Selecting The Installation Location - Mitsubishi Electric MXZ-2D33VA Installationsanleitung

MXZ-2D42VA2 MXZ-2D53VA2 MXZ-2D53VAH2
No. of MFZ-KJ indoor units
1 unit
2 units
*1 Connect to the power switch which has a gap of 3 mm or more when open
to interrupt the source power phase. (When the power switch is shut off, it
must interrupt all phases.)
*2 Use wires in conformity with design 60245 IEC 57. Use the indoor/outdoor
connecting wire in conformity with the wire specifications specified in the
installation manual of the indoor unit.
*3 Never use pipes with thickness less than specified. The pressure resistance
will be insufficient.
*4 Use a copper pipe or a copper-alloy seamless pipe.
*5 Be careful not to crush or bend the pipe during pipe bending.
1-3. SELECTING OPTIONAL DIFFERENT-DIAMETER JOINTS
If the diameter of connection pipe does not match the port size of outdoor unit, use optional different-diameter joints according to the following table.
Port size of outdoor unit
MXZ-2D Liquid / Gas
A , B UNIT 6,35 (1/4) / 9,52 (3/8)

1-4. SELECTING THE INSTALLATION LOCATION

• Where it is not exposed to strong wind.
• Where airflow is good and dustless.
• Where rain or direct sunshine can be avoided as much as possible.
• Where neighbours are not annoyed by operation sound or hot air.
• Where rigid wall or support is available to prevent the increase of opera-
tion sound or vibration.
• Where there is no risk of combustible gas leakage.
• When installing the unit, be sure to secure the unit legs.
• Where it is at least 3 m away from the antenna of TV set or radio. Opera-
tion of the air conditioner may interfere with radio or TV reception in areas
where reception is weak. An amplifier may be required for the affected
device.
• Install the unit horizontally.
• Please install it in an area not affected by snowfall or blowing snow. In
areas with heavy snow, please install a canopy, a pedestal and/or some
baffle boards.
Note:
It is advisable to make a piping loop near outdoor unit so as to reduce
vibration transmitted from there.
Pipe length ( L )
~ 20 m
100 g additional (Total 1400 g)
200 g additional (Total 1500 g)
Optional different-diameter joints (port size of outdoor unit → diameter of connection pipe)
Refer to the installation manual of indoor unit for the diameter of connection pipe of indoor unit.
~ 30 m
100 g + {(L -20) m x 20 g/m)}
200 g + {(L -20) m x 20 g/m)}
*6 Refrigerant pipe bending radius must be 100 mm or more.
*7 Insulation material : Heat resisting foam plastic 0.045 specific gravity
*8 Be sure to use the insulation of specified thickness. Excessive thickness
may cause incorrect installation of the indoor unit and insufficient thickness
may cause dew drippage.
*9 If the outdoor unit is installed higher than the indoor unit, max. height
difference is reduced to 10 m.
*10 If pipe length exceeds 20 m, additional refrigerant (R410A) charge is re-
quired. (No additional charge is required for pipe length less than 20 m.)
Additional refrigerant = A × (pipe length (m) - 20)
6,35 (1/4) → 9,52 (3/8) : PAC-493PI
9,52 (3/8) → 12,7 (1/2) : MAC-A454JP
9,52 (3/8) → 15,88 (5/8) : PAC-SG76RJ
12,7 (1/2) → 9,52 (3/8) : MAC-A455JP
12,7 (1/2) → 15,88 (5/8) : MAC-A456JP
Note:
When operating the air conditioner in low outside temperature, be sure
to follow the instructions described below.
• Never install the outdoor unit in a place where its air inlet/outlet side
may be exposed directly to wind.
• To prevent exposure to wind, install the outdoor unit with its air inlet
side facing the wall.
• To prevent exposure to wind, it is recommended to install a baffle board
on the air outlet side of the outdoor unit.
Avoid the following places for installation where air conditioner trouble
is liable to occur.
• Where flammable gas could leak.
• Where there is much machine oil.
• Where oil is splashed or where the area is filled with oily smoke (such
as cooking areas and factories, in which the properties of plastic could
be changed and damaged).
• Salty places such as the seaside.
• Where sulfide gas is generated such as a hot spring.
• Where there is high-frequency or wireless equipment.
• Where there is emission of high levels of VOCs, including phthalate
compounds, formaldehyde, etc., which may cause chemical cracking.
Maximum amount of refrigerant
1600 g
1700 g
(Unit: mm (inch))
En-2