Davey RainBank KRBCABS1/20 Bedienungsanleitung

WMTS-477:2016 Lic WM-022042

Installation and

Operating Instructions

Please pass these instructions on to the operator of this equipment.

For any assistance or after sales service contact your Davey Dealer. For help in locating your closest

dealer contact your appropriate Davey Support Centre listed on the back of this booklet.

Davey commenced in 1934 and today, as Davey Water Products,

manufactures and distributes a comprehensive range of products for

transfer, conservation, treatment and ltration of water.

Davey has a dominant market share in Australia and exports to more than

60 separate countries, servicing some of the toughest environmental and

climatic conditions on the globe.

Davey has maintained its commitment to research and development,

resulting in innovative new products servicing specic and emerging market

opportunities. Many of these products have received multiple awards

for innovation and excellence which have led to our induction into the

Manufacturing Hall of Fame in Victoria.

Davey maintains leadership in quality with an environmental focus by

holding ISO 9001 certication and ISO 14001 environmental standard.

Davey is today a wholly owned subsidiary of GUD, a ‘Top 200’ Australian

public company whose shares are listed on the Australian Stock Exchange.

Now more than ever “Depend on Davey” reects a business culture of

dependable, innovative water solutions when and where you need them,

supported by the best service and advice.

CONTENTS

About RainBank. The easy way to save water.......................................................4

How RainBank works...............................................................................................5

Before you start........................................................................................................6

Installation tips .........................................................................................................7

Components..............................................................................................................8

Pump inside tank......................................................................................................9

How to install RainBank......................................................................................... 11

Testing .....................................................................................................................14

Maintaining RainBank............................................................................................15

Important maintenance precautions.....................................................................15

Trouble shooting RainBank...................................................................................16

Davey Guarantee ....................................................................................................19

Contact Details .......................................................................................................20

100,000 Litres

ABOUT RAINBANK.

THE EASY WAY TO SAVE WATER

Congratulations on your purchase of a high quality Australian made Davey

RainBank automatic water controller. RainBank is patented and has been tted to

thousands of Australian homes.

• RainBank allows you to use water from your rainwater tank for your toilet,

washing machine or garden whenever there is water in the tank.

• If the tank water is exhausted RainBank automatically and seamlessly

switches you over to mains water.

• RainBank has an in-built “dual check valve” for low hazard back

ow prevention.

RainBank can save up to 40% of your home’s

usage of mains water, which could be up to

100,000 litres of water a year.

Your actual savings depend on your roof catchment area, rainfall and the size of

your tank.

RainBank may allow you to claim tank rebates (when installed on existing

homes). Check with your local water authority.

In most areas of Australia, having a RainBank and using rainwater for your toilet and

washing machine allows you to claim tank rebates paid by state governments and

some councils.

RainBank is energy efcient and cheap to run.

Because RainBank only works when it is needed it uses very little energy.

The daily power used to run a RainBank and pump system supplying two toilets

in a three person dwelling is equivalent to:

• A reverse cycle air conditioner for 3 minutes

• A clothes dryer for 3 minutes

• A washing machine for 10 minutes

• A TV or PC for 30 minutes

HOW RAINBANK WORKS

1. When there is demand for water from your toilet, washing machine or garden

tap, RainBank senses this demand and checks the level of water in the rainwater

tank. Note: demand must be greater than 1.5 litres per minute or mains water

will be delivered.

2. If there is rainwater in the tank RainBank switches on the pump. The pressure

of the pump is sufcient to overcome the pressure of the mains water inside

RainBank and this moves a plunger and allows the rainwater to ow.

Note: mains water pressure is not restricted.

3. When there is no longer a demand for water, RainBank detects that water has

ceased to move inside the pipes, switches off the pump and waits for another

water demand.

4. If RainBank senses a water demand and detects insufcient water in the

rainwater tank it will automatically allow the mains water to ow.

5. If there is a power failure during a demand for water, RainBank will automatically

supply the mains water as backup.

What are the advantages of RainBank over conventional air-gap systems?

• RainBank is totally hands off for your customer and needs no maintenance or

adjustment.

• RainBank is easy to install.

• RainBank does not require mains water to be re-pressurised and therefore

saves energy.

• RainBank is WaterMark approved – this means plumbing inspections will be

approved & your plumbers insurance should cover installation faults.

• RainBank will provide mains water as backup when:

- there is no rainwater

- there is no electricity to run pump

- the pump has been removed for servicing. Air-gap systems rely on pumps to

pressurise all water and do not function without them.

IMPORTANT:

• RainBank must be installed and serviced by a licensed plumber.

• Check with your local water authority on water restrictions when your

rainwater tank is connected to mains water.

• Do not enter a empty rainwater tank - they may contain hazardous gases.

• Before installing RainBank please read all instructions carefully as failures

caused by incorrect installation are not covered under warranty.

