Midea MFA-76CRN1 Technical Manual page 124

Installation of Indoor Units
2.1.3 Suspending the Indoor Unit
Use a hoisting device to hoist the indoor unit, align it with the installation screw, adjust the horizontality and
then tighten it. (Fig-8)
2.1.4 Design and Connection of Duct
• The duct design must comply with the national heating air conditioner pipeline design specifications.
• The duct accessories and materials must be produced by professional manufacturers.
• In order to prevent air flow shorting, do not keep the air inlet pipe near the air outlet pipe.
• Install a filter at an easy-to-maintain place such as intake pipe. (Otherwise, the duct will gather on the air
heat exchanger and lead to fault and water leak of the air conditioner.)
• In order to suppress noise effectively, install noise suppression and sound insulation devices, especially in
the noise-sensitive spaces such as meeting rooms.
• For connection of the flange plane, use non-flammable canvas adapter to prevent transmission of vibration.
For its size, see the indoor unit outline diagram. Use M6X20 screws (configured on site) for connection.
• All pipelines must be connected closely and soundly without leak of air. The pipelines must be adiabatic and
free from condensation.
Key points of duct connection (Fig-9)
Air outlet
124
Unit body
Fig-8
Canvas adapter
Muffle
Inspection
hole
Fig-9
R410A Tropical Split Type Technical Manual
Pendant bolt
Muffle
Air inlet
Air filter
Installation