Maintenance - Hitachi P-AP160NA1 Installation And Operation Manual

Maintenance

Relay wire
Indoor unit wiring
connection
Clamp the extra length of the relay wire by the plastic band and
store it at inside the ceiling.
b. Draw out the relay wire from the corner pocket of the air
panel. Connect the wiring for motion sensor at the corner
pocket cover to the relay connector. After connecting, co-
ver the relay connector connection by the wiring cover and
fix the wiring cover by the plastic bands.
8.3 WIRING CONNECTION FOR AIR PANEL
1 The following connectors are used in the air panel. Remove the tape fixing the wiring connectors on the air panel and pull out them
as shown in the figure below. Connect them with the wiring connectors on the indoor unit.
2 After completing the wiring connection of the air panel, attach the air inlet grille. Perform the attaching work in the reverse proce-
dure of removing.
9 MAINTENANCE
Do not operate the system without the air filter to protect the indo-
or unit heat exchanger against being clogged.
Turn OFF the main power switch before taking out the filter. (The
previous operation mode may appear.)
9.1 TAKE OUT THE FILTER
1 Open the air inlet grille after pushing the two knobs toward the
arrow mark.
Air inlet grille
19 PMML0280A rev.1 - 09/2014
Fixing plate
Relay connector
Electrical box
Knob
c. Catch the band at the rear side of the corner pocket cover
with motion sensor onto the projection at the air panel.
d. While pushing the wiring into the corner pocket, insert the
fixing hooks (2 portions) at Ⓐ to the square hole at the air
panel, and push the corner pocket cover. Then, insert and
push the fixing hook (1 portion) at Ⓑ to the square hole at
the air panel.
N O T E
• Catch securely the band onto the projection. If not, the comer
pocket cover may fall down when removing it so that may cau-
se injury.
• Catch securely the fixing hooks of the corner pocket cover to
the air panel. If not, the fixing hooks will be damaged.
Condition without air
intake grille
Motor wiring for auto louver
(on air panel) (connector for
low voltage: 18 poles, white)
Motor wiring for auto louver
(on indoor unit) (Connector
for low voltage: 18 poles,
white)
The indication, "FILTER" is shown on the display of the remote
control switch. Take out the air filter according to the indicated
steps for each unit.
2 Hold the lower side of the air inlet grille keeping it inclined. Re-
move the hooks of air filter from the air inlet grille and remove
the air filter.
Air inlet grille
Air filter
Upper part of filter
Hook
Hook
Lower part of filter