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Waterlogic 4 Firewall Technical Manual - Issue A, October 2010
lifting the WL4 Firewall pressure release valve (yellow), located beside the UV lamp
assembly, for approximately 2 seconds.
7.
Connect the water supply. All water sources should be potable. Allow the water
supply to run clear of any sediment before connecting to the WL4 Firewall. The mini-
mum pressure for the WL4 Firewall to function correctly is 38 PSI (2.6 bar). The ideal
pressure is 45 PSI. The maximum pressure 60 PSI.
8.
Check the electrical wall socket (polarity) and then make the electrical connec-
tion to the WL4 Firewall by plugging the power lead in to the socket on the rear of
the WL4. Then connect to the electrical feed wall power outlet. Turn on the power
supply to the WL4 Firewall.
9.
Close the top cover and turn on the red power switch. The WL4 Firewall will go
through a self test cycle and light the WL4 Firewall icons automatically. When the
self test cycle completes, the sparkling water model will automatically fill with wa-
ter, whilst still water models will need to be manually flushed through with water by
depressing the cold water dispense button. (Please note carbon filters should be
pre-flushed before commissioning the WL4 Firewall so that excessive carbon fines
do not get into the WL4 Firewall tanks and solenoids). When the WL4 Firewall stops
filling, flush 10 litres of water through the WL4 Firewall by depressing the cold, spar-
kling and hot buttons. Turn on the green heater and compressor switch (rear) and
the WL4 will start to heat and cool.
10.
The water temperature of the WL4 Firewall is factory set at 5°C for still and spar-
kling water and 87°C for hot water. The temperature can be adjusted - see page 34
‘PCB Programming Procedures’.
11.
Lift the top cover (power is isolated by top cover switch) and carry out a visual
inspection for any water or CO2 gas leaks.
12.
Replace any covers and now test the water for taste. Any hint of plastic taste in
the water means the WL4 Firewall needs to be flushed with an additional 10 litres.
13.
The WL4 Firewall should be sanitised at installation. ‘Sanitising or Descaling’.
14.
The WL4 Firewall must not be installed in direct sunlight, adjacent to a heat
source, or in an ambient room temperature above 30°C or below 5°C
Instructions
on Changing the CO
2
Bottle
REMOVING THE EMPTY CO2 BOTTLE
Turn off the empty bottle and disconnect from gas regulator.
CONNECTING NEW CO2 BOTTLE
• Before connecting new Co2 bottle, remove dust cap.
• Face the gas bottle away from yourself and purge the bottle for 2 seconds
to re lease any air and clean any dirt or dust from the top of the bottle.
• Connect bottle to gas regulator and turn on. The pressure should read 3 Bar.
Adjust if needed.
PuRGING THE WL4 FIREWALL
• Lift the yellow lever under top cover for 5-10 seconds to purge the gas line
and carbonator.
• Place a container of at least 5 litre under the faucet and dispense sparkling
water until just gas is dispensed from the faucet. The WL4 Firewall will now refill.
This takes about 4 minutes. When the pump has stopped turn the gas bottle off.
• Record the regulator pressure, normally 3 Bar. After 5 minutes check the gauge
for any pressure drop as this indicates a leak. Remember to turn on the CO2 bottle!!
