Carrier 42QSS009DS series User manual

DUCT TYPE AIR CONDITIONER
INSTALLATION MANUAL
IMROPTANT NOTE:
Read this manual carefully before installing or operating your new air conditioning unit.
Make sure to save this manual for future reference.
Please check the applicable models, F-GAS and manufacturer information from the
“Owner's Manual - Product Fiche” in the packaging of the outdoor unit.
(European Union products only)
L
G B
ENG ISH
INSTALLATION MANUAL
S K
SLOVENČINA
S Q
H R
HRVATSKI
B G
C Z
M K
МАКЕ
Д
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Н
С
КИ
SHQIP
ČEŠTINA
БЪЛГАРСКИ
S R SRPSKI
R O ROMÂNĂ
S L
B S
MAGYAR
SLOVENŠČINA
BOSANSKI
H U
E L
ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ
ΕΛΛΗΝΙΚΑ
MANUALI I INSTALIMIT
NÁVOD NA INŠTALÁCIU
УПАТСТВО ЗА МОНТИРАЊЕ
PRIRUČNIK ZA UGRADNJU
PRIRUČNIK ZA INSTALACIJU
UPUTSTVO ZA UGRADNJU
NAVODILA ZA NAMESTITEV
MANUAL DE INSTALARE
SZERELÉSI ÚTMUTATÓ
NÁVOD K INSTALACI
РЪКОВОДСТВО ЗА МОНТАЖ

The manufacturer reserves the right to change any product specifications without notice.
GB-1
This product has been determined to be in compliance with the Low Voltage Directive (2014/35/EC),
and the Electromagnetic Compatibility Directive (2014/30/EC) ofthe European Union.
CorrectDisposal ofThis Product
(Waste Electrical & Electronic Equipment)
(Whenusingthisairconditioner inEuropeancountries,thefollowingguidancemustbefollowed)
- This marking shown on the product or its literature, indicates that waste electrical and eletrical equipment
(WEEE as in directive 2012/19/EU) should not be mixed with general household waste.
It is prohibited to dispose of this appliance in domestic household waste.
For disposal, there are several possibilities:
1. The municipality has established collection systems, where electronic waste can be disposed of at least
free of charge to the user.
2. When buying a new product, the retailer will take back the old product at least free of charge.
3. The manufacture will take back the old appliance for disposal at least free of charge to the user.
4. As old products contain valuable resources, they can be sold to scrap metal dealers.
Wild disposal of waste in forests and landscapes endangers your health when hazardous substances leak
into the ground-water and find their way into the food chain.
ThisproductcontainsfluorinatedgasescoveredbytheKyotoProtocol
Chemical Name ofGas
Global Warming Potential (GWP) of Gas
R410A / R32
2088 / 675
CAUTION
1. Paste the enclosed refrigerant label adjacent to the
charging and/or recovering location.
2. Clearly write the charged refrigerant quantity on the
refrigerant label using indelible ink.
3. Prevent emission of the contained fluorinated gas.
Ensure that the fluorinated gas is never vented to
the atmosphere during installation, service or
disposal. When any leakage of the contained
fluorinated gas is detected, the leak shall be
stopped and repaired as soon as possible.
4. Only qualified service personnel are allowed to
access and service this product.
5. Any handling of the fluorinated gas in this product,
such as when moving the product or recharging
the gas, shall comply under (EC) Regulation No.
517/2014 on certain fluorinated greenhouse gases
and any relevant local legislation.
6. Contact dealers, installers, etc., for any questions.
Indoor Unit Dimension(IDU) Outdoor Unit Dimension(ODU) Rated Voltage & Hz
42QSS009DS* 700x635x210 38QUS009DS* 800x333x554
42QSS012DS* 700x635x210
42QSS012D8S* 700x450x200
42QSS018DS* 38QUS018DS*
42QSS018R8S* 38QUS018R8S*
42QSS024DS* 38QUS024DS*
42QSS024R8S* 38QUS024R8S*
42QSS030DS* 1360x774x249 38QUS030DS* 946x410x810
42QSS036DS* 38QUS036DS*
42QSS036R8S* 38QUS036R8S*
42QSS048DS* 1200x874x300 38QUS048DS* 952x415x1333
42QSS036DS* 38QUS036DT*
42QSS036R8S* 38QUS036R8T*
42QSS048DS* 38QUS048DT*
42QSS048R8S* 38QUS048R8T*
42QSS060DS* 38QUS060DT*
42QSS060R8S* 38QUS060R8T*
220-240V~ 50Hz
IDU:220-240V~ 50Hz
ODU:380-415V 3N~ 50Hz
880x674x210
946x410x810
946x410x810
952x415x1333
952x415x1333
845x363x702
800x333x554
1360x774x249
1100x774x249
800x333x554
1200x874x300
38QUS012DS*
1360x774x249
1200x874x300

