Nabis B24005 Manual Download Page 1

B24005/B24007/B24009/B24011 Inlet Valve

 

(Side entry or Bottom entry) 

Assembly instructions

A

Important for new installations : before turning water on, 
ensure that one cold water tap is open so that dirt and loose 
particles in the pipe work are flushed through the tap (we 
also recommend to flush through the water supply pipe to the 
cistern before connection is made.

A : PRE-INSTALLATION

B : INSTALLATION

Turn off water supply to cistern and remove 
cistern lid.

Flush the cistern and remove any loose dirt from 
inside the tank.

Disconnect and remove the existing inlet valve.

Insert correct filter restrictor into threaded tail.

1

2

3

1

Fit the filling valve. Ensure that the valve does not obstruct 
the flush mechanism. Do not overtighten the back nut

.

2

3

Connect water supply

.

4

B24005 TELESCOPIC 

BOTTOM ENTRY INLET VALVE

!

!

Turn on water supply. Allow the cistern to fill,

5

Adjust the water level,

A

If the water level is not correct, turn off water supply.

Adjust the water level by : Turning slowly right or left to open.

Pulling up the body of the telescopic part, (see pic B).

Turning slowly right or left to lock. Turn on water supply.

B

C

You can precisely adjust the float basin 
with the red rod. Unclip the red rod
Adjust the float basin Clip the red rod.

C

TROUBLE SHOOTING MAINTENANCE
FOR SIDE AND BOTTOM ENTRY VALVES

!

Turn off water supply before any maintenance is carried out.

1

BOTTOM ENTRY

1

SIDE ENTRY

2

2

Remove and wash 
the diaphragm 
and reassemble in 
reverse order.

3

Remove and wash 
the filter restrictor 
and reassemble in 
reverse order.

3

If pressure < 1 bar (15 p.s.i.) :
cut here (gravity pressure / header tank)

Adjustment rod

Float

Float basin

Threaded tail

Rubber washer

Back nut

Filter restrictor

Wolseley UK Ltd, Harrison Way, Leamington Spa,
Warwickshire CV31 3HH. UK
Technical helpline: 

0333 222 4488

www.wolseley.co.uk

TROUBLESHOOTER

THE CISTERN IS NOT FILLING

LEAK FROM THE FLUSHING INTERNAL 
VALVE OVERFLOW

THE FULL FLUSH OR THE HALF FLUSH 
IS NOT SUFFICIENT

THE INLET VALVE DOES NOT SHUT 
OFF OR SHUTS OFF VERY SLOWLY (At 
the installation)

THE INLET VALVE DOES NOT SHUT OFF 
OR SHUTS OFF VERY SLOWLY (after a 
few months of using)

THE CISTERN IF FILLING VERY 
SLOWLY  (at the installation)

PROBLEM

CAUSE

SOLUTIONS

•  Turn on water supply

•  The inlet valve is shut off
   and does not open

•  The high level of the float basin is higher 

than the top level of the overflow

•  The water height is too low in the tank

•  The float is completely outside the float 

basin.

• The diaphragm has some debris 

because the filter is missing.

• The diaphragm has some debris 

because the dirt and loose particles in 
the pipe work have not been flushed 
through the tap before having turned 
the water on (the filter has well been 
assembled on the valve).

•  The filter restrictor has some debris.
•  The diaphragm has some debris.
•  The diaphragm is damaged.
•  The flow restrictor has not been fitted in 

accordance with the instructions.

• The diaphragm has some debris 

because the filter restrictor is missing.

• The diaphragm has some debris 

because the dirt and loose particles in 
the pipe work have not been flushed 
through the tap before having turned 
water on (the filter has been assembled 
on the valve.).

•  Turn on water supply

•  Check all moving components move up and down freely. If 

not unclip the rod from the float (photos 1 and 2). Reclip it 
in correct way (photos 3 and 4).

•  Flush the cistern. Turn the water supply off. Unclip the 

adjustment rod from the float (photos 1 and 2).

•  Push on the float in ordere to make it go down.
•  Clip the adjustment rod on the float in the correct way 

(photos 3 and 4).

•  Check that the water level is right (scheme 5).

•  Flush the cistern. Turn off water supply. Unclip the 

adjustment rod from the float (photos 1 and 2)

•  Raise the level of the float basin on the body
•  Re clip the adjustment rod on the float in the correct 

way (photos 3 and 4).

•  Check the flush is sufficient.
•  Unclip the red adjustment rod from the float (photos 1 

and 2). Reclip it in correct way (photos 3 and 4).

• Put the filter restrictor in accordance with the 

instructions (Scheme 6).

• Wash  the diaphragm in conformity with the 

instructions described on the back. Before turning 
water on, ensure that one cold water tap is open 
so that dirt and loose particles in the pipe work are 
flushed through the tap (Scheme 7).

•  Wash the filter restrictor (photo 10) in conformity with 

the instructions described on the back.

•  Wash the diaphragm (Scheme 7) in conformity with 

the instructions described on the back.

•  Call after self service number (Helpline Number).
• Put the filter restrictor in accordance with the 

instructions (Scheme 6).

• Put the filter restrictor in accordance with the 

instructions (Scheme 6).

• Wash the diaphragm in conformity with the 

instructions described on the back (Scheme 7). 
Before turning water on, ensure that one cold water 
tap is open so that dirt and loose particles in the pipe 
work are flushed through the tap.

THE CISTERN IS NOT FILLING OR IS 
FILLING VERY SLOWLY
(After a few months of using)

THE CISTERN IS FILLING TOO QUICKLY

LEAK FROM THE BACK NUT

•  The diaphragm has some debris

•  The diaphragm is damaged

•  The filter restrictor has not been fitted in 

accordance the instructions

•  The back nut is not tight enough
•  The rubber washer is missing on the 

inlet valve

•  The rubber washer is damaged

•  Wash the diaphragm (Scheme 7) in conformity with the 

instructions described on the back.

•  Call after self service number (Helpline number).

•  Put the filter restrictor in accordance with the instructions 

(Scheme 6).

•  Re tighten the back nut (photo 8).
•  Assemble the rubber washer on the valve (Scheme 9).
•  Call after service number (Helpline number).

(photo 1/2)

(photo 4)

240673

August 2017

B

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