INSTALLATION&OPERATION INSTRUCTION MANUAL
FOR
SA-GU03ENG-1
DUCT TYPE AIR-CONDITIONING UNIT
Thank you for choosing our company products!
Air conditioning facilities are valuable products. In order to protect your
legitimate rights and interests, please make sure that the installations are done
by professional technicians. This manual is a general-purpose version for the
conditioning systems manufactured by our CO., the one that you have chosen
might be a little different in appearance from the ones described in the manual .
But these differences will not have any impacts upon your operation and use of
the system.
Please read the manual carefully before you operate the system and check to
see if the model is identical to the one you have purchased, keep the manual
properly in case you might refer to it in the future.
CONTENTS
1 NOTICES TO USERS ...................................................................................1
2 PARTS NAME AND FUNCTION..................................................................3
3 INTRODUCTION OF CONTROLLER .........................................................5
4 INSTALLATION OF THE UNIT ....................................................................9
5 ELECTRIC WIRING .......................................................................................29
1 NOTICES TO USERS
Safety Notices
"Important Safety Information"affords very important points about how to
operate the unit safely.To prevent injury to the user or other people and property
damage, the following instructions must be followed. Incorrect operation due to
ignoring of instructions may cause harm or damage.
The safety precautions listed here are divided into two categories. In either
case, important safety information is listed which must be read carefully.
!
WARNING
Failure to observe a warning may result in serious injury, grave
accidents even death.
!
CAUTION
Failure to observe a caution may lead to injury or damage to the
equipment.
Please read the mark of the unit carefully .If you detect any abnormality, such
as abnormal noise, smell, fog, temperature rise, creepage, fire and so on;
Please turn off the power supply immediately and call your dealer or local
service
center for instructions. Do not repair the unit by yourself. If necessary,
call the local fire department or Emergency department for help.
!
WARNING
■ This product is extensively applied in offices,restaurants, hotels,residence
and so on.
■ Be sure only trained and qualified service personnel to install, repair or service
the equipment. Improper installation, repair, and maintenance may result in
electric shocks, short-circuit, leaks, fire or other damage to the equipment.
■ Install at a strong and firm location which is able to withstand the set' s weight.
If the strength is not enough or installation is not properly done, the set will
drop to cause injury.
■ While following the instructions in this installation manual, install drain piping
in order to ensure proper drainage and insulate piping in order to prevent
condensation. Improper drain piping may result in water leakage and property
damage.
1
■ Never use or stockpile some flammable objects such as hair spray, alcohol
or paint near the unit. It may cause a fire.
■ Cut off the power of the air conditioner in case of accidents, such as
smelling something burning.
■ Keep the air-conditioning room with good ventilation to avoid of oxygen
deficiency.
■ Do not insert fingers, rods or other objects into the air inlet or outlet.
When the fan is rotating at high speed, it will cause injury.
■ Never try to plug in or pull out the power plug for starting or shutting the
air conditioner.
■ Pay attention to the mounting support in case of damage for a long usage
■ Ask your dealer or qualified service personnel for improvement, repair, and
maintenance. Incomplete improvement, repair, and maintenance may result in
a water leakage, electric shock, and fire.
!
CAUTION
■ Before installing, check whether the power is safe and keep it accordance
with its nameplate;
■ Before operating, make sure that all connections of cables, drain pipes
and other pipes are in good condition in case of water leakage, refrigerant
leakage, electric shocks, fires.
■ Be sure the air conditioner is grounded. In order to avoid electric shock, make
sure that the unit is grounded and that the earth wire is not connected to gas or
water pipe, lightning conductor or telephone earth wire.
■ Keep the air conditioner running for 5 minutes at least before shutdown,
otherwise,it will do bad to the oil return of the compressor.
■ The child is not allowable to operate the air conditioner.
■ Do not operate the air conditioner with a wet hand.
An electric shock may happen.
■ Cut off the power of the air conditioner prior to cleaning the unit or
replacing the air strainer;
■ Cut off the power of the air conditioner before the unit being idle for a
long time.
■ Do not step on the outdoor unit or avoid placing any object on it.
Falling or tumbling may result in injury.
■ Please electrify the unit and then carry out electric leakage test after the
installation of electric devices;
2
2 PARTS NAME AND FUNCTION
■ Indoor unit
① Air outlet
② Air inlet
③ Drain pipe
⑤ Gas pipe
⑥ Electric control cabinet
3
④Liquid pipe
⑦ Hook
■ Outdoor unit
Air inlet
Air inlet
Air outlet
Air outlet
Air outlet
Air outlet
Air inlet
4
Air outlet
Air inlet
!
CAUTION
■ All the pictures in this manual are for explanation purpose only. They may be
slightly different from the air conditioner you purchased(depend on model).
The actual shape shall prevail.
■ This air conditioner just consists of indoor unit and outdoor unit , other
than connecting pipes and ducts .
5
3 INTRODUCTION OF CONTROLLER
3 . 1 Instruction for Remote controller and Indicator
Light Board( optional)
Indicator Light Board ( It should be used with the remote controller )
Defrosting-Preheating
indicator light
Timer indicator light
Running indicator light
RUN
DEFROST TIMER PROTECTION
When the unit breaks
down, the protection
light will be on.
