Mitsubishi Electric ECOV-X37VA Manuel D'installation page 22

6. Installation work
• Do not install the unit indoor, in a depressed space, or in a halfway basement.
6-1. Progress of construction of building and construction conditions
Perform installation work when the building is ready for the installation of the unit.
6-1-1. Installation on the foundation
• Form the base on a level surface (inclination no more than 1.5°) and with strong and solid materials such as concrete and
angle steel to prevent the unit from toppling over under strong winds or earthquakes.
• Weakness or inclination of the base may cause abnormal vibrations or noise.
• Weakness of the base may cause the unit to vibrate, resulting in looseness or crack in the pipes.
• Generally, the base for the unit is formed with concrete. A mass of the base needs to be more than three times the weight
of the unit to support the unit and to absorb vibration. It is recommended that the mass of the base is more than three times
the weight of the unit.
Alternatively, the unit may be directly connected to a construction with strong foundation.
6-1-2. Installation bolt
• Secure the unit with anchor bolts as shown in the figure below so that the unit will not topple over.
(M12 installation bolts are to be locally procured.)
• Be sure to bolt down 4 points.
• Select the installation dimensions from the available installation holes shown in the external dimensions diagram (brochures)
according to the base.
Dimensions
<Holes in lateral direction (recommended)>
6-1-3. Anti-vibration measures
• Vibrations and noise may be transmitted from the unit
through walls and floors, depending on the installation
conditions. Take appropriate anti-vibration measures
(e.g., vibration damper pad, vibration isolation base) as
needed. (See the figure on the right.)
• The size of damper pad depends on the size and shape
of the unit installation hole.
WT09614X03_GB
Vibration damper
pad (4 places)
Installation hole 4-15×22
(slotted hole) <M12 bolt>
Base
1142
158
Dimensions
<Holes in depth direction (recommended)>
Min. 170
Vibration damper
pad (4 places)
Installation hole 4-15×22
Base (slotted hole) <M12 bolt>
1142
Leg
Unit baseplate
Vibration damper pad
Installation base
I-bar
C-channel
Angle bar
Concrete base
Sample of unit installation
22
(Unit: mm)
Min. 170
158
Risk of damage
or distortion
Vibration damper
pad (4 places)