PowerFlow ERS MINI, Инструкция по установке и эксплуатации, Страница: 18 / 20

10.3 Adjusting the existing heating system
IMPORTANT:
For use with immersion heaters where hot water is currently heated by gas or oil boilers :
All default settings are optimised for installations containing gas or oil boilers.
To maximise savings, it is advised to re - time the boilers domestic hot water timer to come on after sunset
to allow the E.R.S MINI to heat or pre - heat the hot water. This will allow maximum energy capture and
lead to maximum savings.
IMPORTANT:
For use with immersion heaters where this is the only method of heating the water tank.
If the water is currently heated using the immersion element, when solar generation is low, there will not
be enough export energy to heat the water tank fully. In this instance there must be an alternative
method of over riding the immersion element automatically, once per week, in order to eliminate the risk
off legionella. See page 4 for further information.
IMPORTANT: ERS MINI does not have the ability to be over ridden in this way and is therefore not suita-
ble for this application. It is advised to use the ERS PRO product with a connected external timer so as this
essential override function can be performed.
Question Answer
ERS MINI does not
appear to be heating
the water, The LED
display illuminates 6
bars and then shows
LOAD OFF
The immersion switch next to the hot water tank must be left in the ON position.
Power will only be sent to the immersion heater when export energy is available.
Ensure there is enough export energy. ERS will not start operation until 200 watts
of export is available.
Ensure the water is not already hot. i.e. heated by another source. Re - time the
boiler to heat water in the evening rather than the morning. This will give ERS
opportunity during the day to heat or pre heat the water. This will ensure maxi-
mum savings are achieved.
ERS appears to be run-
ning the heating load
even when there is no
export.
Check that the current clamp has not been installed back to front. The label on
the clamp must be facing the electricity meter, i.e. the incoming grid supply.
Check the current clamp has not been incorrectly connected, refer to section 7.2
Check that the current clamp has not been installed in an incorrect location. Refer
to section 10.2 for testing procedure.
ERS does not switch
ON?
Ensure both the MCB (trip switch) supplying the ERS and the 20A double pole
isolator is in the ON position.
If all of the above is correct, contact PowerFlow.
How does the manual
boost function work?
Pressing BOOST ON will override ERS at any time and switch the heating device
on to full. A countdown timer of 90 minutes will start . After the timed period has
completed, ERS will revert to normal operation.
Where can I find more
information Please visit www.powerflowenergy.com for more service information
10.4 Troubleshooting
17