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8. INSPECTION
Use a copy of “12. [a] DAILY INSPECTION SHEET” and “12. [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 “2. [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.
[e] CELL RUN TIME, CURRENT, VOLTAGE (AS REQUIRED)
To check the cell run time, current, and voltage:
1) Open the door.
2) Turn on the power switch (
earth leakage circuit breaker).
3) Press the display select button on the control panel.
4) Press the display select button until the desired item appears in the
display.
Note: It is factory adjusted to display the cell run time first.
5) Close the door.
[f] WATER HARDNESS (WEEKLY)
IMPORTANT
Continuous use with hard water may cause clogged pipes,
reduction in performance, or failure of the electrolytic cell. If
sampled water is hard, contact an authorized Hoshizaki service
company.
1) Open the water sampling tap. Let water run for more than 5
seconds. Sample water in the measuring cup.
2) Pour one or two drops of the water hardness indicator into the
measuring cup, and stir a little. Check the water hardness (red =
hard water, blue = soft water).
Note: For details, follow the instructions of the water hardness
indicator.
[g] EARTH LEAKAGE CIRCUIT BREAKER (MONTHLY)
WARNING
Check the earth leakage circuit breaker for proper operation
once a month. If it is left inoperable, it could increase the risk of
electric shock in case of electric leak.
1) Press the test button of the power switch
(earth leakage circuit breaker).
2) Check that the switch turns off. If not,
immediately contact an authorized
Hoshizaki service company.
[h] EARTH WIRE, ATTACHMENT PLUG (ANNUALLY/BIANNUALLY)
WARNING
Check periodically that the attachment plug blades and their
vicinity are free of dust and that the attachment plug is securely
plugged into the receptacle. Dusty blades or loose connection
may cause electric shock or fire.
Check for the following problems:
Problem
Remedy
The earth wire is broken or loosely
connected.
Ask an authorized Hoshizaki
service company or licensed
electrician for repair.
The attachment plug or power cord is
too hot, damaged, weighed down, or
caught in.
Immediately ask an
authorized Hoshizaki service
company for repair.
The attachment plug blades, their
vicinity, and receptacle are dusty.
Clean.
The attachment plug is plugged into a
single receptacle with other equipment.
Plug into a separate
receptacle.
The unit shares a single power supply
with other equipment.
Use a separate power supply.
[i] CONSUMABLE/PERIODIC REPLACEMENT PARTS
Consumable parts:
pH test paper UNIV
Chlorine test paper
Water hardness indicator
Neutralizing agent
Periodic replacement parts:
Electrolytic cell (3000 hours)
9. PREPARING ELECTROLYZER FOR LONG STORAGE
WARNING
When shutting down the electrolyzer for more than a week, turn
off the power switch (earth leakage circuit breaker), and unplug
the unit to prevent electric leak, heat generation, or ignition.
OFF
Test button
