Toshiba Air Conditioner MMY MAP0804HT8 E User Manual
AIR CONDITIONER (MULTI TYPE)  
Installation manual  
Outdoor Unit  
Model name:  
<Heat Pump Model>  
<Cooling Only Model>  
For commercial use  
MMY-MAP0804HT8-E  
MMY-MAP1004HT8-E  
MMY-MAP1204HT8-E  
MMY-MAP1404HT8-E  
MMY-MAP1604HT8-E  
MMY-MAP0804T8-E  
MMY-MAP1004T8-E  
MMY-MAP1204T8-E  
MMY-MAP1404T8-E  
MMY-MAP1604T8-E  
MMY-MAP0804HT8Z-E  
MMY-MAP1004HT8Z-E  
MMY-MAP1204HT8Z-E  
MMY-MAP1404HT8Z-E  
MMY-MAP1604HT8Z-E  
MMY-MAP0804T8Z-E  
MMY-MAP1004T8Z-E  
MMY-MAP1204T8Z-E  
MMY-MAP1404T8Z-E  
MMY-MAP1604T8Z-E  
MMY-MAP0804HT8ZG-E  
MMY-MAP1004HT8ZG-E  
MMY-MAP1204HT8ZG-E  
MMY-MAP1404HT8ZG-E  
MMY-MAP1604HT8ZG-E  
MMY-MAP0804T8ZG-E  
MMY-MAP1004T8ZG-E  
MMY-MAP1204T8ZG-E  
MMY-MAP1404T8ZG-E  
MMY-MAP1604T8ZG-E  
English  
Installation manual  
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Installation Manual  
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Work undertaken  
Protective gear worn  
1 PRECAUTIONS FOR SAFETY  
Protective gloves  
‘Safety’ working clothing  
All types of work  
WARNING  
Gloves to provide protection for electricians and from heat  
Insulating shoes  
Clothing to provide protection from electric shock  
Electrical-related  
work  
General  
•
•
•
•
Before starting to install the air conditioner, read through the Installation Manual carefully, and follow its instructions to install  
the air conditioner. Otherwise, falling down of the unit may occur, or the unit may cause noise, vibration or water leakage.  
Only a qualified installer(*1) or qualified service person(*1) is allowed to do installationwork. If installation is carried out by  
an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result.  
If using separately sold products, make sure to use Toshiba specified products only. Using unspecified products may cause  
fire, electric shock, water leak or other failure.  
Before opening the service panel of the outdoor unit, set the circuit breaker to the OFF position. Failure to set the circuit  
breaker to the OFF position may result in electric shocks through contact with the interior parts. Only a qualified installer(*1)  
or qualified service person(*1) is allowed to remove the service panel of the outdoor unit and do the work required.  
Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breakers for both the  
indoor and outdoor units to the OFF position. Otherwise, electric shock may result.  
Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair or removal work is being  
carried out. There is a danger of electric shocks if the circuit breaker is set to ON by mistake.  
Only a qualified installer(*1) or qualified service person(*1) is allowed to undertake work at heights using a stand of 50 cm  
or more or to remove the intake grille of the indoor unit to undertake work.  
Wear protective gloves and safety work clothing during installation, servicing and removal.  
Do not touch the aluminium fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched for some  
reason, first put on protective gloves and safety work clothing, and then proceed.  
Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoor unit and  
result in injury.  
When working at height, put a sign in place so that no-one will approach the work location before proceeding with the work.  
Parts or other objects may fall from above, possibly injuring a person below. Also, be sure that workers put on helmets.  
When cleaning the filter or other parts of the outdoor unit, set the circuit breaker to OFF without fail, and place a “Work in  
progress” sign near the circuit breaker before proceeding with the work.  
When working at heights, put a sign in place so that no-one will approach the work location, before proceeding with the  
work. Parts and other objects may fall from above, possibly injuring a person below.  
The refrigerant used by this air conditioner is the R410A.  
Work done at heights  
(50 cm or more)  
Helmets for use in industry  
Transportation of  
heavy objects  
Shoes with additional protective toe cap  
Repair of outdoor unit Gloves to provide protection for electricians and from heat  
„Warning Indications on the Air Conditioner Unit  
•
•
•
Warning indication  
Description  
WARNING  
WARNING  
ELECTRICAL SHOCK HAZARD  
•
•
ELECTRICAL SHOCK HAZARD  
Disconnect all remote  
electric power supplies  
before servicing.  
Disconnect all remote electric power supplies before servicing.  
•
•
•
•
WARNING  
WARNING  
Moving parts.  
Do not operate unit with grille  
removed.  
Moving parts.  
Do not operate unit with grille removed.  
Stop the unit before the servicing.  
Stop the unit before the servicing.  
•
•
You shall ensure that the air conditioner is transported in stable condition. If you find any part of the product broken, contact  
your dealer.  
•
Do not disassemble, modify, repair or move the product yourself. Doing so may cause fire, electric shock, injury or water  
leaks. Ask a qualified installer or qualified service person to do any repairs or to move the product.  
CAUTION  
CAUTION  
High temperature parts.  
You might get burned  
when removing this panel.  
Selection of installation location  
High temperature parts.  
You might get burned when removing this panel.  
•
If you install the unit in a small room, take appropriate measures to prevent the refrigerant from exceeding the limit  
concentration even if it leaks. Consult the dealer from whom you purchased the air conditioner when you implement the  
measures. Accumulation of highly concentrated refrigerant may cause an oxygen deficiency accident.  
Do not install in a location where flammable gas may leaks are possible. If the gas should leak and accumulate around the  
unit, it may ignite and cause a fire.  
When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other protective clothing.  
When transporting the air conditioner, do not take hold of the bands around the packing carton. You may injure yourself if  
the bands should break.  
•
CAUTION  
•
•
CAUTION  
Do not touch the aluminum  
fins of the unit.  
Doing so may result in injury.  
Do not touch the aluminium fins of the unit.  
Doing so may result in injury.  
•
•
•
Install the indoor unit at least 2.5 m above the floor level since otherwise the users may injure themselves or receive electric  
shocks if they poke their fingers or other objects into the indoor unit while the air conditioner is running.  
Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwise it may  
cause imperfect combustion.  
Places where the operation sound of the outdoor unit may cause a disturbance. (Especially at the boundary line with  
a neighbour, install the air conditioner while considering the noise.)  
CAUTION  
CAUTION  
BURST HAZARD  
Open the service valves before  
the operation, otherwise there  
might be the burst.  
BURST HAZARD  
Installation  
Open the service valves before the operation, otherwise there might be the  
burst.  
•
Follow the instructions in the Installation Manual to install the air conditioner. Failure to follow these instructions may cause  
the product to fall down or topple over or give rise to noise, vibration, water leakage or other failure.  
The designated bolts (M12) and nuts (M12) for securing the outdoor unit must be used when installing the unit.  
Install the outdoor unit property in a location that is durable enough to support the weight of the outdoor unit. Insufficient  
durability may cause the outdoor unit to fall, which may result in injury.  
•
•
•
•
Install the unit in the prescribed manner for protection against strong wind and earthquake. Incorrect installation may result  
in the unit falling down, or other accidents.  
Be sure to fix the screws back which have been removed for installation or other purposes.  
CAUTION  
CAUTION  
Do not climb onto the  
fan guard.  
Doing so may result in injury.  
Do not climb onto the fan guard.  
Doing so may result in injury.  
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Refrigerant piping  
Relocation  
•
Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the compressor is  
operated with the valve open and without refrigerant pipe, the compressor sucks air and the refrigeration cycles is over  
pressurized, which may cause a injury.  
•
Only a qualified installer(*1) or qualified service person(*1) is allowed to relocate the air conditioner. It is dangerous for the  
air conditioner to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and/or  
vibration may result.  
•
•
•
•
Tighten the flare nut with a torque wrench in the specified manner. Excessive tighten of the flare nut may cause a crack in  
the flare nut after a long period, which may result in refrigerant leakage.  
Ventilate the air if the refrigerant gas leaks during installation. If the leaked refrigerant gas comes into contact with fire, toxic  
gas may be produced.  
After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a  
fire source, such as a cooking range, noxious gas may be generated.  
When the air conditioner has been installed or relocated, follow the instructions in the Installation Manual and purge the air  
completely so that no gases other than the refrigerant will be mixed in the refrigerating cycle. Failure to purge the air  
completely may cause the air conditioner to malfunction.  
•
When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe. Disconnecting  
the refrigerant pipe with the service valve left open and the compressor still operating will cause air or other gas to be sucked  
in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in rupture, injury or  
other trouble.  
Never recover the refrigerant into the outdoor unit. Be sure to use a refrigerant recovery machine to recover the refrigerant  
when moving or repairing. It is impossible to recover the refrigerant into the outdoor unit. Refrigerant recovery into the  
outdoor unit may result in serious accidents such as explosion of the unit, injury or other accidents.  
•
(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”  
•
•
•
Nitrogen gas must be used for the airtight test.  
The charge hose must be connected in such a way that it is not slack.  
If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant gas comes  
in contact with fire, noxious gas may be generated.  
CAUTION  
New Refrigerant Air Conditioner Installation  
THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE  
LAYER.  
Electrical wiring  
•
•
•
•
Only a qualified installer(*1) or qualified service person(*1) is allowed to carry out the electrical work of the air conditioner.  
Under no circumstances must this work be done by an unqualified individual since failure to carry out the work properly may  
result in electric shocks and/or electrical leaks.  
When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear gloves to  
provide protection for electricians and from heat, insulating shoes and clothing to provide protection from electric shocks.  
Failure to wear this protective gear may result in electric shocks.  
When executing address setting, test run, or troubleshooting through the checking window on the electric parts box, put on  
insulated heat-proof gloves, insulated shoes and other clothing to provide protection from electric shock. Otherwise you may  
receive an electric shock.  
•
The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its pressure is approx.  
1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed.  
Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the  
refrigerating cycle.  
•
To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the  
main unit and installation tools are changed from those for the conventional refrigerant.  
•
•
Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use  
of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and/or a fire.  
Check that the product is properly earthed. (grounding work)  
•
•
Accordingly the exclusive tools are required for the new refrigerant (R410A).  
Incomplete earthing may cause electric shock.  
For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter.  
•
•
•
Do not connect the earth line to a gas pipe, water pipe, lightning conductor, or a telephone earth line.  
After completing the repair or relocation work, check that the ground wires are connected properly.  
Install a circuit breaker that meets the specifications in the installation manual and the stipulations in the local regulations  
and laws.  
To Disconnect the Appliance from Main Power Supply.  
This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.  
•
•
•
•
Install the circuit breaker where it can be easily accessed by the agent.  
The installation fuse (all type can be used) must be used for the power supply line of this conditioner.  
When installing the circuit breaker outdoors, install one which is designed to be used outdoors.  
Under no circumstances must the power cable be extended. Connection trouble in the places where the cable is extended  
may give rise to smoking and/or a fire.  
•
•
•
Electrical wiring work shall be conducted according to law and regulation in the community and installation manual.  
Failure to do so may result in electrocution or short circuit.  
Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit. Capacity overflow  
may occur on the terminal block and may result in fire.  
When carrying out electric connection, use the wire specified in the Installation Manual and connect and fix the wires  
securely to prevent them applying external force to the terminals. Improper connection or fixing may result in fire.  
Test run  
•
Before operating the air conditioner after having completed the work, check that the electrical parts box cover of the indoor  
unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position. You may receive an  
electric shock if the power is turned on without first conducting these checks.  
•
When you have noticed that some kind of trouble (such as when an error display has appeared, there is a smell of burning,  
abnormal sounds are heard, the air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner,  
do not touch the air conditioner yourself but set the circuit breaker to the OFF position, and contact a qualified service  
person. Take steps to ensure that the power will not be turned on (by marking “out of service” near the circuit breaker, for  
instance) until qualified service person arrives. Continuing to use the air conditioner in the trouble status may cause  
mechanical problems to escalate or result in electric shocks or other failure.  
•
•
After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistance is 2 MΩ or more  
between the charge section and the non-charge metal section (Earth section). If the resistance value is low, a disaster such  
as a leak or electric shock is caused at user’s side.  
Upon completion of the installation work, check for refrigerant leaks and check the insulation resistance and water drainage.  
Then conduct a test run to check that the air conditioner is operating properly.  
Explanations given to user  
•
Upon completion of the installation work, tell the user where the circuit breaker is located. If the user does not know where  
the circuit breaker is, he or she will not be able to turn it off in the event that trouble has occurred in the air conditioner.  
If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF  
position, and contact a qualified service person(*1) to have the repairs done. Do not set the circuit breaker to the ON position  
until the repairs are completed.  
•
•
After the installation work, follow the Owner’s Manual to explain to the customer how to use and maintain the unit.  
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2 ACCESSORY PARTS  
3 INSTALLATION OF NEW REFRIGERANT  
AIR CONDITIONER  
Part name  
Owner’s Manual  
Installation Manual  
CD-ROM  
Q’ty  
1
Shape  
Usage  
(Be sure to hand it to the customers.)  
(Be sure to hand it to the customers.)  
–
–
This air conditioner adopts the new HFC refrigerant (R410A) which does not deplete the ozone layer.  
• R410A refrigerant is vulnerable to impurities such as water, oxidizing membranes, or oils because the pressure  
of R410A refrigerant is higher than that of the former refrigerant by approximately 1.6 times.  
As well as the adoption of the new refrigerant, the refrigerating oil has been also changed. Therefore, pay  
attention so that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle of the  
new refrigerant air conditioner during installation.  
• To prevent mixing of refrigerant or refrigerating oil, the size of the charge port of the main unit or connecting  
section of the installation tool differs to that of an air conditioner for the former refrigerant.  