Emergency key
Receiving window of the
remote control signal
EMERGENCY
When the remote controller
is out of order, you can press
down this key to carry out the
emergency operation.
The model of the following remote controller is Jingling common remote
controller ( It can work with the wire controller or the indicator light board ) .
TURBO key, LAMP key, AIR FLOW key and CLEAN key is applicable for
special latest developed new models instead of normal ones.
AUTO
COOL
DRY
HEAT
FAN
MODE key
It is used for selecting different modes,
such as automatic, cooling,
dehumidifying, heating and ventilating.
SLEEP
TURBO
LAMP
F
C
CLEAN
ON
OFF
HOLD
TEMP
MODE
Set TEMP key
Press▼▲ will decrease or increase
the set temperature and the rang is :
16℃~32℃
ON/ OFF
SWING key
It is used for selecting swing and
stopping switching circularly.
ON/OFF key
It is used for starting or stopping AC.
FAN SPEED key
It is used for selecting wind speeds (
natural wind, high wind, middle wind
and low wind)
TIMER key
It is used for setting timing ON/OFF
and regards hour as its union.
FAN SPEED
SWI NG
AI R FL OW
TI MER
HOLD
SLE EP
TURBO
LAMP
CLEA N
AIR FLOW key It is used for selecting
swing , stable wind, natural wind and
circulating wind.
SLEEP key
It is used for selecting sleep mode
and canceling sleep mode.
HOLD key
It is used for selecting hold mode and
canceling hold mode.
TURBO key
T h e k e y d o e s n’ t i n d i c a t e w i n d
speed and setting sleep mode or
changing modes will cancel TURBO
operation.
CLEAN key
It is used for selecting purification or
canceling purification.
LAMP key: It is used for selecting
lamp being on or being off.
6
3.1.1 Introduction of Functional Key
■ ON/OFF key: Press the key and the remote control will switch circularly in the
order : ON→OFF→ON.
When it is powered on at first from off state to on state, the default setting of
work condition is ( The set temperature is 25℃ and the mode , wind speed,
swing and air door are all automatic and there is no LAMP, no TURBO, no
CLEAN, no SLEEP, no TIMER and no HOLD function ). When it is not
powered on firstly from OFF state, the work condition is as the same as the
state before stopping. It will cancel LAMP, CLEAN, SLEEP, TURBO and TIME
mode.
■ MODE key: Press the key to switch modes in the order :
AUTO→COOL→DRY→HEAT→FAN→AUTO
■ ▼ key: In DRY mode or AUTO mode, pressing ▼ key cannot change the
temperature. In other mode, press the key once and the temperature will
decrease 1℃ in the order : 32℃ →31℃ → … →17℃ →16℃ .
■ ▼key:In DRY mode and AUTO mode, pressing ▼ key cannot change the
temperature. In other mode, press the key once and the temperature will
increase 1℃ in the order: 16℃ →17℃ → … →31℃ →32℃ .
■ FAN SPEED key: The default wind speed is in the automatic wind mode when
starting firstly. The remote control won’t react by pressing the key because
the wind speed can’t be adjusted and in low speed in dehumidifying mode. In
other mode, press the key to switch modes in the order : automatic wind→ high
speed →middle speed→ low speed →automatic wind.
■ SWING key : In dehumidifying mode, the swing mode is in the stable wind
mode without change. In other mode, press the key to switch modes in the
order: swing →stable wind→natural wind →swing.
■ AIR FLOW key : The default air flow is in the swing mode when starting firstly
and press the key to switch modes in the order: SWING →STOP →SWING.
■ TIMER key : The default mode is in no timing state, press the key to set timing
time . The switch order is: 1H→2H→ … →24H→cancel→1H… . Press the key
to set timing starting in the OFF state and set timing stopping in the ON state.
After setting timing function, the time keeps decreasing per hour until the
time decreasing to the timing on or timing off and the timing display will be
cancelled at the same time . Pressing MODE key can’t cancel timing in
timing mode which will set out timing time by pressing other key.
■ HOLD key: The default state is in no HOLD key state, press the key to select
modes in order: HOLD key →cancel HOLD key→ HOLD key ; In HOLD key
mode, all keys except HOLD key of the remote control can’t work .
( NOTE: In HOLD key mode, the remote and operation panel of the unit both
will be locked automatically by pressing the key and press the key again , they
will be unlocked. As for the split unit , it only hold the control other than
EMERGENCY key and the panel will make a reaction.)
■ SLEEP key : Press the key to switch modes in the order: SLEEP→ cancel
SLEEP→ SLEEP. The sleeping function won’t be cancelled for changing
modes. Press the key to set sleep mode and the wind speed will automatically
7
be switched to low speed and it can adjust the wind speed by pressing the
FAN SPEED key (except dehumidifying mode).
■ TURBO key: The default state for the control is no turbo and the key don’t
work in the AUTOMATIC mode, DRY mode and FAN mode ( It will not display
any contents and not send out any codes). The control, however, will switch
between on and off by pressing the key in other mode. The wind speed isn’t
indicated in turbo mode and it will be cancelled for changing modes and
setting sleep mode.
