Whirlpool AMD 303 User guide

Brand: Whirlpool

Model: AMD 303

Type: User guide

This manual is also suitable for

BEFORE USING THE APPLIANCE

To make the most out of your new appliance,

please read the user instructions carefully and keep

them handy for future consultation.

Before using the appliance please follow and

set according to the below indications:

Remote Control (RC) presetting:

Each time the batteries are replaced in the remote

control, the RC is pre-set on Heat pump.

If the air conditioner that you purchased is a

cooling only, then the pre-set on Heat pump will

not bring any changes.

Auto-Restart presetting Function:

To set the auto-restart function, press the

Emergency button (ON/OFF) on the indoor unit

for at least 5 seconds

A buzz sound will signal that the auto-restart

function is set and the air conditioner is in standby.

To cancel the auto-restart function, repeat the

above steps.

SAFETY PRECAUTIONS

• Do not install the appliance if it is connected to

the power supply.

• The Installation and service/repair must be

performed by a qualified technician, in

compliance with the producer's instructions and

following local safety norms. Do not repair or

replace any parts of the appliance unless it is

specifically written in the user instructions.

• The grounding of this appliance is compulsory.

• Make sure that the power supply cord is long

enough to allow the right connection. Do not

use any extension cord for power supply.

• Do not pull the power supply cord to remove it

from the socket.

• Do not twist or press the power supply cord,

and make sure it is not broken.

• Once installation is completed, the electric

components must not be accessible to the users.

• Do not touch the operation buttons when your

hands are wet and don't use the appliance when

you are barefoot.

• Physically or mentally disabled people, children

and people without any experience with the

product are only allowed to use the appliance if

they have had specific training on how to

operate the appliance by a person responsible

for their security and well-being. The appliance

is not intended for use by disabled people and

very young children without supervision.

AIR CONDITIONER PRECAUTIONS

Please strictly follow the below instructions:

• Long and direct exposure to cool air might be

harmful to health. It is advisable to set the

louvers in order to avoid direct cool air and

deflect it within the room.

• Prevent the air flow from reaching the gas

burners and stoves.

• Upon malfunctioning first turn the appliance off

by pressing the ON/OFF button on the remote

control, then disconnect it from the mains.

• Do not place any objects on the outdoor unit.

• This product contains Fluorinated Greenhouse

Gases covered by the Kyoto Protocol, the

refrigerant gas being in a hermetically sealed

system. Refrigerant gas: R410a has a

GlobalWarming Potential (GWP) 1975.

SAFEGUARDING THE ENVIRONMENT

• This appliance has been made of recyclable or

re-usable material. Scrapping must be carried

out in compliance with local waste disposal

regulations. Before scrapping it, make sure to

cut off the mains cord so that the appliance

cannot be re-used.

• For more detailed information on handling and

recycling of this product, contact your local

authorities who deal with the separate collection

of rubbish or the shop where you bought the

appliance.

SCRAPPING OF PACKAGING

• The packaging can be 100% recycled as

confirmed by the recycling symbol . The

various parts of the packaging must not be

dispersed in the environment, but must be

scrapped in line with local authority regulations.

SCRAPPING OF APPLIANCE

• This appliance is marked according to the

European Directive 2002/96/EC, Waste

Electrical and Electronic Equipment (WEEE).

• By ensuring that this product is disposed of

correctly, you will help to prevent potentially

negative consequences for the environment and

for human health.

• The symbol on the product or on the

documents accompanying the product indicates

that this appliance should not be treated as

household waste, but must be given to the

appropriate local gathering place where electric

and electronic appliances are stored and

recycled.

IDENTIFICATION OF PARTS

1. Outdoor unit and Indoor unit

1. Filter

2. Front Panel

3. Air inlet

4. Display

5. Deflector

6. Left / Right deflector (Manual operation)

Outdoor unit

7. Air inlet

8. Connecting pipe

9. Drain hose

10. Air outlet

11. Drain opening

The figure above is only a simple presentation of the unit, it may not match the external appearance of the

unit you purchased.

