Construction
The fine filter comprises:
• Housing with pressure gauge
• Fine filter in clear filter bowl
• Rotatable connector piece (F76CS only)
• Ball valve with drain connection
• Double wring wrench
Materials
• Red bronze housing
• Red bronze connector piece
• Stainless steel fine filter
• Shock-resistant, clear transparent synthetic material filter
bowl
• NBR seals
EN0H-1111GE23 R1009 • Subject to change
F76CS/FN76CS
Reverse rinsing filter
with clear filter bowl
Product specification sheet
Application
F76CS/FN76CS 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. The appliances correspond to the requirements of
current DIN/DVGW specifications..
F76CS/FN76CS fine filters are especially suitable for retrofitting
to, or upgrading of existing water systems.The rotatable
connector piece enables the unit to be fitted where space is very
restricted in either horizontal or vertical pipework.
Special Features
• DVGW-approval requested
• Double Spin Technology
o Cartridge with external rotor enabling simultaneous
cleaning in lower and upper filter areas
o Visual function check possible
• 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 and complete filter bowl are replaceable
• With a retrofit D06FB pressure reducing valve, can be
converted to a filter combination
• Standardised discharge connection
• Meets KTW recommendations for potable water
Range of Application
Medium Water
The filter is constructed for drinking water installations. In case of
a process water application the filter has to be proven individually.
Technical Data
Installation position Horizontal or vertical,
with filter bowl downwards
Operating pressure Minimum 1.5 bar
Maximum 16.0 bar
Operating temperature Maximum 40 °C with clear filter bowl
Connection size
3
/4" - 11/4"
www.honeywell.com 35
F76CS/FN76CS Reverse rinsing filter
Connection size with DA74C R3/4"1"11/4"
Nominal size diameter DN 20 25 32
Weight ca. kg 3,7 3,8 3,9
Dimensions mm
L 158 179 197
I 90 100 105
T 177 177 181
t959599
H 442 453 463
h 363 363 363
D979797
3
Flow value at ∆p=0.2bar m
-value 7,3 8,7 9,0
k
vs
DIN/DVGW Approval No. requested
/h 3,1 3,6 3,8
Method of Operation
The filter insert is divided into two parts. In the „filtering“ position,
only the lower, larger section is rinsed through by water jets from
outside to inside. The small upper section does not come in
contact with unfiltered water. When the ball valve is opened for
reverse rinsing, then the whole filter insert 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 filter section, then the rotating impeller and the
main filter from inside to outside, i.e. the filter is reverse rinsed
with filtered water. In that way the upper filter is also cleaned by
jets from the impeller. The filter automatically switches back to
the operating position when the ball valve is closed again.
Filters with Double Spin Technology have turbine blades which
circulate the water and thereby set the rotor on the upper filter
into a rotational motion. The internal impeller rinses off particles
that have adhered to the upper filter at the intersecting points
with the rotor.
Options
F76CS-...AA = Filter mesh size 100 µm, incl. rotatable
connector piece DA74C with threaded male
connections
Connection size
FN76CS-1A = Filter mesh size 100 µm; rotatable connector
piece DA74C has to be ordered separately see accessories
Accessories
Z11S Automatic reverse rinsing actuator
For automatic filter cleaning at presettable intervals
Z11S
D06FB
36 www.honeywell.com
FT09RS
AF11DS
RV277
VST06A
VST06B
DA74C
FT09RS Red-bronze filter bowl
For temperatures up to 70°C and operating pressures
up to 25.0 bar
D06FB Retrofit pressure reducing valve
For retrofitting to upgrade to a filter combination
RV277 Inlet check valve
1
Available in sizes R
/2" - 2"
VST06 Connection set
Connection set
A = Threaded male connection;
B = Solder union connection
AF11DS Filter insert complete
Available with filter meshes 20 µm, 50 µm, 100 µm,
200 µm, 300 µm, 500 µm (for filters with Double Spin
Technology)
DA74C Rotatable connector piece
For connection of retrofit filters FN76CS.
* The filter guide (either with double spin or without double spin feature) is included
in the packaging of the replacement filter inserts (AF11DS and AF11S) only for the
sizes 1/2" up to 11/4!
EN0H-1111GE23 R1009 • Subject to change
Installation Example
F76CS/FN76CS Reverse rinsing filter
Installation Guidelines
• Install in horizontal or vertical pipework with filter bowl
downwards
o This position ensures optimum filter efficiency
• Install shutoff valves
• Ensure good access
o Pressure gauge can be read off easily
o Degree of contamination can be seen with clear filter bowl
o Simplifies maintenance and inspection
• The installation location should be protected against frost
• Fit immediately after water meter
o Corresponds to DIN 1988, Part 2
Flow Diagram
Typical Applications
Fine filters of this type are suitable for supplies to buildings of all
types. They can also be used for commercial and industrial applications within the limits of their specifications.
Fine filters of this type are installed:
• Where there is existing metal or plastics pipework
• For installation in horizontal or vertical pipework
• As replacement for an existing filter
• Where space is limited
• If the downstream system includes appliances which must be
protected against dirt
EN0H-1111GE23 R1009 • Subject to change
www.honeywell.com 37
F76CS/FN76CS Reverse rinsing filter
1
4
Spare Parts
Filters F76CS/FN76CS (From 1997 onwards)
1 Pressure gauge M07M-A16
(0 - 16 bar)
2 Flange seal
3
3 Seal ring set
3
/4" - 11/4" 5536400
3
/4" 0901444
(Pack of 10) 1" 0901445
1
1
/4" 0901446
4 Filter insert complete
3
/4" - 11/
"
4
AF11DS-1A
for filters with Double
2
Spin Technology
Filter mesh 100 µm
5 Clear filter bowl
3
/4" - 11/4"KF11S-1A
complete
6 O-ring set
3
/4" - 11/4" 0900747
(Pack of 10)
7 Ball valve complete
8 Drain connection
3
/4" - 11/4" KH11S-1A
3
/4" - 11/4" AA76-1/2A
9 Double ring wrench
for removing filter
bowl (no fig.)
6
* The filter guide (either with double spin or without double spin feature) is included
in the packaging of the replacement filter inserts (AF11DS and AF11S) only for the
sizes 1/2" up to 11/4!
3
/4" - 11/4" ZR10K-3/4
5
7
8
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
D-74821 Mosbach
Phone: (49) 6261 810
Fax: (49) 6261 81309
http://europe.hbc.honeywell.com
www.honeywell.com
Manufactured for and on behalf of the
Environmental and Combustion Controls Division
of Honeywell Technologies Sàrl, Rolle, Z.A. La
Pièce 16, Switzerland by its Authorised Representative Honeywell GmbH
EN0H-1111GE23 R1009
Subject to change without notice
© 2009 Honeywell GmbH
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