■ LAMP key : The default state is in no LAMP key state, press the key to select
modes in order : LAMP key →cancel LAMP key→ LAMP key; In LAMP key
mode, pressing MODE key can’t cancel the show of LAMP key.
■ CLEAN key : The default state is in no purification state, press the key to select
modes in order : CLEAN →cancel CLEAN→ CLEAN; In CLEAN mode,
pressing CLEAN key can’t cancel CLEAN function. Press the key when
the remote control is closed, the control will switch modes in the order :
CLEAN →cancel CLEAN→ CLEAN; When you stop the unit and turn on the
purification switch, except the wind, the stable swing and air door swing speed
aren’t adjusted.
3 . 1 . 2 Notices for operating the remote control
① Don’t place the control near high heat source such as Electric blanket, warm
furnace and so on.
② Don’t expose the control in sun.
③ Take care for it and prevent it from damage for falling down.
④ Don’t place any rolling obstacle between the signal acceptor of AC and the
control, otherwise it may affect sending or incepting signals.
⑤ Don’t spray water or other liquid on the control.
⑥ Don’t place any clog on the control.
NOTE: When the remote control is out of work, please replace the battery and
operated it once ; If the failure hasn’t be cancelled, please take urgent operation
methods to restart the AC.
3.1.3 Replace batteries of the remote control
If the following condition appears, which mean that the batteries have been
used up, please take out of the old batteries and change for new ones.
① After sending the signal, the air conditioner can not send receiving sound.
② The display screen is not clear
The operating steps are as follows:
■ Remove the back cover, take out of
the old batteries.
■ Replace batteries, please notice the
poles “+” and “-” on the batteries.
■ Close the back cover.
Take down the back cover
8
!
NOTE
1. New and old batteries can not be used together.
2. If the remote controller will not be idle for long
time, please take out of the batteries.
3. The service life of the dry batteries, accorded
with the requirements of the standard of JIS or
IEC, is 6 to 12 months under common condition ;
Overrunning the service time or using dry batteries ,
which are not accorded with the above mentioned
specifications, the liquid seeping phenomenon may
be occur on the battery and the remote control
won’t work.
Pay attention to poles of “+”and “-”
9
4 INSTALLATION OF THE UNIT
4.1 Install Indoor unit
4.1.1 Outline view and dimensions of Indoor unit
■ Outline view and dimension of Indoor units( applicable for Low- static
pressure type(TA) series)
Air outlet
Air inlet
Fig 1
unit :mm
Table 1:
Items
Model(kBtu/h)
A
B
C
D
E
F
G
9
672
261
642
926
560
112
181
12
672
261
642
926
560
112
181
18
951
261
921
1204
560
112
181
10
■ Outline view and dimension of Indoor units( applicable for Mid- static
pressure type(TB) series)
Air inlet rear
Air outlet
Air inlet down
Fig 2
unit :mm
Table 2:
Items
A
B
24
1190
515
36,48,60
1425
515
Model(kBtu/h)
C
D
E
F
G
H
I
920
1100
643
920
207
207
260
1155 1337
643
1155
207
207
260
■ Outline view and dimension of Indoor units( applicable for High- static
pressure type(TH) 48- 60 series)
Fig 3
Table 3:
11
unit :mm
■ Outline view and dimension of Indoor units( applicable for High- static
pressure type(TH) 96 series)
Fig 4
unit :mm
Table 4:
Items
Model(kBtu/h)
96
A
B
1440
811
C
D
448 1162
E
F
G
H
I
J
K
784
300
150
900
537
272
1174
4.1.2 Installation dimensions of Indoor unit
Fig 5
12
4.1.3 Selection of the installation site
■ Make sure top hangers can bear the weight of the unit;
■ Make sure that the drain pipe can drain the water conveniently;
■ Make sure that the air inlet and the outlet of the indoor unit should not be
blocked, with a good ventilation.
■ There is enough space for maintenance and installation as listed in Fig 4;
■ Keep the unit off heat source, inflammable gas or smog.
■ The unit is ceiling type or concealed in- the - ceiling type;
■ Make sure that indoor unit, outdoor unit, power wires and connecting
wires are 1 meter at least away from TV or radio in case of noise or
image inteference. Depending on the radio waves, a distance of 1 meter may
not be sufficient enough to eliminate the noise.
4.1.4 Install the indoor unit
■ Insert M10 Expansion bolts into mounting holes and then drive iron nails
into bolts, see Fig 6. As for the hole intervals, please refer to Fig 4.
Fig 6
■ Fix hooks in the indoor unit( refer to Fig 7)
Indoor unit
Hoisting screw
Hook
Fig 7
13
■ Install the indoor unit on the ceiling( refer to Fig 8)
Hoisting screw
Hook
Nut
Nut
Fig 8
!
CAUTION
■ Before installation, please finish the installation of all ducts ( refrigerant duct,
drainage duct)and the connection of the all power lines(the power lines of the
outdoor unit), once the installation has finished, the ducts and the power lines
can be connected with the indoor units immediately.
■ In order to keep the ceiling level and from vibrating , please reinforce the
ceiling before digging an opening in the ceiling .
