Carrier 42QHE User manual

WALL MOUNTED AIR CONDITIONER

38QHE18D8SH
42QHE18D8SH
38QHE12D8SH
42QHE12D8SH
38QHE09D8SH42QHE09D8SH
38QHE24D8SH
42QHE24D8SH
Rated Voltage & Hz
220-240V~
50/60Hz
Indoor Unit Outdoor Unit

Page 17 
Accessories
The air conditioning system comes with the following accessories. Use all of the installation parts
and accessories to install the air conditioner. Improper installation may result in water leakage,
electrical shock and fire, or cause the equipment to fail. The items are not included
with the air conditioner must be purchased separately.
Magnetic ring and belt
Varies by model
1 2 3
(if supplied ,please refer to
the wiring diagram to install
it on the connective cable. )
Pass the belt through
the hole of the Magnetic
ring to fix it on the cable
Name
Shape Quantity(PC)
(Need to be installed on
the back of main air filter
by the authorized
technician while installing
the machine)
Mounting plate
fixing screw
Remote controller
Fixing screw for
remote controller
holder(optional)
Remote controller
holder(optional)
Drain joint
(for cooling &
heating models)
Seal
(for cooling &
heating models)
Mounting plate
Manual
Parts you must purc hase
separately. Consult the dealer
about the proper pipe size of
the unit you purchased.
Connecting pipe
assembly
Liquid side
Gas side
Φ6.35( 1/4i n)
Φ9.52(3/8in)
Φ9.52(3/8in)
Φ12.7(1/2in)
Φ16( 5/8in)
Φ19( 3/4in)
Accessories
2-3
1
1
1
Anchor
1
2
1
2
Battery
Small Filter
1~2
(depending
on models)
5~8
(depending
on models)
5~8
(depending
on models)
Name of Accessories Name of AccessoriesQ’ty(pc) Shape Q’ty(pc) Shape
Humidity
Boos t
FROM EDGE TO HOLE CENTER:50mm
FROM EDGE TO HOLE CENTER:100mm
150
100 100
100
50
50 50
2
2
2
4
44
6
RECOMMAND
LIQUID GAS
BUBBLE
LEVEL
mm inch
mm
inch

Page 18 
Installation
Overview
Installation Summary - Indoor Unit
Select Installation Location
Attach Mounting Plate
Determine Wall Hole Position
123
Drill Wall Hole
4
12cm
(4.75in)
2.3m (90.55in)
12cm
(4.75in)
Mount Indoor Unit
STEP 8
Wrap Piping and Cable
(not applicable for some locations in North America )
Connect Piping
Prepare Drain Hose
Connect Wiring
(not applicable for some
locations in North America )
456
78
9
Distance from ceiling is determinded
by the installation method.
FROM EDGE TO HOLE CENTER:50mm
FROM EDGE TO HOLE CENTER:100mm
150
100 100
100
50
50 50
2
2
2
4
44
6
RECOMMAND
LIQUID GAS
BUBBLE
LEVEL
mm inch
mm
inch


Page 19

NOTE ON ILLUSTRATIONS
Illustrations in this manual are for explanatory purposes. The actual shape of your indoor
unit may be slightly different. The actual shape shall prevail.
NOTE: The installation must be performed in accordance with the requirement of local and
national standards. The installation may be slightly different in different areas.
Wall Mounting Plate
Power Cable (Some Units)
Refrigerant Piping
Signal Cable
Remote Controller
Drainage Pipe
Louver
Remote Controller Holder
(Some Units)
Air filter(pull it out)
Front Panel
Outdoor Unit Power Cable
(Some Units)
1
2
3
4
5
6
7
8
9
10
11
（1） （2）
1
2
3
4
6
7
89
10
11
Air-break switch
3
1
2
4
6
7
8
11
5
Unit Parts
Unit Parts
5
Humidity
Boos t

Page 20 
Indoor Unit
Installation
Installation Instructions – Indoor unit
PRIOR TO INSTALLATION
Before installing the indoor unit, refer to the
label on the product box to make sure that the
model number of the indoor unit matches the
model number of the outdoor unit.
Step 1: Select installation location
Before installing the indoor unit, you must
choose an appropriate location. The following
are standards that will help you choose an
appropriate location for the unit.
Proper installation locations meet the
following standards:
Good air circulation
If no need the back holder to prop up
the unit:
Finishing the pipe and cable connections
before mount the indoor unit on the wall.
If the instllation height is limited, 5cm from
the ceiling is allowable, but this can lower
product performance. To ensure enough
space to install and remove the top air filter,
keep at least 10cm or more from the ceiling.
Need the back holder to prop up the unit:
If connecting pipe and cable with front panel
open, the minimum distance from ceiling is
22cm or more, if connecting pipe and cable
without front panel(remove it) , the minimum
distance from ceiling is 11cm or more.
Convenient drainage
Noise from the unit will not disturb other
people
Firm and solid—the location will not vibrate
Strong enough to support the weight of the
unit
A location at least one meter from all other
electrical devices (e.g., TV, radio, computer)
DO NOT install unit in the following
locations:
Near any source of heat, steam, or
combustible gas
Near flammable items such as curtains or
clothing
Near any obstacle that might block air
circulation
Near the doorway
In a location subject to direct sunlight
NOTE ABOUT WALL HOLE:
If there is no fixed refrigerant piping:
While choosing a location, be aware that you
should leave ample room for a wall hole (see
Drill wall hole for connective piping step)
for the signal cable and refrigerant piping
that connect the indoor and outdoor units.
The default position for all piping is the right
side of the indoor unit (while facing the unit).
However, the unit can accommodate piping to
both the left and right.






