WaterLogic WL3 Firewall Technical Manual page 4

IN FAUCET UV
The Unique design allows the faucet area to be sterilized before, during and after
every dispense. There are two types of sensors available, the CDS UV sensor that
detects if the UV lamp is working and the UV sensor that monitors the UVC intensity
from the UV lamp.
UV LAMP
The UV light is a 13Watt germicidal lamp at a wavelength of 253.7 NM, which is
very efficient at destroying bacteria in water. The UV lamp is situated in the Firewall
Chamber surrounded by a quartz spiral that attains NSF standard 55 purification of
water. The UV lamp must be replaced at 6 months intervals, and the quartz spiral
cleaned by using an ultrasonic bath if needed.
PCB
The PCB (Printed Circuit Board) is the control unit for the WL3, it is responsible
for the functions of all the mechanical and electrical parts (24V DC) including the
solenoid valves, touch panel, LED's and pump.
COMPRESSOR
The compressor operates at 220-240V at 50Hz. It uses 60-72 grams of R134a non-
Ozone depleting refrigerant gas depending on the model type.
WATER PIPES AND FITTINGS
The inlet and the internal water circuit pipe size is 1/4" and 5/16". The entire internal
water circuit and all the components which come in contact with water are food
grade NSF approved. The Cold, Ambient and Sparkling water tubing inside the
machine should not be exposed to water above 25˚C.
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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 touches the
dispense button for a drink. DC voltage is used to give a positive and quieter action
of the solenoid valve.
PLASTIC PANELS
The molded 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 WL3
should not be exposed to direct sunlight. Placing the WL3 in direct sunlight from a
window, close to a radiator, or in a room of high ambient temperature, will affect the
efficiency of the refrigeration circuit
PARTS REQUIRED FOR SPARKLING WATER
CO Cylinder & Gas Regulator: The units with the option of sparkling water will
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need CO gas, food grade carbon dioxide. This gas is stored in cylinders in a liquid
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form. The cylinders are usually painted grey or black (regulation requirement for
CO ). The gas regulator, which comes with the unit, controls the flow of CO
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carbonation tank; it reduces the pressure of the CO
make high quality sparkling water.
Water Pump: The water pump is 24V DC and forces the pre-chilled cold still water
into the carbonation tank at a minimum pressure of 3.2 bar. This pressure is required
to overcome the internal pressure from the CO
to the
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gas to 3bar which is needed to
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gas which is in the tank.
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WL3 Technical Manual - Version 1, July 2014
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