Gree GC201306 -1 Service Manual page 83

No.
1
2
3
4
5
3) Installation Steps of the Round Air Supply Duct
Preinstall the outlet of the round duct on the transition duct and then fix it by the self-tapping screw.
Place the transition duct to the air outlet of the unit and fix it with rivet.
Connect the outlet to the duct and then tighten them with tape. Other installation details are not covered
herein.
CAUTION！
The maximum length of the duct means the maximum length of the air supply duct plus the maximum
length of the return air duct.
For the unit with the auxiliary electric heating function, if the round duct is to be adopted, then the
straight length of the transition duct cannot be less than 200mm.
The duct is either rectangular or round and connected with the air inlet/outlet of the indoor unit. Among
all air supply outlets, at least one should be kept open. As for the round duct, it needs a transition duct of
which the size should match with the air supply outlet of the unit. After the fitting of the transition duct,
it is the turn of the round duct, which is better to be kept 10 meters far away from the corresponding
diffuser. The standard accessories supplied by GREE is the transition duct 200mm long and round air
outlet φ200, however, those of other specifications can be purchased.
4.2.9 Installation of the Return Air Duct
1) The default installation location of the rectangular flange is in the back and the return air cover plate is
in the bottom.
2) If the downward return air is desired, just change the place of the rectangular flange and the return air
cover plate.
3) Connect one end of the return air duct to the return air outlet of the unit by rivets and the other to the
return air louver. For the sake of the convenience to freely adjust the height, a cutting of canvas duct
will be helpful, which can be reinforce and folded by 8# iron wire.
4) More noise is likely to be produced in the downward return air mode than the backward return air mode,
so it is suggestive to install a silencer and a plenum box to minimize the noise.
5) The installation method can be chose with considering the conditions of the building and maintenance
etc.
Name
Hanger
Return Air Duct
Canvas Duct
Return Air Louver
Air Supply Outlet
Super Free Match
No.
6 Transition Duct
7 Air Supply Duct
8
9 Diffuser Joint
Service Manual
Name
Diffuser
79 INSTALLATION