Haier Air Conditioner HBU 48CH03 User Manual

CASSETTE TYPE AIR CONDITIONER  
Operation & Installation Manual  
Indoor Unit  
HBU-28CH03  
HBU-28HH03  
HBU-36HH03  
HBU-42CI03  
HBU-42CH03  
HBU-42HI03  
HBU-48CH03  
HBU-48HJ03  
HBU-48CK03  
No.0150500604  
C
Please read this operation manual before using the air conditioner.  
Please keep this manual carefully and safely.  
Cautions  
Disposal of the old air conditioner  
Consult your local authorities for the name and  
address of the waste materials collecting  
centers and waste paper disposal services  
nearest to your house.  
Before disposing an old air conditioner  
that goes out of use, please make sure it's  
inoperative and safe. Unplug the air  
conditioner in order to avoid the risk of  
child entrapment.  
Safety Instructions and Warnings  
Before starting the air conditioner, read the  
information given in the User's Guide  
carefully. The User's Guide contains very  
important observations relating to the  
assembly, operation and maintenance of the  
air conditioner.  
It must be noticed that air conditioner  
system contains refrigerants, which require  
specialized waste disposal. The valuable  
materials contained in a air conditioner can  
be recycled. Contact your local waste  
disposal center for proper disposal of an  
old air conditioner and contact your local  
authority or your dealer if you have any  
question. Please ensure that the pipework  
of your air conditioner does not get  
damaged prior to being picked up by the  
relevant waste disposal center, and  
contribute to environmental awareness by  
insisting on an appropriate, anti-pollution  
method of disposal.  
The manufacturer does not accept  
responsibility for any damages that may  
arise due to non-observation of the following  
instruction.  
Damaged air conditioners are not to be  
put into operation. In case of doubt, consult  
your supplier.  
Use of the air conditioner is to be carried  
out in strict compliance with the relative  
instructions set forth in the User's Guide.  
Disposal of the packaging of your new  
air conditioner  
Installation shall be done by professional  
people, don't install unit by yourself.  
All the packaging materials employed in  
the package of your new air conditioner  
may be disposed without any danger to the  
environment.  
For the purpose of safety, the air  
conditioner must be properly grounded in  
accordance with specifications.  
The cardboard box may be broken or cut  
into smaller pieces and given to a waste  
paper disposal service. The wrapping bag  
made of polyethylene and the polyethylene  
foam pads contain no fluorochloric  
hydrocarbon.  
Always remember to unplug the air  
conditioner before opening inlet grill. Never  
unplug your air conditioner by pulling on the  
power cord. Always grip plug firmly and  
pull straight out from the outlet.  
All these valuable materials may be taken to a  
waste collecting center and used again after  
adequate recycling.  
1
Cautions  
3. The wiring method should be in line with  
the local wiring standard.  
4. The power cable and connecting cable  
are self-provided.  
All electrical repairs must be carried out  
by qualified electricians. Inadequate repairs  
may result in a major source of danger for  
the user of the air conditoiner.  
The requirement of the power cable:  
Do not damage any parts of the air  
conditioner that carry refrigerant by  
piercing or perforating the air conditioner's  
tubes with sharp or pointed items, crushing  
or twisting any tubes, or scraping the  
coatings off the surfaces. If the refrigerant  
spurts out and gets into eyes, it may result  
in serious eye injuries.  
Power Cable  
3G 4.0mm2  
Model  
HBU-28CH03 HBU-28HH03  
HBU-36HH03 HBU-42CH03  
HBU-42CI03 HBU-42HI03  
HBU-48CH03 HBU-48HJ03  
HBU-48CK03  
5G 2.5mm2  
The requirement of the connecting cable:  
Do not obstruct or cover the ventilation  
grille of the air conditioner. Do not put  
fingers or any other things into the  
inlet/outlet and swing louver.  
Model  
Connecting cable  
HBU-28CH03 HBU-36HH03  
HBU-42CH03 HBU-42CI03  
HBU-42HI03 HBU-48CH03  
HBU-48HJ03 HBU-48CK03  
4G 0.75mm2  
Do not allow children to play with the air  
conditioner. In no case should children be  
allowed to sit on the outdoor unit.  
6G 0.75mm2  
HBU-28HH03  
All the cables shall have got the European  
authentication certificate.  
Specifications  
5. The breaker of the air conditioner should  
be all-pole switch; and the distance  
between its two contacts should be no less  
3mm. Such means for disconnection must  
be incorporation in the fixed wiring.  
6. The waste battery shall be disposed  
properly.  
The refrigerating circuit is leak-proof.  
