PAW FC3.10 Owner's manual

PAW GmbH & Co. KG
Böcklerstr. 11, 31789 Hameln - Germany
Phone: [phone], Fax: [phone]
E-mail: [email protected], Web: www.paw.eu
2021/03 99E13331xx-mub-en - V07 1
Installation and Operation Instructions
Controller FC3.10
for DHW modules

1General Information
2 99E13331xx-mub-en - V07 2021/03
Item no. 99E13331xx-mub-en - Version V07 - Issued 2021/03
Translation of the original instructions
We reserve the right to make technical changes without notice!
Printed in Germany – Copyright by PAW GmbH & Co. KG
PAW GmbH & Co.KG
Böcklerstraße 11
31789 Hameln - Germany

1General Information
2021/03 99E13331xx-mub-en - V07 3
Contents
1General Information.........................................................................................................7
1.1 Scope of these instructions ..........................................................................................7
1.2 Designated use ............................................................................................................ 7
1.3 Target group ................................................................................................................ 7
2Safety instructions ...........................................................................................................8
3Mounting and installation [specialist] ................................................................................9
3.1 Installation of the controller........................................................................................... 9
3.2 Establishing the electrical connections ....................................................................... 11
4Product description and operation ..................................................................................13
4.1 View of the controller.................................................................................................. 13
4.2 Operating buttons / key combination .......................................................................... 13
4.3 Display ....................................................................................................................... 14
4.4 Symbols ..................................................................................................................... 14
5Commissioning [specialist].............................................................................................15
5.1 Language ................................................................................................................... 15
5.2 Controller mode.......................................................................................................... 15
5.3 Date ........................................................................................................................... 15
5.4 Time........................................................................................................................... 16
5.5 Automatic daylight saving time / standard time........................................................... 16
5.6 Scan Modbus ............................................................................................................. 16
5.7 Nominal temperature.................................................................................................. 16
5.8 Functions ................................................................................................................... 16
5.9 Finish with protocol .................................................................................................... 17
5.10 Finish without protocol................................................................................................ 17
6Menu settings................................................................................................................18
7Status ...........................................................................................................................21
7.1 Measured values........................................................................................................ 21

1General Information
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7.2 Messages...................................................................................................................22
7.3 Service....................................................................................................................... 22
7.4 Controller ................................................................................................................... 22
8Hot water ......................................................................................................................23
9Functions ......................................................................................................................23
10 General settings ............................................................................................................24
10.1 Language ................................................................................................................... 24
10.2 Date ........................................................................................................................... 24
10.3 Time........................................................................................................................... 24
10.4 Synchronise date/time................................................................................................ 25
10.5 Auto daylight saving time ........................................................................................... 25
10.6 Commissioning* ......................................................................................................... 25
10.7 Software update ......................................................................................................... 25
10.8 Display ....................................................................................................................... 25
11 Internet module .............................................................................................................26
11.1 Registration................................................................................................................ 26
11.2 Set up the network ..................................................................................................... 26
11.3 Information ................................................................................................................. 26
12 USB..............................................................................................................................27
12.1 Eject memory ............................................................................................................. 27
12.2 Load settings.............................................................................................................. 27
12.3 Save settings.............................................................................................................. 27
12.4 Save alarms history.................................................................................................... 27
12.5 Save parameters history ............................................................................................ 27
12.6 Data logging interval................................................................................................... 28
12.7 Recording type ........................................................................................................... 28
12.8 Format drive............................................................................................................... 28
12.9 Properties................................................................................................................... 28
13 Auto / manual mode ......................................................................................................29

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14 User code .....................................................................................................................30
15 Advanced settings .........................................................................................................30
15.1 Min speed* ................................................................................................................. 30
16 Description of function ...................................................................................................31
16.1 Circulation .................................................................................................................. 31
16.2 Stratification (stratification of return) ........................................................................... 35
16.3 Modulating hot water temperature.............................................................................. 36
16.4 Comfort function......................................................................................................... 37
16.5 Disinfection ................................................................................................................ 38
16.6 Alarm relay................................................................................................................. 39
16.7 Parallel relay .............................................................................................................. 40
16.8 Hygienic flush/protection against blocking .................................................................. 41
16.9 Buffer storage* ........................................................................................................... 41
16.10 Reheating* ................................................................................................................. 42
17 Installation of the cascade controller...............................................................................42
17.1 Installation.................................................................................................................. 43
17.2 Initial commissioning of the cascade controller........................................................... 47
17.3 Extension of a single controller to a cascade network ................................................ 48
18 Menu settings cascade ..................................................................................................49
19 Submenu Cascade at the client......................................................................................50
19.1 Cascade switchover points......................................................................................... 50
19.2 Switchover point ON* ................................................................................................. 50
19.3 Switchover point OFF* ............................................................................................... 50
19.4 Switchover delay*....................................................................................................... 51
19.5 Duration of standby module* ...................................................................................... 51
19.6 Synchronise*.............................................................................................................. 51
19.7 Debug*....................................................................................................................... 51
19.8 Information*................................................................................................................ 51
20 Submenus at the server.................................................................................................52

