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Cont ...
7 MAINTENANCE
7.11
Pressure vessel:
The pressure vessel should be checked once every
12 months to have its air charge checked or replenished, this should be carried
out as follows:-
a) Isolate pump electrically.
b) Remove the front cover.
c) Isolate the water supply by closing the appropriate isolating valves.
d) Release system water pressure by opening an outlet on the system.
e) Check air charge at Schrader valve (Fig. 14) using a tyre pressure gauge.
f) Replenish air charge by injecting air into the vessel via the Schrader valve
using a car or bicycle pump (Fig. 14).
g) Close all system outlets, open inlet and outlet isolating valves.
h) After maintenance is completed refer to Section 6 - Commissioning for
instructions on re-starting pump.
7.12
Water scale:
In areas of hard water, scale can cause the mechanical pump seal
to stick if left without use for long periods. The pump must be run for at least
5 minutes every four weeks to “exercise” all working parts. See Section 8 -
Technical Specification for note on water temperature.
7.13
Water quality:
The iBoost has been manufactured to the highest standard from
WRAS approved material (WRAS certification pending).
As with any stored volume of water; in order to ensure that the water remains
fit for use the water temperature needs to remain below 20
o
C. The quality of
stored water will deteriorate with time and temperature. Bacterial growth is
dependent on the water temperature, growth rates will be higher when the
conditions are warm.
If the water remains unused for long periods of time, the tank should be drained
and flushed through. The tank should be cleaned on an annual basis to protect
against bacterial growth. The system must be maintained in line with current
Health & Safety regulations.
Fig. 14
Model
Air Charge
bar (psi)
All other
models
2.8 (41)
Schrader valve
Pressure
vessel