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