VADA FLOW BOSS VFB-DSU, Installation Manual

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VADA FLOW BOSS 

DIGITAL WATER SWITCHING UNIT

VFB-DSU 

INSTALLATION MANUAL

3.  Connect the 25mm female end of the  

barrel union to the nipple until it is 
watertight. Do not overtighten.  

4.  Wrap thread seal tape around another  

25mm nipple.

5.  Thread the nipple into the base of the 

switching unit until it is watertight. Do not 
overtighten.

PART 1: PREPARING  

THE VADA FLOW BOSS 

DIGITAL SWITCHING UNIT

1.  Insert two mesh inline filters on the mains 

water inlet and pump inlet of the unit.

2.  Ensure the height of the tank outlet from 

the base of the tank is at least 100mm. If 
installing a submersible pump, ensure there 
is a 100mm gap between the base of the 
pump and the base of the tank.

Note: 

Clean water is essential for the  

reliable operation of your switching unit.  
It is recommended to install first flush diverters 
and leaf guards on your rainwater tank.

If the incoming mains pressure  
to the property is greater than  
the specified 1000kPa, please  
fit a pressure reduction valve  
of appropriate capacity upstream 
of the Digital Water Switch. 
The recommended pressure is 
500kpa to suit AS/NZS 3500. 
Fitting this type of device to the 
entire house will extend the life of 
other appliances such as washing 
machines, hot water service and 
dishwashers.

This appliance is not intended 
for use by persons (including 
children) with reduced physical, 
sensory or mental capabilities, 
or lack of experience and 
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 that they  
do not play with the appliance.

Brace inlet and outlet connections 
while fitting the Digital Water 
Switch. Any movement of 
connections may disturb internal 
seals and cause leakage.

If the supply cord is damaged 
it must be replaced by the 
manufacturer, its service agent  
or similarly qualified persons in 
order to avoid a hazard.

INSTALLATION

100mm

PART 2: CONNECTING THE 

DIGITAL WATER SWITCHING 

UNIT TO THE PUMP 

In this manual the VFB-DSU is pictured with  
a jet pump. If you’re installing the VFB-DSU 
with a submersible pump, the connection will 
differ slightly. 

If connecting a VFB-DSU to a submersible 
pump, you will need to mount the VFB-DSU 
onto a bracket. 

1.  Wrap thread tape around both ends of  

a 25mm nipple.

2.  Thread the nipple into the female socket  

of the pump discharge until it is watertight. 
Do not overtighten.

HELPFUL HINTS