Mitsubishi Electronics PUZ-A24NHA2-BS Easy Maintenance Function, Switching to maintenance mode

11 EASY MAINTENANCE FUNCTION

●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 fixes the operating frequency, allows smooth inspection, even

for inverter models.

Smooth Mainte-	Discharge temperature 147˚F	● Conventional inspection work
nance Function

Easy maintenance information (unit)

	Compressor		Outdoor unit		Indoor unit
1	Accumulated operating	4	Heat exchanger	7	Intake air
	time (o10 hours)		temperature (˚F)		temperature (˚F)
2	Number of ON/OFF	5	Discharge	8	Heat exchanger
	times (o10 times)		temperature (˚F)		temperature (˚F)
3	Operating	6	Outside air	9	Filter operating
	current (A)		temperature (˚F)		time* (Hours)

* The filter operating time is the time that has elapsed since the filter was reset.

●Outdoor unit ●

Remove the

service panel.

Measure the discharge

temperature.

●Indoor unit ●

Measure the intake air temperature.

Measure the outside air temperature

11-1.MAINTENANCE MODE OPERATION METHOD

*If you are going to use the "11-2.GUIDE FOR OPERATION CONDITION", set the airflow to "High" before activating maintenance mode.

●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.

w Maintenance information can be viewed even if the air conditioner is stopped.

■Remote controller button information

A C B

D

Operation mode Compressor information Outdoor unit information Indoor unit information Confirm

Activate/cancel maintenance mode

(1) Press the TEST button for 3 seconds to switch to maintenance mode.

[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).

●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 MODE button to select the desired operation mode.

[Display A]

Stable cooling		Stable heating		Stable operation
operation		operation		cancellation
	COOL		HEAT		STABLE MODE
	STABLE MODE		STABLE MODE		CANCEL

(3) Press the FILTER ( ) button to check the setting.
[Display D] Waiting for stabilization	Stabilized

After 10 to 20 minutes

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