CONTENTS
3
3
5
6
6
8
8
9
10
12
12
12
13
13
14
14
14
15
15
15
16
16
16
17
17
18
20
21
21
21
21
22
23
1. PREPARING FOR INSTALLATION ················································································
1.1 Safety Percautions ·································································································
1.2 Accessories ············································································································
2. INDOOR UNIT INSTALLATION ·······················································································
2.1 Installation Site Choosing ······················································································
2.2 Install The Suspension Bolts ··················································································
2.3 Handing The Indoor Unit ························································································
2.4 Install The Drain Pipe ····························································································
2.5 Install The Duct ·····································································································
2.6 Change The Air Ventilation Direction ·····································································
2.7 Install Fresh Air Duct ····························································································
3. OUTDOOR UNIT INSTALLATION ················································································
3.1 Installation Site Choosing ······················································································
3.2 Outdoor Unit Mounting Dimension ·········································································
3.3 Space Requirement For Outdoor Unit ····································································
3.4 Install The Outdoor Unit ·······················································································
3.5 Install The Drain Pipe For Outdoor Unit ·································································
4. REFRIGERANT PIPING WORK ····················································································
4.1 Flaring ·················································································································
4.2 Piping Work ··········································································································
4.3 Refrigerant Pipe ···································································································
4.4 Air Evacuation ·····································································································
4.5 Leakage Test ······································································································
5. WIRING ·························································································································
5.1 Power From Outdoor Side ·····················································································
5.2 Independence Power Supply ·················································································
5.3 External static pressure setting ·············································································
6. MOTOR AND WATER PUMP DISASSEMBLE ····························································
7. FINAL CHECK AND TRIAL OPERATION ·····································································
7.1 Final Check List ·····································································································
7.2 Manual Operation ··································································································
7.3 Trial Operation ·······································································································
8. INFORMATION SERVICING ······················································································
7
GB-2
Caution:Risk of fire
for R32/R290 refrigerant only
GB

GB-3
1. PREPARING FOR INSTALLATION
1.1 SAFETY PRECAUTIONS
WARNING
Installing, starting up, and servicing air-conditioning equipment can be hazardous due to system
ressures, electrical components, and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should install, start-up, and serve this equipment.
When working on the equipment, observe precautions in the literature and on tags, stickers, and labels
attached to the equipment.
Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher
nearby when brazing. Use care in handing, rigging, and setting bulky equipment.
Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to
the unit. Consult local building codes and National Electrical Code for special requirement.
This symbol indicates the possibility of personnel injury or loss of life.
Refrigerant gas is heavier than air and replaces oxygen.Amassive leak could lead to oxygen
depletion, especially in basements, and an asphyxiation hazard could occur leading to serious
injury or death.
When the air conditioner is installed in a small room, provide appropriate measures to ensure that
the concentration of refrigerant leakage occur in the room does not exceed the critical level.
If the refrigerant gas leaks during installation, ventilate the area immediately.
Refrigerant gas may produce a toxic gas if it comes in contact with fire such as from a fan heater, stove or
cooking device.
Exposure to this gas could cause severe injury or death.
Disconnect from power source before attempting any electrical work. Connect the connective cable
correctly.
Wrongly connecting may result in electric parts damaged.
Use the specified cables for electrical connections and attach the wires firmly to the terminal block
connecting sections so that the external force is not exerted to the terminal.
Be sure to provide grounding.
Do not ground units to gas pipes, water pipes, lightning rods or telephone wires. Incomplete grounding
could cause a severe shock hazard resulting in injury or death.
Safely dispose of the packing materials.
Packing materials, such as nails and other matal or wooden parts, may cause stabs or other injuries. Tear
apart and throw away plastic pacaging bags so that children will not play with them. Children playing with
plastic bags face the danger of suffocation.
Do not install unit near concentrations of combustible gas or gas vapors.
Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment
damage.
When installing or relocating the system, do not allow air or any substances other than the
specified refrigerant (R410A/R32) to enter the refrigeration cycle.
This appliance is not accessible to the general public and intended to be maintained by qualified
service personnel and located at a level not less than 2.5m from floor.
Electrical work should be carried out in accordance with the installation manual and the national,
state and local electrical wiring codes.
Be sure to use a delicated power circuit. Never share the same power outlet with other appliance.

