RWC Anti Legionella Installation And Maintenance Instructions Manual

Reliance Worldwide Corporation (UK) Ltd

Worcester Road,

Evesham,

Worcester,

WR11 4RA

Tel: [phone]

Fax: [phone]

www.rwc.co.uk

Installation and Maintenance Instructions

Anti Legionella Valve

Reliance Worldwide Corporation (UK) Ltd. reserves the right to make changes to the product which may affect the accuracy of information contained in this

leaflet.

ZINS100005_001_08-15

Contents

Reliance Worldwide Corporation (UK) Ltd........2

Specification and Dimensions...........................3

Installation Guidance.........................................4

5. Ensure that the isolating valve is
in the open position then turn on the
water supply and commission the
system.

Maintenance

Maintenance......................................................6

If for some reason it is necessary
to remove the expansion vessel
for service or replacement the anti
legionella valve helps to make this
quick and easy.

1. Isolate the expansion vessel from
the system using the integral
isolating valve

2. Making sure that you have a
suitable collection vessel to hand remove the plastic test
plug from the port directly opposite the isolating valve to
drain the residual water from the vessel

3. After draining replace the test plug,
service or replace the vessel and open
up the isolating valve to return the
vessel to service.

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Reliance Worldwide Corporation (UK) Ltd

3. Mount the vessel vertically with the
connections at the bottom using
suitable fixings and a strap type
bracket:

5 litre vessel BRKT240021
8 litre vessel BRKT240022
12, 18, 24 litre BRKT240050

Note : Expansion vessels should
always be mounted in vertically
with the connections at the bottom
to avoid the possibility of sediment
and debris being deposited inside the membrane and
providing a possible breeding ground for bacteria such as
Legionella.

For more information refer to the WRAS website and follow
this link https://www.wras.co.uk/consumers/resources/
interpretations_and_advice/installation/i20/

4. Connect the water supply so that
water from the supply enters one end
of the tee and the water that feeds the
system exits from the other side of the
tee.

Reliance Worldwide Corporation (UK) Ltd are part of the
Australian based group of companies collectively known as
Reliance Worldwide Corporation, with the UK brand known as
Reliance Water Controls.

Reliance Worldwide Corporation (UK) Ltd is a specialist in the
design, distribution and technical support for temperature and
flow controls.

With group offices and manufacturing plants throughout the
world RWC offers a wealth of knowledge and expertise which
is reflected throughout our products. Being part of many
specialised trade associations and having our own UKAS
accredited laboratory, makes us at the forefront of any new
regulations or changes which impact the industry, and allows
for continuous product development and innovation, within our
specialised product area.

Our core product range is related to thermostatic control, with
the manufacturing undertaken at our head office in Brisbane
Australia, we have an extensive range of thermostatic mixing
valves, shower control valves, and taps all which use the
same high quality technology to control the temperature of
water, within this range we have different valves to suit various
applications and working parameters, including both TMV2 and
TMV3 approved controls.

RWC, are market leaders of OEM controls with a complete
range of safety valves for use in G3 unvented systems and
a wide range of Underfloor heating controls (UFH) to allow
for safe distribution of hot water, throughout a property. This
range includes; thermostatic control valves for safe hot water
temperatures, manifolds to enable even distribution, complete
UFH kits to allow ease of installation & commissioning, and
a range of modern and stylish programmers to complement
these controls.

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Description

Installation

The Reliance anti legionella valve is designed to be connected
to a Reliance (Aquasystems) potable water expansion vessel
with a ¾” connection. It is designed to divert a proportion of the

water that is owing through a system into the vessel to cause

turbulence and encourage an exchange of water within it.

Specication

Nominal size DN20
Max. inlet temp. 30°C
Medium Potable Water

Dimensions (Vessel Supplied Separately)

Before installing the anti legionella valve ensure that the water
system has been flushed and is free from debris and that the
system pressures and temperatures are within the working
parameters of the valve.

To install the anti legionella valve onto a vessel follow these
steps.

1. First insert the paddle retaining
tube into the vessel connection as
shown. This is the small plastic
tube with a cut down the side.
To insert it you squeeze the tube
together and push it into the vessel
connection and then let it spring
back into place.

2. Taking
care not to damage the paddle or
the paddle retaining clip, screw
the anti legionella valve onto the
expansion vessel and tighten up
with a spanner. Note the valve
includes a rubber seat so extra
washers and PTFE tape are not
needed.

2. Connect the ¾” FBSP tee piece
onto the anti legionella valve
and tighten with a spanner, the

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connection is sealed by an oring so
extra washers and PTFE tape are
not needed. The tee piece remains

80 100

Dimensions in mm unless otherwise stated.

3

rotatable through 360° when
tightened.

4