Fresh Water Controller FWC3 Installation and operating instructions Read carefully before installation, commissioning and operation

1 Safety instructions 1 1.1 EC dclaration of conformity By affixing the CE mark to the unit the manufacturer dclares that the FWC3 conforms to the following relevant safety regulations: - EC low voltage directive 73/23/EEC, as amended by 93/68/EEC - EC electromagnetic compatibility directive 89/336/EEC version 92/31/EEC version 93/68/EEC Conformity has been verified and the corresponding documentation and the EC declaration of conformity are kept on file by the manufacturer. 1.2 General instructions It is essential that you read this! These installation and operating instructions contain basic...

pj~| Safety instructions [T] 1.4 Changes to the unit /\ Changes to the unit can compromise the safety and function of the D^runit or the entire System. - Changes, additions to or conversion of the unit are not permitted without the written permission from the manufacturer - It is likewise forbidden to install additional components that have not been tested together with the unit - If it becomes clear that safe operation of the unit is no longer possible, for example because of damage to the housing, then turn the controller off im-mediately - Any parts of the unit or accessories that are not...

2 Description of controller 2 2.1 Spcifications Electrical spcifications: Mains voltage Mains frequency Power consumption Switched power Electronic relay R1 Mechanical relay R2 Internal fuse Protection category Protection class Sensor inputs 230VAC +/- 10% 50...60Hz 2VA min.20W...max.120W for AC3 460VA for AC1 / 185W for AC3 2A slow blow 250V IP40 II 3 x Pt1000 + 1x Vortex Flow Sensor (VFS) Permissible ambient conditions: Ambient temperature for controller operation for transport/storage Air humidity for controller operation for transport/storage 0°C...40°C 0°C...60°C max. 85% rel. humidity at...

2 Description of controller 2 2.2 About the controller The Fresh water controller FWC3 facilittes efficient use and function control of your fresh water system. The device is impressive most of all for its functionality and simple, almost self-explanatory operation. For each step in the input process the individual entry keys are assigned to appropriate functions and explained. The controller menu contains headwords for the measured values and settings, as well as help texts or clearly-structured graphics. Important characteristics of the FWC3: - Depiction of graphics and texts in a lighted display...

2 Description of controller 2 2.5 Hydraulic variants A The following illustrations should be viewed only as schematic dia-/ «\ grams showing the respective hydraulic Systems, and do not daim caution t0 kg complte. The controller does not replace safety devices under any circumstances. Depending on the spcifie application, additional system components and safety components may be mandatory, such as check valves, non-return valves, safety temperature limiters, scalding protectors, etc., and must therefore be provided. S4 S5 S6 R1 2 S4 -T- R2 S2 R1 For optimal function of the system, it is necessary...

3 Installation 3 3.1 Wall installation A Install the controller only in dry areas and under the ambient conditions described under 2.1 "Specifications". Carry out the Caution following steps 1-8. Fig.3.1.1 1.Unscrew cover screw completely 2.Carefully pull upper part of housing from lower part. 3.Set upper part of housing aside, being sure not to touch the electronics when doing so. 4.Hold the lower part of the housing up to the selected position and mark the 3 mounting holes. Make sure that the wall surface is as even as possible so that the housing does not become distor-Fig.3.1.2 ted when it...

31 Installation [3 3.1 Electrical connection A Before working on the unit, switch off the power supply and secure it against being switched on again! Checkforthe absence of power! Elec- Danger frjca| connections may only be made by a specialist and in compliance with the applicable rgulations. Do not use the controller if the housing shows visible damage. a Low-voltage cables such as temperature sensor cables must be routed /!\ separately from mains voltage cables. Feed temperature sensor cables Caution only into the left-hand side of the unit, and mains voltage cables only into the right-hand...

3 Installation 3 3.2 Electrical connection (continued) Fig. 3.2.2 Without circulation pump" A Caution Sensor side max. 12V Mains side 230VAC Danger Z2 □ Z1 □ + □ S6 □ S5 □ S4 □ S3 □ S2 □ S1 □ n □ □ □ □ □ □ DĻ e e e R2 □ N □ L □ N □ R1 □ N □ Terminal block sensor PE Low voltage max. 12VAC/DC connection in the left-hand terminal compartment! Mains voltages 230VAC 50-60Hz Connection in the right-hand terminal compartment! Terminal: Connection for: L Mains phase conductor L N Mains neutral conductor N R1 Fresh water pump L N Fresh water pump N R2 Not used N Not used Terminal: S1 S2 S3 S4 S5 S6 +...

3 Installation 3 Fig. 3.2.3 With circulation pump" A Caution Sensor side max. 12V Mains side 230VAC Danger Z2 □ Z1 □ + □ S6 □ S5 □ S4 □ S3 □ S2 □ S1 □ n □ □ □ □ □ □ ĕ R2 N L N R1 N □ □ □ □ ■ ■ □ □ 0 e e PE Terminal block sensor Low voltage max. 12VAC/DC connection in the left-hand terminal compartment! Terminal: Connection for: Mains voltages 230VAC 50-60Hz Connection in the right-hand terminal compartment! Terminal: Connection for: S1 S2 S3 S4 S5 S6 + PT1000 cold water PT 1000 circulation PT1000 stor.tank opt. PT1000 flow primary Hot water (VFS yellow) Flow (VFS white) VFS brown (+) VFS green(-)...

Opration 4.1 Display and input (2) (1) The display (1), with its extensive text and graphics mode, is almost selfex-planatory, allowing easy operation of the controller. The LED (2) lights up green when a relay is switched on. The LED (2) lights up red when operating mode "Off" is set. The LED (2) flashes slowly red in the operating mode "Manual". The LED (2) flashes quickly red when an error is present. Entries are made using four keys (3+4), which are assigned to different functions depending on the situation. The "esc" key (3) is used to cancel an entry or to exit a menu. If applicable there...