Midea CSU-05HCAA, CSU 12HCAA, CSU-09HCAA, CSU-07HCAA, CSU-21HCAA Maintance Manual
...
Installation and Maintenance Manual
CSU-05HCAA CSU-07HCAA
CSU-09HCAA CSU-12HCAA
CSU-18HCAA CSU-21HCAA
CSU-24HCAA
CSU-09HHAA CSU-12HHAA
CSU-18HHAA CSU-21HHAA
CSU-24HHAA
Content
I.Designations and Functions of parts
II
. Dimensions
III.Specification............................
IV.Wiring diagram...............
V. Refrigeration circuit
VI.Installation Instruction........................................13
VII. Troubleshooting.
VIII.Parts list
Installation & Maintenance Manual
I. Designations and functions of parts
5K/7K/9K/12K/18K/21K/24K Series Indoor Unit
panel
air inlet
HUALING
operating section
(with the front panel opened)
power connection
display part
filter net
Run indication
Sleep indication
Remote control signal receiving window(only 9k)
horizontal vane
Double ,8, display
Timer indication
HUALING
Operation section of
9K series units
(standby configuration)
5K/7K/9K Series Outdoor unit
Power indication
vertical vane
Power indication
Remote controller
Remote control signal
Operation section of
12K series units
Temperature
indication
Run indication
Emergency
switch
receiving window
Operation section of
18K/21K/24K series units
Air inlet
Piping
Drainage hose
Air outlet
1
Installation & Maintenance Manual
I. Designations and functions of parts
12K/18K Series Outdoor unit
Air inlet
Piping
Drainage hose
21K/24K Series Outdoor unit
Air outlet
Air inlet
Piping
Drain hose
Air outlet
2
•••
Installation & Maintenance Manual
II .Dimensions
CSU-05HCAA CSU-07HCAA CSU-09HCAA
CSU-09HHAA indoor unit
mounting unit
•••
••
Body Center
•••
HUALING
•••
indoor unit
porthole
air inlet
Power Cable
air outlet
CSU-12HCAA CSU-12HHAA indoor unit
Wireless Remote controller
mounting unit
liquid pipe 6.35 1/4F
gas pipe 9.52 3/8F
external diameter after
heat insulation
drain hose
external diameter after
heat insulation
28
Unit:mm
mounting unit
HUALING
indoor unit
porthole
3
air inlet
air outlet
wireless remote controller
Mounting board
liquid pipe 6.35 1/4F
gas pipe 12.7 1/2F
external diameter after
heat insulation 35
drain hose
external diameter after
heat insulation
Unit
Installation & Maintenance Manual
II.Dimensions
CSU-18HCAA CSU-18HHAA CSU-21HCAA CSU-21HHAA
CSU-24HCAA CSU-24HHAA indoor unit
Four holes
Wireless remote controller
Indoor unit
Mounting board
HUALING
Porthhole
Air inlet
Power cable
2m to the right side
1m to the left side
Air outlet
190
Mounting board
liquid pipe 6.35 1/4F
gas pipe 12.7 1/2F
5
external diameter after
heat insulation 35
Drainage pipe
16
external diameter after
heat insulation
28
unit
4
II.Dimensions
Outdoor unit
air inlet
air inlet
air outlet
Installation & Maintenance Manual
Above
100mm Above
100mm Above
350mm Above
If there exists only
50-60 cm clearance
from the back to the wall,
the left side of the outdoor
unit must be entirely open.
100mm Above
500mm
piping for liquid pipe joint 6.35
mounting hole distance
OUTDOOR UNITS DIMENSION
Model
CU-05CA
CU-07CA
CU-09C(H)A
A
B
C
D
E
piping for gas pipe joint 12.7
F
G
H
I
CU-12C(H)A
CU-18C(H)A
CU-21C(H)A
CU-24C(H)A
5
III. Specification
Installation & Maintenance Manual
Model
CSU-05HCAA
CSU-07HCAA
CSU-09HCAA
CSU-09HHAA
Performance data
Functions
Power supply
kW
l/h
3
m/h
A
F
kW
%
A
A
A
Capacities
Other
electrical
data
Capacity
Dehumidifying capacity
Air supply capacity
Power supply capacity
Running capacitor
Input power
Power factor
Stockstill current
Compressor motor current
Fan motor current
EER
Winding resistance(at )
Compressor
Indoor fan motor
Outdoor fan motor
Dimensions
Weight
Other data
Model
Winding resistance(at )
Winding resistance(at )
Length
Indoor unit
Width
Heigth
Length
Outdoor unit
Width
Height
Indoor unit
Outdoor unit
Noise
Fan speed
Fan speed
stage
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Refrigerant R22
Thermister(at )
mm
mm
mm
mm
mm
mm
kg
kg
( )
dB A
( )
