Introduction; Important Notes; Basic Operation Of The Electromax - Heatrae Sadia ELECTROMAX Installation & Servicing Instructions Manual

1.0 Introduction

1.1 Important Notes

The Electromax must be installed in accordance
with the manufacturer's instructions and all
relevant regulations in force at the time of
installation.
This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities, or
lack of knowledge and experience, unless they
have been given supervision or instruction
concerning the use of the appliance by a
person responsible for their safety.
The Electromax Domestic Hot Water Cylinder
is of the UNVENTED type. Its installation is
subject to Building Regulation G3 (England
and Wales), Technical Standard P3 (Scotland)
or Building Regulation P5 (Northern Ireland).
Installation must be carried out by a competent
person.
The Electromax should be installed and
maintained by a competent person. Please
read and understand these instructions
before installing the Electromax. Following
installation and commissioning the operation
of the Electromax, the central heating system
and associated controls should be explained
to the customer and these instructions left
with them for future reference.
The Electromax electric heating boiler must
be installed into a sealed (pressurised)
primary system. Following installation of the
primary system the system should be flushed
in accordance with BS 7593 and an inhibitor
added.
The Electromax Domestic Hot Water cylinder is
directly heated by means of electric immersion
heaters. The electric central heating boiler
although housed in the same casing operates
completely independently to the cylinder. It is
strongly recommended that the water heating
is done by means of an Off-Peak electrical
supply.
The use of an Off-Peak tariff that provides at
least three off peak electricity periods, such
as Economy 10, is recommended. Where
possible the central heating "on" periods
should be programmed to coincide with the
off peak electricity periods available during
the day. This will ensure maximum economy of
the system. Refer to Table 2, Page 20 "Tariff
Guide" for information on the off peak periods
available from various electricity providers.
The Electromax does not contain any
substances harmful to health; it does not
contain any asbestos. Small quantities of
adhesives and sealants used in the manufacture
of the product are cured and present no known
hazards.

1.2 Basic operation of the Electromax

The Electromax is an integrated electric flow
boiler and direct electrically heated unvented
domestic water heating cylinder.
The domestic hot water is preferentially
heated by an Off Peak electricity supply via an
immersion heater that is specially designed to
heat virtually the complete cylinder capacity. A
"Boost" immersion heater is also provided to
allow a smaller quantity of water to be heated
should the stored hot water be fully used during
the day. The cylinder is factory insulated with a
low heat loss expanded polyurethane foam.
The electric flow boiler must be installed
into a sealed (pressurised) primary system.
It is suitable for conventional radiator based
central heating systems & underfloor heating
systems when using underfloor controls and
is supplied fitted with all necessary primary
sealed system functional and safety controls,
including the circulating pump and primary
expansion vessel. The boiler automatically
responds to lower central heating loads by
reducing (modulating) the boiler output which
Installation & Servicing Instructions 3