the selected relay is energized with 100%, if the collector temperature reaches the adjusted collector overtemperature OTCL.

If the collector temperature falls by 10 °R below the adjusted collector overtemperature OTCL, the relay will be switched off.

A selection can be made between pump logic and valve logic (OTPUM ON = pump logic, OTPUM OFF = valve logic).

If pump logic is selected, the relay for solar loading switches off and the relay for heat dump remains switched on.

The relay for the heat dump function can be selected in the HDREL channel.

COOL / HDREL

Relay heat dump function Selection: system dependent Factory setting: 3

Note: The overrun function is only available, if both

Grundfos sensors (VFS and RPS) are used.

Note:

If the temperature at the tank sensor reaches 200 °F, all cooling functions will be blocked. The switch-on hysteresis is 10 °R.

is shown on the

Note:

This function will only be available if the collector cooling function, the heat dump function, and the drainback option are deactivated.

Note:

The adjustable value OTCL is locked against the collector emergency temperature CEM by 20 °R. The heat dump will only be available if the collector cooling function, the system cooling function, and the drainback option are deactivated.

85 |

SOM 9s

Heat exchange function / solid fuel boiler / return preheating

DT3 / DT3O

Switch-on temperature diff. Adjustment range: 2.0 ... 90.0 °R in steps of 1.0 °R Factory setting: 12.0 °R

DT3 / DT3F

Switch-off temperature diff. Adjustment range: 1.0 ... 89.0 °R in steps of 1.0 °R Factory setting: 8.0 °R

DT3 / DT3S

Set temperature diff. Adjustment range: 3.0 ... 90.0 °R in steps of 1.0 °R Factory setting: 20.0 °R

DT3 / RIS3

Rise Adjustment range: 2 ... 40 °R in steps of 2 °R Factory setting: 4 °R

Maximum temperature limitation

DT3 / MAX3O

Switch-on temperature Adjustment range: 3

0.0...200.0 °F Factory setting: 140 °F

DT3 / MAX3F

Switch-off temperature Adjustment range:

30.0...200.0 °F Factory setting: 136 °F

Minimum temperature limitation

DT3 / MIN3O

Switch-on temperature Adjustment range:

30.0 ...190.0 °F Factory setting: 40 °F

DT3 / MIN3F

Switch-off temperature Adjustment range:

30.0 ...190.0 °F Factory setting: 50 °F ARR= 2, 11, 16, 17, 18 MIN3O 40 °F MIN3F 50 °F ARR= 8, 13, 26 MIN3O 140 °F MIN3F 149 °F

The heat exchange function is used for transporting heat from tank 1 to tank 2.

Additionally, minimum and maximum temperature limits and the corresponding switch-on and switch-off differences can be set for the independent temperature differential control. Both switch-on and switch-off temperature differences

DT3O and DT3F as well as the set temperature difference DT3S and rise RIS3 are valid.

If the adjusted value MAX3O is exceeded, the relay will be switched off. If the temperature falls below the adjusted value MAX3F, the relay will be energized.

Reference sensor: S3 for ARR 8, 13, 26 (TSTT) S4 for ARR 2, 11, 16, 17, 18, 24 (TST2B)

If the temperature falls below the adjusted value MIN3O, the relay will be switched off. If the adjusted value MIN3F is exceeded, the relay will be energized.

Reference sensor: S3 for ARR 8, 13, 26 (TSFB) S4 for ARR 2, 11, 16, 17, 18, 24 (TSTT)

| 86

SOM 9s

DT3 / S2DT3

Reference sensor tank 1 Selection: 2, 3 Factory setting: 3 Reference sensor tank 2 Selection: 4, 5 Factory setting: 4

Return preheating

DT3 / S2DT3

Reference sensor Selection: 3, 5 Factory setting: 3

The reference sensor for the heat exchange function (heat source) for tank 1 is sensor S3 (TSTT). The reference sensor (heat sink) for tank 2 (S2DT3) is S4. It can be changed to S5 and is used for the differential function and the maximum limitation.

For the solid fuel boiler function, the reference sensor (heat source) for the solid fuel boiler is sensor S4. The reference sensor (heat sink) for the tank is S3, but it can be changed to S2.

Allocation of a sensor for the minimum and maximum limitation, instead of S4/S3.

In order to heat the heating circuit return by means of heat supplied by the solar circuit, the controller is equipped with a return preheating function.

