En-5
4. SYSTEM CONFIGURATION
4. 1. System con
fi
guration
CAUTION
The maximum lengths of this product are shown in the table. If the units are further
apart than this, correct operation cannot be guaranteed.
Always keep to the limit on the total amount of refrigerant. Exceeding the limit on the
total amount of refrigerant when charging will lead to malfunction.
• Between
outdoor
unit
and
the farthest indoor unit
a + d
≤
50m, a + h
≤
50m
• Between
the
fi
rst separation tube and the farthest indoor unit
d
≤
40m, h
≤
40m
• Between the nearest indoor unit and the outdoor unit
a + b + e
≥
5m, a + c + i
≥
5m
• Between
outdoor
unit
and
the
fi
rst separation tube
a
≥
3m
• Difference in height between outdoor units and indoor units (H1)
30m: For the indoor unit stated below
30m: For the outdoor unit stated below
• Difference in height between indoor units and indoor units
H2
≤
15m, H3
≤
15m
• Maximum
total
equivalent
pipe
length
a + d + e + f + g + h + i + j + k
≤
80m
• Total
refrigerant
amount
≤
6.83kg
Fig. A
Outdoor
unit
Indoor
unit
d
h
i
f
e
b
c
j
k
H3
g
H1
H2
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
a
3. 5. Installation the unit
• Please
install
the
outdoor
unit
without slant. (within 3 degrees )
• Install 4 anchor bolts at the locations indicated with arrows in the
fi
gure.
• To reduce vibration, do not install the unit directly on the ground. Install it on a secure
base (such as concrete blocks).
• The foundation shall support the legs of the unit and have a width of 50mm or more.
• Depending
on
the
installation
conditions,
the outdoor unit may spread its vibration
during operation, which may cause noise and vibration. Therefore, attach damping
materials (such as damping pads) to the outdoor unit during installation.
• Install
the
foundation,
making sure that there is enough space for installing the con-
nection pipes.
• Secure the unit to a solid block using foundation bolts. (Use 4 sets of commercially
available M10 bolts, nuts, and washers.)
• The
bolts
should
protrude 20mm. (Refer to the
fi
gure.)
• If overturning prevention is required, purchase the necessary commercially available
items.
166
AIR
650
154
50
50
16
410
(Unit: mm)
Bolt
20
Nut
Base
• Do not install directly on the ground, this may result in equipment failure. Make sure
the height of the base is 50 mm from the ground. Otherwise, there is a risk that the
drainage water will freeze between the device and the surface, disabling drainage.
50 mm
or over
Base
CAUTION
In areas with heavy snowfall , where
intake and outlet of the outdoor unit can
become blocked by snow.
It is recommended that unit be installed
under a canopy or elevated on a high
stand.
Failure to do so will result in poor heating
performance and/or premature failure of
equipment.
9380545057_IM.indb 5
9380545057_IM.indb 5
2014/9/15 11:27:03
2014/9/15 11:27:03
