Mitsubishi Electronics PFD-P250500VM-A operation manual Contents, Safety precautions

Contents

1.	Safety precautions		5	4.	“Failure” Display Lamps	8
	1.1.	Installation	5	5.	Control of Indoor Unit Inlet or Outlet Temperature	8
	1.2.	During operation	5	6.	The smart way to use	8
	1.3. Disposing of the unit		6	7.	Caring for the unit	8
2.	Names and functions of various parts		6	8.	Troubleshooting	9
3.	How to operate		6	9.	Installation, transferring works, and checking	9
	3.1.	ON/OFF	6	10.	Checking Drainage	10
	3.2.	Selecting operation	7	11.	Checking V Belts	10
	3.3.	Room temperature adjustment	7	12.	Cleaning the Indoor Unit Heat Exchanger	10
	3.4.	Time setting	7	13.	Greasing the Fan Bearings	10
	3.5.	Timer setting	7	14.	When the Unit is to be out of Use for a Long Time	10
	3.6. Selecting Normal and Check Operation		8	15.	Periodic Checks	11
	3.7.	Fault Reset	8	16.	Specifications	12
	3.8.	Others	8	17.	Warranty and Servicing	12

1. Safety precautions

sBefore operating the unit, make sure you read all the “Safety precautions”.

s“Safety precautions” lists important points about safety. Please be sure to follow them.

Symbols used in the text

Warning:

Describes precautions that should be observed avoid the risk of injury or death to the user.

Caution:

Describes precautions that should be observed to prevent damage to the unit.

Symbols used in the illustrations

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed.

: Indicates a part which must be grounded.

: Indicates that caution should be taken with rotating parts. (This symbol is displayed on the main unit label.) <Color: yellow>

: Beware of electric shock. (This symbol is displayed on the main unit label.) <Color: yellow>

Warning:

Carefully read the labels affixed to the main unit.

1.1. Installation

sAfter you have read this manual, keep it and the Installation Manual in a safe place for easy reference whenever a question arises. If the unit is going to be operated by another person, make sure that this manual is given to him or her.

Warning:

•The unit should not be installed by the user. Ask the dealer or an author- ized company to install the unit. If the unit is installed improperly, water leakage, electric shock or fire may result.

•Use only accessories authorized by Mitsubishi Electric and ask your dealer or an authorized company to install them. If accessories are in- stalled improperly, water leakage, electric shock or fire may result.

•The Installation Manual details the suggested installation method. Any structural alteration necessary for installation must comply with local building code requirements.

•Never repair the unit or transfer it to another site by yourself. If repair is performed improperly, water leakage, electric shock or fire may result. If you need to have the unit repaired or moved, consult your dealer.

•The appliance is not intended for use by young children or infirm per- sons without supervision.

•Young children should be supervised to ensure that they do not play with the appliance.

1) Outdoor unit

Warning:

•The outdoor unit must be installed on a stable, level surface, in a place where there is no accumulation of snow, leaves or rubbish.

•Do not stand on, or place any items on the unit.You may fall down or the item may fall, causing injury.

Caution:

The outdoor unit should be installed in a location where air and noise emit- ted by the unit will not disturb the neighbours.

2) Indoor unit

Warning:

The indoor unit should be securely installed. If the unit is loosely mounted, it may fall, causing injury.

3) Remote controller

Warning:

The remote controller should be installed in such a way that children cannot play with it.

4) Drain hose

Caution:

Make sure that the drain hose is installed so that drainage can go ahead smoothly. Incorrect installation may result in water leakage, causing dam- age to furniture.

5) Power line, fuse or circuit breaker

Warning:

•Make sure that the unit is powered by a dedicated supply. Other appli- ances connected to the same supply could cause an overload.

•Make sure that there is a main power switch.

•Be sure to adhere to the unit’s voltage and fuse or circuit breaker ratings. Never use a piece of wire or a fuse with a higher rating than the one specified.

6) Grounding

Caution:

•The unit must be properly grounded. Never connect the grounding wire to a gas pipe, water pipe, lightning conductor or telephone grounding wire. If the unit is not grounded properly, electric shock may result.

•Check frequently that the ground wire from the outdoor unit is properly connected to both the unit’s ground terminal and the grounding elec- trode.

1.2. During operation

Caution:

•Do not use any sharp object to push the buttons, as this may damage the remote controller.

•Do not twist or tug on the remote controller cord as this may damage the remote controller and cause malfunction.

•Never remove the upper case of the remote controller. It is dangerous to remove the upper case of the remote controller and touch the printed circuit boards inside. Doing so can result in fire and failure.

•Never wipe the remote controller with benzene, thinner, chemical rags, etc. Doing so can result in discoloration and failure. To remove heavy stains, soak a cloth in neutral detergent mixed with water, wring it out thoroughly, wipe the stains off, and wipe again with a dry cloth.

•Never block or cover the indoor or outdoor unit’s intakes or outlets. Tall items of furniture underneath the indoor unit, or bulky items such as large boxes placed close to the outdoor unit will reduce the unit’s effi- ciency.

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