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WL850 HV Technical Manual - Version 1, November 2007
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Maintenance and Servicing
1. Every six months it is strongly recommended that the filters and UV lamp be
changed. If the model of machine is hot and cold, the hot tank may require any
build up of Calcium to be removed. The need to remove calcium from the hot tank
depends on local water conditions and the flow of water from the hot tank being
restricted.
2. To carry out the service you will need to switch off the red and the green switch
at the back of the machine and remove the machine top cover and lower front cover,
if the machine is free standing.
3. Remember there is no need to turn off the water with a Waterlogic Twist Filter; the
water is automatically isolated when you remove the filter.
4. The filter is located on the lower part of a freestanding machine behind the lower
front cover. On a mini machine the filter is under the top cover. Remove the filter
by gripping the filter head and twisting the filter body by hand clockwise (left-hand
thread).
5. Replace with a new Twist Filter.
6. Make sure you turn off the red switch at the back of the machine to isolate the
electrical power.
7. Remove the UV lamp by unplugging the UV loom connector and pulling the
lamp upward, then unscrewing the UV retaining nut located on the top shelf of both
models, and remove the Quartz Sleeve from the cold tank. Clean the Quartz Sleeve
and remove any surface lime scale that may have adhered to the sleeve surface.
Check the black O Ring for signs of perishing and change if necessary.
8. Fit the Quartz Sleeve back into the cold tank taking great care at this stage not to
crack the Quartz Sleeve by over tightening the UV retaining nut.
9. Inspect the UV loom if it shows signs of discolouration or wear, replace it.
Assemble the UV loom onto a new UV lamp and fit into the quartz sleeve. Do not
touch the UV lamp.
10. Inspect the blue faucet nipple and if it is cracked or has Calcium build up, replace
it. Please ensure that you use cleaning gloves when handling parts that come in
direct contact with the water.
11. Clean the Condenser Grill and Compressor of any dirt build up.
12. Check the air gap around the machine is not blocked.
13. Turn on the power supply and make sure only the red switch on the rear of the
machine in the on position.
14. Flush five litres of hot water (if a hot & cold machine), 5 litres of cold water and
one litre of carbonated water through the machine to ensure that the filters are
generated and the water is running clear of any carbon fines.
15. Purge the CO2 gas by lifting the yellow pressure release lever for 3 seconds.
16. Make sure that the UV lamp is alight by observing a blue glow from the top of
the UV cap. Do not remove the lamp from holder whilst ignited and do not look into
a naked UV light.
17. Inspect the water and electrical connections visually.
18. Turn on the green switch and allow the machine to cool and heat the water.
19. Check the machine is clean and functions to the customer’s satisfaction.
PARTS REqUIRED FOR 6-MONTH SERVICE
• Waterlogic Twist Filter
• UV Lamp
• UV Loom
(Only replace if required on visual inspection)
• Cleaning Materials
• De-Scaler Non Toxic
(Hot & Cold models only)
• Allow 45 minu tes
Notes:
Only trained personnel should repair and service a Waterlogic 850.
To sanitise or de-scale a machine with a Waterlogic twist filter it is necessary
to mix a solution of either de-scaler or sanitizer in a dummy filter cartridge to
flush it into the machine. Please ensure no de-scaler enters the cold or sparkling
tanks. Sanitizer and de-scaler must be flushed into the system down stream of
any Carbon filter installation, otherwise the filter will remove the sanitizer or de-
scaler being used.
Waterlogic recommend the use of sterilizing solution, vending machine surface
cleaner, and Bacterial Wipes. Please do not use any abrasive or cream surface
cleaners.
Summary of Contents for WL850HV
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