The machine is adaptive in following  
situation  
1. Applicable ambient temperature range:  
Rated Maximum Minimum  
27  
19  
35  
24  
20  
14.5  
7
32  
23  
43  
26  
27  
-
18  
14  
10  
6
15  
-
DB  
WB  
DB  
WB  
DB  
WB  
DB  
WB  
Indoor  
Cooling  
Heating  
7. The indoor unit installation height is at  
least 2.5m.  
outdoor  
Indoor  
24  
18  
-7  
-
outdoor  
6
2. If the supply cord is damaged, it must be  
replaced by the manufacturer or its service  
agentor a similar qualified person.  
2
Cautions  
Safety cautions  
Carefully read the following information in order to operate the airconditioner correctly.  
Below are listed three kinds of Safety Cautions and Suggestions.  
WARNING!  
CAUTION!  
Incorrect operations may result in severe consequences of death or serious injuries.  
Incorrect operations may result in injuries or machine damages; in some cases may  
cause serious consequences.  
INSTRUCTIONS: These information can ensure the correct operation of the machine.  
Be sure to conform with the following important Safety Cautions.  
The Safety Cautions should be at hand so that they can be checked at any time when needed.  
If the conditioner is transferred to the new user, this manual should be as well transferred to the new user.  
WARNING!  
Don't blow the human body with the cooling  
air too long, and don't let the room tempera-  
ture decrease too low  
Please let the dealer be responsible for installing  
the conditioner.  
Incorrect installation may cause water leak, elec-  
trical shock and fire hazard.  
either.  
Otherwise the one  
will feel unpleasant  
or harm ones' health.  
Don't put fingers or any other things into the  
inlet/outlet and swing louver while the condi-  
tioner is in operation.  
Because the highspeed  
fan is very dangerous  
If any abnormal phenomena is found (e. g.  
smell of firing), please cut off the power  
supply immediately, and contact the dealer  
to find out the handling method.  
In such case, to continue  
and may cause injuries.  
using the conditioner will  
damage the conditioner,  
Call the dealer to take measures to prevent the  
refrigerant from leaking.  
switch  
off  
and may cause electrical  
shock or fire hazard.  
If conditioner is installed in a small room be sure  
to take every measure in order to prevent suffoca-  
tion accident even in case of refrigerant leakage.  
When need maintenance and repairment,  
call dealer to handle it.  
Incorrect mainten-  
ance and repairment  
may cause water  
When conditioner is deinstalled or reinstalled  
dealer should be responsible for them.  
Incorrect installation may cause water leaking,  
electrical shock and fire hazard.  
leak, electrical shock  
and fire hazard.  
3
Cautions  
CAUTIONS!  
Don't operate the air-con-  
ditioner with damp hands.  
Conditioner should not be used for any other  
purpose other than airconditioning.  
Don't use air-conditioner for any other special  
purposes, e.g. the preservation and protection  
of food, animals, plants,  
pecision apparatus as well  
as work of art, otherwise  
the qualities of these  
stuffs may be damaged.  
Otherwise will be shocked.  
Only use correctly-typed fuse.  
May not use wire or any other  
materials replacing fuse, other-  
wise may cause faults or fire  
accidents.  
Don't place any burning unit  
in the air flow of air-conditioner,  
which may cause incomplete  
combustion.  
Don't dismantle the outlet of the outdoor unit.  
The exposure of fan is  
very dangerous which  
may harm human be-  
ings.  
No inflammable spray fluid  
should be permitted to be  
placed or used near to air-  
conditioner otherwise may  
cause fire accidents.  
When air-conditioner is co-used with other  
heat-radiator the frequent replacement of  
room atmosphere should be required.  
Inefficient venti-  
lation may cause  
suffocation.  
Air-conditioner should be  
cleaned only after power  
supply is cut off to keep  
from shock or hurt.  
After a long time use of air-conditioner the  
base should be checked for any damages.  
If the damaged base is  
not repaired, the unit  
may fall down and  
Don't clean air-conditioner  
with water.  
Otherwise may cause  
shock.  
cause accidents.  
No goods or nobody is permitted to placed on  
or stand on outdoor unit.  
When use the fumigating insecticide don't  
open air-conditioner.  
The falling of goods and  
people may cause acci-  
dents.  
Otherwise the poisonous chemicals may settle  
in air-conditioner which harm the health of  
chemical-allergic people.  
Pets and plants should not be blowed directly  
in the air flow.  
Otherwise will suffer  
damage.  
4
Cautions  
Installation  
Please ask the dealer or specialist to install, never try by the users themselves. After the  
installation please be sure of the following conditions.  
WARNING !  
Please call dealer to install the air-conditioner.  
Incorrect installation may cause water leaking, shock and fire hazard.  
CAUTION !  
Air-conditioner can't be installed in the  
environment with inflammable gases  
because the inflammable gases near to air-  
conditioner may cause fire hazard.  
