Johnson Controls York YHFFXC(H)036-60BBA-FX, York YHFFXC(H)060-60BBA-FX, York YHFFXC(H)048-60BBA-FX User Manual

USER'S MANUAL

Floor Ceiling R22 60Hz

YHFFXC(H)036-60BBA-FX

Raed this manual before installation and operation
Make sure that it is well kept for later reference

0150510281

Contents

Cautions
Safety Precautions
Parts and Functions
Operation
Maintenance
Operation Tips
Troubleshooting
Installation Procedure
Test Run

10
10
11
13
19

3
5
6
8

English

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

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.

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.

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.

When the indoor unit is turned on, the PCB will test if swing motor is O.K., and then fan motor will start up.So there is a few
seconds to wait.

In cooling mode,the flaps will swing automatically to a fixed position for anti-condensating.

3

Cautions

Specifications

The refrigerating circuit is leak-proof.

For all the models in this manual, the all-pole discon-nexion connection method should be applied in the power supply.
Such means for disconnection must be incorporation in the fixed wiring.

Temperature and Humidity Range

Cooling

Heating

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 purposes other than cooling, heating, dehumidifying and ventilation of rooms 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 6.3A/250VAC.

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

43/26 C
18/- C

26.7 C
15/- C

23.9/18.3 C

-7/- C

4

Safety Precautions

WARNING

The breaker of the air conditioner should be all-pole switch, and the distance between its two contacts should be no less
3 mm. Such means for disconnection must be incorporation in the fixed wiring.
Use copper wire only. All the cables shall have got the local authentication certificate.
The power supply connects from the outdoor side. The connecting cable and the power cable are self-provided.
The parameter of connecting cable: H05RN-F 5G 0.75mm

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. If the supply cord is damaged, it must be replaced by the manufacturer
or authoried service agent in order to avoid a hazard.
In the event of a malfunction (burning smell, etc.), stop operation immediately, turn off the circuit breaker, and consult
authorized service personnel.

WARNING

Provide occasional ventilation during use.
Do not direct air flow at fire places or heating apparatuses.
Do not place objects on the air conditioner or climb onto it .
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.

2

H05RN-F 3G 1.0mm

2

5

Parts and Functions

Indoor unit

9

8

(1) Operating Control Panel
(2) Emergency Switch
(3) Power Indicator Lamp
(4) OPERATION Indicator Lamp
(5) TIMER Indicator Lamp
(6) Compressor Lamp
(7) Remote Receiver
(8) Inlet Grill ( Filter inside )
(9) Front Panel

1

1

POWER OPER TIMER

3

4 5 6

COMP

EMER

2

7

Note :

For the wired control type unit, the unit state should be checked by 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.

6

Parts and Functions

Base Operation

Remote controller

SPEED

1. Unit start

Press ON/OFF on the remote controller, unit starts.

2.Select operation mode

Press MODE button. For each press, operation mode
changes as follows:

Remote controller:

AUTO COOL DRY FAN HEAT

3.Select temp.setting

/

Press button

TEMP+

TEMP+

Every time the button is pressed, temp.setting
increase 1

TEMP-

o

C,if kept depressed, it will increase

rapidly

TEMP-

Every time the button is pressed, temp.setting

decrease 1

o

C,if kept depressed, it will decrease

rapidly

Select a desired temperature.

4.Fan speed selection

Press FAN SPEED button. For each press, fan speed

changes as

Remote controller:

Air conditioner is running under displayed fan speed.
When FAN is set to AUTO, the air conditioner
automatically adjusts the fan speed according to room
temperature.

Operation

Mode

AUTO

COOL

DRY

FAN

follows:

etomeR

Display

Board

rellortnoC

LOW

MED

Under the mode of auto operation, air conditioner will
automatically select Cool or Heat operation according
to room temperature.

air conditioner

according to room

In DRY mode, when room temperature becomes
lower than temp.setting+2
at LOW speed regardless of FAN setting.

