Pentair Onga WaterSwitch WS1500200 User manual

C of C: 40087 in accordance
with ATS5200.477-2006
WS1500200
Please read Owner’s Manual before installation
Should the installer or owner be unfamiliar with the
correct installation
or operation
of this type of
equipment,
contact the distributor
or manufacturer
for correct
advice before proceeding
with installation
or operation of the product
OWNER`S MANUAL
WaterSwitch
Automatic Rainwater Controller
Distributed in NZ By:
Freephone 0508 634 341
7 Monier Pl, Mt Wellington, Auckland
1060, New Zealand

As a global leader in water products, Pentair Water is making
a strong commitment to develop the most environmentally
responsible products available. The new Eco-Select label is the
keystone of this green program to meet the dual objectives of
a growing number of home owners - to save money and make
more eco-friendly choices.
You’ll see the Eco-Select label associated with several existing
products and systems that already meet the objectives
including the new Onga WaterSwitch.
Eco-Select approved products save energy, conserve water,
reduce noise and contribute to a more environmentally
responsible choice for the homeowner.

1
The operator must be provided with this owner’s manual. This must be
read before installation and followed during installation.
These instructions are a guide only. Users not familiar with the
installation and maintenance of electrical and pumping equipment should
seek advice from people with experience in pump installation and operation.
WaterSwitch is designed to be used with clean water in a residential
application. Do not use with alternative fl uids, specifi cally abrasive,
corrosive or explosive fl uids.
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience
or knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure they do not play with the appliance.
WaterSwitch Installation Instructions
Congratulations on your decision to purchase
an Onga product. Onga is one of the best
known brands in its f ield, with a proud local and
international reputation.
Onga is a brand for reliability, value for money and
technological innovation. You will f ind Onga product
Get More Out Of your Tank
wherever people need to move, store or treat water.
with Onga WaterSwitch....

Table of Contents
Page
Model Data 3
Application 4
Installation 5
Water Level Sensor Installation 9
H2OInformer 10
WaterSwitch Electrical Connection 12
Operation 13
Fault Mode 14
Service and Maintenance 15
Troubleshooting 16
Installation of Complete WaterSwitch System 18
2

Model Data
3
Technical Information
Mains Water Supply inlet: 1” BSP thread
Pump connection: 1” BSP thread
Water outlet connection: 1” BSP thread
Minimum Mains Pressure: 100 kPa
Maximum Mains Pressure: 1000 kPa
Rated Supply Voltage 230-240Va.c.
Maximum electrical load: 10A
Water temperature range: 1°C to 40°C
Ambient Temperature range: 1°C to 40°C
Power consumption (Mains): 1W
Power consumption (Tank): 18W
Minimum Flow Rate: 2 lpm
IP Rating: IP44
Accessories
Submersible Pump bracket kit Part Number 801481
Surface Pump Mount - Barrell Union Kit Part Number 801439
Water Level Sensor - In Tank Float Part Number 707170
Water Level Sensor - Grommit 3mm Side Wall Part Number 801390
Grip and Brace the connection while fi tting pipework
To toilet, garden,
laundry
From Pump
Mains Supply

Application
WaterSwitch is designed to select between stored rainwater (when available) and
4
mains supply water, and send this water to your toilet cistern, washing machine,
garden and other non-potable household applications. It features automatic pump
control to minimise the use of electricity while saving water.
Rain water is used in preference so that:
- your water rates are minimised
- you conserve mains water and reduce usage of the city catchments water supply
- Harvest rainwater to its full potential so there is more space available in your
rainwater tank prior to the next rain shower
When your tank is empty, WaterSwitch seamlessly switches to mains supply so that
there is no interruption of water to your toilet cistern or washing machine. WaterSwitch
provides uninterupted supply to ensure you can flush your toilet - there will be no
unsanitary situations.
Do not use WaterSwitch for liquids other than clean water. Using corrosive, abrasive
or explosive fluids will damage the unit, and may cause personal injury or death.
Only Onga gives you an extended range of pumps to couple with WaterSwitch to suit
both inground or above ground water tanks. Featuring energy efficiency, low noise
levels, high flow and pressure, with a range of accessories there is a pump to suit
your needs.
Mains