If the switch-on temperature difference DT3O between the sensors S3 or S5 (TSTR) and S4 (TRET) is exceeded, a 3-port valve for heating circuit backup is controlled via the relay output R2/R3. Free sensors (S3 or S5) can be allocated for this function (S2DT3).

Note:

In systems with east-/west collectors, S5 is not available.

Thermostat function

Backup heating Use of surplus energy

AH / AH O

Thermostat switch-on temp. Adjustment range: 30...480 °F in steps of 1 °F Factory setting: 110 °F

AH / AH F

Thermostat switch-off temp. Adjustment range:30...480 °F in steps of 1 °F Factory setting: 120 °F

The thermostat function works independently from the solar operation and can be used for using surplus energy or for backup heating.

• AH O < AH F thermostat function for backup heating

• AH O > AH F thermostat function for using surplus energy

87 |

SOM 9s

AH / t1O

Switch-on time 1 Adjustment range: 00:00...23:45 Factory setting: 06:00 in steps of 15 min

AH / t1F

Switch-off time 1 Adjustment range: 00:00...23:45 Factory setting: 22:00

AH / T2 (3) O

Switch-on time 2 (3) Adjustment range: 00:00 ... 23:45 Factory setting: 00:00

AH / T2 (3) F

Switch-off time 2 (3) Adjustment range: 00:00 ... 23:45 Factory setting: 00:00

Manual mode

MAN / MAN1 (2, 3):

Adjustment range: Auto, ON, OFF, nLO, nHI Factory setting: Auto

In order to block the thermostat function for a certain period, there are three time frames t1 ... t3. The switch-on and switch-off times can be adjusted in steps of 15 minutes. If the switch-on and the switch-off time are identical, the time frame is inactive.

If the thermostat function should run from 06:00 a.m. and 09:00 a.m. only, adjust t1O to 06:00 a.m. and t1F to 09:00 a.m.

The rst time frame is factory set from 06:00 to 22:00.

If all time frames are set to 00:00, the thermostat function is solely temperature dependent.

For control and service work, the operating mode of the controller can be manually adjusted. For this purpose, select the adjustment value MAN. The following adjustments can be carried out:

MAN / MAN4

Adjustment range: Auto, ON, OFF Factory setting: Auto

Note:

Always adjust the operating mode back to “Auto” when the control and service work is completed Otherwise normal operation will not be possible.

Blockingprotectionoption

Blockingprotection

BLPR1(2, 3)

Blocking protection Selection: ON / OFF Factory setting: OFF

Auto : relay in automatic mode ON : relay is switched on OFF : relay is switched off nLO : relay is switched with adjusted minimum speed nHI : relay is switched with adjusted maximum speed

In order to protect the pumps against blocking after standstill, the controller is equipped with a blocking protection function. This function switches on the relays 1-3 every day at 12:00 a.m. for 10 s at 100%.

| 88

SOM 9s

Option: Thermal disinfection (OTDIS)

OTDIS

Thermal disinfection function Adjustment range: ON / OFF Factory setting: OFF

OTDES / PDIS

Monitoring period Adjustment range: 0 ... 30:0 ... 24 (dd:hh) Factory setting: 01:00

OTDES / DDIS

Heating period Adjustment range: 00:00...23:59 Factory setting: 01:00

OTDES / TDIS

Disinfection temperature Adjustment range: 30...200 °F in steps of 2 °F Factory setting: 140 °F

Note:

If the thermal disinfection option OTDIS is acti- vated, the display channels TDIS and CDIS will be displayed. TDIS will be displayed regardless of the temperature measured at the reference sensor.

Thermal disinfection with starting delay

OTDIS / SDIS

Starting time Adjustment range: 00:00 ... 24:00 Factory setting: 18:00 (6:00 p.m.) full hours only

Reference sensor for the thermal disinfection is S3! It is possible to adjust this sensor in the channel TSDIS.

This function is used for protecting the upper tank zone against legionella by activating the backup heating. For thermal disinfection, the temperature in the upper DHW tank zone has to be monitored. This protection is ensured when, during the monitoring period PDIS, the disinfection temperature TDIS is continuously exceeded for the entire heating period DDIS. S3 is used as the reference sensor and displayed as TSTT.

