AU242AHBEA
Service Manual
Commercial Air Conditioning
24 28 Universal Outdoor Unit air conditioning
AB242ACBEA+AU242AHBEA
AC242ACBEA+AU242AHBEA
AD242AMBEA+AU242AHBEA
AD242AHBE A+ AU242AHBEA
AB28NACBEA+AU28NAHBEA
AC28NACBEA+AU28NAHBEA
AD28NAMBEA+AU28NAHBEA
Features
Auto-Restart function
Group control(with a group controller)
Auto-changeover
The same outdoor unit can match with cassette \convertible\
duct type indoor unit
With new environment friendly refrigerant R407C
Remotoe control and Wired remote control(Optional)
Weekly timing(with a weekly timer)
Haier Group
MANUAL CODE: SYJS-005 -03 Rev.0 .
CONTENTS
CONTENTS
Contents……..............................................…...………...…….1
1. Description of Products & Features…………………...…….2
2. Specifications…………………………. ………………...……8
3. Safety precaution…………………………..………………….12
4. Net dimensions of indoor and outdoor unit………………...14
5. Installation instructions ……………………. ………………. 16
6. Parts and functions …………………………..…… ..……….19
7. Remote controller functions………………………….………22
8. Refrigerant diagram…………………………..……………....24
9. Electrical control functions……………………………………25
10. Diagnostic information(trouble shooting)…………….……29
11. Electrical data.........................................…………….……35
12. Exploded views and parts lists...............……………. …...41
13. Performance curves……………............................... ……57
14. Noise level charts....... …………............................... ……48
15. Air velocity distribution …………............................... ……48
- 1 -
1 .Description of Products & Features
Products coding direction
United Outdoor unit:
A U 24 2 A H B E A
Climate type: T1 (see table 1)
Design number E
Product type: A stands for heat pump type, refrigerant is R22
B stands for heat pump type, refrigerant is R407
M stands for cool only type, refrigerant is R22
N stands for cool only type, refrigerant is R407
Appearance character
Product series: common icon-shelled outdoor unit type
Applicable voltage: 2 stands for 220-240V/50Hz
4 stands for 220v/60Hz
N stand for 380V/50Hz
Cooling / Heating capacity,24=24000BTU/h
Product type : “B” stands for cassette type
“C” stands for convertible type
“D” stands for duct
“S” stands for split type
“Q” stands for chiller system
“U” stands for outdoor unit
Abbreviation of Air conditioner
Indoor units of Cassette type:
A C 24 2 A C B E A
Climate type: T1 (see table 1)
Design number E
Product type: A stands for heat pump type, refrigerant is R22
B stands for heat pump type, refrigerant is R407
M stands for cool only type, refrigerant is R22
N stands for cool only type, refrigerant is R407
Appearance character
Product series: common icon-shelled outdoor unit type
Applicable voltage: 2 stands for 220-240V/50Hz
4 stands for 220v/60Hz
N stand for 380V/50Hz
Cooling / Heating capacity,24=24000BTU/h
Product type : “B” stands for cassette type
“C” stands for convertible type
“D” stands for duct
“S” stands for split type
“Q” stands for chiller system
“U” stands for outdoor unit
Abbreviation of Air conditioner
-2-
a) Description of the coding rule of the models
A U 28 N A H B E A
A B 28 N A C B E A
Climate type:T1
Design serial number
Product type: heat pump R407C
Appearance features
Product series:one-to-one
Adaptive voltage:380-400V/50Hz
Cooling capacity:28=28000BTU/h
Outdoor unit
Air conditioner
Climate type:T1
Design serial number
Product type: heat pump R407C
Appearance features
Product series:one-tag-one
Adaptive voltage:380-400V/50Hz
Product specification:valid digit above kilobi
Product type:indoor unit
P:Cabinet typeC:Convertible type
B:Cassette type D:Duct type
Air conditioner
b). Standard working condition
No.
No.
1
1
2
2
Operating Mode
Nominal Cooling
Nominal Heating
Nominal Heating
Indoor Operating Mode
Temp.
DB:27
DB:27
DB:20
DB:20
Humidity
Humidity
WB:19
WB:19
WB:15
WB:15
-3-
Outdoor Operating Mode
Temp.
Temp.
DB:35
DB:35
DB:7 WB:6
DB:7 WB:6
Humidity
Humidity
WB:24
WB:24
c)Brief introduction of the series:
Convertible type:
AC242ACBEA AC28NACBEA
(1).Ceiling convertible,flexible installation,convenient
maintenance,saving the users' expenditures
(2)Adopting single-phase & three-phase power supply,applicable for
household and commercial usage
(3).Dual air outlet design,floor air blowing,accelerating the indoor air
circulation, quick temperature adjustment
(4).Long-distance air blowing,large power,large cooling/heating
ratio
(5).Intelligent remote control,convenient and flexible control
(6).Super-slim indoor unit design,luxury and nice-looking,saving
space,harmonious and unitive with the indoor environment
(7).Adopting screw-fastening for the air inlet grill,firmly
fixed;adopting slipway insert-lock fastening method for the
filter screen,convenient cleaning or replacing the filter screen
without opening the air inlet grill.
(8).Group control,units up to 128 sets can be controlled .
Duct type :
AD242AMBHA AD242AHBEA AD28NAMBEA
Totally concealed machine body
All the machine body is to be installed inside the ceiling, having no effect on the
beauty of the room and without taking any room space.
Air intake via the rear air intake duct
This new design has changed the former unique pattern of air intake, and a larger
distance between air intake and air return cycles as well as better air quality can be
achieved.
Flexible and easier installation
The machine body is to be installed in a totally concealed way,its fan system has
a longer distance coverage so as to supply its airflow to several rooms, and the
indoor unit may be installed inside the ceiling of a room or corridor. The
installation is simple and flexible, and there is no need to have specified personnel
for management, thus cutting down the expenses; the machine is lighter and
smaller, and convenient for installation, it takes an extremely small building space,
thus lower the construction cost; the indoor unit is to be concealed inside the
ceiling, and hence the usable space can be saved and the room decoration will
not be affected.
-4-
NEW
NEW
Cassette type:
AB242ACBEA AB28NACBEA
Products characteristic:
Completely invisible machine body:
The whole machine body is completely concealed inside the ceiling. Due to its compact size it neither
breaks the harmonization of indoor decoration nor occupies the indoor spaces. The stylish look of air
conditioner allows it to blend right into ceiling.
Superbly efficient healthy filter:
Superbly efficient antibiotic materials are utilized and can prevent germs from
breeding efficiently .
