Specifications

by johnson controls
11
Installation Instructions
8
Table 4 Dimensions of the Air Supply Outlet and Return Air Inlet (unit: mm)
Item
Model
Air Supply Outlet Return Air Inlet
A B C D
EUKC(09)R
156 662 580 162
EUKC(12)R
EUKC(18)R 156 862 780 162
EUKC(21)R
156 1062 980 162
EUKC(24)R
7 Installation of the Return Air Duct
a.
in the bottom, as shown in Fig.11.
Rectangular Flange
Backward Return Air
Downward Return Air
Return Air Cover Plate
Fig.11
b.
cover plate.
c. 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.
d. 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.
e. The installation method can be chose with considering the conditions of the building and maintenance
etc., as shown in Fig.12.
1
2
5
4
4
6
1
5
3
Fig.12
Table 5 Parts and Components of the Return Air Duct
No. Name No. Name
1
4 Indoor Unit
2 Canvas Duct 5 Air Supply Duct
3 Return Air Duct 6 Access Grille