Kohler 10611A-NA User manual

Before You Begin
Tools and Materials
Thank You For Choosing Kohler Company
Read the installation guide carefully and install the product accordingly.
The product information contained in this publication is correct at the time
of printing. Kohler Co. reserves the right to implement changes or product
characteristics, packaging and availability at any time without further notice.
Do not use corrosive cleaners or solvents in or on the tank. This may damage
the tank. Do not use any spare parts which are not suppled
by Kohler.
Kohler will not be responsible for any damage due to the
installation
of non approved spare parts.
We appreciate your commitment to Kohler quality. Please take a few minutes
to review this manual before you start installation. If you encounter any
installation or performance problems, please don’t hesitate to contact us.
Our phone numbers are listed on the back cover. Thanks again for choosing
Kohler Company.
Warning
This product is designed for a water supply pressure range of 20 psi
(137kPa) minimum to 80psi (550 kPa) maximum.
Any installations where the supply pressure is outside of these limits
will not be covered by warranty.
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Installation Instructions and
Home Owner’s Guide
Mechanical In-Wall Cistern
Without Frame (Slim)
10611A-NA
477A-CP 75981T-CP
8857A-CP 75890T-CP



Adjustable water inlet level.



Corrosion resistant and leak
proof design.
Easy installation for stud.
Easy maintenance.
Space saving.
Dual 3/4.5 flush.
Adjustable toilet fixing height.
Dual flush.
Adjustable flush volume.
Anti back flow device.
Features
Advantages of In Wall Cistern
Rough-in
Unit: mm
90 min
1. Minimum cavity (stud pocket)
dimensions for installation of the
in-wall cistern, 553mm wide, 90mm
deep.
Installation procedures for an In wall cistern in a stud wall
2. For the distance from the finished floor level to the centre of the water
inlet, please refer to the toilet manufacturers installation instruction.
Fit the in wall tank to the stud’s using the tek screws ensuring the centre
of the water inlet is at the correct distance above the finished floor level.
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Flush Plate Shield
Screw
3. Screw the flush plate shield into position.
the frame to verify that the pan height
to the finished floor level is correct.
Cut the wall lining to suit the position
of the flush plate, waste pipe, flush
pipe and toilet fixing holes. Fit the
wall lining to the stud.
Wall Lining

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5. Using a sharp knife, trim the flush plate
shield back level with the finishedwall.
If the finished wall is to be tiled please
ensure the thickness of the tile is included.
The trimmed flush plate shield must sit
flush with the finished wall.
Flush Plate
Shield
Knife
6. Fit flush pipe connectors and
gasket to the flush pipe inlet on the
toilet. Fit the waste pipe connector
and gasket to the waste pipe outlet
on the toilet.
7. Mark on the pipe connectors
the position of the rear of the toilet.
Remove the pipe connectors.
8. Mark on the pipe connectors a second line, which represents the
pipes within the wall. This connection distance is the distance between the
rear of the tank and the hole in the wall lining.
Gasket
Flush Pipe
Connector
Waste Pipe
Connector Gasket
Ruler
Pencil
Waste Pipe Mark Showing Position of Toilet Rear
Flush Pipe
Connection Distance

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9. Cut both the waste pipe and
flush pipe at the connection distance
marks. Remove all burrs from the
cut edges and reinstall on the toilet.
e locking
plate and push the cover into the position.
Cover
Lock
Cover
Tab
Locking
Plate
Full
Flush
Reduced
Flush
Locking
Plate
Locking
Bolts
Flush
Rod Unthreaded
End
10. Fix the locking plate to the flush
plate shield usaing the plastic locking
bolts. To lock the bolts in position turn
the bolt until the tab on the bolt head is
vertical. Trim the length of the locking
bolts if required.
Lock nuts
Flush Plate installation
11. Screw the flush rods into the flush
actuator until the unthreaded end of
the rod is flush with the locking plate.
Ensure the flush rod is secured
through the square holes at the rear
of the flush actuator.
Test the flush action to ensure it is
moving smoothly. Adjust the flush
rod as required and then tighten the
lock nuts to prevent adjustment over time.

Removal and Maintenance of Outlet Valve
Cover
1. Hold the cover with both hands and
push upward. Rotate the top of the
cover away from the wall to release.
3. Turn the lock bolt to the OPEN
position and remove the locking
plate.
2. Unscrew the flush rods.
4. Unhook the 2 valve legs from the
flush actuator.
5. Lift the flush actuator upward to
release it from the tank and remove.
Valve Leg
6. Turn the water off at the shut off
valve inside the tank. Unscrew the
fill valve fixing nut and remove the
fill valve.
Nut
Shut off valve
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Removal and Maintenance of Outlet Valve
Cover
1. Hold the cover with both hands and
push upward. Rotate the top of the
cover away from the wall to release.
3. Turn the lock bolt to the OPEN
position and remove the locking
plate.
2. Unscrew the flush rods.
4. Unhook the 2 valve legs from the
flush actuator.
5. Lift the flush actuator upward to
release it from the tank and remove.
Valve Leg
6. Turn the water off at the shut off
valve inside the tank. Unscrew the
fill valve fixing nut and remove the
fill valve.
Nut
Shut off valve
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7. Note the orientation of the flush valve
legs. Remove the legs from the flush valve
by unhooking the base of the leg from the
flush valve.
Pull
Flush Valve Leg
8. To release tab securing the flush
valve by pulling it towards you.
Rotate the flush valve anti clockwise
to release it from the base.
Tab
Pull
Outlet
Hole
Outlet
Valve
9. the flush valve assembly
including the securing tab up until
the valve and tab can be held.
Separate the tab from the flush
valve by pulling it upwards.
Remove the tab from the tank.
Pull
Tab
Flush Valve
10. Lift and rotate the flush valve until
it is horizontal.
11. Rotate the base of the flush valve
out through the access panel.
12. To replace the flush valve, follow this instruction in reverse order.

Trouble Shooting Procedures
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Flush valve adjustment
Adjustment
Switch
Float
Full Flush:
Adjust the position of the switch on
llufehtyravotedisevlaveht flush
.emulov
Reduced Flush:
adjust the position of the float to
vary the reduced flush .evlav
itnawercsehtnruT clockwise to reduce the
.levelretaw
Turn the screw clockwise to increase the
.levelretaw
Inlet
Valve
Float
Screw
Inlet valve adjustment
Symptoms Probable Causes Recommended Action
Tank not filling
The shut off valve is closed
The inlet valve float is stuck
The inlet valve is filter is
blocked by debris
Open the shut off valve
Adjust the inlet valve to an appropriate
position
Remove the inlet valve and wash out the
filter
Flush not operating
Adjust the flush rods
Ensure the flush valve legs are installed
in the correct orientation and connected
correctly
Float level of the inlet valve
requires adjusting
Water level too high
or low
The flush rods require
adjusting
Flush valve legs are
disconnected
Tank does not stop
filling
The inlet valve float is stuck
The outlet valve is not sealing
correctly
Adjust the inlet valve float level
Adjust the inlet valve to an appropriate
position
Uninstall the outlet valve, check the
seal, replace if warn. Remove any
debris and reinstall.