dB A
r/min
r/min
g
k
1 Test conditions
cooling indoor unit dry bulb 27 wet bulb19
outddor unit dry bulb 35 wet bulb 24
2 The data should subject to the nameplate they are different from those on the nameplate.
1.42
0.6
410
10
20
0.5
97
12
2.4
In0.22/out0.25
3.1
SD091CV-H3BU
740
243
200
600
600
232
232
502
502
7
23
5 and swing
26-39
54
1100/980/900
870
3
1
400
10 10
In0.23/out0.48
PH108X1C
220 VAC 50Hz
1.932
0.65
430
10
25
0.62
97
15
2.8
3.12
740
243
200
600
232
502
7
23
5 and swing
26-39
54
1100/980/900
870
3
1
470
10
2.2
0.91
430
15
25
0.775
97
19.8
3.4
in0.23/out0.48
PH135X1C-8DZD2
740
243
200
600
232
502
7
23
5 and swing
29-39
54
1100/980/900
870
3
1
645
10
0.82/0.72
in0.35/out0.86
KH145VHEA
5 and swing
1100/980/900 cooling)
950/870/800(heating)
2.2/2.4
0.91
430
15
20
97
18
3.9
2.7
740
243
200
600
232
502
7
23
29-39
54
870
3
1
680
6
III. Specification
Installation & Maintenance Manual
Model
CSU-12HCAA
CSU-12HHAA
CSU-18HCAA
CSU-18HHAA
Performance data
Cooling-only
4.5
1.9
680
8.35
50
1.8
97
39
8.1
in0.28/out0.56
2.5
Capacities
Other
electrical
data
Functions
Power supply
Cooling capacity
Dehumidifying capacity
Air supply capacity
Power supply capacity
Running capacitor
Input power
Power factor
Stockstill current
Compressor motor current
Fan motor current
EER
m/h
kW
l/h
3
A
F
kW
%
A
A
A
Cooling-only
3.1
1.27
490
5.4
35
1.15
97
29.9
5.55
in0.28/out0.56
2.68
Cooling AND HEATING
220 VAC 50Hz
3.2/3.42
1.31
490
5.4/5.2
35
1.16/1.13
97
29.9
5.55
in0.23/out0.48
2.75/3.0
Winding resistance(at )
Compressor
Indoor fan motor
Outdoor fan motor
Dimensions
Weight
Other data
Model
Winding resistance(at )
Winding resistance(at )
Length
Indoor unit
Width
Heigth
Length
Outdoor unit
Width
Height
Indoor unit
Outdoor unit
Noise
Fan speed
Fan speed
stage
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Refrigerant R22
Thermister(at )
PH215X2C-8FTC
mm
mm
mm
mm
mm
mm
kg
kg
( )
dB A
( )
dB A
r/min
r/min
g
k
740
200
243
772
254
540
8
35
5 and swing
35-41
54
1100/980/900
780
3
1
780
10
PH215X2C-8FTC
740
200
243
772
254
540
8
35
5 and swing
35-41
54
1200/1120/1050 cooling)
1260/1160/1100(heating)
780
3
1
115 0
10
TH310VEEC
1015
320
200
772
254
540
14
35
5 and swing
35-46
55
1050/980/900
780
3
1
1020
10
1 Test conditions
cooling indoor unit dry bulb 27 wet bulb19
outddor unit dry bulb 35 wet bulb 24
2 The data should subject to the nameplate they are different from those on the nameplate.
Cooling AND HEATING
8.35/7.6
1.8/1.65
8.1
in0.23/out0.48
TH310VEEC
5 and swing
1050/980/900 cooling)
1050/1000/960(heating)
4.48/4.98
2.3
680
50
97
39
2.5/3.0
1015
320
200
772
254
540
14
35
35-46
55
780
3
1
1130
10
7
III. Specification
Installation & Maintenance Manual
Model
CSU-21HCAA
CSU-21HHAA
CSU-24HCAA
CSU-24HHAA
Performance data
Functions
Power supply
kW
l/h
3
m/h
A
F
kW
%
A
A
A
Capacities
Other
electrical
data
Capacity
Dehumidifying capacity
Air supply capacity
Power supply capacity
Running capacitor
Input power
Power factor
Stockstill current
Compressor motor current
Fan motor current
EER
Winding resistance(at )
Compressor
Indoor fan motor
Outdoor fan motor
Dimensions
Weight
Other data
Model
Winding resistance(at )
Winding resistance(at )
Length
Indoor unit
Width
Heigth
Length
Outdoor unit
Width
Height
Indoor unit
Outdoor unit
Noise
Fan speed
Fan speed
stage
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Refrigerant R22
Thermister(at )
mm
mm
mm
mm
mm
mm
kg
kg
( )
dB A
( )
