Elecro Engineering CYGNET Aquatic Mode D'emploi page 7

Operating Instructions
Upon completion of the installation, run the water-circulating pump to
purge the system and heater of air (i.e. remove any trapped air in the
system and heater). TIP: You can encourage air out of the heater flow tube
by gently elevating the exit port of the heater when the pump is running.
The heater will only switch 'On' (red light indicator illuminated) when the
following criteria are met ie:
· Water circulating pump is 'On' delivering in excess of 1,000 litres /
hour (1m3/h or 220 UK gallons/hour)
· Required temperature is set to a higher value than the water
temperature.
Useful advice: To reduce running costs and speed up the heating process,
insulate the pond wherever possible.
Quick Function Test
Observe the main electricity meter when the heater is on (ie: red light 'On')
and then observe it again when the red light is off. The test should show
that the meter is recording more electricity being used by the heater when
the red light is 'On'.
It is impossible for an electric heater to waste energy, if it is
drawing power then that power will be turned into heat that will be
transferred to the water.
Accurate Function Test
If a more accurate test is required to confirm that your heater is delivering
the specified heat output, two electricity meter readings will need to be
taken from the properties main electricity meter, with an exact one hour
interval (ie: take one meter reading and then a second reading exactly one
hour later) then by subtracting the first reading from the second
reading the number of units (kilowatts / kW) consumed can be calculated.
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