Normal Operating Pressure - Hitachi RCUE40AG1 Installation, Operation And Maintenance Instructions

MAINTENANCE
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11.13. NORMAL OPERATING PRESSURE

Check to ensure that Chiller is operating within the working
range as shown below, after at least 15 minutes operation.
For R407C
Condenser Air Inlet Temperature (°C)
#
CAUTION:
! Periodical Maintenance
Perform periodical maintenance according to the
"INSTRUCTIONS" to maintain the unit in a good
condition.
! Fire
If a fire accidentally occurs, turn OFF the main switch
and use an extinguisher for an oil fire and electric fire.
! Flammable Gases
Do not operate the unit near the flammable gases
such as lacquer, paint, oil, etc. to avoid a fire or an
explosion.
! Service Panels and Electrical Box Cover
Turn OFF the main switch when service panels or
electrical box covers are removed for setting the
temperature.
Do not operate the unit without fixing panels.
! Heated Pipe
Do not touch the parts at discharge gas side by hand,
since the pipes at the discharge side are heated by
refrigerant and temperature becomes higher than
°
100 C.
! Use
Do not utilise this unit for cooling of drinking water or
food. Comply with local codes and regulations.
! Failure
Turn OFF all the main switches if refrigerant leakage
or chilled water leakage occurs. Also, if the unit can
not be stopped by the control switch, turn OFF all the
switches for power source.
Standard Working Range
Chilled Water Outlet Temperature (°C)
Standard Working Range
-Conditions-
Compressor: 100 % Load
Condenser Fans: 2 or 4 Fans Running
For R22 (OPTION)
Standard Working Range
Condenser Air Inlet Temperature (°C)
! Activation of Safety Device
In the case that one of safety devices is activated and
unit is stopped, remove the cause of the stoppage
and restart the unit. The protection devices are
utilised to protect the unit from an abnormal
operation.
Therefore, if one of safety devices is activated,
remove the cause by referring the "Troubleshooting"
in the "INSTRUCTION" or call the local agency.
! Fuse
Utilise a fuse with specified capacity. Do not use a
steel wire or a copper wire instead of a fuse. If an
incorrect wire is utilised, a serious accident such as a
fire will occur.
! Safety Devices
Do not make a short-circuit at the protection line. If a
short-circuit is made, a serious accident will occur.
! Setting of Safety devices
Do not change the setting of safety devices, if
changed, a serious accident will occur.
Do not touch any electrical parts except for the
operation switches during the operation.
Do not press the button on the magnetic switch. If
pressed, a serious accident will occur.
each Cycle