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D R A F T

4.3.2 Gas Safety Check
Under the Gas Safe / HSE regulations for the UK, • The control box will require an adjacent
it is a requirement that the gas supply to the 13A fused spur, to be provided by the main
ovens is interlocked in a failsafe manner with contractor. The control box will also have
the ventilation system. The DPG minimum spec cables feeding to it from the ceiling void
for this system requires that: above. These cables must be chased into
the wall or otherwise neatly covered and
• There must be detection of both the extract protected.
airflow and the fresh air duct airflow, such • The main site electrician should supply a
that if either of these do not register positive single flush mount back box at a nominal
airflow, a gas solenoid valve immediately height of 1800mm affl, for an emergency
cuts off the gas supply to the oven. stop button, and chased conduit either to
• Additionally, as good practice, the system above the ceiling, or to behind the control
should in addition cut off the power supply panel position, for the panel installer to run a
to both fans in the event of airflow failure. cable to. This MUST be located so that it will
• The control box for this system must not easily be triggered by accident.
incorporate status indicator lights. • The control panel supplier will also supply a
• The control box must also contain a suitable gas solenoid valve for installation in
thermostat to control the LPWH in the fresh the oven supply pipe by the main contractors
air intake. plumber.
• The control box must also contain at least • It is the main contractor’s responsibility to
one pair of additional contacts for interlinking supply and fit this system using only specialist
with fire alarm systems, etc, if required. suppliers approved by DPG.
NOTE: If a control box is installed that does not contain the
necessary thermostat and additional contacts, then these
will need to be provided separately in some form and this
should be priced as part of the project quotation. It will not
be accepted as an ‘extra’.

4.3.2 Gas Safety Check 3 February 2016