INSTALLATION Instructions MKII 2009 WINNER • Installation • Operation • Trouble shooting ® Davey and RainBank are registered trade marks of Davey Water Products Pty Ltd. © Davey Water Products Pty Ltd 2013. P/N 401336-11 supersedes P/N 401336-10 ATS 5200.446 Lic WMKA 22042 3 AR YEARS UARANT A N KS NB 3 YE ON ALL RA I Davey Support Centre 7 Rockridge Avenue, Penrose, Auckland 1061 Ph: 0800 654 333 Fax: 09 527 7654 Website: daveynz.co.
DAVEY GUARANTEE Davey® Repair or Replacement Guarantee In the unlikely event in Australia or New Zealand that this Davey product develops any malfunction within warranty periods beginning from the date of original purchase due to faulty materials or manufacture, Davey will at our option repair or replace it for you free of charge, subject to the conditions below.
Notes 34 CONTENTS About RainBank® . The easy way to save water.
About RainBank® The easy way to save water Your actual savings depend on your roof catchment area, rainfall and the size of your tank. PLUMBERS TIPS Congratulations on your purchase of a high quality Australian made Davey RainBank® automatic water controller. RainBank® is patented and has been fitted to thousands of homes. RainBank may allow you to claim tank rebates (when installed on existing homes). Check with your local water authority. 2.
32 Important: All pipework and outlet fittings from RainBank® must be labelled to AS/NZS 3500 Rainwater supply via pump Warning: Do not reconnect with mains water supply Manual start button Float switch 9 Stop valve 7 8 RainBank® Power lead 6 Pump Power lead 5 3/4” BSP Male thread 4 3/4” BSP Male thread 3 1 4 9 2 5 3 In-tank Option 8 (see page 14) Model No. KRBS1&2 1 6 Model No. KRBS1&2 ! 6 (see page 12) Above Ground Option 9 4 2 8 3 5 Model No.
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 sufficient to overcome the pressure of the mains water inside RainBank® and this moves a plunger and allows the rainwater to flow.
SYMPTOM: PUMP WILL NOT SWITCH ON 1. Pump not plugged in. Plug pump into base of RainBank® and RainBank® into power supply. See page 20. 2. No power supply to pump. Contact electrician and have power restored. 3. Float switch not connected to RainBank®. Plug float lead into base of RainBank®. The connection lead is located next to the power lead coming from the RainBank®. To confirm the connection is correct, depress ‘manual override’ button, pump will start. 4. No water in tank.
Installation type 4 - PAGE 23 Mains In To House Different ways of installing the RainBank® unit itself. • Exposed installation against wall (under eaves). Mains In To House FV Tank: Below ground and at ground level Float switch: Top entry Pump Kit: KRB1,2,3&4 • Encased installation with unit and pump inside cover. Mains In To House TROUBLE SHOOTING RAINBANK® SYMPTOM: PUMP WILL NOT SWITCH OFF 1. Pump plugged directly into power outlet.
maintaining rainbank ® RainBank® does not need maintenance but there are things you can do to ensure its most reliable operation. • Fit a “first flush” system that ensures the first run of dirty rainwater does not go into the tank. • Clean your gutters and first flush devices and ‘Y’ strainers regularly. • Remove branches that over hang your roof. • Have a strainer fitted to your rainwater tank inlet and regularly check this for leaves and twigs, etc.
Make sure the delivery from RainBank® to your home is within the following pipe length limits: Pipe diameter 15mm 18mm 20mm Max. pipe length @ 6 lpm flow 1m 90m 235m Max. pipe length @ 12 lpm flow 1m 27m 135m For each bend or tee you should reduce the above distances by 0.5m. • We recommend fitting isolation valves to the rainwater and mains water pipe so that the RainBank® can be easily and conveniently removed if required.
priming pumps 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.
pump outside tank option - overall INSTALLATION OF SUBMERSIBLE PUMPS 3. Place pump into tank. ! Union Model No. KRB1,2,3&4 PVC pipe 8 tie Cable 3 IMPORTANT Do not pull on power lead. Fit a rope to handle for lowering and raising pump. 1 6 2 4. Davey recommends the fitting of floating inlets to submersible pumps to minimize any possibility of sludge intake. Part number to suit pump D42A/B is FI-42.
24 RAINWATER SUPPLY from discharge of rainwater pump 200 Micron ‘Y’ Strainer recommended but not supplied. Power to pump via 3 pin socket - plug the rainwater pump in here. 3/4" BSP M E B 20mm hole 200mm Stop valve TO TOILETS AND/OR LAUNDRY (do not mix/cross-connect with mains water supply) 100 1" BSP M B D Incoming power to RainBank® via 3 pin plug E 100 3/4" BSP M 100 D WARNING: DO NOT FIT CHECK VALVES BETWEEN RAINBANK®, PUMP AND TANK, UNLESS PUMP IS ABOVE MAXIMUM WATER LEVEL OF TANK.
PUMP INSIDE TANK OPTION - OVERALL You should carry out the following steps as per the instructions for Installation Type 1 Step 2 – Work out the position of your RainBank® with regard to distance to power. The float switch lead is not an issue here. Model No. KRBS1&2 1 2 8 Step 4 – Align the RainBank® for easy fitting to the plumbing. Fit Davey wall bracket. 6 3 Step 5 – Connect RainBank® to your submersible pump as per instructions on page 25.
• Failure to prime the submersible pump prior to connection of the pump to RainBank® can cause an air lock that may prevent the pump operating properly. PUMP INSIDE TANK OPTION - CLOSE UP Installation Type 3 Below ground tank with submersible pump D42A/B & D53A/B Mains In IMPORTANT: All pipework and outlet fittings from RainBank® must be labelled to AS3500. DO NOT CONNECT WITH CRIMPED FITTINGS. To House 22 WARNING: DO NOT INSTALL CHECK VALVES BETWEEN PUMP AND RAINBANK®.
To protect against electrical surges and lightening strike damaging RainBank® or its pump we strongly recommend the use of a suitable surge protection device and residual current devices. Installation type 1 Above ground tank and pump outside tank.
D • It is highly recommended that an isolation valve be fitted to where the mains water enters RainBank® and between the pump and the rainwater tank. This facilitates easy removal of the unit if required without turning off the household water or losing stored rainwater. • Do not use thread sealing compounds, hemp or pipe glue. Do not use crimped fittings. • All RainBank plumbing fittings feature rotating unions that require bracing.
maximum tank wall thickness of 25mm. It is not suitable for concrete or very thick plastic walled tanks. There is an alternative float switch that can be lowered into the top of these types of tanks (Davey Part Number 13961). Work out the correct position for the hole for the float switch. With a corrugated profile tank wall this is on the upper flat section of the profile as shown below. Note: Ensure level sensor is installed with ‘UP’ facing up does not interfere with the operation of the switch.
