Haier AW12LC2VHA, AB18SC2VHA, AD12SL2VHA, AW18LC2VHA, AD18SL2VHA Installation Manual
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Installation Manual
Ductless Split Air Conditioner
Indoor
AW12LC2VHA
AW18LC2VHA
AB12SC2VHA
AB18SC2VHA
AD12SL2VHA
AD18SL2VHA
Outdoor
1U12LC2VHA
1U18LC2VHA
1U12LC2VHA
1U18LC2VHA
1U12LC2VHA
1U18LC2VHA
Table of Contents
Outdoor Unit Installation and Indoor Unit Installation – Wall Mount . . . . . . . . . . . . . . . . . 1-8
Indoor Unit Installation - Cassette
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-14
Indoor Unit Installation - Slim Duct. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-20
INSTALLATION
24k F
or: 09k
ENGLISH
Required Tools for Installation
• Drill
• Wire Snipper
• Hole Saw 2 3/4”
• Vacuum pump
• Soap-and-water solution or gas leakage
detector
• Torque wrench
• 17mm, 22mm, 26mm
• Tubing cutter
• Flaring tool
• Razor knife
• Measuring tape
• Level
• Micron gauge
• Nitrogen
• Mini-Split AD-87 Adapter (1/4” to 5/16”)
• A - Non-adhesive Tape
• B - Adhesive Tape
• C - Saddle (L.S.) with screws
• D - Electrical wiring
• E - Drain hose (Included)
• F - Insulation
• G - Piping hole cover (Included)
Step 1 - Preparation
Procedure for Selecting the Location
• Choose a place solid enough to bear the
weight and vibration of the unit and where
the operation noise will not be amplified.
• Choose a location where the hot air
discharged from the unit or the operation
noise and will not cause a nuisance to the
neighbors of the user.
• There must be sufficient space for
carrying the unit into and out of the site.
• There must be sufficient space for air
passage and no obstructions around the
air inlet and air outlet.
• The site must be free from the possibility
of flammable gas leakage in a nearby
place.
• Locate the unit to avoid noise and
discharged hot air will not annoy the
neighbors.
• Install units, power cords and inter-unit
cables at least 10ft away from television
and radio sets. This is to prevent
interference to images and sounds.
(Noise may be heard even if they are more
than 10ft away depending on radio wave
conditions.)
• Since drain flows out of the outdoor unit,
do not place anything under the unit that
must be kept away from moisture.
Note:
1) Cannot be installed hanging from ceiling
or stacked.
2) If installing on a high place such as a roof,
with a fence or guard rail around it.
3) If there is a potential for accumulated
snow to block the air inlet or heat exchanger, install the unit on a higher base.
4) R-410A refrigerant is a safe, nontoxic and
nonflammable refrigerant. However, if
there is a concern about a dangerous level
of refrigerant concentration in the case of
refrigerant leakage, add extra ventilation.
5) Avoid installing the outdoor unit where
corrosive gases, such as sulfur oxides, ammonia, and sulfurous gas, are produced. If
unavoidable, consult with an installation
specialist about using a corrosion-proof or
anti-rust additive to protect the unit coils.
This picture is for reference only. Your product may look
different. Read this manual before installation. Explain the
operation of the unit to the user according to this manual.
Outdoor unit mounting
dimensions (Unit: mm/inch)
For:
12k 18k
X
Y
X
5 1/2”
12k
140
4 7/16”
18k
113.5
Mounting the Outdoor Unit
•
Mount the unit to concrete or a block
with bolts (10mm) and nuts firmly and
horizontally.
•
When mounting the unit to a wall or
roof, take strong winds and other
environmental conditions into
consideration when securing.
•
If vibrations effect the house, mount
the unit using a vibration-proof mat.
mm
mm
19 11/16”
500
22 15/16”
583
Clearances of Indoor and Outdoor Units
The models adopt HFC free refrigerant R410A
Y
mm
mm
Z
X
Z
10 1/16”
256
mm
12 9/16”
319.5
mm
more than 4 in.
more than
4 in.
