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Ideal-Standard ALTO ECOTHERM A4740AA - Thermostatic Cartridge Replacement (A5637 AA)

Ideal-Standard ALTO ECOTHERM A4740AA
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11 THERMOSTATIC CARTRIDGE REPLACEMENT
This thermostatic cartridge is protected from
water borne debris by mesh lter screens.
These should be checked and cleaned before
contemplating replacing the cartridge.
To replace the thermostatic cartridge:
(REMEMBER TO TURN OFF WATER
SUPPLIES)
1. Unscrew dog point
screw and pull off
temperature
control handle.
2. Remove handle
insert screw.
3. Pull off the
handle insert.
4. To remove the temperature handle carrier (grey
plastic moulding), slide the black serrated lever
clockwise and pull off. This will expose the
thermostatic cartridge.
5. Unscrew cartridge with 24mm A/F spanner and
replace if necessary.
ENSURE PARTS ARE REASSEMBLED IN THE CORRECT
SEQUENCE.
To clean the screens remove the o-rings shown
The screens will then slide off. When clean replace the screens then the
o-rings which should be lightly greased with a WRAS approved silicone
grease (e.g. Klueber Unisilikon GBU2).
lter screens
o-rings
lubricate
before
retting
A 5637 AA

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