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ASSEmBLy AND INSTALLATIoN
4.3 Solenoid Safety Valve
The Solenoid Safety Valve is a safety device that will not allow gas to pass to the appliance if the
Power Fan Flue is not operating.
The Solenoid must be fitted into the Gas supply line to the appliance before the control valve.
It is important to install the Solenoid valve in the correct flow direction, as indicated on the Solenoid
valve. Incorrect fitting may result in gas leakage.
The cable from the Solenoid must be connected to the cable connections in the Power Fan Flue, see
section 7 for details.
4.4 condensation Trap (Important for External cold Temperatures)
If the flue gasses have to travel a long distance, it is recommended that a Condensation Trap is
installed, in the LOWEST POINT of the flue run. Condensation is caused by the flue gasses being
cooled down below the dew point, because of the long distance being travelled. It is recommended
that a Condensation trap is installed if the total flue run is over 20m' and the external temperature is
below -10°C.
The condensation Trap may take the form of a draining off pipe that can discharge the water to the
outside of the building, or drain into the waste water system of the building (in a similar method as a
Washing Machine). The Drain Pipe must always be positioned at the bottom of the Flue runs and the
drain pipe must run in downward direction with the drain pipe always being below the drain exit point
from the flue.
Additional condensation traps may be necessary in situations where the flue runs have a negative
gradient (run down hill). It is advisable to install a condensation trap for every instance of a negative
gradient. The drain point must be installed at the lowest point of the negative gradient run. An 8 mm
metallic pipe, with on/off tap at the end could be used as a draining pipe.
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