Haier AD18MS1ERA, AD24MS2ERAD, AD12MS1ERAD, AD24MS2ERA, AD28MS2ERA Operating Manual And Instructions

No.0150513771 E

Polski

AD24MS1ERA
AD24MS1ERA(D)

AD28NS1ERA(S)
AD36NS1ERA(S)
AD48NS1ERA(S)

AD12MS1ERA
AD12MS1ERA(D)

AD18MS1ERA
AD18MS1ERA(D)
AD24MS2ERA
AD24MS2ERA(D)
AD28MS2ERA(S)
AD28MS2ERA(S)(D)

DUCT TYPE AIR CONDITIONER
OPERATION MANUAL AND INSTALLATION MANUAL

Contents

Please read this manual carefully before installation.

Keep this operation manual for future reference.

English

Cautions
Safety Precautions
Parts and Functions
Operation
Installation Manual For Wire Controller
Heating Mode
Care and Maintenance
Troubleshooting
Precaution for Installation
Is The Unit Installed Correctly
Installation Procedure

3
4

7
10
14
15
16
17
20
21
22

AD24MS1ERA
AD24MS1ERA(D)

AD28NS1ERA(S)
AD36NS1ERA(S)
AD48NS1ERA(S)

AD12MS1ERA
AD12MS1ERA(D)

AD18MS1ERA
AD18MS1ERA(D)
AD24MS2ERA
AD24MS2ERA(D)
AD28MS2ERA(S)
AD28MS2ERA(S)(D)

CE

All the products are in conformity with the following
European provision:

-Low voltage Directive

-Electomagnetic CompatibilitY

ROHS

Your air conditioning product is marked with this
symbol.This means that electrical and electronic
products shall not be mixed with unsorted
household waste.Do not try to dismantle the
system yourself:the dismantling of the air
conditioning system,treatment of the refrigerant,of oil and of
other part must be done by a qualified installer in accordance
with relevant local and national legislation.Air conditioners
must be treated at a specialized treatment facility for reuse,
recycling and recovery.By ensuring this product is disposed
of correctly,you will help to prevent potential negative cons­equences for the environment and humen health.Please
contact the installer or local authority for more information.
Battery must be removed from the remote controller and dis­posed of separately in accordance with relevant local and
nationl legislation.

The products are fulfilled with the requirements in the
council on the Restriction of the use of Certain Hazardous

Substances in Electrical and Electronic Equipment(EU
RoHS Directive)

WEEE

In accordance with the directive 2012/19/EU of the European
parliament,herewith we inform the consumer about the dis­posal requirements of the electrical and electronic products.

DISPOSAL REQUIREMENTS:

Contains fluorinatedgreenhouse gases

covered by the Kyoto Protocol

This product contains fluorinated greenhouse gases covered
by the Kyoto Protocol.Do not vent into the atmosphere.
Refrigerant type:R410A

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 muset be adhered in the proximity of the

product charging port(e.g.onto the inside of the stop value

cover).
A contains fluorinated greenhouse gases covered by the
Kyoto Protocol

B fatory 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

Haier Industrial Park, No.1 Haier road, Qingdao,P.R.China

A

B

C

D

kg

kg

kg

R410A

WARNING

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.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities,

or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance
by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance.
This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or

mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use
of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without supervision.

The appliances are not intended to be operated by means of an external timer or separate remote-control system.
Keep the appliance and its cord out of reach of children less than 8 years.

EUROPEAN REGULATIONS
CONFORMITY FOR THE MODELS

IMPORTANT INFORMATION REGA­RDING THE REFRIGERANT USED

2011/65/EU

directive of the European parliament and of

GWP:2088

3

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

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.

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

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.

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. Never unplug your air conditioner by pulling on the
power cord. Always grip plug firmly and pull straight out from the outlet.

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.

This appliance is not intended for use by persons (including children) with reducedphysical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by
a person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance.

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.

4

Safety Precautions

Before starting to use the system, read carefully this "SAFETY PRECAUTIONS" to ensure a proper operation of the system.
Safety precautions described here are classified to " WARNING" and " CAUTION". Precautions which are shown
in the column of " WANING" means that an improper handing could lead to a grave result like a death, serious injury,
etc. However, even if precautions are shown in the column of " CAUTION", a very serious problem could occur depending
on situation. Make sure to observe these safety precautions faithfully because they are very important information to ensure
the safety.
Symbols which appear frequently in the text have following meanings.

Strictly prohibited.

Observe instructions faithfully.

Provide a positive grounding.

When you have read through the manual, keep it always at hand for read consultation. If the operator is replaced, make
sure to hand over this manual to the new operator.

CAUTIONS FOR INSTALLATION

ON

OFF

WARNING

CAUTION

The system should be applied to places as office,
restaurant, residence and the like.

The system should be installed by your dealer or
a professional installer.

When you need some optional devices such as a
humidifier, electric heater, etc., be sure to use the products
which are recommended by us. These devices should
be attached by a professional installer.

Application to inferior environment such as an
engineering shop, could cause equipment
malfunction and serious injury or death.

Installation by yourself is not encouraged because
it could cause such problems as water leakage,
electrical shock or fire accident by some improper
handing.

Installation by yourself is not encouraged because it could
cause such problems as water leakage, electrical shock
or fire accident by some improper handing.

Do not install nearby the place where may have
leakage of flammable gas.

Depending on the place of installation, a circuit
breaker may be necessary.

Drain pipe should be arranged to provide a positive
draining.

If the gas leakes and gathers around, it may cause
the fire.

Unless the circuit breaker is installed, it could cause
elecrical shocks.

Where strong winds may prevail, the system
should be fixed securely to prevent a collapse.

Install on the place where can endure the weight
of air conditioner.

Make sure the system is grounded.

If the pipe is arranged improperly, furniture or the
likes may be damaged by leaked water.

Bodily injury could result by a collapse. Bodily injury could result by a careless installation. Grounding cable should never be connected to

a gas pipe, city water pipe, lightning conductor
rod or grounding cable of telephone. If the
grounding cable is not set properly, it could cause
electric shocks.

WARNING

CAUTIONS FOR TRANSFER OR REPAIR

Modification of the system is strictly prohibited. When the system needs a
repair, consult your dealer.

When the air conditioner is relocated, contact your dealer or a professional
installer.

Improper practice of repair could cause water leakage, electric shock or
fire.

Improper practice of installation could cause water leakage, electric shock
or fire.

Do not wash the air conditioner with water.

