8
Contents
1.
Safety precautions
...................................................................................8
2.
Selecting the installation location.............................................................
8
3.
Selecting an installation site & Accessories.............................................
9
4.
Fixing hanging bolts.................................................................................
9
5.
Installing the unit......................................................................................
9
6.
Refriger
ant piping work
..........................................................................10
7.
Duct work
...............................................................................................12
8.
Electrical w
ork
........................................................................................13
9.
T est r
un..................................................................................................
15
10.Easy maintenance function
....................................................................17
11.Maintenance
..........................................................................................17
This Installation Manual descr
ibes only for the indoor unit and the connected
outdoor unit of PUHZ series.
If the connected outdoor unit is MXZ series
, refer to the Installation Man
ual for
MXZ series
.
1.
Safety precautions
•
Please report to or take consent b
y the supply authority bef
ore connection
to the system.
•
Be sure to read “The f
ollowing should al
ways be obser
ved for safety”
before
installing the air conditioner.
•
Be sure to observe the cautions specified here as the
y include impor
tant
items related to safety
.
•
The indications and meanings are as follo
ws.
W
arning:
Could lead to death, serious injur
y, etc.
Caution:
Could lead to serious injury in par
ticular envir
onments when operated incor-
rectly.
•
After reading this manual,
be sure to keep it together with the instruction
manual in a hand
y place on the customer’s site
.
Symbols put on the unit
:Indicates an action that m
ust be avoided.
:Indicates that impor
tant instructions m
ust be follo
wed.
:Indicates a par
t which must be grounded.
:Indicates that caution should be tak
en with rotating parts
.
:Indicates that the main s
witch must be tur
ned off before ser
vicing.
:B
eware of electr
ic shock.
:B
eware of hot surf
ace.
W
arning:
Carefully read the labels affixed to the main unit.
W
arning:
•Do not install it b
y your
self (customer).
Incomplete installation could cause injury due to fire, electric shoc
k, the unit
falling or leakag
e of water. Consult the dealer fr
om whom you pur
chased the
unit or special installer.
•Install the unit securel
y in a place which can bear the weight of the unit.
When installed in an insufficient strong place
, the unit could fall causing in-
jured.
•Use the specified wires to connect the indoor and outdoor units securel
y and
attach the wires firml
y to the terminal board connecting sections so the stress
of the wires is not applied to the sections.
Incomplete connecting and fixing could cause fire.
•Do not use intermediate connection of the po
wer cord or the e
xtension cord
and do not connect many de
vices to one AC outlet.
It could cause a fire or an electric shock due to def
ective contact, def
ective
insulation, e
xceeding the permissible current,
etc.
•Chec
k that the refrigerant gas does not leak after installation has completed.
•P
erform the installation securel
y referring to the installation man
ual.
Incomplete installation could cause a personal injury due to fire
, electric shoc
k,
the unit falling or leakag
e of water.
•P
erform electrical w
ork according to the installation man
ual and be sure to
use an exc
lusive circuit.
If the capacity of the power cir
cuit is insufficient or there is incomplete elec-
trical work,
it could result in a fire or an electric shock.
•Attac
h the electrical part co
ver to the indoor unit and the service panel to the
outdoor unit securely.
If the electrical part co
ver in the indoor unit and/or the service panel in the
outdoor unit are not attached securely
, it could result in a fire or an electric
shock due to dust,
water, etc.
•Be sure to use the par
t pro
vided or specified parts f
or the installation work.
The use of defective par
ts could cause an injury or leaka
ge of water due to a
fire, an electric shoc
k, the unit falling,
etc.
•V
entilate the room if refrig
erant leaks during operation.
If the refrigerant comes in contact with a flame, poisonous gases will be re-
leased.
Caution:
•P
erform gr
ounding.
Do not connect the ground wire to a gas pipe
, water pipe arrester or telephone
ground wire
. Defective gr
ounding could cause an electric shock.
•Do not install the unit in a place where an inflammab
le gas leaks.
If gas leaks and accumulates in the area surr
ounding the unit, it could cause
an explosion.
•Install a gr
ound leakage breaker depending on the installation place (where it
is humid).
If a ground leakag
e breaker is not installed, it could cause an electric shoc
k.
•P
erform the draina
ge/piping w
ork securely accor
ding to the installation
manual.
If there is a defect in the drainag
e/piping work,
water could drop fr
om the unit
and household goods could be wet and damag
ed.
•F
asten a flare nut with a tor
que wrench as specified in this man
ual.
When fastened too tight, a flare nut ma
y broken after a long period and cause
a leakag
e of refrigerant.
2.
Selecting the installation location
2.1.Indoor unit
•
Where airflow is not b
lock
ed.
•
Where cool air spreads over the entire room.
•
Where it is not exposed to direct sunshine
.
•
At a distance 1 m [3-1/4 ft] or more aw
ay from y
our TV and r
adio (to prevent picture
from being distorted or noise from being generated).
•
In a place as far a
wa
y as possible from fluorescent and incandescent lights (so the
infrared remote control can oper
ate the air conditioner normally).
•
Where the air filter can be remov
ed and replaced easily .
W
arning:
Mount the indoor unit into a ceiling strong enough to withstand the weight of
the unit.
2.2.Outdoor unit
•
Where it is not exposed to strong wind.
•
Where airflow is good and dustless
.
•
Where it is not exposed to r
ain and direct sunshine.
•
Where neighbours are not annoyed b
y operation sound or hot air.
•
Where rigid w
all or support is a
vailab
le to prevent the increase of operation sound
or vibration.
•
Where there is no risk of combustib
le gas leakage.
•
When installing the unit at a high level, be sure to fix the unit legs
.
•
Where it is at least 3 m [9-13/16 ft] a
wa
y from the antenna of TV set or r
adio.
(Otherwise, images w
ould be disturbed or noise would be gener
ated.)
•
Install the unit horiz
ontally .
Caution:
Avoid the f
ollowing places f
or installation where air conditioner trouble is li-
able to occur
.
•
Where there is too muc
h machine oil.
•
Salty envir
onment as seaside areas.
•
Hot-spring areas.
•
Where sulfide gas exists.
•
Other special atmospheric areas.
WT06034X01_GB.p65
10.8.30, 17:05
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