Flexible and easy installation
Slim design with machine body, completely ceiling concealing and portable shape, all make it greatly
easier to install. Moreover, it occupies least constructional spaces, which help to reduce constructional
cost prices. It also features a specific drainage system with up to 600mm lift , which allows reducing
installation spaces and ensures to drain smoothly. Thanks to its "smudge-free"
mobile outlet grill,
the ceiling can be protected from pollution effectively and allow the airflow to fit people's
comfortable need much more
.
Compensation function of power failure:
When meeting a power failure during running, no matter how long it will be, once the power is
restored, air conditioner will automatic restart with the previous status.
Safety and reliable control due to various signal controls
1 Inputting with press buttons on the panel
2 Inputting with temperature sensors (indoor ambient temperature sensors, indoor coil pipe
temperature sensors,
3 Piping pressure signals
4 Compressor current signals
5 Testing signals
6 System time-shorten signal
7 Water overflowing signal
8 Communication signals between indoor unit and front plate or between indoor unit and outdoor
unit .
Silent design
The use of radial outward flow turbine fan produces larger cyde airflow volume and acts to
significantly decrease operating noise.
When using remote-controlling mode, it is comfortable and convenient to operate.
Advanced wire-controller and convenient remote-controller
The new wired controller can connect with 16 indoor units without any device such as detectors.
The new remote controller can be used for single unit or muti-free unit, or H-MRV,very convenient.
In addition, it can be compatible with the old remote controllers.
Low ambient temperature cooling function (optional)
Equipped with high/low pressure protection switch
d). Brief Introduction for T1\
Type of Air Conditioner
Type of Air Conditioner
Cool only 18 43 0 35 21 52
Cool only 18 43
Heat pump -7 43 -7 35 -7 52
Heat pump -7 43 -7 35 -7 52
Electricity heating 43 35 52
Electricity heating 43 35 52
T3 working condition
T2\
Climate type
Climate type
T1 T2 T3
T1 T2 T3
10
35 21 52
-6-
2 Specifications
Model
Item
Cooling capacity①
Heating capacity①
Btu/h
Btu/h
AU242AHBEA AC242ACBEA AB242ACBEA AD242AMBEAE AD242AHBEA
24000 24000 24000 24000 24000
27000 27000 27000 27000 27000
Power
Cooling power(W)
Cooling EER(Btu/W)
Cooling operation current
(A)
Power factor(%)
Heating power (W)
Heating COP(Btu/W)
Cooling operation current
Operation data
(A)
Power factor(%)
Noise level（high-mid-low）
dB(A)
Dimension
mm×mm×mm
External
(L×W×H)
Package
(L×W×H)
Weight
Kg/Kg
(net/gross)
Compressor Model
Manufacture
Starting method
Starting
current(A)
Protection
devices
Crankcase heater power (W)
Heat exchanger
Refrigerant control
Refrigerant Type
Charge(g)
Defrost method
Fan Type×Number
Fan motor Motor output (W)
Air-flow
（high-mid-low）m
3
/h
Anti-vibration and sound
insulation devices
Control method
（ remote/wire-controlled ）
Safety devices
Dimension
of
Liquid pipe:(mm)
Gas pipe:(mm)
refrigerant
2700 2700 2700 2700 2700
8.89 8.89 8.89 8.89 8.89
12.5 12.5 12.5 12.5 12.5
0.95 0.95 0.95 0.95 0.95
2700 2700 2700 2700 2700
10 10 10 10 10
12.5 12.5 12.5 9.5 9.5
0.95 0.95 0.95 0.95 0.95
58 42-40-38 39-37-35 35-32-29 42-41-40
948x340x830 1320×715×235 840×840×240 990×650×300 820×830×360
1050x440x979
74/89 40/57 28/30 40/57 48/58
ZR34K3E-PFJ-522
Copeland \ \ \ \
PSC \ \ \ \
75 \ \ \ \
IOL \ \ \ \
\ \ \ \
0.92m2 0.199 m2 0.199m2 0.199m2 0.199m2
capillary capillary capillary capillary capillary
R407C \ \
2400 \ \ \
Auto Auto Auto Auto Auto
Axial fan×1 Axial fan×2 Cross flow fan×2 Cross flow fan×2 Cross flow fan×2
130 45 40 100 130
4000 1300/1250/1150 1300/1100/870 1470/1300/1100 900/1250/1500
XPE XPE XPE XPE XPE
\
Fuse Fuse Fuse Fuse Fuse
Φ9.52 Φ9.52 Φ9.52 Φ9.52 Φ9.52
Φ15.88 Φ15.88 Φ15.88 Φ15.88 Φ15.88
pipe
Connection method
Drainage pipe(material ,
I.D./O.D.)Mm
Appearance colour
Accessories
Bugle joint Bugle joint Bugle joint Bugle joint Bugle joint
\ PVC 18/20 PVC 25/32 PVC 25/32 PVC 26/32
white white white white white
To see manual To see manual To see manual To see manual To see manual
1PH 220-230V 50Hz
1380×770×300 910×910×300 1137×800×320 940×1051×510
\ \ \ \
\
Remote
controlled
Remote
controlled
Wired
controlled
Wired
controlled
-7-
Coo
g
eating
z
item Model
A
Z
/
/
/
A
E£©
n
A
0
/
y
A
/
/
E
/
30
Function
Capacity
Total power input
Max. power input
EER or COP
Dehumidifying capacity 10‐³×m³/h
Power cable
Power source N，V，H
Running /Max.Running
current
Start Current
Unit model (color)
Fan Type × Number
Speed(H-M-L)
Fan motor output power
Air-flow(H-M-L)
Heat exchanger Type / Diameter
Total Area m²
Temp. scope ℃
Dimension
Indoor unitOutdoor unit
Drainage pipe (material , I.D./O.D.)
Control type (Remote /wired)
Fresh air hole dimension
Electricity Heater
Noise level (H-M-L)
Weight (Net / Shipping)
Dimension
Panel
Weight (Net / Shipping)
Unit model (color)
Compressor Model / Manufacture
Fan Type × Number
Heat exchanger Type / Diameter
Dimension
Drainage pipe (material , I.D./O.D.)