dB A
r/min
r/min
g
k
1 Test conditions
cooling indoor unit dry bulb 27 wet bulb19
outddor unit dry bulb 35 wet bulb 24
2 The data should subject to the nameplate they are different from those on the nameplate.
5.1
2.0
680
8.9
50
1.92
97
42
9.3
in0.22/out0.25
2.65
SHW33TC4-U
1015
320
200
850
290
610
14
47
5 and swing
46
59
1200/1120/1000
820
3
1
1300
10 10
In0.23/out0.48
TH310VEEC
1260/1160/1100(heating)
220 VAC 50Hz
5.08/5.8
2.1
680
8.7/8.5
50
1.96/1.85
97
38/42
8.1
2.58/3.1
1015
320
200
850
290
610
14
47
5 and swing
46
59
1200/1120/1050
820
3
1
1300
10
5.98
2.45
730
11.5
35
2.4
97
52
11.5
In0.23/out0.48
SHV33YC6-G
1015
320
200
850
290
610
14
53
5 and swing
46
59
1280/1150/1050(cool)
910
3
1
1600
10
11.4/11.4
2.38/2.38
in0.35/out0.86
SHV33YC6-G
5 and swing
1280/1150/1050
5.94/6.63
2.43
730
50
97
52
11.5
2.48/2.8
1015
320
200
850
290
610
14
53
46
59
910
3
1
1600
8
Installation & Maintenance Manual
IV. Wiring diagram
Wiring diagram for heat pump indoor unit 5K/7K/9K/12K
3502Q0027230
AC-L44
TERMINAL
AC-L33
3/ON
4/COM
CNO7
Cn22
AC-N
AC-L55
AC-N1
HEAT
CNO8/CNO9
PT
CNO2
RT
CNO1
CNO4
CLEAR
CNI2
Optional
Wiring diagram for heat pump outdoor unit 5K/7K/9K/12K
9
Installation & Maintenance Manual
IV. Wiring diagram
Wiring diagram for heat pump indoor unit 18K/21K
VALVE
AC-L44
AC-L33
OUTFAN
CN-03
AC-N
CN08/CN09
3502Q0028679
Circuit principle diagram for outdoor unit 18K
3502Q0010653
Circuit principle diagram for outdoor unit 21K
3502Q0011916
BLK
S1
BLK
S2
10
Installation & Maintenance Manual
IV. Wiring diagram
Wiring diagram for heat pump indoor unit 24K
VALVE
AC-L44
AC-L33
OUTFAN
CN-03
AC-L22
AC-L
AC-N
CN08/CN09
3502Q0028680
X1
X2
X3
RELAY
Wiring diagram for only cooling indoor unit 24K
AC-L22
AC-L
AC-N
CN08/CN09
RELAY
3502Q0028680
X1
X2
X3
11
Installation & Maintenance Manual
IV. Wiring diagram
Wiring diagram for heat pump outdoor unit 24K
TO INDOOR UNIT
3502Q0027178
4-WAY VAVLE COIL
TO INDOOR UNIT
TEMP. THERMISTOR
Wiring diagram for only cooling outdoor unit 24K
3502Q0017666
12
V. Refrigerating circuit
Indoor
unit
Installation & Maintenacne Manual
Maximum height difference 5m
(regardless either unit is higher)
Max. Lenth of extended fitting pipe
Outdoor unit
Refrigerant replenishment (R22:g):
No refrigerant replenishment is required if extended length of fitting pipe is less than 7m.
If extended length of fitting pipe is over 7m, replenishing volume of refrigerant should be
calculated as per the following formula: replenishing volume Xg=15g/mX(A-7)m
Refrigerating circuit for heat pump type
Indoor unit Outdoor unit
4-way valve
Indoor heat
exchanger
Room-temperature
thermistor RT11
Pipe-temperature
thermisto
Connecting pipe
(with heat-insulating
pipe casing)
Joint of flared pipe
Shutoff valve
(with access door)
exchanger
Outdoor heat
Joint of flared pipe
Connecting pipe
(with heat-insulating
pipe casing)
Shutoff valve
13
Check valve
Compressor
Flow direction of refrigerant
Flow direction of refrigerant
Capillary(cooling)
Capillary(heating)
for cooling
for heating
V. Refrigerating circuit
Refrigerating circuit for only cooling type
Indoor unit Outdoor unit
Installation & Maintenance Manual
4-way valve
exchanger
Room-temperature
thermistor RT11
Indoor heat
Pipe-temperature
thermisto
Connecting pipe
(with heat-insulating
pipe casing)
Joint of flared pipe
Joint of flared pipe
Connecting pipe
(with heat-insulating
pipe casing)
Shutoff valve
(with access door)
Shutoff valve
Compressor
Flow direction of refrigerant
exchanger
Outdoor heat
Capillary (cooling)
Maxinmum length of fitting capillary pipe for heat pump unit
Outer diameter of fitting pipe:(mm)
Gas pipe
9.52
12.7
12.7
15.8
15.8
Liquid pipe
6.35
6.35
6.35
9.52
9.52
Capillary
(cooling)
3 1.4 850
3 1.6 650
4 2 900
4 2 800
42550
Model
9K
12K
18K
21K
24K
Max length
of extended
fitting pipe (m)
10
15
15
15
15
Max Height
difference
(m)
5
5
5
7
7
Max number
of bent pipes
10 spots
10 spots
10 spots
10 spots
10 spots
for cooling
Capillary
(heating)
3 1.6X450
3 1.6 350
4 2 650
4 2 600
4 2 250
Maxinmum length of fitting capillary pipe for only cooling unit
Max length
Model
5K
7K
9K
12K
18K
21K
24K
of extended
fitting pipe (m)
10
10
10
15
15
15
15
Max Height
difference
(m)
5
5
5
5
5
7
7
Max number
of bent pipes
10 spots
10 spots
10 spots
10 spots
10 spots
10 spots
10 spots
Outer diameter of fitting pipe:(mm)
Gas pipe
9.52
9.52
9.52
12.7
12.7
15.8
15.8
Liquid pipe
6.35
6.35
6.35
6.35
6.35
9.52
9.52
14
Capillary
(cooling)
3 1.4 1000
3 1.4X1000
3 1.4X1000
3 1.6 600
4 2 1000
42700
42500
Capillary
(heating)
VI. Installation instructions
1. Installation diagram
1-1.5K/7K/9K/12K
Above 120mm
H
UA
LING
Above 70mm
B
Installation & Maintenance Manual
Above 195mm
Above 30mm
C
Be careful!
