Flow Requirements - Elecro Engineering FLOW LINE Installation & Operating Manual

Flow Requirements

Your heater is factory set to accept input water flow entering on the left
and exiting on the right, this can be reversed by rotating the flow switch
180 degrees (ie: ½ turn, see fig 6)
WARNING! The flow switch paddle can be damaged when reversing the flow
direction if it is lifted by more than 5mm from its housing and turned with
force. If the flow switch has been rotated it is important to ensure that it is
finally locked in the correct orientation perpendicular (at right angles) to the
flow of water.
The flow rate of water into the heater must not exceed 17,000 litres per
hour (17m3/h) / 3,740 UK gallons/hour A higher flow rate will require the
installation of a bypass to prevent damage to the heater elements. The
heater will not operate unless the following minimum flow rates are
achieved ie:
1,000 litres / hour (1m3/h) / 220 UK gallons/hour for 2 ~ 6-kW heaters and
4,000 litres / hour (4m3/h) / 880 UK gallons/hour for 9 ~ 24-kW heaters.
6
To reverse flow: Loosen
cap and rotate flow switch
by 180 degrees as shown.
Always ensure the arrow
marked on the plastic flow
switch body is in the same
direction as the water flow
Factory set flow
www.elecro.co.uk
Flow
Optional reverse
flow
Fig 6.