Mitsubishi Electric City Multi PAC-LV11M-J Скачать руководство пользователя

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Contents

1. Safety precautions ........................................................................ 2

1.1. Before installation and electric work .............................. 2
1.2. Precautions for devices that use R410A refrigerant ...... 2
1.3. Before getting installed .................................................. 3
1.4. Before getting installed (moved) - electrical work .......... 3
1.5. Before starting the test run............................................. 3

2. Overview of units........................................................................... 4

2.1. System outline ............................................................... 4
2.2. Unit construction ............................................................ 4
2.3. Installation...................................................................... 5

2.4. Dip switch setting..........................................................18

3. Specifications...............................................................................18
4. Outlines and dimensions..............................................................19
5. Wiring diagram.............................................................................20
6. Refrigerant system diagram.........................................................21
7. Troubleshooting ...........................................................................22

7.1. Test run.........................................................................22
7.2. Check methods.............................................................23
7.3. Dip switch setting (Factory setting)...............................26

1. Safety precautions

1.1. Before installation and electric work

Symbols used in the text

Warning:

Describes precautions that should be observed to prevent danger 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

Warning:

• Ask the dealer or an authorized technician to install the connection kit.

- Improper installation by the user may result in water leakage, electric shock,

or fire.

• Install the unit at a place that can withstand its weight.

- Inadequate strength may cause the unit to fall down, resulting in injuries.

• Use the specified cables for wiring. Make the connections securely so

that the outside force of the cable is not applied to the terminals.

- Inadequate connection and fastening may generate heat and cause a fire.

• Prepare for typhoons and other strong winds and earthquakes and

install the unit at the specified place.

- Improper installation may cause the unit to topple and result in injury.

• Always use an air cleaner, humidifier, electric heater, and other acces-

sories specified by Mitsubishi Electric.

- Ask an authorized technician to install the accessories. Improper installation

by the user may result in water leakage, electric shock, or fire.

• Never repair the unit. If the unit must be repaired, consult the dealer.

- If the unit is repaired improperly, water leakage, electric shock, or fire may

result.

• When handling this product, always wear protective equipment.

EG: Gloves, full arm protection namely boiler suit, and safety glasses.

- Improper handling may result in injury.

• If refrigerant gas leaks during installation work, ventilate the room.

- If the refrigerant gas comes into contact with a flame, poisonous gases will

be released.

• Install the unit according to this Installation Manual.

- If the unit is installed improperly, water leakage, electric shock, or fire may

result.

• Have all electric work done by a licensed electrician according to “Elec-

tric Facility Engineering Standard” and “Interior Wire Regulations” and
the instructions given in this manual and always use a special circuit.

- If the power source capacity is inadequate or electric work is performed

improperly, electric shock and fire may result.

• Keep the electric parts away from water (washing water etc.).

- It might result in electric shock, catching fire or smoke.

• When installing and moving the unit to another site, do not charge the it

with a refrigerant different from the refrigerant specified on the unit.

- If a different refrigerant or air is mixed with the original refrigerant, the refrig-

erant cycle may malfunction and the unit may be damaged.

• If the unit is installed in a small room, measures must be taken to pre-

vent the refrigerant concentration from exceeding the safety limit even
if the refrigerant should leak.

- Consult the dealer regarding the appropriate measures to prevent the safety

limit from being exceeded. Should the refrigerant leak and cause the safety
limit to be exceeded, hazards due to lack of oxygen in the room could result.

• When moving and reinstalling the unit, consult the dealer or an autho-

rized technician.

- If the air conditioner is installed improperly, water leakage, electric shock, or

fire may result.

• After completing installation work, make sure that refrigerant gas is not

leaking.

- If the refrigerant gas leaks and is exposed to a fan heater, stove, oven, or

other heat source, it may generate noxious gases.

• Do not reconstruct or change the settings of the protection devices.

- If the pressure switch, thermal switch, or other protection device is shorted

and operated forcibly, or parts other than those specified by Mitsubishi Elec-
tric are used, fire or explosion may result.

• To dispose of this product, consult your dealer.
• Do not use a leak detection additive.

1.2. Precautions for devices that use

R410A refrigerant

Caution:

• Do not use the existing refrigerant piping.

- The old refrigerant and refrigerator oil in the existing piping contains a large amount

of chlorine which may cause the refrigerator oil of the new unit to deteriorate.

• Use refrigerant piping made of C1220 (Cu-DHP) phosphorus deoxidized

copper as specified in the JIS H3300 “Copper and copper alloy seam-
less pipes and tubes”. In addition, be sure that the inner and outer sur-
faces of the pipes are clean and free of hazardous sulphur, oxides, dust/
dirt, shaving particles, oils, moisture, or any other contaminant.

- Contaminants on the inside of the refrigerant piping may cause the refriger-

ant residual oil to deteriorate.

• Store the piping to be used during installation indoors and keep both

ends of the piping sealed until just before brazing. (Store elbows and
other joints in a plastic bag.)

- If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and

compressor trouble may result.

• Use liquid refrigerant to fill the system.

- If gas refrigerant is used to seal the system, the composition of the refriger-

ant in the cylinder will change and performance may drop.

• Do not use a refrigerant other than R410A.

- If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may

cause the refrigerator oil to deteriorate.

• Use a vacuum pump with a reverse flow check valve.

- The vacuum pump oil may flow back into the refrigerant cycle and cause the

refrigerator oil to deteriorate.

• Do not use the following tools that are used with conventional refriger-

ants.
(Gauge manifold, charge hose, gas leak detector, reverse flow check
valve, refrigerant charge base, vacuum gauge, refrigerant recovery
equipment)

- If the conventional refrigerant and refrigerator oil are mixed in the R410A, the

refrigerant may deteriorated.

- If water is mixed in the R410A, the refrigerator oil may deteriorate.
- Since R410A does not contain any chlorine, gas leak detectors for conven-

tional refrigerants will not react to it.

• Do not use a charging cylinder.

- Using a charging cylinder may cause the refrigerant to deteriorate.

• Be especially careful when managing the tools.



Before installing the unit, make sure you read all the “Safety precau-

tions”.



The “Safety precautions” provide very important points regarding