Refer to the following diagram to ensure
proper distance from walls and ceiling:
NOTE:
Step 2: Attach mounting plate to wall
The mounting plate is the device on which you
will mount the indoor unit.
Remove the screw that attaches the mounting
plate to the back of the indoor unit.
Secure the mounting plate to the wall with
the screws provided. Make sure that mounting
plate is flat against the wall.
12cm (4.72in)
or more
2.3m (90.55in) or more
12cm (4.72in)
or more
Distance from ceiling is determinded
by the installation method.
NOTE FOR CONCRETE OR BRICK WALLS:
If the wall is made of brick, concrete, or similar
material, drill 5mm-diameter (0.2in-diameter)
holes in the wall and insert the sleeve anchors
provided. Then secure the mounting plate to
the wall by tightening the screws directly into
the clip anchors.
Screw
Indoor Unit Installation


Page 21

Indoor Unit
Installation
Model B
Model C
Model A
Indoor unit outline
Unit: mm(inch)
Step 3: Drill wall hole for connective piping
1.
Determine the location of the wall hole based
CAUTION: The Bubble level on the mounting
plate can’t be removed. If it is broken, make
sure to clean up the leaking liquid.
Vertical direction
ruler
Horizontal direction ruler
on the position of the mounting plate. Refer
to Mounting Plate Dimensions.
Wall
Indoor Outdoor
mm7-5
(0.2-0.275in)
Fig.3.2
MOUNTING PLATE DIMENSIONS
Different models have different mounting plates.
For the convenience of installation, there are
bubble level, carved dimensions on the
mounting plate. Please install the plate and drill
wall hole according to the information of the
mounting plate. See the figures below.
Correct orientation of Mounting Plate
2. Using a 65mm (2.5in) or 90mm(3.54in)
(depending on models )core drill, drill a
hole in the wall. Make sure that the hole
is drilled at a slight downward angle, so
that the outdoor end of the hole is lower
than the indoor end by about 5mm to
7mm (0.2-0.275in). This will ensure proper
water drainage.
3. Place the protective wall cuff in the hole.
This protects the edges of the hole and
will help seal it when you finish the
installation process.
CAUTION
When drilling the wall hole, make sure
to avoid wires, plumbing, and other
sensitive components.
Φ
Φ
NOTE: When the gas side connective pipe is
16mm(5/8in) or more, the wall hole should
be 90mm(3.54in).
FROM EDGE TO HOLE CENTER:50mm
FROM EDGE TO HOLE CENTER:50mm
FROM EDGE TO HOLE CENTER:95mm
FROM EDGE TO HOLE CENTER:70mm
150
100 100
965(38)
795(31)
50(1.9)
95(3.7)
120(4.7)
570.7(22.5)
70(2.8)
1140(44.8)
50(1.9)
pipe hole
65(2.5)
Φ
pipe hole
65(2.5)
Φ
pipe hole
65(2.5)
Φ
pipe hole
65(2.5)
Φ
pipe hole
65(2.5)
50(1.9)
Φ
pipe hole
65(2.5)
490(19.3)
425(16.7)
322(12.7) 295(11.6)
370(14.6)
50(1.9)
40(1.6)
40(1.5)
60(2.4)
51(2.0)
100
50
50 50
2
2
2
4
44
6
RECOMMAND
LIQUID GAS
BUBBLE
LEVEL
BUBBLE
LEVEL
mm inch
150
100
50 2
4
6
RECOMMAND
mm inch
mm
inch
100 100
50 50
2
2
44
LIQUID GAS
mm
inch
FROMEDGE TO HOLE CENTER:50mm
FROMEDGE TO HOLE CENTER:100mm
150
100 100
100
50
50 50
2
2
2
4
44
6
RECOMMAND
LIQUID GAS
BUBBLE
LEVEL
mm inch
mm
inch
FROMEDGE TO HOLE CENTER:50mm
FROMEDGE TO HOLE CENTER:100mm
150
100 100
100
50
50 50
2
2
2
4
44
6
RECOMMAND
LIQUID GAS
BUBBLE
LEVEL
mm inch
mm
inch
FROMEDGE TO HOLE CENTER:50mm
FROMEDGE TO HOLE CENTER:100mm
150
100 100
100
50
50 50
2
2
2
4
44
6
RECOMMAND
LIQUID GAS
BUBBLE
LEVEL
mm inch
mm
inch
BUBBLE
LEVEL
150
100
50 2
4
6
RECOMMAND
mm inch
100 100
50 50
2
2
44
LIQUID GAS
mm
inch
40(1.6)
Indoor unit outline
Indoor unit outline

