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4.4.2 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 are to be concealed
within the stud wall and not surface mounted.
• 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
• Additionally, as good practice, the system panel position, for the panel installer to run a
should in addition cut off the power supply cable to. This MUST be located so that it will
to both fans in the event of airflow failure. not easily be triggered by accident.
• The control box for this system must • The control panel supplier will also supply a
incorporate status indicator lights. suitable gas solenoid valve for installation
• The control box must also contain a in the oven supply pipe by the main
thermostat to control the LPHW in the fresh contractors Gas Safe registered (commercial
air intake. classification) engineer.
• 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’.

4.4.2 Gas Safety Check 30 May 2018