Do not install the system where the air outlet
reaches directly the flora and fauna.

Make sure to use a fuse of proper electric rating.

Do not operate the system while the air outlet grill
is removed.

It is strictly prohibited to place a container of
combustible gas or liquid near the air conditioner
or to spray it directly with the gas or liquid.

Neither stand on the air conditioner nor
place something on it.

Do not use the power switch to turn on or off the
system.

Do not touch the air outlet section while the swing
louver is operating.

Do not use such equipment as a water heater, etc.
around the indoor unit or the wire controller.

ON

OFF

It could cause electric shocks. It will not be good for their health. Use of steel or copper wire in place of a fuse is

strictly prohibited because it could result in a trouble
or fire accident.

There is a risk of injury.It could cause a fire accident.There are risks of falling or injury by collapsed

object.

It could cause a fire or water leakage. There is a risk of injury. If the system is operated at the vicinity of such

equipment which generates steam, condensed
water may drip during cooling operation or it could
cause a fault current or short-circuit.

When operating the system simultaneously with
a combustion apparatus, indoor air must be
ventilated frequently.

Check occasionally the support structure of the
unit for any damage after a use of long period of
time.

Insufficient ventilation could cause an oxygen
deficiency accident.

If the structure is not repaired immediately, the
unit could topple down to cause a personal injury.

When cleaning the system, stop the operation and
turn off the power switch.

Do not put water containers on the unit such as a flower vase, etc.

Cleaning should never be done while the internal
fans are running with high speed.

If the water enters into the unit and damages the electric insulation material, it may cause electric shock.

WARNING

CAUTION

CAUTIONS FOR OPERATION

You should refrain from exposing your body directly
to cool wind for a long time.

Do not poke the air inlet or outlet with a bar, etc. When any abnormal condition (scorching smell or

others) is found, stop the operation immediately
and turn off the power switch. Then consult your
dealer.

It could affect your physical condition or cause
some health problems.

Since the internal fan is operating with a high
speed, it could cause an injury.

If you continue the operation without removing the
cause, it could result in a trouble, electric shock
or fire.

The system should never be used for any other
purposes than intended such as for preservation
of food, flora and fauna, precision devices or work
of art.

Do not handle switches with a wet hand. Combustion apparatus should not be placed

allowing a direct exposure to wind of air conditioner.

Incomplete combustion could occur on the
apparatus.

It could cause electric shocks.It could cause deterioration of food or other

problems.

5

Safety Precautions

6

Safety Precautions

1. Applicable ambient temperature range:

The machine is adaptive in following situation

Cooling

Heating

Indoor temperature

Outdoor temperature

Indoor temperature

Outdoor temperature

max. DB/WB
min. DB/WB

max. DB/WB
min. DB/WB

max. DB/WB
min. DB/WB

max. DB/WB
min. DB/WB

32/23 C
18/14 C

46/26 C
10/6 C

27 C
15 C

24/18 C

-15 C

2. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar qualified person.

3. If the fuse on the indoor PC board is broken please change it with the type of T 6.3A /250VAC(For series 24,28,36,48).

4. The wiring method should be in line with the local wiring standard.

5. The power cable should be:
H05RN-F 3G 4.0mm2(For series 12,18,24);
The connecting cable should be:
H05RN-F 4G 1.3mm2 (For series 12,18,24,28,36,48)
All the cables shall have got the European authentication certificate. During installation, when the connecting cables
break off, it must be assured that the grouding wire is the last one to be broken off.

6. The power cable and connect cable should be self-provided.

7. The breaker of the air conditioner should be all-pole switch, and the distance between its two contacts should be no
less than 3mm.

8. The indoor unit installation height is at least 2.5m.

9. A leakage breaker must be installed.

10.For AD12MS1ERA and AD12MS1ERA(D),AD18MS1ERA,AD18MS1ERA(D), AD24MS2ERA,AD24MS2ERA(D),
AD28MS2ERA(S),AD28MS2ERA(S)(D),we can get the 4 different ESP through adjust the indoor unit PCB SW1-4 and
SW1-5, please refer below:

Attention: cut off the power supply to adjust the SW1-4, and SW1-5, or else the operation is invalid.

SW1

(1) (2) (3) (4) (5) (6) (7) (8)

Static pressure

10 Pa
30 Pa

50 Pa
70 Pa

OFFOFF
OFFON
ON OFF
ON ON

- - - - - -

- - - - - -

- - - - - -

- - - - - -

Attention:

Unit model with the letter D is the mechine without water pump.
Unit model without the letter D is the mechine with water pump.

AD12MS1ERA AD12MS1ERA(D)

AD24MS1ERA

AD28NS1ERA(S) AD36NS1ERA(S) AD48NS1ERA(S)

AD24MS1ERA(D)

7

Parts and Functions

Electrical components Case

Drain pan Evaporator

Air outlet frame

The pump
drain opening

Electrical components Case

Air outlet frame

Drain pan Evaporator

The pump
drain opening

Air outlet

Air inlet

Duct

The pump
drain opening

Electrical components Case

Drain pan

Evaporator

Air outlet frame

Electrical components Case

Drain pan Evaporator

Air outlet frame

Drain opening

Electrical components Case

Air outlet frame

Drain pan Evaporator

Drain opening

Drain opening

Electrical components Case

Drain pan Evaporator

Air outlet frame

AD18MS1ERA AD24MS2ERA AD28MS2ERA(S) AD18MS1ERA(D) AD24MS2ERA(D) AD28MS2ERA(S)(D)

8

Parts and Functions

Buttons of the wire controller

Reset key

When in abnormal state, push the
reset key with a spike, which may
return the unit to normal

Health switch

Used to control oxygen
function and negative ion

Filter reset

After cleaning air inlet
and filter, press
this switch. The unit
begins to run

ON/OFF switch

Do on and off function. The unit is
on when pressing it; and is off
when pressing it again.

Fan speed switch

Change wind speed

Time switch

It is used to regulate setting time.

Self-inspection
switch

It is used for inspection
service

Air change switch

It is used to open and close air
change function. The mode is as
follows:
No display-air change (automatic)­air change (RECOVERY)-air
change (NORMAL)

Clock, timing and address setting

Timing switch

It is used for choosing
timing running

Mode switch

Choose running mode

Swing switch

Open and close air flap

TEMP switch

Used for changing set temperature

AUTO

FAN ONLY

COOL

DRY

HEAT

TES

FAN

AUTO
HIGH

LOW

FIX

CENTRAL

OPERATION

STANDBY
PRE-HEAT

DEFROST

FILTER

MODE

HEALTH

SWING

CHECK

UNIT NO.