Accordingly, exclusive tools are required for the new refrigerant (R410A) as shown below.  
2
For other languages that do not appear in this Installation Manual,  
Please refer to the enclosed CD-ROM.  
1
1
–
(Owner’s manual,  
Installation manual)  
Attached pipe  
(for Ø22.2)  
Connecting pipe for gas side piping  
(MAP080, MAP100 type)  
Attached pipe  
(for Ø28.6)  
Connecting pipe for gas side piping  
(MAP120, MAP140, MAP160 type)  
• For connecting pipes, use new and clean piping materials so that water or dust does not enter.  
1
1
„Required Tools and Cautions on handling  
F-GAS label  
Fill the items on the label after adding refrigerant.  
It is necessary to prepare the tools and parts for installation as described below. The tools and parts which will be  
newly prepared in the following items should be restricted to exclusive use.  
Explanation of symbols  
: Newly prepared (It is necessary to use it exclusively with R410A, separately from those for R22 or R407C.)  
: Former tool is available.  
Used tools  
Gauge manifold  
Usage  
Proper use of tools/parts  
Exclusive to R410A  
Vacuuming, charging refrigerant  
and operation check  
Charging hose  
Exclusive to R410A  
Charging cylinder  
Gas leak detector  
Charging refrigerant  
Checking gas leak  
Unusable (Use the Refrigerant charging balance.)  
Exclusive to R410A  
Usable if a counter-flow preventive adapter is  
attached  
Vacuum pump  
Vacuum drying  
Vacuum pump with counterflow  
Flare tool  
Vacuum drying  
R22 (Existing article)  
Flare processing of pipes  
Bending processing of pipes  
Recovering refrigerant  
Tightening flare nut  
Cutting pipes  
Usable by adjusting size  
R22 (Existing article)  
Bender  
Refrigerant recovery device  
Torque wrench  
Exclusive to R410A  
Exclusive to Ø12.7mm and Ø15.9mm  
R22 (Existing article)  
Pipe cutter  
Exclusive to R410A  
Enter the refrigerate name for identification  
Refrigerant canister  
Charging refrigerant  
Welding machine/Nitrogen gas  
cylinder  
Welding of pipes  
R22 (Existing article)  
R22 (Existing article)  
Refrigerant charging balance  
Charging refrigerant  
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„Installation space  
Leave space necessary for running, installation and servicing.  
4 SELECTION OF INSTALLATION PLACE  
Upon customer’s approval, install the air conditioner in a place which satisfies the following conditions:  
• Place where it can be installed horizontally.  
Air discharge  
• Place which can reserve a sufficient service space for safe maintenance or checks.  
• Place where there is no problem even if the drained water overflows.  
Air intake  
Air intake  
Air intake  
Avoid the following places:  
• Salty places (seaside area) or places with much gas sulfide (hot spring area) (If selecting such a place, special  
maintenance is required.)  
• Places where oil (including machine oil), steam, oil smoke or corrosive gas is generated.  
• Places where an organic solvent is used.  
Air intake  
• Chemical plants with a cooling system using liquid carbon dioxide.  
• Places where a device generating high frequency (inverter, non-utility generator, medical apparatus, or  
communication equipment) is set. (Malfunction or abnormal control of the air conditioner, or interference to  
devices listed above may occur.)  
Installation/servicing  
surface  
• Places where discharged air from the outdoor unit blows against the windows of a neighbour's house.  
• Places unable to bear the weight of the unit.  
Square hole for  
handling  
• Places with poor ventilation.  
Outdoor unit top view  
500mm or more  
(Rear side)  
10mm or more  
500mm or more  
(Front side)  
10mm or more  
20mm or more  
20mm or more  
NOTE  
• If there is an obstacle above the outdoor unit, leave a space of 2000mm or more to the top end of the outdoor unit.  
• If there is a wall around the outdoor unit, make sure that its height does not exceed 800mm.  
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▼ Combination of outdoor units  
5 CARRYING IN THE OUTDOOR UNIT  
Cooperating outdoor unit  
Unit 2  
Model name  
(Standard type)  
Unit 1  
Unit 3  
CAUTION  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1404*  
MMY-MAP1604*  
MMY-AP1814*  
MMY-AP2014*  
MMY-AP2214*  
MMY-AP2414*  
MMY-AP2614*  
MMY-AP2814*  
MMY-AP3014*  
MMY-AP3214*  
MMY-AP3414*  
MMY-AP3614*  
MMY-AP3814*  
MMY-AP4014*  
MMY-AP4214*  
MMY-AP4414*  
MMY-AP4614*  
MMY-AP4814*  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1404*  
MMY-MAP1604*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1604*  
MMY-MAP1604*  
MMY-MAP1604*  
MMY-MAP1604*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1604*  
MMY-MAP1604*  
MMY-MAP1604*  
MMY-MAP1604*  
MMY-MAP1604*  
MMY-MAP1604*  
–
–
–
–
Handle the outdoor unit carefully, observing the following items.  
• When using a forklift or other machinery for loading/unloading in transportation, insert the prongs of the forklift  
into the rectangular holes for handling as shown below.  
• When lifting up the unit, insert a rope able to bear the unit’s weight into the rectangular holes for handling, and  
tie the unit from 4 sides.  
(Apply padding in positions where the rope comes into contact with the outdoor unit so that no damage is caused  
to the outer surface of the outdoor unit.)  
–
–
–
–
–
–
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1404*  
MMY-MAP1604*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1404*  
MMY-MAP1604*  
MMY-MAP1604*  
MMY-MAP1604*  
–
–
–
(There are reinforcing plates on the side surfaces, so the rope cannot be passed through.)  
–
–
GOOD  
NO GOOD  
NO GOOD  
–
–
Plaster  
Rope  
–
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1404*  
MMY-MAP1604*  
Rectangular  
holes for  
handling  
Plaster  
Side  
NO GOOD  
Front /Back  
GOOD  
Rectangular  
holes for  
lifting  
Reinforcing  
plate  
Cooperating outdoor unit  
Model name  
(High Efficiency Model)  
Unit 4  
Unit 1  
Unit 2  
Unit 3  
–
Prongs of the  
forklift  
MMY-AP1624*  
MMY-AP2424*  
MMY-AP2624*  
MMY-AP2824*  
MMY-AP3024*  
MMY-AP3224*  
MMY-AP3424*  
MMY-AP3624*  
MMY-AP3824*  
MMY-AP4024*  
MMY-AP4224*  
MMY-AP4424*  
MMY-AP4624*  
MMY-AP4824*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP1204*  
–
–
–
–
–
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1204*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1004*  
MMY-MAP1204*  
EN  
11-EN  
12-EN  
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14-EN  
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„Weight centre and weight  
6 INSTALLATION OF THE OUTDOOR UNIT  
WARNING  
◆Weight centre of an outdoor unit  
•
•
Be sure to install the outdoor unit in a place able to bear its weight.  
If strength is insufficient, the unit may fall down resulting in human injury.  
Perform specified installation work to protect against strong wind and earthquakes.  
If the outdoor unit is imperfectly installed, an accident by falling or dropping may be caused.  
(B)  
(A)  
Anchor bolt position  
920  
Anchor bolt position  
700  
CAUTION  
• Drain water is discharged from the outdoor unit. (Especially while heating)  
Install the outdoor unit in a place with good drainage.  
• For installation, be careful of the strength and level of the foundation so that abnormal sounds (vibration or noise)  
are not generated.  
REQUIREMENT  
Installation in a snowfall area  
1. Install the outdoor unit on a higher foundation than the snowfall or set up a stand to install the unit so that snowfall  
will not affect the unit.  
• Set up a stand higher than the snowfall.  
• Apply an angled structure to the stand so that drainage will not be prevented. (Avoid using a stand with a flat  
surface.)  
2. Mount a snowfall-hood onto the air inlet and the air outlet.  
• Leave enough space for the snowfall-hood so that it will not be an obstacle for the air inlet and the air outlet.  
Snowfall-hood for air  
outlet (locally procured)  
Snowfall-hood for air  
outlet  
(4 faces)  
(locally procured)  
X
X
Stand  
(locally procured)  
1. To install multiple outdoor units, arrange them with 20mm or more spaces in between.  
Fix each outdoor unit with M12 anchor bolts at 4 positions. 20mm projection is appropriate for an anchor bolt.  
Weight (kg)  
20mm or more  
20mm or more  
No.  
(A)  
(B)  
Model type  
MAP080  
X (mm)  
500  
Y (mm)  
390  
Z (mm)  
Heat pump model  
Cooling only model  
MAP100  
MAP120  
MAP140  
MAP160  
645  
700  
242  
330  
241  
605  
350  
330  
M12 anchor bolt  
4 positions/unit  
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• Anchor bolt positions are as shown below:  
5. Be careful of the connecting arrangement of the header unit and follower units. Set the outdoor units in order of  
capacity from the one with the largest capacity. (A (Header unit) ≥ B ≥ C ≥ D)  
310 or  
more  
310 or  
more  
Continuous hole  
(15 x 20 long hole)  
A
A
A
• Be sure to use a header unit for the leading outdoor unit to be connected to the main pipe. (Figure 1 and 3)  
• Be sure to use a T-shaped branch joint (RBM-BT14E/RBM-BT24E: separately purchased) to connect each  
outdoor unit.  
• Be careful of the direction of the Outdoor unit connection piping kit for the liquid side. (As shown in Figure 2, a  
Outdoor unit connection piping kit cannot be attached so that the refrigerant of the main pipe flows directly into  
the header unit.)  
B
(Unit: mm)  
Liquid piping  
Model type  
MAP080*, MAP1000*, MAP120*  
MAP1404*, 1604*  
A
B
▼ Figure 1  
▼ Figure 2  
700  
920  
990  
GOOD  
NO GOOD  
1210  
Header unit  
A
Follower unit Follower unit  
Header unit  
A
Follower unit Follower unit  
B
C
B
C
2. When drawing out the refrigerant pipe from the  
underside, set the height of the stand to 500mm or  
more.  
3. Do not use 4 stands on the corner to support the  
outdoor unit.  
NO GOOD  
GOOD  
Main pipe  
NO GOOD  
To the indoor unit  
Main pipe  
To the indoor unit  
Gas piping  
[Inverse connection of a gas-side branch unit]  
▼ Figure 3  
▼ Figure 4  
4. Mount the vibration-proof rubber (including vibration-proof blocks) so that it fits under the whole clamping leg.  
GOOD  
NO GOOD  
GOOD  
GOOD  
Follower unit  
C
Header unit  
A
Follower unit  
B
Header unit  
A
Follower unit Follower unit  
B
C
Install the vibration-proof  
rubber so that the bent part  
of the fixing leg is  
Anchor bolt  
grounded.  
Vibration-proof rubber  
Main pipe  
Main pipe  
To the indoor unit  
NO GOOD  
NO GOOD  
NO GOOD  
To the indoor unit  
Extension valve  
To gas-side branch  
unit  
The bent part of the  
fixing leg is not  
grounded.  
• When attaching a Y-shaped branch unit for the gas side, attach it level with the ground (Be sure not to exceed  
±15 degrees.). Regarding a T-shape branch joints for the liquid side, there is no restriction for its angle.  
(Horizontal line)  
(Horizontal line)  
(A arrow view)  
Do not connect  
a branch unit  
vertically.  
Within ±15  
degrees  
Within ±15 degrees  
A
(B arrow view)  
B
At a level position  
EN  
15-EN  
16-EN  
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When drawing pipes downward  
7 REFRIGERANT PIPING  
[Vertical connection of branch units]  
▼ Figure 5  
▼ Figure 6  
WARNING  
GOOD  
NO GOOD  
•
•
If the refrigerant gas leaks during installation, ventilate the room.  
If the leaked refrigerant gas comes into contact with fire, noxious gas may be generated.  
After installation, check that the refrigerant gas does not leak.  
Header unit  
A
Follower unit Follower unit  
B
C
If the refrigerant gas leaks into the room and comes into contact with fire such as a fan heater, stove, or kitchen range,  
noxious gas may be generated.  
„Connection of refrigerant pipe  
• The refrigerant pipe connecting section is set in the  
outdoor unit. Remove the front panel and the piping/  
wiring panel. (M5: 9 pcs.)  
• As shown in the illustration on the right, the hooks are  
at the right and left sides of the front panel. Lift up and  
remove the front panel.  
L-shaped  
pipe  
Hook  
To gas-side  
branch unit  
To gas-side  
branch unit  
To gas-side branch  
unit  
To gas-side branch  
unit  
Front panel  
• Pipes can be drawn out forward or downward from the  
outdoor unit.  
• Adding only one follower unit is possible. Install the additional unit so that its position is opposite to the header  
unit. Use an extension valve for installation (See the figure above.).  
Specify the pipe diameter in advance to allow for adding another unit.  
Piping/wiring panel  
(Rear piping)  
• When drawing out the pipe forward, draw it out to the  
outside via the piping/wiring panel, and leave a space  
of 500mm or more from the main pipe connecting the  
outdoor unit with the indoor unit, considering service  
work or other work on the unit. (For replacing the  
compressor, 500mm or more space is required.)  
• When drawing out the pipe downward, remove the  
knockouts on the base plate of the outdoor unit, draw  
the pipes out of the outdoor unit, and perform piping on  
(Left  
(Right  
piping)  
piping)  
(Left piping)  
(Right piping)  
Drawing out  
downward  
the right/left or rear side. Downward length of the balance pipe should be 5m or less.  