Connect earthing wire.  
Earthing wire should not be con-  
nected to the gas pipe, water pipe,  
lightning rod or phone line, in-  
correct earthing may cause shock.  
Earthing  
Installed electrical-leaking circuit breaker.  
It easily cause electrical shock without circuit  
breaker.  
Use discharge pipe correctly to ensure  
efficient discharge.  
Incorrect pipe use may cause water leaking.  
[Location]  
Air-conditioner should be located in well-vented  
and easily-accessible place.  
As required, take measures against heavy snow.  
Air-conditioner should not be located in the  
following places:  
(a) Places with machine oils or other oil vapours.  
(b) Seaside with high salt content in the air.  
(c) Near to hot spring with high content of sulfide  
gases.  
(d) Area with frequent fluctuation of voltage e.g.  
factory, etc.  
(e) In vehicles or ships.  
[Wiring]  
Air-conditioner should be equipped with special  
power supply wire.  
[Operating noise]  
Chose the following locations:  
(a) Capable of supporting air-conditioner weight,  
don't increase operating noise and vibration.  
(b) Hot vapour from outdoor unit outlet and ope-  
rating noise don't disturb neighbour.  
(f) Kitchen with heavy oil vapour or humidity.  
(g) Near to the machine emitting electric-magnetic  
waves.  
No obstacles around the outdoor unit outlet.  
(h) Places with acid, alkali vapuor.  
TV, radio, acoustic appliances etc are at least 1 m  
far away to the indoor unit, outdoor unit, power  
supply wire, connecting wire, pipes, otherwise  
images may be disturbed or noises be created.  
5
Introduction to Spare Parts  
Air ourlet blade  
(adjust air outlet direction  
by the air direction adjusting  
button on remote controller)  
Suction grill  
Air filter  
(located in the suction grill)  
6
Maintenance  
[Clean air filter]  
NOTE  
When having to clean, don't dismantle air-filter,otherwise may cause faults.  
In the environment where there is too much dust, air filter should be cleaned for  
more times.  
(about half a year one time)  
(B) Wash with water.  
1. Open inlet grill  
With too much dust, use soft brush and neutral  
detergent.  
Pull the two handles at the same  
time, slowly draw them out.  
Swing off the water,  
and then place in cool  
place.  
4. Install air filter  
Put filter into protruding parts at the top of the  
inlet grill.  
Remove the air inlet grill  
2. Dismantle air filter  
5. Close inlet grill  
the reverse sequance of 1.  
Bottom of filter  
[Clean outlet and shell]  
CAUTION!  
Clip cpening  
Frame of air inlet grill  
Don't use gasoline, benzene, dilutant, polishing  
powder, or liquid inseticide.  
3. Clean  
CAUTION!  
Don't wash with water over 50 , otherwise may  
cause discoloring or deforming.  
Don't wash with water over 50 , to prevent  
discoloring or deforming.  
Use soft dry cloth to scrub.  
Don't dry over fire. Filter maybe burn.  
If duse not removed,can use water or neutral  
detergent.  
(A) Remove dust with vacuum filter.  
If ceiling built-in conditioner's swing plate too  
dirty, it can be dimantled(as described below)  
and cleaned.  
7
Maintenance  
Seasonal Reserve  
Post-season Care  
Operate the unit with FAN mode on a fair day for about half  
a day to dry the inside of the unit well.  
Stop operation and turn off the power supply switch .Electric  
power is consumed even the air conditioner is in stop.  
Clean the air filter, indoor unit and outdoor unit,and cover  
the unit with dustcoat.  
Pre-season Care  
See that there is no obstacles blocking the air inlet and  
air outlet of both indoor and outdoor unit to avoid reduce  
the working efficiency.  
Be sure to install the air filter, ensure that the air filter is not dirty. Otherwise may  
result in machine damages or cause malfunciton due th dust inside the unit  
To prevent compressor when start in HEAT mode, please  
cut in the power supply switch 12 hours before starting  
run,furthermore, always keep the power supply switch  
on during the using senson.  
NOTE  
1.The inner part of indoor unit must be cleaned. Consult dealer, because clean must be  
done by technician.  
2.In cooling operation, discharging system discharge water in room.  
8
Trouble Shooting  
The followings are not malfunction  
Water flowing sound is heard  
When the air conditoner is started, when  
the compressor starts or stops during  
operation or when the air conditioner is  
stopped,it sometimes sounds "Bi- Bi-"or  
"Godo-Godo". It is the flowing sound of  
the refrigerant , not a malfunction.  
Hua  
Hua  
Cracking sound is heard  
It smells.  
This is caused by heat expansion or  
contraction of plastics  
Air blown out from the indoor unit  
sometimes smells. The smell results from  
smells of furniture, paint , tobacco  
absorbed by indoor unit.  