C
F

DEMAND

CEN. ADD.

SYS. ADD.

MANUAL

ROOM TEMP.

SET TEMP.

TIMER

VENTILATION

CLOCK UP DOWN

ON

OFF

DAILY

AUTO

RECOVERY

NORMAL

MODE FAN SWING

HEALTH

CLOCK

TIMER

CHECK FILTER

RESET

ON/OFF

SET RECOVERY

TEMP

TIME

MED

9

Parts and Functions

Standby display

When the unit is on power and in
"abnormity mode", or outdoor unit
malfunction show alarm , "standby" is
shown to reflect no need to unit.

Display of the wire controller

Remarks

The models in the manual don't have health, filter reset and Air change function.

Running mode display

Show the selected mode

Wind swing display

Filter screen warning
sign

When the sign is
shown, please clean
the filter screen

Centralized display

When controlled by centralized
controller, and chosen by "centralize or
lock" mode, this information is shown.

Timing operation
display

Show timing operation
content

Temperature
display

Display the room
temperature, setting
temperature, and
unit number

Air volume display

Display the setting speed

Inspection status display

Air change display

Health function display

Unit number display
Centralized adress
display
System adress display

Running display

When the compressor runs, it displays.

Demand display

When forced to run,"DEMAND"
will be displayed , or show HH/LL
in the temperature zone.

"Defrost" is shown
when defrosting.

When in preheating
status, "preheating" is
shown.

AUTO

FAN ONLY

COOL

DRY

HEAT

TES

FAN

AUTO

HIGH

LOW

FIX

CENTRAL

OPERATION

STANDBY
PRE-HEAT

DEFROST

FILTER

MODE

HEALTH

SWING

CHECK

UNIT NO.

C
F

DEMAND

CEN. ADD.

SYS. ADD.

MANUAL

ROOM TEMP.

SET TEMP.

TIMER

VENTILATION

CLOCK UP DOWN

ON

OFF

DAILY

AUTO

RECOVERY

NORMAL

MODE FAN SWING

HEALTH

CLOCK

TIMER

CHECK FILTER

RESET

ON/OFF

SET RECOVERY

TEMP

TIME

MED

10

Operation

ON/OFF operation

Press ON/OFF switch on line controller directly

The line controller displays the running state in the latest
time (timing and swing state may not be displayed).

1. Press "ON/OFF" switch.

The air conditioner starts operating, and the light on the
wired controller is on.

3.Press "TEMP" switch

Change set temperature:press TEMP or TEMP every
time, [SET] will display,and set temperature will
increase/reduce

4.Press "FAN SPEED" switch

FAN ONLY Operation:
Press "FAN SPEED" switch to change to
"HIGH"--"MED"--"LOW"--"HIGH"

In AUTO,COOL,DRY,HEAT Operation:
Press "FAN SPEED" switch to change to
"AUTO"--"HIGH"--"MED"--"LOW"--"AUTO"

Avoid pressing "ON/OFF" switch frequently.
Do not press line controller or switches by sharp objects.
The temperature is on the basis of the setting value. The wind temperature may not reach the setting value because of
the outer air conditioner and system protection.
When the wired controller is power on, the screen fully displays it for two seconds. and clock zone "8888"-"888"-"88"-"8"
flicker for 30 seconds. All the switches are invalid at the time.

Remarks

Note

5.Press "swing" switch on the line controller to
swing the wind screen.

6.Press "ON/OFF"switch, off.

The light on the line controller is off.

2.Choose operation mode.

Press "mode"switch to change to
"AUTO"---"FAN ONLY"---"COOL"---"DRY"---"HEAT".

HIGH

C

ROOM TEMP.

COOL

FAN

OPERATION

MODE

CLOCK

MODE FAN SWING

HEALTH

CLOCK

TIMER

CHECK FILTER

RESET

ON/OFF

SET RECOVERY

TEMP

TIME

2

4

5

3

1

6

Several seconds after the operation of the line controller,
the setting of the unit will change.

11

Operation

1.Press "CLOCK" switch

2.Press " " and " " to regulate the time.

Setting of power failure compensation function

When SW1-6 on PCB of wire controller is OFF, it will be in power failure compensation. If the SW1-6 is ON, it has no
compensation function.
When the power is on after blackout, the unit will return to the former state if compensation function is set. Otherwise, it
will stop. When restarting the unit, press "ON/OFF" switch on wired controller.

3.Press "setting" switch. The setting is achieved.

"CLOCK" flickers, and the time displayed is the real time.

The time increases a minute each time you press " " switch.
The time decreases a minute each time you press " " switch.

If not in timing, the screen displays the real time.
If in timing, the screen displays the timing time.
If you want to know the real time, go to the first step.

Notes

The timing is based on the real time. Thus, the real time should be regulated in advance.

The clock regulation steps are as follows:

123

HIGH

C

ROOM TEMP.

HEAT

FAN

OPERATION

MODE

CLOCK UP

MODE FAN SWING

HEALTH

CLOCK

TIMER

CHECK FILTER

RESET

ON/OFF

SET RECOVERY

TEMP

TIME

Present time setting

12

Operation

2.Set up "TIMER"

The display changes with the following sequence:

on
OFF

OFF

CYCLE

ON

no display

1.Press "TIME" switch.

The shorter setting time will be carried out firstly.
If the ON timing and OFF timing are the same, the setting is invalid.
Even in timing condition, you may start or close the unit through pressing "ON/OFF" switch.

Notes

Timing setting

Press "ON/OFF" switch
firstly, and set up operation
mode.
Please regulate the clock in
advance before using the
timing function.

3.Time setting is achieved. Press"setting"switch.

If you want to change the timing mode to normal operation,
press "timing" until there is no timing display. When the
timing is invalid, the mode is in normal operation.

Cancel timing

1.The unit starts or stops at the setting time. Meanwhile, it displays the timing time.

2."ON Timing, OFF timing and circulation"means that the unit is on and off at the setting time everyday.

When timing ON or timing OFF flickers, press " " or " " to
regulate the time
Press" "or " "set up ON/OFF time.
The setting time increases ten minutes each time you press " "
switch.
The setting time decreases ten minutes each time you press " "
switch.
When setting timing ON and timing OFF at the same time,
press "timing" switch to change the setting item.

on
OFF

HIGH

C

ROOM TEMP.