7
GB-4
1. PREPARING FOR INSTALLATION
WARNING
Never modify this unit by removing any of the safety guards or bypassing any of the safety
interlock switches.
In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, this appliance must
not be supplied through an external switching device, such as a timer, or connected to a circuit
that is regularly switched on and off by the utility.
Use the prescribed cables for electrical connection with insulation protected by insulation
sleeving having an appropriate temperature rating.
Unconformable cables can cause electric leak, anomalous heat prodcution or fire.
NOTE: The following information are required for the units adopt R32/R290 Refrigerant.
The appliance shall be stored in a room without continuously operating ignition sources.
(for example: open flames, and operating gas appliance or an operating electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
Compliance with national gas regulations shall be observed.
Appliance shall be stored in a well-ventilated area where the room size corresponds to the room
area as specified for operation.
Appliance shall be installed, operated and stored in a room with a floor area larger than X m²,
installation of pipe-work shall be kept to a minimum X m²(Please see the following form ).
Appliance shall not be installed in an unventilated space, if that space is smaller than X m²
(Please see the following form ).Spaces where refrigerant pipes shall be compliance with
national gas regulations.
Amount of refrigerant
to be charged (kg)
maximum installation
height (m)
Minimum room
area (m²)
≤2.048 1.8m 4
0.6m 35
2.048-3.0 1.8m 8
0.6m 80
>3.0 1.8m 9
Model(Btu/h)
≤30000
30000-48000
>48000
0.6m 80
Note about Fluorinated Gases
This air-conditioning unit contains fluorinated gases. For specific information on the type of gas
and the amount, please refer to the relevant label on the unit itself.
Installation, service, maintenance and repair of this unit must be performed by a certified technician.
Product uninstallation and recycling must be performed by a certified technician.
If the system has a leak-detection system installed, it must be checked for leaks at least every 12
months.
When the unit is checked for leaks, proper record-keeping of all checks is strongly recommended.
CAUTION
This symbol indicates the possibility of property damage or serious consequences.
To avoid personal injury, be careful when handling parts with sharp edges.
Do not install the indoor or outdoor units in a location with special environmental conditions.
Do not install in a place that can amplify the noise level of the unit or where noise and discharged
air might disturb neighbors.
GB

1. PREPARING FOR INSTALLATION
1.2 ACCESSORIES
1
Name of Accessories Q‘ty(pc)
1
Shape Use
To remote control the air conditioner
2
Battery
Tapped screw
Remote controller holder To hold the remote controller on the wall
N/A
For remote controller
The following accessories are supplied with the unit. The type and quantity may differ depending on
the specifications.
2
1
Remote Controller
To fix the remote controller holder
Connecting wire for display (2m)
Wire between display and control board.
Note: The accessories related to remote controller will be unavailable for the models with
wired controller.
For wired controller accessories, please refer to attached manual of wired controller.
The following accessories are related to remote controller.
3
2
1
Name of Accessories
Manual
Pipe insulation material
Insulation
Q‘ty(pc) Shape Use
1
1
<Installation manual>, <User manual>,
<Remote controller manual> (or
<Wired controller manual>)
Drain outlet
Connect drainage hose for outdoor unit.
Gasket
Seal the drainage outlet for outdoor unit.
Clamp filter
(on some models)
For conforming to EMC standards
(Used for indoor/outdoor connecting wires)
Seal sponge 1 For changing of air intake direction.
Mode
Timer
Turbo ION
LED
ON/OFF Fan
Follow
me
Self
clean
72GB-5
Perform the drainage/piping work securely according to the installation manual.
Improper drain piping may result in water leakage and property damage.
Do not instal the air conditioner in the following places.
-The place where there is mineral oil or arsenic acid.
-The place where corrosive gas (such as sulfurous acid gas) or combustible gas (such as thinner)
can accumulate or collect, or where volatile combustible substances are handled.
-The place there is equipment that generates electromagnetic fields or high frequencey harmonics.
CAUTION