During operation, white fog comes out of When in COOL or DRY mode, a thin water  
fog can be seen blown out of unit ,this is  
the condensed fog because the suddenly  
cooled indoor air is blown out.  
indoor unit.  
To prevent frost from being accumulated  
on the indoor unit heat exchanger, it  
sometimes automatically switched into the  
FAN mode,but it will soon back to the  
cooling mode.  
Automatically switch into FAN mode during  
cooling.  
The air conditioner cannot be restarted soon Please wait for three minutes.  
after it stops.  
This is because of the self-protection  
Air conditioner does not start?  
function of the system, therefore,it cannot  
be restarted for about three minutes after  
it stops.  
9
Trouble Shooting  
Air does not blow or the fan speed cannot  
be changed during drying.  
In DRY mode, when room temperature  
becomes 2 higher than temperature  
setting, unit rill run intermittently at LO  
speed regardless of FAN setting  
Water or vapor generated from the outdoor  
unit during heating.  
To get ride of the excess heat, indoor fan  
will continue running for a while after unit  
autom-atically stops.  
During heating,indoor fan is still running  
even unit is stopped.  
Please check the following things about your air conditioner before making a service call.  
Unit fails to start.  
Is the earth leakage  
breaker in action ?  
Is the power supply switch on? Is city supply power normal?  
ON  
OFF  
Be sure to turn off the  
power supply switch  
immediately and  
contact the sales dealer.  
Power supply switch is not in  
ON position.  
10  
When Trouble Happens  
Insufficient cooling or heating  
The operation controller  
adjusted as required  
Air filter too dirty ?  
Horizontal swing louver  
upward ? (in HEAT mode)  
Door or window left opened ?  
Any obstacle exists at the air  
inlet or outlet?  
Insufficient cooling  
Too crowed in the room ?  
Sunlight direct into the  
room ?  
Any other heat sources in the  
room?  
Cooled air blown out ( when heating)  
When the air conditioner does not operate properly after  
you have checked the above-mentioned items or when  
following phenomenon is observed,stop the operation  
of the air conditioner and contact your sales dealer.  
1)The fuse or breaker often shuts down.  
2)Water drops off during cooling or drying operation.  
3)There is an irregularity in operation or abnormal sound  
that is audible.  
11  
When Trouble Happens  
Failure code list  
Failure code Power lamp flash failure description  
Reasons  
on wired  
times/LED on  
controller  
PCB flash times  
E0  
E1  
10  
1
Fault in drain system Float switch is open  
Indoor ambient Sensor broken down or short circuit for  
temp. sensor failure more than 2m continuously  
Indoor pipe  
Sensor broken down or short circuit for more  
E2  
E3  
2
3
temp. sensor failure than 2m continuously  
Outdoor ambient  
temp. sensor failure than 2m continuously  
Sensor broken down or short circuit for more  
Outdoor pipe or Sensor broken down or short circuit for more  
discharge temp. than 2m continuously or outdoor discharge  
4
5
E4  
sensor failure  
temp. over 120 for 3 times continuously in  
30m  
Indicate phase failure when been electrified  
for the first time, indicate overcurrent  
protection during working procedure  
E5  
E6  
overcurrent  
Outdoor high pressure switch acts  
High pressure  
malfunction  
6
Outdoor low pressure switch acts or the  
proctector on the top of compressor breaks  
for protection  
Low pressure  
malfunction  
16  
C o m m u n i c a t i o n Communication abnormal for more than 4m  
failure between continuously  
indoor PCB and panel  
E8  
8
or wired controller  
Communication Communication between indoor PCB and  
failure between outdoor PCB open for more than 4m  
E9  
E7  
9
indoor and outdoor  
unit  
Temperature cutoff System failure. System cooling or heating  
13  
protection  
function abnormal  
12  
Customer Need-to-know  
Customer Need-to-know  
Please install the air conditioner according to the requirements specified in this manual  
to ensure the air conditioner work well.  
Be careful not to scratch the surface of the case during moving the air conditioner.  
Please keep the installation manual for future reference when maintenance and changing  
installation place.  
After installation ,please use the air conditioner according to the specification in the  
operation manual.  
Using Directions  
Avoid direct sunlight and airflow  
Adjust suitable airflow direction  
Keep the proper indoor temperature.  
Too cool or hot is not good for your health.  
Furthermore,it will result in excessive  
consumption of electric power.  
Effectively use timer.  
Using TIMER mode, you can make the  
room temperature reach a suitable  
temperature when you wake up or go back  
home.  
Optimal  
temper-  
ature  
ATTENTION: after finishing installation,confirm no refrigerant leakage.  