123

COOL

FAN

OPERATION

MODE

TIMER

ON

MODE FAN SWING

HEALTH

CLOCK

TIMER

CHECK FILTER

RESET

ON/OFF

SET RECOVERY

TEMP

TIME

OFF timing: when a set time has elapsed, the unit stops running.
ON timing: when a set time has elapsed, the unit starts.

parts of wired controller explanation :

1. Switches or jumper wire must be adjusted when the wire controller is powered off. If the wire controller is
powered on, the above operations will be invalid.

2. Function difference between master wire controller and slave one:

Notes

Factory Setting OFF default settingSW1-8

Installation Manual For Wire Controller

Factory Seting ON default settingSW1-7

13

Operation

Query indoor malfunction history:

In the state of power on or power off, press [CHECK] button, enter the malfunction-querying mode of all indoor units in
the group. Then [CHECK] and [UNIT NO.] will display, and the actual indoor numbers will be displayed in some sequence
(unit number is in decimals). At the same time, in the time region, there will be the current malfunction and the latest time
malfunction, the displaying format is [XX:YY], in which XX stands for the current malfunction, if normal, it will display "--";
YY stands for the latest time malfunction. The failure code of every unit will display for 3 seconds. After the failure codes
of all indoor units in the whole group are displayed, the mode will quit automatically.

How to change the function switches?

Master wire
controller

Slave wire controller

Function All of functions

Only with below functions: ON/OFF, MODE, FAN
SPEED, SET TEMP., SWING

Contrastive
items

No. Type State of switch Function description

Select the master or
the slave controller

ON set as the slave controller

OFF

SW1-1

OFF set as the master controller

Select the controller
mode

ON

standard controller

SW1-2

air handler controller

Room temperature
display option

ON

visible room temperature

SW1-3

invisible room temperature

26

o

lock

ON

Unavailable 26o lock

SW1-4

available 26

o

lock
Temperature sensor
position option

ON

Sensor of the controller

SW1-5

Sensor in the unit

OFF

Auto restart

ON unavailable

SW1-6

available

OFF

OFF

OFF

3.Wiring instruction

Use shielded wire between indoor and wire controller.And be earthed on one side, or the unit will not work normally
because of interference.

Note:Confirm the terminal connection firmly, and do not get in tough with shielded wire.

4.Place wire controller on the holder, and pay attention not to pressing any wires.

10.45

Screw holes

5.3

Bracket

Wire controller

1. Take down wire controller from the holder

2. Install the controller holder

According to the position of 2 screw holes on the
holder, drill 2 holes on the wall, and strike the wood
stopper to the holes respectively.
Then align the 2 screw holes of wired controller
holder to the wood stopper, fix the holder on the wall
with wood screw.
Note:Try a wall as flat as possible for installation.
Don't use excessive force to tighten screws,
otherwise, the holder will be damaged.

AUTO

FAN ONLY

COOL

DRY

HEAT

TES

FAN

AUTO
HIGH

LOW

FIX

CENTRAL

OPERATION

STANDBY

PRE-HEAT

DEFROST

FILTER

MODE

HEALTH

SWING

CHECK

UNIT NO.

C
F

DEMAND

CEN. ADD.

SYS. ADD.

MANUAL

ROOM TEMP.

SET TEMP.

TIMER

VENTILATION

CLOCKUP DOWN

ON

OFF

DAILY

AUTO

RECOVERY

NORMAL

MODE FAN SWING

HEALTH

CLOCK

TIMER

CHECK FILTER

RESET

ON/OFF

SET RECOVERY

TEMP

TIME

MED

Installation Manual For Wire Controller

14

5. Wiring connections of wire controller:

Indoor 1

Wire controller

A B C

Wire controller

Polar wire

Indoor 1

Wire controller

A B C

Wire controller

Polar wire

A B C

Wire controller

Polar wire

BC

A B C A B C

ABCABCAB

ABC

CABCABC

Indoor 1 Indoor 2 Indoor N Indoor 15 Indoor 16

Wire controller

Control wiring
of wire
controller

TYPE 2, FOR AD24MS1ERA, AD24MS1ERA(D),AD28/36/48NS1ERA(S)

ABCABC

AB

ABC

C

ABC

ABC

A

Indoor 1

Wire controller
port

Indoor 2 Indoor N Indoor 15 Indoor 16

Wire controller

Control wiring
of wire
controller

Wire controller
port

Wire controller
port

Wire controller
port

Wire controller
port

(master unit)

Wire controller
port

Wire controller
port

Wire controller
port

Wire controller
port

Wire controller
port

(master unit)

TYPE 1, FOR AD12/18MS1ERA,AD12/18MS1ERA(D),AD24MS2ERA,AD24MS2ERA(D),AD28MS2ERA(S),AD28MS2ERA(S)(D)

There are three methods to connection wire controller and the indoor units:
A.One wired controller can control max. up to 16 sets of indoor units, and 3 pieces of polar wire must connect the wire
controller and the master unit (the indoor unit connected with wire controller directly), the others connect with the master
unit through 2 pieces of polar wire( 3 pieces for model AD12/18MS1ERA, AD12/18MS1ERA(D), AD24MS2ERA,
AD24MS2ERA(D) and the bridge CN22 CN23 on slave units PCB should be cut
off ).
B. One wire controller controls one indoor unit, and the indoor unit connects with the wire controller through 3 pieces of
polar wire.
C. Two wired controllers control one indoor unit. The wire controller connected with indoor unit is called master one, the
other is called slave one. Master wire controller and indoor unit; master and slave wire controllers are all connected
through 3 pieces of polar wire.

6. Communication wiring:

The wire controller is equipped with special communication wiring in the accessories. 3-core terminal (1-white 2-yellow 3­red) is connected with the terminal A, B, C of wire controller respectively.
The communication wiring is 5 meter long; if the actual length is more than it, please distribute wiring according to below
table:

Communication wiring length(m) Dimensions of wiring
< 100 0.3mm2x3-core shielded wire
100 and <200 0.5mm2x3-core shielded wire
200 and <300 0.75mm2x3-core shielded wire
300 and <400 1.25mm2x3-core shielded wire
400 and <600 2mm2x3-core shielded wire

*One side of the shielded sheet of communication wire must be earthed.

, AD28MS2ERA(S), AD28MS2ERA(S)(D)

"HOT KEEP" function

Heating Mode

15

"HOT KEEP" is operated in the following cases.

