Preparation Of Heating; Auto Restart; Setting To Disable Button Operation; Installation, Relocation, And Inspection Maintenance - Mitsubishi RC-E5 User Manual

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TROUBLE SHOOTING

The phenomena mentioned below is not malfunction.

Slapping sounds are heard.

These sounds are generated when plastic components are expanded or shrunk by the heat and rubbed with

each other.

Hissing sounds are heard

These sounds are generated when the refrigerant valve inside the air conditioning system is activated.

when the operation is

stopped or during defrost

operation.

The air conditioner starts

In case the automatic restart function is enabled, and when the power supply recovers, the system restarts

operation automatically as

the operation automatically as same condition as before power supply is cut.

soon as the power supply is

turned on.

The setting temperature

If changing the set temperature is prohibited on the remote control, it is not possible to change the

cannot be changed (the

temperature setting even ▼ or ▲ is pressed.

setting temperature display

flashes).

In case of wireless remote

In case the system is controlled by the other centralized remote control and it forbids operating the system

control, the unit does not

from the remote control, it is not possible to operate by the remote control.

operate with the inspection

display light on the indoor

unit flashing even though

any button on the remote

control is pressed.

Even if the wired remote

Is not "central controlling" or "center" displayed?

control is operated, "central

If controlled with a separately purchased center console etc., the unit cannot be operated by the remote

control" light only flashes

control.

and doesn't operate.

PREPARATION OF HEATING

CASES WHEN "

(PREPARATION OF HEATING)" IS DISPLAYED

(PREPARATION OF HEATING)" is displayed in the remote control display area in the following cases.

For wireless devices, the run/check display lamp on the main body display unit will flash green.

Setting temperature and preparation of heating are displayed on the wired remote control.

• At Starting Heating Operation

In order to prevent cool air from blowing out, the airflow into the room may be stopped depending on the room temperature at the

start of heating operation. please wait for a while and the operation automatically switches to the normal heating operation.

• At defrost operation (during heating operation)

When frost may easily formed on the outdoor unit, the heating operation automatically is stopped (both indoor/outdoor unit

stop fan operation) for approximately 5 to 10 minutes per hour and defrosting is operated. After the defrosting is complete, the

operation automatically switches back to the normal operation.

HEATING OPERATION

• Heat pump type

Heat pump type heating applies the mechanism that draws the heat from the outside air to warm up the room by means of the refrigerant.

• Defrost operation

During heating with a heat pump type air conditioner, frost will be formed on the outdoor unit if the temperature outside the room drops. If left alone, the

heating efficiency decreases. In order to deal with this, the operation is automatically switched to defrost operation to remove the frost. During the period,

the airflow of indoor/outdoor unit is stopped and "heating defrost" is displayed.

• Outer air temperature and heating capacity

The heating efficiency of heat pump type air conditioner decreases as the outside temperature becomes lower. If the capacity of air conditioner for heating

is not sufficient, please use other heating device.

• Time required until the room temperature increases

A heat type air conditioner circulates warm air to warm the entire room, so it takes a while to rise up the room temperature. It is recommended to start

operation earlier on a very cold day.

• When room temperature adjusting device operates during heating

If room temperature rises and the room temperature adjusting device is activated, the airflow becomes automatically low. When the room temperature

drops, it switched back automatically to the normal operation.

AUTO RESTART

NOTICE

An auto restart function, which is disabled at the factory setting, is applicable to the remote control. Consult your dealer.



What is auto restart

• When a power failure occurs or the power supply is turned off, the function allows the system to automatically resume operation with the remote control

setting made set before the power failure when the power supply recovers. If the system is stopped before power failure it remains stopped after the power

recover.

• Note that in the following cases it is needed to set again with the remote control.

Timer setting is cancelled. But the sleep timer recovers after power failure recovers. When recovering from a power failure, holiday setting will override

the weekly timer setting. And time setting returns to default. To return to original setting, after time setting, execute "holiday cancel".

Louver stops at the horizontal position.

CAUTION

Make sure to stop the operation before turning off the power supply when the auto restart function is enabled. (If the power supply is turned off while the

system is operating, the indoor unit fan will start immediately when the power supply is turned on. In addition, the outdoor unit starts operating 3 minutes

after the power supply is turned on.)

SETTING TO DISABLE BUTTON OPERATION

The following button operations can be disabled. If the button is pressed, "

NOTICE

and the original display returns. Consult your dealer for "

button

TEMP button

LOUVER button

MODE button

FAN SPEED button

TIMER button

INSTALLATION, RELOCATION, AND INSPECTION MAINTENANCE

☞

See below

Please observe the following points in order to use the air conditioner in a safe and comfortable manner.

Make sure to request your dealer for installation, and do not attempt to do by yourself.

☞

See right

INSTALLATION LOCATION

Is the system installed in a well-ventilated place?

Are there any obstacles? If so, it leads to the decrease of the efficiency and the increase of operation noise.

Avoid the place where cool/warm air and operation noise cause problems to your neighbors.

ELECTRICAL WORK

Caution : Make sure to perform grounding work

Do not connect the ground wire to any gas pipe, water pipe, or wires of lightning conductors and telephones. If the ground work is not good, it

may lead to electric shock.

Caution : A leakage breaker is necessary depending on the installation environment.

If it is not mounted there, it may lead to electric shock.

Only qualified specialists of electrical and grounding work can do these works according to "electric equipment technical standards".



Is the wiring designated for the air conditioner?



Is the remote control mounted correctly?

• In the case of exposed wiring, is the wiring fixed with the attached screw?

• Is the attached remote control clamps used for fixing the remote control cord?

• Is the remote control mounted at a height where children cannot reach?

RELOCATION

Warning : Make sure to consult a dealer or specialist if it is required to relocate and reinstall the air conditioning system.

If the air conditioning system is installed incorrectly, water leakage, electric shock and/or fire may occur. Note that an installation fee will be

charged for relocation and installation.

INSPECTION MAINTENANCE

Normally the efficiency of the air conditioning system will become lower after a while, because dirt accumulates inside the system. This occurs gradually in

around 3 years of use, depending on the condition of use and surrounding environment. It is thus necessary to conduct inspection maintenance in addition

to regular maintenance. We recommend you to consult the dealer from whom you purchased the system and make a contract for periodical inspection.

(charged).

OPERATION RANGE

Please use the system in the following operation range. If the system is operated outside this range, the protection controls may be activated to prevent

CAUTION

malfunction.

Condition

Room temperature

Operation

Approximately

Cooling

operation

Long continuous operation under

approximately 21°C may lead to malfunction

Dry operation

due to dewfall