13  
Installation Procedure  
Installation tools  
The installation tools listed in the following sheet can be used as required.  
1. Screw driver  
2. Hacksaw  
3. Drill with a diameter of 60mm  
4. Inner hexagon spanner,shifting spanner  
5. Spanner (14, 17, 19, 24, 27mm)  
6. Pipe cutter  
7. Pipe expander  
8. Knife  
9. Pincers  
10. Leakage detector or soapy water  
11. Band tape  
12. Scraper  
13. Refrigerant oil  
Standard accessories  
The following parts mentioned in this manual are the installation accessories we prepared.  
Symbol  
A
Parts Name  
Adhesive tape  
Pipe clamp  
B
C
D
E
F
Connecting hose  
Drainage hose  
Non-hydroscopicheat insulating material  
Gypsum powder  
14  
Installation Procedure  
CAUTIONS:  
To ensure proper installation,read"Cautions" carefully before working.After installation,start  
the unit correctly and show customers how to operate and maintain the unit.  
Meanings of Warning and Cautions:  
Warning! Serious injury or even death might happen,if it is not observed.  
Caution! Injury to people of damages to machine might happen, if it is not observed.  
WARNING!  
Installation shall be done by professional people, don't install unit by yourself. Incorrect installation  
will cause water leakage, electric shock or fire.  
Install unit as per the Manual. Incorrect installation will cause water leakage, electric shock or fire  
accident.  
Be sure to use specified accessaries and parts. Otherwise, water leakage, electric shock, fire accident  
or unit falling down may happen.  
Unit should be placed on a place strong enough to hold the unit. Or, unit will fall down causing injuries.  
When install the unit, take in consideration of storms, typhoom, earthquake. Incorrect installation  
may cause unit to fall down.  
All electric work shall be done by experienced people as per eocal code, regulations and this Manual.  
Use exclusive wire for the unit. Incorrect installation or undersized electric wire may cause electric  
shock or fire accident.  
All the wires and circuit shall be safe. Use exclusive wire firmly fixed. Be sure that external force  
will not affect terminal bolck and electric wire. Poor contact and installation may cause fire accident.  
Arrange wire correctly when connectin indoor and outdoor power supply. Fix terminal cover firmly  
to avoid overheat, electric shock or even fire accident.  
In case retrigerant leakage occurred during unit installation, keep a good ventilation in the room.  
Poisonous gas will occur when meet with fire.  
Check the unit upon installation. Be sure there is no leakage. Refrigerant will induce poisonous gas  
when meet heat source as heater, oven, etc.  
Cut power supply before touching terminal bolck.  
CAUTION!  
Unit shall be grounded. But grounding shall not be connected to gas pipe water pipe,  
telephone line. Poor grounding will cause electric shock.  
Be sure to install a leakage breaker to avoid electric shock.  
Earthing  
Arrange water drainage according to this Manual. Cover pipe with insulation materials in case dew may  
occur. Unproper installation of water drainage will cause water leakage and wet your furniture.  
To maintain good picture or reduce noise, keep at least 1 m from T.V. radio, when install indoor and outdoor  
unit, connecting wire and power cable. (If the radio wave is relatively strong, 1 m is not enough to reduce  
noise).  
Don't install unit in following places:  
(a) Oil mist or oil gas exists, such as kitchen, or, plastic parts may get aged, or water leakage.  
(b) Where there is corrosive gas. Copper tube and welded part may be damaged due to corrosion,causing  
leakage.  
(c) Where there is strong radiation. This will affect unit's control system, causing malfunction of the unit.  
(d) Where flamable gas, dirt, and volatile matter (thinner, gasoline) exist, These mattermight cause fire  
accident.  
Refer to paper pattern when installing unit.  
Cautions for the installation personnel  
Don't fail to show customers how to operate unit.  
15  
Installation Procedure  
1
2
Before installation <Don't discard any accessories until completed>  
Determine the way to carry unit to installation place.  
Don't remove packing until unit reaches installation place.  
If unpacking is unavoidable, protect unit properly.  
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 smooth.  
Place strong enough to support unit .  
Place where inclination is not evident on ceiling.  
Enough space for maintenance.  
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)  
(2) Ceiling height  
Indoor unit can be installed on ceiling of 2.5-3m in height. (Refer to Field setting and Installation  
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 which need be reinforced)  
Installation space  
Unit:mm  
Air outlet  
Air inlet  
Air outlet  
Air outlet  
1500 Over  
Air outlet  
1500 Over  
Air inlet  
1500 Over  
1500 Over  
Model  
H
Model  
H
HBU-36HH03 HBU-42CH03  
HBU-42CI03 HBU-42HI03  
HBU-48CH03  
HBU-28CH03 HBU-28HH03  
HBU-48HJ03 HBU-48CK03  
260  
310  
290  
16  
Installation Procedure  
3
Preparation for the installation  
(1) Position of ceiling opening between unit and suspending bolt.  