Page 22 
Indoor Unit
Installation
If refrigerant piping is already embedded in
the wall, do the following:
Step 1:Hook the indoor unit on the mounting
plate:
Step 2: Prepare refrigerant piping:
Move to left or right
Model A
30-50mm
(1.18-1.95in)
30-50mm
(1.18-1.95in)
1. Keep in mind that the hooks on the mounting plate
are smaller than the holes on the back of the unit.
If you find that you don’t have ample room to connect
embedded pipes to the indoor unit, the unit can be
adjusted left or right by about 30-50mm (1.18-1.95in),
depending on the model.
CAUTION
Be extremely careful not to dent or
damage the piping while bending them
away from the unit. Any dents in the
piping will affect the unit’s performance.
Step 4: Prepare refrigerant piping
The refrigerant piping is inside an insulating
sleeve attached to the back of the unit. You must
prepare the piping before passing it through the
hole in the wall. Refer to the Refrigerant Piping
Connection section of this manual for detailed
instructions on pipe flaring and flare torque
requirements, technique, etc.
NOTE ON PIPING ANGLE
Refrigerant piping can exit the indoor unit from
four different angles:
• Left-hand side
• Left rear
• Right-hand side
•
•
•
Right rear
When choose Left-hand side or Right-hand
side piping, please make sure that the pipes
come out horizontally so as not to affect the
lower panel installtion.
Refer to figures below for details.
1. Open and fix the position of the panel,
then, open the covers of the two lock
blocks, unscrew the screw showed in
the picture below, then hold both sides
of the lower panel in the place marked
“PULL”, pull it upwards to release the
buckles, then take the lower panel down.
Open the cover
and unscrew the
screw
NOTE ON PIPING CONNECTING
In some locations of US, a conduit tube
must be used to connect the cable.
To ensure an enough space for the pipes
running and the machine is against the
wall after installation, It is recommended
to attach the drain hose to the right-hand
side (when you’re facing the back of the unit).
AUTO COOL

Page 23 
Indoor Unit
Installation
Model B
Use the holder at the back
of the unit against on the
mounting plate to prop up
the unit
Open the cover
and unscrew the
screws
Unscrew the
screws
If there is no refrigerant piping embedded in
the wall, do the following:
Step 3. Connect drain hose and refrigerant
piping (refer to Refrigerant Piping Connection
section of this manual for instructions).
Step 4. Keep pipe connection point exposed to
perform the leak test (refer to Electrical Checks
and Leak Checks section of this manual).
Step 5. After the leak test, wrap the connection
point with insulation tape.
Step 6. Remove the bracket or wedge that is
propping with insulation tape.
Step 7. Using even pressure, push down on the
bottom half of the unit. Keep pushing down
until the unit snaps onto the hooks along the
bottom of the mounting plate.
1. Based on the position of the wall hole relative
to the mounting plate, choose the side from
which the piping will exit the unit.
2. If the wall hole is behind the unit, keep the
knock-out panel in place. If the wall hole is to
the side of the indoor unit, remove the plastic
knock-out panel from that side of the unit.
(See figure below). This will create a slot through
which your piping can exit the unit. Use
needle nose pliers if the plastic panel is too
difficult to remove by hand.
3.
Use scissors to cut down the length of the
insulating sleeve to reveal about 40mm (1.57in)
of the refrigerant piping. This serves two purposes:
•To facilitate the Refrigerant Piping
Connection process.
•To facilitage Gas Leak Checks and enable
you to check for dents
Knock-out Panel
(cut depending on the
actual size needed)
If need to cut the big size plastic
panel, cut as shown above.
2. Use the holder at the back of the unit to
prop up the unit, giving you enough room
to connect the refrigerant piping, signal cable,
and drain hose.
4. Use the holder at the back of the unit to
prop up the unit, giving you enough room
to connect the refrigerant piping, signal cable,
and drain hose.
5. Connect the indoor unit’s refrigerant piping
to the connective piping that will join the
indoor and outdoor units. Refer to the
Refrigerant Piping Connection section
of this manual for detailed instructions.
6. Based on the position of the wall hole
relative to the mounting plate, determine the
necessary angle of your piping.
7. Grip the refrigerant piping at the base of the bend.
8. Slowly, with even pressure, bend the piping
towards the hole. Do not dent or damage the
piping during the process.

