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– 2 –

Safety precautions

 

Before starting to use the system, please read these “Safety precautions” carefully to ensure 
proper operation of the system.

 

When you have read this user’s manual, please keep it safely. If someone else takes over as 
user, make sure that the manual is also passed on to the new user.

 WARNING

Indicates a potentially hazardous situation which, if not avoided, can 

result in serious consequences such as death or severe injury.

 CAUTION

Indicates a potentially hazardous situation which, if not avoided, can 

result in personal injury or property damage.

Please observe these precautions with great care, since they are essential to your safety. 

 

Symbols which appear frequently in the text have the following meaning:

Strictly prohibited

Observe instructions 

with great care

Provide proper 

earthing

 

Safety precautions in handling air conditioners with 

fl

 ammable 

refrigerants

This equipment uses 

fl

 ammable refrigerants. If 

the refrigerant is leaked, 

together with an external 

ignition source, there is a 

possibility of ignition.

There is information 

included in the user’s 

manual and/or installation 

manual.

The user’s manual should 

be read carefully.

A service personnel 

should be handing this 

equipment with reference 

to the installation manual.

 WARNING

 

Strict compliance of the domestic laws must 

be observed when disposing the appliance.

 

Do not use means to accelerate the 

defrosting process or to clean, other than 

those recommended by the manufacturer.

 

The appliance shall be stored in a room 

without continuously operating ignition 

sources (for example: open 

fl

 ames, an 

operating gas appliance or an operating 

electric heater.

 

Do not pierce or burn.

 

Be aware that refrigerants may not contain an 

odour.

 

The appliance shall be stored in a well-

ventilated area where the room size 

corresponds to the room area as speci

fi

 ed for 

operation.

 

The staff in servicing operations must hold 

the national quali

fi

 cation or other relevant 

quali

fi

 cations.

 

 The indoor unit shall be stored in a room that 

has a minimum area of 4.0m

2

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Summary of Contents for SRK20ZSA-W

Page 1: ...an http www mhi mth co jp en MITSUBISHI HEAVY INDUSTRIES AIR CONDITIONERS AUSTRALIA PTY LTD 9C Commercial Road Kingsgrove NSW 2208 PO BOX 318 Kingsgrove NSW 1480 Tel 61 2 8571 7977 Fax 61 2 8571 7992...

Page 2: ...RLD012A015F Cover indd 2 RLD012A015F Cover indd 2 2017 06 14 13 09 07 2017 06 14 13 09 07...

Page 3: ...or the recycling center Safety precautions 2 Tips for effective operation 6 Name of each part and its function 7 Remote control 9 Operation failure with the remote control 9 Temporary run operation 9...

Page 4: ...ked together with an external ignition source there is a possibility of ignition There is information included in the user s manual and or installation manual The user s manual should be read carefull...

Page 5: ...as leaks may cause fire Make sure that an earth leakage breaker is installed If you do not install an earth leakage breaker you may get an electric shock Make sure to install the drain hose properly s...

Page 6: ...own you may get injured Do not place a flammable insecticide or paint spray near the air conditioner nor spray it directly on the system This may result in a fire Do not expose any combustion applianc...

Page 7: ...may cause accidents due to oxygen deficiency Stand firmly on a stepladder or other stable object when removing the inlet panel and filters Failure to observe this may result in injury through insecur...

Page 8: ...gas is inhaled excessively it may cause deterioration of nerve function like dizziness and headache or deterioration of heart function like irregular heartbeat and heart palpitation temporarily If ref...

Page 9: ...back and side Fan Inside of the unit Model name Refrigerant pipe and electric wire Drain hose Drain hole The appearance varies by models IT MIGHT CAUSE INJURY DO NOT STEP ON TOP OF THIS UNIT WARNING...

Page 10: ...g filter Orange Battery 2 R03 AAA Micro Wood screw 2 for remote control holder mounting TIMER light yellow Illuminates during TIMER operation This button can be used for turning on off the unit when a...

Page 11: ...ontrol holder Warning note for remote control Are the batteries running down Setting the batteries above Replace the batteries with new ones and retry the operation Operation failure with the remote c...

Page 12: ...oor unit At completion of the setting the indoor unit emits a buzzer sound peep If no reception sound is emitted start the setting from the beginning again Setting an indoor unit 1 2 3 Since the signa...

Page 13: ...60 seconds of setting the airflow range while the airflow range setting display illuminates The diagram below indicates the airflow ranges corresponding to the air conditioner s installation location...

Page 14: ...FT RIGHT button This button changes the airflow left right direction SILENT button This button sets the SILENT operation OFF TIMER button This button selects OFF TIMER operation WEEKLY button This but...

