Toshiba MMU-AP0091H User manual

PRINTED IN JAPAN, Sep, 2004 ToMo
INSTALLATION MANUAL
Outdoor Unit
Cooling Only Model
Inverter Unit
MMY-MAP0501T8, MAP0601T8
MMY-MAP0801T8, MAP1001T8
MMY-MAP1201T8
Heat Pump Model
Inverter Unit
MMY-MAP0501HT8, MAP0601HT8
MMY-MAP0801HT8, MAP1001HT8
MMY-MAP1201HT8
Heat Pump Model
Inverter Unit
MMY-MAP0501HT7, MAP0601HT7
MMY-MAP0801HT7, MAP1001HT7
MMY-MAP1201HT7
Indoor Unit
4-way Air Discharge Cassette Type
MMU-AP0091H, AP0121H, AP0151H,
MMU-AP0181H, AP0241H, AP0271H,
MMU-AP0301H, AP0361H, AP0481H
MMU-AP0561H
2-way Air Discharge Cassette Type
MMU-AP0071WH, AP0091WH, AP0121WH,
MMU-AP0151WH, AP0181WH, AP0241WH,
MMU-AP0271WH, AP0301WH, AP0481WH*
* CHINA market only
1-way Air Discharge Cassette Type
MMU-AP0071YH, AP0091YH, AP0121YH,
MMU-AP0151SH, AP0181SH, AP0241SH
Slim Duct
MMD-AP0071SPH, AP0091SPH, AP0121SPH,
MMD-AP0151SPH, AP0181SPH,
MMD-AP0071SPH(SH)-C*, AP0091SPH(SH)-C*,
MMD-AP0121SPH(SH)-C*, AP0151SPH(SH)-C*,
MMD-AP0181SPH(SH)-C*, * CHINA market only
MMD-AP0071SPH-K**, AP0091SPH-K**,
MMD-AP0121SPH-K**, AP0151SPH-K**,
MMD-AP0181SPH-K**, ** KOREA market only
Concealed Duct Standard Type
MMD-AP0071BH, AP0091BH, AP0121BH,
MMD-AP0151BH, AP0181BH, AP0241BH,
MMD-AP0271BH, AP0301BH, AP0361BH,
MMD-AP0481BH, AP0561BH
Concealed Duct High Static Pressure Type
MMD-AP0181H, AP0241H, AP0271H,
MMD-AP0361H, AP0481H, AP0721H,
MMD-AP0961H
Under Ceiling Type
MMC-AP0151H, AP0181H, AP0241H,
MMC-AP0271H, AP0361H, AP0481H
High Wall Type
MMK-AP0071H, AP0091H, AP0121H,
MMK-AP0151H, AP0181H, AP0241H,
MMK-AP0072H*, AP0092H*, AP0122H*
* European market only
Floor Standing Cabinet Type
MML-AP0071H, AP0091H, AP0121H,
MML-AP0151H, AP0181H, AP0241H
Floor Standing Concealed Type
MML-AP0071BH, AP0091BH, AP0121BH,
MML-AP0151BH, AP0181BH, AP0241BH
Floor Standing Type
MMF-AP0151H, AP0181H, AP0241H,
MMF-AP0271H, AP0361H, AP0481H,
MMF-AP0561H
FILE NO. A03-012
R410A

