Fröling Lambdatronic SP 3200 User manual

Service manual
Lambdatronic SP 3200 for dual fuel boiler
Core module version 50.04 - Build 05.18 | Touch control version 60.01 - Build 01.36
Translation of the original German installation instructions for technicians
Read and follow the instructions and safety information!
Technical changes, typographical errors and omissions reserved!
B1460720_en | Edition 30/04/2020
Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

1 General 4
1.1 About these instructions 4
1.2 Safety information 4
2 Power connection and wiring 5
2.1 Core module and connection options 5
2.1.1 Board view - core module 5
2.1.2 Mains connection 7
2.1.3 Connecting the outside temperature
sensor
7
2.1.4 FRA room temperature sensor 9
2.1.5 Boiler enable contact 9
2.1.6 Connecting a circulating pump to the core
module
10
2.1.7 Connecting an isolating valve to the core
module
12
2.1.8 Heating circuit pump 0 / burner relay 13
2.1.9 Operating signal 13
2.2 Expansion modules 14
2.2.1 Heating circuit module 14
2.2.2 Hydraulic module 15
Connecting a circulating pump to the hydraulic
module
17
Connecting an isolating valve to the hydraulic
module
20
2.2.3 Return mixer module 21
2.2.4 Pellet module 22
Common fault relay (on the pellet module)
23
2.2.5 Pellet module expansion 24
Connection instructions for pellet mole
25
2.2.6 Analogue module 26
External power demand
27
2.2.7 Digital module 27
2.3 BUS connection 29
2.3.1 Connecting the bus cable 30
2.3.2 Setting end jumpers 30
2.3.3 Setting the module address 31
2.3.4 Potential equalisation / potential
separation
32
2.4 Connection information according to
pump types
33
3 Initial start-up with settings wizards 34
3.1 Before switching on for the first time 34
3.1.1 Controller check 34
3.1.2 Check on the connected units 34
3.1.3 System check 34
3.2 General information about the settings
wizard
35
3.3 Switching on for the first time 37
3.4 Starting the setting wizard 38
4 Parameters overview 39
4.1 Heating 39
4.1.1 Heating - Status 39
4.1.2 Heating – Temperatures 40
4.1.3 Heating - Times 41
4.1.4 Heating - Service 41
4.1.5 Heating - Heating up program 42
Heating up programs
43
Configure program 8
43
Heating circuits used
44
4.1.6 Heating - General settings 44
4.2 Water 45
4.2.1 Water - Status 45
4.2.2 Water - Temperatures 45
4.2.3 Water - Times 46
4.2.4 Water - Service 46
4.3 Solar 48
4.3.1 Solar - Status 48
4.3.2 Solar - Temperatures 49
4.3.3 Solar - Times 50
4.3.4 Solar - Service 50
4.3.5 Solar - Heat meter 52
4.4 Buffer tank 54
4.4.1 Buffer tank - Status 54
4.4.2 Buffer tank - Temperatures 55
4.4.3 Buffer tank - Times 56
4.4.4 Buffer tank - Service 56
4.5 Boiler 58
4.5.1 Boiler - Status 58
4.5.2 Boiler - Temperatures 59
4.5.3 Boiler - Times 59
4.5.4 Boiler - Service 60
4.5.5 Boiler - General settings 61
Boiler - General settings - MODBUS settings 62
Boiler - General settings - Operator data
62
4.6 Boiler 2 64
4.6.1 Boiler 2 - Status 64
4.6.2 Boiler 2 - Temperatures 65
4.6.3 Boiler 2 - Service 66
4.7 Fuel 67
4.8 Feed system 68
Table of contents
2 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