In FAN operation mode, the unit will not operate in
COOL or HEAT mode but only in FAN mode ,AUTO is
not available in FAN mode.And temp.setting is disabled.
In FAN mode,SLEEP operation is not available.

HI

Note

When FAN is set to AUTO, the

automatically adjusts the fan speed

temperature.

AUTO

o

C,unit will run intermittently

HEAT

7

Operation

Sleep Operation

Before going to bed,you can simply press the SLEEP
button and unit will operate in SLEEP mode and bring
you a sound sleep.

Use of SLEEP function

After the unit starts,set the operation status,
then press SLEEP button before which the
clock must be adjusted and time being set.

Operation Mode

1. In COOL,DRY mode

1 hours after SLEEP mode starts,temp.will become

O

1 higher than temp.setting.After another 1 hours,

C

temp.rises by 1 futher.The unit will run for further
6 hours then stops Temp. is higher than temp.
setting so that room temperature won
for your sleep.

be too low

SLEEP operation starts SLEEP operation stops

O

C

Approx.6hrs

In AUTO mode

3.

The unit operaters in corresponding sleep mode
adapted to the automatically selected operation
mode.

4. In FAN mode

It has no SLEEP function.

5.Set the wind speed change when sleeping

If the wind speed is high or middle before
setting for the sleep, set for lowing the wind
speed after sleeping.
If it is low wind, no change.

Note

When TIMER function is set, the sleeping function
can't be set up .After the sleeping function is set up

,

if user resets TIMER function, the sleeping function
will be cancelled;the machine will be in the state of
timing-on.

POWER/SOFT Operation

(1)

POWER Operation

When you need rapid heating or cooling, you can use this
function.

high speed of AUTO fan mode. In HEAT mode, fan speed
automatically takes medial speed of AUTO fan mode.

(2)

You can use this function when silence is needed for
rest or reading. In SOFT operation mode, fan speed

automatically takes low speed of AUTO fan mode.

In COOL mode, fan speed automatically takes

SOFT Operation

Rises 1

Rises 1OC

O

C

Unit stop

1 hr

1 hr

Temp.setting

In COOL, DRY mode

In HEAT mode

2.

1 hours after SLEEP mode starts,temp will
become 2 lower than temp.setting.After
another 1 hours,temp decrease by 2

O

C

O

C

futher.After more another 3hours,temp.rises

O

C

by 1 futher.The unit will run for further 3
hours then stops.Temp.is lower than temp.
setting so that room temperature won
too high for your sleep.

be

Temp.setting

1 hr

1 hr

SLEEP
operation starts

Decreases 2OC

Decreases 2

3 hrs

Unit stop

O

C

3 hrs

Rises 1OC

SLEEP
operation stops

In HEAT mode

Note

£”

During POWER operation, in rapid HEAT or COOL
mode ,
distribution. Long period SOFT operation will cause
effect of not too cool or not too warm.

To cancel POWER or SOFT operation

Press POWER/SOFT button again ,POWER or SOFT

disappear

s.

NOTE:

Cooling only unit do not have displays and functions
related with heating.

8

Operation

Timer On/Off On-Off Operation

Set clock correctly before starting TIMER operation.

1.After unit starts, select your desired operation mode.

2.Press TIMER button to change TIMER mode. Every
time the button is pressed, display changes as follows:
Remote controller:

BLANK

TIMER ON TIMER OFF TIMER ON-OFF

Then select your desired TIMER mode (TIMER ON or
TIMER OFF or TIMER ON-OFF). " "or " "will flash.

3.Press TIME+ /TIME- button to set time.
It can be adjusted within 24 hours.

4.After setting correct time, press SET button to confirm
" "or" " on the remote controller stops flashing.

5.Cancel TIMER mode
Just press TIMER button several times until TIMER mode
disappears.
Hints:
After replacing batteries or a power failure happens, time
setting should be reset.
Remote controller possesses memory function,when use
TIMER mode next time, just press SET button after mode
selecting if time setting is the same as previous one.
According to the Time setting sequence of TIMER ON or
TIMER OFF, either Start-Stop or Stop-Start can be
achieved.