If OTD is activated, PDIS will start as soon as the tempe- rature at S3 falls below TDIS. The display channel CDIS appears, counting backwards the remaining time of PDIS. If, during the monitoring period, the temperature at S3 exceeds TDIS continuously for the duration of DDIS, thermal disinfection is considered complete and a new monitoring period begins.

If CDIS counts down to 00:00, relay 2 will be operated in order to use the backup heating for thermal disinfection. CDIS will then be replaced with a display channel DDIS showing the adjusted heating period. DDIS will start counting down the heating period as soon as TDIS is exceeded at S3. As long as DDIS is active, the temperature at S3 will be displayed as TDIS instead of TSTT.

If, during DDIS, the temperature at S3 exceeds TDIS by more than 10 °R, relay 2 is switched off until the temperature falls below TDIS + 4 °R.

If, during DDIS, the temperature at S3 falls below TDIS, the heating period will restart. DDIS can only be completed when TDIS is exceeded without interruption.

Due to the exible control logic, the exact time of thermal disinfection is not predictable. In order to set a xed time

for the disinfection to be run, the starting delay SDIS must be used:

When a starting time for thermal disinfection with starting delay is adjusted in SDIS, the thermal disinfection will be delayed until that time, even after the CDIS has counted down to 00:00. If CDIS ends, for example, at 12:00, and SDIS has been set to 18:00 (6:00 p.m.), relay 2 will be operated with a delay of 6 hours at 18:00 (6:00 p.m.) instead of 12:00. During the waiting time, SDIS is displayed with the adjusted

starting time (ashing).

If, during the waiting time, the temperature at S3 exceeds TDIS for the adjusted heating period DDIS, thermal disinfection is considered complete and a new monitoring period begins. If the starting time is adjusted to 00:00 (factory setting), the delay function is inactive.

Upon delivery, OTDIS is deactivated. The adjustment values PDIS,TDIS,DDIS and SDIS are displayed after the option has been activated. After the thermal disinfection function has been completed, the values will be “hidden” and the monitoring period will be displayed.

89 |

SOM 9s

OTDIS / TSDIS

Sensor thermal disinfection Adjustment range 2, 3, 4, 5 Factory setting: 3

OTDIS / RDIS

Relay thermal disinfection Adjustment range 2, 3, 4 Factory setting: 3

Parallel relay

OPARR / PARRE

Parallel relay Adjustment range 2, 3, 4 Factory setting: system-dependent

Energy metering

For this function, free sensors at an appropriate position can be selected. Reference sensor for the thermal disinfection is S3.

The relay for the thermal disinfection function can be selected.

With this function, e. g. a valve can be controlled in parallel to the pump via a separate relay PARRE.

If solar loading takes place (R1 and/or R2) or if a solar function is active, the relay selected will be energized. The parallel relay can also be energized inversely (INVER).

Note: If R1 and/or R2 are in the manual mode, the se-

lected parallel relay will not be energized.

OHQM

Energy metering Adjustment range: ON / OFF Factory setting: OFF

OHQM / FTYPE

Flow rate detection type Selection: 1, 2, 3 Factory setting: 1

OHQM / FMAX

Flow rate Adjustment range:

0.5... 100.0 l/min in steps of 0.1 l/min Factory setting: 6.0 l/min

OHQM / MEDT

Heat transfer uid Adjustment range: 0...3 Factory setting: 3

Energy metering can be carried out in 3 different ways (see

below): without owmeter V40, with owmeter V40 or with

Grundfos sensor.

Î Enable the energy metering option in the channel

OHQM.

Î Select the type of ow rate detection in the channel

FTYPE.

Flow rate detection type:

1 : xed ow rate value 2 : V40 3 : VFS sensor

Note: Type 3 can only be selected if the Grundfos sen-

sors have been activated in the channel GFDS.

Energymeteringwithxedowratevalue

The energy metering calculation (estimation) uses the

difference between ow and return temperature and the entered ow rate (at 100 % pump speed).

Î Adjust 1 in the channel FTYPE Î Read the ow rate (l/min) and adjust it in the channel

FMAX.

Î Adjust the antifreeze type and concentration of the heat

transfer uid in the channels MEDT and MED%.

| 90

Note: FMAX cannot be selected in systems with 2

solar pumps (ARR 6, 7, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26).