2
WARNINGS ON REFRIGERANT LEAKAGE
Refrigerant density limit
The room in which the air conditioner is to be installed should be designed or chosen such that in the event of a
refrigerant gas leak the density of gas should not exceed a set limit.
The refrigerant R-410A, which is used in the air conditioner product, is intrinsically safe without the toxicity or
combustibility of ammonia. R-410A is environmentally friendly and is not restricted by current or pending laws
intended to protect the ozone layer.
Risk of suffocation through leakage of R-410A is minimal. However, with the recent increase in the number of
high density buildings and use of multi air conditioner systems to ensure effective use of floor space, energy
conservation and individual control, installers should ensure it is not possible to exceed density limits in the
event of a refrigerant leak. In particular, where a single unit of the multi conditioner system is to be installed into
a small room, select a suitable model and installation procedure so that if refrigerant leaks out, density limits are
not exceeded. In a room where there is a risk of the density limit being exceeded, create an opening with
adjacent rooms, or install mechanical ventilation combined with a gas leak detection device.
The density can be calculated as shown below;
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m3)
The density calculation must be carried out in accordance with BS EN 378.
The above procedure must be completed in accordance with local, national and international standards, code of
practice and statutory requirements.
≤density limit (kg/m3)
Note 1: If there are 2 or more refrigerating systems in a
single area, the amount of refrigerant should be charged as
required for each individual unit.
For the amount of charge in this example:
• The possible amount of leaked refrigerant gas in rooms
A, B and C is 10 kg.
• The possible amount of leaked refrigerant gas in rooms
D, E and F is 15 kg.
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).
(3) If an indoor unit is installed in each partitioned room and
the refrigerant tubing is interconnected, attention must
be paid to ensure safeguards are in place to avoid
density limits being exceeded in each partitioned area.
When leak detection is interlocked with mechanical
ventilation equipment is installed in the smallest room
where the density limit is exceeded, the volume of the
next smallest room becomes the object.
Outdoor unit
e.g. charged amount (15 kg)
e.g. charged
amount (10 kg)
Room A Room B Room C Room D Room E Room F
Indoor unit
Outdoor unit
Indoor unit
Refrigerant piping
Mechanical ventilation device - gas leak detector
Refrigerant piping
Outdoor unit
Indoor unit
Large room
Medium room
Small
room
Very
small
room

3
Note 3: The minimum indoor floor area compared with the
amount of refrigerant is roughly as follows (when the
ceiling is 2.7 m high):
Total refrigerant amount
Range below the
density limit of
0.3 kg/m
(countermeasures
not needed)
3
Range above the
density limit of
0.3 kg/m
(countermeasures
needed
3
Min. indoor floor area
m
2
kg
Super Heat Recovery Modular Multi System
NOTE: Ensure power is isolated from the unit when replacing the high performance filter or when
opening the service board.
The standard ducted unit air conditioner utilizes a direct current (DC) indoor fan motor that features
current limiting protection. In the event power is not isolated prior to service, the protective control
circuit will activate and stop the unit operating. The check code “P12” will be displayed on the remote
controller – once service work has been completed, this code can be cleared by switching off then on the
electrical isolation device of the indoor unit and pressing the operation stop button on the remote
controller to reset the system.

4
CONTENTS
WARNINGS ON REFRIGERANT LEAKAGE ................................................. 2
SAFETY CAUTION ........................................................................................... 5
1. SELECTING A LOCATION FOR INSTALLATION................................... 9
2. SAFETY NOTES...................................................................................... 16
3. CHECK POINTS ...................................................................................... 17
4. KEY POINTS OF AIR CONDITIONER INSTALLATION........................ 18
5. REFRIGERANT PIPE INSTALLATION .................................................. 19
6. INDOOR UNIT INSTALLATION .............................................................. 49
7. OUTDOOR UNIT INSTALLATION .......................................................... 86
8. ELECTRIC WIRING ................................................................................. 93
9. INDOOR UNIT TERMINAL BOARD PLACEMENT AND WIRING ...... 104
10. DRAIN PIPE INSTALLATION ............................................................... 109
11. ADJUSTMENT OF AIR DIRECTION.................................................... 117
12. ADDRESS SETUP ................................................................................ 121
13. TEST OPERATION ................................................................................ 140
14. SUPPORT FUNCTION IN TEST OPERATION .................................... 147
15. TROUBLESHOOTING .......................................................................... 169
16. AIR SPEED CHARACTERISTICS ........................................................ 174
17. FAN CHARACTERISTICS .................................................................... 179
18. APPLIED CONTROL ............................................................................ 183
Appendix
– 1-way Air Discharge Cassette Type (2 series) ................................... 188
– Slim Duct ................................................................................................ 193
– High Wall (2 series) ................................................................................ 196

