CONVERTIBLE TYPE AIR CONDITIONER
Operation & Installation
Manual
AC142ACERA
AC182ACERA
AC242ACERA
AC142ACEAA
AC182ACEAA
AC242ACEAA
No. 0010576952
C
Please read this operation manual before using the air conditioner.
Please keep this manual carefully and safely.
Contents
Cautions
Safety Precautions
Name of Parts
Cleaning and Care
Operation Tips
Installation
Installation Procedures
Trouble Shooting
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1-2
3
4
5
6
7
8-16
17-20
Cautions
Disposal of the old air conditioner
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.
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.
Disposal of the packaging of your new
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.
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.
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.
All the packaging materials employed in
the package of your new air conditioner
may be disposed without any danger to the
environment.
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.
All these valuable materials may be taken to a
waste collecting center and used again after
adequate recycling.
Installation shall be done by professional
people, don't install unit by yourself.
For the purpose of safety, the air
conditioner must be properly grounded in
accordance with specifications.
Always remember to unplug the air
conditioner before opening inlet grill.
Always grip plug firmly and pull straight
out from the outlet.
1
Cautions
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.
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.
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.
Do not allow children to play with the air
conditioner. In no case should children be
allowed to sit on the outdoor unit.
Specifications
The refrigerating circuit is leak-proof.
For this model, the all-pole discon-rexion
connection method should be applied in
the power supply.
Such means for disconnection must be
incorporation in the fixed wiring.
Temperature and Humidity Range
*.EAA :
*.ERA :
Rated Maximum Minimum
27 32 18
19 23 14
35 43 -5
24 26 - 20 27 15
14.5 -- - 7 24 -15
6 18 --
Cooling
Heating
Indoor
outdoor
Indoor
outdoor
DB C
WB C
DB C
WB C
DB C
WB C
DB C
WB C
If the air conditioner is used under higher
temperature condition than those listed,
the built-in protection circuit may operate
to prevent internal circuit damage. Also,
during Cooling and Dry modes, if the unit
is used under conditions of lower
temperature than those listed above, the
heat-exchanger may freeze, leading to
water leakage and other damage.
Do not use this unit for any other purposes
except for the Cooling and the Heating,
Dehumidifying, and air-circulation of
rooms should be in ordinary dwellings.
The wiring method should be in line with
the local wiring standand.
The waste battery should be disposed
properly.
If the fuse on PC board is broken, please
change it with the type T 3.15A/250VAC.
The air breaker should be all-pole switch.
and the distance between it's two contacts
should no less than 3mm.
Cooling
Heating
Indoor
outdoor
Indoor
outdoor
DB C
WB C
DB C
WB C
DB C
WB C
DB C
WB C
Rated Maximum Minimum
27 32 18
19 23 14
35 43 10
24 26 - 20 27 15
14.5 -- - 7 24 -7
6 18 --
Safety Precautions
WARNING!
If the power supply cord of this air conditioner is damaged, it must be replaced by
the manufacturer or its authorized service personnel only.
Use copper wire only. All the cables shall have got the Local authentication certificate.
the power supply connects from the outdoor side.
The power cable and connecting cable are self-provided.
The parameter of connecting cable:H05RN-F 4G 0.75mm2.
The requirement of the corss section area of the power supply cord: H05RN-F 3G 2.5mm2.
If the fuse on PC board is broken please change it with the type of T3.15A/250VAC.
DANGER!
Do not attempt to install this air conditioner by yourself.
This unit contains no user-serviceable parts. Always consult authorized service personnel for repairs.
When moving, consult authorized service personnel for disconnection and installation of the unit.
Do not become excessively chilled by staying for lengthy periods in the direct cooling airflow.
Do not insert fingers or objects into the outlet port or intake grills.
Do not start and stop air conditioner operation by connecting and disconnecting the power supply cord and so on.
Take care not to damage the power supply cord.
In the event of a malfunction (burning smell, etc.), stop operation immediately, turn off the circuit breaker,
and consult authorized service personnel.
CAUTION!
Provide occasional ventilation during use.
Do not direct air flow at fireplaces or heating apparatuses.