SOM 9s

OHQM / MED%

Antifreeze concentration in vol.% MED% is “hidden” when MEDT 0 or 3 is used Adjustment range: 20 ... 70 % in steps of 1 % Factory setting: 45 %

OHQM / FIMP

Impulse rate Adjustment range: 0.5 ... 99.0 in steps of 0.1 Factory setting: 1.0

Antifreeze type:

0 : water 1 : propylene glycol 2 : ethylene glycol 3 : Tyfocor

EnergymeteringwithowmeterV40

Î 2FTYPEFIMPMEDT MED%Energy metering with

VFS sensor:

Î FTYPEMEDT MED%

®

LS / G-LS

HQM sensors

OHQM / SFHQM

Flow sensor Adjustment range: 1, 2, 3, 5 Factory setting: 1

OHQM / SRHQM

Return sensor Adjustment range: 2, 3, 4, 5 Factory setting: 4

Grundfossensorsandowratemonitoring

GFDS / VFS

Selection: OFF / 1-12 / 2-40 Factory setting: OFF

GFDS / RPS

Selection: OFF / 0-10 Factory setting: OFF

GFDS / OFLOW

Selection: ON / OFF Factory setting: OFF

If the ow rate detection type FMAX or V40 has been adjusted, the ow and the return sensor for energy metering

can be selected.

Î In the channel SFHQM select the ow sensor. Î In the channel SRHQM select the return sensor.

For this function, free sensors at an appropriate position can

be selected. The pre-adjusted ow sensor is S1, the return

sensor is S4.

In this menu point the Grundfos sensors can be registered. If Grundfos sensors (VFS) are connected and registered,

ow rate monitoring OFLOW can be carried out during solar loading. If no ow rate has been detected for 30 s, the

error message EFLOW is diplayed in the status menu (see

ow rate monioring option).

Note: To deactivate the VFS or the RPS sensor, the

functions using these sensors have to be deac-

tivated rst.

91 |

SOM 9s

Overpressure

PRS > OOVPR

Overpressure Adjustment range: ON / OFF Factory setting: OFF

PRS / OVPRO

on at Adjustment range: 0.6 ... 6.0 bar Factory setting: 5.5 bar

If the system pressure exceeds the adjustable maximum value OVPRO, an error message will appear. If the system pressure exceeds or falls below the switch-off threshold, the relay will be deblocked.

In the case of an overpressure, the message EPRES will be displayed.

PRS / OVPRF

off at Adjustment range: 0.3 ... 5.7 bar Factory setting: 5.0 bar

Low pressure (leakage)

PRS / OLEAK

Low pressure Adjustment range: ON / OFF Factory setting: OFF

PRS / LEAKO

on at Adjustment range: 0.3 ... 5.7 bar Factory setting 0.7 bar

PRS / LEAKF

off at Adjustment range: 0.6 ... 6.0 bar Factory setting: 1.0 bar

Time and date.

DatE/Time

Time Adjustment range: 00:00...23:59 Factory setting: 12:00

DatE/YYYY

Year Adjustment range:

2010...2099 Factory setting: 2010

DatE/MM

Month Adjustment range: 01...12 Factory setting: 03

DatE/DD

Day Adjustment range: 01...31 Factory setting: 15

Note: The monitoring function is only available, if the

Grundfos sensor RPS is used.

The switch-on threshold (factory setting 0.7 bar) can be adjusted. If the system pressure falls below the adjusted value, the error message is displayed until the system pressure exceeds the switch-off threshold (factory setting 1.0 bar).

In the case of low pressure, the message ELEAK will be displayed.

Note: The monitoring function is only available, if the

Grundfos sensor RPS is used.

The date and time can be entered. Both are required for the thermostat function.

In the display, the upper line indicates the day followed by the month. The lower line indicates the year.

Temperature unit

UNIT

Temperature unit Selection: °C, °F Factory setting: °F

| 92

In this adjustment channel the temperature unit can be chosen.

The unit can be switched between °C and °F during operation.

SOM 9s

Language

LANG

Language Selection: dE,En Factory setting: En

SD card

In this adjustment channel, the menu language can be chosen.

• dE : German

• En : English

If an SD card is used, card is full,

COM

is ashing.

is shown on the display. If the SD

OSDC / OSDC

SD card Selection: ON / OFF Factory setting: OFF

OSDC / LOGI

Logging interval Adjustment range: 1 ... 1200 s Factory setting: 60 s

OSDC / LLOG

Linear logging Selection: ON / OFF Factory setting: OFF

OSDC / REMC

Safely remove card Selection: ON / OFF Factory setting: OFF

OSDC / FORM

Format card

Starting the logging

Î Insert the SD card into the slot

Logging will start immediately.