Arrangement of piping
directions
Rear left
Left
The marks from A to
G
in the figure are the
parts numbers.
The distance between
the indoor unit and the
floor should be more
than 6.5 ft.
Below
more than
Rear
right
Right
more than 8 in.
24 in.
Attention must be paid to
the rising up of drain hose
more than 4 in.
A
more than
6 in.
more than 10 in.
G
F
C
D
E
INSTALLATION
P
AGE
3
Step 2.5A
ENGLISH
Step 2 - Installation of the Indoor Unit
Attaching the Mounting Plate to the Wall
2.1
Step 2.1
Using a stud sensor, locate and mark the stud positions in the
wall where the indoor unit is to be mounted.
2.2
Step 2.2
Place the mounting plate on the wall in the desired location
taking into account the minimum clearances necessary for
proper operation.
Using a level, verify the mounting plate is horizontal and mark
the screw locations.
2.3
Step 2.3
Screw the mounting plate to the wall.
The piping for the indoor unit may be routed to the unit from
one of several directions. Left, Left Rear, Right, Right Rear, or
Below (Illustration 1).
2.4
Step 2.4
Knockouts are provided on the case for Left, Right, and Right
Below.
Drilling the hole through the wall for left rear or right rear
installation
2.5
Step 2.5A & 2.5B
Measure and mark the location where the piping hole is to be
drilled.
2.6
Step 2.6
Drill the piping hole using a hole saw of the correct diameter.
Angle the drill with a downward pitch to the outside wall so
that the outside hole will be ¼” lower than the inside hole,
giving the hole the proper angle for condensate drainage.
2.7
Step 2.7
Install the piping hole cover flange at the hole opening on the
inside wall.
NOTE: The cover flange may require modification to fit
properly behind the wall unit housing.
2.8
Step 2.8A & 2.8B
Bundle the refrigerant piping, drain piping and wiring with
tape and pass the bundle through the piping hole.
NOTE: When bundling the power cable, leave sufficient length
available in the indoor unit to make the connections to the
terminal block.
Step 2.1
Step 2.2
Step 2.3
Step 2.4
Step 2.5B
Step 2.6
Step 2.7
Step 2.8A
Piping Exit Options
Step 2.8B
Rear left
Left
Rear
right
Right
Below
Illustration 1
INSTALLATION
Step 2.9
ENGLISH
Mounting the Indoor Unit Onto the Wall Plate
2.9
Step 2.9
With the top of the indoor unit closer to the wall, hang the
indoor unit on the upper hooks of the mounting plate. Slide
the unit slightly side to side to verify proper placement of the
indoor unit on the mounting plate. Rotate the lower portion
of the indoor unit to the mounting plate, and lower the unit
onto the lower hooks of the mounting plate. (Illustration 2)
Verify the unit is secure.
2.10
Step - 2.10
Slightly raise the entire unit vertically, pull the lower portion
of the unit off the lower hooks of the mounting plate and
away from the wall, then lift the upper portion of the unit off
the upper hooks of the wall plate.
Electrical Connections for the Indoor Unit
2.11
Step - 2.11A & 2.11B
To make the electrical connections for the indoor unit, two
cover plates must be removed. Raise the front cover to
access the screws to remove these covers.
2.13
Step - 2.13
Access the four conductor cable through the cover plate
opening and make the wiring connections noting the wire
color used on each terminal. The color of each wire must
match the same positions on the terminal block of the
outdoor unit. (Illustration 3)
Failure to wire the system correctly may lead to improper
operation or component damage.
2.14
Step - 2.14A & 2.14B
After the terminal block wiring is completed, replace both
cover plates.
Attaching Drain Elbow to Outdoor Unit
(Heat Pump models only)
3.1
Step - 3.1
If attaching the supplied drain elbow to the outdoor unit,
do so prior to attaching the refrigerant lines and wiring.
Extension piping to attach to this fitting is field supplied.
