22
23
and fill the cold tank with a mix of water and sanitisation fluid.
7.
Replace the UV lamp and reconnect the UV loom. Do not touch the UV lamp with
your bare hands as this will shorten the lamp life.
8.
Machines with the Hot Option. Remove and inspect the faucet. If the faucet is
cracked or has excessive build of calcium that cannot be easily cleaned then replace
the faucet. Please ensure that you wear cleaning gloves when handling the faucet.
9.
Pre flush the carbon filters outside the WL 4 Firewall to waste and then fit into the
WL 4 Firewall screwing in anti clockwise.
10.
De-scale the hot tank if required.
11.
Carry out a visual inspection of the WL 4 Firewall’s water and electrical connections
and components and take any remedial action required to prevent a fault.
Clean the refrigeration condenser and fan if required.
12.
If servicing a sparkling water unit turn back on the CO2 and purge the system
by lifting the yellow CO2 relief valve lever located beside the UV lamp assembly for
1 second. Check the regulator pressure is set at 45 PSI and there are no CO2 leaks.
13.
Close the top cover, reconnect the power cord and turn on only the red switch
at the rear of the WL4 Firewall. The WL4 Firewall will go through a self test cycle,
the icons will light up. The sparkling water will fill automatically. But if it is a Cold only
or Hot & Cold WL4 Firewall then you will need to manually ill the WL4 Firewall by
depressing the cold water button. You will also need to fill the Hot Tank manual by
depressing the two hot dispense buttons until water is dispensed.
14.
Flush the sparkling and still or ambient water for about 10 litres to generate the
filters or until all traces of Chlorine have been removed. This can be checked by
using Chlorine test strips. Flush the hot tank to ensure it is full of water and then turn
on the green switch at the rear of the WL4 Firewall. The unit will now heat and cool.
15.
Wipe the outside surfaces (non abrasive cleaner), clean the drip tray, check
there is a 5 cm air gap around the WL4 Firewall
16.
Taste the water, ensure there are no carbon fines in the water, check the WL4
Firewall functions to the customer’s satisfaction. Should there be any taste issues or
carbon fines still in the water then flush the WL4 Firewall again.
SANITISING OR DESCALING
Please ensure that you do not accidentally drop sanitiser or de-scaler on any of the
WL4 Firewall’s water or electrical connections.
1.
An empty filter housing, as used on the AMETEK filter system fitted with in and
out pipe fittings, will be needed to mix the sanitizing solution. Flush the solution into
the machine from the rear bulkhead. Sanitising the machine using this method will
allow the whole cold water system from entry to exit to be sterilised, including the
carbonation pump.
2.
Mix a solution of sanitiser in the empty filter housing.
3.
Turn off the water supply to the WL4 Firewall, release the internal water pressure
by momentarily pushing the cold water button. Disconnect the water feed pipe from
the rear water in bulkhead of the machine.
4.
Fit the water feed pipe to the inlet side of the filter housing with the sanitiser in.
Connect a length of 1/4” inch water pipe from the outlet of the filter housing to the
water ‘IN’ bulkhead at the rear of the machine.
5.
Release the top cover of the machine by sliding the top cover locking lugs,
located either side of the faucet nipple, inward. Slide the top cover forward and then
lift it upward and back onto it hinges. Hold the top cover open using the support
strut located on the left hand side panel. The internal power to the WL4 Firewall is
isolated when you lift the top cover.
6.
Bypass the WL4 Firewall internal twist filters as no sanitiser should enter the filters.
These can be bypassed by using dummy (empty) filters. (same applies for de-scale)
7.
Close the top cover, the WL4 Firewall will go through a self test cycle, when this
is completed flush the cold water until the sanitiser exits the faucet. If sanitizing a
sparkling water WL4 Firewall flush the sparkling water again until the sanitiser exits
the faucet. Please ensure no sanitiser is allowed to enter the hot tank. Let the WL4
Firewall stand for a minimum of 15 minutes and then flush out the sanitizing solution.
Replace or refit the filters, remove the empty filter housing and reconnect the water
supply to the WL4 Firewall.
8.
Replace the faucet nipple if it is scratched, cracked, or has calcium build up on it.
9.
Clean all outside surfaces of the machine, including the fold down cup stand.
Remove and clean theWL4 Firewall’s drip tray and grill.
10.
The above method can be used to remove calcium from the hot tank by using a
non toxic de-scale solution or powder (citric acid based) and flushing the hot water
buttons instead of cold. Please read de-scale packet instructions.
FAuLT FINDING
All fault finding procedures must be carried by a technician trained by Waterlogic
International or their nominated distributor. Please take great care and suitable
health and safety measures when fault finding on live electrical parts.
Waterlogic 4 Firewall Technical Manual - Issue A, October 2010
