6
WATER VALVES
Dispensing of water to the customer is achieved by means of a 24V DC electrical
solenoid valve. The valves are energized every time the customer pushes the
dispense button for a drink. DC voltage is used to give a positive and quieter action
of the solenoid valve.
PLASTIC PANELS
The moulded panels are made from recyclable ABS plastic. All the ABS plastic
panels are UV resistant and meet the standards of CE and UL. Please note that
the machine should not be exposed to direct sunlight. Placing machines in direct
sunlight, or close to a radiator, or in a room of high ambient temperature will effect
the efficiency of the refrigeration circuit.
PARTS REQUIRED FOR SPARKLING WATER
CO
2
Cylinder & Gas Regulator: The units with the option of sparkling water will need
CO
2
gas, food grade carbon dioxide. This gas is stored in cylinders in a liquid form.
The cylinders are usually painted grey or black (regulation requirement for CO
2
). The
gas regulator, which comes with the unit,controls the flow of CO
2
to the carbonation
tank; it reduces the pressure of the CO
2
gas to 45PSi which is needed to make high
quality sparkling water.
Water Pump: The pump is 24V DC and forces the pre-chilled cold still water into
the carbonation tank at a minimum pressure of 45 PSi. This pressure is required to
overcome the internal pressure from the CO
2
gas which is in the tank.
FILTERS
The filtration system on the WL3000 is carried out in three stages. Stage one is
the reduction of dirt and sediment particles from the water. Stage two is a Granular
Activated Carbon (GAC) process which will remove a whole range of contaminents
e.g. chlorine, pesticides. Stage three is a second GAC filter removing any remaining
contaminates. It is important for the UV sterilization system to be supplied with
clean water in order to achieve maximum efficiency. If the water is not cleaned of
particulate matter, this will restrict the penetration of the UV radiation into water.
There are many kinds of different filter combinations available from Waterlogic to
suit local water conditions.
UV LAMP
The UV light is an 8 Watt germicidal lamp at a wavelength of 253.7 NM, which is
very efficient at destroying bacteria found in water. UV radiation sterilises bacteria
by destroying the DNA nucleus of bacteria. An 8-watt lamp is at peak performance
for six months and then should be changed. Tests prove that the 8-Watt lamp in
combination with a 2 litre stainless tank has a very effective kill rate of bacteria. The
lamp is immersed in the cold tank and protected by a quartz sleeve which allows UV
radiation to pass through to the water. When the lamp is changed the quartz sleeve
should be removed and cleaned.
PCB
The PCB (Printed Circuit Board) is the control unit for the 3000; it is responsible for
the functions of all the mechanical and electrical parts (24V DC). The microprocessor
drives a Liquid Crystal Display (LCD) which informs the user of the status of the unit.
On this model there have been added functions that will make the unit more flexible
to the customers needs e.g. option of different languages, sleep mode.
COMPRESSOR
The compressor operates at 220-240V and at 50Hz. It uses R134 a non-Ozone
depleting refrigerant gas. There is also the option to use natural refrigeration gas.
WATER PIPE AND FITTINGS
The inlet and the internal water circuit pipe size is 6mm and 8mm. The entire internal
water circuit and all the components which come in contact with water are food
grade NSF / WRAS approved. The Cold, Ambient and Sparkling water tubing inside
the machine should not be exposed to water above 25˚C.
WL3000 Technical Manual - May 2014