GB-6
2.1 INSTALLATION SITE CHOOSING
INDOOR UNIT
■Where it is out of direct sunlight.
■Where the airflow is not blocked.
■Where an optimum air distribution is ensured.
■Where the condensate can drain correctly and safely.
■Install the indoor unit on a wall/ceiling that prevents vibration and is strong enough to hold the product
weight.
■Maintain sufficient clearance around the indoor unit for maintenance and servicing.
■Where the air filter can be removed and cleaned easily.
■Where the piping between the indoor and outdoor units is within the allowable limits.
■Install the indoor unit 1m or more away from the TV or radio to prevent the screen from being distorted or
noise from being generated.
■Install the indoor unit as far away as possible from fluorescent and incandescent lights so that the remote
control can be operated well.
SPACE REQUIREMENT FOR INDOOR UNIT(42QSS009/012DS*)
Air filter
Air filter Electric control cabinet
Electric control cabinet
The size of outline dimension and air outlet opening
The size of air return opening and
The size of descensional ventilation opening The size of mounted lug
Unit: mm
T
M
P
N
O
Air outlet opening size Air return opening size Size of mounted hook New air
inlet
Outline dimension
ABCDEFGHIJK LM
NO
26 20 700 210 635 570 65 493 35 119 595 200 80 740 350
009/012 790
P
Φ90
T
MODEL
(QSS_DS)
2. INDOOR UNIT INSTALLATION
GB

The size of descensional ventilation
opening and mounted lug
7GB-7
Confirm that there is enough room for installation and maintenance.
Inspection Opening
600mmX600mm
300mm or more
200mm or more
SPACE REQUIREMENT FOR INDOOR UNIT(18k~60k & 42QSS012D8S*)
The size of outline dimension and air outlet opening
The size of air return opening
Unit: mm
2. INDOOR UNIT INSTALLATION
Air filter
Air filter
Electric control box
MODEL
(42QSS)
Outline dimension
ABC
018 210 674880
024 249 7741100
030/036 249 7741360
048/060 300 8741200
air outlet opening size
DE F
136 706600
175 926700
175 1186700
227 1044800
air return opening size
190
228
228
280
Size of mounted lug
I
920782
11401001
14001261
12401101
J
G
H
508
012 200 506700 152 537450 186 741599 360
598
598
697

2. INDOOR UNIT INSTALLATION
2.2.1 Mark the spots on the ceiling where you want to install the indoor unit.
2.2.2 Drill holes at the marking spots and then insert bolt anchors. Use existing ceiling supports or construct
a suitable support.
NOTE
Use a hole-in-anchor, sunken insert for existing ceilings.
2.2.3 Install the suspension bolts (use W3/8 or M10 suspension bolts, 4 pieces) depending on the ceiling type.
2.2 INSTALL THE SUSPENSION BOLTS
2.3.2 Hang the indoor unit to the suspension bolts between two nuts.
2.3.3 Screw the nuts to suspend the unit
2.3.4 Adjust level of the unit by using level vial for all four sides.
It is recommended to install the Y joint before installing the indoor unit
When moving the unit during or after unpacking, make sure to lift by holding its hooks.
Do not exert any pressure on other parts, especially the refrigerant piping, drain piping and flange parts.
CAUTION
GB-8
2.3 HANGING THE INDOOR UNIT
2.3.1 Screw double nuts to each suspension bolts making space for hanging the indoor unit.
Screw nut
Washer
Hanging
screw bolt
Overhang part
Shockproof cushion
Concrete
Suspension bolt(
3/8” or M10)-field supply
Hole in anchor
Hole in plug
Insert
Ensure that the ceiling is strong enough to bear the weight of the unit. Before hanging the unit, test the
strength of each attached suspension bolt. It might be necessary to reinforce the ceiling frame to
prevent shaking. Consult an architect or carpenter for details
CAUTION
GB

2. INDOOR UNIT INSTALLATION
7
GB-9
2.4 INSTALL THE DRAIN PIPE
Pipe clamp
Indoor unit Flexible hose
Drain hose connection port
(O.D.:Φ25)
PVC water pipe
PVC adhesive
2.4.1 Drainpipe connection
For unit without the drain pump
Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space 1.0~1.5m.
Install U-trap at the end of the drainpipe to prevent a nasty smell to reach the indoor unit.
Do not install the drainpipe to upward position. It may cause water flow back to the unit.
Lean over 1/100
1.0-1.5m
For unit with the drain pump
The drain pipe should be install within 200mm from the flexible hose and then install horizontal drainpipe with
a slope of 1/00 or more and fix it by hanger space of 1.0~1.5m.
The flexible hose should not be installed upward position; it may cause water flow back to the indoor unit.
Lean over 1/100
＜200mm
1.0-1.5m
Max. 550mm
2.4.2 Drainage test
Unit without Pump
Conduct the drainage test before making the duct connection
Gradually insert about 2 liters of water into the drain pan indoor unit with stow tube.
Check and confirm the water flows out through the drain hose.
Check the drain water drops at the end of the drain pipe.
Make sure there is no water leak at the drainage
Stow tube
Unit without pump
Remove the cover of the drain hose connection port
Insert the flexible hose (field supply,I.D.: Φ25 ) to the drain hose port. Fix it to the indoor unit with pipe clamp
(field supply) securely.
Install the flexible hose to the PVC water pipe securely with PVC adhesive. Wrap the drain hose with the
insulation materials.