4.8.1 Feed system - Selection unit probes 68
4.8.2 Feed system - Suction system 1/2/3 69
4.8.3 Feed system - Times 70
4.8.4 Feed system - Service 70
4.8.5 Feed system - Consumption 71
4.8.6 Feed system - General settings 71
4.9 Ignition 72
4.10 Network pump 73
4.10.1 Network pump - Status 73
4.10.2 Network pump - Temperatures 74
4.10.3 Network pump - Service 75
4.11 Cascade 77
4.11.1 Cascade - Status 77
4.11.2 Cascade - Backup boiler 77
4.11.3 Cascade - Temperatures 78
4.11.4 Cascade - Service 79
4.12 Difference regulator 80
4.12.1 Difference regulator - Status 80
4.12.2 Difference regulator - Temperatures 80
4.12.3 Difference regulator - Times 81
4.12.4 Difference regulator - Service 81
4.13 Circulation pump 82
4.13.1 Circulation pump - Status 82
4.13.2 Circulation pump - Temperatures 82
4.13.3 Circulation pump - Times 83
4.13.4 Circulation pump - Service 83
4.14 Manual 84
4.14.1 Manual - Manual operation 84
4.14.2 Manual - Digital outputs 85
4.14.3 Manual - Analogue outputs 85
4.14.4 Manual - Digital inputs 86
4.15 System 87
4.15.1 System - Settings 87
Setting - Boiler temperature
87
Setting - Flue gas
88
Setting - Ignition
90
Setting - Air settings
91
Setting - Pellet feed
92
Setting - WOS
93
Setting - Fuel outfeeder
94
Setting - Lambda values 96
Set - Lambda probe
97
Setting - General settings 99
4.15.2 System - Current values 101
Operation hours
102
4.15.3 System - Sensors and pumps 102
4.15.4 System - System selection 102
4.16 Diagnostics 103
4.16.1 Diagnosis – Current fault list 103
4.16.2 Diagnosis – Clear pending error 103
4.16.3 Diagnostics - Error history 103
4.16.4 Diagnostics - Clear error history 103
4.17 Touchscreen 105
4.17.1 Touchscreen - Display settings 105
Display settings - General
105
Display settings - Basic display
106
Display settings - Date / Time
106
Display settings - Software update / Service
106
4.17.2 Touchscreen - Display operating rights 107
Froling Connect 108
4.17.3 Touchscreen - Display allocation 108
5 FAQ 109
5.1 PDM / 0 - 10V settings 109
5.2 Boiler operating statuses 110
5.3 Boiler modes 111
5.3.1 "Automatic” mode without storage tank 111
5.3.2 “Automatic” mode with storage tank 112
5.3.3 “Continuous load” mode without storage
tank
113
5.3.4 “Continuous load” mode with storage
tank
113
5.3.5 “Domestic hot water” mode without
storage tank
113
5.3.6 “Domestic hot water” mode with storage
tank
115
5.4 Setting times 116
5.5 Calibrating the touchscreen 118
5.6 Software update Lambdatronic 3200 120
5.6.1 Carrying out a software update on the
boiler controller
121
5.6.2 Carrying out a software update on the
touch control
123
5.6.3 Finishing a software update 124
5.7 USB data recording 125
6 Notes 127
7 Appendix 129
7.1 Addresses 129
7.1.1 Address of manufacturer 129
Customer service
129
7.1.2 Address of the installer 129
Table of contents
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 3

1 General
1.1 About these instructions
Please read and follow the operating instructions, in particular the safety information contained therein. Keep
them available next to the boiler.
These operating instructions include important information about operation, electrical connection and
troubleshooting. The parameters shown depend on the set boiler type and the system configuration!
The constant further development of our products means that there may be minor differences from the pictures
and content. If you discover any errors, please let us know: [email protected].
1.2 Safety information
DANGER
When working on electrical components:
Risk of electrocution!
When work is carried out on electrical components:
❒ Always have work carried out by a qualified electrician
❒ Observe the applicable standards and regulations
➥Work must not be carried out on electrical components by unauthorised persons
WARNING
When touching hot surfaces:
Severe burns are possible on hot surfaces and the flue gas pipe!
When work is carried out on the boiler:
❒ Shut down the boiler according to procedure (“ Off” operating status) and allow it to cool
down
❒ Protective gloves must usually be worn for work on the boiler, and it should only be
operated using the handles provided
❒ Insulate the flue gas pipes and do not touch them during operation
The information on safety, standards and guidelines in the assembly and operating instructions for the boiler
should also be observed!
1General
About these instructions
4 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