Ball valve of gas  
side  
Ball valve of gas  
side  
Ball valve of liquid  
side  
Packed valve of liquid  
side  
Packed valve of  
balance pipe  
Packed valve of  
balance pipe  
(MAP080, MAP100, MAP120)  
(MAP140, MAP160)  
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Type  
Pipe  
diameter  
REQUIREMENT  
Draw-out forward  
Draw-out downward  
• For a welding work of the refrigerant pipes, be sure to use nitrogen gas in order to prevent oxidation of the inside  
of the pipes; otherwise clogging of the refrigerating cycle due to oxidized scale may occur.  
• Use clean and new pipes for the refrigerant pipes and perform piping work so that water or dust does not  
contaminate the refrigerant.  
Cut the L-shaped pipe at the horizontal straight Cut the L-shape pipe at the vertical straight  
section, then braze the supplied attachment  
section, then braze the supplied attachment  
pipe, and the socket and pipe procured locally. pipe, and the socket and pipe procured locally.  
• Be sure to use a double spanner to loosen or tighten the flare nut. If a single spanner is used, the required level  
of tightening cannot be obtained. Tighten the flare nut with the specified torque. (If it is hard to loosen or tighten  
the flare nut of the balance pipe or packed valve of the liquid side with a double spanner, loosen or tighten the  
flare nut while holding the valve mounting plate with a spanner.)  
Gas  
pipe  
MAP140  
MAP160  
Liquid  
pipe  
Gas pipe  
Liquid  
pipe  
Ø28.6  
Gas  
pipe  
Gas pipe  
Attachment pipe  
Attachment  
pipe  
Socket  
Balance  
pipe  
Balance  
pipe  
Socket  
Pipe  
Section  
to be cut  
Packed valve of  
Pipe  
Outer dia. of  
copper pipe  
balance pipe  
Section  
to be cut  
Tightening torque (N•m)  
6.4 mm  
9.5 mm  
14 to 18 (1.4 to 1.8 kgf•m)  
33 to 42 (3.3 to 4.2 kgf•m)  
50 to 62 (5.0 to 6.2 kgf•m)  
63 to 77 (6.3 to 7.7 kgf•m)  
Ball valve of gas side  
Extruding margin of copper pipe with flare machining: B (Unit: mm)  
Packed valve of liquid  
side  
12.7 mm  
15.9 mm  
Copper pipe outer  
dia.  
When using R410A  
tool  
When using  
conventional tool  
9.5  
12.7  
15.9  
0 to 0.5  
1.0 to 1.5  
Pipe connection method of valve at the gas side (Example)  
Pipe  
Extruding margin of copper pipe with flare tools: A (Unit: mm)  
Type  
Draw-out forward  
Draw-out downward  
diameter  
+0  
-0.4  
Copper pipe outer dia.  
A
A
Cut the L-shaped pipe at the horizontal straight  
section, then braze the supplied attachment  
pipe and the socket and pipe procured locally.  
Cut the L-shaped pipe at the vertical straight  
section, then braze the supplied attachment  
pipe and the socket and pipe procured locally.  
9.5  
13.2  
16.6  
19.7  
12.7  
15.9  
Gas  
pipe  
Gas pipe  
Gas pipe  
Liquid  
Liquid  
pipe  
MAP080  
MAP100  
* When using the conventional flare tool, to connect R410A pipes with flaring, make a margin approx. 0.5mm  
longer than that of an R22 pipe so that the flare size matches the one specified. It is convenient to use a copper  
pipe gauge for size adjustment of the extruding margin.  
Gas  
Ø22.2  
pipe  
Attachment  
pipe  
pipe  
Attachment  
Balance  
pipe  
Balance  
pipe  
Socket  
Pipe  
pipe  
Socket  
Section  
to be cut  
Pipe  
Section to be  
cut  
Cut the L-shaped pipe at the horizontal straight Cut the L-shaped pipe at the vertical straight  
section, then braze the supplied attachment section, then braze the supplied attachment  
pipe and the socket and pipe procured locally. pipe and the socket and pipe procured locally.  
Gas  
pipe  
Liquid  
pipe  
Liquid  
pipe  
Gas pipe  
MAP120  
Ø28.6  
Gas pipe  
Attachment pipe  
Socket  
Gas  
pipe  
Balance  
pipe  
Balance  
pipe  
Attachment  
pipe  
Socket  
Section  
to be cut  
Pipe  
Pipe  
Section to be  
cut  
EN  
19-EN  
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Table 1  
Coupling size of brazed pipe  
Capacity code  
Connected section  
Indoor unit  
Equivalent to  
capacity rank  
External size  
Internal size  
Equivalent to HP  
capacity  
2.2  
2.8  
3.6  
4.5  
5.6  
7.1  
8
007  
009  
012  
015  
018  
024  
027  
030  
036  
048  
056  
072  
096  
0.8  
1
G
K
1.25  
1.7  
2
(Unit: mm)  
2.5  
3
Connected section  
Internal size  
3.2  
4
9
External size  
Standard outer dia.  
of connected  
Min. depth of  
insertion  
Min. thickness  
of coupling  
11.2  
14  
Standard outer dia.  
(Allowable difference)  
Oval value  
copper pipe  
5
C
F
K
G
6
6
16  
+0.04  
-0.02  
6.35  
9.52  
6.35 (±0.03)  
9.52 (±0.03)  
12.70 (±0.03)  
15.88 (±0.03)  
19.05 (±0.03)  
22.22 (±0.03)  
28.58 (±0.04)  
34.90 (±0.04)  
38.10 (±0.05)  
41.28 (±0.05)  
6.45 (  
9.62 (  
)
)
7
8
0.06 or less  
0.08 or less  
0.10 or less  
0.13 or less  
0.15 or less  
0.16 or less  
0.20 or less  
0.25 or less  
0.27 or less  
0.28 or less  
0.50  
0.60  
0.70  
0.80  
0.80  
0.82  
1.00  
1.20  
1.26  
1.35  
8
22.4  
28  
+0.04  
-0.02  
7
10  
+0.04  
-0.02  
12.70  
15.88  
19.05  
22.22  
28.58  
34.92  
38.10  
41.28  
12.81 (  
16.00 (  
19.19 (  
22.36 (  
28.75 (  
35.11 (  
38.31 (  
41.50 (  
)
)
)
)
)
)
)
)
9
8
Table 2  
+0.04  
-0.02  
9
8
+0.03  
-0.03  
11  
11  
13  
14  
15  
15  
10  
10  
12  
13  
14  
14  
Capacity code  
Outdoor unit  
model name  
(High Efficiency  
model)  
Capacity code  
Outdoor unit  
model name  
(Standard model)  
No. of  
No. of  
indoor  
units  
+0.03  
-0.03  
indoor  
units  
Equivalentto Equivalentto  
Equivalentto Equivalentto  
+0.06  
-0.02  
HP  
capacity  
HP  
capacity  
+0.04  
-0.04  
MMY-MAP0804∗  
MMY-MAP1004∗  
MMY-MAP1204∗  
MMY-MAP1404∗  
MMY-MAP1604∗  
MMY-AP1814∗  
MMY-AP2014∗  
MMY-AP2214∗  
MMY-AP2414∗  
MMY-AP2614∗  
MMY-AP2814∗  
MMY-AP3014∗  
MMY-AP3214∗  
MMY-AP3414∗  
MMY-AP3614∗  
MMY-AP3814∗  
MMY-AP4014∗  
MMY-AP4214∗  
MMY-AP4414∗  
MMY-AP4614∗  
MMY-AP4814∗  
8
22.4  
28  
13  
16  
20  
23  
27  
30  
33  
37  
40  
43  
47  
48  
48  
48  
48  
48  
48  
48  
48  
48  
48  
—
—
—
—
—
—
16  
—
—
—
24  
26  
28  
30  
32  
34  
36  
38  
40  
42  
44  
46  
48  
—
—
—
—
—
—
27  
—
—
—
40  
43  
47  
48  
48  
48  
48  
48  
48  
48  
48  
48  
48  
+0.08  
-0.02  
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
36  
38  
40  
42  
44  
46  
48  
+0.08  
-0.02  
33.5  
40  
—
—
—
—
45  
MMY-AP1624∗  
—
45  
„Selection of pipe size  
50.4  
56  
—
—
—
61.5  
68  
—
—
◆Capacity code of indoor and outdoor units  
Selection of pipe material  
• For the indoor unit, the capacity code is decided at each capacity rank. (Table 1)  
• The capacity codes of the outdoor units are decided at each capacity rank. The maximum number of connectable  
indoor units and the total value of capacity codes of the indoor units are also decided. (Table 2)  
MMY-AP2424∗  
MMY-AP2624∗  
MMY-AP2824∗  
MMY-AP3024∗  
MMY-AP3224∗  
MMY-AP3424∗  
MMY-AP3624∗  
MMY-AP3824∗  
MMY-AP4024∗  
MMY-AP4224∗  
MMY-AP4424∗  
MMY-AP4624∗  
MMY-AP4824∗  
68  
73  
73  
78.5  
85  
78.5  
85  
90  
90  
NOTE  
96  
96  
101  
106.5  
112  
118  
123  
130  
135  
101  
106.5  
112  
118  
123  
130  
135  
Compared with the capacity code of the outdoor unit, the total value of capacity codes of the connectable indoor units differs  
based on the height difference between the indoor units.  
• When the height difference between the indoor units is 15m or less: Up to 135% of the capacity code (Equivalent  
to HP) of the outdoor unit (Equivalent to HP) of the outdoor unit  
• When the height difference between the indoor units is over 15m: Up to 105% of the capacity code  
* For combination of the outdoor units, refer to “Combination of outdoor units”.  
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No.  
(1)  
Piping parts  
Name  
Selection of pipe size  
Connecting pipe size of outdoor unit  
Header  
unit A  
Follower Follower  
unit B  
unit C  
Follower  
unit D  
Type  
MAP080  
Gas side  
Ø22.2  
Liquid side  
Ø12.7  
Outdoor unit  
È
Outdoor unit  
connection piping  
kit  
Outdoor unit  
Same as connecting  
pipe size of the  
outdoor unit.  
Outdoor unit  
connecting pipe  
MAP100  
MAP120  
MAP140  
MAP160  
Ø22.2  
Ø12.7  
Ø28.6  
Ø12.7  
Ø28.6  
Ø15.9  
Ø28.6  
Ø15.9  
(2) Balance pipes Ø9.5  
(1)  
(1)  
(1)  
(8)  
Pipe size for connecting piping between outdoor units  
(1) Outdoor unit connecting pipes  
Total capacity codes of  
outdoor units at the  
(8)  
(8)  
Gas  
side  
Liquid Balanc  
downstream side  
(2)  
side  
e pipe  
(2)  
Equivalentto Equivalentto  
Pipe size differs based  
on the total capacity  
code value of outdoor  
units at the  
downstream side.  
(See Table 2.)  
HP  
capacity  
Between Outdoor Main connecting  
(3) Main  
piping  
unit connection  
piping kits  
piping between  
outdoor units  
(2)  
45.0 to below  
61.5  
(8) Outdoor unit connection piping kit (For linking of outdoor units)  
16 to below 22  
Ø28.6  
Ø34.9  
Ø15.9  
Ø19.1  
61.5 to below  
73.0  
22 to below 26  
(7) Branching header  
(6)  
(4) Branching pipe  
Ø9.5  
73.0 to below  
101.0  
26 to below 36  
36 or more  
Ø34.9  
Ø41.3  
Ø19.1  
Ø22.2  
First branch  
Y-shape  
101.0 or more  
(6) Y-shaped branching joint  
(4)  
(5) Indoor unit connecting pipe  
(5)  
branching joint  
Size of main piping  
(5)  
(5)  
(5)  
Total capacity codes of all  
outdoor units  
Indoor unit  
(4)  
Gas  
side  
Liquid  
side  
Equivalent to  
Equivalent to  
capacity  
HP  
8 to below 12  
12 to below 14  
14 to below 22  
22.4 to below 33.5  
33.5 to below 38.4  
38.4 to below 61.5  
Ø22.2  
Ø28.6  
Ø28.6  
Ø12.7  
Ø12.7  
Ø15.9  
(6)  
Outdoor unit  
connection piping  
kit of header unit  
È
First branching  
section  
(6)  
(4)  
(6)  
(6)  
(4)  
Pipe size differs based  
on the capacity code  
of the outdoor unit.  
(See Table 2.)  
(4)  
Main piping  
(3)  
61.5 to below  
101.0  
22 to below 36  
Ø34.9  
Ø19.1  
(5)  
(5)  
(5)  
(5)  
(5)  
101.1 to below  
130.0  
36 to below 46  
46 or more  
Ø41.3  
Ø22.2  
Ø22.2  
Indoor unit  
130.0 or more  
* Ø41.3  
*
Maximum equivalent length of main pipe is 70m or less (The actual  
length is 50m or less.).  
Pipe size between branching sections *1  
Total capacity codes of indoor  
units at downstream side  
Gas  
side  
Liquid  
side  
Equivalent to  
Equivalent to HP  
Pipe size differs based  
on the total capacity  
code value of indoor  
units at the  
capacity  
Below 2.4  
Below 6.6  
Ø12.7  
Ø15.9  
Ø22.2  
Ø28.6  
Ø34.9  
Ø41.3  
Ø9.5  
Ø9.5  
downstream side. If  
the total value  
2.4 to below 6.4  
6.4 to below 12.2  
12.2 to below 20.2  
6.6 to below 18.0  
18.0 to below 34.0  
34.0 to below 56.5  
Branching section  
È
Branching section  
Branching pipe  
(4)  
Ø12.7  
Ø15.9  
Ø19.1  
Ø22.2  
exceeds the capacity  
code of the outdoor  
unit, apply the  
capacity code of the  
outdoor unit. (See  
Table 1 and 2.)  