Page 15: ...laced or the ACL switch is pressed the remote control will be set to the initial state Since the WEEKLY TIMER program is not set in the initial state set the program according to the setting procedure...

Page 16: ...24 23 18 When 18 is indicated even if the button is pressed the indicator does not change Press the button When it is a little cold Press the button When it is a little hot FAN SPEED The FAN SPEED can...

Page 17: ...ting capacity reduces when the outside air temperature gets colder It may take some time to supply hot air after turning on the air conditioner If the outside temperature becomes extremely low it woul...

Page 18: ...peration starts the flap and louver direction is fixed at the horizontal center position in order to avoid cold draft It returns to the set position when the warm air supply is started The flap and lo...

Page 19: ...er turned off start the operation from Step 1 With the air conditioner running start from Step 2 Example You prefer it to stop 22 30 Press the ON OFF button Press the OFF TIMER button OFF TIMER displa...

Page 20: ...0 10 0 20 Units of ten minutes 1 00 1 10 Every time the button is pressed the display is switched in the order of 0 00 23 50 23 40 Units of ten minutes 23 00 22 50 Set at 8 00 Press the SET button Th...

Page 21: ...operation Stop Operation starts Check the room temp 1 hour before Set time When SLEEP TIMER is selected the set temperature is automatically adjusted after a while ensuring that the room is not too co...

Page 22: ...ng to the contents that are set The remote control display is also switched to the operation contents that are set The setting can be changed from the remote control after ON TIMER operation of the WE...

Page 23: ...e button is pressed the display is switched in the order of 3 Press the SET button The day of the week is determined and the program number blinks Press the PROGRAM button and current day of the week...

Page 24: ...TIMER is selected go to Step 8 When OFF TIMER is selected go to Step 9 Setting mode Collective setting Set the same operation contents to the same program number of all the days of the week In Step 2...

Page 25: ...lay of all of the days of the week Press the or TIMER button Select a day of the week and a program number to be confirmed Display starts from the current day of the week For the program without setti...

Page 26: ...When the HI ECO button is pressed again The operation mode will be changed to the ECO operation 2 When the operation mode is changed 3 When it has been 15 minutes since HIGH POWER operation has starte...

Page 27: ...pacities deteriorate SILENT operation will not function during DRY and FAN operation In case of following operations the air conditioner will resume SILENT operation whenever it turns ON again 1 When...

Page 28: ...ct the brightness level by pressing or TIMER button Display brightness adjustment This function can be used when it is necessary to adjust the brightness of unit display Select the display brightness...

Page 29: ...COOL and DRY operation to remove the moisture from inside of the indoor unit and control the growth of mold and bacteria This operation can save the preferred setting for future operation 2 Select SEL...

Page 30: ...age Cleaning the air inlet panel The panel can be washed with water After washing with water wipe any moisture off the panel and dry out of direct sunlight Pull up the air inlet panel forward Lightly...

Page 31: ...be replaced after about 1 year of used However the actual replacement period may vary depending on the conditions in which the filter is used Remove the photocatalytic washable deodorizing filter oran...

Page 32: ...pose tools are required Suitable installation position Troubleshooting Please carry out the following checks before making a service call If the air conditioner does not operate properly after you hav...

Page 33: ...r you have stopped it RUN light is on Restart is blocked for 3 minutes after you have stopped the operation to protect the unit The 3 minutes protection timer in the microcomputer automatically starts...

Page 34: ...the remote control operation switch is in the AUTO mode the air conditioner automatically selects either COOL or HEAT mode when operation is started depending on the room temperature During simultane...

Page 35: ...insufficient leaking Closed service valve Outdoor temperature sensor error Outdoor heat exchanger sensor error Discharge pipe sensor error Suction pipe sensor error Broken outdoor sensor wire poor co...

Page 36: ...pped with a terminal block for DRED input and supports ELV Extra Low Voltage complying with AS NZS60335 1 Under DRED mode RUN light and TIMER light blink alternately as shown When the Defrost function...

Page 37: ...35 RLF012A104_EN indd 35 RLF012A104_EN indd 35 1 13 2017 6 35 46 PM 1 13 2017 6 35 46 PM...

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Page 39: ...RLD012A015F Cover indd 2 RLD012A015F Cover indd 2 2017 06 14 13 09 07 2017 06 14 13 09 07...

Page 40: ...an http www mhi mth co jp en MITSUBISHI HEAVY INDUSTRIES AIR CONDITIONERS AUSTRALIA PTY LTD 9C Commercial Road Kingsgrove NSW 2208 PO BOX 318 Kingsgrove NSW 1480 Tel 61 2 8571 7977 Fax 61 2 8571 7992...

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