4 4 4 4 . Easy Maintenance Function (Only For Power Inverter Mr. Slim); Maintenance Mode Operating Method - Mitsubishi Electric PAR-21MAA Manual

4 4 4 4 4 . Easy Maintenance Function (Only for Power Inverter Mr. SLIM)

G Reduces maintenance work drastically.
G Enables you to check operation data of the indoor and outdoor units by remote controller.
Furthermore, use of maintenance stable-operation control that fixes the operating frequency, allows smooth inspection, even for
inverter models.
G Smooth Mainte-
nance Function
G Easy maintenance information (unit)
Compressor Outdoor unit
Accumulated operating Heat exchanger
1 4
time (×10 hours) temperature (°C)
Number of ON/OFF Discharge
2 5
times (×10 times) temperature (°C)
Operating Outside air
3 6
current (A) temperature (°C)
* The filter operating time is the time that has elapsed since the filter was reset.

1. Maintenance Mode Operating Method

* If you are going to use the "Inspection Item Standards" given on page 10, set the airflow to "High" before activating maintenance
mode.
G Switching to maintenance mode
Maintenance mode can be activated either when the air conditioner is operated or stopped.
It cannot be activated during test run.
✽ Maintenance information can be viewed even if the air conditioner is stopped.
(1) Press the button for three seconds to switch to maintenance mode.
TEST
[Display A]
MAINTENANCE
If stable operation is unnecessary or if you want to check the data with the air conditioner stopped, skip to step (4).
G Fixed Hz operation
The operating frequency can be fixed to stabilize operation of inverter model.
If the air conditioner is currently stopped, start it by this operation.
(2) Press the button to select the desired operation mode.
MODE
Stable cooling
[Display A]
operation
COOL
STABLE MODE
(3) Press the ( ) button to confirm the setting.
FILTER
[Display D] Waiting for stabilization
6
Discharge temperature 64 °C
Indoor unit
Intake air
7
temperature (°C)
Heat exchanger
8
temperature (°C)
Filter operating
9
time* (Hours)
I Remote controller button information
A
D
Compressor information Outdoor unit information Indoor unit information
Operation mode
Stable heating
operation
HEAT
STABLE MODE
G Conventional inspection work
G Indoor unit G
Remove the
service panel.
Measure the discharge
temperature.
C B
Confirm
Activate/cancel maintenance mode
Stable operation
cancellation
STABLE MODE
CANCEL
G Outdoor unit G
Measure
the intake air
temperature.
Measure the outside air
temperature
Stabilized
After 10 to 20 minutes