20.2 to below 35.2 56.5 to below 98.5  
35.2 or more 98.5 ore more  
*1: If exceeding the main pipe size, set the size to the same as the  
main pipe size.  
EN  
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No.  
(5)  
Piping parts  
Name  
Selection of pipe size  
Connecting pipe size of indoor unit  
Remarks  
Liquid  
„Allowable length of refrigerant pipes and allowable height  
difference between units  
Capacity rank  
Gas side  
side  
Ø6.4  
Ø6.4  
Ø6.4  
Ø9.5  
Ø12.7  
D
15m or less real length  
Real length exceeds 15m  
Ø9.5  
Ø12.7  
Ø12.7  
Ø15.9  
Ø22.2  
Branching section  
È
Indoor unit  
007 to 012 type  
Follower unit  
Indoor unit  
connecting pipe  
Outdoor unit  
015 to 018 type  
024 to 056 type  
072 to 096 type  
A
B
C
Header Follower Follower  
unit unit unit  
Height  
difference  
between  
outdoor  
units  
Selection of branching section (Y-shaped branching joint)  
Total capacity code of indoor units  
H3 ≤ 5 m  
Ld  
Lc  
La  
Model name  
Lb  
Equivalent to  
Equivalent to HP  
capacity  
Y-shaped  
branching joint  
Branching section  
(6)  
Below 6.4  
Below 18.0  
18.0 to below 40.0  
40.0 to below 70.5  
70.5 or more  
RBM-BY55E  
RBM-BY105E  
RBM-BY205E  
RBM-BY305E  
LA  
LB  
6.4 to below 14.2  
14.2 to below 25.2  
25.2 or more  
Y-shape  
branching joint  
Outdoor unit connection piping kit  
(For linking of outdoor units)  
The longest piping between outdoor units:  
L0 ≤ 25 m  
Selection of branching section (Branching header)  
Total capacity code of indoor units  
Height  
difference  
between  
outdoor  
Model name  
Equivalent to  
capacity  
Equivalent to HP  
and indoor  
units:  
H1 ≤ 70 m  
Below 14.2  
Below 40.0  
RBM-HY1043E  
For 4  
branches  
Branching header  
14.2 to below 25.2 40.0 to below 70.5 RBM-HY2043E  
Below 14.2 Below 40.0 RBM-HY1083E  
14.2 to below 25.2 40.0 to below 70.5 RBM-HY2083E  
*2  
Branching header  
Y-shaped branching  
joint  
Branching section Branching header  
(7)  
Indoor unit connecting  
For 8  
branches  
L7  
c
pipe  
First branching  
section  
Indoor unit  
a
b
d
e
*2: Up to a total of 6.0 maximum equivalent to HP capacity codes is connectable to one line  
after branching of header. When the total capacity codes of all outdoor units are 12 to below  
26 (equivalent to HP) and you use a branching header for the first branching section, use  
a RBM-HY2043E or RBM-HY2083E regardless of the total capacity codes of outdoor units  
at downstream side. In addition, you cannot use a branching header for the first branching  
section when the total capacity codes of all outdoor units are over 26 (equivalent to HP).  
L3  
The longest piping length: L ≤ 235 m  
The longest piping length from the first branch: Li ≤ 90 m  
Height  
difference  
between  
Y-shaped  
branching joint  
Outdoor unit connection piping kit (For linking of outdoor units)  
L6  
L5  
L4  
indoor units:  
H2 ≤ 40 m  
*3  
Total capacity code of outdoor units  
i
h
j
g
f
Model name  
Equivalent to  
Equivalent to HP  
capacity  
Outdoor unit  
connection piping  
Indoor unit  
Outdoor unit  
Below 26.0  
Below 73.0  
RBM-BT14E  
RBM-BT24E  
Branching section  
(8)  
kit (For linking of  
outdoor units)  
connection piping  
kit (For linking of  
outdoor units)  
(j)  
26.0 or more  
Above 73.0  
*3: Downstream side when regarding the main piping as the start point  
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◆System restriction  
„Airtightness test  
After the refrigerant piping has been finished, execute an airtight test.  
Outdoor unit combination  
Total capacity of outdoor units  
Indoor unit connection  
Up to 4 units  
Up to 48 HP  
Up to 48 units  
For an airtight test, connect a nitrogen gas canister as shown in the figure on the next page and apply pressure.  
• Be sure to apply pressure from the service ports of the packed valves (or ball valves) at the liquid side, gas side  
and balance pipe side.  
• An airtight test can only be performed at the service ports at the liquid side, gas side and balance pipe side on  
header unit.  
Total capacity of indoor units  
(varies depending on the height difference between  
indoor units.)  
H2 ≤ 15m  
135% of outdoor units’ capacity  
105% of outdoor units’ capacity  
15m < H2  
• Close the valves fully at the gas side, liquid side and balance pipe side. As there is a possibility that the nitrogen  
gas will enter into the cycle of outdoor units, re-tighten the valve rods at the liquid side and balance pipe side  
before applying pressure.  
(When using MAP140 or MAP160, you do not have to re-tighten the liquid side valve rod as their valves at the  
liquid side are ball valves.)  
◆Cautions for installation  
• Set the outdoor unit first connected to the bridging pipe to the indoor units as the header unit.  
• Install the outdoor units in order of their capacity codes: A (header unit) ≥ B ≥ C ≥ D  
• When connecting gas pipes to indoor units, use Y-shaped branching joints to keep pipes level.  
• When piping to outdoor units using Outdoor unit connection piping kits, intersect the pipes to the outdoor unit  
and those to indoor units at a right angle as shown in figure 1 on “6. INSTALLATION OF THE OUTDOOR UNIT”.  
Do not connect them as in figure 2 on “6. INSTALLATION OF THE OUTDOOR UNIT”.  
• For each refrigerant line, apply pressure gradually in steps at the liquid side, gas side and balance pipe side.  
Be sure to apply pressure at the gas side, liquid side, and balance pipe side.  
WARNING  
Never use oxygen, flammable gases, or noxious gases in an airtight test.  
◆Allowable length and allowable height difference of refrigerant piping  
Low pressure High pressure  
Allowable  
Item  
Pipes  
gauge  
gauge  
value  
Connected to indoor unit  
Main piping  
Lessthan 34HP or  
less  
Total extension of  
pipe (liquid pipe,  
real length)  
Less than 96kW  
96kW or more  
300m  
LA + LB + La + Lb + Lc + Ld + L1 + L2 + L3 + L4  
+ L5 + L6 + L7 + a + b + c + d + e + f + g + h + i + j  
Gas side valve fully closed  
Header outdoor unit  
Service port  
Gauge  
manifold  
VL  
VH  
34HP or more  
Equivalent length  
Real length  
500m  
235m  
Farthest piping length L (*1)  
Main piping length  
LA + LB + Ld + L1 + L3 + L4 + L5 + L6 + j  
190m  
Brazed  
Packed valve details  
Reducing  
valve  
Equivalent length  
Real length  
120m (*2)  
100m (*2)  
L1  
To outdoor unit  
To gauge manifold  
Copper pipe  
Pipe length  
Farthest equivalent piping length from the first branch Li  
(*1)  
Liquid-side service port  
Liquid-side valve  
Fully  
90m (*3)  
25m  
L3 + L4 + L5 + L6 + j  
LA + LB + Ld (LA + Lb, LA + LB + Lc)  
La, Lb, Lc, Ld  
Gas-side valve  
closed  
Farthest equivalent piping length between outdoor units L0  
(*1)  
Copper  
pipe  
To  
Balance  
service port  
Service port  
outdoor  
To  
outdoor  
unit  
Maximum equivalent piping length of pipes connected to  
outdoor units  
10m  
unit  
Gas-side  
service port  
Liquid valve fully closed  
Nitrogen  
gas  
Fully  
closed  
Maximum real length of pipes connected to indoor units  
Maximum equivalent length between branching sections  
Upper outdoor  
30m  
50m  
a, b, c, d, e, f, g, h, i, j  
L2, L3, L4, L5, L6, L7  
Piping at site  
Balance valve  
Piping at site  
Piping at site  
70m (*4)  
40m (*5)  
–
–
units  
Service port  
Height between outdoor and indoor  
units H1  
Lower outdoor  
Balanced pipe side valve  
fully closed  
Height  
difference  
units  
Height between indoor units H2  
40m  
5m  
–
–
Height between indoor units H3  
Connected to other follower units  
*1: Farthest outdoor unit from the first branch: (D), farthest indoor unit: (j)  
Able to detect a serious leakage  
1. Apply pressure 0.3MPa (3.0kg/cm²G) for 5 minutes or more.  
2. Apply pressure 1.5MPa (15kg/cm²G) for 5 minutes or more.  
*2: If the total capacity of outdoor units is 46HP or more, make the equivalent length 70m (real length 50m) or less.  
*3: Make the difference 65m or less if the height difference between outdoor and indoor units (H1) is more than 3m.  
*4: Make the difference 50m or less if the height difference between indoor units (H2) is more than 3m.  
*5: Make the difference 30m or less if the height difference between indoor units (H2) is more than 3m.  
Available to detect slow leakage  
3. Apply pressure 3.73MPa (38kg/cm²G) for approx. 24 hours.  
• If there is no pressure decrease after 24 hours, the test is passed.  
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NOTE  
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„Vacuum drying  
However, if the environmental temperature changes from the moment of applying pressure to 24 hours after that, the pressure  
will change by about 0.01MPa (0.1kg/cm²G) per 1°C. Consider the pressure change when checking the test result.  
• Be sure to perform vacuuming from both liquid and gas sides.  
• Be sure to use a vacuum pump equipped with the counter-flow prevention function so that oil in the pump will  
not flow back into piping for air conditioners. (If oil in the vacuum pump enters in the air conditioner with R410A  
refrigerant, a problem may be caused in the refrigerating cycle.)  
REQUIREMENT  
When pressure decrease is detected in steps 1-3, check the leakage at the connecting points.  
Check the leakage using a foaming agent or other measures and seal the leak with re-brazing, flare retightening or other  
methods. After sealing, execute an airtight test again.  
After finishing the airtight test and discharging nitrogen gas, connect the gauge manifold to the service ports of the liquid side,  
gas side, and balance pipe side and connect a vacuum pump as shown in the figure below. Be sure to perform vacuuming for  
the liquid, gas, and balance pipe sides.  
Low pressure High pressure  
gauge  
gauge  
Connected to indoor unit  
Packed valve fully closed  
(gas side)  
Main pipe  
Gauge  
manifold  
V
L
VH  
Header outdoor unit  
Service port  
Brazed  
Packed valve details  
To outdoor unit  
To gauge manifold  
To  
outdoor  
unit  
Fully  
closed  
Gas-side valve  
Liquid-side service port  
Liquid-side valve  
P
Service port  
To  
Balance  
outdoor  
unit  
service port  
Vacuum pump  
Gas-side  
Packed valve fully closed  
(liquid side)  
service port  
Fully  
closed  
Piping at site  
Piping at site  
Balance  
valve  
Piping at site  
Service port  
Packed valve fully closed  
(balance)  
Follower units  
• Use a vacuum pump with a high vacuuming degree [-100.7kPa (5Torr, -755mmHg)] and large exhaust gas  
amount (40L/minute or larger).  
• Perform vacuuming for 2 or 3 hours, though the time differs depending on the pipe length. Check that all the  
packed valves at the liquid side, gas side, and balance pipe side are fully closed.  
• If the pressure does not reach -100.7kPa or less, continue vacuuming for 1 hour or more. If the pressure does  
not reach -100.7kPa after 3 hours of vacuuming, stop vacuuming and check for air leakage.  
• If the pressure reaches -100.7kPa or less after vacuuming for 2 hours or more, close the valves VL and VH on  
the gauge manifold fully and stop the vacuum pump. Leave it as it is for 1 hour to confirm that the vacuuming  
degree does not change.  
If the degree of vacuum loss is large, moisture may remain in the pipes. In that case, inject dry nitrogen gas and  
apply pressure to 0.05MPa and perform vacuuming again.  
• After finishing the above procedure of vacuuming, exchange the vacuum pump with a refrigerant canister and  
advance to the additional charging of refrigerant.  
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Table 2  
„Adding refrigerant  
C (Corrective amount  
of refrigerant) (kg)  
After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant.  
Combined HP (HP)  
Combined outdoor units (HP)  
8
8HP  
10HP  
12HP  
14HP  
16HP  
10HP  
10HP  
12HP  
12HP  
16HP  
16HP  
16HP  
16HP  
12HP  
12HP  
16HP  
16HP  
16HP  
16HP  
16HP  
16HP  
8HP  
–
–
–
–
1.5  
2.5  
Calculation of additional refrigerant charge amount  
Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site.  
For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.  
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
36  
38  
40  
42  
44  
46  
48  
16  
24  
26  
28  
30  
32  
34  
36  
38  
40  
42  
44  
46  
48  
–
–
–
–
–
3.5  
–
–
–
8.5  
NOTE  
–
–
–
10.5  
0.0  
8HP  
–
–
If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without additional  
refrigerant.  
