Appliance Installation; Recommendations Before Mounting; Domestic Hot Water Circuit Design; Heating Circuit Design - Saunier Duval ThemaPLUS CONDENS F 30 E Instructions For Use Installation And Servicing

- The appropriate Buildings Regulations
either The Building Regulations, The
Building Regulations (Scotland), The
Building Regulations (Northern Ireland).
- The Water Fittings Regulations or
Water byelaws in Scotland.
- The Health and Safety at Work Act,
Control of Substances Hazardous to
Health (COSHH).
- The Current I.E.E. Wiring Regulations.
Where no specific instructions are given,
reference should be made to the relevant
British Standard Code of Practice.
In IE, the installation must be carried out
by a competent person and installed in
accordance with the current edition of
I.S.813 «Domestic Gas Installations»,
the current Building Regulations and
reference should be made to the current
ETCI rules for Electrical Installation.
In GB the following Codes of Practice
apply: BS4814, BS6798, BS5440 Part 1
and 2, BS5546 Part 1, BS5449, BS6891,
BS6700, BS7074 Part 1 and 2, BS7593,
BS7671.
In IE: I.S.813, BS5546, BS 5449, BS
7074, BS 7593.
Where no British Standard exists,
materials and equipment should be fit
for their purpose and of suitable quality
and workmanship. The installation of
this appliance must be carried out by
a competent person in accordance
the rules in force in the countries of
destination. Manufacturer's instructions
must not be taken as overriding statutory
requirements.
If the appliance is to be installed in a
timber frame building it should be fitted
in accordance with the Institute of Gas
Engineers document IGE/UP/7/1998. If
in doubt seek advice from the local gas
undertaking or Saunier Duval.

5 Appliance installation

All the dimensions in this chapter are
expressed in mm.
5.1 Recommendations before
mounting

5.1.1 Domestic hot water circuit design

The circuit should be designed to avoid
any unnecessary flow losses (decrease
the number of elbows).
The boiler will operate with a minimum
supply pressure but with a low flow.
Optimum performance will be achieved
with a pressure of 1 bar.

5.1.2 Heating circuit design

The ThemaPLUS CONDENS boilers can
be used for any kind of installation: serial
or derivated double tube, single tube, hot
floor, etc...
Heating surfaces can be made up with
heaters, convectors or unit heaters.
Warning: We advise you to add an
inhibitor to the heating circuit water
(according to the manufacturer's
recommendations) to avoid gas production
and oxide formation.
The pipework sections should be fixed by
using the following flow/pressure curve
(see chapter "Heating circuit adjustment").
The system will be calculated according
to the flow corresponding to the power
that is really required without taking into
account the maximum power that the
boiler can supply. Nevertheless, we advise
you to have a flow big enough so that the
temperature difference between outgoing
and return is under or equal to 20°C. The
minimum flow rate is indicated in the
chapter "Technical Data" at the end of this
instruction manual.
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