Honeywell VTL120 Installation Instruction

www.energysavingtrust.org.uk

1. Notes and Safety instructions

These products are approved to the
European CEN standard EN215, which
supersedes BS 6284.
Whilst Honeywell takes all reasonable practical
steps to design and manufacture its products to
comply with the requirements of the Health and
Safety at Work Act 1974 all products must be
properly used and purchasers are reminded that
their obligations under the Act are to ensure that
the installation and operation of such products
at a place of work should be safe and without
risk to health.
Honeywell reserves the right at any time and
without notice to change any product or any
information contained in this publication.

1.2 Check list

• Check all connections for securing and leakes.
• Use clean pipework, free from swarf.
• Consider the use of an automatic by-pass
valve (e.g. Honeywell DU145) to ensure the
specification is adherded to.
• Don't allow heat from blow torch onto body.
• Don't install the valve in a position which is
subject to draughts, sun radiation or behind
curtains.
• Don't overtighten the head/body connection,
as the insulating sleeve may become damaged.

2. Location

The thermostat can be fitted in any orientation
with the flow through the body in either
direction.
Reversible Flow Radiator Thermostat
Installation Instruction

3. Technical Data

Maximum working pressure 10 bar (140 psi)
Closing time
To ensure that the valve will thermostatically
close the differential pressure must not
exceed 1.0 bar.
Maximum differential pressure to ensure
reliable and quiet operation is 0.2 bar.

4. Component parts

1 Wheelhead
2 Decorators Cap
3 Valve body
4 Tail piece
5 Olive
6 Nut
7 Lockshield valve
7

5. Installation

5.1 Fitting - valve connections

1. Fit the connection fittings to the valve.
2. Cut copper tube to entry depth of 10 mm.
VTL120
20 minutes
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