2. Display Indicators

Temperature indicator

Displays set or room temperature.

COOL MODE indicator lamp

HEAT MODE indicator lamp

Sleep indicator

It lights up during sleep mode.

Timer indicator lamp

If the batteries in the remote control are flat, or the remote control is faulty, use the Emergency operation

switch.

3. Emergency Operation switch

The places of e different models maybe

different, but all of the emergency operation switch

of emergency operation switches are shown by the

icon .

• Cooling only mode

Every time the switch is pressed, it changes in sequence from COOL → STOP.

• Heat pump mode

Every time the switch is pressed, it changes in sequence from COOL → HEAT → STOP.

Emergency

Operation switch

The following table shows the set temperature, fan speed and deflector values during emergency operation.

Hold the knob and move the deflector to change right/left airflow direction. Never attempt to adjust the

deflector during operation as the fan rotates at very high speed and may injure your fingers.

4. Horizontal Louver

Mode Set temperature Fan speed Deflector

Cooling 24 °C High Swing

Heating 24 °C High Swing

A. Signal window: The signal is sent to the indoor unit.

B. OPERATION DISPLAY: It displays the current settings.

C. JET button: Used to activate rapid cooling.

D. ON/OFF button: When this button is pressed, the appliance starts

if it is powered up or stops if it is already running.

E. FAN button: Press this button to change the fan speed of the

indoor unit in the order of Low - Medium - High - Auto.

F. SWING button: Used to stop or start vertical adjustment louver

swinging and set the desired up/down airflow direction.

G. CLOCK button: Please see "Timer operation".

H. 6TH SENSE button: Used to enter fuzzy logic smart operation

I. TEMPERATURE ADJUSTMENT buttons: Used to set time in

TIMER on/off mode and REAL TIME CLOCK. Every press of the

button increases the setting temperature by 1°C. And the highest

setting temperature is 31°C. Every press of the button decreases

the setting temperature by 1°C. And the lowest setting

temperature is 16°C.

J. TIMER ON button: Please see "Timer operation".

K. TIMER OFF button: Please see "Timer operation".

L. MODE button: Press this button to change the operation mode in

the order of Cool - Dry - Heat - Fan.

M. SLEEP button: Used to set or cancel Sleep Mode operation.

NOTE:

• Keep the remote controller within 6 metres in front of the indoor unit without any obstructions.

• If the air conditioner is not used for a long time, remove the batteries.

• In this illustration, each section is shown with all the displays on for the purpose of explanation. Some

models may not feature all displays.

• Never tear the batteries open or expose them to naked flames, since this can lead to explosion.

REMOTE CONTROL FUNCTIONS

AND INDICATORS

STORAGE AND TIPS FOR USING THE RC

How to Insert the Batteries

Remove the battery cover in the direction of the

arrow.

Insert new batteries making sure that the (+) and

(-) of battery are matched correctly.

Refit the cover by sliding it back into position.

Note:

• Use 2 LR03 AAA (1.5volt) batteries. Do not use

rechargeable batteries.

Replace batteries with new ones of the same

type when the display becomes dim.

• If the replacement is done within 1 minute, the

remote control will keep original presetting.

However, if you replace batteries taking more

than 3 minutes, all presetting will be cancelled

and timer will display Zero.

How to remove the batteries

Remove the battery cover in the direction of the

arrow.

Press the positive pole of the battery softly with

your fingers, then draw the batteries out of the

compartment.

All this should be done by adults, children are

forbidden to remove the batteries from the

remote control in order to avoid danger of

swallow.

Disposal of the batteries

Please discard the batteries as sorted municipal

waste at the accessible collection point.

OPERATING MODE DESCRIPTION

AUTO restart

• The same mode/ fan speed/set temperature/swing angle as prior to the power cut are restored.

COOL mode

• Press SWING button to change up/down air flow direction.

Press FAN button to change the fan speed of the indoor unit.

Press the TEMPERATURE ADJUSTMENT button to change the temperature setting.

