8
3-7. Installing the Ceiling Panel
(1)
Lift the ceiling panel and position it to align the panel
hook with the panel catch of the indoor unit.
The ceiling panel must be mounted in the correct direction.
Note that the 2 catches of the panel differ in size.
Be sure to confirm that the catches are correctly matched
between the ceiling panel and the indoor unit body.
(2)
Next, check to see that the ceiling panel is properly
aligned with the seamline of the ceiling. If it is not,
remove the ceiling panel and slightly readjust the indoor
unit body to the proper suspension point.
(3)
When the ceiling panel has been properly aligned, use
the provided 4 mounting srews (M5) with washers to
permanently fasten the ceiling panel.
NOTE
(4)
Connect the wiring connector from the ceiling panel to
the connector inside the indoor unit inside the electrical
component box. After doing the connection, use the
clamp on the indoor unit body to secure the wiring.
(5)
Install the air filter and air intake grille by performing
the steps in section 3-6 in reverse.
Be sure to rehook its safety string before closing the air intake
grille.
3-8. When removing the Ceiling Panel for
Servicing
When removing the ceiling panel for servicing, remove the air
intake grille and air filter, disconnect the wiring connector inside
the electrical component box, and then remove the 4 mounting
screws.
NOTE
Panel catch
Ceiling panel
Electrical
component box
Clamp
Ceiling panel wiring
connector
Electrical
component box
Connector of ceiling panel
Unit body
Panel catch (arrange facing downwards)
Screws M5 with washer
Air filter
Air intake grille
Fig. 3-15
3-9. Duct for Fresh Air
There is a duct connection part on sideface of the indoor unit
(Fig. 3-16).
Otherwise, an optional air-intake plenum (including duct
connection box and flange) can be attached to the indoor
unit (see table).
Air intake plenum
Type
SCMB25
25
SCMB36
36, 48
55
60
4-ø3.1 hole
ø112
For fresh air intake
Detail of fresh air intake
EG
Fig. 3-16