2 Power connection and wiring
2.1 Core module and connection options
2.1.1 Board view - core module
6,3 AT
sw +
gr -
IN
+24V
grün-gelb
rot +
blau -
ws 13VDC
NZ
COM
PZ
S
HE-
HE+
ZU
AUF
P2
5V/P3
ZU
AUF
P2
5V/P3
ws 13VDC
KM-35
(Betriebssignal)
KM-02
(Bus)
KM-01
(Bus)
KM-04
(COM 2)
KM-06
(Breitbandsonde)
KM-09
(Verriegelung)
KM-10
(STB)
KM-11
(NOT-HALT)
KM-07
(siehe Tabelle ...)
KM-08
(siehe Tabelle ...)
KM-05
(COM 1)
KM-03
(Bus)
KM-36
(Optionsmodul) L N
PEPEPE
KM-34
(Heizkreispumpe 0
oder Brennerrelais)
KM-33
(Heizkreispumpe 1)
KM-32
(Heizkreispumpe 2)
KM-31
(Mischer 1)
KM-30
(Mischer 2)
KM-29
(Netz)
KM-28
(Pumpe 1)
KM-27
(Saugzug)
FRKEM29
L1
N
N
L
N
L
N
L
N
LV
LV
L
Sig
+5V
N
L
N
AUF
ZU
N
AUF
ZU
KM-26 (PWM / 0-10V Pumpe 1) KM-25 (Kesselfühler) KM-24 (Rücklauffühler) KM-23 (Vorlauffühler 1) KM-22 (Vorlauffühler 2) KM-21 (Raumfühler 1) KM-20 (Raumfühler 2) KM-19 (Außenfühler) KM-18 (Fühler 1) KM-17 (Fühler 2) KM-16 (Türkontaktschalter)
KM-15
(Abgasfühler)
KM-14
(Kesselfreigabe)
KM-13
(Lambdasonde)
KM-12 (Durchflussmesser)
End jumper
Mains fuse
Core module
Connection / Name Note
KM-01 BUS Connection with cable – LIYCY paired 2x2x0.5;
⇨ See "Connecting the bus cable" [page 30]
Caution! CAN L and CAN H must not be connected to +UBUS!
KM-02 BUS Patch cable CAT 5 RJ45 SFTP 1:1 configuration; pellet module
connection
KM-03
KM-04 COM 2 Null modem cable 9-pin SUB-D;
Connection is used e.g. as MODBUS interface
Power connection and wiring 2
Core module and connection options
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 5

Connection / Name Note
KM-05 COM 1 Null modem cable 9-pin SUB-D;
Service interface for software update and connection to visualisation
software
KM-06 Broadband probe Connection cable1) 5 x 0.75 mm2
Connection of a Bosch (item number 69001A) or NTK (item number
69003) broadband Lambda probe
KM-07 Secondary air SP Dual Connection cable1) 5 x 0.75 mm2
Air flap SP Dual
compact
Connection cable1) 5 x 0.75mm2;
Combined air damper for primary and secondary air
KM-08 Primary air SP Dual Connection cable1) 5 x 0.75 mm2;
Combi drive SP Dual
compact
Connection cable1) 5 x 0.75 mm2;
KM-09 Lock Connection cable1) 2 x 0.75 mm2
KM-10 High-limit thermostat
KM-11 EMERGENCY STOP Caution! Do not connect the emergency stop/shutdown switch to the
boiler power supply line. The switch must be a N/C switch and it
must be linked to the 24V safety chain of the STL at this terminal.
KM-12 Flowmeter Connection cable1) 2 x 0.75 mm2
KM-13 Lambda probe Connection cable1) 4 x 0.75 mm²
Connection of a Bosch switching-type sensor (type LSM11) or NTK
switching-type sensor (type OZA685, item number: 69400)
KM-14 Boiler release Connection cable1) 2 x 0.75 mm2
Caution! The connection must be a floating connection.
⇨ See "Boiler enable contact" [page 9]
KM-15 Flue gas temperature sensor Only use connection cable of the component
KM-16 Door switch Connection cable1) 2 x 0.75 mm2
KM-17 Sensor 2 Connection cable1) 2 x 0.75 mm2
KM-18 Sensor 1 Connection cable1) 2 x 0.75 mm2, sensor 1 in the STL housing
KM-19 Outside temperature sensor Connection cable1) 2 x 0.75 mm2, shielded from 25 m cable length
KM-20 Room temperature sensor heating circuit
2
KM-21 Room temperature sensor heating circuit
1
KM-22 Flow temperature sensor heating circuit
2
KM-23 Flow temperature sensor heating circuit
1
KM-24 Return feed sensor Connection cable1) 2 x 0.75 mm2
KM-25 Boiler sensor
KM-26 PWM / 0-10V pump 1
KM-27 Induced draught fan Connection cable1) 3 x 1.5 mm2 for power supply, Connection
cable1) 3 x 0.75 mm2 for analysis of current speed
KM-28 Pump 1 Connection cable1) 3 x 1.5 mm2, max. 1.5A / 280W / 230V
KM-29 Mains connection Connection cable1) 3 x 1.5 mm2, fuse provided by customer: C16A
KM-30 Mixing valve heating circuit 2 Connection cable1) 4 x 0.75 mm2, max. 0.15A / 230V
2Power connection and wiring
Core module and connection options
6 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

