Panasonic S-25PY3E - Maintenance and Operation; Unit Maintenance Procedures; Operational Modes Explained

7

Heating performance

This air conditioner utilizes outside air for heating; its
heating performance reduces as outside temperature
decreases.
→Intheeventthatheatingisnotsufcient,pleaseusean
additional heating appliance.

Defrosting

This appliance may start defrosting operation to melt
frost formed in the outdoor unit.


Defrosting starts
: The indoor unit fan stops (or the
speed becomes extremely slow).
→“
”(STANDBY)appears.


Heating operation resumes after several
minutes
: The indoor unit fan remains stopped (or
it will run at a very slow speed) until the indoor heat
exchangercoilwarmsupsufciently.
→“
”(STANDBY)appears.

Defrosting is complete
: The indoor unit fan starts
operation.
→“
”(STANDBY)disappears.

‘‘DRY’’ operation

Once the room temperature reaches the level that was
set, the outdoor unit repeats the cycle of turning on and
off automatically.

When the room temperature is more likely to reach the
level that was set, the fan speed is set to ‘‘breeze’’ (light
wind) automatically.

Should power failure occur while the unit is
running
The unit will resume operation automatically. Operation
settings prior to power failure will be used.
WARNING

For safety, be sure to turn the air conditioner off and disconnect
the power before cleaning. (Otherwise, electric shock or injury may
result because the fan is rotating at high speed.)

Do not pour water on the indoor unit. (This may damage the internal
components and cause an electric shock hazard.)
CAUTION

Never use solvents or harsh chemicals. Also, do not wipe plastic
parts using very hot water. (This may cause deformation or change
in colour.)

Somemetaledgesandnsaresharp.Becarefulwhenyouclean
those parts. (Injury may result.)

Usearmstoolorladderwhencleaninganindoorunitinstalledin
high locations.
Maintenance
Operation Mechanism

Outdoor unit


The internal coil and other components of the
outdoor unit must be cleaned periodically.
•Consult your dealer or service center.

Air Filter Maintenance
Consult your dealer or service center when the (Filter) appears on the display of the wired remote controller.
Timer Remote Controller High-spec Wired
Remote Controller
Filter indicator
A
°
Filter indicator
Wired Remote Controller
Filter indicator

Indoor unit
(e.g. Type Y3)
Air outlet
Air intake
Wipe with a soft cloth.
(If it is very dirty, use a cloth moistened with
water.)
OI_00_331027_EN.indb 7 2021/9/1 13:03:22