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87100NZ v1.12 09.22 WR FlushMaster
Cleaning
Keep the two slot openings in the face of the sensor clear of dirt.
Never clean the case with strong or abrasive cleaners.
Wipe with a soft cloth, warm water and dish washing liquid.
Never hose or spray any part of the flushing system.
Where the Zenith FlushMaster is powered by a long life lithium
battery a life of up to three years can be anticipated depending on
frequency of activation.
However to avoid the inconvenience associated with any
malfunction of the flushing system, it is recommended that both
the battery and the latching valve diaphragm be replaced annually.
Where the optional power pack is fitted, the power must be
turned off at the power point before any form of maintenance is
attempted.
Battery Replacement
Remove protective cover from sensor housing, locate battery
holder.
Remove cover from battery holder and remove existing battery.
Replace existing battery with lithium cell type CRP2 / 223A only
(Zenith product code 90098NZ).
Replace cover on battery holder and replace cover on sensor
housing.
Valve Diaphragm Replacement
Isolate water supply.
Remove fixing clip on top of latching valve coil by levering up clip
with screw driver and clicking back until clip releases from shaft.
Lift coil, spring clip and spacer from latching valve shaft.
Carefully undo the 4 screws retaining the valve housing. When
the last screw is about to be released, grip the valve body and top
section as it is spring loaded.
Carefully separate the top section containing the spring and
plunger from the lower body. The diaphragm should now be
visible. Lift it out of position.
Remove the centre plastic piece from the rubber diaphragm. Fit
the new diaphragm to the plastic centre. Replace it in the same
orientation.
Re-assemble in the reverse of above. Note the position of all parts
in the diaphragm for correct assembly. To order, quote Zenith part
number 90279NZ diaphragm Kit.
Replacement
rubber for
diaphragm
Maintenance