Healthy airflow Operation

1.Press ON/OFF to starting

Setting the comfort work conditions.

2.The setting of healthy airflow function

1).Press the button of healthy airflow

display

blows direct to the body.

2).Press the button of healthy airflow again, appears on
the displa
blows direct to the body.

3.The cancel of the healthy airflow function
Press the button of healthy airflow again,
working under the condition before the setting of healthy

airflow function.
Notice: Do not direct the flap by hand. Otherwise, the

grille will run incorrectly. If the grille is not run correctly, stop

. Horizontal airflow sending.

. Downward airflow sending.

y

for a minute and then start, adjusting by remote
controller.

Note:

1.After setting the healthy airflow function, the position

grill is fixed.

2.In heating, it is better to select the

3.In cooling, it is better to select the

4.In cooling and dry, using the air conditioner for a long

time under the high air humidity, condensate water may
occur at the grille .

, appears on the

Avoid the airflow

Avoid the airflow

the unit

mode.
mode.

goes on

9

Maintenance

Clean the air filter

1.

Pull the filters upward to remove them from the Intake Grill.

2.

Clean the air filter: Remove the dust from the filters by vacuum cleaner or washing
them. After washing, allow the air filters to dry thoroughly in an area protected from
sunlight.

3.

Re-attach the air filters to the Intake Grill. Press the two buttons on the filters until
you hear a sound of click.

Maintenace of indoor units

When used for extended periods, the unit may accumulate dirt inside, which reduces its performance. We recommend
that the unit is inspected regularly, in addition to your own cleaning and care. For more information, consult authorized
service personnel.
When cleaning the unit's body, do not use water hotter than 40 C, harsh abrasive cleansers, or volatile agents like
benzene or thinner.
Do not expose the unit body to liquid insecticides or hairsprays.
When shutting down the unit for one month or more, first allow the Fan mode to operate continuously for about half a
day to allow internal parts to dry thoroughly.

Operation tips

Instructions relating to heating are applicable only to "HEAT & COOL TYPE"

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.

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).

10

Troubleshooting

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?

No outlet air or fan speed can't be changed
in dry mode.

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, the 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

Unit will reduce fan speed repeatedly and automatically if room temp. is
too low in dry operation.

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.

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.

11

Troubleshooting

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? Are there any obstacles in inlet or

outlet grill?

Any doors or windows left open?

Poor cooling

Is there any direct sunlight in the room? If there are unexpected heat sources

Too many people in the room?

in the room?

Cold air blows out (in heating mode). Is air conditioner in standby condition in heating mode?

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.

Diagnosis for models

Failure Description Possible CauseLED on PCB flash times

1

2

3

4

5

10

indoor ambient temp sensor failure.

indoor coil temp.sensor failure

over voltage/under voltage

outdoor until abnormal

EEPROM abnormal EEPROM data missing.

indoor drainage failure

Sensor broken down or short circuit
for more than 2min continuously.

Sensor broken down or short circuit
for more than 2min continuously.

power supply over voltage or under
voltage.

outdoor until abnormal can not
resume.

Float switch broken down for more
than 10min continuously

.

12

Installation Procedure

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 air-conditioner may cause fire hazard.
Installed electrical-leaking circuit breaker.

It easily cause electrical shock without circuit breaker.

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.

Wiring

Air-conditioner should be equipped with special power supply wire.