Refrigerant control method
Defrosting
Volume of Accumulator L
Noise level
Type of Four way valve
material of reduce noise
crankcase heater power W
Weight (Net / Shipping)
Refrigerant Type / Charge
Pipe
PIPING
Connecting Method
Between I.D &O.D
External （L×W×H）
Package （L×W×H）
External （L×W×H）
Package （L×W×H）
Type
Speed
Fan motor output power kW
Air-flow(H-M-L)
Total area
Temp. scope ℃
External （L×W×H）
Package （L×W×H）
Recharge quantity
Liquid
Gas
MAX.Drop 20
MAX.Piping length
BTU/h
W
W
BTU/W
A / A
A
r/min
kW
m³/h
mm
mm×mm×mm
mm×mm×mm
mm
mm
kW
dB(A)
kg / kg
mm×mm×mm
mm×mm×mm
kg / kg
r/min
m³/h
mm
m²
mm×mm×mm
mm×mm×mm
mm
mm/mm
dB(A)
kg / kg
g
g/m
mm
mm
m
m
U28NAHBEA
lin
28000 32000
3200 3300
4500 5500
8.75 9.7
3
/
H
3N 380V-400V 50H
Cooling 5.5/8.0 Heating 5.8/9.5
30
U28NAHBEA(WHIT
ZR40K3E-TFD-522 Copela
Scroll
xial-flow×1
1180+3
130
4000
TP2M/9.52
0.92
43-60
948x340x830
1050x440x979
main capillary 2.4x220；auxiliary capillar
uto
58/--/50
XP
74/89
R407C 2400
60
9.52
15.88
flared
-8-
Coo
g
eating
z
item Model
A
Z
2
9
0
0
2
9
7
/
/
/
/
/////////
///
/
///
/
/
/
-9-
D
Function
Capacity
Total power input
Max. power input
EER or COP
Dehumidifying capacity 10‐³×m³/h
Power cable
Power source N，V，H
Running /Max.Running
Start Current
Unit model (color)
Fan Type × Number
Speed(H-M-L)
Fan motor output power
Air-flow(H-M-L)
Heat exchanger Type / Diameter
Total Area m²
Temp. scope ℃
Dimension
Indoor unit
Drainage pipe (material , I.D./O.D.)
Control type (Remote /wired)
Fresh air hole dimension
Electricity Heater /
Noise level (H-M-L)
Weight (Net / Shipping)
Dimension
Panel
Weight (Net / Shipping)
Unit model (color)
Compressor Model / Manufacture
Fan Type × Number
Heat exchanger Type / Diameter
Dimension
Outdoor unit
Drainage pipe (material , I.D./O.D.)
Refrigerant control method
Defrosting
Volume of Accumulator L
Noise level
Type of Four way valve
material of reduce noise
crankcase heater power W
Weight (Net / Shipping)
Refrigerant Type / Charge
Pipe
PIPING
Connecting Method
Between I.D &O.
External （L×W×H）
Package （L×W×H）
External （L×W×H）
Package （L×W×H）
Type
Speed
Fan motor output power kW
Air-flow(H-M-L)
Total area
Temp. scope ℃
External （L×W×H）
Package （L×W×H）
Recharge quantity
Liquid
Gas
MAX.Drop 20
MAX.Piping length
BTU/h
W
W
BTU/W
A / A
A
r/min
kW
m³/h
mm
mm×mm×mm
mm×mm×mm
mm
mm
kW
dB(A)
kg / kg
mm×mm×mm
mm×mm×mm
kg / kg
r/min
m³/h
mm
m²
mm×mm×mm
mm×mm×mm
mm
mm/mm
dB(A)
kg / kg
g
g/m
mm
mm
m
m 30
D28NAMBEA
lin
28000 32000
3200 3300
4500 5500
8.75 9.7
3
/
H
3N 380V-400V 50H
Cooling：5.5/8.0 Heating：5.8/9.5
30
AD28NAMBEA(WHITE)
CentrifugalX 2
980 +30/890 +30/810 +50
0.13
1470/1300/1100
TP2M/9.5
0.19
2-7
990×650×30
1137×800×32
PVC 26/3
Wired+Remote
/
35/32/2
40/5
/
R407C 2550
60
9.52
15.88
flared
Coo
g
eating
z
D
/
/
/
/
///
/
/
/
/
/
///////
/
/
/
/
8
7
5
0
0
2
9
Z
item Model
A
Function
Capacity
Total power input
Max. power input
EER or COP
Dehumidifying capacity 10‐³×m³/h
Power cable
Power source N，V，H
Running /Max.Running
Start Current
Unit model (color)
Fan Type × Number
Speed(H-M-L)
Fan motor output power
Air-flow(H-M-L)
Heat exchanger Type / Diameter
Total Area m²
Temp. scope ℃
Dimension
Indoor unit
Drainage pipe (material , I.D./O.D.)
Control type (Remote /wired)
Fresh air hole dimension
Electricity Heater /
Noise level (H-M-L)
Weight (Net / Shipping)
Dimension
Panel
Weight (Net / Shipping)
Unit model (color)
Compressor Model / Manufacture
Fan Type × Number
Heat exchanger Type / Diameter
Dimension
Outdoor unit
Drainage pipe (material , I.D./O.D.)
Refrigerant control method
Defrosting
Volume of Accumulator L
Noise level
Type of Four way valve
material of reduce noise
crankcase heater power W
Weight (Net / Shipping)
Refrigerant Type / Charge
Pipe
PIPING
Connecting Method
Between I.D &O.
External （L×W×H）
Package （L×W×H）
External （L×W×H）
Package （L×W×H）
Type
Speed
Fan motor output power kW
Air-flow(H-M-L)
Total area
Temp. scope ℃
External （L×W×H）
Package （L×W×H）
Recharge quantity
Liquid
Gas
MAX.Drop 20
BTU/h
W
W
BTU/W
A / A
A
r/min
kW
m³/h
mm
mm×mm×mm
mm×mm×mm
mm
mm
kW
dB(A)
kg / kg
mm×mm×mm
mm×mm×mm
kg / kg
r/min
m³/h
mm
m²
mm×mm×mm
mm×mm×mm
mm
mm/mm
dB(A)
kg / kg
g
g/m
mm
mm
m
mMAX.Piping length 30
C28NACBEA
lin
28000 32000
3200 3300
4500 5500
8.75 9.7
3
/
H
3N 380V-400V 50H
Cooling：5.5/8.0 Heating：5.8/9.5
30
AC28NACBEA(WHITE)
CentrifugalX2
1300 +30/1250 +40 /1150 +50
0.04
1300/1250/1150
TP2M/9.5
0.19
2-7
1320×715×23
1380×770×30
PVC 18/2
Remote
/
42/40/3
40/5
/
R407C 2550
60
9.52
15.88
flared
Coo
g
eating
z
item Model
A
Z
7
9
0
0
2
5
0
/
/////////
///
/
///
/
/
/
30
D
11-
Function
Capacity
Total power input
Max. power input
EER or COP
Dehumidifying capacity 10‐³×m³/h
Power cable
Power source N，V，H
Running /Max.Running
Start Current
Unit model (color)
Fan Type × Number
Speed(H-M-L)
Fan motor output power
Air-flow(H-M-L)
Heat exchanger Type / Diameter
Total Area m²
Temp. scope ℃
Dimension
Indoor unit
Drainage pipe (material , I.D./O.D.)