2. INDOOR UNIT INSTALLATION
GB-10
2.5 INSTALL THE DUCT
NOTE
Air inlet and air outlet should be apart far enough to ensure the performance of the unit.
When attaching a duct to the intake side, be sure also to attach an air filter (field supply)
Be sure to insulate the duct to prevent condensation from forming
Refer to the fan performance curve as below to select appropriate duct.
Canvas tie-in Canvas tie-in
Air outlet
Isolation booth
Isolation booth
Inspection opening
Air inlet
Air filter
Cover
Use the hanger rods to install the connecting duct instead of loading it directly onto the indoor unit.
Use nonflammable canvas tie-in to prevent vibration.
Ducted not exceeding 12000 Btu/h cooling capacity, the maximum allowable discharge duct length is less
than 1m.
If external resistance is too high (due to long extension of duct, for example), the air flow volume may
drop too low at each air outlet. Consult qualified engineer to increase the fan speed to increase the static
pressure corresponding to external resistance.
Unit with Pump
Open the cover of water supply intake by turning and pulling the cover.
Gradually insert about 2 liters of water into the indoor unit with stow tube.
Operate the unit under COOLING mode and check a drain pump pumping (a time lag of 1 minute is allowed
before water flowing out depending on the length of the drain pipe).
Check and confirm the water flows out through the drain hose.
Check the drain water drops at the end of the drain pipe.
Make sure there is no water leak at the drainage
Reassemble the cover of water supply intake.
C
L
O
S
E
D
O
P
E
N
C
L
O
S
E
D
O
P
EN
Water supply intake
Unit with pump
CAUTION
Connect the duct supplied in the field.
2.5.1 Attach the duct and intake-side/outlet-side flange (field supply)
2.5.2 Connect the flange to the main unit with screws
2.5.3 Wrap the flange and duct connection area with aluminum tape or something similar to prevent air
escaping.
GB

7GB-11
2. INDOOR UNIT INSTALLATION
2.4.4 Static pressure can be re-set by dia switch ENC2 on control board.
ENC2
CODE
42QSS009/012DS
DEFAULT SETTING
01234
01020 4030
Fan performance curve at different static pressure setting.(cooling mode)
42QSS009DS*/42QSS012DS*
Code 0 Code 1 Code 2
Code 3 Code 4
External staƟc pressure In. WG (Pa)
Air volume CFM (m3/h)
High
Low
Limit
Rated Point
0.08
(20)
0.06
(15)
0.04
(10)
0.02
(5)
0206 265 324 382 441
(350) (450) (550) (650) (750)
External staƟc pressure In. WG (Pa)
Air volume CFM (m3/h)
High
Middle
Low
Limit
Rated Point
0.10
(25)
0.08
(20)
0.06
(15)
0.04
(10)
0.02
(5)
0206 265 324 382 441
(350) (450) (550) (650) (750)
External staƟc pressure In. WG (Pa)
Air volume CFM (m3/h)
Limit
High
Middle
Low
Rated Point
0.14
(35)
0.12
(30)
0.10
(25)
0.08
(20)
0.06
(15)
0.04
(10)
0.02
(5)
0206 265 324 382 441
(350) (450) (550) (650) (750)
External staƟc pressure In. WG (Pa)
Air volume CFM (m3/h)
Limit
Low
High
Rated Point
0.20
(50)
0.16
(40)
0.12
(30)
0.08
(20)
0.04
(10)
0
206 265 324 382 441
(350) (450) (550) (650) (750)
External staƟc pressure In. WG (Pa)
Air volume CFM (m3/h)
Limit
Low
Rated Point
206 265 324 382 441
(350) (450) (550) (650) (750)
0.24
(60)
0.20
(50)
0.16
(40)
0.12
(30)
0.08
(20)
0.04
(10)
0