5
Freezing conditions will damage the unit, as water expands as it
freezes. Ensure that the WaterSwitch is located so that it is not
prone to freezing, or ensure that the product is disconnected and
dried of water during cold conditions.
WaterSwitch is electrically connected. Ensure that it is isolated
from electrical supply during installation and any subsequent
service work.
Do not install or operate WaterSwitch in an explosive
environment or near combustible matter.
Brace inlet and outlet connections while fitting WaterSwitch.
Any movement of connections may disturb internal seals and
cause leakage. rst. Inspect WaterSwitch for shipping damage.
Preparation for installation
Read these instructions first. Inspect WaterSwitch for shipping damage.
Report any damage to your Pentair Water dealer.
If the incoming mains pressure to your property is greater than the specifi ed
1000 kPa, please fit a pressure reduction valve of appropriate capacity
upstream of WaterSwitch. This pressure reduction valve must bring the
pressure to below the rated value 1000 kPa. A recommended pressure is
500-750kPa. Fitting this type of device to your entire household will extend
the life of other appliances such as washing machines, hot water service and
dishwashers.
Ensure installation is in accordance with AS/NZS 3500.1 - Plumbing and
Drainage - Water Services
Installation

6
Fittings and accessories
Ensure that you have all required fittings and accessories prior to installing
WaterSwitch.
Surface Pumps
For installation using ¾” copper tube we recommend the following items:
- threadseal tape
- ¾” flare – 1” BSP Male brass connectors [x2]
- WaterSwitch Surface (Float) Kit 707170
For installation using polyethylene tube, we recommend the following items
- threadseal tape
- 1” BSP Male fitting with appropriate hose barb
- hose clamps
- WaterSwitch Surface (Float) Kit 707170
Submersible Pumps
Mounting WaterSwitch on a wall is made easy with the optional wall mounting
kit (Part Number 801481). In addition, flexible hose (at least 25mm diameter),
barbed hose connectors and hose clamps may also be required.
Protection
Warranty of this WaterSwitch is void unless it is operated in accordance
with this owner’s manual. The pump and WaterSwitch should be housed
in a weather proof, well ventilated enclosure, to protect from the weather,
flooding, chemicals, dust, vermin, insects etc.
Installation

Installation Recommendations
1. The Onga WaterSwitch comes with 2 mesh inline filters. These fi lters
should be correctly inserted on the mains water input and pump input of
the WaterSwitch.
2. Onga recommends the height of the tank outlet from the base of the
tank be set at 100mm.
3. Onga recommends a minimum distance of 100mm of straight pipe at
the WaterSwitch mains water inlet.
4. Clean water is essential for the reliable operation of your WaterSwitch
system. Onga recommend the installation of fi rst fl ush diverters and
leaf guards on your water collection system.
Recommended Installation
Mounting
The pump and WaterSwitch must be mounted on a solid, level, vibration free
surface. The WaterSwitch can be mounted in one of two ways:
1. Mount directly to the top of the pump with PN 801439 WaterSwitch surface
pump accessory kit
2. Mount remote from the pump with wall bracket PN 801481
7
Installation
Min 100mm
Household
Mains
100

