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Nestor Martin H11 Manual

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C07100DC023
60
COMMISSIONING
Commissioning should not be undertaken if the wind is abnormally high or blustery, nor should it be undertaken
by anyone without suitable experience, testing equipment and working knowledge of the relevant standards and
regulations.
The customers who will operate the stove are an essential component of any installation.
Ensuring they understand the operation of the stove, its controls and what to expect from the installation,
whether simple or complex, is probably the most important single aspects of commissioning. Someone who
understands never queries a satisfactory stove, but will tell you when something actually is wrong.
Pre Commissioning Checks
The installation should be inspected to ensure the work is complete and the workmanship satisfactory. The
commissioning engineer will be held responsible for any faults with the installation that would have been
apparent at the time of commissioning. No stove should be commissioned if any part of the installation does not
comply with the relevant standards and regulations.
The oil tank should be examined to confirm there is a supply of the correct grade of oil, that a filter and working
isolation valve is fitted. Having verified that the oil pipe work up to the stove is complete and that the fire valve is
closed, the tank isolation valve should be opened and the pipe work inspected for leaks. The pipe into the inlet of
the metering valve should be uncoupled, the fire valve opened and a minimum of one litre of oil collected into a
suitable receptacle. If dirt or water is present in this sample additional oil should be allowed through the pipe
work until it is free from contaminates. The fuel pipe work should be reassembled and the stove’s combustion
pressure testing point located.
If a boiler is fitted, all the control systems and valves should be set to allow for the system heating. The draught
stabilizer should be examined to ensure it opens and closes freely before lighting the stove following the lighting
instuctions relevant to the stove being commissioned.
Commissioning
Shortly after the stove is lit a stove air pressure reading should be taken and the pressure monitored at fifteen
minutes intervals to ensure the stove and the flue are operating safely with sufficient air. As the stove and flue
warm, the supply of air being induced into the burner will increase, and it will be possible to raise the stove’s
firing rate progressively until the stove is running at maximum output. The entire stove and flue should be
allowed to reach normal operating temperature but if becomes apparent that the stabilizer will have difficulty in
limiting the negative pressures within the stove, the burner should be extinguished and an additional stabilizer
should be fitted to the flue pipe.
These are illustrated in the flue draught and governing plate section.
Allow the stove to run at maximum output for at least thirty minutes and turn to minimum for a further fifteen
minutes. At minimum output the stabilizer will normally be shut and if needing to be open to achieve the correct
negative pressure within the stove it is likely further restriction of the flue will be necessary.
The low fire setting of the fuel metering valve has been set at the factory and should only be changed if the
reasons for doing so and the consequences understood; it must never be adjusted to overcome conditions.
… 61 …


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