Hitachi RAM-60QH4 Manuel De Service page 23

Connection of the connecting cords and power cord. (Outdoor unit)
• Connecting cord should be connected accordingto Fig.1, that the Indoor unit No. agree with terminal board No. of
Outdoor unit.
• Be sure to fix the connecting cord with the band as shown below. Otherwise water leakage causes short circuit or faults.
Type of grounding rod
SP-EB-2
CAUTION
• If earth line cannot be taken from
the power supply connection, use
the optional grounding rod to do
earthing.
Wiring pattern
Indoor Unit
Indoor unit no.1
Screw for ground, earth screw Screw for ground, earth screw
Terminal
board
Green-and-
Yellow
Connecting cord
Connecting cord
ø1.6 or 2.0
ø1.6 or 2.0
Terminal board
Screw for ground, earth screw Screw for ground, earth screw
For Indoor unit No. 1 For Indoor unit No. 2
Outdoor Unit
Fig. 1
• When putting two connecting cords through the band.
Screw
Insulating plate
Connecting cord
• Hold the handle of the side cover, slide down and take off the corner hook, then pull. Reverse these steps when installing.
Bind connecting cords to
make them fit between the
convex sections.
Length
900mm
Grounding rod (optional)
Indoor unit no.2
Terminal
board
Green-and-
Yellow
Terminal board
Terminal board
Power cord
• Leave some space in the connecting cord for maintenance purpose
• Secure the connecting cord along the coated part
Cord band
WARNING
Earth line and grounding rod are not supplied.
Please use optional items below.
Connection of the power cord and connecting
cord
Power cord and
Connecting cord
Screw for ground,
earth screw
• To prevent a connection error, connecting cords
Green-and-Yellow
should be bundled and taped to each respective
pipe. If connecting cords are mixed with other indoor
units, a refrigeration cycle abnormality may occur,
causing dripping.
and be sure to secure it with the cord band.
of the wire using the cord band. Do not exert
pressure on the wire as this may cause
overheating or fire.
– 22 –
Terminal indications
Indoor unit 2 Indoor unit 1
Earth line
WARNING
Securely screw in the power cord
and connecting cord so that it will not
get loose or disconnect.
Tightening torque reference value:
1.2 to 1.6 N·m (12 to 16 kgf·cm)
Excessive tightening may damage
the interior of the cord requiring
replacement.
CAUTION
WARNING
Circuit breaker
Earth