Connection / Name Note
KM-31 Mixing valve heating circuit 1
KM-32 Heating circuit pump 2 Connection cable1) 3 x 1.5 mm2, max. 2.5A / 500W
KM-33 Heating circuit pump 1
KM-34 Heating circuit pump 0
or burner relay
Connection cable1) 3 x 1.5 mm2, max. 3A / 600VA
KM-35 Operating signal Connection cable1) 2 x 0.75 mm2
⇨ See "Operating signal" [page 13]
KM-36 Optional module
1.YMM as per ÖVE-K41-5 or H05VV-F as per DIN VDE 0881-5
2.1.2 Mains connection
Connect the power supply at the "Mains connection" plug
❒ Flexible sheathed cable must be used for the wiring; this must be of the correct size to comply with
applicable regional standards and regulations.
Boiler type Electric fuses Fuse type
S1 Turbo 16A C16A
S1 Turbo F 16A C16A
S3 Turbo 13A C13A
S4 Turbo 16A C16A
S4 Turbo F 16A C16A
2.1.3 Connecting the outside temperature sensor
The outside temperature sensor is included with the materials supplied for the boiler and is usually mounted on
an outer wall that is not directly exposed to the sun. It continuously measures the ambient temperature and
forms part of the weather-compensated heating circuit control.
KM-19 / Außenfühler
Power connection and wiring 2
Core module and connection options
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 7

In the delivered state, the outside temperature sensor is read in by the core module ("KM-19 / outside
temperature sensor" connection). Alternatively, the outside temperature sensor can be connected to an
additional heating circuit module.
⇨ See "Heating circuit module" [page 14]
2Power connection and wiring
Core module and connection options
8 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

2.1.4 FRA room temperature sensor
In addition to recording the current room temperature, the Fröling FRA room temperature sensor also has a
handwheel to adjust the required room temperature and a slide switch to set the mode for the heating circuit.
AUS
UHR
NACHT
TAG
FV
RFFV
COM
Raumfühler FRA
RF 1/2
Kernmodul S/P/H 3200
AUS
UHR
NACHT
TAG
FV
RFFV
COM
Raumfühler FRA
RF 1/2
Kernmodul S/P/H 3200
affecting room: not affecting room:
Possible positions of the mode switch:
Boiler off Heating circuit deactivated, only frost protection!
Automatic mode Heating and setback phases according to the set times
Setback mode Ignores the heating phases and continuously controls the
room temperature to the temperature set in setback mode
Party switch Ignores the setback phases and continuously controls the
room temperature to the temperature set in heating mode
Handwheel… Allows you to adjust the temperature by +/- 3°C
IMPORTANT! Refer to the supplied assembly instructions for more detailed explanations on connecting and
operating the FRA room temperature sensor.
2.1.5 Boiler enable contact
When commissioning the boiler using the settings wizard, the boiler release contact function (“How is the
boiler release contact on the core module being used?”) is called up to enable the optional
analysis of an external floating release or start contact. The following functions are possible depending on the
setting and electrical connection:
Connection position Setting Description
6,3 AT
sw +
gr -
IN
+24V
grün-gelb
rot +
blau -
ws 13VDC
NZ
COM
PZ
S
HE-
HE+
ZU
AUF
P2
5V/P3
ZU
AUF
P2
5V/P3
ws 13VDC
KM-35
(Betriebssignal)
KM-02
(Bus)
KM-01
(Bus)
KM-04
(COM 2)
KM-06
(Breitbandsonde)
KM-09
(Verriegelung)
KM-10
(STB)
KM-11
(NOT-HALT)
KM-07
(siehe Tabelle ...)
KM-08
(siehe Tabelle ...)
KM-05
(COM 1)
KM-03
(Bus)
KM-36
(Optionsmodul) L N
PEPEPE
KM-34
(Heizkreispumpe 0
oder Brennerrelais)
KM-33
(Heizkreispumpe 1)
KM-32
(Heizkreispumpe 2)
KM-31
(Mischer 1)
KM-30
(Mischer 2)
KM-29
(Netz)
KM-28
(Pumpe 1)
KM-27
(Saugzug)
FRKEM29
L1
N
N
L
N
L
N
L
N
LV
LV
L
Sig
+5V
N
L
N
AUF
ZU
N
AUF
ZU
KM-26 (PWM / 0-10V Pumpe 1) KM-25 (Kesselfühler) KM-24 (Rücklauffühler) KM-23 (Vorlauffühler 1) KM-22 (Vorlauffühler 2) KM-21 (Raumfühler 1) KM-20 (Raumfühler 2) KM-19 (Außenfühler) KM-18 (Fühler 1) KM-17 (Fühler 2) KM-16 (Türkontaktschalter)
KM-15
(Abgasfühler)
KM-14
(Kesselfreigabe)
KM-13
(Lambdasonde)
KM-12 (Durchflussmesser)
not in use No effect on boiler operation (contact must not be clamped/bridged)
Release/disable boiler As long as the boiler release contact is closed, the boiler controller
operates according to the specified parameters (mode, time
window, etc.). If the boiler release contact is opened, the boiler is
no longer released and follows the shutdown procedure. As long as
the boiler release contact is open, heating requirements are
ignored. (e.g. flue gas thermostat of a supply boiler, house
distribution box)
Extra heating As long as the boiler release contact is open, the boiler controller
operates according to the specified parameters. If the boiler release
contact is closed, the boiler starts in continuous load operation (e.g.
heat requirements of a heating fan)
Power connection and wiring 2
Core module and connection options
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 9