Control type (Remote /wired)
Fresh air hole dimension
Electricity Heater /
Noise level (H-M-L)
Weight (Net / Shipping)
Dimension
Panel
Weight (Net / Shipping)
Unit model (color)
Compressor Model / Manufacture
Fan Type × Number
Heat exchanger Type / Diameter
Dimension
Outdoor unit
Drainage pipe (material , I.D./O.D.)
Refrigerant control method
Defrosting
Volume of Accumulator L
Noise level
Type of Four way valve
material of reduce noise
crankcase heater power W
Weight (Net / Shipping)
Refrigerant Type / Charge
Pipe
PIPING
Connecting Method
Between I.D &O.
External （L×W×H）
Package （L×W×H）
External （L×W×H）
Package （L×W×H）
Type
Speed
Fan motor output power kW
Air-flow(H-M-L)
Total area
Temp. scope ℃
External （L×W×H）
Package （L×W×H）
Recharge quantity
Liquid
Gas
MAX.Drop 20
MAX.Piping length
BTU/h
W
W
BTU/W
A / A
A
r/min
kW
m³/h
mm
mm×mm×mm
mm×mm×mm
mm
mm
kW
dB(A)
kg / kg
mm×mm×mm
mm×mm×mm
kg / kg
r/min
m³/h
mm
m²
mm×mm×mm
mm×mm×mm
mm
mm/mm
dB(A)
kg / kg
g
g/m
mm
mm
m
m
B28NACBEA
lin
28000 32000
3200 3300
4500 5500
8.75 9.7
3
/
H
3N 380V-400V 50H
Cooling：5.5/8.0 Heating：5.8/9.5
30
AB28NACBEA(WHITE)
Centrifugal×1
700+30/590+40/470+50
0.04
1300/1100/870
TP2M/
0.19
2-7
840×840×24
910×910×30
PVC 26/3
Remote
/
39/37/3
28/3
950x950x80
980x980x100
6/9
/
R407C 2550
60
9.52
15.88
flared
SAFETY PRECAUTIONS
3 SAFETY PRECAUTIONS
Please read these "Safety Precautions" first then accurately execute the installation work.
Though the precautionary points indicated herein are divided under two headings, and
those points which are related to the strong possibility of an installation done in error
CAUTION
resulting in death or serious injury are listed in the section. However, there is also a
possibility of serious consequences in relationship to the points listed in the section as well.
In either case, important safety related information is indicated, so by all means, properly observe all that is mentioned.
After completing the installation, along with confirming that no abnormalities were seen from the operation tests, please
explain operating methods as well as maintenance methods to the user (customer) of this equipment, based on the owner's
manual.
Moreover, ask the customer to keep this sheet together with the owner's manual.
WARNING
WARNING
CAUTION
WARNING
This system should be applied to places of office, restaurant, residence and the like. Appliaction to inferior
environment such as engineering shop could cause equipment malfunction.
Please entrust installation to either the company which sold you the equipment or to a professional contractor.
Defects from improper installations can be the cause of water leakage, electric shocks and fires.
Execute the installation accurately, based on following the installation manual. Again, improper installations can
result in water leakage, electric shocks and fires.
When a large air-conditioning system is installed to a small room, it is necessary to have a prior planned
countermeasure for the rare case of a refrigerant leakage, to prevent the exceeding of threshold concentration.
In regards to preparing this countermeasure, consult with the company from which you purchased the equipment,
and make the installation accordingly. In the rare event that a refrigerant leakage and exceeding of threshold
concentration does occur,there is the danger of a resultant oxygen deficiency accident.
For installation, confirm that the installation site can sufficiently support heavy weight. When strength is insufficient,
injury can result from a falling of the unit.
Execute the prescribed installation construction to prepare for earthquakes and the strong winds of typhoons and
hurricanes, etc. Improper installations can result in accidents due to a violent falling over of the unit.
For electrical work, please see that a licensed electrician executes the work while following the safety standards
related to electrical equipment, and local regulations as well as the installation instructions, and that only exclusive
use circuits are used.
Insufficient power source circuit capacity and defective installment execution can be the cause of electric shocks and
fires.
Accurately connect wiring using the proper cable, and insure that the external force of the cable is not conducted to
the terminal connection part, through properly securing it. Improper connection or securing can result in heat
generation or fire.
Take care that wiring does not rise upward, and accurately install the lid/service panel. Its improper installation can
also result in heat generation or fire.
- 12 -
SAFETY PRECAUTIONS
WARNING
When setting up or moving the location of the air conditioner, do not mix air etc. or anything other than the designated
refrigerant (please see nameplate) within the refrigeration cycle.
Rupture and injury caused by abnormal high pressure can result from such mixing.
Always use accessory parts and authorized parts for installation construction. Using parts not authorized by this
company can result in water leakage, electric shock, fire and refigerant leakage.
The position of indoor unit must be above the floor 2.5m.
CAUTION
Execute proper grounding. Do not connect the ground wire to a gas pipe, water pipe, lightening rod or a telephone
ground wire.
Improper placement of ground wires can result in electric shock.
The installation of an earth leakage breaker is necessary depending on the established location of the unit. Not
installing an earth leakage breaker may result in electric shock.
Do not install the unit where there is a concern about leakage of combustible gas.
The rare event of leaked gas collecting around the unit could result in an outbreak of fire.
For the drain pipe, follow the installation manual to insure that it allows proper drainage and thermally insulate it to
prevent condensation. Inadequate plumbing can result in water leakage and water damage to interior items.
- 13 -
4.Net dimensions of indoor and outdoor unit
Indoor unit Models
1) AB242ACBEA AB28NACBEA
2) AD242AMBEA AD28NAMBEA
-14-
3) AD242AHBEA
AC242ACBEA AC28NACBEA
4)
105 195 300
0
9
5
5
4
5
85 150
3
6
.