DRY mode

• Indoor fan motor control

In Dry mode, the fan motor runs at low speed.

When the compressor switches off, the indoor fan continues running.

• In Dry mode, the temperature settings remain the same, but 2°C lower than the previous temperature.

• Compressor control

When the room temperature is below 16°C, the compressor is off.

When it is over 16°C, the compressor runs intermittently, with operation periods depends on the

temperature setting and the room temperature.

When the room temperature is over or equal to 23 °C, the compressor runs for 8 mins and remains off

for 3 mins.

When the room temperature is below 23, the compressor runs for 2 mins and remains off for 3 mins.

When the room temperature is lower than the set temperature, the compressor runs for 1 min and

remains off for 4 mins.

FAN mode

• In this mode, the indoor unit operates like a fan only.

When the fan speed is set to Auto, the fan speed is low.

Press SWING button to change up/down air flow direction.

Press FAN button to change the fan speed from Low-Med.-High of the indoor unit.

HEAT mode (heat pump type)

• Press SWING button to change up/down air flow direction.

Press FAN button to change the fan speed of the indoor unit.

Press ROOM TEMPERATURE ADJUSTMENT button to change the temperature setting.

SLEEP mode

• When this button is pressed, the fan speed is low. In sleep mode, the temperature setting increases (in

cooling mode) by 1°C or decreases (in heating mode) by 2°C per hour automatically. After 2 hours, the

temperature setting remains at the user temperature setting +2°C (in cooling mode) and -4°C (in

heating mode). When the room temperature is lower (in cooling mode) or higher (in heating mode)

than the set temperature, the compressor stops until the room temperature is higher (in cooling mode)

or lower (in heating mode) than the set temperature.

DEFROST

A.Defrosting is activated: in the presence of both of the conditions listed below.

• When the compressor has been running for 40 mins;

• The temperature of the outdoor pipe OPT ≤ -4°C and has been running for 1min.

B. Defrosting is ended: in the presence of one of the conditions listed below.

• The temperature of outdoor pipe OPT ≥ 15°C and has been running for 1min.

• Defrosting has been active for over 10 mins.

JET mode

Used to activate rapid cooling. Rapid cooling operates at high fan speed with 16°C as automatic set

temperature. If you press the on/off button when the appliance is running, it will be stopped. When the

room temperature is lower than the set temperature (16°C), the compressor stops, fan speed remains

high.

6TH SENSE mode

Used to enter fuzzy logic operation directly.

Timer operation

Preparation Before Operation

• Open the cover and insert two new batteries.

• Press the clock button: the time in hours and minutes will flash on the display, press to adjust the hours

and press to adjust the minutes. Press the button again, and the time will be set.

• Close the cover.

TIMER ON/OFF

(When user presses on/off on the remote controller, all the setting reports of time on/off will be

cancelled.)

A. TIMER ON

Press this button to switch the remote controller and air conditioner to timer-on mode. "Timer on" is

shown on the LCD display. Time can be set from 1H to 24H, with one hour increments each time the

button is pressed.

The timer can be set on a daily basis only.

B. TIMER OFF

When the remote controller is on, press this button to switch the remote controller and air

conditioner to timer-on mode. "Timer-off" is shown on the LCD display. Time can be set from 1H to

24H, with one hour increments each time the button is pressed.

C. COMBINATION OF TIMER ON AND OFF

• When the unit and the remote controller are on, press the timer-off button to switch the remote

controller and air conditioner to timer-off mode. Timer-off is shown on the LCD display. Time can

be set from 1H to 24H, with one hour increments each time the button is pressed.

Next, press the timer-on button to switch the remote controller and air conditioner to timer-on

mode. Timer-on is shown on the LCD display. Time can be set from 1H to 24H, with one hour

increments each time the button is pressed. (timer off - timer on)

• When the unit and the remote controller are off, press the timer-on button to switch the remote

controller and air conditioner to timer-on mode. Timer-on is shown on the LCD display. Time can

be set from 1H to 24H, with one hour increments each time the button is pressed.