5
SAFETY CAUTION
Important safety information is displayed on the product and in this Installation Manual. Please ensure this is
read thoroughly and keep for future reference.
Before any repairs or maintenance is carried out an assessment of the potential risks must be undertaken, and
appropriate measures taken to ensure the safety of all personnel.
Explanation of indications
Indication
DANGER
WARNING
CAUTION
Explanation
Indicates contents will cause death or serious injury if used incorrectly.
Indicates contents could cause death or serious injury if used incorrectly.
Indicates contents could cause an injury or damage to property, furniture or pets
if the instructions are not followed carefully.
Explanation of illustrated marks
Mark Explanation
Indicates prohibited items
Indicates mandatory items
Indicates cautions (including danger/warnings)
Confirmation of warning label on the main unit
Confirm that labels are present in the specified positions (refer to the outdoor unit parts diagram).
If removing the label during maintenance or service, replace in original position.
Turn off breaker
Execute discharge
Prohibition
DANGER
Turn the breaker to the ‘Off’ position before removing the front panel and the
electrical box cover, otherwise an electric shock could be caused by high voltage
resulting in death or injury.
• During operation, a high voltage of 400 V or higher is present at the secondary circuit of
the high voltage transformer*.
• Never permit hands or body to come into close proximity with high voltage, even if
insulated.
* Refer to the electrical wiring diagram
When removing the electrical box cover, ensure that the high voltage capacitors are
fully discharged before commencing work.
• If discharge is not executed, an electric shock could be caused by high voltage resulting
in death or injury.
• After turning the breaker to the ‘Off’ position, high voltage will still be present within the
high voltage capacitor.
• Ensure capacitors are fully discharged by using a volt meter, before commencing work.
Do not turn the breaker to the ‘On’ position whilst the front panel or electrical box
cover is not fitted.
• An electric shock could occur resulting in death or injury.

6
Check earth wires
Prohibition of
modification
Use only
specified parts
Authorised
personnel only
Insulating measures
No naked flames
Refrigerant
Assembly/cabling
WARNING
Before troubleshooting or repair work, check the earth wire is connected to the earth
terminals of the unit, otherwise electric shock could occur.
• If the earth is not correctly connected, turn off the system and contact an electrical
engineer.
Do not modify this product.
• Do not disassemble or modify any part of the system. It may cause a fire, electric shock
or injury.
For spare parts, use only those specified in the parts list.
• If unapproved spare parts are used, a fire or electric shock could occur.
Ensure only competent authorised personnel have access during repair work.
• No unauthorised persons should be in the proximity of the equipment during maintenance
or repair work as there is a risk of injury from the equipment, tools or disassembled
parts.
Ensure correct electrical terminations are used.
• Cut electrical leads should be reconnected using correct specification crimp terminals to
avoid the risk of electric shock or fire.
Extinguish all open flames before maintenance of air conditioning product begins.
• Do not use brazing or welding equipment in an unventilated room as this risks carbon
monoxide poisoning.
• Ensure the brazing or welding equipment flame does not come into contact with
flammable material to avoid risk of fire.
Use the correct refrigerant type (R-410A) for the system.
• The refrigerant type will be clearly indicated on the outdoor unit.
• Never mix refrigerants as this can cause abnormally high system pressures resulting in
failure and potential injury.
• Never permit air or nitrogen to mix with the refrigerant.
• Use tools and materials appropriate for the refrigerant used in the air conditioner product.
• To prevent charging of the system with incorrect refrigerant type, the service port design
is different from that used on R-22.
• Do not attempt to reclaim the refrigerant into the outdoor unit, serious damage or injury
could result.
• Do not exceed the recommended charge. Overcharging the system after a refrigerant
leak modifies the refrigerant composition resulting in changes to the air conditioning
characteristics, which can result in failure and risk of injury. Therefore, if the product
develops a refrigerant leak, recover the refrigerant in the air conditioner, execute
vacuuming and then charge with the specified amount of liquid refrigerant.
• After installation, check the refrigerant gas does not leak.
Ensure the system is correctly reassembled after installation, maintenance or repair,
taking care to install cables correctly.
• Ensure that all cables are correctly connected.
• Make sure the cabinet or panels do not catch or damage cables during reassembly.
• If incorrectly reassembled or connected, there is a risk of product failure, which could
cause a fire or injury.

