En-2
*2
*2
*2
1-3. SELECTING OPTIONAL DIFFERENT-DIAMETER JOINTS
If the diameter of connection pipe does not match the port size of outdoor unit, use optional different-diameter joints according to the following table.
Port size of outdoor unit
Optional different-diameter joints (port size of outdoor unit → diameter of connection pipe)
MXZ-2HJ40VA
Liquid / Gas
6,35 (1/4) → 9,52 (3/8) : PAC-493PI
9,52 (3/8) → 12,7 (1/2) : MAC-A454JP
9,52 (3/8) → 15,88 (5/8) : PAC-SG76RJ
12,7 (1/2) → 9,52 (3/8) : MAC-A455JP
12,7 (1/2) → 15,88 (5/8) : MAC-A456JP
Refer to the installation manual of indoor unit for the diameter of connection pipe of indoor unit.
A , B UNIT
6,35 (1/4) / 9,52 (3/8)
1-4. SELECTING THE INSTALLATION LOCATION
• Where it is not exposed to strong wind.
• Where airflow is good and dustless.
• Where rain or direct sunshine can be avoided as much as possible.
• Where neighbours are not annoyed by operation sound or hot air.
• Where rigid wall or support is available to prevent the increase of opera
-
tion sound or vibration.
• Where there is no risk of combustible gas leakage.
• When installing the unit, be sure to secure the unit legs.
• Where it is at least 3 m away from the antenna of TV set or radio. Opera
-
tion of the air conditioner may interfere with radio or TV reception in areas
where reception is weak. An amplifier may be required for the affected
device.
• Install the unit horizontally.
• Please install it in an area not affected by snowfall or blowing snow. In
areas with heavy snow, please install a canopy, a pedestal and/or some
baffle boards.
Note:
It is advisable to make a piping loop near outdoor unit so as to reduce
vibration transmitted from there.
(Unit: mm (inch))
1-5. INSTALLATION DIAGRAM
ACCESSORIES
Check the following parts before installation.
(1) Drain socket
1
PARTS TO BE PROVIDED AT YOUR SITE
(A) Power supply cord*1
1
(B) Indoor/outdoor unit connecting wire*1
1
(C) Extension pipe
1
(D) Wall hole cover
1
(E)
Piping tape
1
(F)
Extension drain hose
(or soft PVC hose, 15 mm inner
diameter or hard PVC pipe VP16)
1
(G) Refrigeration oil
Little
amount
(H) Putty
1
(I) Pipe fixing band
2 to 7
(J) Fixing screw for (I)
2 to 7
(K) Wall hole sleeve
1
(L)
Soft PVC hose, 15 mm inner
diameter or hard PVC pipe VP16
for drain socket (1)
1
Note:
*1 Place indoor/outdoor unit connecting wire (B) and
power supply cord (A) at least 1 m away from the
TV antenna wire.
The “Q’ty” for (B) to (K) in the above table is quan
-
tity to be used per indoor unit.
Units should be installed by licensed contractor according to local code requirements.
More than
100 mm
More than 100 mm
More than 200 mm if there are
obstacles to both sides
Open as a rule
More than 500 mm if the back,
both sides and top are open
More than 350 mm
Outdoor unit installation
(Unit: mm)
285
Air inlet
150
500
Air inlet
4-10 × 21 Oval holes
304~325
344.5
Air outlet
800
Open as a rule
More than 500 mm if the front
and both sides are open
Note:
When operating the air conditioner in low outside temperature, be sure
to follow the instructions described below.
• Never install the outdoor unit in a place where its air inlet/outlet side
may be exposed directly to wind.
• To prevent exposure to wind, install the outdoor unit with its air inlet
side facing the wall.
• To prevent exposure to wind, it is recommended to install a baffle board
on the air outlet side of the outdoor unit.
Avoid the following places for installation where air conditioner trouble
is liable to occur.
• Where flammable gas could leak.
• Where there is much machine oil.
• Where oil is splashed or where the area is filled with oily smoke (such
as cooking areas and factories, in which the properties of plastic could
be changed and damaged).
• Salty places such as the seaside.
• Where sulfide gas is generated such as a hot spring.
• Where there is high-frequency or wireless equipment.
• Where there is emission of high levels of VOCs, including phthalate
compounds, formaldehyde, etc., which may cause chemical cracking.
*2 The manufacturing year and month is indicated on the spec
name plate.
When the piping is to be attached
to a wall containing metals (tin
plated) or metal netting, use a
chemically treated wooden piece
20 mm or thicker between the wall
and the piping or wrap 7 to 8 turns
of insulation vinyl tape around
the piping.
To use existing piping, perform
COOL operation for 30 minutes
and pump down before removing
the old air conditioner. Remake
flare according to the dimension
for new refrigerant.
After the leak test, apply insulat
-
ing material tightly so that there
is no gap.
BH79A129H01_en.indd 2
10/31/2014 11:29:48 AM