Next, press the timer-off button to switch the remote controller and air conditioner to timer-off

mode. Timer-off is shown on the LCD display. Time can be set from 1H to 24H, with one hour

increments each time the button is pressed (timer on - timer off).

Mode Initial room temperature .A Initial room temperature .B

Cooling

RT ≥ 26°C

24°C

26°C >RT ≥ 25°C

RT-2

Dry

25°C >RT ≥ 23°C

RT-2

Heating RT < 23°C 26°C

SERVICE AND MAINTENANCE

Clean the front grille and air filters at least once

every two weeks.

Before cleaning, be sure to switch the appliance

off and turn off the circuit breaker.

In this section, diagrams are for illustration

purposes only.

During operation, please refer to your actual

appliance.

Clean the front grille and air filters

1. Open the front grille by pulling the tabs on both

sides, then lifting up until it stops with a click.

Pull out the air filters.

2. Remove all dust on the front grille and air filters

with a vacuum cleaner or brush. (If the dust does

not come off easily, wash them with neutral

detergent dissolved in warm water - max.

temperature 45°C)

3. Rinse in clean water and dry in the shade.

4. Insert the front grille and air filters in their original

position and close the front grille.

5. Wipe the surface of the unit with a neutral

detergent and then wipe it again with dry cloth.

(Be sure not to use benzene, solvent or other

chemical products.)

In the event of prolonged disuse

1. Switch the fan on for a few hours to dry out the

inside thoroughly. (Choose COOL mode or HEAT

mode and select the highest temperature setting,

then switch the fan on.)

2. Switch the air conditioner off. Clean the filters and

the outside of the unit.

3. Remove the batteries from the remote control.

If you have not used the air conditioner for a

prolonged period of time

1. Clean the filters and return them to the original

position. Clean the indoor and outdoor units with a

soft cloth.

2. Insert the power plug and make sure the earth wire

is not loose.

3. Put the batteries in the remote controller.

NOTE:

• Air inlets and outlets must not be covered/blocked.

• For cleaning, never use petrol, benzene, thinner,

grinding powder, detergent insecticide etc as they

could damage the units.

• Never tear the batteries open or expose them to

naked flames, since this can lead to explosion.

Operation problems are often due to minor causes that can be found and fixed without

using any tools:

If you find any of the following symptoms, please turn the circuit breaker off immediately

and call the authorized service centre nearest to you for help.

• The power supply cable is abnormally hot or damaged.

• The appliance makes abnormal sounds during operation.

• The safety breaker, fuse or earth leakage breaker often cuts off operation.

• Some switch or button repeatedly fails to work normally.

• The air conditioner produces a burning smell during operation.

• Water leaks from the indoor unit.

TROUBLESHOOTING

Trouble Analysis

Does not run

• Is the protection device or fuse blown?

• Please wait for 3 minutes and start again, protection device may be

preventing unit to work.

• Are the RC batteries low?

• Is the plug not properly plugged?

No cooling or heating air

• Is the air filter dirty?

• Are the intakes and outlets of the air conditioner blocked?

• Is the temperature set properly?

Ineffective control

• Has there been a strong interference (from excessive static electricity

discharge, power supply voltage abnormality)? Note that operation will

be abnormal, in this case unplug from the power supply and re-plug after

2-3 seconds.

Does not operate

immediately

• 3 minute delay will occur when changing mode during operation.

Peculiar smell

• This smell may come from another source such as furniture, cigarette

etc, which is sucked in the unit and blown out with the air.

A sound of running water

• Normal behaviour caused by the flow of refrigerant in the air

conditioner.

• Defrosting sound in heating mode.

Cracking sound

• The sound may be generated by the expansion or contraction of the

front panel due to temperature changes.

Mist sprays from the outlet

• Mist is present in the room with low temperature? Normal behaviour

due to cool air discharged from indoor unit during COOLING or DRY

operation mode.

After switching off, the flap

appears not to close fully.

• The stepping motor could not find the RESET point. Restart the air

conditioner and then stop it again.

Indoor unit fan stops during

heating.

