Water Quality And Treatment - andrews ECOflo EC230/600 Installation Manual, Operation And Maintenance Manual

WATER QUALITY AND TREATMENT

Where extreme conditions of water hardness exist, scale
can form in any water heating equipment, especially when
the heater is working under conditions of constant heavy
demand and at high temperatures.
In hard water areas, scale formation can occur in hot
water systems and hot water heaters. The higher the
temperature and volume of water used, the more
problematic the scale build-up can be. Water treatment is
normally recommended when the hardness reaches 100
– 150ppm (7 – 10 degrees Clark) and above. This
problem can be minimised by reducing the water
temperature in the heater and by fitting suitable water
pre-treatment equipment.
When installing Andrews Water Heaters in hard
water areas we would recommend that a water
treatment specialist is consulted.
Fig. 9
INSTALLATION • SECTION 3
Each Andrews ECOflo Water Heater includes two factory
fitted Correx™ Powered Anodes as standard. These
anodes do not need maintenance or replacement.
The potentiostat which regulates the current to the
Correx™ anode features an indicator light which shows
green to indicate the correct function and red to indicate
a malfunction. The anodes and potentiostat are available
as spare parts if required, (see page 52 for part numbers).
The ECOflo water heater is fitted with the Hydrojet Total
Performance System incorporated in the cold inlet nipple.
The system is designed to increase turbulence and
reduce sediment build-up, reduce thermal stacking and
increase delivery.
Tank Heater casing
All models now incorporate the new
Hydrojet system on cold inlet side
connections.This system ensures
water is directed onto the tank base
which minimises sediment build-up
from day one of installation.
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