Orion RKS250F-S Operation Manual page 27

Monthly Inspection and Maintenance / Every half year
4. Clearing a "
After cleaning condenser and the filters, clear the operating-hour timer for "
● Clearing the "
①Hold down the RESET switch on the control plate for 5 seconds or longer.
②The digital display indicates that the clearing is completed by causing "
to blink in turn for 5 seconds. (The 500-hour counting starts at this point.)
5. Water circuit inspection
In order to keep the water in the water circuit clean, inspect once a month, and replace the water in
the tank if any of the following is detected. Even if no abnormalities are noticed, evaporation will occur
and concentration of impurities will increase. Therefore the water in the water tank should be
replaced once every 3 months.
(1) Foreign matter stuck to the inner wall of the water tank.
(2) Slime is detected if a finger is run across the inner wall of the water tank.
(3) Foreign matter is either floating on or is inside the water in the tank.
(4) There is sediment or sludge in the water tank.
(5) There is an odd smell.
(6) The water is an odd color.
See page 25, "Water Quality Management" in order to help prevent trouble due to water quality
issues.
IMPORTANT
● If the water circuit water is particularly dirty and requires frequent replacement, please consult
with your dealer to have the water circuit and water-cooled condenser chemically cleaned.
Every half year
1. Inspection for water leaking from the pump
(1) Remove the front cabinet panel.
※ See page 31, "Removing the Front Cabinet Panel" for further information.
(2) Inspect the pump itself for leaking water.
※ Condensation may form on the surface of the pump depending on the operating environment.
(3) Consult your dealer if water leakage is detected.
Disassembly and cleaning will be required in such cases.
Inspection and Maintenance
" 500-hour Filter Use Caution Alarm
"500-hour Filter Use Caution Alarm operating-hour timer
24
".
" and " "