• The air conditioner is de-icing, which takes 10 minutes at most. (It

freezes when the outdoor temperature is very low and humidity is high).

It automatically resumes operation after approximately 10 minutes.

Attention:

The allowable length of the connecting pipe is

10m.

The allowable distance between indoor unit and

outdoor unit is 5m.

Confirm the installation position using the marks

on the indoor mounting plate.

Note: Different models have different

mounting plates, the installing charts of this

book are presented just for the purpose of

illustration, please take the real objects as

reference.

The copper pipe can be installed to the back, right,

underside, or left-back side.

Notice: do not raise the drain hose.

While installing the pipeline on thin armor plate or

wire mesh wall, use a wooden board to clamp

between the wall and the pipeline, or wrap the

pipeline with 7-8 layers of insulating plastic tape.

Cover the connecting pipe with adiabatic material.

NOTICE D’INSTALLATION

above 105mm

back

right

back

underside

left-back

left

front

8mm thick sponge plastic

adiabatic material.



PP

above 155mm

above 250mm

above 20mm

above 500mm

above 300mm

above 500mm

above 300mm

Location of indoor unit

• Keep the air inlet and outlet at a far distance from the blockage.

• Keep the difference in height between the indoor and outdoor unit to 5m max.

• Mount on a wall that is solid enough to bear the weight of the unit and not cause any shaking.

• Avoid direct sunshine.

• Choose a location that allows for a condensation drain and for connection to the outdoor unit.

• Keep far away from fluorescent lamps, which may have a negative affect on remote controller

operation.

• Keep at least 1meter away from TV, radio and other home appliances.

Location of outdoor unit

• Choose a location sturdy enough to bear the weight of the unit and not cause any shaking.

• Ensure there is adequate, little dust, and protection from direct rain and sunshine.

• Choose a location where the air discharged from the outdoor unit and appliance operating noise will

not annoy your neighbours.

• Ensure there is no blockage near the outdoor unit.

• Avoid places close to potential flammable gas leakage.

INSTALLATION OF THE INDOOR UNIT

Secure the mounting plate

The mounting plate should be attached to the

structural part of wall (post etc).

NOTICE:

• The holes at solid arrow position must be secured

to avoid the shake of mounting plate.

• When the expansion bolts are used, two holes (

11×20 or 11×26 ) that the distance between them

is 450mm should be adopted.

Drill on the wall

Operation:

1. Confirm the position of the wall hole according to

the chart (If it need to orientat a hole on the left

side of the mounting plate, please refer to the

method of orientating the right wall hole in the

above chart.

2. Use the aiguille to drill a hole with a diameter of

65mm.

NOTE:

• Secure all holes drilled at solid arrow positions to

prevent the mounting plate shaking.

• When expansion bolts are used, use two holes

(11x20 or 11x26) with a distance of 450mm

between them.

• Check the position of the holes, then drill.

Wiring

• Open the front grille.

• Unscrew the electrical box cover, remove the cover

from the unit and set aside.

• Unscrew the fastener, remove the fastener from the

unit and set aside.

• Connect the cable.

• Replace the fastener and electrical box cover.

fasten string at the central hole

105mm or more

from sidewall

Tapping

screw

ST4×25(5)

mounting

plate

plumb

at least 250mm

155mm or more

from sidewall

Center of hole (Ø 65mm)

Pipe hole

Center of hole

(Ø 65mm)

Diagram

Screw

Indoor unit terminal

Connecting cable

NOTE:

• The appliance must be installed in accordance with national wiring regulations.

• The appliance must not be installed in a laundry area.

• The appliance must be installed at a height of 2.3m above the floor.

• The appliance must be positioned so that the plug is accessible.

• For selected models with a cooling capacity above 4600W (17000BTU/h), an all-pole disconnect switch

with contact gap of at least 3mm must be fitted in the fixed wiring in accordance with national

regulations.

Installation of the drain hose

NOTE:

• The drain hose must be positioned beneath the

copper pipe.

• The drain hose must not be kinked or twisted.