• If you are in doubt about any aspect of your RainBank kit’s suitability, check

with your Davey Dealer. For help in locating your closet dealer call the

appropriate Davey Customer Service Centre listed on the back of this booklet.

• RainBank is designed to handle clean rainwater and mains water. It should

not be used to interconnect as part of a bore water, dam water, grey water,

stormwater or recycled water system.

• The pumping of abrasive materials will damage the system and void the warranty.

• Mains electrical connections and checks must be made by a qualied

electrician and comply with applicable local standards. The 12 volt

connections need not be carried out by a qualied electrician, but should be

done in compliance with applicable standards.

• Secure all openings to the rainwater tank and make sure the wiring, plumbing

and the RainBank unit are protected from access by children and pets.

• 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 nd electrical devices attractive for various

reasons. If your controller or pump is susceptible to insect infestation you

should implement a suitable pest control plan.

• Over time the relevant position of the home or RainBank and the rainwater

tank may change slightly. In order to reduce the stresses on pipework

such movement may result in, it is recommended that a length of exible

pipework from pump to RainBank be installed. This pipework can be a

braided hose or polythene pipe or similar.

• Limit mains water pressure to 600kPa max. (NOTE: Australian Building

Standards stipulate incoming mains pressure should not exceed 500kPa.)

• Under AS/NZS 3500.1 collecting/storing rainwater in a buried tank is

considered a medium level hazard. Even though RainBank has a built-in

dual check back ow valve, you may be required to t additional backow

protection valves to satisfy this requirement – check with your local council as

to their guidelines on rainwater tank installation and backow prevention.

BEFORE YOU START

INSTALLATION TIPS

Other things we recommend to maximise the performance and serviceability

of your RainBank.

• Install cabinet on a solid, well protected wall (this will reduce noise and pipe stress).

• Fit rst ush devices to all down pipes to ensure clean water inside the tank

(dirty tank water can stain toilets & clothes).

• Fit a strainer to the top of your tank inlet to stop leaves entering the system.

• Use at least 20mm or ¾ inch plumbing to and from RainBank to reduce the

effect of pipe friction. Galvanised pipe not recommended.

• Clear swarf from all pipes and holes drilled into the tank (swarf can block valves,

RainBank and toilet valves).

• Check with local council plumbing teams for backow requirements.

• Keep pipe work well braced as vibrations can become noisy.

• Fill rainwater tank above oat switch with garden hose to check system.

• Make sure pump is full of water (primed) before leaving site. Flush all air out of

system by running pump with an outlet downstream open.

• Advise the customer to clean lters inside cabinet regularly.

• All pipe work and ttings should be labelled in accordance with local

standards such as Australian Standard AS/NZS 3500.1. 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’.

• 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

inrm persons and must not be used as a toy by children.

• Davey recommends a 2mm hole in the pipe work just above the pump outlet

to clear air from the pipe work.

• There is no need for a separate oat switch as this comes attached to the

submersible pump and does not plug into the RainBank unit.

COMPONENTS

Dual check valve

RainBank

Mounting

Bracket

Mains

water inlet

RainBank 10” Filter Housing

Rainwater inlet

Outlet to toilets

and laundry

Y strainer

(rainwater)

Stop valve

In-tank Option

Mains water supply

900kPa Maximum

3/4” BSP Male thread

Pump Power lead

RainBank Power lead

Stop valve

Warning:

Do not reconnect with

mains water supply

Important:

All pipework and outlet

ﬁttings from RainBank must

be labelled to AS/NZS 3500.1

Float switch

Manual start button

Rainwater supply via pump

PUMP INSIDE TANK Option - Overall

MODEL NO. KRBCABS1/20 &

KRBCABS2/20

PUMP INSIDE TANK Option - Close up

TO TOILETS

AND/OR

LAUNDRY

(do not mix/cross-connect

with mains water supply)

MAINS

WATER SUPPLY

3/4" BSP

male thread

Manual start

button

RAINWATER

SUPPLY

from discharge

of auto submersible

rainwater pump

Power to pump via

3 pin socket - plug the

rainwater pump in here.

Incoming power

to RainBank®

via 3 pin plug

3/4" BSP

male thread

1" BSP

male

thread

* Pressure Limiting Valve

WHERE MAINS PRESSURE

EXCEEDS 600kPa. A PLV*

MUST BE FITTED TO INLET!

Stop valve

200 Micron

‘Y’ Strainer

Pipe

WARNING: DO NOT INSTALL CHECK

VALVES BETWEEN PUMP AND RAINBANK.

IMPORTANT: ALL PIPEWORK AND OUTLET FITTINGS FROM RAINBANK MUST BE

LABELLED TO AS/NZS 3500.1. DO NOT CONNECT WITH CRIMPED FITTINGS.

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