4. WarranTy
4.1 General warranty
If within 1 (one) year of the invoice date
or commissioning date of a water heater
supplied by Lochinvar Ltd, following
verification, and at the sole discretion
of Lochinvar Ltd, an assembly or part
(with exclusion of the tank) proves to be
defective or fails to function correctly due
to manufacturing and/or material defects,
then Lochinvar Ltd shall repair or replace
this assembly or part.
4.2 Tank warranty
If within 3 (three) years of the invoice
date or commissioning date of a water
heater supplied by Lochinvar Ltd,
following verification, and at the sole
discretion of Lochinvar Ltd, the enamel-
lined steel tank proves to be leaking
due to rust or corrosion occurring on the
water side, then Lochinvar Ltd shall offer
to replace the defective water heater with
an entirely new water heater of equiva
-
lent size and quality The warranty period
given on the replacement water heater
shall be equal to the remaining warranty
period of the original water heater that
was supplied.
4.3 Conditions for installation
and use
The warranty set out in articles 1 and
2 will apply solely under the following
conditions:
a. The water heater is installed under
strict adherence to Lochinvar Ltd
installation instructions for the specific
model, and must be in accordance
with the relevant requirements of the
Gas Safety Regulations, Building
Regulations, I.E.E. Regulations and
the byelaws of the local water underta
-
king. The installation should also be in
accordance with any relevant require
-
ments of the local gas distributor and
local authority.
b. The water heater remains installed at
the original site of installation.
c. The water heater is used exclusively
with drinking water, which at all times
can freely circulate (a separately
installed heat exchanger is mandatory
for heating saline water or corrosive
water).
d. The tank is safeguarded against harm
-
ful scaling and lime build-up by means
of periodic maintenance.
e. The water temperatures in the heater
do not exceed the maximum setting of
the thermostats, which form a part of
the water heater.
f. The water pressure and/or heat load
do not exceed the maximum values
stated on the water heater rating plate.
g. The water heater is installed in a non-
corrosive atmosphere or environment.
h. The water heater is connected to a
protected cold supply arrangement,
which is: approved by the relevant
authority; with sufficient capacity for
this purpose; supplying a pressure
no greater than the working pressure
stated on the water heater; and where
applicable by a likewise approved
temperature and pressure relief valve,
fitted in accordance with installation
instructions of Lochinvar Ltd applying
to the specific model of water heater,
and further in compliance with Building
Regulations, local authority installation
byelaws and the Water Supply (Water
Fittings) Regulations 1999 .
i. The water heater is at all times fitted
with cathodic protection. If sacrificial
anodes are used for this and these
anodes have reduced in size by more
than 40% at any point along their
length or if they are severely pitted,
new anodes should be fitted. Parti
-
cular attention should be paid to the
ends of each anode to ensure exces
-
sive localized depletion has not occur
-
red. Where anodes are covered with
particles they should be cleaned; for
reference, when new, the anode has a
diameter of 21 mm. When power ano
-
des are used, it is important to ensure
that they continue to work properly.
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