Do not climb on place objects on the air conditioner.
Do not hang objects from the indoor unit.
Do not set flower vases or water containers on top of the air conditioner.
Do not expose the air conditioner directly to water.
Do not operate the air conditioner with wet hands.
Do not pull power supply cord.
Turn off power source when not using the unit for extended periods.
Check the condition of the installation stand for damage.
Do not place animals or plants in the direct path of the air flow.
Do not drink the water drained from the air conditioner.
Do not use in applications involving the storage of foods, plants or animals, precision equipment, or art works.
Do not apply any heavy pressure to radiator fins.
Operate only with air filters installed.
Do not block or cover the intake grill and outlet port.
Ensure that any electronic equipment is at least one metre away from either the indoor or outdoor unit.
Avoid installing the air conditioner near a fireplace or other heating apparatuses.
When installing the indoor and outdoor unit, take precautions to prevent access to infants.
Do not use inflammable gases near the air conditioner.
Name of Parts
1110
Fig.1
1 Operating Control Panel (Fig.2)
2 Emergency switch
3 Remote Control Signal Receiver
4 Power Indicator Lamp (Red)
5 OPERATION Indicator Lamp (Green)
6 TIMER Indicator Lamp (Yellow)
7 Compressor Run Lamp (Green)
8 Intake Grill
9 Air Filter
10
UP/DOWN Air Direction Flaps
11
RIGHT/LEFT Air Direction Louvers
(behind UP/DOWN Air Direction Flaps)
1
POWER
OPER
TIMER
COMP
3
EMER
Fig.2
4
5
6
7
2
3
9
8
Fig.1 Indoor Unit
Note : For the wired control type unit, the unit state should be checked by the the wired
controller, instead of the remote receiver; and if you set the TIMER function, the
TIMER LED on the remote receiver will not be on.
4
Cleaning and Care
CAUTION!
Before cleaning the air conditioner ,be sure to turn it off and disconnect
the Power Supply Cord.
Be sure the Intake Grill is installed securely.
When removing and replacing the air filters, be sure not to touch the heat
exchanger, as personal injury may result.
Cleaning the Air Filter
Open the Intake Grill
1. Pull out both sides and the center of the
Intake Grill.
About 30 mm
Arm
Intake Grill
Side Panel
Hook
Notch
Arm
4. Re-attach the Air Filters to the Intake Grill.
1
The Filters fit onto the inside of the intake
Grill. (figure 1)
2
The bottom edges of the Air Filters should
fit into the filter brackets. (figure 1)
3
The Air Filters should be pushed down so
that their top edges fit under the projections
at the top of the Intake Grill. (figure 2)
Air Filter
(Figure 1)
Filter bracket
(Figure 2)
2. Pull the Air Filters upward to remove
them.
Push the Air Filter handles away from the
Intake Grille in direction as illustrated, then
pull out Air Filters.
Air Filter
Bracket
Base
Handle
3. Clean the Air Filters.
Remove the dust from the Air Filters by
vacuum cleaner or washing them. After
washing, allow the Air Filters to dry
thoroughly in an area protected from sunlight.
5. Push in both sides and the center of the
Intake Grill.
Dust can be cleaned from the Air Filter
either with a vacuum cleaner, or by washing
the filter in a solution of mild detergent and
warm water. If you wash the filter, be sure
to allow it to dry thoroughly in a shady
place before reinstalling.
If dirt is allowed to accumulate on the Air
Filter, air flow will be reduced, lowering
operating efficiency and increasing noise.
During periods of normal use, the Air
Filters should be cleaned every two weeks.
5
Operation Tips
Operation and Performance
*Heating Performance
This air conditioner operates on the heat-pump
principle, absorbing heat from outdoor air and
transferring that heat indoors. As a result, the
operating performance is reduced as outdoor air
temperature drops. If you feel that insufficient
heating perfomance is being produced, we
recommend you use this air conditioner in
conjunction with another kind of heating
appliance.
Heat-pump air conditioners heat your entire
room by recirculating air throughout the room,
with the result that some time may be required
after first starting the air conditioner until the
room is heated.
