Resideo Braukmann F74cs/fn74cs User Guide

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

* 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” – 11/4“:
			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” – 11/4“: 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” – 11/4“:
		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:

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

Pressure drop characteristics

DIMENSIONS

Overview

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″

for connection sizes 1/2″ – 2″

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

Accessories

	Description		Dimension	Part No.
	DA74	Rotatable connector piece For connection of retrofit filters and filter combinations
			1/2″	DA74CS-1/2A
			3/4″	DA74C-3/4A
			1″	DA74C-1A
			11/4″	DA74C-11/4A
		lead-free	1/2″	DA74CS-1/2LFA
		lead-free	3/4″	DA74CS-3/4LFA
		lead-free	1″	DA74CS-1LFA
		lead-free	11/4″	DA74CS-11/4LFA
		lead-free	11/2″	DA74CS-11/2LFA
		lead-free	2″	DA74CS-2LFA
		lead-free, no connection parts	1/2″ – 3/4″	DA74CS-1/2LFE
		lead-free, no connection parts	1″	DA74CS-1LFE
		lead-free, no connection parts	11/4″	DA74CS-11/4LFE
		lead-free, no connection parts	11/2″ – 2″	DA74CS-2LFE
	ZR74CS	Double ring wrench for removing the filter bowl
			1/2″ + 11/4″	ZR74CS
	ZR10K	Double ring wrench for removing the filter bowl
			11/2″ + 2″	ZR10K-11/2
	Z74S-AN for 1/2” – 11/4“	Automatic reverse rinsing actuator For automatic filter cleaning at presettable intervals
				Z74S-AN
	Z11S	Automatic reverse rinsing actuator For automatic filter cleaning at presettable intervals
		230 V, 50/60 Hz, 10 with moulded Schuko electrical plug		Z11S-A
		24 V, 50/60 Hz, 10 without electrical plug		Z11S-B
	D06FR	Retrofit pressure reducing valve insert set For retrofitting to upgrade to a filter combination
			1/2″ + 11/4″	D06FR-1A

Spare Parts
F74CS/FN74CS Fine filters from 2010/2020 (lead-free) onwards

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References

• Comfort Europe from Resideo