2.1.6 Connecting a circulating pump to the core module
Different types of wiring must be implemented depending on the type of pump:
High efficiency pump with control line (PWM / 0-10V)
On high efficiency pumps with an additional wired control line, the speed control is implemented via the
additional connection for the PWM or 0-10V signal.
FRKEM29
Pumpe 1
N
PE
L
LV
N
Netz
PE
L
AO-P1
PWM
0-10V
❒ Connect the power supply for the high efficiency pump to output “Pump 1” of the core module
❒ Connect the PWM cable of the high efficiency pump to the corresponding “PWM / 0-10V” port
➥Make sure that the cables are configured correctly (polarity) in accordance with the connection diagram
of the pump!
❒ Set control of the pump in the relevant menu to “Field pump / PWM” or “Field pump / 0-10V”
2Power connection and wiring
Core module and connection options
10 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

High efficiency pump without control signal
It is possible to control the speed when using this type of pump. The use of a line regulating valve (e.g.: Setter
balancing valve) is recommended.
FRKEM29
Pumpe 1
N
PE
L
LV
N
Netz
PE
L
AO-P1
22 12
24 14
21 11
A2 A1
❒ Connect pump with relay and RC element isolated from the output
❒ In the relevant menu, set the pump control to “HE pump without control signal”
AC pump without control signal (pulse package control)
On older pumps without a control signal that are not highly efficient, the speed control is implemented via a
pulse package control. Please note that the minimum speed may need to be adjusted on some pumps (default
setting: 30%).
FRKEM29
Pumpe 1
N
PE
L
LV
N
Netz
PE
L
AO-P1
❒ Connect pump to output “Pump 1” of the core module
❒ In the relevant menu, set the pump control to “Pump without control signal”
Power connection and wiring 2
Core module and connection options
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 11

2.1.7 Connecting an isolating valve to the core module
If an isolating valve is connected to the speed-controlled pump outlet, an RC element must be used.
FRKEM29
Pumpe 1
N
PE
L
LV
N
Netz
PE
L
AO-P1
HKP0
N
PE
L1
❒ Phase (L) for switching the valve and connecting neutral conductor (N) to output “Pump 1” with the RC
element
❒ Phase (L) for continuous supply (switches the valve back to the initial position) at output “HCP0” – connect
terminal “L1”
2Power connection and wiring
Core module and connection options
12 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

