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Description
RSHG chimney fans are located on the top of the chimney and provide a
controllable negative pressure in the flue and chimney.
A fail-safe system is fitted in the fan, which automatically measures
the velocity of the flue gases. Only when the velocity exceeds the
preset and safe level can the gas appliance be used. The fail-sage
system prevents any spillage from the gas appliance as well as any leaks
of CO and other poisonous gases.
The fail-safe system complies with BS 5440: 1990 part 1 and BS 6644:
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The fans guarantee optimum chimney draught irrespective of the
placing, dimensions or height of the chimney which is beneficial to new
or existing installations.
Construction
RSHG chimney fans give a horizontal discharge and can withstand flue gas temperatures up
to 200°C at the flue exit or chimney top.
RSHG chimney fans are constructed of corrosion resistant cast aluminium
and are designed to work reliably in a hot and corrosive environment
year after year.
The fans are supplied with an axial vane of stainless steel and a mesh
safety guard covering the horizontal discharge. All fans are hinged,
providing easy access for service and maintenance.
The fans are fitted with an entirely closed, asynchronous motor with
ball bearings sealed for life. The motor is specifically constructed to
provide reliable operation at a high temperature. It is made to
international classifications IP54 (protection class) and F
(insulation).
The motor is located inside the motor housing and thus separated from
the flue gases. The electrical connection is provided by a heat
resistant silicone cable withstanding 200°C.
The fans are supplied with a 30 days money back guarantee, and a 2 year
warranty.
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