8
Connecting the WaterSwitch to the Pump Using the Union Kit
(Where Supplied)
2. Connect one end of the nipple into the pump discharge, threading it until it is
watertight. (DO NOT OVERTIGHTEN)
3. Connect the 1” Female end of the complete barrel union onto the protruding end of
the 1” Nipple until it is watertight (DO NOT OVERTIGHTEN)
4. Wrap a reasonable amount of threadseal tape around the 1” end of the union
nipple. Thread it into the base of the WaterSwitch until watertight (DO NOT
OVERTIGHTEN). If you are unable to screw the WaterSwitch on top due to space
limitations, unscrew the barren union nut releasing the nipple from the union, then
thread the nipple into the WaterSwitch (Make sure the Union nut remains on the
nipple). Rejoin the union to complete the connection.
Mains Inlet Connection
WaterSwitch has a 1” BSP Female fi tting to connect the incoming mains supply water.
This end is marked with an arrow pointing into the unit (showing water fl ow direction).
Brace this fitting to prevent movement while connecting to the mains supply. Any
movement of this fitting may disturb internal seals and cause leakage.
Water Outlet Connection
WaterSwitch has a 1” BSP Female fitting to connect to household plumbing for uses
such as filling toilet cisterns, the washing machine, and garden taps. This end is
marked with an arrow pointing out of the unit (showing water flow direction). Brace
this fitting to prevent movement while connecting to the mains supply. Any movement
of this fitting may disturb internal seals and cause leakage.
Pipe Marking
In accordance with AS/NZS 3500.1:2003, pipes and outlets connected to WaterSwitch
must be marked as follows:
Outlets that are connected to your WaterSwitch must be marked with the wording
“RAINWATER”. The piping system connected to WaterSwitch must be clearly marked
at 1m spacings with the wording “RAINWATER”
Installation
1. Wrap a sufficient amount of thread seal tape around both ends of the 1” Nipple.

9
Water Level Sensor Installation
Float Sensor Installation
1. Determine a suitable position in the tank roof within reach of the man-hole, to
drill a 16mm hole for switch cable penetration. (Note: Hole saw available from Onga
dealer). Install the supplied cable gland, with the Locknut positioned inside the tank.
2. Surface Tank Installations: Drape the level sensor up against the side of the
tank, lifting the cable until the float is 70mm above the suction. At this point
mark the position of the cable that is level with the roof of the tank using the
marking tape (supplied).
4. Once in position, route the cable to the Onga WaterSwitch and plug the
connector to the matching receptor on the underside of the panel. Using the
cable ties, fix the cable to the pipework near the Onga WaterSwitch to avoid
the cable accidently being pulled free.
Min 100mm
Household
Mains
70mm
above suction
Note: Do not
adjust factory
setting.
Cable Tie
In-Ground installations: Lower the float into the tank. Position the fl oat 70mm above the
suction fitting or pump inlet. Use the marking tape (supplied) on the cable to indicate top of
tank position.
3. Feed the float switch connector plug, on the end of the float switch cable, through
the cable gland from the inside of the tank. Pull the cable through the gland
until the tape marker appears and is level with the top of the tank. Tighten the
gland’s external ‘dome nut’ to fix the cable position.

10
The WS1500200 model WaterSwitch is equipped with the H OInformer. The
2
H OInformer allows you to see your actual water saving. The H OInformer can
2 2
be detached from the WaterSwitch and be placed conveniently in the kitchen
or other room within 20 metres of the WaterSwitch and will continue to give
up to date water readings as you require them. The Pairing process creates
a unique code between the H OInformer and the WaterSwitch.
2
Pairing the H OInformer
2
1. Press the “manual override” button on the WaterSwitch cover while
powering up the WaterSwitch. Red status light will blink 3 times,
acknowledging the switch activation
2. Release the switch when the green status LED starts blinking. Green LED
blinking indicates that WaterSwitch is going into pairing mode
3. Hold down the “mode” button on H OInformer for 3 seconds. The
2
H OInformer will go into search mode, with “search” displayed on the
2
LCD screen
4. After pairing is complete, “paired” will be displayed on the LCD screen
When pairing is complete, WaterSwitch will be communicating with the
H OInformer and this can be verified by the green LED if tank is full and
2
orange LED if tank is empty, on the WaterSwitch blinking at 1 second
intervals. The red LED on the H OInformer will blink each time it receives
2
a signal.
H OInformer
2
Status
Manual
Override

11
H OInformer Display Options
2
The following information can be viewed by using the “mode” button
to scroll through the menu
1. Rain water usage in litres (indicated by tank icon)
2. Mains water usage in litres (indicated by tap icon)
3. Water savings in percentage (%) – Tank usage Vs Mains usage
4. Number of days usage since last reset
Resetting the H OInformer Stored Information
2
1. Press the “manual override” button on the WaterSwitch cover while
powering up the WaterSwitch. Red status light will blink 3 times,
acknowledging the switch activation
2. Release the switch within 2-3 seconds
3. Scroll through the H OInformer menu using the “mode” button. All water
2
usage, percentage saved and days should now read zero (O)
When resetting is complete, WaterSwitch will be communicating with the
H OInformer and this can be verified by the red LED on the WaterSwitch
2
blinking at 1 second intervals
H OInformer
2

