IVAR SFWC Manuale utente

Fresh Water Controller SFWC

Installation and operating instructions

Read carefully before installation, commissioning and operation

Contents

A. - Safety Instructions 3

A.1. - EC declaration of conformity 3

A.2. - General instructions 3

A.3. - Explanation of symbols 3

A.4. - Changes to the unit 4

A.5. - Warranty and liability 4

B. - Description of Controller 5

B.1. - Specications 5

B.2. - Temperature resistance table 5

B.3. - About the controller 6

B.4. - Scope of supply: 6

B.5. - Disposal and pollutants 6

B.6. - Hydraulic variants 7

C. - Installation 8

C.1. - Wall installation 8

C.2. - Electrical connection 9

C.1. - Installing the temperature sensors 11

D. - Terminal connection diagrams 12

E. - Operation 13

E.1. - Display and input 13

E.2. - Menu sequence and menu structure 14

F. - Parametrisation 15

F.1. - Commissioning help 15

F.2. - Free commissioning 15

F.3. - Calibration 16

1. - Measurements 17

2. - Statistics 18

2.1. - Operating hours 18

2.2. - Heat output 18

2.3. - Graphic overview 18

2.4. - Error messages 18

2.5. - Reset / clear 18

3. - Operating Mode 19

3.1. - Automatic 19

3.2. - Manual 19

3.3. - Off 19

4. - Settings 20

4.1. - Tset 20

4.2. - Tmax 20

4.3. - VFS -Type 20

4.4. - Circulation 21

4.4.1. - Circulation 21

4.4.2. - Circ. Tmin. 21

4.4.3. - Circ. hysteresis 21

4.4.4. - Circ. maximum Flow rate 21

4.4.5. - Circulation period 22

4.4.6. - Tap support 22

4.4.7. - Min storage temp 22

4.4.8. - Tap support calibration 22

4.10. - Comfort 22

5. - Protections / Protective functions 23

5.1. - Antilegionella 23

5.2. - Limescale Protection 24

5.3. - Discharge Protection 24

5.4. - Seizing Protection 24

6. - Special Functions 25

6.1. - Pump menu 25

6.1.1. - Type of pump 25

6.1.2. - Pump 25

6.1.3. - Output Signal 25

6.1.4. - 0-10V off / PWM off 25

6.1.5. - 0-10V on / PWM on 26

6.1.6. - 0-10V Max / PWM Max 26

6.1.7. - Show signal 26

6.2. - Speed control R1 / R2 27

6.2.1. - Max. speed 27

6.2.2. - Min. speed 27

6.3. - Relay functions 27

6.3.1. - Always on 27

6.3.2. - Circulation 27

6.3.3. - Parallel operation V1 27

6.4. - Sensor calibration 28

6.5. - Commissioning 28

6.6. - Factory settings 28

6.7. - Time & Date 28

6.8. - Daylight saving time 29

6.9. - Sleep mode 29

6.10. - Temperature unit 29

7. - Menu Lock 30

7.1. - Menu lock 30

7.2. - Expert mode 30

8. - Service Values 31

9. - Language 32

Z.1 Malfunctions with Error Messages 33

Z.2 Replacing the Fuse 34

Z.3. Maintenance 35

Safety Instructions

A.1. - EC declaration of conformity

By af xing the CE mark to the unit the manufacturer declares that the SFWC conforms to

the following relevant safety regulations:

- EC low voltage directive 2006/95/EC

- EC electromagnetic compatibility directive 2004/108/EC

Conformity has been veri ed and the corresponding documentation and the EC declaration

of conformity are kept on  le by the manufacturer.

A.2. - General instructions

It is essential that you read this!

These installation and operating instructions contain basic instructions and important infor-

mation regarding safety, installation, commissioning, maintenance and the optimal use of the

unit. Therefore these instructions must be read completely and understood by the installation

technician/ specialist and by the system user before installation, commissioning and opera-

tion of the unit.The valid accident prevention regulations, VDE regulations, the regulations

of the local power utility, the applicable DIN-EN standards and the installation and operating

instruction of the additional system components must also be observed. The controller does

not under any circumstances replace any safety devices to be provided by the customer!

Installation, electrical connection, commissioning and maintenance of the unit may only be

carried out by specialists who possess the appropriate training.

For the user: Make sure that the specialist gives you detailed information on the function and

operation of the controller. Always keep these instructions in the vicinity of the controller.

A.3. - Explanation of symbols

Caution

Information which is especially important for the function and optimal use of

the unit and the system.

Caution

Failure to observe these instructions can result in destruction of

the unit or the system, or damage to the environment.

Danger

Failure to observe these instructions can result in serious damage

to health such as scalding, or even life-threatening injuries.

Failure to observe these instructions can result in danger to life from electric

voltage.

Danger

A.4. - Changes to the unit

A.5. - Warranty and liability

The controller has been manufactured and tested with regard to high quality

and safety requirements. The unit is subject to the statutory guarantee period

of two years from the date of sale.

The warranty and liability shall not include, however, any injury to persons or

material damage that is attributable to one or more of the following causes:

- Failure to observe these installation and operating instructions

- Improper installation, commissioning, maintenance and operation

- Improperly executed repairs

- Unauthorised structural changes to the unit

- Installation of additional components that have not been tested together with the unit

- Any damage resulting from continued use of the unit despite an obvious defect

- Failure to use original spare parts and accessories

- Use of the device for other than its intended purpose

- Operation above or below the limit values listed in the speci cations

- Force majeure

- Changes, additions to or conversion of the unit are not permitted without the written permis-

sion 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 immediately

- Any parts of the unit or accessories that are not in perfect condition must be exchanged

immediately

- Use only original spare parts and accessories from the manufacturer.