■ If the ceiling is not strong enough , please install a angle iron bracket
and lay the unit on the bracket ;
4.2 Install Outdoor unit
4.2.1 Outline view and dimensions of Outdoor unit
■ Outline view and dimension of Outdoor units( Applicable for 09- 24
series)
14
Fig 9
Table 5:
15
unit :mm
■ Outline view and dimension of Outdoor units( Applicable for 36- 48
series)
Fig 10
unit :mm
Table 6:
Items
Model(kBtu/h)
36,48
A
B
C
D
E
F
1050
400
995
700
380
347
16
■ Outline view and dimension of Outdoor units( Applicable for 4 8- 6 0
series)
Fig 11
Table 7:
Items
Model(kBtu/h)
48,60
A
911
B
400
17
C
1330
unit :mm
D
E
585
360
C
■ Outline view and dimension of Outdoor units( Applicable for 96
series)
E
B
D
A
Fig 12
Items
Model( kBtu/h)
96
Table 8:
A
B
1470
854
18
C
975
unit :mm
D
E
1170
807
C
■ Outline view and dimension of Outdoor units( Applicable for 96
series)
B
A
Items
Model(kBtu/h)
96
A
970
19
B
765
C
162
4.2.2 Installation dimensions of Outdoor unit
Fig 13
Fig 14
The outdoor unit should be installed in the location that meets the following
requirements:
■ There is enough room for installation and maintenance and make sure the
exhaust does not flow back;
■ The place where there is a good ventilation so that the unit can suck or
drain out sufficient airflow. Besides, make sure that air outlet and air inlet
are not impeded, otherwise, please remove the obstacles
■ The support is flat and horizontal and can stand the weight of the outdoor unit.
and the installation site has sound proofing and damping function so that
the neighborhood will not feel uncomfortable with the noise or expelled air.
■ In case of exposure to direct sunlight, you' d better install an awning.
■ Make sure that the installation site can drain out the rain and condensate
water;
■ Select the position where it will not be subject to snow drifts, rubbish or oil
smog. If unavoidable, please cover it with a shelter.
■ Locate the outdoor unit in the place not facing the strong wind directly.
4.3 Hoisting and fixing of the equipment
Each set of air - conditioning unit has been strictly inspected and tested before
delivery at the factory so as to guarantee the quality and performances of the unit .
Therefore , much care shall be taken during the installation of the unit to avoid
of damage to the control system and the pipline.
The installation of the indoor units or the outdoor units must be taken care the
different of the left side and the right side . In the event that indoor units or
outdoor units are too big to be moved due to its large dimensions or the limitation
of small space , hoisting installation may be considered.
■ General requirements for hoisting are as follows:
1. The gradient of the outdoor unit shall not exceed 20° ;
2. The damage to the units shall be avoided by putting soft materials, such as
20
Cloth, between the rope and the unit during hoisting;
3. Take care when handing and hoisting ,the force in each point of hoisting
must be uniform.
■ The following methods in hoisting are for your reference:
1. Hoisting by hand, hoisting by forklift;
2. Putting round logs (or pipes) under the unit for movement by worker with hands.
■ Fixing up the unit
The following work must be done after hoisting is completed:
1. After hoisting the unit on the base, please adjust the unit as level as
possible with the gradient error no more than 0.1%.
2. Fixing up the unit with the force on each fixing point uniform when the unit
is in a proper level .
4.4 Connect and install refrigerant pipes
4.4.1 Inspection of pipes:
The inspection of pipes must be carried out accordance with the following
requirements before connection of the pipes.
■ Keep the pipes inside clean;
■ The flares in both ends and the nuts must be complete.
4.4.2 Connection of pipes
Connect refrigerant pipes of indoor units as quickly as possible. For field
installation, the time for connecting two pipes shall not exceed 5 minutes.
■ When connecting flared connectors , the two pipes must be aligned with the
same center. Then put on the nut and revolve it in and then tighten it with
two spanners ,see Fig 15.
Note:
Two spanners must be used: One is normal
Fixing
spanner, the
other
is torque spanner.
Fig 15
When connecting the copper pipes, please adjust the torque spanner according
to the following torque parameters in Table 9
21
before operation.