Page 24 
Indoor Unit
Installation
DO NOT kink the drain hose.
DO NOT create a water trap.
DO NOT put the end of drain hose in
water or a container that will collect water.
BEFORE PERFORMING ANY
ELECTRICAL WORK, READ THESE
REGULATIONS
1. All wiring must comply with local and national
electrical codes, regulations and must be
installed by a licensed electrician.
2. All electrical connections must be made according
to the Electrical Connection Diagram located on
the panels of the indoor and outdoor units.
3. If there is a serious safety issue with the power
supply, stop work immediately. Explain your
reasoning to the client, and refuse to install the
unit until the safety issue is properly resolved.
4. Power voltage should be within 90-110% of
rated voltage. Insufficient power supply can
cause malfunction, electrical shock, or fire.
5. If connecting power to fixed wiring, a surge
protector and main power switch should be
installed.
6. If connecting power to fixed wiring, a switch
or circuit breaker that disconnects all poles and
has a contact separation of at least 1/8in (3mm)
must be incorporated in the fixed wiring. The
qualified technician must use an approved
circuit breaker or switch.
7. Only connect the unit to an individual branch
circuit outlet. Do not connect another appliance
to that outlet.
8. Make sure to properly ground the air conditioner.
9. Every wire must be firmly connected. Loose
wiring can cause the terminal to overheat,
resulting in product malfunction and possible fire.
Do not let wires touch or rest against refrigerant
tubing, the compressor, or any moving parts
within the unit.
If the unit has an auxiliary electric heater, it must
be installed at least 1 meter (40in) away from
any combustible materials.
To avoid getting an electric shock, never touch
the electrical components soon after the power
supply has been turned off. After turning off
the power, always wait 10 minutes or more
before you touch the electrical components.
WARNING
BEFORE PERFORMING ANY ELECTRICAL
OR WIRING WORK, TURN OFF THE
MAIN POWER TO THE SYSTEM.
10.
11.
12.
Step 5: Connect drain hose
By default, the drain hose is attached to the left-
hand side of unit (when you’re facing the back
of the unit). However, it can also be attached to
the right-hand side. To ensure proper drainage,
attach the drain hose on the same side that your
refrigerant piping exits the unit.
NOTE: In some locations of US, if the machine
has installed the conduit panel, please choose
right-hand side drainage.
Wrap the connection point firmly with Teflon
tape to ensure a good seal and to prevent leaks.
Remove the air filter and pour a small amount
of water into the drain pan to make sure that
water flows from the unit smoothly.
NOTE ON DRAIN HOSE PLACEMENT
Make sure to arrange the drain hose
according to the following figures.
PLUG THE UNUSED DRAIN HOLE
To prevent unwanted leaks
you must plug the unused
drain hole with the rubber
plug provided.
CORRECT
Make sure there are no kinks
or dent in drain hose to ensure
proper drainage.
NOT CORRECT
Kinks in the drain hose
will create water traps.
NOT CORRECT
Do not place the end of the
drain hose in water or in
containers that collect water.
This will prevent proper
drainage.
NOT CORRECT
Kinks in the drain hose
will create water traps.

Page 25 
Indoor Unit
Installation
1. Open and fix the position of the panel,
then, open the covers of the two lock
blocks, unscrew the screw , then hold
both sides of the lower panel in the place
marked “PULL”, pull it upwards to release
the buckles, then take the lower panel
down(please refer to Page 22-23).
2. Open the wire box cover to connect the cable.
First remove the knok-out panel to create a
slot through whick the conduit tube can
install. Then make the cable through the
conduit tube and connect to the indoor unit.
First open the front panel, then remove
the lower panel.
Terminal
block
open the
Wire cover
Rat baffle(some units)
Knock-out
panel
Cable
clamp
NOTE: If the size of the cable is too big, remove
the middle small plastic knock-out panel to create
a slot through which the cable can exit. If you want
to remove the chassis or drain hose, please remove
the rat baffle first.
WARNING
3.
Unscrew the cable clamp below the terminal
block and place it to the side.
4. Facing the back of the unit, remove the plastic
panel on the bottom left-hand side.
ALL WIRING MUST BE PERFORMED
STRICTLY IN ACCORDANCE WITH THE
WIRING DIAGRAM LOCATED ON THE
BACK OF THE INDOOR UNIT S FRONT
PANEL .
’
5.
Feed the signal wire through this slot, from
the back of the unit to the front.
6.
Facing the front of the unit, connect the wire
according to the indoor unit’s wiring diagram,
connect the u-lug and firmly screw each wire
to its corresponding terminal.
In North America
Step 6: Connect signal and power cables
The signal cable enables communication between
the indoor and outdoor units. You must first choose
the right cable size before preparing it for connection.
Cable Types
• Indoor Power Cable (if applicable):
H05VV-F or H05V2V2-F
• Outdoor Power Cable: H07RN-F or H05RN-F
• Signal Cable: H07RN-F
(Not applicable for North America)
NOTE: In North America, choose the cable type
according to the local electrical codes and regulations.
Minimum Cross-Sectional Area of
Power and Signal Cables (For reference)
Rated Current of
Appliance (A)
Nominal Cross-Sectional
Area (mm²)
> 3 and ≤6 0.75
> 6 and ≤10 1
> 10 and ≤16 1.5
> 16 and ≤25 2.5
> 25 and ≤32 4
> 32 and ≤40 6
CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, signal
cable, fuse, and switch needed is determined
by the maximum current of the unit. The
maximum current is indicated on the nameplate
located on the side panel of the unit. Refer to
this nameplate to choose the right cable, fuse,
or switch.
NOTE: In North America, please choose the
right cable size according to the Minimum
Circuit Ampacity indicated on the nameplate
of the unit.

