Mitsubishi Electric PUHZ-SHW80VHA Service Manual page 107

1 3- 1 - 2 . P A R - 2 1 M A A
Reduces maintenance work drastically.
Enables you to check operation data of the indoor and outdoor units by remote controller.
Furthermore, use of maintenance stable-operation control that fix es the operating freq uency, allows smooth inspection, even for
inverter models.
Smooth Mainte-
nance Function
Easy maintenance information (unit)
Compressor Outdoor unit
Accumulated operating Heat ex c h anger
1 4
time (o10 hours) temperature (:)
Number of ON/ OFF Discharge
2 5
times (o10 times) temperature (:)
Operating Outside air
3 6
current (A) temperature (:)
* The filter operating time is the time that has elapsed since the filter was reset.
1 3- 2 . M A I N T E N A N C E M O D E O P E R A T I O N M E T HO D
Note: If you are going to use 13-3. "GUIDE FOR OPERATION CONDITION", set the airflow to "High" before activating maintenance mode.
S witc h ing to maintenanc e 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 3 seconds to switch to maintenance mode.
TEST
A
[Display ]
MAINTENANCE
If stable operation is unnecessary or if you want to check the data with the air conditioner stopped, skip to step (4).
F ix ed Hz op eration
The operating freq uency can be fix e d 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
A
[Display ] operation
COOL
STAB LE MODE
(3) Press the
( ) button to confirm the setting.
FILTER
D
[Display ] Waiting for stabilization
OCH526C
D isc h arge temp erature 6 4 :
Indoor unit
Intake air
7
temperature (:)
Heat ex c h anger
8
temperature (:)
Filter operating
9
time* (Hours)
n Remote controller button information
A
D
Compressor information Outdoor unit information Indoor unit information
Operation mode
Stable heating
operation
HEAT
STAB LE MODE
l Conventional inspection work
l Outdoor unit l
Remove the
service panel.
Measure the discharge
temperature.
C B
Confirm
Activate/ cancel maintenance mode
Stable operation
cancellation
STAB LE MODE
CANCEL
l Indoor unit l
Measure
the intake air
temperature.
Measure the outside air
temperature
Stabilized
After 10 to 20 minutes