To avoid dangerous or fatal electrical shock, turn OFF power to the WaterSwitch
12
before working on any electrical connections.
The supply voltage for the WaterSwitch must be within the stated parameters. Refer to
page 3 of the owner’s manual.
If the power supply cord or pump interconnection cord is
damaged, it must be replaced by an authorised Pentair
Water Service Agent or a similarly qualified person in order
to avoid hazard.
Before connecting WaterSwitch to an electrical power
supply, connect the pump to the WaterSwitch using the
provided IEC appliance connectors on the end of the
interconnection cords. Ensuring there are no traces of
water on the connectors, push them firmly into each other
to ensure splash proof protection. This connection should
only be separated for servicing purposes, and only after
the power supply of the WaterSwitch is removed either
through an isolation switch or by unplugging.
Ensure that the tank level sensor is securely connected to the base of the unit using
the bayonet fitting, and the lead is cable tied to the connecting pipework to help
prevent it being pulled free.
WaterSwitch is supplied with a standard Australian 10A plug and cord, and connection
to the power supply is a matter of inserting the plug into the suitable socket outlet.
If local authorities require the WaterSwitch and pump to be hard wired, the electrical
connection must be done by a qualified electrician with pump knowledge according to
the National Wiring rules (AS/NZS 3000) and/or any local council requirements.
We recommend to connect WaterSwitch to a socket outlet protected by a Residual
Current Device - RCD (Also known as an Earth Leakage Circuit Breaker – ELCB) with
a rated tripping current not exceeding 30mA. Contact a qualified electrician if you
cannot verify that the socket outlet is protected by RCD. RCD tripping indicates
an electrical problem. If the RCD trips and will not reset have a qualifi ed electrician
inspect and repair electrical system
Once installation is completed, switch on the socket outlet switch (or the isolating
switch in the installation) on. Refer to pump manual for further installation details.
WaterSwitch Electrical Connection

13
Operation
Commissioning
Put a small amount of water in the tank (just above the level of the tank sensor).
Open a tap on the outlet side of the WaterSwitch (or have someone flush the toilet).
The pump will start. Turn off the tap, and the pump will stop.
Temporarily disconnect the level sensor connection (fitting in base). This indicates to
the WaterSwitch that there is no water in the tank, and that it will switch
to mains supply operation.
Again, open the tap or flush the toilet. Main supply water will fill the cistern. Close
the tap, and replace the level sensor connection. If there are any variations to these
outcomes, please see the troubleshooting section on page 16.
Status
Manual
Override

WaterSwitch has a mechanism to prevent the pump from running with no water.
14
If the level sensor detects water in the tank, but there is a blockage or partial blockage
somewhere in the system the following process will occur:
1. If WaterSwitch is supplying water and also senses water in the tank, it will activate
the pump to supply rain water.
2. If no rain water is delivered from the tank within 30 seconds, WaterSwitch will
switch to supplying mains water.
3. After 6 seconds if no rainwater has passed through the system, waterswitch will
divert to mains water.
4. If no water is delivered from the tank it will repeat step 2 and step 3 four times.
If there is still no water delivered, WaterSwitch will divert to ‘loss of prime’ mode.
5. The LED on the WaterSwitch will flash red to warn that abnormal conditions exist.
It also locks out the pump from further operation to protect the pump from dry
running, and to ensure that the house has continuous mains water supply.
6. Automatic Lockout Reset Feature
Event Reset Time
1st lockout 10 minutes
2nd lockout 1 hour
3rd lockout 6 hours
4th lockout 24 hours
5th lockout 160 hours
This feature can be over ridden by switching the unit off for 10 seconds.
General Operation
Your WaterSwitch operates entirely automatically without intervention. If electrical
supply is cut in your neighbourhood, WaterSwitch will automatically revert to
mains supply water, as there is no power to drive the pump. When power resumes,
WaterSwitch will continue to operate normally.
If town supply water is shut off in your area, WaterSwitch might not be able to detect
water demand in the household (e.g. if the toilet cistern needs refilling). By pressing
the manual override button, you can override normal control and start the pump to
supply water out of the rain water tank.
Fault Mode