Page 26 
Indoor Unit
Installation
CAUTION
DO NOT MIX UP LIVE AND NULL WIRES
This is dangerous, and can cause the air
conditioning unit to malfunction.
7. After checking to make sure every connection
is secure, use the cable clamp to fasten the
signal cable to the unit. Screw the cable clamp
down tightly.
8.
Replace the wire cover on the front of the
unit, and the plastic panel on the back.
DRAIN HOSE MUST BE ON BOTTOM
Make sure that the drain hose is at the bottom
of the bundle. Putting the drain hose at the
top of the bundle can cause the drain pan
to overflow, which can lead to fire or water
damage.
DO NOT INTERTWINE SIGNAL CABLE WITH
OTHER WIRES
While bundling these items together, do not
intertwine or cross the signal cable with any
other wiring.
2. Using adhesive vinyl tape, attach the drain
hose to the underside of the refrigerant pipes.
3. Using insulation tape, wrap the signal wire,
refrigerant pipes, and drain hose tightly
together. Double-check that all items are
bundled.
DO NOT WRAP ENDS OF PIPING
When wrapping the bundle, keep the ends
of the piping unwrapped. You need to access
them to test for leaks at the end of the
installation process (refer to Electrical Checks
and Leak Checks section of this manual)
NOTE ABOUT WIRING
THE WIRING CONNECTION PROCESS MAY
DIFFER SLIGHTLY BETWEEN UNITS AND
REGIONS.
Before passing the piping, drain hose, and the
signal cable through the wall hole, you must
bundle them together to save space, protect
them, and insulate them(This may not applicable
for some locations in US).
1. Bundle the drain hose, refrigerant pipes, and
signal cable as shown below:
Indoor Unit
Space behind unit
Refrigerant piping
Drain hose
Signal wire
Insulation tape
Step 7: Wrappping and cables
Step 8: Mount indoor unit
If you installed new connective piping
to the outdoor unit, do the following:
1. If you have already passed the refrigerant
piping through the hole in the wall, proceed
to Step 4.
2. Otherwise, double-check that the ends of the
refrigerant pipes are sealed to prevent dirt or
foreign materials from entering the pipes.
3. Slowly pass the wrapped bundle of refrigerant
pipes, drain hose, and signal wire through the
hole in the wall.
4. Hook the top of the indoor unit on the upper
hook of the mounting plate.
5. Check that unit is hooked firmly on mounting
by applying slight pressure to the left and
right-hand sides of the unit. The unit should
not jiggle or shift.
6. Using even pressure, push down on the
bottom half of the unit. Keep pushing down
until the unit snaps onto the hooks along the
bottom of the mounting plate.
7. Again, check that the unit is firmly mounted
by applying slight pressure to the left and the
right-hand sides of the unit.

Page 27 
Installation
Outdoor Unit
evoba)ni42(mc06
60cm (24in)
on right
30cm (12in)
on left
200cm (79in)
in front
30cm (12in)
from back wall
Installation Instructions – Outdoor unit
Step 1: Select installation location
Before installing the outdoor unit, you must
choose an appropriate location. The following are
standards that will help you choose an appropriate
location for the unit.
Proper installation locations meet the
following standards:
 Meets all spatial requirements shown in
Installation Space Requirements above.
 Good air circulation and ventilation
 Firm and solid—the location can support the
unit and will not vibrate
 Noise from the unit will not disturb others
Install the unit by following local codes and
regulations , there may be differ slightly
between different regions.
SPECIAL CONSIDERATIONS FOR EXTREME
WEATHER
If the unit is exposed to heavy wind:
Install unit so that air outlet fan is at a 90°
angle to the direction of the wind. If needed,
build a barrier in front of the unit to protect it
from extremely heavy winds.
See Figures below.
Strong
wind
Strong wind
Strong wind
If the unit is frequently exposed to heavy
rain or snow:
Build a shelter above the unit to protect
it from the rain or snow. Be careful not to
obstruct air flow around the unit.
If the unit is frequently exposed to salty air
(seaside):
Use outdoor unit that is specially designed to
resist corrosion.
Wind Baffle
 Protected from prolonged periods of direct
sunlight or rain
DO NOT
installunit in the following locations:
Near an obstacle that will block air inlets
and outlets
Near a public street, crowded areas, or
where noise from the unit will disturb others
Near animals or plants that will be harmed
by hot air discharge
Near any source of combustible gas
In a location that is exposed to large
amounts of dust
In a location exposed to a excessive amounts
of salty air

Outdoor Unit Installation
Where snowfall is anticipated, take
appropriate measures to prevent ice
buildup and coil damage.

Page 28 
Outdoor Unit
Installation
Step 2: Install drain joint(Heat pump unit only)
Before bolting the outdoor unit in place, you must
install the drain joint at the bottom of the unit.
Note that there are two different types of drain
joints depending on the type of outdoor unit.
If the drain joint comes with a rubber seal
(see Fig. A ), do the following:
1. Fit the rubber seal on the end of the drain joint
that will connect to the outdoor unit.
2. Insert the drain joint into the hole in the base
pan of the unit.
3. Rotate the drain joint 90° until it clicks in place
facing the front of the unit.
4. Connect a drain hose extension (not included)
to the drain joint to redirect water from the
unit during heating mode.
If the drain joint doesn’t come with a rubber
seal (see Fig. B ), do the following:
1. Insert the drain joint into the hole in the base
pan of the unit. The drain joint will click in
place.
2. Connect a drain hose extension (not included)
to the drain joint to redirect water from the
unit during heating mode.
Seal
Drain joint
(A) (B)
Base pan hole of
outdoor unit
Seal
IN COLD CLIMATES
In cold climates, make sure that the drain hose
is as vertical as possible to ensure swift water
drainage. If water drains too slowly, it can
freeze in the hose and flood the unit.
The outdoor unit can be anchored to the
ground or to a wall-mounted bracket with
bolt(M10). Prepare the installation base of the
unit according to the dimensions below.
A
W
B
D
Air inlet
Air outlet
Air inlet
W
H
Step 3: Anchor outdoor unit
UNIT MOUNTING DIMENSIONS
The following is a list of different outdoor
unit sizes and the distance between their
mounting feet. Prepare the installation base
of the unit according to the dimensions below.

