Certikin MB20S, Operating, Installation And Servicing Instructions

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2.0 Requirements
9
Genie S
2.8 GAS SUPPLY
An existing meter and pipework should be checked,
preferably by the Gas Supplier, to ensure that they
are adequate to deal with the rate of gas supply
required.
Supply pipes should be sized to suit the installa-
tion and obtain a working pressure of 20 mbar (for
natural gas), 37 mbar (for propane) and 29 mbar (for
butane). Installation pipes should be fi tted in accord-
ance with BS.6891.
2.9 GAS CONVERSION
This heater is supplied setup for Natural Gas (G20)
It can be converted to LPG by the addition of an ori-
fi ce which is supplied with the heater
(see 1.0 for the
setup data & 4.4 for conversion instructions).
2.10 FLUEING
Only fl ue components specifi ed by the manufacturer
should be used with these appliances. Detailed
recommendations for fl ueing are given in “BS.5440-
2 Flueing and ventilation for gas appliances of rated
input not exceeding 70kW”. The following notes are
intended for general guidance:
1. Be aware of the plume from the fl ue and the
wetting eff ect it can have to adjacent property
(refer to 3.2 & 3.3 for advice).
2. The fl ue can be taken upwards, left, right or to
the rear of the appliance, but never downwards.
3. This heater is supplied separate to the chosen
fl ue set. It can be fi tted with up to 20 metres
equivalent length of concentric fl ue
(see 3.0 to
3.6 for advice and parts selection).
WARNING
It is absolutely ESSENTIAL to ensure in practice,
that the products of combustion discharging from the
terminal cannot re-enter the building, or any other
adjacent building, through ventilators, windows,
doors, other sources of natural air infi ltration or
forced ventilation/air conditioning.
If this should occur, the appliance MUST be
turned OFF IMMEDIATELY and a Gas Safe
engineer consulted.
2.11 AIR SUPPLY
It is NOT necessary to have a purpose provided air
vent in the room or internal space in which the boiler
is installed. Where the boiler is installed in a cup-
board or compartment
no air vents are required.
However, it is recommended that the space is venti-
lated to provide air circulation around the heater.
2.12 OUTDOOR HEATERS
This heaters is suitable for outdoor installation, when
equipped with the approved terminal.
WARNING
Please note the following advise when locating a
heater outdoors:
• Do not locate this heater in an area where water
sprinklers, or other devices, may cause water to
spray through the cabinet openings and into the
inside of the heater.
• Do not locate this heater directly below roofi ng
overhangs (even guttered roofs) where there is a
potential for large fl ows of water to pour directly
onto the top of the heater.
Failure to follow the advice above could cause heavy in-
ternal rusting or damage some electrical components,
and this would void the warranty.
It is recommended that periodically the casing is
cleaned and sprayed with WD40 or similar liquid, and
any exposed threads are lightly coated in grease.