Benchmark Accolade ACA125 IND Design, Installation And Servicing Instructions page 14

1.0 DESIGN
1.3 SYSTEM DETAILS
Taps and Shower Fittings
a. Ensure that all terminal fittings are suitable for mains pressure. Use aerated taps
whenever possible to prevent splashing.
b. Any type of shower mixing valve can be used as long as both the hot and cold
supplies are mains fed. However,all mains pressure systems are subject to dynamic
changes particularly when other hot and cold taps/showers are opened and closed,
which will cause changes in the water temperature at mixed water outlets such
as showers. For this reason and because these are now no more expensive than
a manual shower we strongly recommend the use of thermostatic showers with
this appliance.
The shower head provided must also be suitable for mains pressure supplies.
However, if it is proposed to use a 'whole body' or similar shower with a
number of high flow/pressure outlets please discuss with the Gledhill technical
department.
c. Note that the shower fittings must comply with the backflow prevention
requirements (Para 15, Schedule 2) of the Water Supply Regulations 1999.
d. A bidet can be supplied from the Accolade
over rim flushing type and incorporates a suitable air gap.
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Figure 2.2 Schematic diagram of typical secondary hot water circulation
1. Hot flow and return pipework must be insulated
2. All components must be suitable for use on domestic unvented hot water
Supplied By www.heating spares.co Tel. 0161 620 6677
A-CLASS appliance as long as it is of the
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storage systems
Dead leg volumes and secondary hot
water circulation
If the dead leg volume of the hot water draw-off
pipework is excessive and the delivery time for
hot water to be available at the tap is more than
60 seconds you may consider using:-
a. Trace heating such as the 'Raychem HWAT'
system. Please call Gledhill technical
department for further details.
OR
b. A secondary hot water circulation system
as shown schematically in figure 2.2.
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Page 14