Thermostatic Cartridge Replacement; A4740Aa, A4741Aa, A6385Aa - Ideal-Standard ALTO ECOTHERM A4740AA Installation Instructions Manual

11

THERMOSTATIC CARTRIDGE REPLACEMENT

A 4740 AA, A4741 AA & A 6385 AA
This thermostatic cartridge is protected from
water borne debris by mesh filter screens.
These should be checked and cleaned before
contemplating replacing the cartridge.
To replace the thermostatic cartridge:
(REMEMBER TO TURN OFF WATER
SUPPLIES)
1. Prise out the index button.
2. Remove handle screw.
3. Pull off the temperature control handle.
4
+
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).
1
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.
14
3
2
24
5
filter screens
o-rings
lubricate
before
refitting