Instructions relating to heating (*) are applicable
only to "HEAT & COOL TYPE".
*Microcomputer-controlled Automatic Defrosting
When using the Heating mode under
conditions of low outdoor air temperature high
humidity, frost may form on the outdoor unit,
resulting in reduced operating performance.
In order to prevent this kind of reduced
performance, this unit is equipped with a
Microcomputer-controlled Automatic
Defrosting function. If frost forms, the air
conditioner will temporarily stop, and the
defrosting circuit will operate briefly (for
about 7 to 15 minutes).
STANDARD PARTS
The following installation parts are furnished. Use
them as required.
Mark Parts name
A
B
C
D
E
F
G
Optional parts
Adhesive tape
Saddle (L.S) with screws
Drain hose
Heat insulation material
Piping hole cover
Putty
Plastic clamp
6
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.
Installed electrical-leaking circuit breaker.
It easily cause electrical shock without circuit
breaker.
[Location]
Air-conditioner should be located in well-vented
and easily-accessible place.
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.
(f) Kitchen with heavy oil vapour or humidity.
(g) Near to the machine emitting electric-magnetic
waves.
(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
Connect earthing wire.
Earthing wire should not be connected to the gas pipe, water pipe,
lightning rod or phone line, incorrect earthing may cause shock.
Use discharge pipe correctly to ensure efficient
discharge.
Incorrect pipe use may cause water leaking.
supply wire, connecting wire, pipes, otherwise
images may be disturbed or noises be created.
As required, take measures against heavy snow.
Earthing
[Wiring]
Air-conditioner should be equipped with special
power supply wire.
[Operating noise]
Choose 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.
No obstacles around the outdoor unit outlet.
7
Installation Procedures
SELECTING THE MOUNTING POSITION
WARNING
Install at a place that can withstand the weight of the
indoor and outdoor units and install positively so that
the units will not topple or fall.
CAUTION
(1)Do not install where there is the danger of com bustible gas leakage.
(2) Do not install near heat sources.
(3) If children under 10 years old may approach
the unit, take preventive measures so that they
cannot reach the unit.
Decide the mounting position with the customer as follows:
1. INDOOR UNIT
(1) Install the indoor unit level on a strong wall, floor,
ceiling which is not subject to vibration.
(2) The inlet and outlet ports should not be obstructed:
the air should be able to blow all over the room.
(3) Install the unit near an electric outlet or special
branch circuit.
(4) Do not install the unit where it will be exposed to
direct sunlight.
(5) Install the unit where connection to the outdoor
unit is easy.
(6) Install the unit where the drain pipe can be easily
installed.
(7) T ake servicing, etc. into consideration and leave the
spaces shown in Fig.A. Also install the unit where
the filter can be removed.
Under ceiling
Left
30 cm
or more
Outdoor unit
Indoor unit
Ceiling
Right
1.5m
2 cm
or more
Floor console
Fig.A
Left
30 cm
or more
may be difference
1.5m
1.5m
Right
30 cm
or more
Indoor unit
8
Installation Procedures
PREPARING INDOOR UNIT INSTALLATION
1. REMOVE THE INTAKE GRILL
Open the intake grill and remove the three or four or six screws.(Fig. 1)
Fig. 1
Remark:
The main unit can be wired before the indoor
unit is installed. Select the most appropriate
installation order.
Intake grill
A. FLOOR CONSOLE TYPE
1. DRILLING FOR PIPING
Select piping and drain directions.(Fig.2)
The piping and drain can be made in three
directions as shown below.
(Fig.2)
down
The drain hose can be connected to either the
left or right side.(Fig.3)
(Fig. 3)
rear
right
When the directions are selected, drill a 7 cm dia.
hole on the wall so that the hole is tilted downward
toward the outdoor for smooth water flow. When
the pipe is led out from the rear, make a hole in
Fig.4, at the position shown.
(Fig.4)
Wall
6mm
7cm
Indoor unit outdoor unit
When installing set to wall, install the accessory wall
bracket at the position shown in Fig.5,and mount the
set to it.