2.1.8 Heating circuit pump 0 / burner relay
Depending on the system setting, the connection “Heating circuit pump 0” can be used for heating circuit pump
0 or as a burner relay. The following connection instructions must be observed:
Heating circuit pump 0 Burner relay
HKP 0
N
PE
L1
The pump can be supplied with up to a
max. 2 Ampere directly via the output.
During this process, phase (L1) of the
output is connected with the switch
contact
HKP 0
N
PE
L1
L NPE
The pump must be supplied externally
with 2 Ampere. Up to max. 5 Ampere,
the floating contact can used to switch
the phase. At above 5 Ampere, the
pump must be isolated with a relay.
HKP 0
N
PE
L1
Wire the floating output contact as an
enabling signal to control the standby
boiler.
2.1.9 Operating signal
On the core module (connection position KM-35) it is possible to issue a floating operating signal. The status is
displayed under the “
Standby relay ” output in the “Manual” -> “Digital outputs” menu.
⇨ See "Manual - Digital outputs" [page 85]
Operating status Relay status
Boiler off, standby, fault 0
All other operating statuses (e.g. preparation, heating up, pre-heating, ignition, heating, slumber,
cleaning, shutdown wait 1, shutdown wait 2, etc.)
1
Power connection and wiring 2
Core module and connection options
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 13

2.2 Expansion modules
2.2.1 Heating circuit module
Two heating circuits can be controlled as standard with the core module.
To add further heating circuits, the heating circuit module boards must be expanded. Expansion can include up
to eight heating circuit modules (address 0 to 7). A total of up to 18 heating circuits can be controlled, although
the module address must be set correctly.
⇨ See "Setting the module address" [page 31]
N
N
L
L
HE-09
(Heizkreispumpe 1)
HE-08
(Netz)
HE-01
HE-02
(2x Bus)
HE-03
(Vorlauffühler 1)
HE-04
(Vorlauffühler 2)
HE-05
(Raumfühler 1)
HE-06
(Raumfühler 2)
HE-07
(Fühler 1)
HE-10
(Heizkreispumpe 2)
HE-11
(Mischer 1)
HE-12
(Mischer 2)
N
L
N
ZU
AUF
N
ZU
AUF
FRHEM19
Heating circuit module
Module address
End jumper
Mains fuse
Connection / Name Note
HE-01 BUS Connection with cable – LIYCY paired 2x2x0.5;
⇨ See "Connecting the bus cable" [page 30]
Caution! CAN L and CAN H must not be connected to +UBUS!
HE-02 BUS
HE-03 Flow temperature sensor 1 Connection cable1) 2 x 0.75 mm2;
HE-04 Flow temperature sensor 2
HE-05 Room temperature sensor 1 Connection cable1) 2 x 0.75 mm2, shielded from 25 m cable length
HE-06 Room temperature sensor 2
HE-07 Sensor 1 Connection cable1) 2 x 0.75 mm2;
Connection of the outside temperature sensor if this should not be connected to
the core module. The address of the heating circuit module to which the outside
temperature sensor is connected must be set in the “
Heating - General settings ”
menu.
HE-08 Mains Connection cable1) 3 x 1.5 mm2, fuse 10A
HE-09 Heating circuit pump 1 Connection cable1) 3 x 1.5 mm2, max. 2.5A / 230V / 500W
HE-10 Heating circuit pump 2
HE-11 Mixing valve 1 Connection cable1) 4 x 0.75 mm2, max. 0.15A / 230V
HE-12 Mixing valve 2
1.YMM as per ÖVE-K41-5 or H05VV-F as per DIN VDE 0881-5
2Power connection and wiring
Expansion modules
14 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

