Drummond MOV-120CN1-D Panduan Instalasi - Halaman 6
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4. INSTALLATING OUTDOOR UNIT
4.1 Important: Construction Checkpoints
Installation
Check the model and name to avoid mistaken installation.
Refrigerant pipe
The refrigerant pipes must have the specified diameter.
Nitrogen of a certain pressure must be filled into the refrigerant
pipe before welding.
The refrigerant pipe must undergo heat insulation treatment.
After the refrigerant pipe is installed completely, the indoor unit
cannot be powered on before performing the airtight test and
creating a vacuum.
Refrigerant pipe
The refrigerant pipe must undergo the airtight test [with
2
2.94MPa (30kgf/cm
G) nitrogen].
Creating a vacuum
Be sure to use the vacuum pump to create a vacuum of the
connective pipe at both air side and liquid side concurrently.
Refrigerant replenishment
If the pipe is longer than the reference pipe, the refrigerant
replenishment quantity for each outdoor unit should be
calculated through the formula obtained according to the actual
length of the pipe.
Record the refrigerant replenishment quantity, actual length of
pipe and the height difference of the indoor & outdoor units onto
the operation confirmation table (on the electric control box) of
the outdoor unit in advance for future reference.
Electric wiring
Select the power supply capacity and wire size according to the
design manual. The power wire size of the air conditioner should
be greater than that of ordinary motors.
In order to prevent misoperation of the air conditioner, do not
interleave or entwine the power cable (220V 3N~ 60Hz) with the
connection wires (low-voltage wires) of the indoor/outdoor unit.
Power on the indoor unit after performing the airtight test and
making a vacuum.
Trial run
Perform the trial run only after the outdoor unit has been
powered on for over 12 hours.
4.2 Installation Space
When installing the unit, leave a space for maintenance shown
in the following figure. Install the power supply at the side of the
outdoor unit. For installation procedure, see the relevant
installation manual.
Ensure enough space for installation and maintenance.(see
Fig.4-1 and Fig.4-2)
Air intlet
Installation & maintenance surface
1000 mm
1000 mm
1000 mm
Top view of the outdoor unit (multiple units installed)
In case any obstacles exist above the outdoor unit, such
obstacles must be 2000mm above the outdoor unit.
If miscellaneous articles are piled around the outdoor unit, such
articles must be 400mm below the top of the outdoor unit.
4.3 Convey Outdoor Unit
Use 4 steel ropes of a f6mm or bigger size to hoist the outdoor
unit and convey it into the room.
In order to prevent scratch and deformity the outdoor unit, apply
a guard board to the surface of contact between the steel wire
and the air conditioner.
Remove the cushion for use in the transport after finishing the
transport.
Steel wire
Guard board
Air outlet
Air inlet
Fig.4-1
200 mm
1000 mm
Fig.4-2
NOTE
Fig.4-3
Installation Manual
5