Do not let drain hose run up.
Fitting pipe of pipeline may be led out
from back side, right side, lower side,
left side or left rear side.
Back side
Right
Rear
Downwards
Left rear
Front side
Left
6
5
Above 100mm
Above 500mm
Enclosed attachments
1
Mounting plate
2
Tapping screw ST4*25
3
Expansion plug
4
Expansion bolt
5
Battery for remote controller
6
Remote controller
Connecting cable
7
Above 100mm
Above 350mm
D
Above 100mm
7
E
A
Qty
Unit
Piece
1
Pcs
5
Pieces
5
Pieces
2
Pcs
2
Piece
1
Piece
1
Connect the pipeline at two sides, and
insulation should be carried out respectively.
Aerated plastics with a thickness of
8mm for heat insulation
If the pipeline is to be installed upon a
wall equipped with steel sheet
(galvanized sheet) or metal net, plank
with a thickness of 20mm should be
positioned between the wall and the
pipeline, or the pipeline should be
wrapped with 7~8 layers of insulating
plastic tape.
Installation attachments
A
Connecting pipe
Bandage
B
C
Tensioning rope
D
Masonry nail
Drain hose
E
Putty
F
G
Sealing oil
Qty
2
1
3
5
1
1
1
Unit
Pieces
Piece
Pcs
Pcs
Piece
Box
Bottle
15
VI. Installation instructions
1. Installation diagram
1-2.18K
Installation & Maintenance Manual
Above 105mm
1
234
Above 155mm
Be careful!
Do not let drain hose run up.
Above 24mm
HUALING
Fitting pipe of pipeline may be led out
from back side, right side, lower side,
left side or left rear side.
Back side
Right
C
Above 70mm
B
D
6
5
Rear
Downwards
Connect the pipeline at two sides, and
insulation should be carried out respectively.
Left rear
Front side
Left
Above 100mm
Above 500mm
Enclosed attachments
1
Mounting plate
2
Tapping screw ST4*25
3
Expansion plug
4
Expansion bolt
5
Battery for remote controller
6
Remote controller
Connecting cable
7
Above 100mm
Above
ove 100mm
Ab
7
A
350mm
Qty
1
5
5
2
2
1
1
E
Unit
Piece
Pcs
Pieces
Pieces
Pcs
Piece
Piece
Aerated plastics with a thickness of
8mm for heat insulation
If the pipeline is to be installed upon a
wall equipped with steel sheet
(galvanized sheet) or metal net, plank
with a thickness of 20mm should be
positioned between the wall and the
pipeline, or the pipeline should be
wrapped with 7~8 layers of insulating
plastic tape.
Installation attachments
A
Connecting pipe
Bandage
B
C
Tensioning rope
D
Masonry nail
Drain hose
E
Putty
F
G
Sealing oil
Qty
2
1
3
5
1
1
1
Unit
Pieces
Piece
Pcs
Pcs
Piece
Box
Bottle
16
VI. Installation instructions
1. Installation diagram
1-3.21K/24K
Installation & Maintenance Manual
Above
234
175mm
1
Above
242mm
Be careful!
Do not let drain hose run up.
Above 60mm
HUA
LING
Fitting pipe of pipeline may be led out
from back side, right side, lower side,
left side or left rear side.
Back side
70mm
C
Above
HUALING
6
5
Above
100mm
Above
100mm
B
D
100mm
Above
Right
Rear
Downwards
Connect the pipeline at two sides, and
insulation should be carried out respectively.