Unit:mm  
(Ceiling opening)  
690  
890  
(Distance between  
suspending bolts)  
Refrigerant pipe  
drain pipe  
Suspending bolts  
*
680  
(Distance between  
suspending bolts)  
840(Indoor unit)  
HBU-28CH03  
HBU-28HH03  
890(Ceiling opening)  
*
950(Ornament panel)  
HBU-36HH03  
HBU-42CH03  
HBU-42CI03  
HBU-42HI03  
HBU-48CH03  
A
Note:  
Dimension of ceiling opening marked with can be  
*
aslarge as 910mm, but the matching part of ceiling  
with ornament panel shall be over 20mm.  
Suspending bracket  
Ceiling  
20 Over  
A
HBU-48HJ03  
HBU-48CK03  
Ceiling  
Suspending bracket  
Distance between  
suspending bolts 790mm  
25mm  
Ornament panel  
840mm(Indoor unit)  
890mm(Ceiling opening)  
950mm(Ornament panel)  
17  
Installation Procedure  
(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  
<Installation example>  
Anchor bolt  
(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.  
Roof  
Long nut  
Suspending bolt  
Ceiling  
Note: All the above mentioned parts shall be  
prepared in field.  
4
Installation of indoor unit  
In the case of new ceiling  
(1) Install unit temporarily  
Put suspending bracket on the suspending bolt. Be sure to use nut and washer at both ends of the bracket.  
(2) As for the dimensions of ceiling hole, see paper pattern. Ask your real estate dealer for details.  
Center of the hole is marked on the paper pattern.  
Center of the unit is marked on the card in the unit and on the paper pattern.  
5
6
Mount paper pattern  
onto unit using 3 screws . Fix the corner of the drain pan at piping outlet.  
< After installation on the ceiling >  
(3) Adjust unit to its right position. (Refer to preparation for the installation-(1))  
(4) Check unit's horizontal level.  
Watert pump and flating switch is installed inside indoor unit, check four corners of the unit for its level  
using horizontal compartor or PVC tube with water. (If unit is tilting against the direction of water  
drainage, problem may occur on floating switch, causing water leakage.)  
(5) Remove the washer mounlting , and tighten the nut above.  
2
(6) Remove the paper pattern.  
Nut (Prepare in field)  
In the case of ceiling already exists  
Washer (Prepared in field)  
(1) Install unit temporarily  
Put suspending bracket on the suspending  
bolt. Be sure to use nut and washer at both ends  
of the bracket. Fix the bracket firmly.  
(2) Adjust the height and position of the unit.  
(Refer to preparation for the installation (1) ).  
(3) Proceed with (3) and (4) of "In the case of  
new ceiling".  
2
Suspending bolts  
Fasten (double nuts)  
Insert  
Washer fixing pad  
(prepared in feild)  
Level  
[ secure the washer firmly]  
Polythene pipe  
18  
Installation Procedure  
Screws at the piping outlet is fixed at the corner  
of drain pan.  
Center of ceiling hole Paper pattern  
Paper pattern  
5
6
6
Screw (accessory)  
Screw (accessory)  
[Fix the paper pattern]  
5
Refrigerant piping  
(As for outdoor piping, please refer to installation Manual of outdoor unit.)  
Outdoor is precharged with refrigerant.  
Be sure to see the Fig.1, when connecting and removing piping from unit.  
For the size of the flare nut, please refer to Table 1.  
Apply refrigerant oil at both inside and outside of flare nut. Tighten it band tight 3-4 turns then tighten it.  
Use torque specified in Table 1. (Too much force may damage flare nut, causing gas leakage).  
Check piping joints for gas leakage. Insulate piping as shown in Fig. below.  
7
Cover joint of gas piping and insulator with seal.  
Apple refrigerant oil  
Medium size seal pad 11 (accessory)  
(Cover the piping joint with seal pad.)  
Clamp  
Torque spanner  
8
7
Insulator (accessory)  
(For liquid pipe)  
spanner  
Insulator (accessory)  
(For gas pipe)  
Gas pipe  
Piping joing  
Flare nut  
Liquid pipe  
Table 1  
Pipe size  
Tighten torque  
A(mm)  
8.3~8.7  
Flare shape  
.
1420~1720N cm  
6.35mm  
9.52mm  
.
(144~176kgf cm)  
.
2
R0.4 ~ 0.8  
3270~3990N cm  
12.0~12.4  
18.6~19.0  
22.9~23.3  
.
(333~407kgf cm)  
45  
.
6180~7540N cm  
15.88mm  
19.05mm  
.
