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11
InstallatIon InstructIons
Things you should be aware of:
• before installing rainbank
®
please
read all instructions carefully as
failures caused by incorrect
installation are not covered under
warranty.
• rainbank
®
is designed to handle
clean water and should not be used
for any other purpose without specific
referral to Davey. the use of
rainbank
®
to pump flammable,
corrosive or other materials of a
hazardous nature will damage the
system and void the warranty.
• the pumping of abrasive materials
will damage the system and void the
warranty.
• Water freezing inside the rainbank
®
will damage the unit. locate your
rainbank
®
and pump so that they are
not susceptible to freezing.
• some insects such as small ants find
electrical devices attractive for
various reasons. If your controller or
pump is susceptible to insect
infestation you should implement a
suitable pest control plan.
•
limit mains water pressure to
900kPa.
• an inline ‘Y’ strainer between the
pump and the rainbank
®
controller is
recommended to stop foreign matter
entering the unit and damaging it.
• all pipe work and fittings should be
labelled in accordance with local
standards such as australian
standard as/nZs 3500. this standard
requires that all pipework containing
rainwater is marked with green
‘rainwater’ tape or stickers at 1
meter intervals and every outlet that
may deliver rainwater is to be
permanently signed with ‘rain Water’
signage or a green tap marked ‘rW’.
• ensure all wiring, plumbing and the
rainbank
®
unit are protected from
access by pets and/or children.
• Mains electrical connections and
checks must be made by a qualified
electrician and comply with applicable
local standards. the 5 volt float lead
connections need not be carried out
by a qualified electrician, but should
be done in compliance with applicable
standards.
• In accordance with as/nZs
60335.2.41 we are obliged to inform
you that this controller and any pump
controlled by it is not to be used by
children or infirm persons and must
not be used as a toy by children.
Type 1 installations. Above ground
tank and pump outside tank.
1. remove the priming plug on the
top of the pump and fill the casing
and suction line with water then refit
plug. If there is an isolation valve
fitted on the delivery pipe from the
rainwater tank (as recommended) this
needs to be opened.
If there is an air lock i.e. the pipe and
pump casing is not fully filled with water,
the pump may not draw water. If this is
the case you should repeat the priming
procedure. If the pump still does not draw
properly this may be a fault in the way
the delivery pipe is installed. the pump
should be slightly higher than the pipe
inlet and this should run up hill to the
pump at a slight but consistent slope so
that any air is expelled at the pump end as
the pump is primed.
2. hold down ‘manual override’ button
on the rainbank to operate pump to
clear trapped air. Make sure an outlet
(tap) is open so that air and water can be
dispelled. Make sure the mains water is
turned off until the pump is fully primed.
IMPORTANT
leaky joins can also cause a loss of
prime.
note: the pump must be below the float
switch.
Type 2 and 3 installations.
Submersible pumps inside tank.
provided the pump is sitting in sufficient
water the pump will self prime and push
air out of the taps and appliances that are
used at the other end. to let this air out
without causing damage it is important
that:
• all taps connected to the rainwater
system are turned on
• toilets connected to the system are
flushed so the cistern fills and any air
is cleared from the line.
prIMIng puMps
!
