Value up guidelines

Guidelines with preventive maintenance schedule

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Dust or cigarette tar has adhered to the unit, but not enough to impair airflow. At this time dirt starts to become noticeable in the drain pan and problems in the water drainage system become worrisome because of slime.

Note: Cleaning period depends on environment, atmosphere, and operating time, etc.

.From this time, preventive maintenance (cleaning) is required to maintain air conditioning performance and to enablelong use of the air conditioner. .Problems such as ejection of water droplets can be prevented before they occur by cleaning away dirt during theinitial buildup stage.

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Dust or cigarette tar has adhered to the unit, but not enough to impair airflow. At this time dirt starts to become noticeable in the drain pan and problems in the water drainage system become worrisome because of slime.

Dirt or cigarette tar has adhered to the unit as a soft scum. From this stage, if the unit is being used as an air conditioner, water will start leaking and water droplets will start being ejected from the discharge grille. If being used as a heater, the outdoor unit might stop functioning.

A hard layer of dirt has adhered to the surface of the heat exchanger. As shown in the photograph, the gaps between the fins are completely blocked. From this stage, if the unit is being used as an air conditioner, water leakage will occur. If being used as a heater, the outdoor unit will stop functioning. If used in this condition, the drop in airflow will cause air conditioning failure and possibly damage the outdoor unit by causing it to overwork.

.More than just heat exchanger fin cleaning, disassembly and maintenance of functional partsis also required..Countermeasures are required to combat the possibility of mold and bacteria. These can becontrolled by using a silver ion antimicrobial agent. (Air Clean Service is effective for approximately 2 years.)

.Cleaning and maintenance of functional parts (replacement/overhaul of main parts) isrequired..At the same time, please consider preventive maintenance for the outdoor unit.

.Dirt is becoming obvious and you have to use a strong chemical cleaning agent. .Use of a common cleaning agent might hurt the protective surface (hydrophilic coating) onthe heat exchanger fins. We recommend using ECO Fin Clean (Air Clean Service cleaning agent), which is gentle on the protective surface.

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InspectionInspection

Maintenance

Maintenance

Maintenance replacement

Maintenance replacement

Repair replacement

Inspection

InspectionInspection Inspection

InspectionInspection

Inspection

0 15131098653

Selected function level

Initial level

Desired level

Limit of use

Func

tion Per

form

ance

Start of use

(Elapsed years)*

*Elapsed years are estimates based on normal operation without frequent on-offs at 10 hours per day and 2,500 hours per year. Source: Japan Refrigeration and Air Conditioning Industry Association

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VRV System employs coolant circulation control with a fixed coolant temperature. This type of control is performed using temperature and pressure sensors. If the sensors malfunction, operation control will become faulty which will lead not only to loss of comfort inside the room being air conditioned, but strain to the main components such as the compressor.

Electronic expansion valve

When air conditioning, the coolant inside this pipe is controlled to a fixed temperature.

Pressure sensor

Temperature sensor

3 year replacement

cycle

5 year replacement

cycle

5 year replacement

cycle

8 year replacement

cycle

8 year replacement

cycle

8 year replacement

cycle

8 year replacement

cycle

10 year replacement

cycle

10 year replacement

cycle

10 year replacement

cycle

10 year replacement

cycle

8 year replacement

cycle

Coil layer short in the drive member, stuck valve, and gas leakage.

Locking caused by abrasion of bearing and breakage of motor coil.

Pressure detection failure caused by resistance errors and severed cables.

Overheating, swelling and bursting caused by deterioration.

Operation failure caused by deterioration of resistors, capacitors, and ICs.

Operation failure caused by deterioration of resistors, capacitors, and ICs.

Contact adhesion caused by roughness on contacts and operation failure due to severed coil.

Cracking of the outer periphery caused by deterioration and coil layer shorts.

Locking caused by abrasion of main bearing and coil layer short in the electrical machinery.

Abnormal odor, degraded humidifying efficiency and water leakage caused by dirt, mold, and scaling.

Operation failure caused by severed motor coil wire and locking due to abrasion of main bearing.

Temperature detection failure caused by resistance errors and severed cables.

Air conditioner operation

Intake pressure (evaporation temperature) fixed

Heater operation Discharge pressure (condensation temperature) fixed

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Humidifier

Humidifying element

Before cleaning drain pan

After cleaning drain pan

Air conditioners that are used continuously throughout the season are renewed. The full cooling and heating potential is realized while power wastage is kept under control. Furthermore, in addition to the elimination of smells and mold, breakdowns are prevented before they have a chance to occur.

Restore the cleanliness and comfort it’s supposed to be.

For example,

the heat

exchanger…

Services offered

Scope of cleaning

Replacement of sensor and drain pump

Anti-microbial treatment of air conditioner drain pan

Use of special cleaning agent recommended by DAIKIN.