When heating is started:
In order to prevent blowing out of cool wind, the indoor unit fan stopped according to the room temperature which heating
operation is started. Wait for approx. 2 to 3 minute, and the operation will be automatically changed to the ordinary heating
mode.
Defrosting operation (in the heating mode):
When it is liable to frost, the heating operation is stopped automatically for 5 to 12 minutes once per approx. one hour,
and defrosting is operated. After defrosting is completed, operation mode is automatically changed to ordinary heating
operation.
When the room thermostat is actuated:
When room temperature increases and room temperature controller actuates, the fan speed is automatically changed to
stop under low temperature condition of indoor heat exchanger. When room temperature decreases, air conditioner
automatically changes over to ordinary heating operation.

Heat pump type warming
With the heat pump type warming, the mechanism of heat pump that concentrate heat of outdoor air with the help of
refrigerant to warm the indoor space, is utilized.
Defrosting operation
When a room is warmed with a heat pump type air conditioner, frost accumulates on the heat exchanger of outdoor unit
along with the drop of indoor temperature. Since the accumulated frost reduces the effect of warming, it is necessery to
automatically switch the operation to the defrosting mode. During the defrosting operation, heating operation is interrupted.
Atmospheric temperature and warming capacity
Warming capacity of heat pump type air conditioner decreases along with the drop of outdoor temperature.
When the warming capacity is not sufficient, it is recommended to use another heating implement.
Period of warm-up
Since the heat pump type air conditioner employs a method to circulate warm winds to warm
the entire space of a room, it takes time before the room temperature rises.
It is recommendable to start the operation a little earlier in a very cold morning.

Warming operation

Points to observe

Turn off the power supply switch. Do not touch with wet hand. Do not use hot water or volatile liquid.

ON

OFF

Thinner

Do not
use!

Benzine
Tooth powder

Cleaning the air filter

Do not dry the air filter with fire.
Do not run the air conditioner without the air filter.

Pre-Season Care

See that there are no obstacles blocking the air inlet and air outlet of both indoor and outdoor units.
Make sure that the air filter is not dirty.
Cut in the power supply switch 12 hours before starting run.

Post-Season Care

Operate the unit with FAN mode on a fair day for about half a day to dry the inside of the unit well.
Stop operation and turn off the power supply switch. Electric power is consumed even the air conditioner is in stop.
Clean the air filter and set it in the place.

Care and Cleaning of the unit

Clean with soft and dry cloth.
If it is very dirty, dissolve neutral detergent in the lukewarm water and make the cloth wet with the water. After wiping,
clean off the detergent using clean water.

1.Clean the air filter by lightly tapping it or with the cleaner. It is more effective to clean
the air filter with water.
If the air filter is very dirty, dissolve neutral detergent in the lukewarm water (approx. 30 C),
rinse the air filter in the water, and thoroughly wash the air filter off the detergent
in the plain water.

2.After drying the air filter, set it up on the air conditioner.

Do not open the inlet grill until fan stops completely.
Fan will continue rotating for a while by the law of inertia after operation is being stopped.

CAUTION

CAUTION

Care and Maintenance

16

Please check the following things about your air conditioner before making a service call.

When the air conditioner does not operate properly after you have checked the above mentioned items or when the following
phenomenon is observed, stop the operation of the air conditioner and contact your sales dealer.

The fuse or breaker often shuts down.
Water drops off during cooling operation.
There is a irregularity in operation or abnormal sound is audible.
When the CHECK LED (red) flickers, an irregularity has occurred in the air conditioner.

Unit fails to start

ON

OFF

Is the power source switch
adjust cut in?

Is city supply power in
normal?

Isn't the signal receiving
section exposed to the direct
sunlight or strong illumination?

Isn't the earth leakage breaker
in action?

It is dangerous. Turn off the
power supply switch
immediately and contact the
sales dealer.

Power supply switch is not
ON.

Cooling or heating is not sufficient

Is the thermostat adjust as
required?

Isn't the air filter dirty? Isn't any doors or windows

left open?

Doesn't any obstacle exist at
the air inlet or outlet?

Cooling is not sufficient

Isn't sun-shine invading direct? Isn't any unexpected heating

load generated?

Isn't the room much crowded?

Isn't the swing louver horizontal? (At HEATING mode)
If swing louver is horizontal, the blow wind does not reach floor.

The wind does not blow during
heating operation

Isn't it warming up?

Power
stoppage?

Troubleshooting

17

The followings are not malfunction

Shuru

Shuru

When the air conditioner is started, when the compressor starts or stops
during operation or when the air conditioner is stopped, it sometimes sounds
"shuru shuru" or "gobo gobo". It is the flowing sound of the refrigerant, and it
is not a trouble.

Water flowing sound is heard.

This is caused by heat expansion or contraction of plastics.Cracking sound is heard.

It smells. Air which blows out from the indoor unit sometimes smells. The smell results

from residents of tobacco smoke or cosmetics stuck inside of unit.

When the air conditioner is used at restaurant etc. where dense edible oil
fume is always exists, white fog sometimes blows out of air outlet during
operation. In this case consult sales dealer for cleaning the heat exchanger.

During operation, white fog comes out
of indoor unit.

Unit does
not start

Wait for
three
minutes

It is switched into the FAN mode during
cooling.

To prevent frost from being accumulated on the indoor unit heat exchanger,
it is sometimes automatically switched to the FAN mode,but it will soon return
to the cooling mode.

Even if the operation switch is turned on, cooling, dehumidifying or heating
is not operable for three minutes after the conditioner is stopped. Because
the protecting circuit is activated. (During this time air conditioner operates
in fan mode.)

The air conditioner can not be restarted
soon after it stops.

Air does not blow or the fan speed can
not be changed during dehumidifying.

During operation, operation mode has
changed over automatically.

Water or steam generates from the outdoor
unit during heating.

When it is excessively cooled during dehumidifying, the blower
automatically repeats reducing and lowering the fan speed.

Isn't the AUTO mode selected?
In the case of AUTO mode, operation mode is changed automatically from
cooling to heating or vise-versa according to the room temperature.

This results when frost accumulated on the outdoor unit is removed (during
defrosting operation).

Troubleshooting

18

19

Troubleshooting

When failure happens,the fan of indoor unit stop running.The method of check failure code see page 12.
For outdoor failure,the failure code is outdoor failure LED flash times + 20.
For example,the failure code of outdoor unit is 2. the wired controller of indoor unit will display 16(using hexadecimal method).