10HP  
10HP  
12HP  
10HP  
12HP  
14HP  
16HP  
12HP  
12HP  
12HP  
12HP  
14HP  
16HP  
16HP  
16HP  
8HP  
–
–
3.0  
–
–
5.0  
–
–
7.5  
Outdoor unit type  
MAP080  
MAP100  
MAP120  
MAP140  
MAP160  
Heat pump  
type  
–
–
8.5  
Charging amount (kg)  
11.5  
Standard type  
–
–
9.5  
–
–
11.5  
12.5  
3.0  
Outdoor unit type  
MAP080  
MAP100  
MAP120  
MAP140  
MAP160  
Cooling only  
type  
–
–
Charging amount (kg)  
10.5  
10.5  
10.5  
11.5  
11.5  
10HP  
12HP  
10HP  
12HP  
12HP  
12HP  
14HP  
16HP  
–
–
–
–
4.0  
Corrective amount of refrigerant  
depending on HP of co-  
operating outdoor units  
(Table 2)  
Additional refrigerant charge  
amount per 1m liquid pipe  
(Table 1)  
Additional refrigerant charge  
amount at local site  
6.0  
Real length of liquid pipe  
=
×
+
–
7.0  
–
8.0  
Table 1  
–
10.0  
12.0  
14.0  
0.0  
Liquid pipe dia. (mm)  
6.4  
9.5  
12.7  
15.9  
19.1  
22.2  
–
Additional refrigerant amount/1m liquid  
pipe (kg/m)  
–
0.025  
0.055  
0.105  
0.160  
0.250  
0.350  
–
8HP  
8HP  
8HP  
8HP  
8HP  
10HP  
8HP  
8HP  
8HP  
10HP  
10HP  
10HP  
10HP  
12HP  
12HP  
–
-4.0  
-4.0  
-2.0  
0.0  
10HP  
10HP  
10HP  
8HP  
8HP  
–
10HP  
10HP  
8HP  
–
–
8HP  
8HP  
8HP  
8HP  
10HP  
10HP  
10HP  
10HP  
12HP  
-6.0  
-6.0  
-6.0  
-6.0  
-5.0  
-4.0  
-2.0  
0.0  
10HP  
10HP  
10HP  
10HP  
12HP  
12HP  
12HP  
12HP  
8HP  
High Efficiency type  
10HP  
10HP  
10HP  
10HP  
12HP  
12HP  
12HP  
2.0  
Charging of refrigerant  
• Keeping the valve of the outdoor unit closed, be sure to charge the liquid refrigerant into the service port at the  
liquid side.  
• If the specified amount of refrigerant cannot be charged, fully open the valves of the outdoor unit at liquid and  
gas sides, operate the air conditioner in COOL mode, and then charge refrigerant into service port at the gas  
side. In this time, choke the refrigerant slightly by operating the valve of the canister to charge liquid refrigerant.  
• The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.  
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„Full opening of the valve  
„F-GAS label  
Open the valves of the outdoor unit fully.  
This product contains fluorinated greenhouse gases covered by the Kyoto Protocol  
• Chemical Name of Gas  
• Global Warming Potential (GWP) of Gas  
R410A  
1975  
MAP080  
MAP100  
MAP120  
MAP140  
MAP160  
Packed valve  
Ball valve  
CAUTION  
Using a 4mm-hexagonal wrench, Using a flathead screwdriver, turn it counterclockwise by 90° until it hits the  
fully open the valve rods.  
stopper. (Full open)  
1. Stick the enclosed refrigerant label adjacent to the charging and/or recovering location.  
2. Clearly write the charged refrigerant quantity on the refrigerant label using indelible ink. Then, place the included  
transparent protective sheet over the label to prevent the writing from rubbing off.  
Position of screwdriver slot  
Fully opened  
Service  
port  
Valve unit  
Fully closed  
3. Prevent emission of the contained fluorinated greenhouse gas. Ensure that the fluorinated greenhouse gas is  
never vented to the atmosphere during installation, service or disposal. When any leakage of the contained  
fluorinated greenhouse gas is detected, the leak shall be stopped and repaired as soon as possible.  
4. Only qualified service personnel are allowed to access and service this product.  
5. Any handling of the fluorinated greenhouse gas in this product, such as when moving the product or recharging  
the gas, shall comply under (EC) Regulation No. 842/2006 on certain fluorinated greenhouse gases and any  
relevant local legislation.  
Using flathead  
screwdriver, turn it  
counterclockwise by  
90° until it hits the  
stopper. (Full open)  
Liquid side  
(1)  
(2)  
Slot  
Flare nut  
*
When opened fully, do not apply  
excessive torque after the screwdriver hits  
the stopper; otherwise a problem may be  
caused on the valve. (5 N•m or less)  
6. Periodical inspections for refrigerant leaks may be required depending on European or local legislation.  
7. Contact dealers, installers, etc., for any questions.  
Balance packed valve  
Using a 4mm-hexagonal wrench, fully open the valve rods.  
Balance pipe  
Ball valve  
Using a minus screwdriver, turn it counterclockwise by 90° until it hits the stopper.  
(Full open)  
Pre-charged Refrigerant at Factory [kg],  
specified in the nameplate  
R410A  
kg  
Additional Charge on Installation Site  
kg  
kg  
[kg]  
Gas side  
Fully opened  
Fully closed  
„Heat insulation for pipe  
• Apply heat insulation of pipe separately at the liquid, gas, and balance sides.  
• Be sure to use thermal insulator resistant up to 120°C or higher for pipes at the gas side.  
„Finishing after connecting pipes  
• After piping connection work has been finished, cover the opening of the piping/wiring panel with the piping  
cover, or fill silicon or putty into the space between the pipes.  
• In case of drawing-out the pipes downward or sideward, also close the openings of the base plate and the side  
plate.  
• Under the opened condition, a problem may be caused due to the entering of water or dust.  
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When using the piping cover  
When not using the piping cover  
8 ELECTRIC WIRING  
Piping/wiring panel  
Piping/wiring panel  
WARNING  
The appliance shall be installed in accordance with national wiring regulations.  
Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire.  
Drawing-out sideward  
Drawing-out sideward  
CAUTION  
Fill silicon or putty into the  
periphery of the pipes.  
Close the opening with the  
pipe cover.  
• Perform wiring of power supply complying with the rules and regulations of the local electric company.  
• Do not connect 380V - 415V power to the terminal blocks for control cables (U1, U2, U3, U4, U5, U6); otherwise,  
the unit may break down.  
Drawing-out  
frontward  
Drawing-out  
frontward  
Drawing-out  
downward  
Drawing-out  
downward  
• Be sure that electric wiring does not come into contact with high-temperature parts of piping; otherwise, the  
coating of cables may melt and cause an accident.  
• After connecting wires to the terminal block, take off the traps and fix the wires with cord clamps.  
• Follow the same structure for both the control wiring and refrigerate piping.  
• Do not conduct power to indoor units until vacuuming of the refrigerant pipes has finished.  
◆Pipe holding bracket  
Attach pipe holding brackets following the table below.  
Diameter of pipe (mm)  
Ø15.9 - Ø19.1  
Interval  
2m  
• For the wiring of power to indoor units and that between indoor and outdoor units, follow the instructions in the  
installation manual of each indoor unit.  
Ø22.2 - Ø41.3  
3m  
„Power supply specifications  
Do not bridge the power between outdoor units  
through the equipped terminal blocks (L1, L2, L3,  
N).  
Power supply for  
outdoor units  
NO GOOD  
◆Power wiring selection  
Standard model  
MCA: Minimum Circuit Amps  
MOCP: Maximum Overcurrent Protection (Amps)  
Power Supply  
MCA  
(A)  
MOCP  
(A)  
Model  
Phase and frequency  
Nominal Voltage  
MMY-MAP0804*  
MMY-MAP1004*  
MMY-MAP1204*  
MMY-MAP1404*  
MMY-MAP1604*  
23.5  
25.5  
28.5  
33.2  
36.5  
32  
32  
40  
40  
50  
3N~ 50Hz  
380-400-415V  
MMY-AP1814*  
MMY-AP2014*  
MMY-AP2214*  
MMY-AP2414*  
MMY-AP2614*  
MMY-AP2814*  
MMY-AP3014*  
MMY-AP3214*  
49.0  
51.0  
54.0  
57.0  
62.0  
65.0  
69.7  
73.0  
63  
63  
63  
63  
80  
80  
80  
100  
3N~ 50Hz  
380-400-415V  
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Power Supply  
Phase and frequency  
„Specifications for communication wiring  
MCA  
(A)  
MOCP  
(A)  
Model  
Nominal Voltage  
MMY-AP3414*  
MMY-AP3614*  
MMY-AP3814*  
MMY-AP4014*  
MMY-AP4214*  
MMY-AP4414*  
MMY-AP4614*  
MMY-AP4814*  
82.5  
85.5  
90.5  
93.5  
98.2  
101.5  
106.2  
109.5  
100  
100  
100  
125  
125  
125  
125  
125  
◆Design of communication wiring  
Summary of communication wiring  
3N~ 50Hz  
380-400-415V  
Header outdoor  
Follower outdoor  
High efficiency model  
MCA  
(A)  
MOCP  
(A)  
Model  
Phase and frequency  
Nominal Voltage  
MMY-AP1624*  
3N~ 50Hz  
380-400-415V  
46.9  
63  
U1 U2 U3 U4 U5 U6  
U1 U2 U3 U4 U5 U6  
MMY-AP2424*  
MMY-AP2624*  
MMY-AP2824*  
MMY-AP3024*  
70.4  
72.4  
74.5  
76.5  
80  
80  
100  
100  
Central control  
controller  
3N~ 50Hz  
380-400-415V  
U1 U2  
U3 U4  
Communication wiring between outdoor units (Shield wire)  
MMY-AP3224*  
MMY-AP3424*  
MMY-AP3624*  
MMY-AP3824*  
MMY-AP4024*  
MMY-AP4224*  
MMY-AP4424*  
MMY-AP4624*  
MMY-AP4824*  
93.8  
95.9  
97.9  
100.0  
102.0  
105.0  
108.0  
111.0  
114.0  
125  
125  
125  
125  
125  
125  
125  
125  
125  
Communication wiring between indoor and outdoor units  
(Shield wire)  
Communication wiring between indoor units (Shield wire)  
3N~ 50Hz  
380-400-415V  
U1 U2  
A
A
B
B
U1 U2  
A
B
U1 U2  
A
B
U1 U2  
A
B
Indoor unit  
Indoor unit  
Indoor unit  
Indoor unit  
A
B
A
B
Remote controller  
Remote controller  
Remote controller  
(Group control)  
L1L2L3 N  
L1L2L3 N  
L1L2L3 N  
L1L2L3 N  
• Communication wiring and central control wiring use 2-core non-polarity wires.  
Use 2-core shield wires to prevent noise trouble.  
In this case, for the system grounding, close (connect) the end of shield wires, and isolate the end of terminal.  
Perform the ground of wires at one side only for the header outdoor unit.  
• Use 2-core non-polarity wire for remote controller. (A, B terminals)  
Use 2-core non-polarity wire for wiring of group control. (A, B terminals)  
Circuit breaker  
(Earth leakage breaker)  
Main switch  
(Fuse)  
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Be sure to keep the rule of below tables about size and length of communication wiring.  
◆Group control through a Remote Controller  
Group control of multiple indoor units (8 units) through a single remote controller switch  
Central  
control  
controller  
Indoor unit  
Super modular multi system  
U1 U2  
U3 U4  
No.1  
No.2  
A B  
No.8  
A B  
No.4  
A B  
No.7  
A B  
No.3  
Table-1  
L4  
A B  
A B  
Header  
Follower  
unit  
Header  
unit  
Follower  
unit  
Header  
unit  
Follower Follower  
unit  
unit  
U3 U4  
unit  
(A.B)  
Remote controller  
U3 U4  
U3 U4  
U3 U4  
U3 U4  
U3 U4  
U3 U4  
Outdoor unit  
U1 U2 U5 U6  
U1 U2 U5 U6  
U1 U2 U5 U6  
U1 U2 U5 U6  
U1 U2 U5 U6  
U1 U2 U5 U6  
U1 U2 U5 U6  
„Connection of power wires and communication wires  
L5  
Table-1  
L1  
Table-2  
Remove knockouts on the piping/wiring panel on the front of the unit and the panel on the bottom to get the power and  
communication wires through the holes.  
L2  
L3  
U1 U2  
U1 U2  
U1 U2  
U1 U2  
U1 U2  
U1 U2  
A
U1 U2  
U1 U2  
A
Indoor unit  
A
B
A
B
A
B
A
B
A
B
B
A
B
B
Table-3  
L7  
L6  
Remote controller  
Remote controller  
Remote controller  
Piping/wiring panel  
Table-1  
Communication wiring between indoor and outdoor units (L1, L2, L3), Central control wiring  
(L4)  
Knockout for the  
communication wire  
Knockout for the power  
Wiring  
2-core, non-polarity  
supply wire  
Knockout for the power  
wire  
Type  
Shield wire  
Size/Length  
1.25 mm2: Up to 1000 m/2.0 mm2: Up to 2000 m (*1)  
NOTE  
Be sure to separate the power wire and communication wires.  
(*1): Total length of Communication wiring length for all refrigerant circuits (L1 + L2 + L3 + L4)  
Table-2  
Communication wiring between outdoor units (L5)  
Wiring  
2-core, non-polarity  
Type  
Shield wire  
Size/Length  
1.25 mm2 to 2.0 mm2/Up to 100 m (L5)  
Table-3  
Remote controller wiring (L6, L7)  
Wire  
Size  
2-core, non-polarity  
0.5 mm2 to 2.0 mm2  
• Up to 500 m (L6 + L7)  
Length  
• Up 400 m in case of wireless remote controller in group control.  
• Up to 200 m total length of communication wiring between indoor units (L6)  
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Screw size and tightening torque  
Tightening torque  
(N•m)  
Screw size  
Power supply terminal  
Earth screw  
M6  
M8  
2.5 to 3.0  
5.5 to 6.6  
Power supply terminal  
block  
◆Communication wire connection  
Cord clamps  
Get the communication wire through the cutout on the side of the electric parts box and connect it to the communication wire  
terminals, then fix it with the communication cable clamp.  