15
Service and Maintenance
WaterSwitch is a warm, dry environment for hibernating insects. These
can cause electrical malfunction. Ensure that your property is vermin free.
WaterSwitch is electrically connected. Ensure that it is isolated from
electrical supply during installation and any subsequent service work.
WaterSwitch should only be serviced by a Pentair Water service agent.
WaterSwitch Service
Before removing WaterSwitch for service:
1. Switch off power to WaterSwitch before proceeding.
2. Close shut off valves at inlet, outlet and water tank gate valve.
3. Carefully release all pressure from the pump and piping system.
4. Never tighten or loosen fittings while the pump is operating.
To reset from ‘loss of prime’ mode
A) Turn off power for 10 seconds.
B) Turn power supply back on.
C) Reprime the pump. Check for blockages in the suction line.
WaterSwitch should resume normal operation

16
Troubleshooting
Symptom Cause Remedy
(1)
No water is being
Water tank is empty
delivered from pump
Check tank level, wait for rain
if empty
No power at outlet Check power supply, circuit
breakers and plug.
Bad signal from level sensor Check installation and operation
of the level sensor.
Pump has overheated Allow pump to cool
Mesh filter is blocked
Switch power off, isolate water
and remove pump barrel union,
inspect/clean/replace fi lter
Pump is worn
Have pump serviced by an
Onga service agent or other
suitably qualifi ed person
(2)
No water is being
delivered from pump:
WaterSwitch has gone
into ‘loss of prime’
Valve on or between tank &
mode
WaterSwitch inlet is closed.
Open gate valve and prime
pump. Reset WaterSwitch
Pump is not primed Prime pump and reset
WaterSwitch
Mesh filter is blocked
Switch power off, isolate water
and remove pump barrel union,
inspect/clean/replace fi lter
(3)
Mains water valve is closed
No water supply at all
Check mains water isolation
valve is open
Blockage in system Check mains water and tank
water piping for obstructions
Incoming mains water
pressure is greater than
1000kPa
Fit a pressure reduction valve to
reduce incoming mains pressure
(4)
Poor Water Pressure
Mesh Filters blocked
through pump
Switch power off, isolate water
and remove pump barrel union,
inspect/clean/replace fi lter
Worn pump
Have pump serviced by an
Onga service agent or other
suitably qualifi ed person
Pump is too small for
application
Have an Onga pump
professional recommend a
larger pump

17
Troubleshooting
Symptom Cause Remedy
(5)
Air lock in system
Pump continually runs
Bleed air from system. Activate
appliances/outlets sequentially
from the nearest to the furthest
outlet. Repeat if necessary. If
problem persists contact your
dealer.
(6)
H O Informer shows
2
Not correctly paired to
error
WaterSwitch
Switch off power for 10
seconds. Turn power on and
hold down manual reset on
WaterSwitch. Press mode
button on the Informer and wait
until unit pairs with WaterSwitch
H O Informer out of range of
2
WaterSwitch
Position H O Informer within 10
2
metre range and press mode
button
(7)
No display on
Battery fl
H O Informer
2
at Replace battery, pair Informer
as per owners manual
Faulty H O Informer Replace H O Informer
2 2

18
Installation of Complete WaterSwitch System
Pump Cover Kit installation
1. Place Pump/Cover assembly in position required for installation and remove cover,
2. Install all necessary pipework for Mains, House/Garden and Tank supply.
3. Please flush clean pipe work to waterswitch before connection.
4. Connect tank water, mains and house/garden supply pipework as shown,
- ensure the fibre washers of the flat seat nut connections are in place.
5. Turn on mains water and power - Please refer to Commissioning notes pg 13
Owner’s Manual for further detail
6. Cut out end slots, each end of cover, to suit fl exible hose.
7. Replace pump cover and attach with 4 screws supplied.