• While insulating the drain hose, do not pull it.

• The section of the drain hose that passes through

the wall must be thermally insulated.

• The copper pipe and the drain hose must be lagged

using felt strip. Adiabatic pads must be used where

the pipe passes through the wall.

ROUTE OF PIPE

If the pipe comes out on the right side of the indoor

unit, cut part "1" of the unit.

If pipe comes out on the lower-right side of the indoor

unit, cut part "2" of the unit.

If pipe comes out on the left side of the indoor unit,

cut part 3 of the unit.

REPOSITIONING THE DRAIN HOSE

If the pipe comes out on the left side of the indoor

unit, the drain hose must be repositioned, otherwise

water may leak from the unit.

Repositioning procedure: Invert the position of drain

hose and drain rubber plug.

Clearance is not allowed after repositioning, as it

would result in leaking.

Installation of the indoor unit

Pass the pipe through the hole in the wall and attach

the indoor unit to the mounting plate (press the tab on

the indoor unit into the hook on the mounting plate.)

Liquid pipe

gas pipe

Adiabatic

underlay

Drain hose

felt

drain hose

Drain rubber plug

Indoor unit

the mounting

plate

Bottom

the tab of

indoor unit

Pipe Connection

• The number of bends in the pipe in the indoor unit must

not exceed 10.

• The number of bends in the pipe in the indoor unit and

outdoor unit taken together must not exceed 15.

• The radius of the bends must be more than 10cm.

• Snap the evaporator craft tube with pliers before

connecting. After expelling the air inside, use a wrench to

twist down the bottom nut of the connecting tube of the

evaporator.

• Use some airproof oil to cover the joint and the

expanding orifice of the connecting pipe.

• Align the centre of the joint with that of the expanding orifice and tighten the nut of the connecting pipe

using a wrench.

Attention:

Do not expel the air simply by loosening the nut since the air contained in the inside unit is pressurized. Do

not over tighten since there is a risk of damaging the expansion orifice.

Arrangement of the drain hose

• To drain the condensation water easily, the drain hose should be angled downwards.

The following 5 arrangement methods are incorrect.

• If you find the drain hose is not long enough to connect to the indoor

unit, you can extend it with the hoses in the accessory box.

• The section of the drain hose that passes through the wall must be lagged

with special adiabatic material.

Wall sealing and Pipe fastening

• Use putty to seal the hole in the wall.

• Use a clamp (pipe fastener) to secure the pipe in the specified position.

evaporator

craft tube

DIAMETER OF PIPE TORQUE (N • m)

6.35mm (1/4") 12.0-15.0

9.52mm (3/8") 33.0-36.0

12.7mm (1/2") 40.0-45.0

15.88mm (5/8") 73.0-78.0

Angled

downward

Angled

downward

Water

leak

Water

leak

Standing

water

Water

leak

Dip hose

into water

50mm or less

above floor

Drain hose

Hose (ID 15cm)

PVC hard

indoor unit

seal with putty

secure the connecting

pipe with clamp

get rid off unwanted part

clamp

screw

INSTALLATION OF THE OUTDOOR UNIT

Wiring

Wiring For Above 6000W Model (Above 21000BTU/h Model)

1. Remove the self-tapping screws (2 pcs) on the

maintenance board and take out the maintenance

board.

2. Loosen the self-tapping screws (2 pcs) on the fixing

clip to loosen the fixing clip.

3. Loosen the fixing screw of the wire terminal board,

pass the power wire and signal wire through the

fixing clip. Then firmly fix the power wire and signal

wire on the terminal board with the fixing screw.

(Earth wire must be connected firmly.)

The cable wire can be led from the back hole of the

piping hole or ejecting hole.

Please utilize outdoor pipe support when the cable

wire is led from the backside.

4. Tighten the self-tapping screw on the fixing clip.

5. Install the maintenance board. After the pipes and

cable wire are installed, please seal the sponge

block as per drawing indication.