(Fig. 5)
65.5cm
53cm
4.5cm
99cm
50cm
6.5cm
3.5cm hole
7cm hole
24.5cm
Wall bracket
Side of set
6.5cm
Drain hose (Left side) Drain hose (Right side)
12.5cm 10cm
9
Installation Procedures
2. INSTALLING DRAIN HOSE
Select whether the drain hose will be connected
to the left or right side.(Fig.3) Insert the drain
hose into the drain pan, then secure the drain
hose with a nylon fastener. (Fig.6)
(Fig. 6)
Wrap the insulation (drain hose) around the drain
hose connection. (Fig.7)
(Fig. 7)
Drain pan
Drain pan
Nylon fastener
Insulation
Drain hose
Be sure to arrange the drain hose correctly so that it is leveled lower than the drain hose connecting port
of the indoor unit.
Fig. 8
Arrange the drain hose
lower than this portion.
Do not install the unit drain hose side is too high. Height A should be less than 5 mm.(Fig.9)
Fig. 9
OK NO NO
Drain hose
CAUTION
Drain hose
(Drain hose)
B. UNDER CEILING TYPE
Using the installation template, drill holes for
piping and anchor bolts(for holes).(Fig.10)
Drain hose
A A
Fig. 10
200mm
10
900mm
Installation
template
Drilling position
for piping
Drilling position
for anchor bolt
Ceilling
Wall
Installation Procedures
1. DRILLING FOR PIPING
Select piping and drain directions.
(Fig.11)
Rear (Install the drain
hose in the direction.)
Right
Fig. 11
CAUTION
Install the drain hose at the rear; it should not
be installed on the top or right side.
When the directions are selected, drill 80mm and
50mm or 150mm dia. hole on the wall so that the
hole is tilted downward toward the outdoor for
smooth water flow.
Fig. 12
Wall
6mm
3. INSTALLING BRACKETS
Install the brackets with nuts, washers and spring
washers.(Fig. 15)
Fig. 15
Spring washer
Special nut
Bracket (Left)
Bracket (Right)
Bracket
4. INSTALLING INDOOR UNIT
Reset the hex bolts as shown in Fig.16.
Fig. 16
Hex bolt
2. DRILLING HOLES FOR ANCHOR BOLTS AND
INST ALLING THE ANCHOR BOLTS
With a concrete drill, drill four 12.7 mm dia. Holes.
(Fig.13)
Fig. 13
60 to 70mm
12.7mm
Insert the anchor bolts into the drilled holes, and drive
the pins completely into the anchor bolts with a hammer.
(Fig. 14)
Fig. 14
Indoor unit
8 to 13mm
Apply the indoor unit to the brackets.(Fig.17)
Fig. 17
Bolt
Indoor unit
Bracket
Now, securely tighten the hex bolts in both sides.
11
Installation Procedures
5. INSTALL THE DRAIN HOSE
Select whether the drain hose will be connected to
the left or right side.(Fig.3)
Insert the drain hose into the drain pan, then secure
the drain hose with a nylon fastener.(Fig.6)
Wrap the insulation (drain hose)around the drain
hose connection.(Fig.7)
Be sure to arrange the drain hose correctly so that
it is leveled lower than the drain hose connecting
port of the indoor unit.(Fig.18)
Fig. 18
Remove the hole cover.
Arrange the drain hose
Drain hose
lower than this portion
OK
OUTDOOR UNIT INSTALLATION
CONNECTING THE PIPING
1. FLARE PROCESSING
(1) Cut the connection pipe with pipe cutters so
that the pipe is not deformed.
(2) Holding the pipe downward so that cuttings
cannot enter the pipe, remove the burrs.
(3) Remove the flare nut from the indoor unit pipe
and outdoor unit and assemble as shown in
(Table1) and insert the flare nut onto the pipe,
and flare with a flaring tool.
(4) Check if the flared part "L" (Fig.20)is spread
uniformly and that there are no cracks.