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20.1 Status......................................................................................................................... 52
20.2 General settings ......................................................................................................... 53
20.3 USB ........................................................................................................................... 53
20.4 Automatic / manual mode........................................................................................... 53
20.5 Advanced settings* .................................................................................................... 53
21 Functions in the cascade network ..................................................................................53
21.1 Circulation .................................................................................................................. 54
21.2 Stratification of return ................................................................................................. 55
21.3 Comfort function......................................................................................................... 55
21.4 Thermal disinfection ................................................................................................... 55
21.5 Alarm relay................................................................................................................. 56
21.6 Parallel relay .............................................................................................................. 56
21.7 Hygienic flush / protection against blocking ................................................................ 56
21.8 Buffer tank.................................................................................................................. 56
21.9 Reheating...................................................................................................................56
22 Technical data...............................................................................................................57
23 Error correction .............................................................................................................58
23.1 Error messages.......................................................................................................... 58
23.2 Troubleshooting ......................................................................................................... 60
23.3 Checking the VFS 2-40 flow sensor ........................................................................... 63
23.4 Checking the FlowSonic flow sensor .......................................................................... 64
24 Disposal........................................................................................................................66
25 Exclusion of liability .......................................................................................................66
26 Legal guarantee ............................................................................................................67

1General Information
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1General Information
1.1 Scope of these instructions
These instructions describe the function, installation and commissioning of the DHW controller
FC3.10. The chapters called [specialist] are intended for specialists only.
For further components external of the module, such as valves, please follow the instructions of
the respective manufacturer.
1.2 Designated use
The domestic hot water controller, subsequently referred to as the controller , is an
independently installed electronic temperature controller for on-surface installation. The
maintenance-free controller is exclusively intended for the controlling and monitoring of a PAW
domestic hot water module. Improper usage of the controller excludes any liability claims.
Only use PAW accessories with the controller.
The packaging materials are made of recyclable materials and can be disposed of with
recyclable materials.
This product complies with the relevant directives and is therefore labelled with the CE mark.
The Declaration of Conformity is available upon request, please contact the manufacturer.
1.3 Target group
The target audience of this manual are technical professionals who:
•have the knowledge of terminology and the skills necessary for setting up and
operating domestic hot water modules.
•have the necessary professional training, knowledge and experience as well
as the knowledge of the relevant regulations, in order to evaluate the following
work and to detect potential dangers:
– Installation of electrical devices
– Assembly and connection of data lines
– Assembly and connection of power supply lines.
Carefully read these instructions before installation and commissioning. Save
these instructions in the vicinity of the installation for future reference.

2Safety instructions
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2Safety instructions
The installation and commissioning as well as the connection of electrical components require
technical knowledge commensurate with a recognised vocational qualification as a fitter for
plumbing, heating and air conditioning technology, or a profession requiring a comparable level
of knowledge [specialist].
The following must be observed during installation and commissioning:
•relevant local and national regulations
•accident prevention regulations of the professional association
•instructions and safety instructions mentioned in these instructions
CAUTION
Personal injury and damage to property!
The controller must only be used in domestic hot water modules.
The domestic hot water module can be damaged by improper operation of
the device. The device must not be connected to the power supply if:
the body is open or damaged.
cables are damaged.
This document is part of the product. Install and use the device only after having read
and understood this document. Please observe all safety instructions. Please contact
an additional expert if uncertainties occur.
The measures described in this document may only be carried out by qualified technical
professionals.
Factory labels and markings must never be modified, removed or rendered unreadable.
Observe the prescribed operating conditions. For more information, see the section Technical
data.
This device is not intended for:
•Children
•Persons with restricted physical, sensory or mental capacities
•Persons without sufficient experience or knowledge unless they are instructed in the use
of the device, and initially supervised, by a person responsible for their safety.

3Mounting and installation [specialist]
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3Mounting and installation [specialist]
3.1 Installation of the controller
NOTICE
The following section describes only the installation of the controller.
Follow the instructions of each respective manufacturer when installing external components
(valves etc.)
Do not put the controller into operation in case of any visible damage.
1. temperature sensors
S1-S4 (Pt1000)
2. flow sensors
(VFS/US)
3. outputs PWM
4. modbus (RS 485)
5. RS 232
6. outputs 230 V
7. supply
8. position of the jumper
9. fuse
WARNING
Risk of death by electrocution!
Disconnect the controller from the power supply before opening the
body.
Make sure that the power supply cannot be unintentionally switched on
when the body is open.

3Mounting and installation [specialist]
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Inputs FriwaMini:
Terminal
Individual operation mode / Cascade operation mode
S1, ꞱFlow temperature, primary (T-VL)
S2, ꞱOptional: Storage tank temperature (T-SP), ext. circulation temperature,
ext. stratification temperature
S3, ꞱOptional: Storage tank temperature (T-SP), ext. circulation temperature,
ext. stratification temperature
S4, ꞱCold water temperature, secondary (T-CW)
VFS/US1 Domestic hot water temperature (T-DHW) and flow rate, secondary
Inputs FriwaMidi/Maxi/Mega:
Terminal
Individual operation mode / Cascade operation mode
S1, ꞱFlow temperature, primary (T-VL)
S2, ꞱDomestic hot water temperature, secondary (T-DHW)
S3, ꞱOptional: Storage tank temperature (T-SP), ext. circulation temperature,
ext. stratification temperature
S4, ꞱCold water temperature, secondary (T-CW)
VFS/US1 Flow rate, secondary
VFS/US2 (for Friwa Mega): flow rate, secondary
Outputs:
Terminal
Individual operation
Cascade operation mode
R1 Optional: alarm relay, error relay,
reheating, stratification
Cascade valve
R2 Optional: stratification, alarm
relay, error relay, reheating
Stratification
(Connection at server 1)
R3 Primary- / secondary pump Primary- / secondary pump
PWM 1 Primary pump Primary pump
PWM 2 Secondary pump (circulation) Secondary pump
(circulation at the client)