6
AP3/05, AP3/10, AP3/15 Installation Instructions
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A sacrificial magnesium anode is fitted to the vessel to provide anti-
corrosion protection for the vessel and element. Gradual erosion of the
anode will occur depending upon local conditions and, in extreme cases,
conditions may cause rapid erosion resulting in particles being deposited as
a residue or emitted from the heater. The Aquapoint should not, therefore,
be used in critical applications where water quality is paramount. Regular
preventive maintenance inspections are vital to achieve optimum
performance and durability of the appliance. The condition of the anode
should be checked regularly by an authorised Zip service provider as part
of the preventive maintenance programme.
If the hot water system is not used for two weeks or more, it is
recommended that a hot tap be turned on for several minutes at a sink,
basin or bath, but not at a dishwasher, clothes washer or other appliance
before returning to service.
Installation
Requirements
1. These instructions must be read and fully understood before commencing
the installation. If in doubt, or in need of further guidance, please call Zip
Customer Service on 0845 602 4533.
2. Zip Aquapoint unvented water heaters must be installed by a competent
installer, familiar with unvented electric water heaters.
3. Installations must comply fully with UK Water Regulations and any Local
Authority requirements.
4. The electrical installation including earthing and cross-bonding should comply
with the current IEE regulations and any Local Authority requirements.
5. The Zip Aquapoint is designed for connection direct to the incoming mains
water supply and accommodation must be made for the expanded water
that will occur with each heating cycle. Regulations permit expanded hot
water to be accommodated within the supply pipe work provided that no
check valve, stop valve with loose jumper or other fitting can prevent
reverse flow.
( See diagram 1 on page 8)
.
Where the expanded water cannot be accommodated in the pipe work and
the static water supply pressure is under 4 bar fit accessory pack AQ2
(expansion vessel and check valve). Where static water pressures are likely
to exceed 4 bar fit accessory pack AQ2 and AQ3 ( pressure reducing valve
and line strainer ).
( See diagrams 2 and 3 on page 8)
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