0
1
3
5
3
2
0
8
1
0
5
1
5
8
5
600
1320
1200
600
100
R
0
5
6
8
5
9
1
100
5
8
0
9
6
0
3
6
5
5
5
1
5
30
2
0
0
3
10
10
0
1
1
60
5
4
5
6
5)AU242AHBEA AU28NAHBEA
1818
380
840
185 185
70
580
Screw Hole
(M10)
1024
55
340
70
70
Power Wiring Terminal
Power Wiring
Distribution Hole
25
-15-
5.Installation Instructions
1. Installation Tools
1) Driver 2) Hacksaw 3) Hole core drill 4)Hexagon wrench(5mm) 5) Spanner(14,17,19 and
24mm) 6) Torque wrench(17,22,24mm) 7) Pipe cutter 8) Flaring tool
For example: use two spanner to joint the pipe
2. Standard Accessories
The standard accessories includes : 1) Measuring type 2) Reamer 3) Refrigerant oil 4) Gas
leakage detector or soap-and-water solution 5) Knife 6) Nipper
3. Installation Dimensions of Indoor & Outdoor units
Please to see the Mechanical Data
4. Installation procedures & Points of attention
4.1 The Order of Installation Work
Before installation Work division To ascertain the responsible for installation of pipes and wiring
Work Installation of indoor and
Make installation diagram To ascertain the pipe installation dimension and position of electronic
outdoor unit
Refrigerant pipe work Pay attention to dry, clean and seal
Drain pipe work Slant downward
Heat insulation work No gaps in the joint of heat insulation material
Wiring work (control wire,
power cord)
Set every set switch Should be complied with control wiring system diagram
Airtight test Close all the gas, liquid valve
Vacuum drying Should the vacuum pump that can reach 200Pa vacuity
Additional refrigerant Wire down the additional refrigerant amount on the outdoor unit body and
Test run adjustment Do test run to indoor unit by one to verify if there is wrong pipes
Training of use and
maintenance
4.2 Attentive matters of safety
· Before installing, do read this [Attention matter of safety] carefully to guarantee the proper installation.
· The below attentive matters are divided into [warning] and [note] two parts. When the wrong installation
occurs, it is very possible lead to death and severe injury, and other serious accidents will happen. For
those items are listed in [warning] part. But even the items very important contents related to safety, so
they must be obeyed.
· After installation, do test operation to verify everything is normal, after that please explains the use
method and maintenance method to the user according to the operation manual. Additionally, give the
installation manual together with operation manual to the user and ask them to keep them properly.
Work Main points
expansion valve, to make control wiring diagram
To prevent the ventilation from short circuit and guarantee repair space
Choose the proper wire and cord
record table
Explain to user, simultaneously provide all the documents
<Heat Pump model/Cooling Only model >
WARNING
BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING
INSTALLATION. FAILURE T O FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS
INJURY OR DEATH, EQUIPMENT MALFUNCTION AND/OR PROPERTY DAMAGE.
BE SURE TO READ INSTALLATION MANUAL FOR INDOOR UNIT WITH THIS MANUAL.
1. Accessories
Edging
"Edging" for protection of electric wires from an
opening edge.
2. Selection of the place of installation
Select the place of installation satisfying the following conditions and, at the same time, obtain
a consent from the client or user.
Place where air circulates.
Place free from heat radiation from other heat sources.
Place where drain water may be discharged.
Place where noise and hot air may not disturb the neighborhood.
Place where there is not heavy snowfall in the winter time.
Place where obstacles do not exist near the air inlet and air outlet .
Place where the air outlet may not be exposed to a strong wind.
Place surrounded at four sides are not suitable for installation. A 1m or more of overhead
space is needed for the unit.
Mount guide-louvers to place where short-circuit is a possibility.
When installing several units, secure sufficient suction space to avoid short circuiting.
(1) Open space requirement around the unit
•
L2
Air
inlet
Air inlet
Air outlet
•L3
•L1
•500
(Servicing
space)
Distance
L1
L2
L3
Case
I
open
300
150
II III
open
0
300
Unit: mm
500
open
150
(2) Installation where the area with strong winds.
Install the unit so that the air outlet section of the unit must NOT be faced
toward wind direction.
NO
3. Installation of outdoor unit
(1) Installation
Fix the unit in a proper way according to the condition of a place where it is installed by referring to the following .
(a)
Concrete foundation
Anchor bolt
Note (1) Give enough room for the
concrete foundation to fix by anchor bolts.
Unit
Concrete foundation
Anchor bolt
Install the unit so that the angle of inclination must be less than 3 degrees.
Unit
Concrete foundation
To fix by bolts
Note (1) Place the concrete foundation deep
enough.
Wind direction
Foundation anchor
Unit
4. Refrigerant piping
(1) Outline piping
(2) Piping size
Model
Gas piping
Liquid piping
15.88(5/8")x1.0mm
6.35(1/4")x0.8mm
Install the removed flared nuts to the pipes to be connected,
24,28 series14,18 series
15.88(5/8")x1.0mm
9.52(3/8")x0.8mm
36,42 series
19.05(3/4")x1.0mm
9.52(3/8")x0.8mm
Flare connection
Indoor
unit
Gas pipe
Liquid
pipe
Check joint
Service valve
Flare connection
_
+
90 0.5
then flare the pipes.
(3) Limitations for one way piping length and vertical height difference.
One way piping length: less than 15m (for 14,18 series), less than 30m (for 24,28 series),
less than 50m (for 36,42 series).
Vertical height difference: Less than 5m (for 14,18 series), Less than 15m (for 24,28 series),
less than 30m (for 36,42 series).
Precautions for refrigerant piping
Do not twist or crush piping.
Be sure that no dust is mixed in piping.
Bend piping with as wide angle as possible.
Keep insulating both gas and liquid piping.
Check flare-connected area for gas leakage.
Outdoor
unit
(4) Purging method ( the refrigerant is R407C)
To use vacuum pump
1
Detach the service port's cap of 3-way valve, the
valve rod's cap for 2-way valve and 3-way's, connect
the service port into the projection of charge hose
(low) for gaugemanifold. Then connect the projection
of charge hose (center) for gaugemanifold into
vacuum pump.
2
Open the handle at low in gaugemanifold, operate
vacuum pump. If the scale-moves of gause (low)
reach vacuum condition in a moment, check 1 again.
3
Vacuumize for over 15min. And check the level gauge
which should read -0.1 MPa (-76 cm Hg) at low
pressure side. After the completion of vacuumizing,
close the handle 'Lo' in gaugemanifold and stop the
operation of the vacuum pump.
Check the condition of the scale and hold it for 1-2min.
