Yamato Scientific CLH600 Cool Line - Manual (Page 49)

46
Handling Precautions
WARNING!
If a problem occurs
If smoke or strange odor should come out of this unit for some reason, turn off the power key
right away, and then turn off the circuit breaker and the main power. Immediately contact a
service technician for inspection. If this procedure is not followed, fire or electrical shock may
result. Never perform repair work yourself, since it is dangerous and not recommended.
Substances that cannot be used
Never use explosive substances, flammable substances and substances that include explosive
or flammable ingredients in this unit. Explosion or fire may occur. (Refer to page60 "List of
Dangerous Substances".)
CAUTION!
Do not step on this unit
Do not step on this unit. It will cause injury if this unit fall down or break.
Do not put anything on this unit
Do not put anything on this unit. It will cause injury if fall.
During a thunder storm
During a thunderstorm, turn off the power key immediately, then turn off the circuit breaker and
the main power. If this procedure is not followed, fire or electrical shock may be caused.
Thoroughly wash the unit.
The unit was washed already. However, when you first use it or operate it after a long period of
deactivation, thoroughly wash it.
Circulating fluid to be used in the external water tank
For the circulating fluid to be used in the external water tank, use an aqueous solution of
ethylene glycol 50% (Vol %) or Nybrine 40% (Vol %).
Resupply of ethylene glycol and Nybrine
Ethylene glycol or Nybrine gradually varies in density when used. If the solution is used with its
concentration lower than the appropriate level, it may freeze or its viscosity may increase, which
may result in pump malfunction. Additionally, if ethylene glycol or Nybrine gets on the control
panel, wipe it out. Electric leakage or electric shock may result.
The circulating pump protection
• Do not let the citculating pump run at idle. This may result in the circulating pump malfunction.
• Entering foreign materials into the cooler may result in damage of the circulating pump.
• When installing a solenoid valve or a throttle valve in the circulating route, do not close or
extremely squeeze it for protection of the circulating pump.
• Secure the flow amount of 1.5L/min or more for the circulating fluid.