Î Adjust the desired logging interval

When LLOG is activated, data logging will stop if the capacity limit is reached. The message CFULL will be displayed.

When LLOG (linear logging) is deactivated, the oldest data logged onto the SD card will be overwritten as soon as the capacity limit is reached.

Completing the logging process

Î Select the menu item REMC Î After -REM is displayed remove the card from the slot

Formatting the SD card

Î Select the menu item FORM During the formatting process, --FORM will be displayed. The content of the card will be deleted and the card will be

formatted with the FAT le system.

Messages possible Description

FSYS File system error CTYP Card type is not supported WRIT Error during writing NOCRD No card in slot LOGG Logging is possible WRITP Card is write-protected CFULL Card full RTIME Remaining logging time in days

Messages possible Description REMC Safely remove card command

-REM Card is being removed FORM Formatting SD card command

--FORM Formatting in progress LOGI Logging interval in min LLOG Linear logging

Note: Because of the increasing size of the data packets,

the remaining logging time does not decrease linearly. The data packet size can increase, e. g. with the increasing operating hours value.

93 |

SOM 9s

6.3 Overview of options and their parameters

In the following, the additional options and parameters are listed.

The options and parameters displayed depend on the

been selected. Some of the options and parameters will only be displayed, if they are available with the individual adjustments.

system as well as on the options and functions which have

Channels Channel Sub channel 1 Sub channel 2 Factory

setting

Change to Description Page

ARR Arrangement LLOGI > Loading logic

ODB > Drainback option

tDTO 60 s Time period - switch-on condition tFLL 5 min Filling time tSTB 2 min Stabilization

OBST OFF Booster function OOVRU* OFF Overrun option DTOVR 10 °R Overrun

COOL > Cooling functions

OSYC** OFF System cooling DTCO 40 °R Switch-on difference system cooling DTCF 30 °R Switch-off difference system cooling OSTC OFF Tank cooling OHDP** OFF Heat dump OTCL 230 °F Overtemperature collector OTPUM OFF Pump or valve logic

PUMP > Pump speed

PUMP1 OnOF Speed variant pump 1 n1LO 30 % Minimum speed n1HI 100 % Maximum speed PUMP2 OnOF Speed variant pump 2 n2LO 30 % Minimum speed n2HI 100 Maximum speed PUMP3 OnOF Speed variant pump 3 n3LO 30 % Minimum speed n3HI 100% Maximum speed

OTDIS > Thermal disinfection option

PDIS 01:00 Monitoring period (interval) DDIS 01:00 Heating period (duration of disinfection) TDIS 140 °F Disinfection temperature SDIS 00:00 Starting time TSDIS 3 Temperature sensor for disinfection OTDIS ON Deactivation Thermal disinfection

OPARR > Parallel relay option

PARRE 2 Parallel relay INVER OFF Inversion

OHQM > Energy metering option

FTYPE 1 Flow rate detection type FMAX 6 l/min Adjustable maximum ow rate FIMP 1 l/lmp Pulse rate MEDT 1 Antifreeze type MED% 40 Antifreeze concentration SFHQM 1 Sensor ow HQM SRHQM 4 Sensor return HQM

GFDS > Registration Grundfos sensors

VFS OFF Range of ow rate sensor RPS OFF Range of pressure sensor OFLOW OFF Flow rate monitoring option

PRS* > Pressure monitoring option

OOVPR OFF Overpressure OVPRO 5.5 bar Overpressure - switch-on value

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78 84 84 84 84 84 84 84 84 85 85 85 85 85 85 85 85 79 79 79 79 79 79 79 79 79 79 89 89 89 89 90 90 90 90 90 90 90 90 90 91 90 91 91 91 91 91 91 91 92 92 92

SOM 9s

Channels Channel Sub channel 1 Sub channel 2 Factory

setting

OVPRF 5.0 bar Overpressure - switch-off value OLEAK OFF Low pressure LEAKO 0.7 bar Low pressure - switch-on value LEAKF 1.0 bar Low pressure - switch-off value

DATE> Enter date

TIME 12:00 Time YYYY 2010 Year MM 03 Month

DD 15 Day LANG > En Language UNIT > °F Unit OSDC > SD card option CODE 0000 User code RESET OFF Factory setting

* This channel is only available if the Grundfos sensors have been registered in the GFDS channel. ** are blocked against each other

Change to Description Page

92 92 92 92 92 92 92 92 92 93 92 93

95 |

SOM 9s

7 User code and short menu -

Adjustment values

Code

The access to some adjustment values can be restricted via a user code (customer). For safety reasons, the user code should generally be set to the customer code before the controller is handed to the customer!

