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.