Aerated plastics with a thickness of
8mm for heat insulation
Left rear
Front side
Left
500mm
Above
Enclosed attachments
1
Mounting plate
2
Tapping screw ST4*25
3
Expansion plug
4
Expansion bolt
5
Battery for remote controller
6
Remote controller
Connecting cable
7
Above
7
A
350mm
Qty
1
5
5
2
2
1
1
E
Unit
Piece
Pcs
Pieces
Pieces
Pcs
Piece
Piece
Installation attachments
A
Connecting pipe
Bandage
B
C
Tensioning rope
D
Masonry nail
Drain hose
E
Putty
F
G
Sealing oil
17
If the pipeline is to be installed upon a
wall equipped with steel sheet
(galvanized sheet) or metal net, plank
with a thickness of 20mm should be
positioned between the wall and the
pipeline, or the pipeline should be
wrapped with 7~8 layers of insulating
plastic tape.
Unit
Qty
Pieces
2
Piece
1
Pcs
3
Pcs
5
1
Piece
Box
1
Bottle
1
Installation & Maintenance Manual
VI. Installation instructions
2.Safety Regulations
Please read safety instructions carefully before installation
All items listed here are extremely important safety instructions, which must be followed.
Legends and their meanings are listed as follows:
Warning
Users don't try to install by themselves
Improper installation may cause fire,
electric shock, loose of parts or water
leakage. Please contact a Hualing agent
for installation and maintenance.
Cover of electrical components on
indoor unit and maintenance board on
outdoor unit must be installed properly.
Improper installation of cover or panel
may cause fire or electric shock due to
dust or water.
Cables between indoor and outdoor
units must be properly connected by
specified cables and make sure that
joints properly fixed
If installed at a place without enough
strength, the unit may fall and hurt people
Installation must be made according
to installation instructions, the special
cables should be used
Inefficient capacity of the cable or
Improper installation may cause fire,
electric shock, loose of parts fall and
hurt people or water leakage.
The grounding is necessary
in construction
The ground wire must not be connected to
gas pipe, water pipe, lightning rod, telephone
ground wire. Improper connection of ground
wire may cause electric shock
Must not be installed at a place where
inflammable gas is leaking
If inflammable gas accumulated around
the unit, explosion may happen
Electrical components must be installed
according to instructions, and must use
specific electrical power supply
Insufficient electrical power capacity
or improper installation may cause fire
or electric shock.
The units must be installed at a place
where it can hold certain weight
If installed at a place without enough
strength, the unit may fall and hurt people
The attached or specified installation
accessories should be used in
installation
Improper accessory may cause fire, electric shock
or Fall unit and hurt people as well as water leakage
Don't crass to power cables in the
installation of electrical components,
don't use extension wire or octopuses
like wiring
Improper grounding or insulation may
cause fire or electric shock
After installation, make sure there is
no leakage of refrigerant
If the until is installed in a humid
environment, a switch for prevention
of electricity leakage must be installed
Without leakage prevention switch,
electric shock may happen
Drain hose and pipe must be installed
according to installation instructions
Improper installation of drain hose or pipe
may damage the unit or home furniture
18
VI. Installation instructions
3.Installation of Unit:
3-1.How to select installing location:
3-1-1. How to select installing location for indoor unit
Air inlet/ air outlet should be far away from obstacles, ensuring that air flow must not be kept back;
Do not install the unit at a spot with direct sunshine;
Select a spot convenient for removal of condensed water and easy connection to outdoor unit;
The distance between the spot and TV set or acoustic equipment should be 1m at least;
Keep away from fluorescent lamps or incandescent lamps; (otherwise, it is possible that the wireless remote
controller cannot not be normally utilized to controlled)
Select a solid wall which can bear weight of machine body, free of increase of operating noises or vibration;
Maximum height difference between indoor unit and outdoor unit should be 5m.
3-1-2. How to select installing location for outdoor unit
The installing location can bear weight of machine body, free of strong vibration.
Select a spot with good ventilation, less dust, free of rainwater and direct sunshine
Select a spot from which the operating noise and exhausted hot air can not affect the neighbors;
There should be no obstacles around the outdoor unit, which keep back inlet air/outlet air for the unit;
Select a spot free of leakage of inflammable gases or erosive gases;
L1
L4
L2
L3
Model
5K/7K
09K
12K
18K
21K
24K
Dimension
Installation & Maintenance Manual
Unit: mm
L1
L2
368
600
600 368 278 235
780 500 280 250
780 500 280 250
850 500
850 500 310 290
278
310
L4
L3
235
290
3-2.How to fix the mounting plate
Find a structural member of a wall (e.g. column etc.), and fix the mounting plate onto it horizontally.
5K/7K/9K/12K series
bove 120mm
A
(Away from
the wall)
Note:
Tie the rope at central hole
Mounting plate
Plumb bob
1. To avoid microshock of mounting plate, the hole pointed at by solid arrow must be secured.
2. If expansion bolt is adopted, it is required to adopt slotted holes 11*20or 11*26 with interval of over 450mm
to fix the mounting plate
Above 30mm
Above 195
(Away from
the wall)
Align the rope to the symbol
Tie the rope at central hole
175mm
Above
(Away from
the wall)
18K ,21K ,24K series
Mounting plate
Plumb bob
Above 60mm
242mm
Above
(Away from
the wall)
Align the rope to the symbol
19
VI. Installation instructions
3-3.Drill holes on the wall
9K series 12K series
180mm
Installation & Maintenance Manual
180mm
Mounting plate
10
Align the measuring rule to str aight line
18
Center of a hole with
diameter of 65mm
Align the measuring rule to str aight line
18K,21K,24K series
82mm99mm
10
Center of a hole with
diameter of 65mm
Insert the measuring
Align the measuring rule to str aight line
Indoor unit
3-4.How to install indoor unit
Outlet the pipeline through the wall hole,
and hoist the unit onto the mounting plate.
