General Guidance
16
W
ATER CONNECTION
This section deals with the procedure and recommendations for connecting a suitable water
supply to the Zero™.
Connection
Follow the guidance on this page and connect a suitable water supply to the connection
marked ‘Water Connection” and open supply fully.
Suitable Water Supply
A suitable water supply means water drawn from the mains potable water supply with a
minimum delivery pressure of 40psi for machines with boosted fill and a minimum delivery
pressure of 65psi for machines without the boosted fill option.
As well as water pressure, the flow rate of the water supply is an equally important factor. The
chosen water supply needs to flow a sufficient volume of water to satisfy the machines needs.
To ascertain the flow rate simply count the number of litres on open flow that is produced in 1
minute from the chosen water supply (ltrs per min). For example, a machine that is capable of
producing 5 litres of pure water per minute requires a minimum flow of 10 litres per minute
from the mains water supply. This is because up to 5 litres per minute is rejected by the
machine carrying impurities to drain.
A machine capable of producing more than 5 litres of pure water per minute shall require a
flow rate of at least double its design capability. Where mains water pressure/flow is low the
use of a break tank will avoid cavitation in the water supply. The size of the break tank will
depend upon the volume of pure water required and the speed at which it can be refilled.
Sufficient pressure and flow are both relevant for the machine to perform to its design
specification.
Unsuitable Water Supply
In addition to low pressure and low flow, unsuitable water supplies include lakes, reservoirs,
and rivers, bore holes, and seawater.
Recommendations
1) In the case of static machines water connection should be by means of a permanent hard
piped connection.
2) In the case of mobile/vehicle mounted/portable machines a flexible hosepipe connection
will be suitable.
3) In all cases the machine should be sited as close to the water supply so that the
connecting hose can be kept as short as possible. Hoses of 13mm or 1/2inch are suitable
however hoses of 22mm or 3/4 inch are more desirable especially when the machine is
sited further away from the water supply.
4) Care should be taken to ensure that accidental disconnection from the water supply does
not occur. Beware of vehicles stopping on hoses, poor connections, and disconnection by
third parties, flattening of hoses during hot weather, kinking of hoses. Take precautions
such as placing hoses in the shade, protecting hoses from compression by vehicles,
placing “do not disconnect” signs at mains water connections.
5) Avoid dirt ingress and flush hoses prior to connection.
6) Replace damaged or leaking hoses and connections.
Summary of Contents for Zero PPB
Page 1: ...1 Operators Manual...
Page 5: ...Zero Weights Dimensions 5 Dimensions...
Page 7: ...Machine Component Identification 7 Component Identification...
Page 8: ...Machine Component Identification 8 Control Panel...
Page 10: ...Machine Component Identification 10 Zero System Filters Removed...
Page 13: ...Machine Component Identification 13 Filter Identification Zero PPB System...
