25
6. Maintenance procedures
Maintenance and inspection
Frequency of maintenance and inspection
（
We recommend daily inspection to assure stable operation of our products.
）
Maintenance/inspection items
Timing
Remarks
Replacement
of
the
ion
exchange resin cartridge CPC-
P & CPC-E
(See P.11, 12)
When
appears
on
the
information display.
Replacement timing: About 700L of
raw water of 200
×
10
-4
S/m
Washing of the supply hose
strainer
(See P.27.)
Six months
Perform this earlier when raw water
quality is low.
Replacement of the piping
hose.
(See P.27.)
Two years
Check the connections every month
for water leak.
※
Deterioration of water quality indicates that you need to replace consumable parts.
※
Actual timing for replacement will differ depending on the raw water quality.
Replacing the ion exchange resin cartridges
See
“7. Connect the ion exchange resin cartridge
（
CPC-P, CPC-E
）
firmly.” on P.16 for how to
replace. The alarm is reset automatically when water quality improves after replacement.
・
Spare cartridges will gradually deteriorate during storage even if you do not use them.
Prepare new spare parts sufficiently before the expected replacement timing judged based
on the actual use status. Rough storage period is about four months.
・
We would be grateful if you return used cartridges to us using the specified letter of transmittal
attached to the new cartridge. We promote adequate disposal, recovery and recycling for
preservation of the environment. If you want to dispose used cartridges, follow the appropriate
disposing method as non-combustible waste.
・
When you replace ion exchange resin cartridges, replace both CPC-P and CPC-E cartridges
at the same time. If not, a sufficient amount of water cannot be supplied to maintain the
specified water quality.
・
After having replaced each cartridge, discharge all water at the tank discharge port on the
back when the tank has become full in order to remove initial foreign matters. Be sure to turn
power OFF before discharging since water will be supplied to the tank if power is left ON.