Bottom surface of indoor unit
Hang the rib into the hole in mounting plate.
3-5.How to connect wires for indoor/ outdoor units
Indoor unit Section:
8
Center of a hole with
diameter of 65mm
Mounting plate
Mounting plate
10
Center of a hole with
diameter of 65mm
18
Wire connection
Open the return air grille;
1
Remove screw for fixing electrical box cover, open (or remove) the electrical box cover;
2
remove fixing screws of clamping plate, and remove the clamping plate;
3
Properly connect the connecting cables, and tightly clamp the connecting cable by the removed clamping plate.
See the Figure as below:
Fixing screw
Connecting cable
(three core)
5K/7K/9K/12K series
Reassemble the electrical box cover, and close the return air grille.
Electrical box cover
Connecting terminal board
Fixing screw
Clamping plate
Ensure to insert the core
wire completely.
Clamping plate
Connecting cable
(four core)
18K,21K,24K series
Connecting terminal board
Electrical cover
Ensure to insert the core
wire completely.
20
VI. Installation instructions
Installation & Maintenance Manual
Press plate
Power cord
Connecting cable
5K/7K/9K/12K BTU
Warning
1. It is required to adopt specified cable for wiring between indoor/outdoor units, ensuring that the connecting
terminals must be securely fixed, free of the direct influence of external forces. if it is improperly connected or
fixed, it is possible to cause a fire.
2. Indoor unit's cover of electrical box must be properly fixed. Otherwise, dust or water might cause a fire or
electrical shock.
3. The power cable for indoor unit of the air conditioner should be PVC-cased cord (cord 53# in IEC227) at least.
4. The power cable for outdoor unit of the air conditioner should be butadiene rubber cased cord
(cord 57# in IEC245) at least.
Power cord
Connecting cable
18K/21K/24K BTU
Press plate
21
VI. Installation instructions
outdoor unit:
Installation & Maintenance Manual
outdoor connection
terminal board
cable connecting
indoor and outdoor units
3-6. Arrangement of refrigerant pipe and drain hose of indoor unit
3-6-1. Precautions:
Drain hose must be located below the coolant pipeline;
Do not hunch up or bend the drain hoses;
Do not pull at the drain hose to carry out wrapping operation;
If drain hose must pass through indoors, it must be wrapped
with heat-insulating material available in the market;
Use felt tape to wrap up fitting pipe and drain hose, and place
heat-insulation cushion upon the wall that contacts the aforesaid
two.
3-6-2. Direction of fitting pipe :
As shown in the Figure, part 1 of the case should be cut off if
fitting pipe is led out from right side; part 2 of the case should be
cut off if fitting pipe is led out from right lower side, part 3 of the
case should be cut off if fitting pipe is led out from left side.
3-6-3. Recondition of drain hose:
Drain hose
Liquid pipe
Felt tape
Gas pipe
Heat-insulation
cushion
If fitting pipe is led out from right or right lower side, it is
required to condition the drain hose, for fear of water leakage.
Drain plug
Drain hose
22
Installation & Maintenance Manual
VI. Installation instructions
4. Completed connection of indoor and outdoor units and test run
4-1 flared joint
The flared joint is located on the indoor and outdoor sides.
Remove the valve cap of outdoor unit, and then connect the pipelines.
As shown in Figure below, coolant pipeline is used to connect indoor unit and
outdoor unit.
Connector
Indoor unit
Refrigerant pipeline
Model
5K/7K/9k
12k
18k
21k
24k
Liquid pipe
Gas pipe
Max length
of extended
fitting pipe (m)
10
15
15
15
15
Outdoor unit
Access door
Max Height
difference (m)
5
5
5
5
5
Max number
of bent pipes
10 spots
10 spots
10 spots
10 spots
10 spots
Outer diameter of fitting pipe:(mm)
Gas pipe
9.52
12.7
12.7
15.8
15.8
Refrigerant adjustment... If pipeline length is over 7m, auxiliary refrigerant (R22) is required.
(7m pipeline for outdoor unit is filled with refrigerant)
Pipeline length
Pipeline preparation
Maximum length 7m
Longer than 7m
Requiring no refrigerant replenishment
Requiring refrigerant
replenishment
50g/m
Liquid pipe
6.35
6.35
6.35
9.52
9.52
Fitting pipes of 3m or 4m are available.
Pipeline specifications listed in table below:
Pipeline
For liquid
Outer diameter
Mm
6.35 1/4
9.52 3/8
9.52 3/8
For gas
12.7 1/2
15.88 5/8
It is required to properly insulate the 2 pcs of refrigerant pipeline so as to avoid condensation.