Outdoor unit terminal

Connecting cable

Maintenance

board

Terminal board

Fix the cable

wire with

anchor cable

Piping cover

Outdoor pipe support (Outdoor pipe

support is not required when leading the

cable wire from other places).

Maintenance

board

Back wiring

Right wiring

Ejecting hole

Piping cover

Sponge

Piping cover

Connect diagram

1500-4600W Model (5000-12000BTU/h Model)

5000-5100W Model (17000-18000BTU/h Model)

6000-7000W Model (21000-24000BTU/h Model)

NOTE:

• If you find the colour of the connecting cable differs from the diagram on the previous page, refer to

actual model.

In any case, the terminal with the same sign must be connected to the connecting cable with the same

color.

• If signal cable must be purchased separately, choose electric cable above 0.75mm.

• If the interconnection cable for the power supply has to be replaced, please refer to the following table.

• The plug housing 1 is connected to the matched receptacle housing of the indoor unit.

• The plug housing 2 is connected to the matched receptacle housing of the outdoor unit.









1



5

5









1



Brown

Blue

Indoor unit terminal

Connecting

cable

Yellow/Green

Outdoor unit terminal

Cool only type

Brown

Blue

Black

Heat pump type

Plug housing 1

Yellow/Green

Gray

Brown

Blue

Heat pump typeor

Indoor unit terminal

Connecting

cable

Blue

Brown

Yellow/Green

Gray

Black

Brown

Blue

Outdoor unit terminal

Plug housing 1

Plug housing 2









1



5

5









1









1



Cool only type

Indoor unit terminal

Connecting

cable

Yellow/Green

Outdoor unit terminal

Brown

Blue

Brown

Black

Heat pump type Heat pump type Heat pump typeoror

Plug housing 1

Brown

Blue

Yellow/Green

Plug housing 2

Gray

Connecting

cable

Plug housing 1

Indoor unit

terminal

Plug

housing 2

Outdoor unit terminal

Brown

Blue

Plug housing 1

Yellow/Green

Blue

Brown



/

/



/











N N

L L



/

/



/









/



/









/

Cool only type

Heat pump type

Brown

Black

Indoor unit

terminal

Blue

Yellow/Green

Outdoor unit

terminal

Connecting cable

Brown

Blue

Yellow/Green

Brown

Blue

Gray

Brown

Black

Yellow/Green

Connecting cable

Plug housing 1

Indoor unit terminal

Blue

Brown

Gray

Outdoor unit

terminal

Plug housing 2

Black

Brown

Connecting cable

Plug housing 1

Black

Brown

Blue

Brown

Blue

POWER

SOURCE

Outdoor

unit terminal

Brown

Blue

Yellow/Green

Connecting cable

Indoor unit

terminal

Brown

Yellow/Green

Blue

Brown

POWER

SOURCE

Blue

Black

Gray

Plug

housing 1

Cool only type (T3) Heat pump type (T3)

Blue

Brown

WARNING:

• The electric circuit diagram given on the indoor/outdoor units must be taken as the main reference for

installation.

• The power wires and signal wires between the indoor/outdoor units must be connected one by one as

per corresponding number on the wiring terminal board.

• The connecting cables must be clipped together.

• Special cable must be used to connect indoor unit and outdoor unit. It should be ensured that the

terminals are not influenced by external force. Poor connection may cause fire.

• The electric box cover must be mounted and secured in position, otherwise fire or electrical shock may

occur because of dust or moisture.

• All models must be connected to mains power with system impedance limitations.

• While installing the unit, please see the following table for impedance information or contact the utility

company.

Installation of the drain joint (only for heat pump

type)

• Insert the outdoor double-channel drain joint in one of

the bottom holes of the right size then connect the drain

hose and joint together.

Connecting pipe joint

• Use some airproof oil to cover the joint and the expanding orifice of the connecting pipe.

• Align the centre of the joint with that of the expanding orifice and tighten the nut of the connecting pipe

with a wrench. (Adjust the torque using the same method used for connecting the pipe for the indoor

unit.)

