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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 

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nstallation

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Summary of Contents for AD24MS1ERA

Page 1: ...DUCT TYPE AIR CONDITIONER OPERATION MANUAL AND INSTALLATION MANUAL Please read this manual carefully before installation Keep this operation manual for future reference No 0150510323 B ...

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Page 4: ... 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 ...

Page 5: ...jury 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 Installationbyyourselfisnotencouragedbecauseitcould 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 ...

Page 6: ...ture 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 do...

Page 7: ...n following situation 6 Safety Precautions 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 ...

Page 8: ...7 Parts and Functions ...

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Page 10: ...9 ...

Page 11: ... 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 Opera...

Page 12: ...ation HIGH C ROOM TEMP The timing is based on the real time Thus the real time should be regulated in advance The clock regulation steps are as follows 3 Press setting switch The setting is achieved 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 CLOCK flickers and the time displayed is the r...

Page 13: ...h 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 flick...

Page 14: ...ction 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 Operation How to change the function switches Master wire controller Slave wire controller Function All of functions Only with below functions ON OFF MODE FAN...

Page 15: ...Communication wiring length m Dimensions of wiring 100 0 3mm2 x3 core shielded wire 100 and 200 0 5mm2 x3 core shielded wire 200 and 300 0 75mm2 x3 core shielded wire 300 and 400 1 25mm2 x3 core shielded wire 400 and 600 2mm2 x3 core shielded wire One side of the shielded sheet of communication wire must be earthed A B C A B C A B C A B C Indoor 1 Wire controller A B C Wire controller Polar wire I...

Page 16: ...ver 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 Si...

Page 17: ... 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 effectiv...

Page 18: ...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 window...

Page 19: ...AN 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 a...

Page 20: ... 1D Outdoor unit abnormal 3 0 1E Outdoor unit abnormal 3 1 1F Outdoor unit abnormal 3 2 20 Outdoor unit abnormal 3 3 21 Outdoor unit abnormal 3 5 23 Outdoor unit abnormal 3 6 24 Outdoor unit abnormal 3 7 25 Outdoor unit abnormal 3 8 26 Outdoor unit abnormal 3 9 27 Outdoor unit abnormal 4 3 2B Outdoor unit abnormal 4 4 2C Outdoor unit abnormal 4 7 2F Outdoor unit abnormal 4 8 30 Outdoor unit abnorm...

Page 21: ...sult 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 l...

Page 22: ...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 a...

Page 23: ... 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 cli...

Page 24: ...sed 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 Connect...

Page 25: ...tion 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 25 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...

Page 26: ...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 si...

Page 27: ...ng 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 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 wirin...

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