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22
SECTION VII
FILTER MAINTENANCE
There are three (3) water filters, a strainer, and one (1) air filter in every machine. Observe the following
procedure when changing filters:
A. WATER FILTER/STRAINER REPLACEMENT
WARNING: FILTER HOUSINGS ARE HEAVY. BE CAREFUL and ANTICIPATE THE
WEIGHT WHEN REMOVING THEM.
1. Before unscrewing the filter/strainer housing to change a filter/strainer, shut off water supply to the filter
and relieve line pressure by opening a nearby valve.
FOR STRAINER CLEANING and REPLACEMENT (refer to
diagram 2). Shut off incoming water supply and relieve pressure
by opening a nearby valve. Close valve after flow stops.
FOR SEDIMENT PREFILTER and CARBON FILTER replacement, shut off main water valve (refer to
diagram 3) and relieve pressure by opening either one (1) of the PVC sampling valves near the filters.
Close sampling valve after flow stops.
FOR POLISHING FILTER replacement, shut off the water tank PVC ball valve (refer to diagram 4) and
relieve pressure by vending 1/2 gallon (1.89 liters) of water. Unplug dispensing pump from the power outlet
(refer to diagram 5) after vend stops.
main water valve
DIAGRAM 2
DIAGRAM 3
DIAGRAM 4 DIAGRAM 5
PVC Ball Valve
Strainer
Dispensing Pump
Drain Pump