Table 9
Tiorque force (kgf·m)
Pipe Diameter φ(mm)
6.35
1.4~1.7
9.52
1.4~1.7
12.7
4.8~6.2
15.88
4.8~6.2
19.05
6.9~9.9
■ Getting through the wall:
When getting pipes of the outdoor and indoor units through the wall,the sleeve
must be used in order to protect the pipe and cables shown as Fig 16:
Outdoor unit
Indoor unit
Wall hole
Gradient
2-5
Cut the sleeve short according
to the thickness of the wall
Sleeve for pipe passing
through wall
(Cutout drawing of wall hole)
Fig 16
■ Pressure test, vacuumize and leakage check for connection pipes and indoor
pipeline:
After installing the units and connection ducts , Using R22 keep filling
the connection duct and the pipeline of the indoor units with nitrogen gas until
the pressure in the duct reach 2. 4- 3.0MPa (absolute pressure), Using R410A
keep the pressure in the duct reach 3. 6- 4.0MPa; Maintain this pressure for
about 24 hours with the value change no less than 0.03Mpa. Meanwhile, the
leak test should be carried out to each joint and weld points by using soap bubble ,
if there is no leak point, please discharge the nitrogen gas until the pressure
reduces to130Pa (absolute pressure), and maintain this pressure value for about
24hours with the value change no less than 20pa. At last, open the valve of the
main machine to start the commission. If the refrigerant pipe is longer than the
stated one,please charge more refrigerant
22
according to the following
experienced formula:
R 1 = L1×0.030kg/m+ L2×0.065kg/ m+ L3×0.115kg/ m+ L4×0.190 kg/ m+
L5×0.290kg/m+ L6×0.380kg/ m+ L7×0.580kg/ m+L8×0.760kg/ m ( R22 )
R 2 = L1×0.023kg/m+ L2×0.060kg/ m+ L3×0.120kg/ m+ L4×0.180kg/ m+
L5×0.270kg/m+L6×0.380kg/ m+ L7×0.520kg/ m+L8×0.680kg/ m ( R410A )
Remarks:
R-- Total charging amount of refrigerant;
L1–-Total length of φ6. 4 Liquid pipe
L2–-Total length of φ9. 5 Liquid pipe
L3–-Total length of φ12. 7 Liquid pipe
L4–-Total length of φ16. 9 Liquid pipe
L5–-Total length of φ19. 1 Liquid pipe
L6–-Total length of φ22. 2 Liquid pipe
L7–-Total length of φ25. 4 Liquid pipe
L8–-Total length of φ28. 6 Liquid pipe
!
CAUTION
Please vacuumize its pipeline with a vacuum pump prior to installation,
for the refrigerant in the pipeline of the outdoor unit is not emptied
before delivery.
■ Heat Insulation:
When everything is normal after leakage inspection and pressure testing,
carry out heat insulation operation accordance with the requirements as below:
① The insulated material must be wrapped tightly without any cracks ;
② The thickness of the insulated material is no less 8 mm .
③ After wrapping with insulated material, please carry on rainproof and
dampproof treatment for the surface, such as wrap it with some bands.
④ Condensation on the surface of the copper pipes is not allowed during
cooling operation.
4.5 Dispose tubing
Because of the different installation positions of the air-conditioners, the
accessory pipe for the piping is varied in length. The longer the pipe is, the
more the refrigerant is needed, therefore, please select the proper pipe as
short as possible according to Table 10
4.5.1 The most working distance of the piping:
23
Table 10
Rated refrigeration
(KBtu/h)
<24
24~60
≥96
Max.length (m)
15
20
50
Max . Height (m)
8
10
20
10
10
10
Value
Max . number
of bends(piece)
!
CAUTION
Under the conditions to guarantee 80% cooling capacity , the parameters
above mentioned are obtained considering the loss of refrigeration and oil
return.
4.5.2 Allocate oil loops and non- return bends
When the difference of heights between outdoor unit and indoor unit is great ,
allocate some loops in the pipeline for easy oil return. For actual operation ,
the typical installation methods may be used as shown in Fig 17 :
The case of the outdoor located
higher than the indoor unit
The case of the indoor located
higher than the outdoor unit
Outdoor unit
Non- return bend
Non-return bend
Indoor unit
Gas pipe
Oil loop
Gas pipe
Oil loop
Liquid pipe
Liquid pipe
Indoor unit
Outdoor unit
Fig 17
!
CAUTION
● The radius of oil loops shall be as small as possible and one is allocated
every 5 meters as shown in the above figures.
● When the height difference is more than 5 meters between the indoor
unit and the outdoor unit , some oil loops or non- return bends need to
be installed in the pipeline system.
● The figures above are just for the multi- connecting unit with one
indoor unit, it is the same with ones with several indoor units.
24
4.6 Install condensate pipes
As for the condensate pipe of indoor unit of cental air-conditioning, the following
points shall be considered :
①The large drainage amount of the condensate ;
②The loss of refrigeration capacity;
③ For built-in types,it is not convenient to maintain the unit and the leakage
might occur at this place.
4.6.1 Select the material of condensate pipes
The materials of condensation water pipe may be U-PVC pipe and Zinc-plated
pipe. Considering the problems of sanitary and rusting, the U-PVC pipe is
recommended.
4.6.2 Requirement of installation:
■ The water outlet outside the house must have water seal which shall be fixed.
■ The gradient of the drainage pipe is no less than 1% .
■ The indoor part of the condensate pipe shall be sleeved with insulating pipe or
wrapped with thermal insulating asbestos.
■ After the installation of condensate pipes, leakage test must be carried out
by pouring some water to confirm no leakage in any connecting point and the
drainage is smooth . For the installation, please see Fig 18 :
Heat insulation
treatment
h
Duct unit
Condensate pipe
water seal
h:1cm/100Pa
Ground
Fig 18
4.7 Installation and heat insulation of air pipes
4.7.1 Install fresh air pipes
The inlet of new air pipe shall be located at the clean place. The air inlet of
outdoor units shall be installed with shutter and filter against rain.
It is recommended to install a flow adjuster valve at the section of fresh air
pipes and keep the fresh air volume is 10~15% of total air volume, see
Fig 19
25
Air adjuster
Supply air
Fresh air
Return air
Fig 19
4.7.2 Install blast tubes
The rectangular blast tubes can be connected directly with the outlet of indoor
unit and lead to the air diffuser with the total length less than 6 m.
