Maintenance - Honeywell FK09S Installation Instructions Manual

7.3. Discharge of reverse rinsing water
The reverse rinsing water must be routed to the drain channel
in such a way that no backwater can occur.
To do this there are 3 options:
1. Direct connection:
• Connector DN 50/70 as well as the necessary pipes
and siphon (3 elbows 90°) in DN 70.
2. Discharge into floor drain
3. Drain into open container.
Filter size Reverse rinsing volume*
1/2" and 3/4" 12 litres
1" and 1 1/4" 15 litres
1 1/2" and 2" 18 litres
*at 4 bar inlet pressure and 3 x 3 seconds reverse rinsing duration
8. Start-up
8.1. Setting outlet pressure
Set outlet pressure min. 1 bar under inlet pressure.
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water tap)
3. Close shutoff valve on outlet
4. Loosen slotted screw
• Do not remove slotted screw
5. Slacken tension in compression spring
• Turn adjustment handle counter clockwise (-) until it
does not move any more
6. Slowly open shutoff valve on inlet
7. Turn control handle until the setting scale shows the
desired value
8. Retighten slotted screw
9. Slowly open shutoff valve on outlet
8.2. Reverse rinsing
During reverse rinsing, an inlet pressure of at least 1.5 bar is
required. The reverse rinsing interval depends on the degree
of dirt in the water. At the latest every 2 months, reverse
rinsing should be carried out according to EN 806-5. To
ensure convenient and regular adherence to the reverse
rinsing interval, we recommend installing an automated
reverse rinsing system Z11S.
Filtered water can also be tapped during reverse
rinsing.
MU1H-1130GE23 R0617
GB
8.2.1. Manual reverse rinsing
If reverse rinsing water is not to be discharged via a direct
connection, a collecting container must be positioned
beneath before reverse rinsing.
1. Open ball valve by turning the reverse rinsing button to
the stop point
• Select bar must be upright
• The patented reverse rinsing system starts
2. Close ball valve again after approx. 3 seconds. Repeat
procedure three times
• If the filter is extremely dirty, the procedure may have to
be repeated additional times
With aid of the memory ring, the next deadline for manual
reverse rinsing can be booked.
8.2.2. Automatic reverse rinsing with the Z11S
The automated reverse rinsing system Z11S is available as
an accessory. The automated system reliably takes over
reverse rinsing of the filter at intervals which can be set
between 4 minutes and 3 months.

9. Maintenance

We recommend a planned maintenance contract with
an installation company
In accordance with EN 806-5, the following measures must
be taken:
9.1. Inspection
9.1.1. Pressure reducing valve
Interval: once a year
1. Close shutoff valve on outlet
2. Check outlet pressure using a pressure meter when there
is zero through-flow
• If the pressure is increasing slowly, the valve may be
dirty or defective. In this instance, carry out servicing
and cleaning
3. Slowly open shutoff valve on outlet
9.1.2. Filter
Interval: every 2 months
• The filter must be cleaned by reverse rinsing regularly, at
the latest every 2 months
• Non-compliance can lead to the filter becoming blocked
This results in a drop in pressure and decreasing water
flow
• The filter meshes are made of stainless steel. A red
coating as a consequence of rust from the pipelines has no
influence on function or the way the filter works
Do not forget to do a visual check of the ball valve.
Replace if it is dripping!
7 Honeywell GmbH