McQuay MDS030A Manual page 38

Return Air and Supply Air Direction
Drawings for piping connector and its dimension (unit: mm):
air outlet
Notes:
• Do not close all air outlet of indoor unit when start to run the unit to avoid the frost of evaporator.
• To ensure the thickness of insulation material and no leakage allowed.
• Fresh air shall be less than 20%.
Air Tightness of Outlet of Supply Air
• Total 4 air outlet can be sealed by insulation material but more than 2 air outlet closed will cause abnormal
operation of units.
• Open the front panel, to seal the air outlet in front panel.
• To ensure the length of insulation material is the same length of the air outlet.
• To extend the insulation material to cover the gas more than 10mm but not touch the air grill; there is no
need to extend insulation material more than 10 mm.
Installation of Air Inlet Grill
• Before installation of air inlet grill, to install the air filter.
• To ensure the right side to face the grill.
• Be careful to install the air filter in the frame of air filter supporter.
• To fix the filer with the front panel.
• To fix the grill and consider the service friendly to open the grill.
Installation of Drainage
a. Drainage piping shall be with slope 1/100.
b. To fix the drainage piping with long screw bolt.
c. After installation, to test the leakage drain to make sure it work.
d. Only in cooling mode, there will be detect of drainage status.
supply air
return air
supply air
supply air
supply air
fresh air inlet
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