MODEL SPECS (Interconnection cable)

≤ 2700W(10000BTU/h) ≥ 1.0mm²

3200W(11000BTU/h) - 4000W(15000BTU/h)

≥ 1.5mm²

4500W(16000BTU/h) - 8000W(28000BTU/h)

≥ 2.5mm²

8500W(29000BTU/h) - 9500W(32000BTU/h)

≥ 4.0mm²

10000W(34000BTU/h) - 11000W(38000BTU/h)

≥ 6.0mm²

SERIES MODEL IMPEDANCE

R410A series

6800W (24000BTU/h)

≤ 0.124 Ω

5100W (18000BTU/h)

≤ 0.268 Ω

3500W (12000BTU/h)

≤ 0.313 Ω

2500W (9000BTU/h)

≤ 0.409 Ω

Bottom

Double-channel

drain joint

Drain hose

Expelling air

• Screw down the cap of both the gas shut-off valve

and the liquid shut-off valve as well as the nut of the

service port.

• Use an Allen wrench to turn the liquid shut-off valve

90° counterclockwise, and close it again after 10

seconds.

• Use soapy water to check for gas leakage, especially

at all joints. If there is no gas leakage, turn the liquid

shut-off valve 90° counter-clockwise again.

• Press the cork of the service port at the gas shut-off

valve. After 10 seconds, a foggy gas is discharged,

meaning the air inside has been expelled.

• Use an Allen wrench to turn both the liquid shut-off

valve and the gas shutoff valve counter-clockwise

until they are fully open and then replace the valve

caps and tighten them.

Expansion of the pipe orifice

• Use a pipe cutter to cut off the broken pipe orifice.

• Remove burrs at the cut of the pipe orifice.

• Insert a nut into the pipe and expand the orifice

with specified tools, reamers for example.

• Check the quality of expanding technique.

Adding refrigerant

• If the connecting pipe is longer than 7 metres, add refrigerant as needed. (Cool only type) added

amount A=(Lm-7m) x 15g/m; (Heat pump type) added amount A= (Lm-7m) x 50g/m. (A: amount of

added refrigerant, L: the length of connecting pipe)

liquid

connecting pipe

allen wrench

gas

connection

pipe

valve

nuts

service port

service port cap

gas shut-off valve

liquid shut-off valve

Copper pipe

Oblique

Roughness Burr

Burr

Reamer

Outer diameter A (mm)

6.35mm (1/4") 2.0-2.5

9.52mm (3/8") 3.0-3.5

12.7mm (1/2") 3.5-4.0

15.88mm (5/8") 4.0-4.5

The length of connecting pipe (m) 7 8 9 10

(Cool only type) added amount (g) 0 15 30 45

(Heat pump type) added amount (g) 0 50 100 150

• Expel the air following the above-mentioned

method.

• Close the gas shut-off valve, connect the charging

hose (low pressure) to the service valve and then

open the gas shut-off valve again.

• Connect the refrigerant bottle to the charging hose

and then convert it.

• Add the liquid refrigerant as stated in the above

table.

• Disconnect the manifold gauge after turning off the

shut-off valve, and then open the gas shut-off valve

again.

• Tighten the nuts and caps of each valve.

Operation test

• Before testing operation, carefully inspect the wiring again and make sure it is safe.

1. Emergency switch operation: Every time the emergency switch is pressed, the air conditioner runs in

the following order:

Cool only type: Cool → Shut off

Heat pump type: Cool → Heat → Shut off

2. Remote control operation: If the indoor unit beeps when the I/O button is pressed, this indicates the air

conditioner is being operated with the remote control. After that, press every button to test operation.

3. Check switch operation: open the front grille and press the check button. Switch on the power source

to activate the operation test. If the indicator lamps light up first and then go out in succession, the

system is operating normally. If one of the indicator lamps flashes at all times, there is a system

malfunction. Consult the troubleshooting guide immediately.

Pressure meter

High pressure valve

Charging line

Service port

Low pressure valve

Manifold gauge

Whirlpool AMD 303 User guide

Brand: Whirlpool

Model: AMD 303

Type: User guide

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