Page 29 
Outdoor Unit
Installation
If you will install the unit on a wall-mounted
bracket , do the following:
1.Mark the position of bracket holes based on
dimensions chart.
2. Pre-drill the holes for the expansion bolts.
3. Place a washer and nut on the end of each
expansion bolt.
4. Thread expansion bolts through holes in
mounting brackets, put mounting brackets
in position, and hammer expansion bolts into
the wall.
5. Check that the mounting brackets are level.
6. Carefully lift unit and place its mounting feet
on brackets.
7. Bolt the unit firmly to the brackets.
8. If allowed, install the unit with rubber
gaskets to reduce vibrations and noise.
If you will install the unit on the ground or
on a concrete mounting platform, do the
following:
1. Mark the positions for four expansion bolts
based on dimensions chart.
2. Pre-drill holes for expansion bolts.
3. Place a nut on the end of each expansion bolt.
4. Hammer expansion bolts into the pre-drilled
holes.
5. Remove the nuts from expansion bolts, and
place outdoor unit on bolts.
6. Put washer on each expansion bolt, then
replace the nuts.
7. Using a wrench, tighten each nut until snug.
WARNING
WHEN DRILLING INTO CONCRETE, EYE
PROTECTION IS RECOMMENDED AT ALL
TIMES.
CAUTION
Make sure that the wall is made of solid brick,
concrete, or of similarly strong material. The
wall must be able to support at least four
times the weight of the unit.
Outdoor Unit Dimensions (mm)
W x H x D
Mounting Dimensions
Distance A (mm) Distance B (mm)
681x434x285 (26.8”x 17.1”x 11.2”) 460 (18.1”) 292 (11.5”)
700x550x270 (27.5”x 21.6”x 10.6”) 450 (17.7”) 260 (10.2”)
728x555x300 (28.7”x 21.8”x 11.8”) 452 (17.8”) 302(11.9”)
765x555x303 (30.1”x 21.8”x 11.9”) 452 (17.8”) 286(11.3”)
890x673x342 (35.0”x 26.5”x 13.5”)
946x810x420 (37.2”x 31.9”x 16.5”)
663 (26.1”)
673 (26.5”)
354 (13.9”)
403 (15.9”)
946x810x410 (37.2”x 31.9”x 16.1”) 673 (26.5”) 403 (15.9”)
720x495x270 (28.3”x 19.5”x 10.6”) 452 (17.8”) 255 (10.0”)
845x702x363 (33.3”x 27.6”x 14.3”) 540 (21.3”) 350 (13.8”)
700x550x275 (27.5”x 21.6”x 10.8”) 450 (17.7”) 260 (10.2”)
770x555x300 (30.3”x 21.8”x 11.8”) 487 (19.2”) 298 (11.7”)
800x554x333 (31.5”x 21.8”x 13.1”) 514 (20.2”) 340 (13.4”)
805x554x330 (31.7”x 21.8”x 12.9”) 511 (20.1”) 317 (12.5”)

Page 30 
Outdoor Unit
Installation
Step 4: Connect signal and power cables
The outside unit’s terminal block is protected by
an electrical wiring cover on the side of the unit.
A comprehensive wiring diagram is printed on
the inside of the wiring cover.
WARNING
1. Prepare the cable for connection:
PAY ATTENTION TO LIVE WIRE
While crimping wires, make sure you clearly
distinguish the Live (“L”) Wire from other wires.
7. Insulate unused wires with PVC electrical tape.
Arrange them so that they do not touch any
electrical or metal parts.
8. Replace the wire cover on the side of the unit,
and screw it in place.
2. Unscrew the electrical wiring cover and remove it.
3. Unscrew the cable clamp below the terminal
block and place it to the side.
4. Connect the wire according to the wiring
diagram, and firmly screw the u-lug of each
wire to its corresponding terminal.
5. After checking to make sure every connection is
secure, loop the wires around to prevent rain
water from flowing into the terminal.
6. Using the cable clamp, fasten the cable to the
unit. Screw the cable clamp down tightly.
1. Remove the wire cover from the unit by
loosening the 3 screws.
2. Dismount caps on the conduit panel.
3. Temperarily mount the conduit tubes(not
included) on the conduit panel.
4. Properly connect both the power supply and
low voltage lines to the corresponding
terminals on the terminal block.
5. Ground the unit in accordance with local codes.
6. Be sure to size each wire allowing several inches
longer than the required length for wiring.
7. Use lock nuts to secure the conduit tubes.
BEFORE PERFORMING ANY ELECTRICAL
OR WIRING WORK, TURN OFF THE MAIN
POWER TO THE SYSTEM.
WARNING
ALL WIRING WORK MUST BE PERFORMED
STRICTLY IN ACCORDANCE WITH THE
WIRING DIAGRAM LOCATED INSIDE OF
WIRE COVER OF THE OUTDOOR UNIT .
In North America
Cover
Screw
Wire Cover
Over 1.57in.(40mm)
Terminal block
Conduit panel
Connecting cable
Please select the appropriate through-hole according
to the diameter of the wire.
Three size hole: Small, Large, Medium
When the calbe is not fasten enough, use the
buckle to prop it up , so it can be clamped tightly.
Buckle
NOTE: If the cable clamp looks like the following,
please select the appropriate through-hole according
to the diameter of the wire.
USE THE RIGHT CABLE
Please choose the right cable refer to
“ Cable types” in page 25.
a. Using wire strippers, strip the rubber
jacket from both ends of cable to reveal
about 40mm (1.57in) of the wires inside.
b. Strip the insulation from the ends of the wires.
c. Using a wire crimper, crimp u-lugs on the
ends of the wires.
CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, signal cable,
fuse, and switch needed is determined by the
maximum current of the unit. The maximum
current is indicated on the nameplate located
on the side panel of the unit.
NOTE: In North America, please choose the right
cable size according to the Minimum Circuit
Ampacity indicated on the nameplate of the unit.