7
Insulation check
Ventilation
Beware electric
shock
Obligatory
Check after repair
Check after repair
Wear protective
equipment
Cooling check
WARNING
Ensure that the electrical insulation is intact before energising.
• After the installation is complete, carry out an insulation resistance test (using a 500 V
DC Megger), to check the resistance is 2 MΩor more between each electrically charged
section (phase) and the metal chassis (Earth).
• If the resistance is low, there is a risk of electric shock, fire and injury.
Ensure adequate ventilation is present when working with refrigerant.
• If the refrigerant gas is mixed with a flame, poisonous gas is generated.
• A refrigerant gas leak occurring in a room without ventilation can result in asphyxiation
(shortage of oxygen).
Where possible, avoid working on any system connected to live electrical supply.
• Where not possible, ensure suitable insulating gloves and clothing are worn when
working on circuits which are powered and insulated tools are used.
• Ensure that only electrically qualified personnel have access when working with live
electrical equipment.
If a refrigerant leak occurs, find the source and repair it swiftly.
• Ensure sufficient ventilation is provided if a leak is found.
• If the source cannot be found, pump the system down and tighten the service valve to
prevent refrigerant leaking into the room.
• Poisonous gas can be created when the leaked refrigerant gas comes into contact with
heaters, cookers, etc.
When installing equipment which includes a large amount of charged refrigerant
such as a multi air conditioner in a small room, it is necessary to ensure that the
refrigerant density does not exceed the limit in the event of a leak.
• A refrigerant leak that exceeds the density limit can cause oxygen starvation.
For the installation, movement or reinstallation of a system, refer to installation
manual.
• If an installation is not completed correctly, there is the possibility malfunction or failure
which could cause leaks, electric shock or fire.
After maintenance of repair work has been undertaken, check for problems ensuring
the power breaker is positioned in the ‘Off’ position.
• After replacing the electrical box cover or front panel, undertake a test run to ensure
there is no generation of smoke, abnormal heat or abnormal sound.
Check the following items are correct after repair:
1) The earth wire is correctly connected.
2) The power cord is not trapped in the product.
3) The installation is level and on a stable footing.
CAUTION
Ensure adequate personal protective equipment is used.
• Ensure gloves are worn during repair work to prevent personal injury.
• When working with refrigerant ensure eye protection is used.
• When brazing or welding wear appropriate gloves, eye/face protection and flame
retardant clothing.
If the equipment has been recently used, ensure it has sufficiently cooled before
working on it.

8
New refrigerant (R-410A)
This air conditioner features a new HFC type refrigerant (R-410A) which does not deplete the ozone layer.
1. Safety caution concerned with new refrigerant
The pressure of R-410A is 1.6 times higher than that of former refrigerant R-22. The refrigerating oil has also
been changed. Therefore be sure that the former refrigerant, refrigerant oil and other contaminants are not mixed
into the refrigerating cycle of the air conditioner with the new refrigerant during installation or service work. If
incorrect work is performed, there is a possibility of serious accident. Use tools and materials exclusive to R-
410A.
2. Cautions on installation/service
• Do not mix other refrigerants or other refrigeration oil with R-410A
• The types of tools and joints, including the service port differ from those of the former refrigerant in order to
prevent mistakes.
• The operational pressure of R-410A is high, always use pipes with the correct wall thickness and which are
specified for R-410A.
• During installation, ensure pipes are clean and ensure contaminants do not enter the pipes as the system is
affected by impurities such as water, oxide scales, dirt, oil, etc.
• Ensure brazing is completed using .owing OFN (Oxygen Free Nitrogen) gas.
• Use a vacuum pump for air purge, not refrigerant.
• R-410A refrigerant is an azeotropic mixture type refrigerant. Therefore use liquid to charge the refrigerant. If gas
is used, the composition of refrigerant will change which affects the performance characteristics of the air
conditioner.
3. Materials
• For the refrigerant pipes, use copper pipes and keep the number of joints to a minimum.
• When using long copper pipe for R-410A, it is recommended to use seamless copper material which includes
bonded oil, of amount 40 mg/10 ml or less.
• Do not use crushed, deformed or discoloured pipes.
• Use material in which the amount of contaminates inside the pipe or joint are kept to an absolute minimum.
• The use of flared joints for joining refrigeration pipes should not be used, except where fitted to the indoor/
outdoor units by the factory.

