Owner's manual

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MAINTENANCE
WARNINGS:
 Care should be taken to protect pump from frost and freezing,
particularly when located in a loft installation.
 Pump Location
If possible site the pump in a location where in the unlikely event of a
water leak, any spillage is contained or routed to avoid electrics or
areas sensitive to water damage.
1. No routine maintenance is required, but provision should be made
for easy access to the pump to allow repairs due to normal wear and
tear.
2. Disconnect electrical supply before working on pump.
3. Turn off water supplies to the pump and release pressure by opening water outlets
before attempting maintenance.
4. When the installation is fitted with inline strainers (not supplied with kit), these may
require periodical cleaning. The frequency of this operation is dependent upon
installation conditions.
5. As water is heated scale deposits are released in areas of hard water (usually south
of a line between the Wash and Bristol Channel), scale can cause the mechanical
seal to stick if left without use for long periods. We recommend the pump is run for at
least 5 minutes every four weeks to “exercise” all working parts. Run on cool water.
See technical specification for note on water temperature. This particularly applies to
guest bathrooms used infrequently.
6. The pressure vessel air pre-charge does not require routine maintenance. Should
ever the need arise for the vessel to have its air pre-charge checked or replenished, it
should be carried out as follows: -
a) Isolate pump electrically.
b) Isolate hot and cold water supplies via the pump isolating valve located in the
pipework (see pump connections section).
c) Release system water pressure by opening system outlets (tap) hot and cold.
d) Check air pre-charge at Schrader valve (Fig. 20) using a tyre pressure gauge.
Model Vessel Pressure
kPa bar psi
All Models 150 1.5 21.75