The flow speed at each outlet of the air diffuser shall be basically uniform
to meet the requirement of air-conditioning in the room as shown in Fig 20:
Rivet hole
Fig 20
4.7.3 Install return air tubes
Connecting one end of return air tubes with rivets to air inlet of indoor
unit, the other end is connected to indoor air inlet . A short hose of fireproofing
canvas is fold up as the coupling tube penetrated through with 8# Iron wire so
that the length of the coupling tube can be adjusted freely according to the
height of the ceiling , as shown in Fig 21:
26
4
3
2
6
1
5
1--shutter for return air
2--air pipe made of fireproofing canvas
3--pipe for return air flow
4--indoor unit
5--wood screw
6--rivet
Fig 21
4.7.4 Heat-insulation for air pipes
Both blast tubes and return air tubes should be wrapped with PE or Glass
wool insulated materials .In case that glass wool is used, clean the surface of
air tubes at first, and then stick PE with matched glue onto tubes. In case that
glass wool is used ,affix the glass wool onto tubes with rubber nails and then
wrap with a layer of tinfoil and fix them with rubber nails. At last, seal the
connecting joints tightly with tinfoil adhesive tapes as shown in Fig 22:
air tube
insulating layer
steel washer
20
30
the same as thickness of 20
120
insulation layer
1.0
mixed paint
diagram of fastening point and
fastening clips
glass screen
pitch mortar
black sheet
fastening point
Thermal insulating layer
red lead paint
air tube
flange
Insulation by means of wrapping the
rectangular air tube with plate material
Fig 22
27
!
CAUTION
● Paste density of rubber nails are as Table 11:
● Tips for wrapping insulation material: The surface of insulation
material is not dewing during cooling operation.
Table 11
On the side of air pipe or under it
On the top side of air pipe
12 pcs/ m 2
5 pcs/ m 2
4.7.5 Others
It is recommended that the distance between the wall and the edge of return air
tube is more than 150 mm. The following figure is the diagram of hoisting of air
duct unit :
12
10
11
Heat lnsulation
treatment
Fresh air inlet
h
condenser pipe
gradinet>1%
5
water seal
3
4
return air inlet
2
Blast inlet
1
6
Blast inlet
7
8
9
h:1cm/100Pa
1——hook
2— —return air tube
4——return air shutter 5— —drainage pipe
7——blast tube
10——fresh air tube
8— —air diffuser
3— —air pipe made of canvas
6— —couping tube
9— —muffler
11— —rain- proof shutter
12 — —air adjuster
Fig 23
!
CAUTION
Return air tube must be installed in order to garatee the operation
efficiency of the unit.
28
4.8 Plenum chamber
4.8.1 Location and function of Plenum chamber
In the air outlet of the unit, the plenum chamber should be allocated and
affixed with sound absorbing material, which not only make the air flow stable
but also effectively reduce the fan noise result from abrupt change of plenum
chamber sectional area and sound- absorbing function of the inner surface.
(a)
(b)
(b) sound- absorbing box working as
( a ) sound-absorbing box installed
branch plenum chamber
at outlet of the unit
Fig 24
Plenum chamber application
4.8.2 Install Plenum chamber
■ Regulations of Plenum chamber
a. If the air outlet static pressure is higher than 30Pa, a plenum chamber
must be allocated in the air tube;
b. The plenum chamber shall be located on the section with smooth air flow in
the piping system. When the flow speed in the air pipe is slower than 8m/s ,
the plenum chamber shall be placed near outlet of the main air pipe of the
fan; When it is faster than 8m/s , plenum chamber shall be installed
separately on the branch pipes.
c. The plenum chambers are not suitable to be installed in the air-conditioning
rooms , nor out of the rooms because the noise from outdoors may get through
the pipes at the rear of muffler. And in this case , the insulation capacity of
sound of the static pressure box shall be validated .
d. The speed of air flow through the plenum chamber shall not exceed the
following data:
Resistance plenum chamber: 5-10m/s (4-6m/s for high requirement case)
Resonant plenum chamber: 5m/s
Sound- absorbing elbow: 6-8 m/s
29
e. The plenum chamber is mainly used for reducing the aerodynamic noise.
As for the noise generated by the ventilator, some measures for shock proof
shall be executed.
■ Installation requirement of the plenum chamber
a. The plenum chamber should be installed in the proper place against
moisture or damage;
b. Keep the punching plate clean without corrosion and holes not blocked;
c. The supports for plenum chamber and sound- absorbing elbow shall be
located separately.
d. The fixing screws for plenum chambers are distributed equably and the
joints are even and firm.
e. Make sure glass fiber cloth on the outside surface of sound- absorbing
baffle is even and no scratch and rusting.
4.9 Sound-through preventing
When the air flow from one pipe is sent to more than one rooms, the sound in
one room may spread to the other rooms. In order to avoid this problem, the
schemes from (a) to (e) in Fig 25may be carried out:
a. Increase the distance between the air outlets of the two rooms;
b . Affix the sound absorption materials;
c . Adding elbow to branch air outlet in room B;
d. Air supply is sent by two pipe systems;
Sound A
Room A
Sound B
Room B
(a)
Room A
Room B
(d)
Room A
Room B
(b)
Room A
Sound absorption saterial
Room B
(e)
Room A
Room B
(c)
Fig 25
!
