Hisense AUD-18HX4SUNL User manual

ON/OFF UNITORY AIR CONDITIONER
SERVICE MANUAL V:3.0
UNIT:
AUD-18HX4SUNL AUD-48HX6SPHH
AUC-18HR4SUAA AUC-48HR6SPHA
AUV-18HR4SUA AUV-48HR6SPC
AUD-24HX4SZLH AUD-60HX6SPHH
AUC-24HR4SZGA AUC-60HR6SPHA
AUV-24HR4SZA AUV-60HR6SPC
AUD-36HX6SAHH
AUC-36HR6SAGA
AUV-36HR6SAB
Hisense Corporation

Table of contents
Page
1．GENERAL 1
2．SPECIFICATION 12
2-1 Duct type specifications 12
2-2 Cassette type specifications 15
2-3 Ceiling &Floor type specifications 18
3．OUTLINES AND DIMENSIONS 21
3-1 INDOOR 21
3-2 OUTDOOR 26
4．REFRIGERANT FLOW DIAGRAM 30
4-1 Refrigerant flow diagram 30
4-1 ELECTRIC Diagrams 33
5．ELECTRICAL DATA 36
5-1 Electric wiring diagrams 36
5-2 Sensor parameter 47
6．CONTROL MODE 56
6-1 Indoor control mode 58
6-2 Outdoor control mode 50
7．TROUBLESHOOTING 61
7-1 Error codes 61
8．CHECKING COMPONENTS 64
8-1 Check refrigerant system 64
8-2 Check parts unit 72
9．PARTS LIST 78
9-1 Indoor 78
9-2 Outdoor 110


F
¾
¾
¾
¾
¾
¾
1.1
Duc
eatures
¾
Save Ins
t
The
¾
Optional
18k:
Pre
s
One
¾
High Effi
c
R41
0
¾
24-hour
T
This
24-
h
¾
Mute Op
e
The
nois
e
¾
Meeting
V
The
Feature
s
t Type
Ai
t
allation Sp
a
indoor unit
c
Static Press
optional 10
P
s
sure.
unit, two in
s
c
iency and
E
0
A can prot
e
T
imer ON a
n
Timer can
b
h
our period.
e
ration
excellent fa
n
e
.
V
arious Inst
a
back-air-inl
e
s
i
r Conditi
a
ce
c
an be instal
l
ure
P
a /30Pa, 2
4
s
tallation me
t
E
nvironment
e
ct the envir
o
n
d OFF
b
e set to aut
o
n
design en
a
a
llation Req
u
e
t type is us
u
oner
l
ed inside th
e
4
K 36K 50P
a
t
hod.
Friendly Ne
w
o
nment and
d
o
matically tu
a
ble the airfl
o
u
irements
u
ally to be a
d
e
ceiling co
n
a
/80Pa, 48K
/
w
Refrigeran
d
o not harm
r
n the unit o
n
o
w to be qui
e
d
opted acco
r
n
veniently.
/
60K: 80Pa/1
t-R410A
to the ozon
e
n
or off at h
a
e
t and smoo
t
r
ding to the
a
1.G
E
20Pa static
e
layer.
a
lf-hour withi
n
t
h with mini
m
a
ctual install
a
E
NERAL
1
n
a
m
um
a
tion

1.GENERAL
2

space.
The unit is also installed with down-air-inlet type.
¾Self Recovery of Power Break
When the power supply is recovered after break, all preset are still effective and the
air-conditioner can run according to the original setting.
¾Fault Self-diagnose Function
When there is something wrong with the air-conditioner，the micro computer could
diagnose the faults, which can be read from the display and is convenient for
maintenance.


C
F
e
¾
¾
¾
¾
¾
¾
C
assette
T
e
atures
¾
Save Ins
t
The indo
o
¾
High Effi
c
R410A c
a
¾
24-hour
T
This Tim
e
period.
¾
Mute Op
e
The exc
e
¾
Self Rec
o
When th
e
air-condi
t
¾
Fault Sel
f
When th
e
the fault
T
ype Air
t
allation Sp
a
o
r unit can
b
c
iency and
E
a
n protect th
T
imer ON a
n
e
r can be se
t
e
ration
e
llent fan de
s
o
very of Po
w
e
power sup
p
t
ioner can ru
f
-diagnose
F
e
re is somet
h
s, which ca
n
Conditio
n
a
ce
b
e installed i
n
E
nvironment
e environm
e
n
d OFF
t
to automat
i
s
ign enable t
w
er Break
p
ly is recove
n according
F
unction
h
ing wrong
w
n
be read fro
m
n
er
n
side the cei
l
Friendly Ne
w
e
nt and do n
o
i
cally turn th
e
he airflow to
red after br
e
to the origin
a
w
ith the air-c
o
m
the displa
y
l
ing conveni
e
w
Refrigeran
o
t harm to th
e
unit on or
o
be quiet an
d
e
ak, all pres
e
a
l setting.
o
nditioner, th
y
and is con
v
e
ntly.
t-R410A
e ozone lay
e
o
ff at half-ho
u
d
smooth wi
t
e
t are still eff
e
e micro co
m
v
enient for
m
1.G
E
e
r.
ur within a 2
4
t
h minimum
n
e
ctive and t
h
m
puter could
d
m
aintenance.
E
NERAL
3
4
-hour
n
oise.
h
e
d
iagnose

1.GENERAL
4

Ceiling&Floor Air Conditioner
Features
¾Save Installation Space
The indoor unit’s thickness is only 230mm,can be installed inside the ceiling conveniently.
¾Flexible Installation Options
According to the actual installation space,The indoor unit can be installed in the ceiling
or on the floor. One unit, Two installation method.
¾High Efficiency and Environment Friendly
New Refrigerant-R410A
R410A can protect the environment and do not harm to the ozone layer.
¾24-hour Timer ON and OFF
This Timer can be set to automatically turn the unit on or off at half-hour within a 24-hour period.
¾Mute Operation
The excellent fan design enable the airflow to be quiet and smooth with minimum noise.
¾Various Refrigerant Pipe Connect Methods
The refrigerant pipe can be connect from 3 different directions(rear,right or top) .More methods,
more conveniently.
¾Self Recovery of Power Break
When the power supply is recovered after break, all preset are still effective and the

1.GENERAL
5

air-conditioner can run according to the original setting.
¾Fault Self-diagnose Function
When there is something wrong with the air-conditioner, the micro computer could diagnose the
faults, which can be read from the display and is convenient for maintenance.

1.GENERAL
6

1.2 Product Lineup
Type Model 18 24 36 48 60
Duct Type AUD ● ● ● ● ●
Cassette Type AUC ● ● ● ● ●
Ceiling&Floor
Type AUV ● ● ● ● ●
Note：18=18K btu type

1.GENERAL
7

1.3 MODEL IDENTIFICATION





1.GENERAL
8