Table 1
Pipe Flare nut
Small pipe
Large pipe
Fig. 20
Width across flats
Small (width across flats 22mm)
Large (width across flats 24mm)
L dimension
L
NO
Fig. 19
VT wire hole
Pass the drain hose through here
VT wire
Drain hose
Piping hole
Base (Bottom)
Cut the grill
Intake grill
For series 142, 182
For series 242
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
Diameter of pipe
6.35mm (1/4”)
12.7mm (1/2”)
9.52mm (3/8”)
15.88mm (5/8”)
Dimension A (mm)
2. BENDING PIPES
The pipes are shaped by your hands. Be careful
not to collapse them.
Fig. 21
OK
Extend the pipe by unwinding it
NO
12
1.0~1.2
1.4~2.2
Installation Procedures
HOW TO CONNECT WIRING TO THE TERMINALS
A. For solid core wiring (or F-cable)(Fig.24A)
(1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 25mm of the
exposed solid wire.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal board.
(3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw.
(4) Shape the loop wire properly, place it on the terminal board and tighten securely with the terminal
screw using a screw driver.
B. For strand wiring(Fig.24B)
(1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 10mm of the
exposed strand wiring.
(2) Using a screwdriver, remove the terminal screw(s)on the terminal board.
(3) Using a round terminal fastener or pliers, securely clamp a round terminal to each stripped wire end.
(4) Position the round terminal wire, and replace and tighten the terminal screw using a screw driver.
Fig. 24
Wire
A. Solid wire
Strip 25mm
Insulation
Screw with
special washer
Round
terminal
Terminal
board
Loop
B. Strand wire
Round
terminal
Strip 10mm
Screw with
special washer
Round
terminal
Wire
HOW TO FIXED CONNECTION CORD AND POWER CABLE AT
THE CORD CLAMP
After passing the connection cord and power cable through the insulation tube, fasten it with the cord
clamp, as shown in Fig.25
Fig. 25
Insulation tube
Cord clamp
Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.
13
Installation Procedures
ELECTRICAL REQUIREMENT
Electric wire size and fuse capacity:
Table 5
Type
Connection cord
(mm2)
Power supply
cord (mm2)
Fuse capacity(A)
For series 142 For series 182 For series 242
0.75 0.75
2.5 4.0
30 40
0.75
2.5
30
ELECTRICAL WIRING
CAUTION
(1) Match the terminal block numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric
parts.
(2) Connect the connection cords firmly to the terminal
block. Imperfect installation may cause a fire.
(3) Always fasten the outside covering of the connection
cord with the cord clamp.(If the insulator is chafed,
electric leakage may occur.)
(4) Always connect the ground wire.
1. INDOOR UNIT SIDE
(1) Remove the electric component box.
Fig. 26
Electric component box
Fig. 27
Electric component box
(2) Pull out the electric component box.
Fig.28
Electric component box
(3) Remove the electric component box cover.
Fig. 29
Base
Electric component box cover
Remove the three tapping screws.
CAUTION
Be careful not to pinch the lead wires
between the electric component box
and base.
(4) Wiring
(1) Remove the cord clamp.
(2) Process the end of the connection cords to the
dimensions shown in Fig.34.
(3) Connect the end of the connection cord fully into the
terminal block.
(4) Fasten the connection cord with a cord clamp.
(5) Fasten the end of the connection cord with the
screw.
Power supply: 1PH, 220-230V~, 50Hz
INDOOR UNIT
TERMINAL BLOCK
1 2 3 N L
Remove the four tapping
screws.
CAUTION
Do not remove the screws. If the screws
are removed, the electric component
box will fall.
14
OUTDOOR UNIT
TERMINAL BLOCK
INDOOR UNIT
TERMINAL BLOCK
OUTDOOR UNIT
TERMINAL BLOCK
1 2 3
1 2 3
L N
Power supply: 1PH, 220-230V~, 50Hz
1 2 3
Installation Procedures
ELECTRICAL WIRING
WARNING
(1) Always use a special branch circuit and install a special
receptacle to supply power to the room air conditioner.
(2) Use a circuit breaker and receptacle matched to the
capacity of the room air conditioner.
(3) The circuit breaker is installed in the permanent wiring.
Always use a circuit that can trip all the poles of the
wiring and has an isolation distance of at least 3mm
between the contacts of each pole.
(4) Perform wiring work in accordance with standards so
that the room air conditioner can be operated safely
and positively.