2. INDOOR UNIT INSTALLATION
GB-12
1. Remove the air filter from the flange (two
locations).
Remove the flange from the rear side.
Remove the ventilation panel from the
bottom side.
2. Attach the seal sponge at the place showing in
the following diagram.
Reinstall the removed flange at the bottom and
reinstall the removed the ventilation panel at the
rear side.
3.
Attach the air filter to the flange in the manner shown in the diagram.
Flange
or
Seal sponge
2.6 CHANGE THE AIR VENTILATION DIRECTION (Alternative: Rear or Bottom)
NOTE
For standard unit, air intakes from rear side. Air intake direction can be modify at site from rear side
to bottom side following the process in below.
2.7 INSTALL FRESH AIR DUCT
All the indoor units reserve the hole to joint the fresh air pipe. The hole size as following:
Duct joint for fresh air
80mm
80mm
Ø90mm
Ø125mm Ø160mm
MODLE
42QSS009/012 42QSS018~060
GB

3. OUTDOOR UNIT INSTALLATION
7
GB-13
OUTDOOR UNIT
■Where it is out of rain or direct sunlight.
■Where it is well-ventilated and free from obstacles near the air inlet and air outlet.
■Where does not increase the operating noise or vibration of the outdoor unit.
■Where does not cause any drainage problem with discharged water.
■Install the outdoor unit properly at a place that is durable enough to the weight of the outdoor unit.
■Where provides appropriate clearances as outlined
■Where the piping between the indoor and outdoor units is within the allowable limits.
■In regions with snowfall and cold temperatures, avoid installing the outdoor unit in areas where it can
be covered by snow. If heavy snow is expected, a field supplied ice or stand and field supplied-installed
wind baffle should be installed to protect the unit from snow accumulation and blocked air intake.
■When installing the outdoor unit in a place that is
constantly exposed to a strong wind, it is recommended
that a wind baffle be used.
3.1 INSTALLATION SITE CHOOSING
X
O
Strong wind
3.2 OUTDOOR UNIT MOUNTING DIMENSION
W
H
A
B
D
W
H
Outline dimension
800 554 333 340
WHD A B
009~018
024
030/036
514
845 702 363 350 540
945 810 420 403 673
952 1333 415 404
048/060
634
Model
(38QUS)

3. OUTDOOR UNIT INSTALLATION
GB-14
3.3 SPACE REQUIREMENT FOR OUTDOOR UNIT
>30cm
>30cm
>200cm
>60cm
(Wall or obstacle)
Maintain channel
Air outlet
Air inlet
MP
Air inlet
N
>60cm
Fix with bolt
Single Unit Installation
Before installation, check strength and horizontality of the base so that abnormal sound does not
generate.
Fix the base firmly with anchor bolts (M10) to prevent it from collapsing.
Install the foundation and vibration-proof rubbers to directly support the bottom surface of the fixing
leg that is in contact with the bottom plate of the outdoor unit.
3.4 INSTALL THE OUTDOOR UNIT
≥100mm
100～300mm
Outdoor unit
Vibration-proof rubber
Anchor bolt (M10)
Drainage (Wide 100mm x Depth 150mm)Mortar Hole (Φ100mm x Depth 150mm)
>200 >50 >300 >300 >30
>60
>200
>30
Parallel connect the two units or above Parallel connect the front with rear sides.
Connect the drain outlet with an extension drain hose
Fit the gasket onto drain outlet.
Insert the drain outlet into the base pan hole of outdoor unit, and rotate 90 degree to securely assemble
them.
3.5 INSTALL THE DRAIN PIPE FOR OUTDOOR UNIT
unit:cm unit:cm
Base pan hole
of outdoor unit
Drain hose
(Field supply)
Gasket
Drain Outlet
GB

