Service manual
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Table
No. Name No. Name
1 Hanger 5 Filter Screen
2 Return Air Duct 6 Main Air Supply Duct
3 Canvas Duct 7 Air Supply Outlet
4 Return Air Inlet 8 Plenum Box
b. Installation of the Round Air Supply Duct
4
3
2
5
1
876
9
Table
No. Name No� Name
1 Hanger 6 Transition Duct
2 Return Air Duct 7 Air Supply Duct
3 Canvas Duct 8 Diffuser
4 Return Air Louver 9 Diffuser Joint
5 Air Supply Outlet
c. Installation Steps of the Round Air Supply Duct
1) Preinstall the outlet of the round duct on the transition duct and then x it by the self-tapping screw.
2) Place the transition duct to the air outlet of the unit and x it with rivet.
3) Connect the outlet to the duct and then tighten them with tape. Other installation details are not covered herein.
CUATION:
a. The maximum length of the duct means the maximum length of the air supply duct plus the maximum length of
the return air duct.
b. 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 can not be less than 200mm.
c. 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 tting 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 SINCLAIR is the
transition duct 200mm long and round air outlet φ200, however, those of other specications can be purchased.
4�2 Installation of Cassette Type
4.2.1 Before Installation
Check if there is any damage to the indoor unit, and the wireless controller and other part and components are
prepared completely.
4.2.2 Installation Site
Select install location of the indoor unit
a. Obstruct should put away from the intake or outlet vent of the indoor unit so that the airow can be blown though
all the room.
b. Make sure that the installation had accord with the requirement of the schematic diagram of installation spaces.
c. Select the place where can stand 4 times of the weight of the indoor unit and would not increase the operating
noise and oscillate.
d. The horizontally of the installation place should be guaranteed.
e. Select the place where easy drain condensated coagulated water, and easy connect with outdoor unit.
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