Page 31 
Note on Pipe Length
The length of refrigerant piping will affect the performance and energy efficiency of the unit. Nominal
efficiency is tested on units with a pipe length of 5 meters (16.5ft)(
In North America, the standard pipe
length is 7.5m (25’) . A minimum pipe run of 3 metres is required to minimise vibration & excessive noise.
In special tropical area, for the R290 refrigerant models, no refrigerant can be added and the maximum
length of refrigerant pipe should not exceed 10 meters(32.8ft).
Connection Instructions – Refrigerant Piping
Step 1: Cut pipes
When preparing refrigerant pipes, take extra
care to cut and flare them properly. This will
ensure efficient operation and minimize the
need for future maintenance.
1. Measure the distance between the indoor
and outdoor units.
Refer to the table below for specifications on the maximum length and drop height of piping.
When connecting refrigerant piping, do not let substances or gases other than the specified
refrigerant enter the unit. The presence of other gases or substances will lower the unit’s capacity,
and can cause abnormally high pressure in the refrigeration cycle. This can cause explosion and
injury.
2. Using a pipe cutter, cut the pipe a little longer
than the measured distance.
3. Make sure that the pipe is cut at a perfect 90°
angle.
Oblique Rough Warped
90°
DO NOT DEFORM PIPE
WHILE CUTTING
Be extra careful not to damage, dent, or
deform the pipe while cutting. This will
drastically reduce the heating efficiency
of the unit.
Maximum Length and Drop Height of Refrigerant Piping per Unit Model
Model Capacity (BTU/h) Max. Length (m) Max. Drop Height (m)
R410A,R32 Inverter Split Air
Conditioner
R22 Fixed-speed
Split Air Conditioner
R410A, R32 Fixed-speed
Split Air Conditioner
< 15,000
< 18,000
25 (82ft) 10 (33ft)
10 (33ft) 5 (16ft)
≥15,000 and < 24,000 30 (98.5ft) 20 (66ft)
20 (66ft)
≥24,000 and < 36,000 50 (164ft) 25 (82ft)
≥21,000 and < 35,000 10(33ft)
≥18,000 and < 21,000
≥18,000 and < 36,000
15 (49ft) 8(26ft)
8(26ft)< 18,000 20 (66ft)
25 (82ft) 10(33ft)
Refrigerant Piping Connection
Refrigerant
Piping
Connection

Page 32 
Refrigerant
Piping
Connection
6. Place flaring tool onto the form.
7. Turn the handle of the flaring tool clockwise
until the pipe is fully flared.
8. Remove the flaring tool and flare form, then
inspect the end of the pipe for cracks and
even flaring.
Step 4: Connect pipes
When connecting refrigerant pipes, be careful
not to use excessive torque or to deform the
piping in any way. You should first connect the
low-pressure pipe, then the high-pressure pipe.
MINIMUM BEND RADIUS
When bending connective refrigerant piping,
the minimum bending radius is 10cm.
≥10cm (4in)
Radius
Instructions for Connecting Piping to
Indoor Unit
1. Align the center of the two pipes that you will
connect.
Indoor unit tubing Flare nut Pipe
Max.
Step 2: Remove burrs
Burrs can affect the air-tight seal of refrigerant
piping connection. They must be completely
removed.
1. Hold the pipe at a downward angle to prevent
burrs from falling into the pipe.
2. Using a reamer or deburring tool, remove all
burrs from the cut section of the pipe.
Pipe
Reamer
Point down
Step 3: Flare pipe ends
Proper flaring is essential to achieve an airtight
seal.
1. After removing burrs from cut pipe, seal
the ends with PVC tape to prevent foreign
materials from entering the pipe.
2. Sheath the pipe with insulating material.
3. Place flare nuts on both ends of pipe. Make
sure they are facing in the right direction,
because you can’t put them on or change
their direction after flaring.
Flare nut
Copper pipe
4. Remove PVC tape from ends of pipe when
ready to perform flaring work.
5. Clamp flare form on the end of the pipe.
The end of the pipe must extend beyond the
edge of the flare form in accordance with the
dimensions shown in the table below.
PIPING EXTENSION BEYOND FLARE FORM
Outer Diameter of
Pipe (mm)
A (mm)
Min. Max.
Ø 6.35 (Ø 0.25”) 0.7 (0.0275”) 1.3 (0.05”)
Ø 9.52 (Ø 0.375”) 1.0 (0.04”) 1.6 (0.063”)
Ø12.7 ( Ø 0.5”) 1.0 (0.04”) 1.8 (0.07”)
Ø 16 ( Ø 0.63”)
Ø 19 ( Ø 0.75”)
2.0 (0.078”) 2.2 (0.086”)
2.0 (0.078”) 2.4 (0.094”)
Flare form
Pipe
A