(5) Install a leakage circuit breaker in accordance with the
related laws and regulations and electric company
standards.
CAUTION
(1) The power source capacity must be the sum of the
room air conditioner current and the current of other
electrical appliances. When the current contracted
capacity is insufficient, change the contracted capacity.
(2) When the voltage is too low and the air conditioner is dif ficult to start, contact the power company the voltage
raised.
(2) Air filter removal and cleaning, and how to use
air louvers.
(3) Give the operating and installation manuals to
the customer.
MOUNT THE COVER PLATE AND
THE INTAKE GRILL
1.Mount the cover plate. (Right)
(1) Cut a pipe exit hole in the right plate. This is
only when the pipe exits from the right side.
(This operation is not required when the
protrusion is on the top or rear.)
Fig. 31
(2) Join the cover plates (right) and mount with screws.
Fig. 32
Cover plate (Right)
TEST RUNNING
1. CHECK ITEMS
(1) INDOOR UNIT
(1) Is operation of each button on the remote control
unit normal?
(2) Does each lamp light normally?
(3) Do not air flow direction louvers operate normally?
(4) Is the drain normal?
(2) OUTDOOR UNIT
(1) Is there any abnormal noise and vibration during
operation?
(2) Will noise, wind, or drain water from the unit disturb
the neighbors?
(3) Is there any gas leakage?
CUSTOMER GUIDANCE
Explain the following to the customer in accordance
with the operating manual:
(1) Starting and stopping method, operation switching,
temperature adjustment, timer, air flow switching,
and other remote control unit operations.
2. Mount the cover plate.(Left)
(1) Join the cover plate (left) and mount with screws.
Fig. 33
15
Installation Procedures
3. Mount the intake grill.
(1) Cut the right side of the intake grill. This is only when the pipe exits from the right side
Fig. 34
(2) Insert the hinges on the bottom of the intake grill into the holes in the base assembly. Then
mount the arms to the three areas on the top of the intake grill.
Fig. 35
16
Trouble Shooting
Followings are not problems
Sound of water flowing is
not a problem.
Sound of cracking is heard.
Smell are generated.
During operation, white fog or steam
comes out from the indoor unit.
In cooling operation, unit switches to
blowing operation.
Unit will not restart after stop.
Won't start?
During unit operation or at stop, a swishing or
gurgling noise may be heard. This noise is generated
by refrigerant flowing in the system.
During unit operation, a cracking noise may be heard.
This noise is generated by the casing expanding or
shrinking because of temperature changes.
This is because the system circulates smells from the
interior air such as the smell of cigarettes or the
painting on the furniture.
When unit is running at places like restaurant, etc. where
dense edible oil fumes always exist, this will happen.
To prevent frost from accumulating on indoor heat
exchanger, unit will switch to blowing operation for a
while then resume cooling operation.
Though ON/OFF button is set
to ON, unit won't resume cooling,
dry or heating operation
in 3 min after it is stopped, this
is because of 3-min-delay
protection circuit.
Please wait 3 minutes
No outlet air or fan speed can't be changed
in dry mode.
In heating operation, water or steam are
blown out of outdoor unit.
In heating operation, indoor fan won't stop
even if unit is stopped.
Unit will reduce fan speed repeatedly and automatically
if room temp. is too low in dry operation.
This occurs when frost accumulated on the outdoor
unit is removed.
(during defrosting operation)
After unit stop, indoor fan will go on running
until indoor unit cools down.
17
Trouble Shooting
Before ask for services, please first check your unit against the following.
Air conditioner won't start.
Is power supply switch
turned on?
Power supply
switch is not
set at ON.
Are operation control
adjusted correctly
as specified?
Proper
temp
Are horizontal louvers at
up position (in heating
mode)?
Is city power supply normal? Is leakage current breaker
activated?
Power
failure?
This is very dangerous, please
disconnect power supply
immediately and contact your
dealer.
Poor cooling or heating
Is air filter too dirty?
Any doors or windows left
open?
Are there any obstacles in inlet
or outlet grill?
Poor cooling
Is there any direct sunlight
in the room?