Step 3 - Installation of the Outdoor Unit
Step 2.10
mounting plate
Illustration 2
Step 2.11A
Step 2.11B
Step 2.12
Indoor unit
Step 2.13A
3wire 14AW G
Control Wiring
Step 2.13B
Illustration 3
Step 3.1
Step 3.2
Outdoor unit
1
(
N
)
2
(L)
3
(
C
Power
Wiring
)
1
(
N
)
2
(
L)
3
(C)
Electrical Connections for the Outdoor Unit
3.2
Step - 3.2
Remove the cover plate of the outdoor unit to expose the
terminal block connections.
INSTALLATION
P
AGE
5
3.3
Step -
3.3
may
lead to
improper
operation
or
component
damage.
Step 3.3
Step 3.4
3.4
Step -
3.4
Replace
the cover
plate.
Step 4 -
Int
erconnec
ting
the Indoor
and
Out
door
Units
CAUTION
Outdoor unit
B
Indoor unit
B
A
Indoor unit
A
Outdoor unit
Oil trap
B
Indoor unit
A
●
ENGLISH
Connect the wiring for both the power source and indoor
wiring.
Wire the system according to applicable national / local
codes.
Verify that the wiring connections for the indoor unit match
wire for wire.
(1-1, 2-2, 3-3, Gnd-Gnd). Failure to wire the system correctly
*See Steps 2.11 - 2.13 & 3.2 - 3.4 for connecting the
electrical.
Piping
The standard lineset length is 25ft. If the installation length is
different, adjust the refrigerant charge by .2 oz / ft. for the 9K,
12K, 18K, and 24K model. (Illustration 4)
Cut the lineset to length, flare and attach the piping to the
outdoor unit valves.
Torque the fittings to the specifications shown in the torque
chart.
4.1
Step - 4.1
Refrigerant piping connections for the mini-split system are
made utilizing flare connections. Follow standard practices
for creating pipe flares. When cutting and reaming the tubing,
use caution to prevent dirt or debris from entering the tubing.
Remember to place the nut on the pipe before creating the
flare.
4.2
Step - 4.2
To join the lineset piping together, directly align the piping
flare to the fitting on the other pipe, then slide the nut onto
the fitting and tighten. Misalignment may result in a leaking
connection.
2.17
Step - 4.3
Two wrenches are required to join the flare connections, one
standard wrench, and one torque wrench. See Table 1 for the
specific torque per piping diameter.
Half union
Spanner
Outdoor unit
Step 4.1
Torque wrench
Step 4.3
Flare nut
Max. Elevation: A Max
= 32ft / 10m (09k / 12k)
= 50ft / 15m (18k / 24k)
●
In case the height of A is more than
15ft / 5m, an oil trap should be
installed every 16-23ft /5-7m
●
Max. Length: B Max
= 50ft / 15m (09k / 12k)
= 80ft / 25m (18k / 24k)
Illustration 4
Step 4.2
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Pipe Diameter(ǿ) Fastening torque
Liquid side6.35mm(1/4") 18N.m/13.3Ft.lbs
Liquid/Gas side9.52mm(3/8") 42 N.m/30.1Ft.lbs
Gas side 12.7mm(1/2") 55N.m/40.6Ft.lbs
Gas side 15.88mm(5/8") 60 N.m/44.3Ft.lbs
Table 1
INSTALLATION
Step 5.4B Step 5.5A
ENGLISH
Step 5 - Leak Test and Evacuation
Leak Test
Hazard of Explosion! Never use an open flame to detect gas
leaks. Explosive conditions may occur. Use a leak test solution
or other approved methods for leak testing. Failure to follow
recommended safe leak test procedures could result In death
or serious injury or equipment or property damage.
Use only dry nitrogen with a pressure regulator for
pressurizing unit. Do not use acetylene, oxygen or
compressed air or mixtures containing them for pressure
testing. Do not use mixtures of a hydrogen containing
refrigerant and air above atmospheric pressure for pressure
testing as they may become flammable and could result in
an explosion. Refrigerant, when used as a trace gas should
only be mixed with dry nitrogen for pressurizing units. Failure
to follow these recommendations could result in death or
serious injury or equipment or property damage.