Location

Air-conditioner should be located in well-vented and easily accessible place.
Air-conditioner should not be located in the following places:
(1) Places with machine oils or other oil vapours.
(2) Seaside with high salt content in the air.
(3) Near hot spring with high content of sulfide gases.
(4) Area with frequent fluctuation of voltage e.g. factory, etc.
(5) In vehicles or ships.
(6) Kitchen with heavy oil vapour or humidity.
(7) Near the machine emitting electric-magnetic waves.
(8) Places with acid, alkali vapour.
Choose the following locations:
(1) Capable of supporting air conditioner weight. Don't increase operating noise and vibration.
(2) Hot vapour from outdoor unit outlet and operating noise don't disturb neighbour.
(3) No obstacles around the outdoor unit outlet.
TV, radio, acoustic appliances etc. are at least 1 m far away from the indoor unit, outdoor unit, power supply wire,
connecting wire, pipes, otherwise images may be disturbed or noises be created.
As required, take measures against heavy snow.

Installation Precaution

Earthing

For authorized sevice personnel only

WARNING

(1) For the room air conditioner to operate satisfactorily, install it as outlined in this installation manual.
(2) Connect the indoor unit and outdoor unit with the room air conditioner piping and cords available from our standard
parts. This installation manual describes for the correct connections so that the installation set available from our
standard parts should be used.
(3) Installation work must be performed in accordance with national wiring standards by authorized personnel only.
(4) Never cut the power cord, lengthen or shorten the cord, or change the plug. Do not use an extension cord.
(5) Plug in the power cord plug firmly. If the receptacle is loose, repair it before using the room air conditioner.
(6) Do not turn on the power until all installation work is done.

CAUTION

(1) Be careful not to scratch the room air conditioner when handing it.
(2) After installation, explain correct operation to the customer, according to the operating manual.
(3) Let the customer keep this installation manual because it will be used when the room air conditioner is serviced or moved.

13

Installation Procedure

SELECTING THE MOUNTING POSITION

WARNING

Install at a place that can withstand the weight of the indoor unit and install it positively so that the unit will not topple or
fall.

CAUTION

Do not install the unit where there is the danger of combustible gas leakage.
Do not install near heat sources.
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) Install the indoor unit level on a strong wall which is not subject to vibration.
(2) The inlet and outlet ports should not be obstructed, and the air should be able to blow all over the room.
(3) Do not install the unit where it will be exposed to direct sunlight
(4) Install the unit where connection to the outdoor unit is easy.
(5) Install the unit where the drain pipe can be easily installed.
(6) Take servicing, etc. into consideration and leave the spaces shown in "Maintenace space dimension" .
(7) Install the unit where the filter can be removed

ACCESSORIES FOR INSTALLATION

The following installation parts are optional parts. Use them as required.

Optional parts

Adhesive tape

Saddle (L.S) with screws

Drain hose

Heat insulation material

Piping hole cover

Putty

Plastic clamp

MAINTENANCE SPACE DIMENSION
For ceiling installation

Ceiling

INDOOR UNIT

>3"(80mm) >6"(150mm)

>0.4"(10mm)

For half concealed installation

INDOOR UNIT

>3"(80mm)

Ceiling panel

>6"(150mm)

Ceiling panel

>0.4"(10mm)

14

Installation Procedure

INSTALLING THE INDOOR UNIT

Connection pipe requirement

Model

Liquid side Gas side

Diameter

Maximum
length

Maximum height
(between indoor
and outdoor)

YHFFXC(H)036BBA-FX

YHFFXC(H)048BBA-FX

YHFFXC(H)060BBA-FX

9.52 mm 19.05mm 20 m

9.52 mm 19.05mm 30 m 15m

12.7 mm 22.22mm 30 m

10m

15m

Install the room air conditioner as follows

1. Remove the intake grill and side cover

(1) Remove the Air filters
(2) Remove the intake grilles
(3) Remove the Side cover (Right and left side)
(4) This air conditioner can be set up to intake fresh air. The information about how to install for fresh-air intake, refer to
"Fresh air intake".

Air filter

Intake grille

Side cover A (Right side) Side cover A (Left side)

2. Location of ceiling supension bolts

30mm

Suspension bolt pitch Amm

30mm

Dimensions (Space Required for
installation)

10mm
155mm

INDOOR UNIT (TOP VIEW)

Suspension bolt should
extend outward 30 to 50mm.

