VADA VFB-MSU20 Bedienungsanleitung
Quick Start Guide
Vada Flow Boss
Mechanical Water Switching Unit 20mm
VFB-MSU20
Scan for
set up
support
FLOW BOSS
2VADA FLOW BOSS MECHANICAL WATER SWITCHING UNIT 20MM VFB-MSU20 QUICK START GUIDE
Meet the Vada Flow Boss Mechanical Water Switching Unit. Designed
for seamless water source switching, this unit is built with a solid brass
internal and UV stabilised AB plastic casing for reliable operation.
KNOW YOUR PRODUCT
20mm FI Outlet 20mm Mains inlet
25mm FI Inlet
UV Stabilised ABS plastic
casing for longevity
Dual Check Valve
Brass tail
• Pump inlet: 25mm FI
• Mains water in: 20mm FI
• Outlet: 20mm FI
• Max mains pressure: 500kPa
• Min pump pressure: 300kPa
• Max pump pressure: 600kPa
• Max flow rate: 50 litres per minute
• Max water temp: 40°C
SPECIFICATIONS
HELPFUL HINTS
• Use a suction pipe with a minimum 25mm internal diameter to reduce friction loss.
• Use a pump cover to protect your set up from the elements and increase product lifespan.
• You will need a flathead screwdriver for this installation.
• Ensure your pump set up is equipped with two isolation valves. This allows for fuss free
troubleshooting should you need it.
• To optimize pump performance, regularly check and clean the Y-Strainer.
COMPATIBLE VADA PRODUCTS:
Vada Flow Boss Jet Pump VFB-J40/VFB-J60
Vada Flow Boss Auto Pressure Control VFB-APC
ADDITIONAL PRODUCTS REQUIRED FOR INSTALLATION:
25mm Y-Strainer (AKA inline strainer)
Swing check valve
Pump cover
Note: You may or may not require this additional product, depending on your application.
3
Let’s get started!
Before you begin, ensure all relevant
instructions have been followed and
your pump has been primed.
1. Grab the rubber washer supplied and place
it on top of the Auto Pressure Control
(VFB-APC) outlet.
2. Hold the Mechanical Switching Unit
(VFB-MSU20) over the outlet and connect
the loose nut. Do not overtighten. The
rubber washer will lock this in place.
3. Connect the mains water pipe to the
VFB-MSU20 outlet labelled “mains in”.
4. Connect the house water pipe to the
VFB-MSU20 outlet labelled “to house”.
5. For easy maintenance down the track,
install an isolation valve into both the
mains and house water line.
6. Set up the suction line, installing an
isolation valve, swing check valve,
Y-Strainer and barrel union.
7. Use a pump cover
to protect your
set up from the
elements and
increase product
lifespan.
INSTALLATION
Poweron
Pumpon
Error
Restart
AUTOPRESSURE CONTROL
FLOWBOSS
240-50Hz
Max1.5kW
Max1MPa
8A
IP65
Poweron
Pumpon
Error
Restart
AUTOPRESSURE CONTROL
FLOWBOSS
240-50Hz
Max1.5kW
Max1MPa
8A
IP65
Mains water in
Poweron
Pumpon
Error
Restart
AUTOPRESSURE CONTROL
FLOWBOSS
240-50Hz
Max1.5kW
Max1MPa
8A
IP65
Poweron
Pumpon
Error
Restart
AUTOPRESSURE CONTROL
FLOWBOSS
240-50Hz
Max1.5kW
Max1MPa
8A
IP65
To house Mains water in
Poweron
Pumpon
Error
Restart
AUTOPRESSURE CONTROL
FLOWBOSS
240-50Hz
Max1.5kW
Max1MPa
8A
IP65
Poweron
Pumpon
Error
Restart
AUTOPRESSURE CONTROL
FLOWBOSS
240-50Hz
Max1.5kW
Max1MPa
8A
IP65
To house Mains water in
Poweron
Pumpon
Error
Restart
AUTOPRESSURE CONTROL
FLOWBOSS
240-50Hz
Max1.5kW
Max1MPa
8A
IP65
100mm
To house Mains water in
ADJUSTING CUT-IN PRESSURE
For a smooth, more reliable changeover
between tank and mains water, adjust
the cut-in pressure from the default 1.5
Bar to 2.2 Bar. Follow the steps below
accordingly.
1. Ensure your pump is primed. Then, turn on
the power at the power point.
2. Locate the adjustment screw at the back
of the VFB-APC.
3. Using a flat head screwdriver, turn the
adjustment screw clockwise until you
reach the correct pressure (approx 3.5
full 360° turns).
4. Confirm the pressure has been correctly
adjusted by slowly opening a tap outlet
and checking the gauge on the side of the
VFB-APC. If the gauge reads 2.2, the cut-in
pressure has been successfully adjusted.
Your pump solution is now ready for operation!
ON
To house Mains water in
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