Ta: ambient temperature sensor
Tm: coil temperature sensor

WARNING

Please read these "Safety Precautions" first and then accurately execute the installation work.
Though the precautionary points indicated herein are divided under two headings, and , those
points which are related to the strong possibility of an installation done in error resulting in death or serious injury are
listed in the section. However, there is also a possibility of serious consequences in relationship to the
points listed in the section as well. In either case, important safety related information is indicated, so by all
means, properly observe all that is mentioned.
After completing the installation, along with confirming that no abnormalities were seen from the operation tests, please
explain operating methods as well as maintenance methods to the user (customer) of this equipment, based on the owner's
manual. Moreover, ask the customer to keep this sheet together with the owner's manual.

This system should be applied to places as office, restaurant, residence and the like. Application to inferior environment
such as engineering shop could cause equipment malfunction.
Please entrust installation to either the company which sold you the equipment or to a professional contractor. Defects
from improper installations can be the cause of water leakage, electric shocks and fires.
Execute the installation accurately, based on following the installation manual. Again, improper installations can result
in water leakage, electric shocks and fires.
When a large air-conditioning system is installed to a small room, it is necessary to have a prior planned countermeasure
for the rare case of a refrigerant leakage, to prevent the exceeding of threshold concentration. In regards to preparing
this countermeasure, consult with the company from which you perchased the equipment, and make the installation
accordingly. In the rare event that a refrigerant leakage and exceeding of threshold concentration does occur, there is
the danger of a resultant oxygen deficiency accident.
For installation, confirm that the installation site can sufficiently support heavy weight. When strength is insufficient,
injury can result from a falling of the unit.
Execute the prescribed installation construction to prepare for earthquakes and the strong winds of typhoons and
hurricanes, etc. Improper installations can result in accidents due to a violent falling over of the unit.
For electrical work, please see that a licensed electrician executes the work while following the safety standards related
to electrical equipment, and local regulations as well as the installation instructions, and that only exclusive use circuits
are used. Insufficient power source circuit capacity and defective installation execution can be the cause of electric
shocks and fires.
Accurately connect wiring using the proper cable, and insure that the external force of the cable is not conducted to
the terminal connection part, through properly securing it. Improper connection or securing can result in heat generation
or fire.
Take care that wiring does not rise upward, and accurately install the lid/service panel. Its improper installation can
also result in heat generation or fire.
When setting up or moving the location of the air conditioner, do not mix air etc. or anything other than the designated
refrigerant (R410A) within the refrigeration cycle. Rupture and injury caused by abnormal high pressure can result from
such mixing.
Always use accessory parts and authorized parts for installation construction. Using parts not authorized by this company
can result in water leakage, electric shock, fire and refrigerant leakage.

WARNING

CAUTION

Execute proper grounding. Do not connect the ground wire to a gas pipe, water pipe, lightning rod or a telephone ground
wire. Improper placement of ground wires can result in electric shock.
The installation of an earth leakage breaker is necessary depending on the established location of the unit. Not installing
an earth leakage breaker may result in electric shock.
Do not install the unit where there is a concern about leakage of combustible gas.
The rare event of leaked gas collecting around the unit could result in an outbreak of fire.
For the drain pipe, follow the installation manual to insure that it allows proper drainage and thermally insulate it to
prevent condensation. Inadequate plumbing can result in water leakage and water damage to interior items.

CAUTION

WARNING

CAUTION

Precaution for Installation

20

For inspection and maintenance

When you change your address or the installation place

Electric work

Confirm the following items for safe and comfortable use of air conditioner.
The installation work is to be burden on the sales dealer, and do not conduct it by yourself.

Installation place

Avoid installing the air conditioner near
the place where possibility of
inflammable gas leakage exists.

Install the unit at well ventilated place.

Install the air conditioner firmly on the
foundation that can fully support the
weight of the unit.

If not, it may cause vibration or noise.If some obstacle exist, it may cause

capacity reduction or noise increase.

Explosion (Ignition) may occur.

Select the place so as not to annoy
neighbor with the hot air or noise.

Snow protection work is necessary
where outdoor unit is blocked up by
snow.

It is advisable not to install the air con­ditioner at the following special place.
It may cause malfunction, consult the
sales dealer when you have to install
the unit on such a place.

The place where corrosive gas
generates (Hot spring area etc.)
The place where salt breeze blows
(Seaside etc.)
The place where dense soot smoke
exists
The place where humidity is
extraordinarily high
The place where near the machine
which radiates the electromagnetic
wave
The place where voltage variation is
considerably large

For details consult your sales dealer.

The electric work must be burden on the authorized engineer with qualification for electric work and grounding work, and
the work must be conducted in accordance with electric equipment technical standard.

The power source for the unit is to be of exclusive use.
An earth leakage breaker should be installed.(This is necessary to prevent electric shock.)
The unit must be grounded.

Special technology is required for removal or reinstallation of air conditioner, consult the sales dealer. Besides, construction
expense is charged for removal or reinstallation.

The capacity of air conditioner will decrease by contamination of inside of unit when it is used for about three years although
depending upon the circumstances under which it is used, and so in addition to the usual maintenance service, special
inspection/maintenance service is necessary. It is recommended to make a maintenance contract (charged) by consulting
your sales dealer.

Is The Unit Installed Correctly

21

22

Avoid installation and use at those places listed below.

Places exposed to oil splashes or steam (e.g. kitchens and machine plants).
Installation and use at such places incur deteriorations in the performance or corrosion with the heat exchanger or damage
in molded synthetic resin parts.
Places where corrosive gas (such as sulfurous acid gas) or inflammable gas (thinner, gasoline etc.) in generated or
remains. Installation and use at such places cause corrosion in the heat exchanger and damage in molded synthetic
resin parts.
Places adjacent to equipment generating electromagnetic waves or high-frequency waves such as in hospitals.
Generated noise may cause malfunctioning of the controller.

NOTE
All wiring of this installation must comply with NATIONAL, STATE AND LOCAL REGULATIONS. These instructions

do not cover all variations for every kind of installation circumstance. Should further information be desired or should particular
problems occur, the matter should be referred to your local distributor.

WARNING

BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION. FAILURE TO FOLLOW
THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH, EQUIPMENT MALFUNCTION AND/OR
PROPERTY DAMAGE.

Preparation of indoor unit

Before or during the installation of the unit, assemble necessary optional panel etc. depending on the specific type.

Select places for installation satisfying following conditions and at the same time obtain the consent on the part
of your client user.

