Mitsubishi Electric MXZ-2F53VFHZ User manual

Split-type Air-Conditioner
MXZ-2F53VFHZ
English
INSTALLATION MANUAL

FOR INSTALLER
1
en
1. BEFORE INSTALLATION
Required Tools for Installation
ENGLISH
CONTENTS
1. BEFORE INSTALLATION ............................................................ 1
2. OUTDOOR UNIT INSTALLATION ............................................... 7
3. FLARING WORK AND PIPE CONNECTION............................... 8
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN......... 9
5. PUMPING DOWN ...................................................................... 12
1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
• Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before installing the air conditioner.
Do not install the unit by yourself (user).
Perform the installation securely referring to the installation manual.
When installing the unit, use appropriate protective equipment and tools
for safety.
Install the unit securely in a place which can bear the weight of the unit.
If the installation location cannot bear the weight of the unit, the unit could fall
not connect other electrical appliances to the circuit.
screws.
Be sure to cut off the main power in case of setting up the indoor P.C. board
or wiring works.
or use intermediate connection.
sion.
and do not connect many devices to one AC outlet.
When plugging the power supply plug into the outlet, make sure that there
is no dust, clogging, or loose parts in both the outlet and the plug. Make
sure that the power supply plug is pushed completely into the outlet.
plug, replace it.
Attach the electrical cover to the indoor unit and the service panel to the
outdoor unit securely.
dust, water, etc.
When installing, relocating, or servicing the unit, make sure that no sub-
Do not discharge the refrigerant into the atmosphere. If refrigerant leaks
during installation, ventilate the room. Check that the refrigerant does not
leak after installation has been completed.
Check that the refrigerant gas does not leak after installation has been
completed.
Use appropriate tools and piping materials for installation.
When pumping down the refrigerant, stop the compressor before discon-
necting the refrigerant pipes.
When installing the unit, securely connect the refrigerant pipes before start-
ing the compressor.
the stop valve is open, air could be drawn in and the pressure in the refrigeration
The unit shall be installed in accordance with national wiring regulations.
Earth the unit correctly.
Do not connect the earth to a gas pipe, water pipe, lightning rod or telephone
Be sure to install an earth leakage breaker.
remove all of the refrigerant from the air conditioner and ensure that the
area is well-ventilated.
Do not use means to accelerate the defrosting process or to clean, other
than those recommended by the manufacturer.
The appliance shall be stored in a room without continuously operating
an operating electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
Pipe-work shall be protected from physical damage.
The installation of pipe-work shall be kept to a minimum.
Compliance with national gas regulations shall be observed.
Keep any required ventilation openings clear of obstruction.
Do not use low temperature solder alloy in case of brazing the refrigerant
pipes.
Servicing shall be performed only as recommended by the manufacturer.
When opening or closing the valve below freezing temperatures, refrigerant
may spurt out from the gap between the valve stem and the valve body,
WARNING
MEANINGS OF SYMBOLS DISPLAYED ON INDOOR UNIT AND/OR OUTDOOR UNIT
WARNING
Phillips screwdriver
Level
Scale
Torque wrench

This manual only describes the installation of outdoor unit.
When installing the indoor unit, refer to the installation manual of indoor unit.
2
en
1-4. SELECTING THE INSTALLATION LOCATION
• Where rigid wall or support is available to prevent the increase of operation
sound or vibration.
• When installing the unit, be sure to secure the unit legs.
Port size of outdoor unit
A, B UNIT
Model
Outdoor Noise level
Rated
Voltage
Fre Power door connect
ing wire difference Cooling Heating
2 2
cause dew drippage.
follow the instructions described below.
facing the wall.
on the air outlet side of the outdoor unit.
Avoid the following places for installation where air conditioner trouble is
liable to occur.
occurring.
CAUTION
Install an earth leakage breaker depending on the installation place.
Perform the drainage/piping work securely according to the installation
manual.
Do not install the outdoor unit where small animals may live.
the unit clean.
-

en
3
Obstacles in front (blowing) only
When there is an obstacle in front of the
above, behind, and on the sides of the unit
is required.
Front (blowing) side open
As long as space indicated in the
install the unit where obstacles
are behind and on the sides of
the unit. (No obstacle above
FREE SPACE REQUIRED AROUND OUTDOOR UNIT
1. Obstacles above
When there is no obstacle in front and on
the sides of the unit, it is allowed to install
the unit where an obstacle is above the
is provided.
Service space
6. Service space
• When installing the unit in an area that is enclosed with walls such as a
verandah, be sure to have enough space as shown below.
deteriorate.
of the unit.
each other.
5. Obstacles in front, behind and on side(s)
4. Obstacles in front and behind
ing an optional outdoor blowing
•
appropriate ventilation.
OK OK OK NG

en
4
1-4-1. Minimum installation area for Outdoor units
12
1.5 17
23
2.5 28
34
3.5 39
45
4.5
5.5
73
78
7.5 84

en
5
3
1.5 4.5
2.5 7.5
9
3.5 12
15.5
4.5
24
5.5 29
35
41
47
7.5 54
Ceiling concealedCassetteCeiling suspended

en
*2
*2
1-5. INSTALLATION DIAGRAM
PARTS TO BE PROVIDED AT YOUR SITE
1
1
1
Wall hole cover 1
Piping tape 1
1
Refrigeration oil Little
1
2 to 7
2 to 7
Wall hole sleeve 1
wire.
used per indoor unit.
More than
Open as a rule
the front and both sides
are open
obstacles to both sides
Open as a rule
both sides and top are open
Outdoor unit installation
Air inlet
Air outlet
Air inlet
175
WARNING
When the piping is to be attached to
ing or wrap 7 to 8 turns of insulation
refrigerant.
is no gap.

en
7