CAUTION
After installation of the unit, make sure to call the after-sale personnel
of our company for debugging,or the aftereffect will be charged with the
user or installation people.
30
5 ELECTRIC WIRING
5. 1 Connect wires to amphenol connectors
!
CAUTION
■ Make sure that the power specification is of accordance with one listed
on the nameplate;
■ Make sure that the capacity of power supply is proper and the sectioncross-area of room wires is more than 2. 5mm 2;
■ Wiring construction must be carried out by professional;
■ As for fixed lines, the leakage protective switch and air switch should be
allocated and make sure that the distance between electrode tips is more
than 3 mm;
■ Solid cable wiring:
a. Strip off the insulating material with wire stripper about 25 mm at the
end of the solid cable;
b. Take down screws of the air- conditioner terminal;
c. Make the end of solid cable into a ring with size as large as screws
with the clamp;
d. Get screws through the ring and then fix it on the terminal;
■ Stranded wire wiring:
a. Strip off the insulating material with wire stripper about 10 mm at the
end of the stranded wire;
b. Then put the corresponding number tubes on the stripped wires( Pay
attention to the terminal number of indoor unit and outdoor unit )
c. Insert the stranded wire into connector with size as large as screws
with the clamp;
d. Take down screws of the air- conditioner terminal;
e. Get screws through the connector of the stranded wire and then fix it
on the terminal;
NOTE: Please connect power wires and connecting wires to corresponding
connectors.
!
WARNING
If supply cords and signal wires are broken, please replace them with
special cords.
■ Prior to wiring,affirm voltages of all parts listed on the nameplate and
then carry out the wiring construction according to Electric wiring diagram;
■ The air-conditioner should apply special power supply, leakage protective
switch and air switch in case of overload trouble.
■ In case of electric shock, get the air conditioner grounded unfailingly;
■ All wires should apply with clamping connectors or solid cable. If stranded
wires is connected to terminal, it may lead to fires.
31
■ In case of air conditioner breakdown or damage, the wiring contruction
will be firmly conformed to the electric wiring diagram;
■ Never get the cables in touch with refrigerant pipe, compressor, fan or
other operating parts;
Not remove wires of the air conditioner, or it may lead to damage or
breakdown and the manufacturer will not take responsibility for the aftermath.
5. 2 Power wires connection
5.2.1 Connect power wires to outdoor units
■ Take down the front end board or the large handle;
■ Connect power wires to L connector and N connector( or L1, L2, L3 and N
connector) and grounding screws;
■ Fix power wires with cable clip.
5.2.2 Connect power wires to indoor units
■ Take down the electric control box of indoor units;
■ Connect power wires to L connector and N connector( or L1, L2, L3 and N
connector) and grounding screws;
■ Fix power wires with cable clip.
5. 3 Signal wires connection of wire controller
■ Take down the electric control box of indoor units;
■ Get the signal wires through the rubber ring;
■ Insert the signal wires into five- needlbar on the electric control panel of
indoor units.
5. 4 Signal connection between indoor and outdoor unit
■ Units of communication cables, must use 485 communications dedicated
shielded twisted-pair cable ;
■ Signal connection between indoor and outdoor units, according to the signal
terminal station logo connection
!
CAUTION
In case of Electromagnetic interference( EMI) ,pay attention to the following
wiring operation;
■ Separate signal wires from power wires and connecting wires of indoor
units and outdoor units;
■ When the air conditioner is installed in the place where there is EMI, take
shielded wires and twisted pair as signal wires.
32
5. 4 Power wiring diagram
There are many kinds of power wiring diagram for different user powers
and models, make sure the section- cross area of wire that users purchased
is not less than those specifications list in the following figures:
Fig 1
Fig 2
Applicable for 9K~18K cooling only type
Applicable for 9K~18K heatpump type
Fig 4
Fig 3
Applicable for 24K, 36K single-phase
cooling and heatpump type
Applicable for 24K, 36K, 48K, 60K ,96k
three-phase cooling and heatpump type
33
Fig 5
Fig 6
Applicable for 90K0 cooling only type
Applicable for 90K heatpump type
NOTE:
1. The signal terminal block includes five types: 3 terminals, 4 terminals,
5, 6 and 7 terminals. Therefore, please connect the units according to the
actual ones so that indoor unit is connected to the outdoor unit with the
same terminals.As for the terminals of indoor unit is less than 3 ,just
connect the unit with the outdoor unit with 4 terminals.
2.If there is no 4 Line for the outdoor electric control panel (connecting line
of outdoor coil temperature sensors) ,please carry out electric wiring
according to the actual electric wiring nameplate, otherwise, the system will
display faults.
3.Units of communication cables, must use 485 communications dedicated
shielded twisted-pair cable .
4.Signal lines to stay away from disturbance sources.
34
5. 4 Electric wiring
NOTE:The cross-section areas of wires or lines should not be less than the
corresponding ones listed in the table below; Besides, if the power wires is
quite long from the unit, please choose the windings with larger crosssection area to guarantee the nomal power supply.