For half-concealed installation

Supension-bolt pitch should be as shown below

Ceiling Opening:Amm40mm 40mm

Ceiling Opening
640mm

Model

YHFFXC(H)036BBA-FX

YHFFXC(H)048BBA-FX
YHFFXC(H)060BBA-FX

15mm

Ceiling panel

Dimensions

A(mm)

1248

1530

300mm

Ceiling panel

Suspension bolt should
extend outward 30 to 50mm.

15

Installation Procedure

3. Drilling the holes and attaching the suspension bolts

Ceiling panel

Special nut A (included)

(1) Drill 25mm holes at the suspension-bolt locations. The two special nuts are
provided with the unit. The M10 nut must be obtained locally.
(2) Install the bolts, then temporarily attach Special nuts A and B and a normal
M10 nut to each bolt.

Bolt strength: 980 to 1470 N (100 TO 150 kgf)

10 to 15 mm

Special nut B (included)
M10 nut (Obtained locally)

If using anchor bolts

(1) Drill holes for anchor bolts at the locations at which you will set the suspension bolts. Note that anchor bolts must be
obtained locally.
(2) Install the anchor bolts, then temporarily attach special nut "B" (included) and a locally-procured M10 nut to each of
the bolts.

Anchor-bolt strength: 980 to 1470 N (100 TO 150 kgf)

Special nut B(included)

M10 Nut
(Obtaied locally)

4.Installing the indoor unit

10 to 15 mm

M10 Nut (Obtaied locally)

Ceiling

Ceiling panel

(1) Lift unit so that suspension bolts pass through suspension fittings at
the sides (four places),and slide the unit back.

Wall

(2) Fasten the indoor unit into place by tightening-up the special "B" bolts
and the M10 nuts. Make sure that unit is secure and will not shift

Wall

back and forth.

For half-concealed installation

When installing the indoor unit in a semi-concealed orientation, make

Glass wool insulate
(10 to 20mm thick )

sure to reinforce the insulation of the unit on all sides. Drops of water
may fall from the unit if it is not thoroughly insulated.

Indoor unit

CAUTION

(Top view)

In order to check the drainage, be sure to use a level during installation
of the indoor unit. If the installation site of the indoor unit is not level,
water leakage may occur.

Ceiling panel

Wall

5.Installing the coupler heat insulation

After checking for gas leaks, insulate by wrapping insulation around the two parts (large and small) of the indoor unit
coupling, using the coupler heat insulation. After installling the coupler heat insulation, wrap both ends with vinyl tape so
that there is no gap. Secure both ends of the heat insulation material using nylon fasteners.

Indoor unit

Coupler heat insulation(large)

Coupler pipe (large)

Coupler pipe (small)

Coupler heat insulation(small)

Indoor unit

Nylon fastener (large)

No gap

Coupler heat
insulation

Nylon fastener (small)

When using an auxiliary pipe, make sure that the fastener used is insulated in the same way.

Note:

When installing the unit on the floor, fix the four rubber base feet in the accessories on the bottom plate of the unit with
four 4x16 screws and 4 flat washers, as the position in the figure.

A

The bottom plate of the unit.

A

4:1

rubber base foot

4x16 screw

flat washer

16

Installation Procedure

INSTALLING THE DRAIN HOSE

Install the drain pipe with downward gradient (1/50 to 1/100) and so there are no rises or traps in the pipe.
Use general hard polyvinyl chloride pipe (VP25) (outside diameter 38 mm)
During installation of the drain pipe, be careful to avoid applying pressure to the drain point of the unit.
When the pipe is long, install supporters.
Do not perform air bleeding.
Always heat insulate (8mm or over thick) the indoor side of the drain pipe.

GOOD

Supporter

BAD

5 to 6.5 ft
(1.5 to 2m)

BAD

(1) Install insulation for the drain pipe

Cut the included insulation material to an appropriate size and adhere it to the pipe.