2.2.2 Hydraulic module
The hydraulic module makes the connections of sensors and pumps available for the hydraulic components of
the system (storage tank, DHW tank, etc.).
A hydraulic module is included in the delivery as standard (address 0). A further seven modules (addresses 1 to
7) can be retrofitted.
You must ensure that the module address is assigned correctly.
⇨ See "Setting the module address" [page 31]
Hydraulic module – Version FRHYU21
FRHYU21
N
N
L
L
HY-14
(Pumpe _.1)
HY-13
(Netz)
HY-05
(AO-P1)
HY-07
(Fühler _.1)
HY-08
(Fühler _.2)
HY-09
(Fühler _.3)
HY-10
(Fühler _.4)
HY-11
(Fühler _.5)
HY-12
(Fühler _.6)
HY-06
(AO-P2)
HY-15
(Pumpe _.2)
N
L
HY-03 / HY-04
(Bus)
HY-01
HY-02
(Bus)
Hydraulic module
Mains fuse
Module address
End jumper
Connection / Name Note
HY-01 BUS Patch cable CAT 5 RJ45 SFTP 1:1 configuration;
HY-02 BUS
HY-02 BUS Connection with cable – LIYCY paired 2x2x0.5;
⇨ See "Connecting the bus cable" [page 30]
Caution! CAN L and CAN H must not be connected to +UBUS!
HY-04 BUS
HY-05 AO-P1 Connection cable1) 2 x 0.75 mm2
Connection of the control signal (PWM or 0-10V) of the relevant pump (AO-P1 =
pump 1 of the board)
HY-06 AO-P2
HY-07
:
HY-12
Sensor _.1
:
Sensor _.6
Connection cable1) 2 x 0.75 mm2, shielded from 25 m cable length
Sensor inputs on the board. The correct sensor designation is determined by the
set module address (0-7).
Example: Module address “2” = sensor 2.1 to sensor 2.6
HY-13 Mains Connection cable1) 3 x 1.5 mm2, fuse 10A
HY-14 Pump _.1 Connection cable1) 3 x 1.5 mm2, max. 1.5A / 230V / 280W
Pump outputs on board. The correct pump designation is determined by the set
module address (0-7).
Example: Module address “2” = Pump 2.1 and pump 2.2
HY-15 Pump _.2
1.YMM as per ÖVE-K41-5 or H05VV-F as per DIN VDE 0881-5
Power connection and wiring 2
Expansion modules
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 15

Hydraulic module – Version FRHYU22
FRHYU22
N
N
L
L
HY-14
(Pumpe _.1)
HY-13
(Netz)
HY-03 / HY-04
(Bus)
HY-05
(AO-P1)
HY-07
(Fühler _.1)
HY-08
(Fühler _.2)
HY-09
(Fühler _.3)
HY-10
(Fühler _.4)
HY-11
(Fühler _.5)
HY-06
(AO-P2)
HY-12
(Fühler _.6)
HY-01
HY-02
(Bus)
HY-15
(Pumpe _.2)
L
N
L L
Hydraulic module
Mains fuse
Module address
End jumper
Connection / Name Note
HY-01 BUS Patch cable CAT 5 RJ45 SFTP 1:1 configuration;
HY-02 BUS
HY-03 BUS Connection with cable – LIYCY paired 2x2x0.5;
⇨ See "Connecting the bus cable" [page 30]
Caution! CAN L and CAN H must not be connected to +UBUS!
HY-04 BUS
HY-05 AO-P1 Connection cable1) 2 x 0.75 mm2
Connection of control signal for relevant pump
HY-06 AO-P2
HY-07
:
HY-12
Sensor _.1
:
Sensor _.6
Connection cable1) 2 x 0.75 mm2, shielded from 25 m cable length
Sensor inputs on the board. The correct sensor designation is determined by the
set module address (0-7).
Example: Module address “2” = sensor 2.1 to sensor 2.6
HY-13 Mains Connection cable1) 3 x 1.5 mm2, fuse 10A
HY-14 Pump _.1 Connection cable1) 3 x 1.5 mm2, max. 1.5A / 230V / 280W
Pump outputs on board. The correct pump designation is determined by the set
module address (0-7).
Example: Module address “2” = Pump 2.1 and pump 2.2
Depending on the type of pump, the phase (L) is either connected to the relay
output or triac output.
⇨ See "Connecting a circulating pump to the hydraulic module" [page 17]
HY-15 Pump _.2
1.YMM as per ÖVE-K41-5 or H05VV-F as per DIN VDE 0881-5
2Power connection and wiring
Expansion modules
16 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

Connecting a circulating pump to the hydraulic module
CAUTION! As of module version FRHYU22, one relay output each is available at the pump outputs in addition
to the triac output. Observe the following connection diagrams to correctly implement the wiring of the circulating
pump.
High efficiency pump with control line (PWM / 0-10V)
On high efficiency pumps with an additional wired control line, the speed control is implemented via the
additional connection for the PWM or 0-10V signal.
up to hydraulic module – Version FRHYU21 up to hydraulic module – Version FRHYU22
FRHYU21
N
Pumpe 1Netz
PE L N PE L
AO-P1
PWM
0-10V
FRHYU22
PWM
0-10V
N
AO-P1
Pumpe 1Netz
PE L N PE L L
❒Hydraulic module FRHYU21: Connect the power supply for the high efficiency pump to “Pump 1” or “Pump
2” output
❒Hydraulic module FRHYU22: Connect the power supply for the high efficiency pump to output “Pump 1” or
“Pump 2” and use the relay output for phase (L)
❒ Connect the PWM cable of the high efficiency pump to the corresponding port “AO-P1” or “AO-P2”
➥Make sure that the cables are configured correctly (polarity) in accordance with the connection diagram
of the pump!
❒ Set control of the pump in the relevant menu to “Field pump / PWM” or “Field pump / 0-10V”
Power connection and wiring 2
Expansion modules
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 17