Bending radius of refrigerant pipeline must be greater than 100mm.
Cautiously select the specified insulation thickness. Excessive thickness may disturb the cumulation
at back side of indoor unit while insufficient thickness may lead to condensed water dripping.
Inch
Insulation thickness
6mm
6mm
6mm
6mm
6mm
Precautions:
23
Insulating material
Specific gravity of insulating
plastic foam is 0.045
Installation & Maintenance Manual
VI. Installation instructions
4-2 Flared pipe processing
Defect in flared pipe processing will be a major cause of gas leak. Please
carry out flared pipe processing properly according to the following method:
1
Cut off tube
Use pipe cutting machine to cut off copper tubes correctly.
2
Deburring
Completely remove the burr on cut-off section of the pipe.
To prevent burr from dropping into the pipe, the cut off
opening of pipe line should be positioned downwards
during deburring operation
3
Assemble the nut
Remove the conical nut attached to indoor and outdoor unit, and
then fix them inside the pipes free of burr.
(After flared processing of pipe, it is impossible to fix them inside it.)
4
Flared pipe processing
Copper pipe
Burr
Good
90
Declined cutoff opening
Reamer-type pipe cutter
Conical nut
Poor
Burr
Copper pipe
Carry flaring process by the tools listed below.
Outer diameter
6.35mm
9.52mm
12.7mm
15.88mm
5
Check
Compare the flared shape to the right Figure.
If visible defect exists in flaring process, just
cut off the processed section, and flare it
again.
A( )mm
2.0--2.5
3.0--3.5
3.5--4.0
4.0--4.5
Tools for flaring process
Smooth periphery
Uniform peripheral length
24
Tongs
Smooth inner side free of scratch
Too much
Inclined
Conical nut
Flared surface
with scratch
Poor sample
Copper pipe
With cracks
York tongs
Uneven
Installation & Maintenance Manual
VI. Installation instructions
4-3 Pipeline connection
Pipeline connection for indoor unit
Connect liquid/gas fitting pipes to indoor unit.
Apply a layer of sealing oil on surface of pipe saddle (put it inside
installation attachments) .
Firstly align it to the center and connect it, and then manually screw down
the conical nut for 3-4 turns.
Refer to the following moment table; use 2 pcs of spanners to fasten the
pipe joints at side of indoor unit.
Pipeline diameter
6.35mm(1/4")
9.52mm(3/8")
12.7mm(1/2")
15.88mm(5/8")
To rq u e (N M)
13.7--17.6
34.3--41.2
49.0--56.4
73.0--78.0
Pipe connection of outdoor unit
As per the same method for indoor unit, connect the fitting pipe to pipe joint.
of shutoff valve (2-way and 3-way valves) on outdoor unit.
Use torque -adjustable spanner or wrench to fasten it at same moment as that for indoor unit.
4-4 air purge Leak test
Air purge procedures
Connect the coolant pipeline (liquid and gas pipelines)
between indoor unit and outdoor unit.
Remove the access door cover of shutoff valve aside the gas pipeline of outdoor unit. (The shutoff valve
reserved in factory-leaving state cannot function, because it is still completely sealed by a cap).
Connect the gauge manifold valve and vacuum pump to the access
door of shutoff valve aside the gas pipeline of outdoor unit.
Rotate the vacuum pump (vacuumize it for 15 minutes at least).
Use gauge manifold valve to check the vacuum degree,
and close the gauge manifold valve, stop the vacuum pump.
Lay it aside for one two minutes, and then check if the pointer of gauge manifold valve still points
to the original position. Check if the pressure is -0.1mega pascal (-76cm mercury column).
Close
Open
Allen wrench Shutoff valve
Gauge manifold valve
Connecting pipeline
25
Shutoff valve
Liquid pipeline
Allen wrench
Gas pipeline
Cap
Shutoff valve
Access door
Vacuum pump
VI. Installation instructions
Quickly remove gauge manifold valve from access door for shutoff valve.
Properly connect and evacuate the refrigerant pipeline, and fully open all shutoff
valves aside the gas and liquid pipeline. If it is not operated with fully opened shutoff
valves, performance of the unit may be degraded, resulting in troubles.
Installation & Maintenance Manual
Maximum pipeline
length of 7m,
requiring no aeration.
If pipeline length is
longer than 7m,
aerate it with amount of gas.
Screw down the access door cover to get the initial state.
And then screw down the cap.
Screwing-down torque
(N m) (Kgf cm)
Leak test
Access door cover
Valve rod cap of
shutoff valve
13.7 17.7
19.6 29.4
140 180
200 300
4-5 Insulation and bandage wrapping
Cover the fitting pipe sleeve by pipe cap;
All fitting pipes and valves of outdoor unit should be heat-insulated;
All fitting pipes from the fitting pipe entry of outdoor unit must be wrapped with pipeline bandage;
Fix the ends of pipeline bandage by tapes applied with adhesive;
if fitting pipe passes ceiling board, lavatory or other place with high temperature and humidity,
the thickness of heat-insulating material should be increased for fear of condensation.