7
GB-15
4. REFRIGERANT PIPING WORK
Check if the height difference between indoor unit & outdoor unit and the total length of refrigerant pipe
meet system requirement.
Refrigerant piping work follows the indoor unit and outdoor unit installation, connect the pipe at the indoor
side first, then the outdoor side.
Always keep ends of tubing sealed by placing a cap or covering with tape during installation and do NOT
remove them until you are ready to connect the piping.
Be sure to insulate any field piping all the way to the piping connection inside the unit. Any exposed piping
may cause condensation or burns if touched.
CAUTION
4.1 FLARING
90
Oblique Rough Burr
Outside diameter
A(mm)
Max
8.7Φ6.35mm
Φ9.52mm
Φ12.7mm
Φ15.88mm
Φ19.05mm
12.4
15.8
19.0
23.3
8.3
12.0
15.4
18.6
22.9
Min
R0.4~0.8
45°±2
90 °
±4
A
In case of needing brazing, work with Nitrogen gas blowing.
Improper torque will cause flare damage or gas leaks.
CAUTION
TorqueTubing size
18 ~ 20 N.m
25 ~ 26 N.m
35 ~ 36 N.m
45 ~ 47 N.m
65 ~ 67 N.m
Φ6.35mm
Φ9.52mm
Φ12.7mm
Φ15.88mm
Φ19.05mm
Use separate thermal insulation pipes for gas &
liquid pipes.
The thickness above is a standard of the indoor
temperatureof27°Candhumidityof80%.Ifinstalling
in an unfavorable conditions such as near bath-
rooms, kitchens, and other similar locations,
reinforce the insulation.
Insulation’sheat-resistancetemperatureshould be
more than 120°C.
Use the adhesives on the connection part of insula-
tion to prevent moisture from entering.
Repairandcoveranypossiblecracksintheinsulation
specially check the bent part or hanger of pipe.
4.1.1 Using a pipe cutter to cut the pipe to the requested
length. Ensure that the cut edge remains at 90° with
the side of the pipe.
4.1.2 Use a reamer to remove burrs with the cut surface
downward so that the chips do not enter the pipe.
4.1.3 Carry out flaring work using flaring tools as below.
4.1.4 Check if the flaring is properly made. See incorrectly
flared pipes sample below.
4.2 PIPING WORK
4.2.1 Align the center to tighten the flare nut and
finish connection using two wrenches.
Flare nut
Wrench Torque wrench
4.2.2 Select the appropriate insulation material for
refrigerant pipe. (Min. 10mm, thermal insulating
foam C)
Inclined Damaged
Surface Cracked Uneven Thickness
NOTE
Tools required for flaring are pipe cutter, reamer,flaring
tool and pipe holder.
For R32 refrigerant models, the pipe connection points
must be placed outside of room.

GB-16
4. REFRIGERANT PIPING WORK
After the piping work is finished, make sure to check the connection part of each refrigerant pipe and confirm
that there is no gas leak by applying soapy water to them or by using a leak detector specific for HFC refrigerants.
Refer below picture for illustration.
A: Low pressure stop valve B: High pressure stop valve
C& D: Indoor unit flare nuts
Check-point of indoor unit
Check-point of outdoor unit
A
BC
D
4.3 REFRIGERANT PIPE
Gas SideLiquid Side Allowable
pipe length (m)
Max. Height
difference (m)
Charge less
length (m)
Additional charge
per meter (R410A/R32)
4.4 AIR EVACUATION
Connect the charge hose from the manifold gauge to the service port of the gas side packed valve.
Connect the charge hose to the port of the vacuum pump.
Fully open the handle Lo of manifold gauge.
Operate the vacuum pump to evacuate air from the system until 76cmHg.
Close the handle Lo of manifold gauge.
Fully open the valve stem of the packed valves.
Remove the charging hose from the service port.
Securely tighten caps of packed valve.
-76 cmHg
Handle Lo Handle Hi
Charge hose Charge hose
Vacuum pump
Packed valve
Manifold valve
Compound gauge Pressure meter
4.5 LEAKAGE TEST
Φ6.35mm Φ9.52mm 525 10 15/12 g/m
Model
(38QUS)
009/012
Φ15.88mm
060
024/030
036/048 Φ9.52mm
Φ9.52mm
Φ9.52mm
Φ15.88mm
Φ15.88mm
5
5
5
40
50
65 30
25
20 30/24 g/m
Φ12.7mm018 Φ6.35mm 530 20 15/12 g/m
30/24 g/m
30/24 g/m
NOTE: 1) Please use tools for R410A/R32 system respectively;
2) When the pipe length is over 5m, the additional refrigerant should be added according to the
piping length.
GB