If the scale-moves back in spite of tightening, make
flaring work again, the return to the beginning of 3 .
4
Open the valve rod for the 2-way valve to and angle
ofanticlockwise 90 degree.
After 6 seconds later, close the 2-way valve and
malethe inspection of gas leakage.
2
Open
3
Close
2-way valve
3-way valve
Gaugemanifold
Open
90•
Open
90•
90•
For series 36,42
Vacuum pump
2-way valve
3-way valve
Gaugemanifold
Vacuum pump
2-way valve
3-way valve
For series 24,28
Service port
90•
4
90• for 6 sec.
2-way valve
3-way valve
Service port
4
90• for 6 sec.
For series 24,28
For series 36,42
5
No gas leakage?
6
Detach the charge hose from the service port, open
2-way valve and 3-way. Turn the valve rod
anticlockwise until hitting lightly.
7
To prevent the gas leakage, turn the service port's
cap, the valve rod'd cap for 2-way valve and 3-way's
a lottle more than the point where the torque
increases suddenly.
In case of gas leakage, tighten
parts of pipe connection. If
leakage stops, then proceed
steps.
If it does not stop gas leakage, discharge
whole refrigerants from the serice port.
6
After flaring work again and vacuumize,
fill up prescribed refrigerant from the gas
cylinder.
6
6
2-way valve
3-way valve
6
6
2-way valve
Liquid pipe 9.52mm
3-way valve
Gas pipe 19.05mm
For series 36,42
For series 24,28
8
After attaching the each caps, check the gas
leakage around the caps.
CAUTION:
If the refrigerant of the air conditioner leaks, it is necessary to
make
all the refrigerant out, then charge the liquid refrigerant
into air conditioner according to the amount marked on the
name plate.
Service port cap
7
2-way valve
3-way valve
7
7
Valve rod cap
For series 24,28
Valve rod cap
2-way valve
3-way valve
7
Valve rod cap
Service port cap
7
For series 36,42
If needing to remove the refrigerant gas when installation or repair , please refer to the following procedures:
1. Cut off the power
2. (After confirming the power is cut off) pull the power cable plug terminals of the low-pressure pressure-switch out.
3. (After confirming the power cable terminals of the low-pressure pressure-switch is cut off) After powering on the unit again
and switch to COOLING mode,perform refrigerant gas removing according to the normal refrigerant gas removing procedure.
4. After finishing refrigerant gas removing , cut off the power , then insert the power cable terminals of the low-pressure
pressure-switch properly.
5. Electric wiring
WARNING
DANGER OF BODILY INJURY OR DEATH
TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE
MAKING ANY ELECTRIC CONNECTIONS. GROUND CONNECTIONS MUST BE
COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS.
(1) Selection of size of power supply and interconnecting wires.
Precautions for Electric wiring
Electric wiring work should be conducted only by authorized personnel.
Do not connect more than three wires to the terminal block. Always use round type crimped
terminal lugs with insulated grip on the ends of the wires.
Use copper conductor only.
Select wire sizes and circuit protection from table below. (This table shows 20 m length
wires with less than 2% voltage drop.)
Item
Model
36,42 series, 28 series
(380-400V,3N~,50Hz)
14,18, 24, 28 series
(1PH,220-230V,50Hz)
Phase
3
1
Circuit breaker
Switch breaker
(A)
Overcurrent protector
rated capacity (A)
30 20 2.5mm
40 26 4.0mm
Power source
wire size
(minimum)
Earth leakage breaker
Switch
breaker
2
2
30 30mA
40
Leak
current
30mA
Outdoor Unit Installation
1. Accessories
Edging
"Edging" for protection of electric wires from an
opening edge.
2. Selection of the place of installation
Select the place of installation satisfying the following conditions and, at the
same time, obtain a consent from the client or user.
Place where air circulates.
Place free from heat radiation from other heat sources.
Place where drain water may be discharged.
Place where noise and hot air may not disturb the neighborhood.
Place where there is not heavy snowfall in the winter time.
Place where obstacles do not exist near the air inlet and air outlet .
Place where the air outlet may not be exposed to a strong wind.
Place surrounded at four sides are not suitable for installation. A 1m or more
of overhead space is needed for the unit.
Mount guide-louvers to place where short-circuit is a possibility.
When installing several units, secure sufficient suction space to avoid short
circuiting.
(1) Open space requirement around the unit
Note :
(1). Fix the parts with screws
(2).Don't intake the strong wind directly to the
outlet air-flow hole.
(3).A one meter distance should be kept from the
unit top
(4).Don't block the surroundings of the unit with
sundries
Unit: mm
III
500
open
150
Wind direction
L2
Air
inlet
Distance
L1
L2
L3
Case
Air inlet
Air outlet
I
open
300
150
L3
500
(Servicing
space)
L1
II
open
0
300
(2) Installation where the area with strong winds.
Install the unit so that the air outlet section of the unit must NOT be faced
toward wind direction.
NO
(2) Piping size
AU242AHBEA
Liquid pipe
Gas pipe
9.52x0.8mm
15.88x1.0mm
90+0.5
Install the removed flare nuts to
the pipes to be connected, then
flare the pipes.
(3) Limitations for one way piping length and vertical height difference.
One way piping length:
less than 30m (for
Vertical height difference:
less than 20m (for
AU242AHBEA
AU242AHBEA
Precautions for refrigerant piping
Do not twist or crush piping.
Be sure that no dust is mixed in piping.
Bend piping with as wide angle as possible.
Keep insulating both gas and liquid piping.
Check flare-connected area for gas leakage.
).
).
(4) Piping connection
Connecting method (indoor unit)
Apply refrigerant oil at half union as large and flare nut.
To bend a pipe, give the roundness as possible not to crush
the pipe.
When connecting pipe, hold the pipe centre to centre then
screw nut on by hand, refer to Fig.
Be careful not to let foreign matters, such as sands enter
the pipe.
Forced fastening without centering may damage
the threads and cause a gas leakage.
Pipe dia Fastening torque
Liquid pipe 9.52mm
Gas pipe 15.88mm
42N.m
98N.m
5. Air discharging method
After finishing connection of refrigerant pipe, it shall perform air tightness test.
The air tightness test adopts nitrogen tank to give pressure according to the pipe connection
mode as the following figure shown.
The gas and liquid valve are all in close state. In order to prevent the nitrogen entering the
circulation system of outdoor unit, tighten the valve rod before giving pressure (both gas
and liquid valve rods).