5.1
Step - 5.1
Using a tank of nitrogen with attached regulator, charge the
system with 500 PSIG of dry nitrogen. Use adapter AD-87
(field supplied) to connect to the valve. Check for leaks at the
flare fittings using soap bubbles or other detection methods.
If a leak is detected, repair and recheck. If no leaks are
detected, proceed to evacuate the system.
5.2
Step - 5.2
Attach a manifold gauge, micron gauge, and vacuum pump
to the suction line port using adapter AD-87 (field supplied).
(Illustration 5)
Evacuate the system to 350 microns.
Close the vacuum pump valve and check the micron
gauge. If the gauge rises above 500 microns in 60 seconds,
evacuation is incomplete or there is a leak in the system. If
the gauge does not rise above 500 microns in 60 seconds,
evacuation is complete.
5.3
Step - 5.3
Remove the adapter and hose connection from the suction
line port, and replace the cap.
5.4
Step - 5.4A & 5.4B
Remove the cap from the liquid line valve. Using the hex
wrench, open the valve, then replace and tighten the cap.
5.5
Step - 5.5A & 5.5B
Remove the cap from the suction line valve. Using the hex
wrench, open the valve, then replace and tighten the cap.
5.6
Step - 5.6
Wrap the lineset, drain line, and wiring starting at the bottom
of the bundle with an overlap type wrap, concluding at the
System Evacuation
Step 5.1
Step 5.2
Step 5.3
Step 5.4A
Step 5.5B
Step 5.6
Illustration 5
INSTALLATION
P
AGE
7
piping
hole.
Use a sealant
to
seal the piping
hole opening
(Illustration
6)
Less than
Verify
the condensate
drain
line has a constant
pitch
resulting
in
the f
ailure
of
the condensate
to exit the piping.
It
becomes
The end is
imm-
It
waves.
The gap with
the There is the bad
ground is too small
smell
from a sewer
Illustration
6
Step 6 -
Charging
charging.
The standard
lineset
length
is
25ft.
If
the installation
System Test
Contains
fluorinated
gree
nhouse
gases
R410A
1
1= oz
B
2= oz
C
1+2=
oz
D
F E
ENGLISH
to prevent weather elements from entering the building.
5cm
downward for proper water flow. There should be no kinks
or rises in the tubing which may cause a trapping effect
See Steps 5.2 - 5.5 for evacuating the system prior to
length is different, adjust the refrigerant charge by .2 oz / ft.
for the 9K, 12K, 18K, and 24K model. (Step 4 - Illustration 4)
Refrigerant Charge Label
This product contains fluorinated greenhouse gases covered
by the Kyoto Protocol. Do not vent into the atmosphere.
Refrigerant type: R410A
GWP* value: 1975
GWP = global warming potential
Please fill in with indelible ink,
• 1 the factory refrigerant charge of the product
• 2 the additional refrigerant amount charged in the field and
• 1+2 the total refrigerant charge on the refrigerant charge
label supplied with the product.
The filled out label must be adhered in the proximity of the
product charging port (e.g. onto the inside of the stop valve
cover).
A - contains fluorinated greenhouse gases covered by the
Kyoto Protocol
B - factory refrigerant charge of the product: see unit name
plate
C - additional refrigerant amount charged in the field
D - total refrigerant charge
E - outdoor unit
F - refrigerant cylinder and manifold for charging
high midway.
ersed in water.
Please kindly explain to our customers how to operate
through the instruction manual.
Check Items for Test Run
Put check mark √ in boxes
No gas leak from linesets?
Are the linesets insulated properly?
Are the connecting wirings of indoor and outdoor firmly
inserted to the terminal block?
Is the connecting wiring of indoor and outdoor firmly
fixed?
Is condensate draining correctly?
Is the ground wire securely connected? Is the indoor unit
securely fixed?
Is power source voltage correct according to local code?
Is there any noise?
Is the lamp normally lighting?
Are cooling and heating (when in heat pump) performing
normally?
Is the operation of room temperature sensor normal?
covered by the Kyoto Protocol
2
A
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