Mitsubishi Electronics PLA-A-AA Easy maintenance function This function only for A-control

9. Installing the grille

			G		9.8. Installing the intake grille (Fig. 9-11)
C		D		E	Note:
A					When reinstalling the corner panels (each with a safety wire attached), connect
					the other end of each safety wire to the grille using a screw (4 pcs,
		H			4 ⋅ 8) as shown in the illustration.
		B			* 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.)
A Screw (4 ⋅ 8) 5				F		D Refrigerant piping of the main unit
						E Drain piping of the main unit
B Corner panel
C Safety wire						F Position of the corner panel when sent from the factory (logo attached).
						* Installation in any position is possible.
	Fig. 9-11					G 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 performed on the elec- tric component box of the main unit.)

H Receiver (Only PLP-6AALM Panel)

10. Easy maintenance function [This function only for A-control]

Display example (Comp discharge temperature 147 °F)

AC B

D

By using the maintenance mode, you can display many types of maintenance data on the remote controller such as the heat exchanger temperature and compressor 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.

Maintenance mode operation procedures

(1) Press the TEST	button for three seconds to	Display A	MAINTENANCE
activate the maintenance mode.

(2) Press the TEMP. buttons to set the refrigerant address.

Display B

(3) Select the data you want to display.

Compressor information

MENU

Outdoor unit information

ON/OFF

Indoor unit information

	Cumulative			ON/OFF	Operation
	operation time			number	current
Display A		COMP ON		COMP ON		COMP ON
		x10 HOURS		x100 TIMES		CURRENT (A)
	Heat exchanger		Comp discharge		Outdoor ambient
	temperature		temperature		temperature
Display A		OUTDOOR UNIT		OUTDOOR UNIT		OUTDOOR UNIT
		H·EXC. TEMP		OUTLET TEMP		OUTDOOR TEMP
	Indoor room		Heat exchanger		Filter operation
	temperature		temperature		time
Display A		INDOOR UNIT		INDOOR UNIT		INDOOR UNIT
		INLET TEMP		H·EXC. TEMP		FILTER USE H

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.

*The filter operation time displayed is the number of hours the filter has been used since the filter reset was performed.

(4) Press the FILTER button.

(5) The data is displayed in C. (Airflow temperature display example)

Flashing

Display C

Approx.

Waiting for147 °F 10 sec.

response

* Repeat steps (2) to (5) to check another date.

(6) Press the TEST button for three seconds or press the	ON/OFF button to
deactivate the maintenance mode.

Press the		MODE		button to select the operation mode.
			Stable cooling		Stable heating	Stable operation
			operation		operation	cancellation
	Display A			COOL	HEAT	STABLE MODE
				STABLE MODE	STABLE MODE	CANCEL
Press the		FILTER		button.

Stable

Waiting for	operation
stable operation
Display D
	10-20 min.

*You can check the data using steps (3) to (5) of the maintenance mode opera- tion procedures while waiting for the stable operation.

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