Indoor
Outdoor
Low pressure peizometer
3-way valve totally closed
(Gas side)
High pressure peizometer
VL VH
Meter separator
Completely tightened
Completely tightened
Indoor units
Flare part
Flare part
2-way valve totally closed
(Liquid side)
First step: 0.3MPa (3.
0kg/cm2g) pressurize
over 3 minutes.
Second step: 1.5Mpa
(15kg/cm2g) pressurize
over 3 minutes. Large
leakage will be found.
Third step: 3.0 MPa
(30kg/cm2g) pressurize
about 24 hours. Little
leakage will be found.
Discharging valve
Manhole
Outdoor units
Dropping valve
Nitrogen tank
Check if the pressure drops
The pressure does not drop-passed
The pressure drops-check the leaking point.
From pressurizing to 24 hours later, each 1* difference of ambient temperature
will make 0.01MPa(0.1kg/cm2g) pressure change. It shall be corrected during test.
Checking the leaking point
In the first to third test steps, if the pressure drops, check the leakage in each joint
use sense of hearing, feeling and soap water, etc. methods to find the leaking point.
After confirming the leaking point, welding it again or tighten the nut tightly again.
6. Piping and indoor unit vacuumizing
Use vacuum pump to perform vacuumizing. It is strictly forbidden to use the
refrigerant to remove the air inside the system.
After air tightness test and discharging all the nitrogen, connect the vacuum pump
as the following figure shown.
Indoor
Outdoor
Low pressure peizometer
3-way valve totally closed
(Gas side)
High pressure peizometer
V L VH
Meter separator
Completely tightened
Completely tightened
Indoor units
Flare part
Flare part
Discharging valve
P
Vacuum pump
Outdoor units
2-way valve totally closed
(Liquid side)
It shall use the vacuum pump of (lower than -755mmHg)high vacuum degree and large air
discharging (over 40l/min).
The vacuumizing time depends on the length of the connecting pipe, generally is 1~2 hours.
When vacuumizing, it shall be confirmed both gas and liquid side valves are closed.
If after 2 hours vacuumizing, it cannot reach the vacuum degree below -755mmHg, it can be
vacuumized for other 1 hour.
If after 3 hours vacuumizing, it still cannot reach the vacuum degree below -755mmHg, check
if there is any leaking point and repair the them.
If after over 2 hours vacuumizing, the vacuum degree is below -755mmHg, close the V
and VH on the meter separator and stop vacuumizing. 1 hour later to confirm if the vacuum
degree changes. If changes, it indicates there is leaking point in the system. Check the leaking
point and repair.
After finishing the above vacuumizing, change the vacuum pump into refrigerant pump to
charge the refrigerant.
7. Charging amount of refrigerant
When the total length (L) of the two indoor units' connecting pipe is less than 5m, it is
unnecessary to charge additional refrigerant.
If the connecting pipe (L) exceeds 5m, it shall charge Mg additional refrigerant per meter.
That is: Refrigerant charging amount = (L-5) x M (g)
L
For AU242AHBEA, M=65
Only in COOLING operation can charge the additional refrigerant.
When charging, the refrigerant shall be charged from the charging nozzle of low pressure vavle.
Be carefull when charging refrigerant, do not let the air mix into the system,and must charge the
additional refrigerant in liquid condition.
Warning
· The distributing shop, where you brought the air conditioner, or the specified shops shall do the
installation work. If you do the installation work by yourself, the improper installation will cause water
leakage, electric shock fire and other accidents.
· The installation work shall be in line with what the installation manual specified. If installation is not
proper, water leakage, electric shock, fire and other accidents will occur.
· Install the conditioner to a place where can definitely stand its weight. Please not firm enough, it will
cause droop down of unit resulting in body hurt.
· The installation work shall be preventive to typhoon and earthquake. If the installation work is not met
with the requirements, overturn of the unit will occur resulting in accidents.
· The wiring work should be down by a qualified person and referred to the “technical standard of electric
equipment “, ”indoor wiring regulation” and what the manual specified. Do use special circuit. If the
capacity of the circuit is not enough or bad work, electric shock, fire and other accidents will happen.
· Using the specified cable to do wiring work and connecting firmly and properly. Fix the connecting part
of the terminals to prevent it from the external force. Improper connection and fixing will cause heating
and fire etc. accidents.
· Wring shall be kept in correct shape avoiding extrusion. After installation, the electric box cover and the
external panel shall not nip the wire. Improper installation will cause heating and fire etc. accidents.
· when setting or moving the air conditioner do not let the air and things alike get into the refrigeration
system except the specified refrigerant (R407C). If air and other things enter, abnormal high pressure will
occur, which easily cause breaks and body injuries etc. accidents.
· When installing, do not use the accessories or specified parts. If not using the parts specified by our
company, water leakage, electric shock, fire and refrigerant leakage will occur.
· Do not lead the drainpipe to where the sulphur gas may be involved. Otherwise, the poisonous gas will
enter into the door.
· During installation, if refrigerant leakage occur, do the ventilation work immediately. As soon as the
refrigerant gas meets fire, poisonous gas will be produce. If the refrigerant gas enter into room and meet
the air blowing heater, heater or stove etc. fire source, the poisonous gas may be produced. After
installation, confirm there is no leakage of refrigerant.
· Do not install the unit in a place where the combustible gas may be leaks. In any case the
combustible gas leaks and accumulated around the unit, fire accident will occur.
· Do heat insulation work to the refrigerant gas pipes and liquid pipes to reach the purpose of heat
preservation. If the heat insulation measure is not sufficient, water generated by condensing dew will drip
leading to wet the floor and indoor articles.
· Do not damage the power line or change it arbitrarily to avoid occurrence of fire or electric shock.
· Do not extend the power line or using other electric appliance in the same power receptacle to avoid fire
or electric shock.
Note
· Do grounding work. Do not connect the grounding wire to gas pipe, tap, lighting rod or telephone line.
Improper grounding will cause electric shock.
·In some places the electric leakage breaker shall be installed. If do not install the breaker, electric shock
may occur.
·After installation, power on to do electric leakage detecting test.
5.3 Special Work and Main Points in Installation
Warning
· During installation, if refrigerant leakage occurs,
take ventilation measurement immediately.
·As soon as the leaked refrigerant gas meets fire,
poisonous gas will generate.
A. Choosing of pipes
According to the following indoor unit and unit installation diagram to choose the material and size of
pipes and branch pipes.