High efficiency pump without control signal
It is possible to control the speed when using this type of pump. The use of a line regulating valve (e.g.: Setter
balancing valve) is recommended.
up to hydraulic module – Version FRHYU21 up to hydraulic module – Version FRHYU22
FRHYU21
22 12
24 14
21 11
A2 A1
N
Pumpe 1
Netz
PE L N PE L
FRHYU22
N
Pumpe 1
Netz
PE L N PE L L
❒Hydraulic module FRHYU21: Connect pump with relay and RC element isolated from the output
❒Hydraulic module FRHYU22: Connect the power supply for the high efficiency pump to output “Pump 1” or
“Pump 2” and use the relay output for phase (L)
❒ In the relevant menu, set the pump to “HE pump without control signal”
AC pump without control signal (pulse package control)
On older pumps without a control signal that are not highly efficient, the speed control is implemented via a
pulse package control. Please note that the minimum speed may need to be adjusted on some pumps (default
setting: 30%).
up to hydraulic module – Version FRHYU21 up to hydraulic module – Version FRHYU22
FRHYU21
N
Pumpe 1Netz
PE L N PE L
FRHYU22
N
Pumpe 1Netz
PE L N PE L L
❒Hydraulic module FRHYU21: Connect the power supply for the pump to output “Pump 1” or “Pump 2”
❒Hydraulic module FRHYU22: Connect the power supply for the pump to output “Pump 1” or “Pump 2” and
use the triac output for phase (L)
❒ In the relevant menu, set the pump to “Pump without control signal”
2Power connection and wiring
Expansion modules
18 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

High efficiency pump with control signal and release contact
When using a high efficiency pump that require a release contact in addition to the control signal (e.g. Grundfos
Magna 3), the pump outlet of the hydraulic module is used to switch the release.
up to hydraulic module – Version FRHYU21
FRHYU21
N
Pumpe 1Netz
PE L N PE L
AO-P1
L N
L
N
PE
22 12
24 14
21 11
A2 A1
230 VAC power supply
❒Hydraulic module FRHYU21: Connect the relay to output “Pump 1” or “Pump 2” and RC element isolated
from the output
up to hydraulic module – Version FRHYU22
FRHYU22
N
AO-P1
Pumpe 1Netz
PE L N PE L L
L N
L
N
PE
22 12
24 14
21 11
A2 A1
230 VAC power supply
❒Hydraulic module FRHYU22: Connect the pump relay to output “Pump 1” or “Pump 2” and use the relay
output for phase (L)
❒ Install and connect two-pole cable (2 x 0.75 mm2) from connection “AO-P1” or “AO-P2” to the pump and
connect terminal “+” with terminal “IN” of the pump
❒ Install and connect two-pole cable (2 x 0.75 mm2) from NOC on the relay to the pump using terminal “S/S”
as the release contact
❒ Connect power supply at pump connector
❒ In relevant menu, set pump to “Field pump PWM + valve” or “Field pump 0-10V + valve”
Power connection and wiring 2
Expansion modules
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en 19

Connecting an isolating valve to the hydraulic module
CAUTION! As of module version FRHYU22, one relay output each is available at the pump outputs in addition
to the triac output. Observe the following connection diagrams for the correct wiring.
up to hydraulic module – Version FRHYU21 up to hydraulic module – Version FRHYU22
FRHYU21
N
Pumpe 1Netz
PE L N PE L
FRHYU22
N
Pumpe 1
Netz
PE L N PE L L
❒Hydraulic module FRHYU21: Phase (L) for switching the valve and connecting neutral conductor (N) to
output “Pump 1” or “Pump 2” with the RC element
❒Hydraulic module FRHYU22: Phase (L) for switching the valve and connecting neutral conductor (N) to
output “Pump 1” or “Pump 2” using the relay output for phase (L)
❒ Connect the phase (L) for continuous supply (switches the valve back to the initial position) to the power
supply at terminal “L”
2Power connection and wiring
Expansion modules
20 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com