5
8. MAINTENANCE
WARNING
1. Do not splash water directly onto the unit. It may cause short
circuit, electric shock, corrosion or failure.
2. To prevent electric shock, do not touch the attachment
plug, power switch (earth leakage circuit breaker), or other
electrical parts with damp hands.
CAUTION
1. To prevent electric shock or burn, always turn off the power
switch and unplug the unit before cleaning or inspecting the
unit.
2. Do not use combustible spray or place volatile and
flammable substances near the unit. They could catch fire
from a spark of a switch or the like.
IMPORTANT
To prevent damage to the painted or plastic surfaces, do not
use the following: thinner, benzine, alcohol, petroleum, soap
powder, polishing powder, alkaline cleaner, acid, and scouring
pad. When using a chemical cloth, follow the instructions of the
manufacturer.
[a] EXTERIOR
* The exterior is powder painted. Wipe it with warm water or a neutral
cleaner, if required. Use a damp cloth to wipe off any cleaner.
* The operation panel, salt water tank and water outlets are made of
plastic. Keep them away from impact or sharp edges.
[b] CLEANING FILTER AND SALT WATER TANK
1) Prepare a plastic bucket.
Pull out the cap, salt water
hose and filter from the
salt water tank, and put
them into the bucket.
2) Wash the filter attached
to the salt water hose with
warm water, and remove
any dirt or dust to prevent
the filter from clogging.
3) Wash the salt water tank with a neutral
cleaner to remove any salt grains or dirt. Rinse
thoroughly.
4) Wipe dry.
5) To refit the salt water hose, fit the cap on the
salt water tank, and insert the filter, then the
hose into the hole in the center of the cap.
Push in the salt water hose until the stopper
hits the cap.
[c] CLEANING SHOWER NOZZLE
When clogged, remove the shower nozzle as shown
and use a toothbrush to clean the shower holes.
Note: To prevent damage to the shower nozzle, do
not use a metal brush or knife.
[d] CHECKING WATER SOFTENER
* Check that water from the water softener is soft.
* Check that there is enough salt for refrigeration in the water softener.
* For other instructions, follow the instruction manual for the water
softener.
Cap
Salt Water
Hose
Salt Water
Tank
Stopper
[e] CLEANING WATER FILTER
Remove and clean the water filter as required.
Drain Valve
Water Supply
Pipe
Water
Supply
Pressure Gauge
Shut-off Valve
Water Softener
Water Softener Assembly
Water Filter
Dual Check Valve
(accessory)
To unit
Pressure Reducing
Valve (accessory)
9. INSPECTION
Use a copy of “14. [a] DAILY INSPECTION SHEET” and “14. [b]
MONTHLY INSPECTION SHEET” to keep records.
[a] pH, AVAILABLE CHLORINE CONCENTRATION (DAILY)
1) Drain more than 1 liter each of sanitizing water and cleaning water.
Sample each water from its outlet into separate containers.
2) Use the pH and chlorine test papers to check that each value is
within the following range.
Water
Test Paper
pH
Available Chlorine
Sanitizing
pH test paper UNIV Acidic range
—
Chlorine test paper
—
20 mg/kg (ppm)
or more
Cleaning
pH test paper UNIV
Approx. 11
—
* It is not necessary to check the available chlorine concentration of
cleaning water.
Note: See the instruction manual of each test paper for details of its
proper handling.
If any of the checked values exceeds the specified range,
contact an authorized Hoshizaki service company.
If water is not dispensed from its proper outlet, contact an
authorized Hoshizaki service company.
[b] SALT WATER LEVEL (DAILY)
Check the salt water level according to “3. [a] CHECKING AMOUNT
OF REMAINING SALT WATER”.
[c] WATER LEAKS (DAILY)
Check the unit and surrounding floor for water leaks. If any is found,
contact an authorized Hoshizaki service company.
[d] REPLACE CELL LAMP (DAILY)
Check that the replace cell lamp on the operation panel is not flashing.
The service life of the electrode in the electrolytic cell depends on
water quality. To maintain effective performance of electrolyzed
water, the electrolytic cell needs to be replaced every 3000 hours of
operation.
If the replace cell lamp is flashing, contact an authorized Hoshizaki
service company.
