WaterLogic WL3 Firewall Technical Manual page 13

3. Measure 45ml of Aqua Dosa sanitising fluid into the empty filter housing and
securely fasten the filter head.
4. Insert the water feed pipe into the inlet fitting of the inline filter housing containing
sanitisation fluid. Attach a length of ¼" water pipe into the outlet fitting and insert
the other end of the pipe into the bulkhead at the rear of the machine.
5. Remove the filter cartridge from the filter inside of the machine to avoid the
mixing of sanitisation fluid and the active carbon, reattach the filter head securely.
(The filter head can also be bypassed during sanitisation)
6. The water supply to the machine can now be turned on.
7. Dispense cold water until the sanitisation fluid leaves the faucet, this can be
checked by pressing the cold button until the colour of the test strip has changed to
indicate the presence of the Sani fluid (Normally about 400-500ml of water needs
to be dispensed). If the machine has a carbonated option depress the cold button
until 200ml of water has been dispensed and then depress the carbonated button
and dispense the same amount of water, use the test strips to ensure the sanitisation
fluid has reached the cold and the sparkling tanks. Do not let any sanitisation fluid
enter the hot tank.
8. Leave the sanitisation fluid inside the machine for a minimum of 10-15 minutes,
when this time has been reached, flush water through the machine until there is
no sanitisation fluid left inside. Fit a new filter cartridge into the internal filter and
remove the empty filter housing from the back of the machine, connect the water
feed pipe directly into the bulkhead and turn the water supply on.
9. Inspect the faucet nipple and clean or replace if it is damaged or if there is a
calcium build up around it.
10. Isolate power to the machine, then remove the quartz spiral by undoing the
three screws on the top of the Firewall housing, disconnecting the UV sensor and
water pipe, and removing the UV lamp. Inspect the spiral for any damage or calcium
build up, if there is a large amount of calcium remove and replace the spiral and
send it away to be treated by an ultrasonic bath.
11. Using the antibacterial wipes, sufficiently clean the exterior panels of the machine,
including the drip tray and grill.
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DE-SCALING
You will need the following items to descale the hot tank.
• A container that can hold 5 litres of water
• Funnel or squeeze bottle
• Syringe
• Star/Phillips screwdriver
• Descaling solution
1. Allow the machine to heat the water up to normal operating temperature, as the
water inside the tank needs to be hot for the descaling solution to work effectively
(Scale Kleen)
2. Isolate the power by disconnecting the power lead at the rear of the machine.
Remove the top cover from the machine by undoing the two screws at the back of
the lid and lift the panel in an upward motion.
3. Disconnect the silicone tubing from the faucet nipple, leave the other end attached
to the outlet at the top of the hot tank.
4. Drain 50-100ml of hot water from the machine into a container, using the drainage
valve at the rear of the machine. Then use the hot water from the machine to make
your descaling solution, following the manufacturer's instructions of the descaler.
5. If you are using a syringe then draw up the solution into the syringe and insert
it into the open end of the silicone tubing, this should be done slowly as doing this
process too quickly can result in the tank overflowing. If doing this with a funnel use
the same process except you will pour the solution into the funnel connected to the
silicone tube, add the solution in stages to prevent the hot tank overflowing.
6. Allow the solution to remain in the tank for 5 – 10 minutes, re-attach the silicone
tubing to the faucet nipple, replace the top cover and then re-connect the power
lead, and flush through the hot tank by dispensing water from the hot option. You
will need to flush approx. 4-8 litres of water.
7. Open the top cover and check for leaks and then replace the top cover and
secure it using the two screws
8. Smell and then taste the water and flush more water through the tank if needed.
WL3 Technical Manual - Version 1, July 2014
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