Communication  
terminal block  
Power supply wires  
Cord clamp  
Earth screw  
U1 U2 U3 U4 U5 U6  
Communication  
wires  
TO  
TO  
TO  
OUTDOOR  
UNIT  
CENTRAL  
CONTROL  
LER  
INDOOR  
UNIT  
◆Power supply wire connection  
1. Insert the power supply wire through the cutout on the side of the electric parts box and connect the power supply  
wire to the power supply terminal block and the earth line to the earth screw. After that, fix the power supply wire  
with the 2 cord clamps.  
U5, U6: Communication wiring between outdoor units  
U3, U4: Central control device  
2. Be sure to use round-type crimping terminals for power connection.  
U1, U2: Communication wiring between Indoor/Outdoor unit  
Also, apply insulating sleeves to the crimping parts. Use a driver of appropriate size to fix the terminal screws.  
Screw size and tightening torque  
Tightening torque  
(N•m)  
Screw size  
M3.5  
L1 L2 L3  
N
Communication wire terminal  
0.80 to 0.96  
L1 L2 L3  
N
10mm or more  
Power supply wire  
Earth line  
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„Regulation of high frequency wave  
9 ADDRESS SETTING  
On this unit, it is required to set the addresses of the indoor units before starting air conditioning.  
Set the addresses following the steps below.  
This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal to Ssc (*1)  
at the interface point between the user’s supply and the public system. It is the responsibility of the installer or user of the  
equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected  
only to a supply with a short-circuit power Ssc greater than or equal to Ssc (*1)  
CAUTION  
• Be sure to complete the electric wiring before setting the addresses.  
• If you turn on the outdoor unit before turning on the indoor units, the CODE No. [E19] is indicated on the 7-  
segment display on the interface P.C. board of the outdoor unit until the indoor units are turned on. This is not a  
malfunction.  
Furthermore, when similar equipment or other equipment which may cause harmonic current emissions are to be  
connected to the same interface point with this equipment, to reduce the risk of possible problems which may be caused  
from addition of those harmonic current emissions, it is recommended to make sure that the short-circuit power Ssc at the  
interface point is greater than the sum of the minimum Ssc required by all the equipment which will be connected to the  
interface point.  
• It may take up to ten minutes (normally about five minutes) to address one refrigerant line automatically.  
• Settings on the outdoor unit are required for automatic addressing. (Address setting is not started simply by  
turning on the power.)  
• Running the unit is not required for address setting.  
• The addresses can be set manually.  
Ssc (*1)  
Model  
Ssc (kVA)  
1004  
MMY-MAP0804HT8(Z)(ZG)-E  
MMY-MAP0804T8(Z)(ZG)-E  
Automatic addressing:  
Manual addressing:  
setting addresses using SW15 on the interface P.C. board on the header outdoor unit  
setting addresses on the wired remote controller.  
* When setting an address manually, the wired remote controller must temporarily be  
paired with an indoor unit one-to-one. (when the system is organized for group  
operation and no Remote controller)  
MMY-MAP1004HT8(Z)(ZG)-E  
MMY-MAP1004T8(Z)(ZG)-E  
1290  
1560  
1692  
1942  
MMY-MAP1204HT8(Z)(ZG)-E  
MMY-MAP1204T8(Z)(ZG)-E  
MMY-MAP1404HT8(Z)(ZG)-E  
MMY-MAP1404T8(Z)(ZG)-E  
MMY-MAP1604HT8(Z)(ZG)-E  
MMY-MAP1604T8(Z)(ZG)-E  
REQUIREMENT  
Access  
door cover  
• High voltage parts exist in the electrical control box.  
If you set addresses on an outdoor unit, operate the  
unit through the access door shown on the illustration  
on the right to avoid electric shock. Do not remove the  
cover of electrical control box.  
Cover of the electrical  
control box  
Fixing screw for the  
access door cover  
* After finishing operations, close the access door cover  
and fix it with the screw.  
„Automatic address setting  
No central control:  
Central control of 2 or more refrigerant lines:  
go to Address setting procedure 1  
go to Address setting procedure 2  
When controlling a single refrigerant line  
When controlling 2 or more refrigerant lines  
centrally  
(Example)  
centrally  
Address setting  
procedure  
To procedure 1  
To procedure 2  
Central  
remote  
Outdoor  
Indoor  
Central  
remote  
Outdoor  
Outdoor  
Indoor  
Central  
remote  
Outdoor  
controller  
controller  
controller  
System wiring  
diagram  
Indoor  
Indoor  
Indoor  
Indoor  
Indoor  
Indoor  
Remote  
Remote  
Remote  
controller  
Remote  
Remote  
Remote  
controller  
controller controller  
controller controller  
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◆Address setting procedure 1  
◆Address setting procedure 2  
1
2
Turn on indoor units first, and then turn on outdoor units.  
1
Set a system address for each system using SW 13 and 14 on the interface P.C. board on the  
header outdoor unit of each system.  
(Factory default: Address 1)  
About one minute after turning the power on, confirm that the 7-segment display on the interface  
U. 1. L08 (U. 1. flash)  
P.C. board of the header outdoor unit indicates  
.
NOTE  
3
4
Press SW 15 to start the automatic address setting.  
(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)  
Be sure to set a unique address on each system. Do not use a same address as another system (refrigerant line) or a custom  
side.  
Auto 1 → Auto 2 → Auto 3  
The 7-segment display indicates  
.
U. 1. - - - (U. 1. flash)  
After the indication,  
When the flashing stops and  
complete.  
starts flashing on the display.  
Interface P.C. board on the header outdoor unit  
U. 1. - - - (U. 1. light)  
remain lit on the display, the setting is  
SW06  
SW07  
SW09  
SW10  
Interface P.C. board on the header outdoor unit  
1 2 3 4  
SW11  
1 2 3 4  
SW12  
1 2 3 4  
SW13  
1 2 3 4  
SW14  
SW05  
SW15  
SW04  
3
D600 D601 D602 D603  
D604  
1 2 3 4  
1 2 3 4  
1 2 3 4  
1 2 3 4  
2,4  
SW02  
SW03  
SW01  
Switch settings for a line (system) address on the interface P.C. board on the outdoor unit  
({: switch ON, ✕: switch OFF)  
SW13  
SW14  
Line (system) address  
1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
3
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
4
1
2
3
4
REQUIREMENT  
1
2
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
{
{
{
{
{
{
{
{
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
✕
✕
{
{
✕
✕
{
{
✕
✕
{
{
✕
✕
{
{
✕
✕
{
{
✕
✕
{
{
✕
✕
✕
✕
✕
{
{
{
{
✕
✕
✕
✕
{
{
{
{
✕
✕
✕
✕
{
{
{
{
✕
✕
✕
✕
✕
✕
✕
✕
✕
{
{
{
{
{
{
{
{
✕
✕
✕
✕
✕
✕
✕
✕
{
• When 2 or more refrigerant lines are controlled as a group, be sure to turn on all the indoor units in the group  
before setting addresses.  
• If you set the unit addresses of each line separately, each line’s header indoor unit is set separately. In that case,  
the CODE No. “L03” (Indoor header unit overlap) is indicated as running starts. Change the group address to  
make one unit the header unit using wired remote controller.  
3
4
5
6
7
(Example)  
Controlling 2 or more refrigerant lines as a group  
8
9
Outdoor  
Indoor  
Outdoor  
Indoor  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
System wiring  
diagram  
Indoor  
Indoor  
(Group control)  
Remote  
controller  
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9
Connect the relay connectors between the [U1, U2] and [U3, U4] terminals of the header outdoor  
unit of each refrigerant line.  
SW13  
SW14  
Line (system) address  
1
–
–
–
2
–
–
–
3
–
–
–
4
1
2
3
4
26  
27  
28  
{
{
{
{
✕
{
✕
{
{
✕
✕
✕
{
{
{
“–”: not used for system address setting (Do not change their positions.)  
2
Be sure to disconnect the relay connectors between the [U1U2] and [U3U4] terminals on all the  
header outdoor units that will be connected to the central control. (Factory default: disconnected)  
9
U1 U2 U3 U4 U5 U6  
TO  
TO  
INDOOR  
UNIT  
TO  
OUTDOOR  
UNIT  
CENTRAL  
CONTROL  
LER  
10 Set the central control address.  
(For the setting of the central control address, refer to the installation manuals of the central control devices.)  
2
Header unit interface P.C. board  
U1 U2 U3 U4 U5 U6  
TO  
TO  
INDOOR  
UNIT  
TO  
OUTDOOR  
UNIT  
CENTRAL  
CONTROL  
LER  
SW15  
SW04 SW05  
3
4
Turn on indoor units first, and then turn on outdoor units.  
7-segment  
display  
D600 D601 D602 D603 D604  
SW01 SW02 SW03  
About 1 minute after turning the power on, confirm that the 7-segment display on the interface  
U. 1. L08 (U. 1. flash)  
P.C. board of the header outdoor unit indicates  
.
5
6
Press SW 15 to start the automatic address setting.  
(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)  
SW13  
SW14  
Auto 1 → Auto 2 → Auto 3  
The 7-segment display indicates  
.
U. 1. - - - (U. 1. flash)  
After the indication,  
When the flashing stops and  
complete.  
starts flashing on the display.  
U. 1. - - - (U. 1. light)  
, remains lit on the display, the setting is  
7
8
Repeat steps 4 to 6 for other refrigerant lines.  
SW30  
1
2
After completing address setting of all systems, turn off dip switch 2 of SW30 on the interface P.C.  
boards of all the header outdoor units connected to the same central control, except the unit that  
has the lowest address.  
(For unifying the termination of the wiring for the central control of indoor and outdoor units)  
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*The items in bold font must be set manually.  
Switch setting (setting example when  
controlling 2 or more refrigerant lines  
centrally)  
CAUTION  
Relay connector connection  
Outdoor units (setting manually)  
Never connect relay connectors between the [U1, U2] and [U3, U4] terminals before completing address setting of all  
the refrigerant lines. Otherwise, the addresses cannot be set correctly.  
Outdoor unit’s interface  
Header unit  
Follower unit  
Header unit  
2
Follower unit  
Header unit  
3
Factory default  
P.C. board  
SW13, 14  
(No setting  
required)  
(No setting  
required)  
1
1
(Line (system) address)  
Dip switch 2 of SW30  
(Terminator of indoor/  
outdoor communication  
line and central control  
line)  
„Manual address setting using the remote controller  
Procedure when setting indoor units’ addresses first under the condition that indoor wiring has been completed and  
outdoor wiring has not been started (manual setting using the remote controller)  
Set to OFF  
after setting  
addresses.  
Set to OFF  
after setting  
addresses.  
(No setting  
required)  
(No setting  
required)  
ON  
ON  
Connect after  
setting  
addresses.  
Connect after  
setting  
addresses.  
Connect after  
setting  
addresses.  
Relay connector  
Open  
Open  
Open  
▼ Wiring example of 2 refrigerant lines  
Refrigerant line 1  
Refrigerant line 2  
Outdoor  
unit  
Outdoor  
unit  
Central  
control  
controller  
Follower unit  
U3 U4  
Follower unit  
Header unit  
Header unit  
Header unit  
U3 U4  
U3 U4  
U3 U4  
U3 U4  
Indoor unit 1  
Indoor unit 2  
Indoor unit 1  
Indoor unit 2  
Indoor unit 3  
U1 U2 U5 U6  
U1 U2 U5 U6  
U1 U2 U5 U6  
U1 U2 U5 U6  
U1 U2 U5 U6  
Remote  
controller  
Relay  
connector  
Relay  
connector  
Relay  
connector  
Line (system) address  
Indoor unit address  
1
1
1
2
1
3
2
2
1
2
2
2
1
2
2
U1 U2  
U1 U2  
U1 U2  
U1 U2  
U1 U2  
Group address  
Header unit  
Follower unit  
Follower unit  
Follower unit  
Follower unit  
A
B
A
B
A
B
A
B
A
B
In the example above, disconnect the remote controller connections between the indoor units and connect  
a wired remote controller to the target unit directly before address setting.  
Remote  
controller  
Remote  
controller  
Remote  
controller  
Remote  
controller  
Individual  
Group  
CODE No.  
Indoor units  
(automatic setting)  
SET DATA SETTING  
UNIT No.  
R.C.  
No.  
SET DATA  
CODE No.  
Line (system) address  
Indoor unit address  
Group address  
1
1
0
1
2
0
2
1
1
2
3
1
0
TEMP.  
ON / OFF  
2, 5, 8  
4, 7, 10  
11  
2
2
3, 6, 9  
TIMER SET  
TIME  
FILTER  
RESET TEST  
SET CL  
1
Pair the indoor unit to set and the remote controller  
one-to-one.  
Turn on the power.  
SET  
CL  
TEST  
1
Push and hold the  
,
, and  
buttons at  
the same time for more than 4 seconds.  
LCD starts flashing.  
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<Line (system) address>  
To find an indoor unit’s position from its  
address  
„Confirming the indoor unit  
addresses and the position of  
an indoor unit using the  
remote controller  
NOTE  
2
3
Push the TEMP.  
repeatedly to set the CODE No. to  
/
buttons  
1. Do not use address numbers 29 or 30 when setting  
system addresses using the remote controller.  
These 2 address numbers cannot be used on  
outdoor units and the CODE No. [E04] (Indoor/  
outdoor communication error) will appear if they are  
mistakenly used.  
2. If you set addresses to indoor units in 2 or more  
refrigerate lines manually using the remote  
controller and will control them centrally, set the  
header outdoor unit of each line as below.  