1. Expert 0262 (Factory setting) All menus and adjustment values are shown and all values

can be altered.

2. Customer 0000 The expert level is not shown, adjustment values can be

changed partly (see below)

Î In order to restrict the access, enter 0000 in the menu

item CODE.

The display changes to the status level. If the adjustment channel is selected afterwards, the short menu shown below will be available. The short menu suits the selected system.

Î In order to authorize the access, enter 0262 in the menu

item CODE.

Channel Factory setting Adjustment range Description

TIME 12:00 00:00 ... 23:59 Time DT O 12 °R 2.0 ... 90.0 °R Switch-on temperature difference tank DT F 8 °R 1.0 ... 89.0 °R Switch-off temperature difference tank DT S 20 °R 3.0 ... 90.0 °R Set temperature difference tank S MAX 140 °F 40 ... 200 °F Tank maximum limitation DT1O 12 °R 2.0 ... 90.0 °R Switch-on temperature difference tank 1 DT1F 8 °R 1.0 ... 89.0 °R Switch-off temperature difference tank 1 DT 1S 20 °R 3.0 ... 90.0 °R Set temperature difference tank 1 S1MAX 140 °F 40 ... 200 °F Tank maximum limitation tank 1 DT2O 12 °R 2.0 ... 90.0 °R Switch-on temperature difference tank 2 DT2F 8 °R 1.0 ... 89.0 °R Switch-off temperature difference tank 2 DT 2S 20 °R 3.0 ... 90.0 °R Set temperature difference tank 2 S2MAX 140 °F 40 ... 200 °F Tank maximum limitation tank 2 LST2 ON ON / OFF Loading tank 2 on MAN1 Auto Auto / ON / OFF / n LO / n HI Manual operation pump 1 MAN2 Auto Auto / ON / OFF / n LO / n HI Manual operation pump 2 MAN3 Auto Auto / ON / OFF / n LO / n HI Manual operation pump 3 MAN4 Auto Auto / ON / OFF Manual operation pump 4 CODE 0000 0000 / 0262 User code

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SOM 9s

8 Messages

In the case of an error, the directional pad ashes red and a

message is indicated in the status display. A warning triangle is additionally indicated. If more than one error or fault condition has occurred, only the one with the highest priority will be displayed as a message in the status display.

In the case of a sensor error, the system is switched off, and a message appears on the display marked by an “E”. Additionally, a corresponding value for the error type assumed is indicated.

After the error has been removed, the error message disappears.

Error message Value Description Solution

FS1...7 FS6, 8

EVFS 9999 Error at VFS sensor Sensor fault. Check and, if necessary, corERPS 9999 Error at RPS sensor

ELEAK Measured minimum

EPRES Measured maximum

EFLOW Error ow rate

PARAM Remote parametrization Do not parametrize the controller via the

-88.8 Short circuit at sensor 1...7 Check the cable

888.8 Broken cable at sensor 6, 8

rect the connection of the sensor plugs. If a sensor signal does not appear, the sensor has to be replaced

Leakage error Check the system for a leakage

pressure

Error pressure Check the functioning of the valves and

pressure

Threshold values for VFS 1-10: 1,0-1,1 l/min Threshold values for VFS 2-40: 2,0-2,1 l/min

pumps Check the pump

Check whether a ow rate exists

push buttons during remote parametrization

97 |

SOM 9s

9 Troubleshooting

If a malfunction occurs, a message will appear on the display of the controller.

fuse

Directional pad ashes red. The symbol is indicates on the display and the symbol

Sensor fault An error code instead of a temperature is shown on the sensor display channel.

ashes.

- 88.8888.8

Cable is broken Check the cable.

Disconnected PT1000 temperature sensors can be checked with an ohmmeter. Please check the resistance values correspond with the table.

Short circuit. Check the cable.