7GB-17
5. WIRING
All the electrical connections must be carried out by qualified installers and all the wirings must be
connected according to the wiring diagram.
Make ground connection prior to any other electrical connections.
All power sources must be turned off before wiring work and do not turn on the power until you have
made sure all the wirings have been safety checked.
A main switch and circuit breaker or fuse must be installed, the capacity should be above 1.5 times of
maximum current in circuit.
An individual branch circuit and single socket used only for this appliance must be available.
Wire cross section is depending on the rated current and national, state and local electrical wiring
code. Consult local building codes and National electrical code for special requirement.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
The unit must be connected to the main power supply by means of a circuit breaker or a switch with a
contact separation of at least 3mm in all poles. Installation of a residual current device (RCD) having
a rated residual operating current not exceeding 30mA is advisable.
CAUTION
Power supply and connecting wires specification.
Wiring figure
Model(Btu/h) 9k/12k
H07RN-F; 3×2.5mm2
Power Cord(Field Supply)
Indoor/outdoor connecting wiring
(Field Supply)
Power
Supply
Phase 1-Phase
220-240V~ 50Hz
Frequency and volt
10.0A
Rated Current
Fuse Rating(Field Supply) 20A
H07RN-F; 4×1.5mm2
Ground wiring
Gr ou nd wiring
Power supply
Switch/Fuse
Power Cord
High voltage wiring
(Power supply)
Signal line
Indoor
Unit
Outdoor
Unit
18k
H07RN-F; 3×2.5mm2
1-Phase
220-240V~ 50Hz
11.0A
20A
H07RN-F; 4×1.5mm2
24k
H07RN-F; 3×2.5mm2
1-Phase
220-240V~ 50Hz
16.0A
25A
H07RN-F; 4×2.5mm2
5.1 POWER FROM OUTDOOR SIDE (For QUS009~024)

GB-18
5. WIRING
5.2 INDEPENDENCE POWER SUPPLY (For QUS030~060)
Ground wiring
Gr ou nd w iri ng
Power supply
Switch/Fuse
Power Cord
Signal line (Low voltage)
Indoor
Unit
Outdoor
Unit
Wiring figure
Power supply
Switch/Fuse
Power Cord
Power supply and connecting wires specification
Model(Btu/h) 30k
H05VV-F;
3×1.0mm2
Power Cord(Field Supply)
Indoor/outdoor connecting wiring
(Field Supply)
Indoor
Phase 1-Phase
Frequency and volt
2.0A
Rated Current
Fuse Rating(Field Supply) 10A
Shielded wire;
2×0.2mm2
H05VV-F;
3×1.0mm2
220-240V~ 50Hz
2.0A
10A
H05VV-F;
3×1.0mm2
2.0A
10A
H07RN-F;
3×2.5mm2
Power Cord(Field Supply)
Outdoor
Phase 1-Phase
220-240V~ 50Hz 220-240V~ 50Hz
Frequency and volt
19.0A
Rated Current
Circuit Breaker(Field Supply)
50A
H07RN-F;
3×4.0mm2
1-Phase
220-240V~ 50Hz
23.0A
50A
H07RN-F;
3×4.0mm2
1-Phase
26.5A
70A
Shielded wire;
2×0.2mm2
Shielded wire;
2×0.2mm
2
36k 48k
GB

5. WIRING
Separate the low voltage wiring (signal wire) and high voltage wiring (power supply wiring) at least 0.5m
so that they do not pass through the same place together. Proximity may cause electrical interference,
malfunctions, and breakage.
CAUTION
GB-19
220-240V~ 50Hz
H05VV-F;
3×1.0mm2
2.0A
10A
H07RN-F;
5×2.5mm2
3-Phase
14.0A
32A
Shielded wire;
2×0.2mm
2
Model(Btu/h)
Power Cord(Field Supply)
Indoor/outdoor connecting wiring
(Field Supply)
Indoor
Phase
Frequency and volt
Rated Current
Fuse Rating(Field Supply)
H05VV-F;
3×1.0mm2
1-Phase
2.0A
10A
Power Cord(Field Supply)
Outdoor
Phase
Frequency and volt
Rated Current
Circuit Breaker(Field Supply)
H07RN-F;
5×2.5mm2
3-Phase
380-415V 3N~ 50Hz
10.0A
25A
Shielded wire;
2×0.2mm2
H05VV-F;
3×1.0mm2
1-Phase 1-Phase
2.0A
10A
H07RN-F;
5×2.5mm2
3-Phase
13.0A
32A
Shielded wire;
2×0.2mm
2
36k(3N) 48k(3N) 60k(3N)
NOTE OF FUSE SPECIFICATIONS:
(applicalbe to units adpot R32 refrigerant only, and the fuse is made of ceramic.)
1. The specification of outdoor unit fuse is T20A/250VAC(for <24000Btu/h unit), T30A/250VAC(for
>24000Btu/h unit )
2. The specification of indoor unit fuse is T5A/250VAC, T10A/250VAC.