Servicing; Annual Servicing; Changing Components - Benchmark Accolade ACA125 IND Design, Installation And Servicing Instructions

3.1 ANNUAL SERVICING

With the water supply turned off, remove the screen from
1 the strainer in the combination inlet valve and clean off
any detritus (dirt).
With the water supply turned off and the hot taps open,
2 check the expansion vessel charge pressure and top up as
necessary (1.5bar).
With the water supply turned on, open the temperature
relief valve and then expansion valve to check for
unrestricted discharge into tundish. Check valves for
3 freedom of movement and confirm that the water stops
and both valves reseat correctly. Check at a full bore
discharge from either valve that there is no back up or
discharges over the tundish.
Check that the correct outlet pressure is being maintained
by the pressure reducing valve by recording the presure
4
at a terminal fitting or the tapping provided on the
combination inlet valve.
Clean flow regulators (or restrictor/aerators) on each
5 terminal fitting tap/shower as applicable. Check for
correct flow rate at terminal fittings.
Visually inspect, checking for the presence of
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supplementary bonding and that it is being maintained.
Check correct rating and type of fuse is fitted on the
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electrical supply.
Check for the correct operation and temperature setting
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of the thermostats.
9 Check the operation of the motorised valves.
10 Check the operation of 'Switch' .
If necessary descale the heat exchangers immersion
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heaters in hard water areas.
SERVICING/MAINTENANCE
The Registered Installer is responsible for the safe installation and operation of the
system. He must also make his customer aware that periodic checks of the equipment
are required by the Building Regulations and essential for safety.
Maintenance and inspection periods will vary for many reasons. Gledhill Water Storage
Ltd recommend a maximum of 12 months between inspections to coincide with boiler
maintenance. Experience of local water conditions may indicate that more frequent
inspection is desirable, eg. when water is particularly hard, scale-forming or where
the water supply contains a high proportion of solids, eg. sand. For Maintenance see
the table above:
The above service / maintenance recommendations relate to the Accolade
unit only. Any service of the boiler/heating system should include checks on the
ballvalve/water level in the F & E cistern in OV systems or the air pressure in the primary
expansion vessel with the system pressure removed in SP systems.
Supplied By www.heating spares.co Tel. 0161 620 6677

3.0 SERVICING

3.2 CHANGING COMPONENTS

If it is necessary at any time to drain the storage
vessel either for system modifications or to replace
a component the appliance should be drained in
the following way.
Before draining open all hot taps in the system
then hold open the pressure and temperature
relief valve until water stops discharging into the
tundish.
Open the ball-o-fix isolation valve just before the
anti-vacuum valve and then open the drain cock
and immediately hold open the P &T relief valve
again. This must be held open until the cylinder
is completely drained.
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When the unit is re-filled ensure the ball-o-fix is left
in the closed position as well as the drain valve.
The KIWA Approvals for the Accolade
appliance are conditional on the specific
manufacturer/type of components fitted and
any replacements must be purchased direct from
Gledhill to ensure compatibility/continued safe
operation.
Free of charge replacements for any faulty
components are available from Gledhill during the
in-warranty period (normally 12 months).
However, if any component is damaged during
installation a new replacement must be ordered
and paid for.
After this, spares can be obtained direct from
Gledhill using the 'Speed Spares' service, or
through any of the larger plumbers merchants/
specialist heating spares suppliers.
Help and advice is also available from theTechnical
Helpline on 01253 474401.
However, all components are readily accessible
and can be changed quickly and easily by the
installer using common plumbing practice.
If it is necessary to replace any of the pumps fitted
A-CLASS
to the appliance the pump head (motor pack) only
should be removed as recommended by Grundfos.
Assuming it is within warranty this will be accepted
by a merchant as being covered by the Grundfos
national service exchange agreement, as long as
it is a complete pump i.e. alleged faulty motor
pack and new base is left with the merchant. It
is important when a pump has been replaced to
ensure that any air is adequately vented.
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A-CLASS