Drain pipe

Insulation for Drain pipe
(To be obtained locally.
Length should be at least 8mm.)

Drain pipe insulation (accessories)

Indoor unit (drain port)

Indoor unit

(2) When drain pipe is put in the right rear position

Fasten the drain pipe with cable VT so that there is a proper slope for drain pipe to
exit from the indoor unit.

No gap

Drain pipe insulation

Drain pipe

10mm or over

Cable VT

drain pipe

(3) Throttle pipe should be installed between indoor unit and connecting pipe. When
connect with 12.7mm liquid pipe and 22.22 gas pipe, should do installation in
following way. The throttle pipe was put in accessory bag in indoor unit

Indoor unit

L3 L4

L1 L2

Outdoor unit

L1: 19.05mm, L2: 22.22mm
L3: 9.52mm, L4: 12.7mm
L1 500mm, L3 500mm

Indoor unit
(Rear view)

Note:
When welding the pipe ,please blow nitrogen to prevent oxidation,with about 0.02MPa pressure of nitrogen
flow .otherwise , the oxide can damage the outdoor unit.

17

Installation Procedure

ELECTRICAL WIRING
Connect wiring to the terminals

A.For solid core wiring (or F-cable)

(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation to about 15/16"(25mm) to expose the
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 tighthen securely with the terminal screw using a
screwdriver.

B.For strand wiring

(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation to about 3/8"(10mm) to expose the
solid wire.
(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 screwdriver.

A. Solid wire

Insulation

Strip 15/16"(25mm)

Loop

B. Strand wire

Strip 3/8"(10mm)

Round
terminal

Round
terminal

Wire

Fix 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.
Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.

Screw with
special washer

Terminal
board

Wire

Insulation tube

Screw with
special washer

Round
terminal

Cord clamp

Connect indoor unit and outdoor unit

(1) Remove the cord clamp.
(2) Process the end of the connection cords to the dimensions shown in wiring diagram.
(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.

WARNING

The power cable and connecting cable are self-provided.
Always use a special branch circuit and install a special receptacle to supply power to the room air conditioner.
Use a circuit breaker and receptacle matched to the capacity of the room air conditioner.
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.
Perform wiring work in accordance with standards so that the room air conditioner can be operated safely and positively.
Install a leakage circuit breaker in accordance with the related laws and regulations and electric company standards.

CAUTION

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.
When the voltage is low and the air conditioner is difficult to start, contact the power company the voltage raised.

18

Installation Procedure

FRESH AIR INTAKE

1. Open up the knockout hole for the fresh air intake. If using half-concealed
installation, open up the top knockout hole instead.

CAUTION

When removing the cabinet (iron plate), be careful not to damage the indoor
unit internal parts and surrounding area (outer case).
When processing the cabinet (iron plate), be careful not to injury yourself
with burrs,etc.

2. Fasten the round flange (optional) to the fresh air intake. If using half­ concealed installation, attach to the top.

3. Connect the duct to the round flange.

4. Seal with a band and vinyl tape,etc. so that air does not leak from the
connection.

For half-concealed

Round duct (option part)

Duct

Test Run

Check items

1. Indoor unit

Is operation of each button on the remote control unit normal?
Does each lamp light normally?
Do not air flow direction louvers operate normally?
Is the drain normal?

2. Outdoor unit

Is there any abnormal noise and vibration during operation?
Will noise, wind, or drain water from the unit disturb the neighbors?
Is there any gas leakage?

Customer guidance

Explain the following to the customer in accordance with the operation manual:

(1) Starting and stopping method, operation switching, temperature adjustment, timer, air flow switching, and other remote
control unit operations.
(2) Air filter removal and cleaning, and how to use air louvers.
(3) Give the operation and installation manuals to the customer.

19

2010 Johnson Controls, Inc.

Johnson Controls reserve the right to change product features without prior notice.

www.johnsoncontrols.co m AHFFXCBA--120831