B. Connection of pipes
1. Method of pipe connection
·The pipe shall be as short as possible to guarantee efficiency
·Daub the refrigerant oil on the connection and flare nut
· When bending the pipes, give the roundness as large as possible, to avoid crashing the pipes
·To connect the pipe, fit the center and screw the nut with hand, the use spanner or torque
wrench to tighten it. The fastening torque showed in below table, and shown in figure.
·Be careful alien matter, such as sands, water etc. shall not enter the pipes. Forced fastening
without careful centering may damage the threads and cause gas leakage
2. Welding of pipes
·In welding, the nitrogen shall be used to avoid oxidation of the pipe inner part.
·The refrigerating pipe shall use clean new pipes. When working, it shall take steps to prevent
water and dust from entering.
·When loosening and tightening the nuts, two spanners shall be used. If using one spanner, it can
not reach the desired degree of tightness.
Using the specified fastening torque to fasten nuts.
Pipe diameter (mm) Installation torque(N.M.) Fastening torque (N.M.)
Φ6.35
Φ9.52
Φ1 2.7
Φ15.88
11.8(1.20kgf.m) 13.7(1.4kgf.m)
24.5(2.50kgf.m) 29.4(3.0kgf.m)
49.0(5.0kgf.m) 53.9(5.5kgf.m)
78.4(8.0kgf.m) 98.0(10.0 kgf.m)
·After finishing installation, confirm the refrigerant
gas dose not leak.
·If the refrigerant gas leaks in the room, once it
meets heater, burner and gas stove etc. fire
source, the poisonous gas will generate.
5 Checks after the installation
After the installation, please to check the connection of wire:
If the wire have the same diameter in the two sides of the terminal
If the wire placed on both the side of terminal but one side
To see the follow figure:
Ο means the right connection × means wrong
INSTALLATION INSTRUCTIONS
5 INSTALLATION INSTRUCTIONS
5.1 Installation tools
1. Cross screwdriver 2 .Metal saw 3 .60,70mm drill 4. Inner hexagon spanner,
shifting spanner 5 .Spanner(14, 17, 19,24,27mm diameter) 6. Pipe cutter
7. Pipe expander 8. Knife 9 .Pliers 10. Leak detector or soap liquor
11. Measuring tape 12 .Scraper 13. Refrigeration oil 14 .Vacuum pump
15 .Flat screwdriver
5.2 Standard accessories
Please check if your unit is delivered with following
Part name
QTY
Shape
Part name
QTY
Shape
Clamp
2 Piece
7
Insulator
1 Piece 1 Piece
8 9
Insulator Sealing pad Sealing pad Sealing pad
For liquid pipeFor gas pipe
Washer
8 Piece
Dry battery
2 Piece 1 Piece 1 Piece 2 Piece
R03, 7#
Clamp Paper pattern
6 Piece
Drain hose
1 Piece
5.3 Installation of indoor unit
5.3.1 Before installation
Determine the way kto carry unit to installation place.
Don't remove packing until unit reaches installation place.
If unpacking is unkavoidable, protect unit properly.
5.3.2 Selection of installation place
(1) Installation place shall meet the following and agreed by customers:
Place where proper air flow can be ensured.
No block to air flow.
Water drainage is smpoth.
Place strong enough to support unit weight.
Place where inclination is not evident on ceiling.
Enough space for mainenance.
Indoor and outdoor unit piping length is within limit. (Refer to Installation Manual for outdoor unit.)
Indoor and outdoor unit, power cable, inter unit cable are at least 1 m away fromT.V. radio. This
is helpful to avoid picture disturbance and noise. (Even if 1 m is kept, noise can still appear if radio
wave is strong)
54
1 Set
1110
12
Small sizeMedium sizeLarge size
6321
Screw(M5 size)
3 Piece
For installation
of
paper pattern
[Other]
Operation
Manual
Ornament
panel
Remote
controller
INSTALLATION INSTRUCTIONS
(2) Ceiling height
Indoor unit can be installed on ceiling of 2.5-3m in height. (Refer to Foeld setting and Installation
8
Manual of ornament panel.)
(3) Install suspending bolt. Check if the installation place is strong enough to hold weight. Take
necessary measures in case it is not safe. (Distance between holes are marked on paper pattern.
Refer to paper pattern for place need be reinforced)
Installation space
Air outlet
1500 Over
Air outlet
Air inlet
2500 Over
260
1500 Over
Air outlet
1500 Over
Air inlet
Air inlet
260
1500 Over
5.3.3 Preparation
(1) Position of ceiling opening between unit and suspending bolt.
Unit: mm
HBU-14
Indoor unit 570mm
ceiling opening 600mm
Ornament panel 630mm
H BU-18
Distance between
suspending bolts 460mm
Indoor unit 570mm
Ceiling opening 600mm
Ornament panel 630mm
Ceiling hole size 690
Suspension bolts pitch 620
Overlap between ceiling and
ornament panel shall be 15mm
Ceiling
Overlap between ceiling and
ornament panel shall be 15mm
Ceiling
Ornament panel
Ornament panel
Suspending bolts
210mm
335mm
35mm
Suspending bolts
260mm
Suspension bolts pitch 485
Suspension bolts pitch 465
AB24,28
INSTALLATION INSTRUCTIONS
Refrigerant pipe
780
840(Indoor unit)
890(Ceiling opening)
950(Ornament panel)
(Distance between suspending bolts)
AB36,42
890(Ceiling opening)
1070
(Distance between suspending bolts)
515
(Distance between suspending bolts)
A
840(Indoor unit)
890(Ceiling opening)
950(Ornament panel)
A
Suspending bolts
Suspending bracket
Ceiling
Note:
Dimension of ceiling opening marked with * can be as
large as 910mm, but the matching part of ceiling with
ornament panel shall be over 20mm.
A
(160)
(Distance between suspending bolts)
515
860(Ceiling opening)
780
20 Over
(2) Cut an opening in ceiling for installation if necessary. (when ceiling already exists.)
Refer to paper pattern for dimension of ceiling hole.
Connect all pipings (refrigerant, water drainage), wirings (inter unit cable) to indoor unit, before
installation.
Cut a hole in ceiling, may be a frame should be used to ensure a smooth surface and to prevent
vibration. Contact your real estate dealer
(3) Install a suspending bolt.
(Use a M10 bolt)
To support the unit weight, anchor bolt shall be used in the case of already exists ceiling. For new
ceiling, use built-in type bolt or parts prepared in the field.
Before going on installing adjust space between ceiling.
<Installation example>
Roof
Anchor bolt
Long nut
50~100
Suspending bolt
Ceiling
Note: All the above mentioned parts shall be prepared in field.
Loading...