Places where chilled or heated air circulates freely. When the installation height exceeds 3m warmed air stays close to
the ceiling. In such cases, suggest your client users to install air circulators.
Places where perfect drainage can be prepared and sufficient drainage.
Places free from air disturbances to the suction port and blowout hole of the indoor unit, places where the fire alarm
may not malfunction or short-circuit.
Places with the environmental dew-point temperature is lower than 28 and the relative humidity is less than 80 %.
(When installing at a place under a high humidity environment, pay sufficient attention to the prevention of dewing such
as thermal insulation of the unit. )
Ceiling height shall have the following height.

50mm

Obstacle

Installation space

C

Combination
with silent
panel

416mm

366mm

a.
b.

c.
d.

e.

a.

b.

c.

Indoor Unit

100mm 100mm

Pipe size

AD28NS1ERA(S)
AD36NS1ERA(S)
AD48NS1ERA(S)

AD12MS1ERA AD12MS1ERA(D)
AD18MS1ERA AD18MS1ERA(D)
AD24MS1ERA AD24MS1ERA(D)
AD24MS2ERA AD24MS2ERA(D)
AD28MS2ERA(S) AD28MS2ERA(S)(D)

AD12MS1ERA AD12MS1ERA(D)

AD24MS1ERA AD24MS1ERA(D)
AD24MS2ERA AD24MS2ERA(D)
AD28NS1ERA(S) AD28MS2ERA(S)
AD28MS2ERA(S)(D)AD36NS1ERA(S)

Installation Procedure

Model Liquid side Gas side

9.52mm 15.88mm

9.52mm 19.05mm

6.35mm 9.52mm

6.35mm 12.7mm

AD18MS1ERA AD18MS1ERA(D)

AD48NS1ERA(S)

2.Installation of indoor unit

Fix the indoor unit to the hanger bolts.
If required, it is possible to suspend the unit to the beam, etc. Directly
by use of the bolts without using the hanger bolts.

When the dimensions of main unit and ceiling holes does not match,
it can be adjusted with the slot holes of hanging bracket.

Note

Adjusting to the levelness

(a) Adjust the out-of levelness using a level or by the following method.

Make adjustment so that the relation between the lower surface
of the unit proper and water level in the hose becomes as given
below.

(b) Unless the adjustment to the levelness is made properly,
malfunctioning or failure of the float switch may occur.

Tap selection on blower unit

(When the high performance filter is used.)

Taps of blower unit are set at the standard selection at the shipping
from factory. Where the static pressure is raised by employing such
option as the high performance filter, etc., change the connection of
connectors provided at the flank of control box as shown below.

PVC hose

Piping side

Supply water

Water level

0~5 mm

(0~0.2")

Bring the piping side slightly lower.

Hanging bolt

M10 nut

Main unit

M10 washer

M10 spring washer

Red

Yellow

White

Standard tap (at shipping) High speed tap

Black

White

Connector white

Connector white

Control box side

Moter side

Moter side

Red

Blue

Red

Yellow

White

Blue

Red

Yellow

White

Blue

White

Blue

Red

1. Preparation for suspending the unit

a.Size of hole at ceiling and position of hanging bolts

<Combination with silent panel>

b.Hanger bolts installation

Use care of the piping direction when the unit is installed.

Hanging bolt M10

Hole-in anchor
Hole-in plug

Insert

Concrete

Indoor Unit

150

A

B

C

Hanging bolt position

Ceiling hole size

Panel dimensions

300

30

30

Ceiling ~ panel
wrap dimensions

Ceiling ~ panel

wrap dimensions

Hanging bolt position

Ceiling hole size

Panel dimensions

75

D

E

F

70

Pipe connection

side

150

A

B

C

Hanging bolt position

Ceiling hole size

Panel dimensions

300

30

30

Ceiling ~ panel
wrap dimensions

Ceiling ~ panel

wrap dimensions

Hanging bolt position

Ceiling hole size

Panel dimensions

75

D

E

F

70

Pipe connection

side

Installation Procedure

23

AD12MS1ERA AD12MS1ERA(D) AD24MS1ERA AD24MS1ERA(D)
AD18MS1ERA AD18MS1ERA(D) AD28NS1ERA(S) AD36NS1ERA(S)
AD24MS2ERA AD24MS2ERA(D) AD48NS1ERA(S)
AD28MS2ERA(S) AD28MS2ERA(S)(D)

Dimensions

A(mm)

B(mm)C(mm)

Model

D(mm)E(mm) F(mm)

987
1172

1437
1622

1497
1682

545
480

690
625

750
685

705
983

1155
1433

1215
1493

595
595

740
740

800
800

AD28NS1ERA(S) AD36NS1ERA(S)
AD48NS1ERA(S)

AD24MS1ERA AD24MS1ERA(D)

AD12MS1ERA AD12MS1ERA(D)
AD18MS1ERA AD18MS1ERA(D)

AD24MS2ERA AD24MS2ERA(D)
AD28MS2ERA(S) AD28MS2ERA(S)(D)

Drain Piping

Drain piping should always be in a downhill grade (1/50~1/100) and avoid riding across an elevation or making traps.

When connecting the drain pipe to unit, pay suffcient attention
not to apply excess force to the piping on the unit side. Also, fix
the piping at a point as close as possible to the unit.

For unit with water pump drain pipeuse hard PVC general purpose
pipe VP which can be purchased locally. When connecting, insert
a PVC pipe end securely into the drain socket before tightening
securely using the attached drain hose and clamp. Adhesive must
not be used for connection of the drain socket and drain hose
(accessory).

Drain hose

Stage
difference
part

Drain socket

Drain socket

Main unit

VP(field purchased)

Pipe cover(large)
[for insulation]
(accessory)

VP(field purchased)

Pipe cover
[for insulation]
(field purchased)

Drain hose
(accessory)

Pipe cover(small)
[for insulation]
(accessory)

Clamp
(accessory)

Adhesion

Do not pipe under water

Keep free from traps

Avoid riding across an elevation

Air vent

Improper pipingGood piping

1.5m ~ 2m

Suspension
bolts

Heat
insulation

A downhill grade
of 1/100 or more

(b)

(c)

VP-30

Secure the elevation as high as possible
(approx. 100 mm)

A downhill grade of
1/100 or more

Right overhead

Drain hose

Joint for VP
(Local procurement)

600

(Maximum local drain up dimension)

290~325mm

Avoid positioning the drain piping outlet at a place where generation
of odor may be stimulated. Do not lead the drain piping direct into
a sewer from where sulfur gas may generate.

(d)

(e)

(f)

(h)

(a)

When constructing drain piping for several units, position the
common pipe about 100 mm below the drain outlet of each unit
as shown in the sketch. Use VP-30(11/4") or thicker pipe for this
purpose.

