resideo Braukmann F74CS/FN74CS User Guide

: June 7, 2024
: resideo

resideo Braukmann F74CS/FN74CS User Guide

APPLICATION

The reverse rinsing filters ensure a continuous supply of filtered water. The fine filter prevents the ingress of foreign bodies, for example rust particles, strands of hemp and grains of sand and thus reduces the probability of corrosion. The fine filters are used in systems where an existing pressure reducing valve is fitted or where one is not required. Both horizontal and vertical installation is possible

APPROVALS

DVGW
approval for all filters with 100 μm mesh sizes and with
rotatable connection piece

SPECIAL FEATURES

LEAD-FREE: Pb content of all materials less than 0.1 %
Filtered water supplied even during reverse rinsing
Patented reverse rinsing system – fast and thorough cleaning of the filter with small amount of water
Memory ring indicates when next manual reverse rinsing is due
Automatic reverse rinsing actuator with bayonet connector can be retrofitted
Large filter surface
Shock resistant clear synthetic material filter bowl enables easy checking of filter contamination
Filter insert fully replaceable
ACS certified
All materials are KTW approved
Approved by TÜV LGA for low noise, Group 1 without limitations

TECHNICAL DATA

Media

Medium:| Drinking water
Connections/Sizes
Connection sizes:| 1/2″ – 2″ (with rotatable connector piece)
Pressure values
Operating pressure range:| 1.5 – 16 bar
Max. inlet pressure:| 16 bar

(up to 12 bar long-term*)

Operating temperatures
Operating temperature range medium accord. to

EN 1567:

| 5 – 30 °C
Specifications
Installation position:| Horizontal or vertical, with

filter bowl downwards

For maintaining the measuring accuracy of the manometer, a continuous maximum pressure load of 12 bar is permitted.
Note: The filter is constructed for drinking water installations. In case of a process water application the filter has to be proven individually

CONSTRUCTION

Overview		Components	Materials
****	1	Housing with pressure gauge	F74CS-xx/xxLF 1/ 2 **” –

1 1/ 4 “:**
| | High-quality synthetic

material

| | F74CS-xxLF 1 1/ 2 ” – 2″:
| | Lead-free brass
2| Rotatable connector piece, flange sealings, connecting nuts and fittings (F74CS only)| F74CS-xx/xxLF 1/ 2 ” – 1 1/ 4 “:

Dezincification-resistant brass (rotatable connection piece, tail pieces, connection nuts), unitec 300 (flange sealing)

| | F74CS-xxLF 1/ 2 ” – 2″:
| | Lead-free brass (rotatable connection piece, tail pieces, connection nuts), unitec 300

(flange sealing)

3| Clear filter bowl| Shock-resistant, clear

transparent synthetic material

4| Fine filter| Stainless steel
5| Ball valve with drain connection| Lead-free brass (Ball Valve body), Stainless steel (ball), Plastic-durethan (drain

adapter)

| Not depicted components:
| Memory ring| Plastic
| Allen key| Stainless steel
F74CS-xx/xxLF 1/ 2 ” – 1 1/ 4 “:|
WS6|
F74CS-xxLF 1 1/ 2 ” – 2″:|
WS8|
| Wrench for filter bowl and

spring bonnet

| Plastic
| Covers and reverse rinsing handle| Synthetic material filter mesh carrier, reverse rinsing handle

and covers

| Diaphragm| Fibre-reinforced NBR
| Sealing washers| EPDM

METHOD OF OPERATION

The filter insert comprises an upper part and a lower combination section. When in the „filtering“ position, the small upper filter is closed so that the water can only pass through the main filter from outside to inside. When the ball valve is opened for reverse rinsing, the filter is pushed downwards until the water supply to the outer side of the main filter is stopped. Simultaneously, the water flow is opened to the upper part of the filter. The water needed for cleaning the filter passes through the upper sieve, the rotating impeller and the main filter from inside to outside. By this means, the filter is fully cleaned over its whole surface area at the full inlet pressure. The filter automatically switches over to the operating position when the ball valve is closed again.

TRANSPORTATION AND STORAGE

Keep parts in their original packaging and unpack them shortly before use. The following parameters apply during transportation and storage:

Parameter	Value
Environment:	clean, dry and dust free
Min. ambient temperature:	5 °C
Max. ambient temperature:	55 °C

Min. ambient relative

humidity:

| 25 % *
Max. ambient relative

humidity:

| 85 % *

INSTALLATION GUIDELINES

Setup requirements

The installation site has to be frost-proof and the protection of the device from chemicals, paints, detergents, solvents and their vapours and environmental influences must be guaranteed
Install in horizontal or vertical pipework with filter bowl downwards
– This position ensures optimum filter efficiency
Install shut-off valves
These filters are armatures which need to be maintained regularly
Ensure good access
– Pressure gauge can be read off easily
– Degree of contamination can be easily seen with clear filter bowl
– Simplifies maintenance and inspection
It is recommended that a straight section of pipework at least five times the nominal valve size is provided after the filter (according to DIN EN 806-2)
Fit immediately after water meter
Related to the EN 806-2 it is recommended to install the filter immediately after the water meter
In order to avoid flooding, it is recommended to arrange a permanent, professionally dimensioned wastewater connection

Installation Example
F74CS-xx/xxLF 1/2″ – 11/4″

**F74CS-xxLF 11/2″ – 2″

**

TECHNICAL CHARACTERISTICS kvs-Values

Connection sizes:	15	20	25	32	40	50
kvs-value (m3/h):	5.3	7.9	9.0	10.0	16.0	20.0

Pressure drop characteristics

DIMENSIONS

Overview

Parameter	Values
Connection sizes:	R
Nominal sizes:	DN
Weight:	kg
Dimensions:	H
h	298
L	150
I	90
B	178
b	150
t	92
ØT	50
Flow value at ∆p=0.2 bar	m3/h
Flow value at ∆p=0.5 bar:	m3/h
DVGW registration number:	NW-9301 CL 0456

Note: All dimensions in mm unless stated otherwise

ORDERING INFORMATION

The following tables contain all the information you need to make an order of an item of your choice. When ordering, please always state the type, the ordering or the part number.

Options
The filter is available in the following sizes: 1/2″, 3/4″,1 1/2″, 11/4″, 1 1/2″, 1″ and 2″.

standard
– not available

for connection sizes 1/2″ – 1 1/4″

| | F74CS-…AA| F74CS-AC| F74CS-…AD| FN74CS-1A
---|---|---|---|---|---
Connection type:| With rotatable connector piece, filter mesh

size 100 μm

| •| –| –| –
With rotatable connector piece, filter mesh

size 50 μm

| –| •| –| –
With rotatable connector piece, filter mesh

size 200 μm

| –| –| •| –
Retrofit version without rotatable connector

piece, filter mesh size 100 μm

| –| –| –| •

for connection sizes 1/2″ – 2″

| | F74CS-…LFAA| FN74CS-1LFA| FN74CS-2LFA
---|---|---|---|---
Connection type:| With rotatable connector piece, filter mesh size 95/110 μm,

lead-free materials

| •| –| –
Retrofit version without rotatable connector piece, filter mesh size 95/110 μm, lead-free materials (for DA74CS-

xxLFA rotatable connections 1/2″ – 1 1/4″)

| –| •| –
Retrofit version without rotatable connector piece, filter mesh size 95/110 μm, lead-free materials (for DA74CS-

xxLFA rotatable connections 1 1/2″ – 2″)

| –| –| •

Note: … = space holder for connection size
Note: Ordering number example for 2″ and type LFAA valve: F74CS-2LFAA