• Set a system address for the header outdoor unit  
of each line with SW13 and 14 of their interface  
P.C. boards.  
• Turn off dip switch 2 of SW30 on the interface P.C.  
boards of all the header outdoor units connected  
to the same central control, except the unit that  
has the lowest address. (For unifying the  
termination of the wiring for the central control of  
indoor and outdoor units)  
• Connect the relay connectors between the [U1,  
U2] and [U3, U4] terminals on the header outdoor  
unit of each refrigerate line.  
.
▼ When checking unit numbers controlled as a  
group  
Push the TIME buttons repeatedly to  
set a system address.  
/
(Match the address with the address on the  
interface P.C. board of the header outdoor unit in  
the same refrigerant line.)  
CODE No.  
SET DATA  
SETTING  
UNIT No.  
◆Confirming the numbers and  
R.C.  
No.  
positions of indoor units  
SET  
4
Push  
button.  
TEMP.  
ON / OFF  
(It is OK if the display turns on.)  
To see the indoor unit address of an  
indoor unit which you know the position of  
TIMER SET  
TIME  
<Indoor unit address>  
3
FILTER  
RESET TEST  
▼ When the unit is individual (the indoor unit is  
paired with a wired remote controller one-to-  
one), or it is a group-controlled one.  
1
2
Stop  
SET CL  
5
6
7
Push the TEMP.  
repeatedly to set the CODE No. to  
/
buttons  
.
Push the TIME buttons repeatedly to  
set an indoor unit address.  
/
1
SET  
CODE No.  
Push the  
button.  
(Execute it while the units are stopped.)  
UNIT No.  
(It is OK if the display turns on.)  
The indoor unit numbers in a group are indicated one after  
another. The fan and louvers of the indicated units are  
activated.  
<Group address>  
TEMP.  
ON / OFF  
• After finishing all the settings above, set the  
address of the central control devices. (For the  
setting of the central control address, refer to the  
installation manuals of the central control  
devices.)  
1
VENT  
TEST  
8
9
Push the TEMP.  
repeatedly to set the CODE No. to  
/
buttons  
Starts  
running  
TIMER SET  
TIME  
1
Push and hold the  
and  
buttons at  
.
the same time for more than 4 seconds.  
appears on UNIT No. on the LCD display.  
• The fans and louvers of all the indoor units in the  
group are activated.  
FILTER  
RESET TEST  
SET CL  
•
Push the TIME  
set a group address. If the indoor unit is  
individual, set the address to ; header  
/
buttons repeatedly to  
2
unit,  
; follower unit,  
.
2
Push the  
button (left side of the  
Individual  
Header unit  
Follower unit  
: 0000  
: 0001  
: 0002  
button). Each time you push the button, the  
indoor unit numbers are indicated one after  
another.  
• The first-indicated unit number is the address of  
the header unit.  
(Execute it while the units are running.)  
In case of group  
control  
}
ON / OFF  
1
2
Push the  
button if the units stop.  
button (left side of the  
SET  
10 Push the  
button.  
Push the  
button).  
A unit numbers  
(It is OK if the display turns on.)  
• Only the fan and louvers of the indicated indoor  
unit are activated.  
TEST  
11 Push the  
button.  
is indicated on the LCD (it will  
The address setting is complete.  
TEST  
disappear after a few seconds). The indicated  
number shows the system address and indoor unit  
address of the unit.  
3
Push the  
button to finish the procedure.  
All the indoor units in the group stop.  
(
SETTING  
flashes. You can control the unit after  
SETTING  
has disappeared.)  
When 2 or more indoor units are connected to the  
remote controller (group-controlled units), a  
number of other connected units appears each  
▼ To check all the indoor unit addresses using  
an arbitrary wired remote controller.  
(When communication wirings of 2 or more  
time you push the  
button).  
button (left side of the  
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TEST  
refrigerant lines are interconnected for central  
control)  
6
Push the  
button to finish the procedure.  
6
Push the  
button (left side of the  
button) repeatedly to select another indoor  
UNIT No. to change.  
▼ To change all the indoor unit addresses using  
an arbitrary wired remote controller.  
(The method is available when the addresses  
have already been set automatically.)  
„Changing the indoor unit  
address using a remote  
controller  
Repeat steps 4 to 6 to change the indoor unit  
addresses so as to make each of them unique.  
CODE No.  
SET DATA SETTING  
UNIT No.  
(When communication wirings of 2 or more  
refrigerant lines are interconnected for central  
control)  
R.C.  
No.  
7
8
Push the  
button (left side of the  
button) to check the changed addresses.  
TEMP.  
ON / OFF  
To change an indoor unit address using a  
wired remote controller.  
NOTE  
If the addresses have been changed  
correctly, push the  
procedure.  
TIMER SET  
TEST  
button to finish the  
You can change the addresses of indoor units in each  
refrigerant line using an arbitrary wired remote controller.  
TIME  
1
FILTER  
RESET TEST  
▼ The method to change the address of an  
individual indoor unit (the indoor unit is paired  
with a wired remote controller one-to-one), or  
an indoor unit in a group.  
(The method is available when the addresses  
have already been set automatically.)  
SET CL  
2
* Enter the address check/change mode and change  
the addresses.  
6
3
4
5
CODE No.  
SET DATA SETTING  
UNIT No.  
(Execute it while the units are stopped.)  
R.C.  
No.  
CODE No.  
You can check indoor unit addresses and positions of the  
indoor units in a single refrigerant line.  
SET DATA SETTING  
UNIT No.  
TEMP.  
ON / OFF  
R.C.  
No.  
When an outdoor unit is selected, the indoor unit numbers of  
the refrigerant line of the selected unit are indicated one after  
another and the fan and louvers of the indicated indoor units  
are activated.  
TIMER SET  
TIME  
TEMP.  
ON / OFF  
3
5
FILTER  
RESET TEST  
1
3
TIMER SET  
TIME  
SET CL  
4
2
TEST  
1
Push and hold the TIME  
and  
buttons  
FILTER  
RESET TEST  
SET CL  
at the same time for more than 4 seconds.  
At first, the line 1 and CODE No.  
Cancels the line selection  
8
Finish  
(Address Change) are indicated on the LCD  
display. (Select an outdoor unit.)  
If no number appears on UNIT No., no outdoor unit exists on  
CL  
the line. Push  
step 2.  
button and select another line following  
1
2, 6, 7  
2
3
Push the  
(left side of the button) and  
SWING/FIX  
(Execute it while the units are stopped.)  
buttons repeatedly to select a system  
address.  
(Execute it while the units are stopped.)  
SET  
CL  
TEST  
SET  
1
Push and hold the  
,
, and  
buttons at  
Push the  
address selection.  
button to confirm the system  
1
Push and hold the TIME  
/
buttons at  
the same time for more than 4 seconds.  
(If 2 or more indoor units are controlled in a group,  
the first indicated UNIT No. is that of the head  
unit.)  
the same time for more than 4 seconds.  
At first, the line 1 and CODE No.  
(Address Change) are indicated on the LCD  
display.  
• The address of an indoor unit connected to the  
selected refrigerant line is indicated on the LCD  
display and its fan and louvers are activated.  
2
Push the  
button (left side of the  
4
Push the  
button (left side of the  
2
Push  
(left side of the button) and  
buttons repeatedly to select a system  
button) repeatedly to select an indoor unit  
number to change if 2 or more units are  
controlled in a group. (The fan and louvers  
of the selected indoor unit are activated.)  
(The fan of the selected indoor unit is turned on.)  
SWING/FIX  
button). Each time you push the button, the  
indoor unit numbers of the selected  
refrigerant line are indicated one after  
another.  
• Only the fan and louvers of the indicated indoor  
unit are activated.  
address.  
3
4
Push the TEMP.  
repeatedly to select  
/
buttons  
for CODE No..  
◆To select another system address  
Push the TIME  
change the value indicated in the SET DATA  
section to that you want.  
/
buttons repeatedly to  
CL  
5
Push the  
CL button to return to step 2.  
• After returning to step 2, select another system  
address and check the indoor unit addresses of  
the line.  
SET  
5
Push the  
button.  
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SET  
3
Push the  
button.  
„Resetting the address  
• The address of one of the indoor units  
connected to the selected refrigerant line is  
indicated on the LCD display and the fan and  
louvers of the unit are activated.  
(Resetting to the factory  
Central control  
controller  
default (address undecided))  
Method 1  
Clearing each address separately using a wired remote  
controller.  
U1 U2  
U3 U4  
At first, the current indoor unit address is  
displayed in SET DATA.  
Header  
unit  
Header  
unit  
Header  
unit  
Follower unit  
Follower unit  
(No system address is indicated.)  
U3 U4  
U3 U4  
U3 U4  
U3 U4  
U3 U4  
Set the system address, indoor unit address and group  
address to “0099” using a wired remote controller.  
(For the setting procedure, refer to the address setting  
procedures using the wired remote controller on the previous  
pages.)  
CODE No.  
U1 U2  
U5 U6  
U1 U2  
U5 U6  
U1 U2  
U5 U6  
U1 U2  
U5 U6  
U1 U2  
U5 U6  
SET DATA SETTING  
UNIT No.  
R.C.  
No.  
Method 2  
TEMP.  
ON / OFF  
Clearing all the indoor unit addresses on a refrigerate line at  
once from the outdoor unit.  
TIMER SET  
TIME  
U1 U2  
U1 U2  
U1 U2  
U1 U2  
U1 U2  
1
Turn off the refrigerant line to reset to the  
factory default and set the header outdoor  
unit of the line as below.  
4
A
B
A
B
A
B
A
B
A
B
FILTER  
RESET TEST  
SET CL  
6
8
Remote  
controller  
Remote  
controller  
Remote  
controller  
Remote  
controller  
1) Disconnect the relay connectors between the  
[U1, U2] and [U3, U4] terminals.  
Finish  
(Leave them as they are if they have already  
been disconnected.)  
Press to finish  
setting.  
5, 7  
Indoor units to have their addresses initialized  
2) Turn on dip switch 2 of SW30 on the interface  
P.C. board of the header outdoor unit if the  
switch is OFF.  
4
Push the TIME  
change the value of the indoor unit address  
in SET DATA.  
Change the value in SET DATA to that of a  
new address.  
/
buttons repeatedly to  
2
Turn on the indoor and outdoor units of the refrigerant line for which you want to initialize the  
addresses. About one minute after turning on the power, confirm that the 7-segment display on  
the header outdoor unit indicates “U.1. - - -” and operate the interface P.C. board on the header  
outdoor unit of the refrigerant line as follows.  
(Leave it as it is if it has already been set to  
ON.)  
SW01 SW02 SW03  
SW04  
Clearable addresses  
SET  
5
6
Push the  
button to confirm the new  
Confirm that the 7-segment display indicates  
“A.d.buS” and turn SW04 ON for more than five  
seconds.  
address on SET DATA.  
2
2
1
2
2
2
System/indoor unit/group address  
Push the  
button (left side of the  
Confirm that the 7-segment display indicates  
“A.d.nEt” and turn SW04 ON for more than five  
seconds.  
button) repeatedly to select another address  
to change. Each time you push the button,  
the indoor unit numbers in a refrigerant line  
are indicated one after another. Only the fan  
and louvers of the selected indoor unit are  
activated.  
Central control address  
3
4
Confirm that the 7-segment display indicates “A.d. c.L.” and set SW01, SW02 and SW03 to 1, 1, 1  
respectively.  
After a time “U.1.L08” appears on the 7-segment display if the address clearing has been  
completed successfully.  
Repeat steps 4 to 6 to change the indoor unit  
addresses so as to make each of them unique.  
If the 7-segment display indicates “A.d. n.G.”, the outdoor unit may still connected with other  
refrigerant lines. Check the connection of the relay connectors between [U1, U2] and [U3, U4].  
SET  
7
8
Push the  
button.  
NOTE  
Take care to carry out the procedure above correctly; otherwise, addresses in other refrigerate lines may also be cleared.  
(All the segments on the LCD display light up.)  
TEST  
Push the  
button to finish the procedure.  
5
Set the addresses again after finishing the clearance.  
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◆When executing a test run using  
the interface P.C. board on the  
outdoor unit  
You can execute a test run by operating switches on the  
interface P.C. board of the header outdoor unit.  
“Individual trial”, which tests each indoor unit separately, and  
“corrective trial”, which tests all the indoor units connected,  
are available.  
NOTE  
10TEST RUN  
„Before test run  
Confirm that the valve of the refrigerate pipe of the outdoor  
unit is OPEN.  
• Before turning on the power, confirm that the  
resistance between the terminal block of power  
supply and the earth is more than 1MΩ using a 500V  
megohmmeter.  
TEMP.  
ON / OFF  
2, 4  
3
• The running mode follows the mode setting on the  
remote controller of the target indoor unit.  
• You cannot change the temperature setting during  
the test run.  
• Errors are detected as usual.  
• The unit does not perform test run for 3 minutes after  
turning the power on or stopping running.  
TIMER SET  
TIME  
FILTER  
RESET TEST  
SET CL  
1, 5  
<Individual test operation>  
▼ Finishing operation  
Do not run the unit if it is less than 1MΩ.  
TEST  
1
Push and hold the  
button for more than 4  
▼ Starting operation  
1
Set the rotary switches on the interface P.C.  
board of the header unit back: SW01 to [1],  
SW02 to [1] and SW03 to [1].  
seconds. TEST appears on the LCD display  
and the unit enters the trial mode.  
(TEST is indicated on the LCD display during  
the test run.)  
CAUTION  
1
Set the running mode to “COOL” or “HEAT”  
on the remote controller of the indoor unit to  
be tested.  