(630~770kgf cm)  
.
9720~11860N cm  
.
(990~1210kgf cm)  
19  
Installation Procedure  
6
Installation of water drainage pipe  
(1) Install water drainage pipe  
Pipe dia, shall be equal or larger than that of unit piping.(pipe of polyethylent; size: 25mm; O.D:32mm)  
Drain pipe should be short, with a downward slope at least 1/100 to prevent air bag from happening.  
If downward slope can't be made, take other measures to lift it up.  
Keep a distance of 1-1.5m between suspending brackets, to make water hose straight.  
1-1.5m  
Slope over 1/100  
Use the self-provided stiff pipe and clamp 1 with unit. Insert water pipe into water plug until it reaches  
the white tape. Tighten the clip until head of the screw is less than 4mm from hose.  
Wind the drain hose to the clip using seal pad 9 .  
Insulate drain hose in the room.  
Large size seal pad  
(accessory)  
9
1
Clamp  
Clamp  
(accessory)  
Tape (White)  
Self-provided stiff pipe  
4mm below  
<Cautions for the drain water lifting pipe>  
Installation height shall be less than 280mm.  
There should be a right angle with unit, 300mm from unit.  
Suspending bracket  
300mm below  
1~1.5m  
Self-provided stiff pipe  
(accessory)  
Drain hose  
(accessory)  
drain water lifting pipe  
Clamp  
(accessory)  
(Note)  
The slope of water drain hose (1) shall be within 75mm, don't apply too much force on it.  
If several water hoses join together, do as per following proceedures.  
Connect water hoses with a T joint.  
Specifieations of the water hoses shall meet the requirements for the unit running.  
20  
Installation Procedure  
(2) Check if water drainage is smooth after installation.  
Charge, through air outlet or inspecting hole, 1200ccd water to see water drainage.  
(Just take HBU-28HH03 for example. For HBU-42CH03, HBU-42HI03, HBU-48CH03 there is no  
inspecting hole).  
After wiring  
Method of water charging  
Check water drainage in cooling operation.  
Self-provided stiff pipe  
10  
See also  
test run.  
Water drainage port for  
maintenance  
Inspecting hole  
When wiring is not complete  
(Drain water from  
this hole)  
Remove cover of control box, short connect  
"CHECK" terminal of the indoor unit, which  
is on the uper part of indoor unit PCB.  
Connect 1PH power to terminal 1 and 2 on  
terminal block.  
Charge water from  
100mm  
inspecting hole  
Note: In this operation, fan will be running.  
Upon confirmation of a smooth water  
drainage, be sure to cut off power supply and  
remove short connection of "CHECK"  
terminal.  
Watering can of plastic  
pipe should be about  
100 mm long  
Charge water from  
air outlet  
Wiring diagram  
Y/G  
Y/G  
Y/G  
Outdoor unit terminal block  
Y/G  
Outdoor unit terminal block  
W
1
B
2
R
3
BR GR  
W
L
B
N
Y/G  
W
1
B
2
R
3
W
L
B
N
Y/G  
Y/G  
4
5
Power supply  
1PH,220-230V~,50Hz  
1
2
3
4
5
Power supply  
1PH,220-230V~,50Hz  
1
2
3
Y/G  
W
B
R
W
B
R
Y/G  
Y/G  
Indoor unit terminal block  
HBU-28CH03  
Indoor unit terminal block  
HBU-28HH03  
Outdoor unit terminal block  
Y/G  
Y/G  
Indoor unit terminal block  
R
S
T
N
1
2
3
1
3
2
Power supply  
3N~,380-400V,50Hz  
Y/G  
Power supply  
3N~,380-400V,50Hz  
HBU-42CI03  
HBU-36HH03  
HBU-42CH03  
HBU-42HI03  
HBU-48CH03  
HBU-48CK03  
R S T N 1 2 3  
Outdoor unit terminal block  
HBU-48HJ03  
Y/G  
1
W
2
3
Y/G  
B R Y/G  
Indoor unit terminal block  
NOTE: L,N and 1,2 are equal on the terminal block.  
21  
Installation Procedure  
7
Wiring  
All supplied parts. materials and wiring operation must in appliance with local code and regulations.Use  
copper wire only.  
When make wiring, please refer to wiring diagram also.All wiring work must be done by qualified  
electricians.  
A circuit breaker must be installed, which can cut power supply to all system.  
Connecting of unit (Take HBU-28HH03 For example).  
Remove cover of switch box , drag wires into rubber tube A, then, after proper wiring with other wires,  
tighten clamp A. Connect wires of correct pole to the terminal block inside.  
Wind seal 12 around wires. (Be sure to do that, or, dew may occur).  
Upon connecting, replace control box cover .  