The hard PVC pipe put indoor side should be heat insulated. Do
not ever provide an air vent.

The height of the drain head can be elevated up to a point 500
mm above the ceiling, and when an obstacle exists in the ceiling
space, elevate the piping to avoid the obstacle using an elbow
or corresponding gadget. When doing this, if the stretch for the
needed height is higher than 500 mm, the back-flow quantity of
drain at the event of interruption of the operation gets too much
and it may cause overflow at the drain pan. Therefore, make the
height of the drain pipe within the distance given in the sketch
below.

Drain Pipe

For unit without water pump

For unit without water pump,please refer to the digram and select
drain pipe size according to drain opening inner diameter size.
The drain pipe shall be slant downwards (greater than 1/100).
The horizontal length of the drain pipe shall be less than 20 m.
In case of long pipe, supports shall be provided every 1.5~2m to
prevent wavy form.
Central piping shall be laid out according to the right figure.
Take care not to apply external force onto the drain pipe connection
part.

(g)

For unit with water pump

Installation Procedure

24

1.5m~2m
Support

Insulation (supplied by the user)

Down slope above 1/100

AD28NS1ERA(S) AD36NS1ERA(S)
AD48NS1ERA(S)

AD24MS1ERA AD24MS1ERA(D) 15.5mm

AD12MS1ERA AD12MS1ERA(D)
AD18MS1ERA AD18MS1ERA(D) 21mm
AD24MS2ERA AD24MS2ERA(D)
AD28MS2ERA(S) AD28MS2ERA(S)(D)

33mm

Unit model The size of d rain opening

Installation work for air outlet ducts

Calculate the draft and external static pressure and select the length,
shape and blowout.

A Blowout duct

2-spot, 3-spot and 4-spot with 200 type duct are the standard
specifications.

Note (1) Shield the central blowout hole for 2-spot.
(2) Shield the blowout hole around the center for 3-spot.

Limit the difference in length between spots at less than 2:1.
Reduce the length of duct as much as possible.
Reduce the number of bends as much as possible. (Corner R should
be as larger as possible.)
Use a band. etc. to connect the main unit and the blowout duct
flange.
Conduct the duct installation work before finishing the ceiling.

Connection of suction, exhaust ducts

a.Fresh air inlet

Inlet can be selected from the side or rear faces depending on the
working conditions.
Use the rear fresh air inlet when the simultaneous intake and exhaust
is conducted. (Side inlet cannot be used.)

b.Exhaust (Make sure to use also the suction.)

Use the side exhaust port.

Good exampleBad exampleBad example

Exhaust hole

State seeing from top of unit

Side fresh air inlet

Rear fresh air inlet

Fig.1

Fig.2

Drainage Test

Conduct a drainage test after completion of the electrical work.
During the trial, make sure that drain flows properly through the
piping and that no water leaks from connections.
In case of a new building, conduct the test before it is furnished
with the ceiling.
Be sure to conduct this test even when the unit is installed in the
heating season.

Attached drain hose clamp

Drain piping

Main unit

Drain situation can be checked with transparent socket

Remove grommet.
Make sure to install
it back after test.

Insert water supply hose
for 20 mm ~ 30 mm to
supply water.
(Insert hose facing
toward bottom.)

Pour water into a convex joint.

Procedures

Supply about 1000 cc of water to the unit through the air outlet
using a feed water pump.
Check the drain while cooling operation.

Before the electrical work has not been completed, connect a convex
joint in the drain pipe connection to provide a water inlet. Then, check
if water leaks from the piping system and that drain flows through
the drain pipe normally.

(1)
(2)

(3)

(4)

(a)

(b)

Ceiling surface

Heat
insulation

Suction panel
(Silent panel)

Air conditioner main unit

Special
blowout
(Option)

Blowout duct
(Optional or
marketed
item)

Hole for check

special inlet
(option) (with air
filter)

inlet duct
(optional or
marketat item)

B

A

C

Drain Pipe

Air Duct

Installation Procedure

25

Installation Procedure

Electrical wiring

WARNING

DANGER OF BODILY INJURY OR DEATH

TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING ANY ELECTRIC
CONNECTIONS.
GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS.

Precautions for electrical wiring

Electrical wiring work should be conducted only by authorized personnel.
Do not connect more than three wires to the terminal block. Always use round type crimped terminal lugs with insulated
grip on the ends of the wires.
Use copper conductor only.

Installation Procedure

26

Selection of size of power supply and interconnecting wires

Select wire sizes and circuit protection from table below. (This table shows 20 m length wires with less than 2% voltage drop.)

Wiring connection

Make wiring to supply power to the outdoor unit, so that the power for the indoor unit is supplied by terminals.

Item

Model

Phase

Switch

breaker

(A)

Circuit breaker

Overcurrent

protector

rated capacity

(A)

Power source

wire size

(minimum)

(mm2)

Switch

breaker(A)

Earth leakage breaker

Leak

current(mA)

301 40 30 6.0 40

AD48NS1ERA(S)(Outdoor 3 phase type)

Outdoor unit
terminal block

Indoor unit
terminal block

Power supply:1PH,220-230V~,50Hz

Y/G

1 2 3

Y/G

1 2 3

L N

Outdoor unit
terminal block

Indoor unit
terminal block

Power supply:380-400V, 3N~,50Hz

Y/G

1 2 3

Y/G

1 2 3

R S T N

301 40 26 4.0 40

AD28MS2ERA(S) AD28MS2ERA(S)(D)
AD28NS1ERA(S) AD36NS1ERA(S)
AD48NS1ERA(S)

AD12MS1ERA AD12MS1ERA(D)
AD18MS1ERA AD18MS1ERA(D)
AD24MS1ERA AD24MS1ERA(D)
AD24MS2ERA AD24MS2ERA(D)

AD12MS1ERA AD12MS1ERA(D)
AD18MS1ERA AD18MS1ERA(D)
AD24MS1ERA AD24MS1ERA(D)
AD24MS2ERA AD24MS2ERA(D)
AD28MS2ERA(S) AD28MS2ERA(S)(D)
AD28NS1ERA(S) AD36NS1ERA(S)
AD48NS1ERA(S)(Outdoor single phase type)

Address:Haier Industrial Park,Qianwangang Road,Eco-Tech Development Zone,Qingdao 266555,Shandong,P.R.C.
Contacts: TEL [phone]; FAX [phone]
Website: www.haier.com