Warning & Cautions; During Product And Electrical Installation; During Operation - Hitachi RCUE40AG2 Service Manual

Test run
2.5.Warning & Cautions 2.5.Warning & Cautions 2.5.Warning & Cautions

2.5.1. During product and electrical installation


WARNING

2.5.2. During operation


WARNING

Fig.10

Fig.11

Fig.12

Fig.13

Fig.14
pag. 28
SMGB0003 rev.0-01/2007
Installation must be performed by distributors or specialists. Inadequate
−
installation may cause water leakage, electrical shock or fi re.
Electrical work must be performed by person with qualifi cation. Inadequate
−
electrical work may cause electrical shock.
Confi rm if earth wire is connected. Earth wire is determined according to the
−
technical criteria of electrical installation.
Do not use wire or copper wire in stead of a fuse inside the unit or in the switch
−
for power source. It may cause heat or fi re in case of abnormal current.
Confi rm if fuse is correct and adequate. In case of setting inadequate fuse, like
−
high volume fuse, fuse would not melt in spite of abnormal current, and cause
fi re. See installation check manual attached with the unit for correct fuse volume.
Confi rm the open/close state of valves according to label or operation manual.
−
Especially, confi rm if inlet valve is open in those products that have inlet valve
of condenser. Operation with the valve close may cause explosion due to the
abnormal increase of high pressure.
Use only specifi ed refrigerant. Nitrogen gas should be used in air tight test. The
−
use of combustible gas like oxygen and acethylene may cause fi re or explosion.
Do not touch the switch with wet hand. It may cause electrical shock (fi g.10).
−
Do not use any sprays such as insecticide, lacquer, hair spray or other
−
fl ammable gases near the unit. It may cause fi re. (fi g.11)
Do not operate with cover of electrical box open. To touch the electrical part may
−
cause electrical shock.
Turn OFF all power source immediately in case that unit is not stopped in spite
−
of the stop operation or that refrigerant is leaked or chilled water is discharged. It
may cause electrical shock, fi re and explosion. Contact a distributor of Customer
Service Centre of manufacturer in such case. (fi g.12)
Do not press repeatedly the operation switch. It avoids a normal activation of
−
protection device and may result in failure, electrical shock and fi re.
Turn OFF main power in case of safety devise is activated frequently or
−
operation switch is not activated steadily. There is a possibility of ground leakage
or overcurrent and may result in electrical shock or fi re. Contact a distributor of
Customer Service Centre of manufacturer in such case. (fi g.12)
Safe refrigerant (Fluorocarbon), incombustible, non-toxic and odourless, is used.
−
In case that Fluorocarbon is leaked and touched with fi re, it would be a cause
of toxic gas production and of lack of oxygen. Contact a distributor of Customer
Service Centre of manufacturer in such case. (fi g.13)
Do not put fi ngers or sticks etc into the air inlet and outlet. These units have high
−
speed rotating fans and it is dangerous that any object touches them.
Do not remove the protection net air inlet and outlet. These units have high
−
speed rotating fans and it is dangerous that any object touches them.
Do not touch hot temperature parts. It may cause burn. (fi g.14)
−