Moreover,connect the black terminal of indoor unit with the black terminal of outdoor unit properly using  
the connecting wire which has both white terminals in the accesory bag,and connect the blue terminal  
of indoor unit with the white terminal of out terminal as the same(For heat pump model).For cooling  
only unit,just connect the black terminalof indoor unit with the black terminal  
of outdoor unit properly.  
<<WARNING>>  
Connect wires of the Don't connect wires of Don't connect wires  
Obscrve the following when connecting power supply  
terminal block:  
of the different  
specifications.  
same specifications  
at two sides.  
the same specifications  
at one side.  
Don't connect wires of different specifications to  
the same terminal block.  
(Loose wire may cause overheating of circuit)  
Connect wires of same specifications as shown in  
right Fig.  
8
Wiring Example  
Pull the two handles at the same  
time, slowly draw them out.  
As for outdoor unit circuit, please see Installation Manual of outdoor unit.  
Note: All electric wires have their own poles, poles must match that  
on terminal block.  
9
Installation of ornament panel  
Cautions for the installation  
Be sure to show customers Operation Manual and guide them how  
to operate unit correctly. Before installation. read also the Installation  
Manual of indoor unit.  
Fig.1  
With this ornament , 2 or 3 air flow direction is not available.  
Suitable height is 3 m.  
1. Prepare ornament panel Handling of ornament panel  
Ornament panel shall not be placed face down or against wall, neither on  
an uneven object.  
Don' t bend carelessly the swing flap, or, problem may occur.  
Remove the air  
inlet grill  
Remove air inlet grill from ornament panel *  
Fig.2  
1
Pull the two handles at the same time,slowly draw them out.(Refer to Fig.1)  
2
Lift it up for about 45 degree and remove it from ornament. Tear off adhesive  
tape fixing air filter on the back of the air inlet grill. (Refer to Fig. 2)  
22  
Installation Procedure  
2. Mounting on high ceiling  
Side of ornament panel  
Side of indoor unit  
Swing motor  
3. Install ornament panel on indoor unit.  
For indoor unit installation, please refer to Installation Manual.  
Check whether indoor unit is horizontal with leveler or polythene pipe filled with water , and check that the dimension  
of the ceiling opening is correct. Take off the lever gauge before install the ornament panel.  
Fasten the screws to make the height difference between the two sides of  
indoor unit less than 5mm.  
First fix it with screws temporally.  
Where the swing motor locates in the figure of panle just is the location  
of liquide pipe.  
Connect the wires of synchro-motor.  
Connect the wire of signal.  
Fasten the two temporally fixing screws and other two, and tighten the  
four screws.  
Electric control box  
If no response of remote controller,check whether the wiring is correct,  
restart remote controller 10 seconds after shut off power supply.  
Tighten screws to redrce the thickness of seals between ornament  
and indoor unit to 5-8mm.  
Seal  
If connecting is not made, error code (A7) appears  
on remote controller. So, make proper connecting.  
Indoor unit  
Ceiling material  
_
5
8mm  
Ornament panel  
If indoor unit is at horizontal level and water drainage is  
smooth, then, indoor unit height can be adjusted throrgh  
holes at corners of ornament panel.  
If screws are not tighten tight, problems in Fig.3 might  
occur.  
Caution  
Tighten screws properly.  
If there are still space after tightening of screws,  
please readjust the height of indoor unit.  
Gas leakage.  
Gas leakage  
from roof.  
Leave no space.  
Mist exists and drop down.  
Contamination  
23  
Installation Procedure  
4. Installation of inlet grill .  
Installation of inlet grill.  
Install in reversed order of "Prepare ornament pandl".  
Inlet grill can be adjusted into four directions by turning inlet grill. Inlet grill position can be adjusted as per customers  
request.  
When installing inlet grill, take care not to twist wiring of swing flap motor.  
Pay special care to the following and check after installation  
Unproper installation may cause  
Item to the checked  
Is indoor unit firmly installed?  
Check  
Unit might fall down, make vibration or noise.  
This may lead to gas shortage.  
Is gas leakage check performed?  
Is unit properly insulated?  
Dew or water drop may occur.  
Dew or water drop may occur.  
Is water drainage smooth?  
Is power voltage meet that stipulated on the nameplate?  
Is wiring and piping correctly arranged?  
Is unit safely grounded?  
Problem may occur or parts got burned.  
Problem may occur or parts got burned.  
There might be a danger of electric shock.  
Problem may occur or parts got burned.  
Is wire size correct?  
Are there any obstacles on air inlet and outlet grill of  
indoor and outdoor unit?  
This may cause poor cooling.  
It is hard to control refrigerant charging  
amount.  
Is record made for piping length and refrigerant  
charging amount?  
24  

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