°F Ω °F Ω

14 961 131 1213 23 980 140 1232 32 1000 149 1252 41 1019 158 1271 50 1039 167 1290 59 1058 176 1309 68 1078 185 1328 77 1097 194 1347 86 1117 203 1366

95 1136 212 1385 104 1155 221 1404 113 1175 230 1423 122 1194 239 1442

resistance of the

Pt1000 sensors

WARNING! Electric shock!

Upon opening the housing, live parts are exposed.

Î Always disconnect the control-

ler from power supply before opening the housing!

The controller is protected by a fuse. The fuse holder (which also holds the spare fuse) becomes accessible when the cover is removed. To replace the fuse, pull the fuse holder from the bottom.

The display is permanently off.

Press button

Check the power supply of the controller. Is it disconnected?

The fuse of the controller could be blown. The fuse holder (which holds the spare fuse) becomes accessible when the cover is removed. The fuse can then be replaced.

5

. Display illuminated?

no

yes

Controller has been in standby, everything o.k.

yes

Check the supply line and reconnect it.

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SOM 9s

9.1 Miscellaneous

Pump is overheated, but no heat transfer from the collector to the tank, ow and return have the same temperature; perhaps also bubble in the lines.

Air in the system?

no yes

Are valves or non-return valves defective?

yes

Pump starts up very late.

Air the system; increase the system pressure to at least static primary pressure plus 0,5 bar; if necessary continue to increase pressure; switch the pump off and on for a short time.

Replace them

Pump starts for a short moment, switches off, switches on again, etc.

Temperature difference at the controller too small?

no yes

Wrong position of collector sensors?

no

Plausibility control of the option evacuated tube collector function, antifreeze function

The temperature diffrence between tank and collector increases enormously during operation; the collector circuit cannot dissipate the heat.

yes

Change ∆Ton and ∆Toff

correspondingly.

o.k.no

Mount the collector sensor at solar flow (warmest collector output); use immersion sleeve of the respective collector.

Switch-on temperature

difference ∆Ton to large?

no yes

Wrong position of collector sensors (e. g. atscrew sensor instead of sensor with immersion sleeve)?

no

Minimum limitation active

yes

Change ∆Ton and ∆Toff

correspondingly.

Activate evacuated tube collector function if necessary.

o.k.

Collector circuit pump / changeover valve defective?

no yes

Heat exchanger calcied?

no

Heat exchanger blocked?

Heat exchanger too small?

yes

yesno

yes

Check / replace it

Decalcify it

Clean it

Replace with correctly sized one.

99 |

SOM 9s

Tanks cool down at night.

Collector circuit pump runs in the night ?

a b

Control the non-return valve in warm water circulation - o.k.

yes no

Further pumps which are connected to the solar tank must also be checked.

no yes

Collector temperature is at night higher than the outdoor temperature.

no yes

Sufcient tank insulation?

yes no

Insulation close enough to the tank?

yes no

Are the tank connections insulated?

yes no

Warm water outow upwards?

no yes

Does the warm water circulation run for a very long time?

no yes

Circulation pump and blocking valve should be switched-off for 1 night; less tank losses?

yes no

a

Check controller

Check the non-return

valve in the ow and the

return pipe with regard to

the functional efciency.

Increase insulation.

Replace insulation or increase it.

Insulate the connections.

Change connection and let the water flow sidewards or through a siphon (downwards); less tank losses now ?

no yes

o.k.

Use the circulation pump with timer and switch-off thermostat (energy efcient circulation).

Check whether the pumps of the backup heating circuit run at night; check whether the non-return valve is defective; problem solved ?

no

The gravitation circulation in the circulation line is too strong; insert a stronger valve in the non-return valve or an electrical 2-port valve behind the circulation pump; the 2-port valve is open when the pump is activated, otherwise it is

The solar circuit pump does not work, although the collector is considerably warmer than the tank.

Display illuminated? If not, press button 5. Display illuminated now?

yes no

Does the pump start up in manual operation?

no

Is the pump current enabled by the controller?

no

yes

Clean or replace it.

closed; connect pump and 2-port valve electrically in parallel; activate the circulation again. Speed control has to be deactivated.

There is no current; check fuses / replace them and check power supply.

The adjusted temperature difference for starting the pump is too high; choose a value which makes more sense.

Is the pump stuck?

yes

Turn the pump shaft using a screwdriver; now passable?

no

Pump is defective - replace it.

Controller might be defective - replace it.

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b

STIEBEL ELTRON SOM9s User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual