21
Checkvalves and Filters
Warning!
The DMV may contain hot water, so care must be taken when draining the
valve of any residual water. Isolate the supplies to the DMV and operate the control
panel to release pressure and to assist the draining of residual water.
Note!
The DMV have checkvalve and filter packs (cartridge assemblies) or
checkvalves and strainers fitted. These components can be removed for cleaning.
Inlet strainers can be flushed through under a jet of water to remove any lodged
particles.
Caution!
The checkvalves are not serviceable items, so any apparent wear or
damage will require their renewal.
Note!
Make sure all components are clean before refitting the ‘O’ seals. To assist in
refitting,
lightly wipe the ‘O’ seals with a
silicone-only based lubricant
.
Restore the hot and cold water supplies. Check that there are no water leaks.
Inlet adapter
Cartridge
assemblies
Checkvalve
Inlet strainer
Inlet adapter
Inlet adapter
Cartridge
assemblies
Checkvalve
Inlet strainer
Inlet adapter
1
2
3
4
5