14 Climate 5000 SCI – 6720887405 (2018/04)
Refrigerant Piping Connection
≈ 12 mm / 0.5 inch
Outdoor Indoor
Wall
Fig. 23.
NOTE:
When drilling the wall hole, make sure to avoid wires, plumbing, and
other sensitive components
4. Pass the drain hose through the wall hole. Ensure the water drains
to a safe location where it will not cause water damage or a slipping
hazard.
NOTE:
The drainpipe outlet should be at least 50 mm above the ground. If it
touches the ground, the unit may become blocked and malfunction. If
you discharge the water directly into a sewer, make sure that the drain
has a U or S pipe to catch odours that might otherwise come back into
the house.
7 Refrigerant Piping Connection
Safety Precautions
WARNING
• All field piping must be completed by qualified personnel and must
comply with the local and national regulations.
• When the air conditioner is installed in a small room, measures
must be taken to prevent the refrigerant concentration in the room
from exceeding the safety limit in the event of refrigerant leakage. If
the refrigerant leaks and its concentration exceeds its proper limit,
hazards due to lack of oxygen may result.
• When installing the refrigeration system, ensure that air, dust,
moisture or foreign substances do not enter the refrigerant circuit.
Contamination in the system may cause poor operating capacity,
high pressure in the refrigeration cycle, explosion or injury.
• Ventilate the area immediately if there is refrigerant leakage during
the installation. Leaked refrigerant gas is both toxic and flammable.
Ensure there is no refrigerant leakage after completing the installa-
tion work.
Refrigerant Piping with Twin Indoor Units
When installing multiple indoor units to a single outdoor unit, ensure
that the length of the refrigerant pipe and the drop height between the
indoor and outdoor units meets the following requirements:
L
L1
L2
H2
H1
The drop height
between indoor unit
and outdoor unit
must be less than or
equal to 20 m
The drop height
between two
indoor units must
be less than or
equal to 500mm
Outdoor unit
Indoor unit
Indoor unit
The line branch pipe
Fig. 24.
7.1 Notes On Pipe Length and Elevation
Ensure that the length of the refrigerant pipe, the number of bends,
and the drop height between the indoor and outdoor units meets the
requirements shown in Table 6:
Type of model Capacity
(Btu/h)
Length of
piping
Maximum
drop height
Split Inverter <15K 25 10
≥15K - <24K 30 20
≥24K - <36K 50 25
≥36K - ≤60K 65 30
Table 6. The Maximum Length and Drop Height Based on Models
(Unit: m)
CAUTION
Mark the data plate with the installed orifice (for some models).
• Please purchase the fittings strictly according to the requirements
in the manual.
• Refer to the diagram when installing. (See Fig. 25)
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