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. Installing the grille
(Enlarged)
Screw (4 8)
Corner panel
Safety wire
10. Easy maintenance function (For PUZ-A/PUY-A application only)
Display example (Comp discharge temperature 147
PAR-21MAA
(1) Press the
button for three seconds to
TEST
activate the maintenance mode.
(2) Press the TEMP.
buttons to set the refrigerant address.
(3) Select the data you want to display.
Cumulative
Compressor
information
operation time
COMP ON
Display
MENU
x10 HOURS
Heat exchanger
Outdoor unit
temperature
information
OUTDOOR UNIT
Display
H•EXC. TEMP
ON/OFF
Indoor room
Indoor unit
temperature
information
Display
INDOOR UNIT
INLET TEMP
* The filter operation time displayed is the number of hours the filter has been
used since the filter reset was performed.
(4) Press the
button.
FILTER
(5) The data is displayed in
.
Display
* Repeat steps (2) to (5) to check another data.
(6) Press the
button for three seconds or press the
TEST
deactivate the maintenance mode.
Fig. 9-10
)
Maintenance mode operation procedures
MAINTENANCE
Display
Display
Operation
ON/OFF
number
current
COMP ON
COMP ON
x100 TIMES
CURRENT (A)
Outdoor ambient
Comp discharge
temperature
temperature
OUTDOOR UNIT
OUTDOOR UNIT
OUTLET TEMP
OUTDOOR TEMP
Heat exchanger
Filter operation
time
temperature
INDOOR UNIT
INDOOR UNIT
H•EXC. TEMP
FILTER USE H
(Airflow temperature display example)
Blinking
Approx.
Waiting for
147
10 sec.
response
ON/OFF
9.7. Installing the intake grille (Fig. 9-10)
Note:
When reinstalling the corner panels (each with a safety wire attached), con-
nect the other end of each safety wire to the grille using a screw (4 pcs,
4
8) as shown in the illustration.
*If the corner panels are not attached, they may fall off while the unit is operating.
• Perform the procedure that is described in "9.2. Preparing to attach the grille" in
reverse order to install the intake grille and the corner panel.
• Multiple units can be installed with grille so that the position of the logo on each
corner panel is consistent with the other units regardless of the orientation of the
intake grille. Align the logo on the panel according to the wishes of the customer
as shown in the diagram to the left. (The position of the grille can be changed.)
Refrigerant piping of the main unit
Drain piping of the main unit
Position of the corner panel when sent from the factory (logo attached).
* Installation in any position is possible.
Position of the levers on the intake grille when sent from the factory.
* Although the clips can be installed in any of four positions, the configuration shown here is
recommended. (It is not necessary to remove the intake grille when maintenance is per-
formed on the electric component box of the main unit.)
Receiver (Only PAR-SA9FA-E)
Only for wired remote controller.
By using the maintenance mode, you can display many types of maintenance data
on the wired remote controller such as the heat exchanger temperature and com-
pressor current consumption for the indoor and outdoor units.
This function can be used whether the air conditioner is operating or not.
During air conditioner operation, data can be checked during either normal
operation or maintenance mode stable operation.
* This function cannot be used during the test run.
* The availability of this function depends on the connecting outdoor unit. Refer to
the brochures.
Stable operation
Using the maintenance mode, the operation frequency can be fixed and the op-
eration can be stabilized. If the air conditioner is stopped, use the following pro-
cedure to start this operation.
Press the
MODE
Stable cooling
operation
COOL
Display
STABLE MODE
Press the
FILTER
Waiting for
stable operation
Display
button to
* You can check the data using steps (3) to (5) of the maintenance mode opera-
tion procedures while waiting for the stable operation.
button to select the operation mode.
Stable heating
operation
HEAT
STABLE MODE
button.
10-20 min.
Stable operation
cancellation
STABLE MODE
CANCEL
Stable
operation
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