Cold air blows out
(in heating mode)
Is air conditioner in standby
condition in heating mode?
If there are unexpected heat
sources in the room?
If your unit still can't work properly after above mentioned
checks, or following problems occur, please stop it immediately
and contact your dealer.
Fuses or circuit breakers often blow out.
Water comes out in cooling/dry operation.
Operation is abnormal or sound is heard.
Too many people in the room?
18
Trouble Shooting
Error display ( For *.ERA )
Remarks
Resumable if
lower than 100
degree
Reason
Failure description
For remote
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
Indoor ambient temp. sensor failure
Indoor coil temp. sensor failure
Outdoor ambient temp. sensor failure
type, flash
times12
3
Sensor broken down or short circuit for more than 2m continuously
Outdoor coil temp. sensor failure
4
Fault phase, short of phase, out of balance greatly
CT check abnormal 3 times in 30m
High pressure switch acts 3 times in 30m
Over-current protection
High pressure abnormal
5
6
Communication abnormal for more than 4m continuously
Communication abnormal for more than 4m continuously
Float switch broken down for more than 25m continuously
Outside signal broken down for more than 10s
Sensor broken down or short circuit for more than 2m continuously
Solenoid valve act incorrectly 3 times continuously
Sensor broken down or short circuit for more than 2m continuously
EEPROM data missing
Low pressure switch acts in normal running
Power supply abnormal
Communication between wired
controller and indoor abnormal
Communication between indoor and outdoor abnormal
Drainage system abnormal
Outside alarm signal input
Gas pipe temp. sensor abnormal
Temperature protection malfunction
Discharging temp. sensor abnormal
EEPROM abnormal
Pressure abnormal(low pressure)
7
8910111213141516
Indoor operation mode is different with the running indoor unit.
The discharging temperature is higher than 120degree
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
SPUD module temperature is too high
Compressor overheat
Abnormal mode
Outdoor coil B(suction temp sensor-for MRV II)
Outdoor discharging B(oil temp sensor-for MRV II)
SPDU module temperature protection
1718192021
19
shows resumable fault, * shows it is not resumable fault.
Trouble Shooting
Error display ( For *.EAA )
Remarks
Resumable if
lower than 100
degree
Reason
Failure description
For remote
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
Indoor ambient temp. sensor failure
Indoor coil temp. sensor failure
Outdoor ambient temp. sensor failure
type, flash
times12
3
Sensor broken down or short circuit for more than 2m continuously
Outdoor coil temp. sensor failure
4
Fault phase, short of phase, out of balance greatly
CT check abnormal 3 times in 30m
High pressure switch acts 3 times in 30m
Over-current protection
High pressure abnormal
5
6
Communication abnormal for more than 4m continuously
Communication abnormal for more than 4m continuously
Float switch broken down for more than 25m continuously
Outside signal broken down for more than 10s
Sensor broken down or short circuit for more than 2m continuously
Solenoid valve act incorrectly 3 times continuously
Sensor broken down or short circuit for more than 2m continuously
EEPROM data missing
Low pressure switch acts in normal running
Power supply abnormal
Communication between wired
controller and indoor abnormal
Communication between indoor and outdoor abnormal
Drainage system abnormal
Outside alarm signal input
Gas pipe temp. sensor abnormal
Temperature protection malfunction
Discharging temp. sensor abnormal
EEPROM abnormal
Pressure abnormal(low pressure)
7
8910111213141516
Indoor operation mode is different with the running indoor unit.
The discharging temperature is higher than 120degree
Sensor broken down or short circuit for more than 2m continuously
Sensor broken down or short circuit for more than 2m continuously
Compressor overheat
Abnormal mode
Outdoor coil B(suction temp sensor-for MRV II)
Outdoor discharging B(oil temp sensor-for MRV II)
171819
shows resumable fault, * shows it is not resumable fault.
20
20
HAIER GROUP
Qingdao Haier Air Conditioner Electric Co., Ltd.
Address: Haier Garden, Qianwangang Road, Economic Development Zone,
Qingdao, Shandong 266500, P.R.China
Web Site: http://www.haier.com
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