- Markings made on the unit at the factory must not be altered, removed or made illegible

- Only the settings actually described in these instructions may be made on the controller

Safety instructions

Danger

Changes to the unit can compromise the safety and function of the

unit or the entire system.

Description of controller

B.1. - Specications

B.2. - Temperature resistance table for Pt1000 sensors

°C 0 10 20 30 40 50 60 70 80 90 100

Ω1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385

Electrical specications:

Mains voltage 230VAC +/-10%

Mains frequency 50 - 60Hz

Power consumption 1,5W - 2,0W

Internal fuse 2A slow blow 250V

Protection category IP40

Protection class II

Overvoltage Category II

Degree of Pollution Category II

mechanisches Relais 460VA für AC1 / 460W für AC3 1

0-10V output, tolerance 10%, 10 k Ω load or

PWM output freq. 1 kHz, level 10 V

PT1000 sensor input measuring range -40°C to 300°C 2

Permissible cable length of sensors and appliances:

Sensor S1 and S2 <10m

PWM / 0...10V <3m

mechanical relay <10m

VFS <3m

Permissible ambient conditions:

Ambient temperature

for controller operation 0°C...40°C

for transport/storage 0°C...60°C

Air humidity

for controller operation max. 85% rel. humidity at 25°C

for transport/storage no moisture condensation permiddled

Other specications and dimensions

Housing design 2-part, ABS plastic

Installation methods Wall installation, optionally panel installation

Overall dimensions 115mm x 86mm x 45mm

Aperture dimensions 108mm x 82mm x 25.2mm

Display Fully graphical display, 128 x 128 dots

Operation 4 entry keys

B.3. - About the controller

The Fresh water controller SFWC facilitates ef cient use and function control through of

your fresh water system. Tap water temperature is regulated fast and precise. 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 func-

tions 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 SFWC:

- Depiction of graphics and texts in a lighted display

- Simple viewing of the current measurement values

- Analysis and monitoring of the system by means of statistical graphics,etc.

- Extensive setting menus with explanations

- Menu block can be activated to prevent unintentional setting changes

- Resetting to previously selected values or factory settings

B.4. - Scope of supply:

- Fresh water controller SFWC

- replacement fuse 2A slow-blow

- Installation and operating instructions SFWC

Optionally contained depending on design/order:

- Pt1000 temperature sensor and Vortex Flow Sensor

B.5. - Disposal and pollutants

The unit conforms to the European RoHS directive 2011/65/EU for the restriction of the use

of certain hazardous substances in electrical and electronic equipment.

Caution

The unit must not under any circumstances be disposed of with ordinary

household refuse. Dispose of the unit only at appropriate collection points or

ship it back to the seller or manufacturer.

Description of controller

B.6. - Hydraulic variants

Description of controller

The following illustrations should be viewed only as schematic diagrams

showing the respective hydraulic systems, and do not claim to be complete.

The controller does not replace safety devices under any circumstances.

Depending on the speci c 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 there-

fore be provided.

Caution

Basic scheme Additional function circulation

Installation

C.1.1

C.1.2

C.1 Wall installation

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

(C.1.2) up to the selected position and

mark the 2 mounting holes. Make sure

that the wall surface is as even as possi-

ble so that the housing does not become

distorted when it is screwed on.

5. Using a drill and size 6 bit, drill 2 holes

at the points marked on the wall and push

in the plugs. Also possible is the installati-

on with 4 drill holes.

6. Insert the upper screw and screw it in

slightly.

7. Fit the upper part of the housing and

insert the other screws.

8. Align the housing and tighten the

screws.

Caution

Install the controller only in dry areas and under the ambient conditions

described under 2.1 “Speci cations”. Carry out the following steps:

Installation

Caution

Danger

Caution

C.2 Electrical connection

Before working on the unit, switch off the power supply and secure

it against being switched on again! Check for the absence of power!

Electrical connections may only be made by a specialist and in

compliance with the applicable regulations.

Do not use the controller if the housing shows visible damage.

Low-voltage cables such as temperature sensor cables must be routed

separately from mains voltage cables. Feed temperature sensor cables

only into the left-hand side of the unit, and mains voltage cables only

into the right-hand side.

The customer must provide an all-pole disconnecting device, e.g. a

heating emergency switch.

The cables being connected to the unit must not be stripped by more

than 55mm, and the cable jacket must reach into the housing just to the

other side of the strain relief.

We recommend the use of  exible cables to ease the installation in the

clamp room.

Caution

1.Select necessary program/hydraulics

(see section D)

2. Strip cables by 55mm max., insert,  t

the strain relief devices, strip the last

9-10 mm of the wires. (Fig. C.2.1)

3.Open controller as described under  g.

C.1.1, insert cables and install strain

reliefs

4.Install PE terminal block (see  g. 2.1.a).

C.2.1

C.2.1.a

Installation

5. Connect the female connector block ‘s

clamp connections as described in the

terminal connection plans. When using

stranded cables, use a small screw dri-

ver and push the orange buttons while

inserting (see  g. C.2.1.c). When using

solid cable or end splice, just push the

cables in (see  g. C.2.1.d).

6. Plug Female connectors into onboard

headers.

7. Hinge the upper part of the casing on

the top of the lower part and close the

casing gently.

8. Fasten with screw.

9. Switch on mains voltage and place

controller in operation.

C.2.1.e

C.2.1.c

C.2.1.d

screw driver

C.2.1.f

To remove the female connector block

from the header, carefully bend the latch

on the header.

Caution: The latch breaks easily.

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