TCL TCA-18HRA/DVO, Technical Manual, Page: 34 / 113

DC Inverter Air
Return air pipe
Riv et
Unit
Canvas air conduit
Canvas air conduit
Return air pipe
Return air window
Installation mode for underside air intake
Installation mode for sidewise air intake
5) Tips for Installation of Return Air Pipe and Outlet Pipe
To minimize energy loss occurring in transmission process and condensed water during heating operation,
return air pipe and outlet pipe shall be equipped with heat‐insulating layer as shown in the figure.
：
Air conditioner
Heat preserving
Plastic pin
Plastic pin Tin f oil
Return air pipe and outlet pipe shall be fixed to floor precast slabs by iron stand; in addition, all ports of the
air conduit should be tightly sealed by gasket cement, and it is advisable that the edge clearance of return air
pipe shall be 150mm at least.
Drain pipe for condensed water shall be installed with minimum gradient of 1
％
, and the drain pipe shall
be insulated with heat‐preserving pipe casing as well.
Installat ion diagram for indoor
Susp ens ion r od
Return air pipe
Outlet pipe
Canv asair cond ui t
Air- out window
Retu rn air window
（
in cludin g filter scr een
）
Precautions for Installation of Air Conduit:
1) The holes shall be reserved for the air conduits and parts to pass through the wall, slabor roofing,
and the hole size and position shall comply with the design requirements;
34 / 113
Unit Transitional a ir cond uit