Inhibitor; Open (Vented) Water System; Domestic Hot Water Cylinder; Domestic Hot Water System - Unvented - Vaillant ecoMAX pro Instructions For Use Installation And Servicing
Wall hung condensing boilers for traditional open vented systems
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6 Water system
6.5 Inhibitor
In the case of an existing installation, it is ESSENTIAL
that prior to installing the new boiler the system is
thoroughly flushed. For optimum performance after
installation of a new system, the boiler and its associated
central heating system should also be flushed. Flushing
should be carried out in accordance with BS7593: 1992
using a cleanser such as Sentinel X300 or X400, or
Fernox Superfloc.
For long-term corrosion protection, after flushing, an
inhibitor suitable for stainless steel heat exchangers
should be used, refer to the current issue of BS 5449
and BS 7593 on the use of inhibitors in central heating
systems. Examples are Sentinel X100 and Fernox.
IMPORTANT: It is ESSENTIAL that the cleanser is fully
removed from the system after flushing and before
adding inhibitor. Take care to ensure that all low points in
the system are fully drained.
For all systems follow the manufacture's instructions, but
where new radiators are fitted do not leave the cleanser
in the system for longer than 24 hours.
For optimum performance the boiler and its associated
central heating system should be flushed in accordance
with BS7593: 1992 using a cleanser.
For advice on the application of system cleansers and
inhibitors contact either;
Fernox, Alpha-Fry Technologies
Tandem House
Marlow Way
Beddington Farm Road
Croydon CR0 4XS
Tel: 0870 601 5000
Fernox technical help line
01799 550811
or:
Sentinel, GE Betz
Widnes
Cheshire, WA8 8UD
Tel: 0151 420 9595.
6.6 Open (Vented) Water System
The boiler must be supplied from an unrestricted water
supply taken from a feed and expansion cistern situated
at a maximum height of 27 metres (90ft) above the
boiler.
The cold feed must be 15mm minimum size.
The vent must rise continuously and be unrestricted.
It is important that the relative positions of the pump, cold
feed and open vent are as shown in fig 6.3.
6.7 Domestic Hot Water Cylinder
CAUTION!
Single feed indirect cylinders are not suitable.
The domestic hot water cylinder must be of the
double feed fully indirect coil type.
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6.8 Domestic Hot Water System - unvented
General - All domestic hot water circuits, connections,
fittings must be in accordance with the relevant
standards and water supply regulations.
For GB: Guidance G17 to G24 and recommendation R17
to R24 of the Water Regulations Guide.
For IE: The current edition of I.S.813 "Domestic Gas
Installations". Where a storage system will not have a
vent to atmosphere the installation must comply with the
building regulations and local Water Company bylaws,
see also the current issue of BS5546 and BS6700.
If fitting to an existing system the local authority should
be informed.
NOTE:
ecoMAX pro boilers are not suitable for use
with Vaillant VANTAGE unvented cylinders and
MUST not be used in connection with these
cylinders.
6.9 Sealed water Systems
The installation must comply with the appropriate
requirements of the current issue of BS4814, BS5449,
BS6759, BS6798 and BS7074 Part 1 and 2. For IE your
attention is drawn to the current edition of IS 813.
See fig 6.4 for a suggested layout.
Fig 6.3
Instructions for Use, Installation and Servicing ecoMAX pro
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