Selecting The Installation Site; Installation Conditions - Mitsubishi Electric CAHV-R450YA-HPB Installation & Operation Manual

1. Selecting the Installation Site

[1] Installation Conditions

Select the installation site in consultation with the client.
Select a site to install the outdoor unit that meets the following conditions:
• The unit will not be subject to heat from other heat sources.
• The noise from the unit will not be a problem.
• The unit will not be exposed to strong winds.
• Water from the unit can be drained properly.
• The space requirements (specified on pages 8 through 10) are met.
<1> Providing protection against winds
Using the figures at right as a reference,
provide adequate protection against
winds.
A unit installed alone is vulnerable to
strong winds. Select the installation site
carefully to minimize the effect of winds.
When installing a unit in a place where
the wind always blows from the same
direction, install the unit so that the outlet
faces away from the direction of the
wind.
<2> Cold Climate Installation
Observe the following when installing the units in areas where snow or strong winds prevail.
• Avoid direct exposure to rain, winds, and snow.
• Icicles that may form under the foundation can fall and inflict personal injury or property damage. Select the
installation site carefully to reduce these risks, especially when installing the unit on a roof.
• If the units are installed in the direct line of rain, winds, or snow, install snow hoods (on both the discharge and
suction ducts). Use a snow net or snow fence as necessary to protect the unit.
• Install the unit on a base approximately twice as high as the expected snowfall.
• If the unit is continuously operated for a long time with the outside air temperature below the freezing point, install
a heater at the base of the unit to prevent the water from freezing at the unit bottom.
• Install snow hoods in regions where the outdoor temperature is -10°C or below.
Wind
• Install the outdoor unit in a place
where it is not exposed to direct wind,
such as behind a building.
7
Wind
• Install the outdoor
unit so that the outlet/
inlet faces away from
the wind.
Wind