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Contents
1. Safety precautions .............................................................................................2
2. Installation location ............................................................................................2
3. Installing the indoor unit ....................................................................................3
4. Refrigerant pipe and drain pipe .........................................................................4
1. Safety precautions
X Before installing the unit, make sure you read all the "Safety
precautions".
X 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.
• Use the specified cables for wiring.
• 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.
Caution:
• Do not use the existing refrigerant piping, when use R410A refrigerant.
• Use ester oil, either 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
W
Fig. 2-1
2
D
H
5. Electrical work ...................................................................................................6
6. External Heater .................................................................................................8
7. Test run (Fig. 7-1) ..............................................................................................9
: Indicates an action that must be avoided.
: Indicates an important instructions that must be followed.
: Indicates a part which must be grounded.
: Indicates that caution should be taken with rotating parts.
: Indicates that the main 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.
• Have all electric work done by a licensed electrician according to local
regulations.
• 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.
• The cut face punched parts may cause injury by cut, etc. The installers are
requested to wear protective equipement such as gloves, etc.
• Install an leak circuit breaker, as required.
• Use power line cables of sufficient current carrying capacity and rating.
• Use only a 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.
The indoor unit comes with the following parts and accessories:
PART NUMBER
ACCESSORY
1
Wall-fixing bracket
2
Tapping screw 4 × 35
3
Felt tape
4
MA remote controller cable
5
Wireless receiver cable
6
Band
7
Fastener
8
Cable
1
2
5
6
2.1. Outline dimensions (Indoor unit) (Fig. 2-1)
Select a proper position allowing the following clearances for installation and
maintenance.
Models
W
D
H
815
225
295
PKFY-P·NBMU-E
32-3/32
8-55/64
11-39/64
*1 : 60 mm, 2-23/64 inch or more for left and left back piping.
Warning:
Mount the indoor unit on a wall strong enough to withstand the weight of the
unit.
QUANTITY
LOCATION OF SETTING
1
Fix at the back of the unit
8
1
1
1
Set in packing material
1
1
1
3
4
7
8
(mm, inch)
A
B
C *1
D
Min. 20
Min. 22
Min. 50
Min. 100
Min. 90
Min. 25/32
Min. 55/64
Min. 1-31/32
Min. 3-15/16
Min. 3-35/64
E
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