•
Turn on the power and turn on the case heater of the  
compressor.  
7-segment display  
(The unit will run in the current mode unless  
you set the mode otherwise.)  
To save the compressor when it is activated, leave the  
power on for more than 12 hours.  
[A]  
[U1]  
[B]  
TEST  
[
]
7-segment display  
[A]  
[B]  
„Methods of test run  
[U1]  
[
]
ON / OFF  
2
3
Push the  
Push the  
button.  
MODE  
button to switch the running  
◆When executing a test run using a  
mode to COOL or HEAT.  
remote controller  
2
Set the rotary switches on the interface P.C.  
board of the header outdoor unit: SW01 to  
[16], SW02 and SW03 to the address of the  
indoor unit to be tested.  
NOTE  
Operate the system normally to check the running condition  
using the wired remote controller. Follow the instructions in  
the supplied owner’s manual when operating the unit.  
If you use a wireless remote controller for operations, follow  
the instructions in the installation manual supplied with the  
indoor unit.  
To execute a test run forcibly under the condition that the  
thermostat automatically turns the unit off due to the indoor  
temperature, follow the procedure below.  
• Do not run the unit in any mode other than COOL or  
HEAT.  
• You cannot change the temperature setting during  
the test run.  
• Errors are detected as usual.  
SW02  
SW03  
Indoor unit address  
1 to 16  
1 to 16  
1 to 16  
1 to 16  
1
2
3
4
1 to 16 Set number of SW02  
17 to 32 Set number of SW02 + 16  
33 to 48 Set number of SW02 + 32  
49 to 64 Set number of SW02 + 48  
The forcible test run will automatically stop after 60 minutes  
to prevent continuous forcible running and return to normal  
running.  
TEST  
7-segment display  
[B]  
CAUTION  
[A]  
[
]
[
]
ON / OFF  
4
5
Push the  
button to stop running  
Do not use forcible running except for a test run as it  
overloads the unit.  
ꢀ
Address display of the  
corresponding indoor unit  
after finishing the trial run.  
The indication on the LCD display returns to  
the status of procedure 1.  
3
Push and hold SW04 for more than 10  
seconds.  
TEST  
Push the  
button to exit the trial mode.  
(TEST disappears on the LCD display and  
the status changes to normal stopped  
mode.)  
7-segment display  
[A]  
[B]  
[
]
[
]
ꢀ
ꢀ
Address display of the  
[FF] is displayed for 5  
corresponding indoor unit seconds.  
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<Corrective trial>  
Interface PC board  
▼ Start operation  
SW04 SW05 SW15  
Push switch  
Push switch  
1
Set the rotary switches on the interface P.C. board of the header outdoor unit as below.  
When in “COOL” mode: SW01=[2], SW02=[5], SW03=[1].  
When in “HEAT” mode: SW01=[2], SW02=[6], SW03=[1].  
D600 D601 D602 D603 D604  
7-segment  
display [A]  
7-segment  
display [B]  
SW01 SW02 SW03  
Rotary switches  
7-segment display  
[A]  
[C  
[H  
[B]  
]
]
[
[
]
]
2
Push and hold SW04 for more than 2 seconds.  
NOTE  
• You cannot change the temperature setting during the test run.  
• Errors are detected as usual.  
• The unit does not perform test run for 3 minutes after turning the power on or stopping running.  
7-segment display  
[A]  
[B]  
[C  
[H  
]
]
[
[
-
C
H
]
]
-
▼ Stop operation  
1
Set the rotary switches on the interface P.C. board of the header unit back:  
SW01 to [1], SW02 to [1] and SW03 to [1].  
7-segment display  
[A]  
[U1]  
[B]  
[
]
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Check code  
11TROUBLESHOOTING  
Indication on 7-segment display on the outdoor unit  
Auxiliary code  
Check code name  
In addition to the CODE No. on the remote controller of an indoor unit, you can diagnose failure type of an outdoor unit by  
checking the 7-segment display on the interface P.C. board.  
Use the function for various checks.  
Outdoor temp. sensor miswiring  
Outdoor pressure sensor miswiring (TE1, TL)  
F15  
—
—
Set every dip switch to OFF after checking.  
Outdoor temp. sensor miswiring  
Outdoor pressure sensor miswiring (Pd, Ps)  
F16  
7-Segment display and check code  
F22  
F23  
F24  
F31  
—
—
—
—
TD3 sensor error  
Ps sensor error  
Rotary switch setting value  
D600 D601 D602 D603 D604  
Pd sensor error  
Indication  
LED  
SW01  
SW02  
SW03  
Outdoor EEPROM error  
A
B
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
H01  
H02  
H03  
Compressor breaking down  
Compressor error (Locked)  
Current detection circuit error  
Outdoor unit number  
(U1 to U4)  
A
B
1
1
1
Outdoor unit check code  
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
Check code display*  
* If a check code has an auxiliary code, the display indicates the check code for three seconds and the auxiliary  
code for one second alternately.  
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
Check code (indicated on the 7-segment display on the outdoor unit)  
H05  
H06  
H07  
—
—
—
TD1 sensor miswiring  
Indicated when SW01 = [1], SW02 = [1], and SW03 = [1].  
Low pressure proctive operation  
Oil level down detection  
Check code  
Indication on 7-segment display on the outdoor unit  
Auxiliary code  
Check code name  
01: TK1 sensor error  
02: TK2 sensor error  
03: TK3 sensor error  
04: TK4 sensor error  
05: TK5 sensor error  
E06  
Number of indoor units which received normally  
Decrease of number of indoor units  
Indoor/outdoor communication circuit error  
Duplication of indoor addresses.  
H08  
H15  
H16  
Temperature sensor error for oil level  
TD2 sensor miswiring  
E07  
E08  
—
Duplicated indoor addresses  
—
01: Communication between indoor and outdoor units  
02: Communication between outdoor units  
E12  
E15  
E16  
Automatic addressing start error  
01: TK1 oil circuit error  
02: TK2 oil circuit error  
03: TK3 oil circuit error  
04: TK4 oil circuit error  
05: TK5 oil circuit error  
—
No indoor unit during automatic addressing  
Capacity over / number of connected indoor units  
Oil level detector circuit error  
00: Capacity over  
01~: Number of connected units  
H25  
L04  
L06  
L08  
L10  
L17  
L28  
L29  
L30  
L31  
P03  
—
—
TD3 sensor miswiring  
00: Header is nothing  
02: 2 or more header units  
E19  
E20  
Number of header outdoor unit error  
Outdoor system address duplication  
Duplication of indoor units with priority  
Indoor unit group/address unset  
Outdoor unit capacity unset.  
Mismatch of the outdoor unit model  
Outdoor connected quantity over  
IPDU quantity error  
01: Other line indoor connected  
02: Other line indoor connected  
Number of prior indoor units  
Other lines connected during automatic addressing  
—
—
—
—
E23  
E25  
E26  
E28  
E31  
F04  
F05  
—
Sending error between outdoor units communication  
Duplicated follower outdoor address set up  
Decrease of connected outdoor units  
Follower outdoor unit error  
—
Number of outdoor units which received normally  
Detected outdoor  
(*1)  
IPDU number information  
(*1)  
IPDU quantity information  
IPDU communication error  
Detected indoor unit address  
External interlock of indoor unit  
Other compressor errors  
—
—
TD1 sensor error  
—
—
TD2 sensor error  
Discharge temperature TD1 error  
01: TE1 sensor  
02: TE2 sensor  
TE1 sensor error  
TE2 sensor error  
F06  
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
P04  
High-pressure SW system operation  
Phase missing/power failure detection  
Inverter DC voltage error (on compressor)  
F07  
F08  
F12  
—
—
—
TL sensor error  
TO sensor error  
TS1 sensor error  
00:  
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
P05  
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
F13  
TH (Heat sink) sensor error  
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Check code  
12MACHINE CARD AND LOGBOOK  
Indication on 7-segment display on the outdoor unit  
Auxiliary code  
Check code name  
„Machine card  
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
P07  
Heat sink overheat error  
Indoor overflow error  
After test run, fill the items on the machine card and paste the card on an accessible place on the product securely before  
delivery to the customer.  
P10  
P13  
Detected indoor unit address  
—
Outdoor unit flow back error detected  
Describe the following items on the machine card:  
01: TS condition  
02: TD condition  
name, address and telephone number of the installer, his service department, the service department of the party concerned  
or at any addresses and telephone numbers of fire department, police, hospitals and burn centres;  
P15  
Gas leak detection  
P17  
P18  
P19  
P20  
—
Discharge temperature TD2 error  
Discharge temperature TD3 error  
4-way valve inverse error  
—
„Logbook  
Update the log periodically after maintenance as defined in EN378-4.  
Detected outdoor unit number  
—
High-pressure protective operation  
0 *: IGBT circuit  
1 *: Position detection circuit error  
3 *: Motor lock error  
Describe the following items on the logbook:  
1. details of the maintenance and repair works;  
Outdoor fan IPDU error  
2. quantities, kind of (new, reused, recycled) refrigerant which have been charged on each occasion, the quantities  
of refrigerant which have been transferred from the system on each occasion (see also EN378-4);  
3. if there is an analysis of a reused refrigerant, the results shall be kept in the logbook;  
4. source of the reused refrigerant;  
5. changes and replacements of components of the system;  
6. result of all periodic routine tests;  
4 *: Motor current detected  
C *: TH sensor error  
D *: TH sensor error  
P22  
(NOTE)  
Ignore 0-F appearing in the position of “*”.  
E *: Inverter DC voltage error  
(outdoor unit’s fan)  
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
P26  
P29  
G-TR short protection error  
7. significant periods of non-use.  
01: Compressor 1  
02: Compressor 2  
03: Compressor 3  
Compressor position detecting circuit error  
*1PDU number information  
01:Compressor 1  
02:Compressor 2  
03:Compressors 1 and 2  
04:Compressor 3  
05:Compressors 1 and 3  
06:Compressors 2 and 3  
07:Compressors 1, 2 and 3  
08:Fan  
09:Compressor 1 and fan  
0A:Compressor 2 and fan  
0B:Compressors 1, 2 and fan  
0C:Compressor 3 and fan  
0D:Compressors 1, 3 and fan  
0E:Compressors 2, 3 and fan  
0F:Compressors 1, 2, 3, and fan  
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WARNINGS ON REFRIGERANT LEAKAGE  
Check of Concentration Limit  
Important  
The room in which the air conditioner is to be installed  
requires a design that in the event of refrigerant gas  
leaking out, its concentration will not exceed a set limit.  
The refrigerant R410A which is used in the air conditioner is  
safe, without the toxicity or combustibility of ammonia, and is  
not restricted by laws to be imposed which protect the ozone  
layer. However, since it contains more than air, it poses the  
risk of suffocation if its concentration should rise excessively.  
Suffocation from leakage of R410A is almost non-existent.  
With the recent increase in the number of high concentration  
buildings, however, the installation of multi air conditioner  
systems is on the increase because of the need for effective  
use of floor space, individual control, energy conservation by  
curtailing heat and carrying power etc.  
Most importantly, the multi air conditioner system is able to  
replenish a large amount of refrigerant compared with  
conventional individual air conditioners. If a single unit of the  
multi conditioner system is to be installed in a small room,  
select a suitable model and installation procedure so that if  
the refrigerant accidentally leaks out, its concentration does  
not reach the limit (and in the event of an emergency,  
measures can be made before injury can occur).  
NOTE 2 :  
The standards for minimum room volume are as  
follows.  
(1) No partition (shaded portion)  
(2) When there is an effective opening with the adjacent  
room for ventilation of leaking refrigerant gas (opening  
without a door, or an opening 0.15% or larger than the  
respective floor spaces at the top or bottom of the door).  
Outdoor unit  
Refrigerant piping  
Indoor unit  
In a room where the concentration may exceed the limit,  
create an opening with adjacent rooms, or install mechanical  
ventilation combined with a gas leak detection device.  
The concentration is as given below.  
(3) If an indoor unit is installed in each partitioned room and  
the refrigerant piping is interconnected, the smallest  
room of course becomes the object. But when a  
mechanical ventilation is installed interlocked with a gas  
leakage detector in the smallest room where the density  
limit is exceeded, the volume of the next smallest room  
becomes the object.  
Total amount of refrigerant (kg)  
3
Min. volume of the indoor unit installed room (m )  
3
≤ Concentration limit (kg/m )  
Refrigerant piping  
The concentration limit of R410A which is used in multi air  
3
conditioners is 0.44kg/m .  
Outdoor unit  
Very  
NOTE 1 :  
small  
Indoor unit  
room  
If there are 2 or more refrigerating systems in a single  
refrigerating device, the amounts of refrigerant should be as  
charged in each independent device.  
Small  
room  
Medium  
room  
Large room  
Mechanical ventilation device - Gas leak detector  
Outdoor unit  
NOTE 3 :  
e.g., charged  
e.g.,  
amount (10kg)  
charged amount (15kg)  
The minimum indoor floor area compared with the amount of  
refrigerant is roughly as follows:  
(When the ceiling is 2.7m high)  
40  
Range below the  
2
35  
30  
25  
20  
15  
10  
5
m
density limit of  
3
0.44 kg/m  
Room A Room B Room C Room D Room E Room F  
Indoor unit  
(countermeasures  
not needed)  
For the amount of charge in this example:  
The possible amount of leaked refrigerant gas in rooms A,  
B and C is 10kg.  
Range above the  
density limit of  
0.44 kg/m  
(countermeasures  
needed)  
3
The possible amount of leaked refrigerant gas in rooms  
D, E and F is 15kg.  
0
10  
20  
30  
Total amount of refrigerant  
kg  
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