Page 33 
Refrigerant
Piping
Connection
2. Tighten the flare nut as tightly as possible by
hand.
3. Using a spanner, grip the nut on the unit
tubing.
4. While firmly gripping the nut on the unit
tubing, use a torque wrench to tighten the
flare nut according to the torque values in the
Torque Requirements table below. Loosen
the flaring nut slightly, then tighten again.
Instructions for Connecting Piping to Outdoor Unit
USE SPANNER TO GRIP MAIN
BODY OF VALVE
Torque from tightening the flare nut can snap
off other parts of valve.
TORQUE REQUIREMENTS
Outer Diameter of Pipe
(mm)
Tightening Torque
(N•m) Flare dimension(B)
(mm) Flare shape
Ø 6.35 (Ø 0.25”) 8.4~8.7 (0.33~0.34”)
13.2~13.5 (0.52~0.53”)
16.2~16.5 (0.64~0.65”)
19.2~19.7 (0.76~0.78”)
23.2~23.7 (0.91~0.93”)
18~20(180~200kgf.cm)
32~39(320~390kgf.cm)
49~59(490~590kgf.cm)
57~71(570~710kgf.cm)
67~101(670~1010kgf.cm)
Ø 9.52 (Ø 0.375”)
Ø 12.7 (Ø 0.5”)
Ø 16 (Ø 0.63”)
Ø 19 ( Ø 0.75”)
1. Unscrew the cover from the packed valve on
the side of the outdoor unit.
2. Remove protective caps from ends of valves.
3. Align flared pipe end with each valve, and
tighten the flare nut as tightly as possible by
hand.
4. Using a spanner, grip the body of the valve.
Do not grip the nut that seals the service
valve.
5. While firmly gripping the body of the valve,
use a torque wrench to tighten the flare nut
according to the correct torque values.
6. Loosen the flaring nut slightly, then tighten
again.
7. Repeat Steps 3 to 6 for the remaining pipe.
DO NOT USE EXCESSIVE TORQUE
Excessive force can break the nut or damage the refrigerant piping. You must not exceed
torque requirements shown in the table above.
Valve cover
R0.4~0. 8
45 °±2
90 °
±4
B

Air Evacuation
Preparations and Precautions
Air and foreign matter in the refrigerant circuit can
cause abnormal rises in pressure, which can damage
the air conditioner, reduce its efficiency, and cause
injury. Use a vacuum pump and manifold gauge to
evacuate the refrigerant circuit, removing any
non-condensable gas and moisture from the system.
Evacuation should be performed upon initial
installation and when unit is relocated.
BEFORE PERFORMING EVACUATION

Check to make sure the connective pipes
between the indoor and outdoor units
are connected properly .
 Check to make sure all wiring is connected
properly.
Evacuation Instructions
Manifold Gauge
Compound
gauge
-76cmHg
Low pressure
valve
High pressure
valve
Pressure hose /
Charge hose
Charge hose
Vacuum
pump
Pressure gauge
Low pressure valve
1. Connect the charge hose of the manifold
gauge to service port on the outdoor unit’s
low pressure valve.
Connect another charge hose from the
manifold gauge to the vacuum pump.
Open the Low Pressure side of the manifold
gauge. Keep the High Pressure side closed.
Turn on the vacuum pump to evacuate the
system.
Run the vacuum for at least 15 minutes, or
until the Compound Meter reads -76cmHG
(-10 Pa).
2.
3.
4.
5.
5
6.
Close the Low Pressure side of the manifold
gauge, and turn off the vacuum pump.
7.
Wait for 5 minutes, then check that there
has been no change in system pressure.
8. If there is a change in system pressure, refer
to Gas Leak Check section for information
on how to check for leaks. If there is no
change in system pressure, unscrew the cap
from the packed valve (high pressure valve).
9.
Insert hexagonalwrench intothepacked valve
(high pressure valve) and openthe valve by
turning the wrench in a 1/4 counterclockwise
turn. Listen for gas to exit the system, then
close the valve after 5 seconds.
10. Watch the Pressure Gauge for one minute
to make sure that there is no change in
pressure. The Pressure Gauge should read
slightly higher than atmospheric pressure.
Flare nut
Cap
valve body valve stem
11. Remove the charge hose from the service port.
12. Using hexagonal wrench, fully open both the
high pressure and low pressure valves.
13. Tighten valve caps on all three valves (service
port, high pressure, low pressure) by hand.
You may tighten it further using a torque
wrench if needed.
OPEN VALVE STEMS GENTLY
When opening valve stems, turn the hexagonal
wrench until it hits against the stopper. Do not
try to force the valve to open further.
Air Evacuation
Page 34 