AIR GAP Fluidmaster 6000 Series User manual

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6000 Series AirGap™ Installation Guide
Bottom entry valve assembly
Float adjustment screw
1.
Cap
2.
Anti-siphon vortex generator
3.
Float chamber & locking sleeve
4.
Washer
5.
1/2” or 3/8” BSP threaded shank
6.
Nut
7.
Pre-fitted flow controller and filter
8.
INSTALL WITH CONFIDENCE

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6000 Series AirGap™ Installation Guide
Side entry valve assembly
Float adjustment screw
1.
Cap
2.
Anti-siphon vortex generator
3.
Float chamber
4.
Washer
5.
1/2” or 3/8” BSP threaded shank
6.
Nut
7.
Pre-fitted flow controller and filter
8.

Possible Cause Possible Solution
Debris around diaphragm. Isolate water supply. Remove cap
(1/8 turn counterclockwise).
Remove diaphragm and clean in
water or replace the diaphragm.
Insufficient water supply
flow/pressure.
Open isolation valves fully, inspect
system & pipework.
Cap not tightened. Ensure cap is fully tightened
clockwise against the stop.
Valve assembly is jammed. Ensure float adjustment screw
and attached components are free
to move vertically.
Locking sleeve is ‘up’ (bottom entry
only).
Ensure float chamber and locking
sleeve is ‘down’ (locked position).
Flow controller and filter is
blocked.
Isolate and disconnect from water
supply. Remove flow controller
and filter from threaded shank to
clean.
Certification/compliance
Note: Datum level for vacuum test is a
marked line on the body below the cap.
6000 Series AirGap™ Installation Guide
Fault-finding (Failure to Operate)

OFF
6000 Series AirGap™ Installation Guide
Removing your old valve
Step 2
Measure or mark the water level
inside your cistern. Drain all water
from the cistern and disconnect valve
supply pipework.
Step 3
Remove the old valve from the cistern
and ensure the fixing hole area is
clean and free of debris or anything
which may impair sealing.
Step 1
Turn off the water supply to the toilet
using isolation valve or mains
stopcock.

Washer
6000 Series AirGap™ Installation Guide
Preparing for installation
Step 4
Most tank fed systems (<7m of
vertical pipe) will benefit from the
removal of the flow controller and
filter. Mains water or pumped
installations require the filter/restrictor
to be fitted.
Note: For side entry valve, ensure the flow
controller and filter is fitted in the
orientation as shown.
Step 5
Check that the sealing washer is
pushed fully onto the threaded shank.

ON
6000 Series AirGap™ Installation Guide
Installation
Step 6
Install the valve through the cistern fixing
hole with the washer inside the cistern
and the nut on the outside. Ensure the
valve is not fouling on the cistern walls
or flush mechanism.
Step 7
Tighten the nut by hand and then by ½
to ¾ of a further turn with an
appropriate spanner/wrench, to
achieve an adequate seal. Be careful
not to rotate the valve and do not
overtighten.
Step 8
Turn the water supply back on ensuring
there are no leaks and the flush is
operating correctly.
Note: There will be a delay between float lift
and valve shut-off and initial cycles of a new
valve may be accompanied by a slight noise.

‘Up’ in
unlocked
position
‘Up’ in
unlocked
position
‘Down’ in
locked
position
6000 Series AirGap™ Installation Guide
Water level adjustment
Step 9
Based on your reading taken in Step 2,
fine tune the water level by turning the
float adjustment screw. Flush to check
the new level and readjust as necessary.
Note: Clockwise rotation will raise the water
level, counterclockwise rotation will decrease
the water level.
Step 11 (for bottom entry valve only)
When the valve has been adjusted to
the required height, push the float
chamber and locking sleeve back
down to relock the mechanism.
Note: Ensure the float chamber and locking
sleeve are returned to the locked position
before restoring the water supply.
Step 10 (for bottom entry valve only)
To make larger adjustments to the
height, turn the water supply off and
unlock the float chamber and locking
sleeve by lifting it upwards.
Important note: Do not force the float
chamber and locking sleeve beyond the
height shown, causing this tab to bend. This
may result in damage to the valve and
invalidate the warranty.

WARRANTY
This Fluidmaster product has a limited warranty for a period of 5 years.
For complete warranty details, please visit our website at
www.fluidmaster.com.
For more information in the UK, contact:
salesUK@fluidmaster.com
www.fluidmasterUK.com
Do not use in-cistern drop-in toilet bowl cleaners
containing bleach or chlorine. Use of such products will:
(1) result in damage to cistern components and may cause
flooding and property damage and (2) void fluidmaster warranty.
Do not overtighten nuts or cistern/bowl may crack.
Always use quality Fluidmaster parts when installing or repairing.
Fluidmaster will not be responsible or liable for use of
non-Fluidmaster parts during installation or repair.
It is the responsibility of the installer to ensure work is carried out in accordance with all
appropriate regulations and guidance.
© 2019 Fluidmaster, inc. ® Registered trademark of Fluidmaster, inc. AirGap™ is a
trademark of Fluidmaster GB Ltd. Leaflet code: LF00296 Rev 2 - 03/01/2020
6000 Series AirGap™ Installation Guide
Warranty & contact details