4-6 Arrangement of drain pipeline
For easier drainage through drain pipeline, ensure that the drain pipeline should be
positioned in a declined mode (as shown in Figure 1).
Do not connect the drain pipeline in the same way as shown in Figure 2 - Figure 5.
Declined
(Figure 1)
Water leak
(Figure 2)
If the length of drain hose assembled on the indoor unit is too short for
operation, just connect the drain hose in the attachment box to it for
operation.
If the drain hose has to pass the indoor spaces, it must be wrapped with
heat-insulating material available in the market.
Upwards
Water leak
Drain retention
Air retention
inside pipeline
(Figure 3)
26
(Figure 4)
End of drain hose
dipping into water
Less than 50mm
above the floor
(Figure 5)
Drain hose
Hose (inner diameter
of 15cm) or hard PVC pipe
Air
Water leak
Seal it with putty
VI. Installation instructions
4-7 Wall hole sealing and pipeline fixing
.Seal the wall hole with putty;
.Use straining rope to fix the pipeline at appointed position.
Installation & Maintenance Manual
Cut off the surplus section
Fix it by
straining rope
Indoor unit
Masonry nail
Straining rope
4-8 Test run
Note:
1. Before test run, it is required to check once again if there is any incorrect wire connection, and check if any leak
occurs in the pipe joint (by soap water).
2. It is possible to start up the unit by pressing emergency operation switch. Once the emergency operation switch
is pressed, the unit will begin continuous test run in cooling mode for 30 minutes. Within the 30 minutes, the
preset temperature does not work; after the 30 minutes, the unit will begin emergency operation in cooling
mode at a certain preset temperature (24 ).
Test run procedures:
1. Press the emergency operation switch for the first time, the air
conditioner begins emergency cooling operation; press the switch for
the second time, the air conditioner stops all operations.
2. Press the ON/OFF button on the remote controller, and check if the
indoor unit gives out a sound toot ; if yes, it indicates that the
remote controller can function, and the emergency operation is
released. After that, press every button on the remote controller, and
check if operation modes of the unit vary respectively.
(Emergency operating mode of air conditioner can be displayed in the
operation indicator.)
Cooling
Shutdown
Mode
Power indicator
(On)
4-9 Explanations to the customers
In accordance with the operation instructions, show the customers relevant methods for temperature
adjustment, disassembling method for air filter, cleaning methods, installating and disassembling method
for remote controller, and precautions during operation.
Urge and demand the customers to read the operation instructions.
5. Displacing installation and maintenance after initial installation
5-1 How to fix the face plate
Before installation of front panel, please set vertical
vane at the position as shown on Figure 1.
Close the front panel and match the panel with the unit.
Gently press emergency switch on the front
panel and see if the emergency button is
properly matched with inside emergency switch
Fix screw and fix the front panel on the air-conditioner and
replace the screw cover.
Air guide
downward
slightly
Figure 1
27
Installation & Maintenance Manual
VI. Installation instructions
5-2 Disassembly of indoor unit
Release the bottom edge of indoor unit from the mounting plate.
Use Allen wrench
As shown in Figure below, use Allen wrench to pull
downward the bottom edge of indoor unit, and then pull
out the unit slight so as to release the bottom buckles;.
Insert the Allen
wrench, and hook the end.
Allen wrench (4cm)
In case the method in left column cannot be taken
If the method cannot be taken, just remove the face plate.
As shown in Figure below, insert the allen wrench into
the left and right square openings; and then push the
allen wrench upward so as to descend the indoor unit,
Square opening
Push
5-3 Refrigerant replenishment
If connecting pipe length is over 7m, refrigerant replenishment is required.
Refrigerant replenishing volume for cooling/heating unit are listed as follow: A = 15g/m * (L-7) .
(A in the formula indicates the refrigerant replenishing volume in g; L indicates connecting pipe length in m)
Pipe length (m)
Refrigerant replenishing
volume for unit(g)
Downward
Note: maximum length of connecting pipe for models 25 Series must not be longer than 10m, and the maximum
length of connecting pipe for models 35/50/70 Series must not be longer than 15m.
Detailed operation steps are listed as follow:
Align and connect the gas bomb onto access door of gas valve;
Carry out the air purge for pipeline (or hose) from gas bomb of refrigerant;
Replenish refrigerant of specified volume for normal operation of the air conditioner.
Indoor unit
Operation valve of
gas bomb for coolant
Charging bottle
of coolant
Connecting pipe
Liquid pipe
Gas pipe
Charging hose
Shutoff valve
Outdoor unit
Access door
Note:
1. During charing operation, do not turn over the gas
bomb for refrigerant replenishing for fear of any
Spring balance
(R-22 liquid ) charging
problem;
2. To keep the high pressure in the gas bomb, please
heat it by warm water (40 ) in cold seasons. Do not
put it on fire, or heat it by hot steam.
28
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