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Contents
1. Safety precautions .............................................................................................1
2. Installation location ............................................................................................1
3. Installing the indoor unit ....................................................................................2
4. Installing the refrigerant piping ..........................................................................5
Note:
The phrase "Wired remote controller" in this installation manual refers only to the PAR-40MAA.
If you need any information for the other remote controller, please refer to either the installation manual or initial setting manual which are included in these
boxes.
1. Safety precautions
► Before installing the unit, make sure you read all the "Safety
precautions".
► Please report to your supply authority or obtain their consent before
connecting this equipment to the power supply system.
Warning:
Describes precautions that must be observed to prevent danger of injury or
death to the user.
Caution:
Describes precautions that must be observed to prevent damage to the unit.
After installation work has been completed, explain the "Safety Precautions," use,
and maintenance of the unit to the customer according to the information in the
Operation Manual and perform the test run to ensure normal operation. Both the
Installation Manual and Operation Manual must be given to the user for keeping.
These manuals must be passed on to subsequent users.
Warning:
• Ask the dealer or an authorized technician to install the air conditioner.
• Install the unit at a place that can withstand its weight.
• Do not alter the unit. It may cause fire, electric shock, injury or water
leakage.
• Use only specified cables for wiring. The wiring connections must be
made securely with no tension applied on the terminal connections. Also,
never splice the cables for wiring (unless otherwise indicated in this
document).
Failure to observe these instructions may result in overheating or a fire.
• Use only accessories authorized by Mitsubishi Electric and ask the dealer
or an authorized technician to install them.
• Do not touch the heat exchanger fins.
• Install the air conditioner according to this Installation Manual.
• Have all electric work done by a licensed electrician according to local
regulations.
• Do not use intermediate connection of electric wires.
• If the air conditioner is installed in a small room, measures must be taken
to prevent the refrigerant concentration from exceeding the safety limit
even if the refrigerant should leak.
Caution:
• Do not use the existing refrigerant piping, when use R410A refrigerant.
• Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerator
oil to coat flares and flange connections, when use R410A refrigerant.
• Do not use the air conditioner where food, pets, plants, precision
instruments, or artwork are kept.
• Do not use the air conditioner in special environments.
• Ground the unit.
2. Installation location
en
B
L
M
F
G
1
W
A
C K
D
E
I
J
H
Fig. 2-1
5. Drainage piping work .........................................................................................7
6. Electrical work ...................................................................................................8
7. Test run ............................................................................................................12
: 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.
: Indicates that the main power switch must be turned off before servicing.
: Beware of electric shock.
: Beware of hot surface.
: At servicing, please shut down the power supply for both the Indoor and
ELV
Outdoor Unit.
Warning:
Carefully read the labels affixed to the main unit.
• The cut face punched parts may cause injury by cut, etc. The installers are
requested to wear protective equipment such as gloves, etc.
• When installing or relocating, or servicing the air conditioner, use only the
specified refrigerant (R410A) to charge the refrigerant lines. Do not mix it
with any other refrigerant and do not allow air to remain in the lines.
If air is mixed with the refrigerant, then it can be the cause of abnormal
high pressure in the refrigerant line, and may result in an explosion and
other hazards.
The use of any refrigerant other than that specified for the system will
cause mechanical failure or system malfunction or unit breakdown. In the
worst case, this could lead to a serious impediment to securing product
safety.
• The appliance shall be installed in accordance with national wiring
regulations.
• If the supply cord is damaged, it must be replaced by the manufacturer, its
service agent or similarly qualified persons in order to avoid a hazard.
• Install an leak molded case circuit breaker, as required.
• Use power line cables of sufficient current carrying capacity and rating.
• Use only a molded case circuit breaker and fuse of the specified capacity.
• Do not touch the switches with wet fingers.
• Do not touch the refrigerant pipes during and immediately after operation.
• Do not operate the air conditioner with the panels and guards removed.
• Do not turn off the power immediately after stopping operation.
2.1. Outline dimensions (Indoor unit) (Fig. 2-1)
Select a proper position allowing the following clearances for installation and
maintenance.
Models
D
W
237
773
PKFY-P04/06/08/12NLMU
9-11/32
30-7/16
237
898
PKFY-P15/18NLMU
9-11/32
35-3/8
F Air outlet: Do not place an obstacle within 1500 mm, 59-1/16 inch of the air outlet.
G Floor surface
H Furnishing
I When the projection dimension of a curtain rail or the like from the wall exceeds 60 mm,
2-23/64 inch, extra distance should be taken because the fan air current may create a
short cycle.
J 1800 mm, 70-55/64 inch or greater from the floor surface (for high location mounting)
K 75 mm, 2-61/64 inch, or greater with left, rear left, or lower left piping, and optional drain
pump installation. (Use the hook positioned on the lower part of the mount board when the
dimension is 55 mm, 2-11/64 inch or greater and less than 75 mm, 2-61/64 inch (Less than
55 mm, 2-11/64 inch: NG). Refer to 3.5. for details.)
L 350 mm, 13-25/32 inch or greater with optional drain pump installation
M Minimum 7 mm, 9/32 inch: 250 mm, 9-27/32 inch or greater with optional drain pump installation
(mm, inch)
H
A
B
C
D
299
Min. 150
Min. 50
Min. 50
Min. 250
Min. 260
11-25/32
Min.
Min.
Min.
Min.
299
5-29/32
1-31/32
1-31/32
9-27/32
11-25/32
E
Min.
10-1/4
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