Model
(Cooling
capacity)
No more
than 18k
bu/H
Type
Connecting wires
Idoor power
RS485
220V
wires
Communicat Communicat
ion
ion
Cooling only
3×1.5mm2
Cooling &
heating
3×1.5 mm2
Cooling &
heating with 3×2.5 mm2
Auxiliary
/
3×1.5 mm2
/
/
/
5×1.5 mm2
/
/
3×2.5 mm2
5×1.5 mm2
3×4.0 mm2
5×1.5 mm2
3×6.0 mm2
5×2.5 mm2
/
5×4.0 mm2
Cooling only 3×1.0 mm2
18~24K
But/H
36~42K
But/H
Cooling &
heating
3×1.0 mm2
Cooling only 3×1.0 mm2
3×0.75 mm2
3×1.0 mm2
Cooling &
heating with 5×1.0 mm2
Auxiliary
Cooling &
heating
3×1.0 mm2
5×0.75 mm
5×0.75 mm
Cooling &
heating with 5×1.0 mm2
Auxiliary
Cooling &
heating
3×1.5 mm2
Cooling &
heating with
Auxiliary
5×2.5 mm2
2
RS485
twisted
shielded
2
wire pair 3×0.75 mm
2×0.5 mm2
2
3×0.75 mm2
或4×0.75
mm2
Cooling only 3×1.0 mm2
96K But/H
2
5×0.75 mm
Cooling only 3×1.0 mm2
48~60K
But/H
3×0.75 mm2
Cooling &
heating with 3×1.5 mm2
Auxiliary
Cooling &
heating
Outdoor power wires
singlethree-phase
phase
power
power
3×0.75
mm2+4×0.75
mm2
或5
×0.75 mm2
35
5. 5 Fault codes
Our company will provide convenient service to our customers, and install
all kinds of judgment systems, which can display the unmoral function of the unit .
Fault codes table(1)
4LED Faults
Digital display
Failure descriptionction
Timer light flashing
E2
Ambient temperature
sensor (T1) failure
Running light flashing
E3
Evaporator pipe temperature
sensor (T2) failure
Defrost light flashing
E5
Condenser pipe temperature
sensor (T3) failure
Warning light flashing
F5
Water fullfilled protection
Running light,
defrost light flashing
E1
Indoor unit and wire controller
communication failure
Running light, timer light flashing
P6
Indoor unit EEPROM failure
Defrost light, timer light flashing
F0
Indoor fan stall protection
F2
Outdoor protection
F7
outdoor unit over-current protection
Timer light, warning light flashing
E0
Indoor unit and outdoor
unit communication failure
Running light, defrost light,
timer light flashing
F3
High pressure protection
Defrost light , timer light,
warning light flashing
F4
Low pressure protection
Running light, timer light,
warning light flashing
F8
Outdoor unit exhaust
temperature over-high protection
Running light, defrost light,
timer light, warning light flashing
F9
Three-phase electricity
phase sequence failure
Defrost light,
warning light flashing
Note: the flashing frequency for all above indication lights is 1HZ.
36
Fault codes table(2)
Faults
LED
High pressure failure
Green light flashes once every 5s
Low pressure failure
Green light flashes 2 times every 5s
Temperature sensor T3 failure
Green light flashes 3 times every 5s
Green light flashes 4 times every 5s
Overflow test failure
Phase sequence test failure
Green light flashes 5 times every 5s
Exhaust temperature over-high failure
Green light flashes 6 times every 5s
Normal communication receiving
Yellow light keeps constant on
No communication receiving
Yellow light extinguishes
Communication failure warning
Yellow light flashes
Following cases are not air conditioner troubles
1. Sometimes, air conditioner may give off odours, for the unit can absorb the
smell of rooms, furniture, cigarettes, makeup, etc., and then emit it again.
2. A continuous low hissing sound is heard when the system is in operation. This
is the sound of refrigerant gas flowing through both indoor and outdoor units.
3. When starting up or stopping the air conditioner, you can hear “cracking”
sound from the air conditioner, this sound is produced by the contraction or the
expansion of the structural part of the air conditioner , which is caused by
temperature change
37
Fault codes table(3 )
For 10ph outdoor unit
Errors of the units, check the LED lights on PCB:
LED1 LED2
RED YELLOW
★
★
◆
◆
☆
☆
Type
Standby
Run mode
Phase sequence protection
A System Outdoor condenser
temp. sensor error.
Protection of condenser hitemp.( A T3)
B System Outdoor condenser
temp. sensor error.
Protection of condenser hitemp.( B T3)
Outdoor ambient temp. sensor
error
LED3
Remarks
GREEN
★
◆
☆ Manual reset
◇
☆
☆
☆
☆
◇
◇
◇
☆
Protection of low pressure
☆
◇
◇
Protection of high pressure
☆
◇
☆
Protection of over-current
◇
☆
◇
A System Communication failure
B System Communication failure
◆
◆
☆
◆
◆
☆
Note:
☆: Light for 0.5 second, extinguish for 0.5 second;
◆: Light;
◇: Extinguish;
★: Light for 2 second, extinguish for 2 second.
38
Reported
three times
within an
hour of
failure
is
necessary to
manually
reset
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