For details, please refer to the pamphlet about this feature.Limited period

As options, we will also perform inspections of drain fluid level switch, electrical components such as the thermistor, and the drain pump.

Heat exchanger

Drain pan

Heat exchanger

Drain pan

Before cleaning After cleaning

Building Sanitation Management

Perform inspection and cleaning of package air conditioners with proper respect to Building Sanitation Management.

Inspection for Building Sanitation Management

Inspections covered

Inspection for drain pan dirtDrain pan & air filter cleaningInspection and cleaning of humidifier (if it's built)

Optional

Inspection of drain fluid level switchInspection of electrical components (such as thermistor)Inspection of drain pump

We offer parts replacement, cleaning and overhaul services in accordance with the symptom at hand. One by one, your unit will take on a new life.

.Panel .Air filter .Heat exchanger .Fan rotor .Drain pan

By using Daikin’s recommended cleaning agent, the hydrophilic coating on the heat exchanger fins won’t be hurt.

The temperature sensor, which easily ages, and the drain pump (in-use machines only) are replaced.

By placing a silver ion anti-microbial agent in the drain pan, the occurrence of slime, mold and bacteria, which are the cause of odors and blockage, can be controlled. This treatment is effective for approximately two years.

We do inspections also when cleaning. It is the air conditioner professionals who make our cleaning service possible. Air Clean Service

Page 14

Drain socket cap

Drain pan

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Stop drain pan slime buildup with silver ion anti-microbial! (for shop and office use)

●Without silver ion anti-microbial agent

●With silver ion anti-microbial agent

The drain pan provides a stable, warm environment for contaminates to accumulate with ease. These contaminates can accumulate into a slime jelly, clogging the drain discharge pump.

The agent features pulverized anti-microbial silver and glass incorporated into the cartridge. This additive melts with time, slower than typical market chemicals.(The lifespan of a silver ion cartridge depends on the usage environment, but should be changed once every two to three years.)

The effectiveness of silver ion anti-microbial agent has been tested and confirmed against slime cultivated in a 20˚C

environment, the same as that of the inner drain pan of an air conditioner.

Caution! This product may not suitable or necessary for some certain equipment, depending on model and year of make. For detailed information, please consult your nearest Daikin Service Station.

For the effectiveness of silver ion anti-microbial agent, we recommend you also clean the inner drain pain.

After 2 days After 9 days After 21 days

After 2 days After 21 days

Increase in slime volume is observed.

No change in slime volume is observed.

Silver ion anti-microbial agent

The effectiveness of silver ion anti-microbial agent:

Silver ion anti-microbial agent

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DH07-ZZ04C（2011.9.0005）NKThe information in this document is current as of April, 2011. Content may change without notice.

Please direct inquiries about DAIKIN A.C. maintenance to the following.

�●Daikin Airconditioning Central Europe HandelsGmbH●Daikin Airconditioning Belgium NV●Daikin Airconditioning Central Europe HandelsGmbH●Daikin Airconditioning France S.A.S.●Daikin Airconditioning Germany GmbH●Daikin Airconditioning Greece SA●Daikin Magyarorszag Klimatechnikai KFT●Daikin Europe Ireland Office●Daikin Airconditioning Italy S.p.A.●Daikin Airconditioning Poland Sp.z.o.o●Daikin A/C Portugal S.A.●Daikin Airconditioning Central Europe - Romania srl●Daikin Airconditioning Central Europe - Slovakia spol. s r.o.●Daikin Airconditioning Spain S.A.●Daikin Airconditioning Netherlands B.V.●Daikin Klima Pazarlama Limited Sirketi●Daikin Airconditioning UK Head Office

●Daikin Europe Middle East Office●Daikin Airconditioning South Africa (Pty) Ltd.

●Daikin Industries, Ltd. After Sales Service Div.●Daikin Air Conditioning Technology (Beijing) Co.,Ltd.Daikin Air Conditioning Technology (Shanghai) Co.,Ltd.Daikin Air Conditioning Technology (Guangzhou) Co.,Ltd.●Daikin Airconditioning (Hong Kong) Ltd.●Ho Tai Development●Daikin Airconditioning India Pvt. Ltd.●P.T. Daikin Indonesia●Daikin Airconditioning (Malaysia) Sdn. Bhd.●Daikin Airconditioning Philippines INC.●Daikin Air Conditioning (Singapore) Pte.Ltd.●Siam Daikin Sales, Co., Ltd.●Daikin Industries (Thailand) Ltd. Hanoi Representative OfficeVietkim Trading Co.,Ltd●Daikin Australia (Pty) Ltd.

●・Daikin AC (Americas), Inc.・　Daikin AC (Americas), Inc. Latin America Operations●・Daikin Air Conditioning Argentina S.A.●Daikin McQuay AR Condicionado Brasil LTDA.

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