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3.4. Transporting the unit
WARNING
Do not touch the fi ns. Otherwise, personal injury could result.
CAUTION
When carrying the unit, hold the handles on the right and left sides and be careful.
If the outdoor unit is carried from the bottom, hands or fi ngers may be pinched.
Hoisting method
• When hoisting the outdoor unit, hook the rope on the outside of the foot as shown in the fi gure.
• Use suf fi ciently strong rope to bear the unit’s weight.
• Place protective board or fi ller cloth at the place where the cabinet may come into contact with the rope to prevent damages. Without using them, the cabinet may be damaged or deformed.
• The center of gravity of the outdoor unit is shifted to the right. Be careful not to tilt to the heavy side causing it to fall.
• To prevent accidents caused by the unit swinging or falling down, do not apply any impact to the unit when it is hanging.
• When hoisting, do not hook the rope to the thermistor holder on the back of the outdoor unit.
Capacity
(BTU/h class)
65,000
Product mass
(Kg)
163
700 to
1000 mm
Protective boards
Foot
Light side
Lifting by forklift
• When using the forklift to lift the unit, pass the forklift arms through the opening space of the wooden delivery pallet.
• Be careful not to damage.
Heavy side
Carrying by hand
• Carry slowly in the manner as shown on “Fig. B” holding the handles “Fig. A” in right and left sides. (Be careful not to touch with hands or objects.)
• Be sure to hold the handles on the sides of the unit. Otherwise, the suction grilles on the sides of the unit may be deformed.
Fig. A
Handle
Handle
Wooden delivery pallet
Handle
Fig. B
3.5. Installing the unit
• Install 4 anchor bolts at the locations indicated with arrows in the figure.
• 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 80 mm 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 connection pipes.
• Secure the unit to a solid block using foundation bolts. (Use 4 sets of commercially available M10 to M12 bolts, nuts, and washers.)
• The bolts should protrude 20 mm. (Refer to the figure.)
• If overturning prevention is required, purchase the necessary commercially available items.
195
80
688 195
80
Unit: mm
Air
Bolt
Nut
Base
• Do not install directly on the ground, this may result in equipment failure.
• The drain water is discharged from the bottom of the equipment. Construct a drain ditch around the base and discharge the drain water properly
• Provide ample space for ice buildup from condensate between the bottom of the unit and the flat surface on which it is mounted. Otherwise, there is risk that the drainage water will freeze between the device and the surface, disabling drainage.
Base
CAUTION
If the unit is installed in a region that is exposed to high winds, freezing conditions, freezing rain, snow fall or heavy snow accumulation, take appropriate measures to protect it from those elements.
To ensure stable operation, the outdoor unit must be installed on a raised stand or rack, at or above the anticipated snow depth for the region.
The installation of snow hoods and drift prevention fencing is recommended when blowing and drifting snow is common to the region.
4. PIPE SELECTION
4.1. Selecting the pipe material
CAUTION
Do not use existing pipes.
Use pipes that have clean external and internal sides without any contamination which may cause trouble during use, such as sulfur, oxide, dust, cutting waste, oil, or water.
It is necessary to use seamless copper pipes.
Material: Phosphor deoxidized seamless copper pipes.
It is desirable that the amount of residual oil is less than 40 mg/10 m.
Do not use copper pipes that have a collapsed, deformed, or discolored portion
(especially on the interior surface).
Otherwise, the expansion valve or capillary tube may become blocked with contaminants.
Improper pipe selection will degrade performance. As an air conditioner using R410A incurs pressure higher than when using conventional refrigerant, it is necessary to choose adequate materials.
• Thicknesses of copper pipes used with R410A are as shown in the table.
• Never use copper pipes thinner than those indicated in the table even if they are available on the market.
Table. A (Wall thickness and pipe material for each diameter)
Outside
Diameter
Wall Thickness *3 mm
6.35
9.52
12.70 15.88 19.05
22.22
mm
0.8
0.8
0.8
1.0
1.2
1.0
25.4
1.0
28.58
1.0
Material
COPPER *1
JIS H3300 C1220T-O or equivalent
COPPER *2
JIS H3300 C1220T-H or equivalent
Please select the pipe size in accordance with local rules.
*1: Allowable tensile stress ≥ 33 (N/mm 2
*2: Allowable tensile stress ≥ 61 (N/mm
2
)
)
*3: Endurance pressure of the pipes 4.2MPa
4.2. Protection of pipes
• Protect the pipes to prevent the entry of moisture and dust.
• Especially, pay attention when passing the pipes through a hole or connecting the end of a pipe to the outdoor unit.
Location
Outdoor
Indoor
Working period
1 month or more
Less than 1 month
-
Protection method
Pinch pipes
Pinch or tape pipes
Pinch or tape pipes
4.3. Refrigerant pipe size and allowable piping length
CAUTION
Keep the piping length between the indoor unit and outdoor unit within the allowable tolerance.
Capacity [BTU/h class]
Pipe diameter <Liquid/Gas> [mm (in.)]
Max. piping length (L) [m]
Min. piping length (L) [m]
Max. height difference (H)
<Indoor unit to outdoor unit> [m]
View (Example)
65,000
12.7 (1/2) / 25.4 (1)
75
5
30
L
H
En-5
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