9
1. SELECTING A LOCATION FOR INSTALLATION
WARNING
The installation of the air conditioning unit must be positioned in a location that can
sufficiently support its weight and give protection against adverse environmental
conditions. Failure to do so may result in unit damage and possible human injury.
All cassette type and concealed duct air conditioner units must be installed at a minimum
height of 2.5m or more from the floor. To prevent contact between human and air
conditioners moving parts and live electrical components.
Installation Location Selection for Outdoor unit
Obtain permission from the customer to install the unit in a location that satisfies the
following requirements :
• A location that permits level installation of the unit.
• A location that provides enough space to service the unit safely
• A location where water draining from the unit will not pose a problem
Avoid installing in the following places.
• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide
gas (hot spring). (Should the unit be used in these places, special protective measures are needed.)
• Place exposed to oil, vapor, oil smoke or corrosive gas.
• Place where organic solvent is used nearby.
• Place close to a machine generating high frequency.
• Place where the discharged air blows directly into the window of the neighboring house. (For outdoor unit)
• Place where noise of the outdoor unit is easily transmitted.
(When installing the air conditioner on the boundary with the neighbour, pay due attention to the level of noise.)
• Place with poor ventilation.
(Especially in Concealed duct type indoor unit, before air ducting work, check whether value of air volume,
static pressure and duct resistance are correct.)

10
Combination of outdoor unit
Cooling Only Model
HP
(Capacity
code)
5HP ( 5)
6HP ( 6)
8HP ( 8)
10HP (10)
12HP (12)
14HP (14)
16HP (16)
18HP (18)
20HP (20)
22HP (22)
22HP (22)
24HP (24)
24HP (24)
26HP (26)
28HP (28)
30HP (30)
32HP (32)
32HP (32)
34HP (34)
34HP (34)
36HP (36)
36HP (36)
38HP (38)
40HP (40)
42HP (42)
44HP (44)
46HP (46)
48HP (46)
Modelname
MMY-
MAP0501HT8
MAP0601HT8
MAP0801HT8
MAP1001HT8
MAP1201HT8
AP1401HT8
AP1601HT8
AP1801HT8
AP2001HT8
AP2201HT8
AP2211HT8
AP2401HT8
AP2411HT8
AP2601HT8
AP2801HT8
AP3001HT8
AP3201HT8
AP3211HT8
AP3401HT8
AP3411HT8
AP3601HT8
AP3611HT8
AP3801HT8
AP4001HT8
AP4201HT8
AP4401HT8
AP4601HT8
AP4801HT8
No. of
combined
units
1
1
1
1
1
2
2
2
2
3
2
3
2
3
3
3
4
3
4
3
4
3
4
4
4
4
4
4
Inverter 5HP Used Inverter 6HP Used Inverter 8HP Used Inverter 10HP Used Inverter 12HP Used
MMY- Qty MMY- Qty MMY- Qty MMY- Qty MMY- Qty
MAP0501HT8 1
MAP0601HT8 1
MAP0801HT8 1
MAP1001HT8 1
MAP1201HT8 1
MAP0601HT8 1 MAP0801HT8 1
MAP0801HT8 2
MAP0801HT8 1 MAP1001HT8 1
MAP1001HT8 2
MAP0601HT8 1 MAP0801HT8 2
MAP1001HT8 1 MAP1201HT8 1
MAP0801HT8 3
MAP1201HT8 2
MAP0801HT8 2 MAP1001HT8 1
MAP0801HT8 1 MAP1001HT8 2
MAP1001HT8 3
MAP0801HT8 4
MAP1001HT8 2 MAP1201HT8 1
MAP0801HT8 3 MAP1001HT8 1
MAP1001HT8 1 MAP1201HT8 2
MAP0801HT8 2 MAP1001HT8 2
MAP1201HT8 3
MAP0801HT8 1 MAP1001HT8 3
MAP1001HT8 4
MAP1001HT8 3 MAP1201HT8 1
MAP1001HT8 2 MAP1201HT8 2
MAP1001HT8 1 MAP1201HT8 3
MAP1201HT8 4
HP
(Capacity
code)
5HP ( 5)
6HP ( 6)
8HP ( 8)
10HP (10)
12HP (12)
14HP (14)
16HP (16)
18HP (18)
20HP (20)
22HP (22)
22HP (22)
24HP (24)
24HP (24)
26HP (26)
28HP (28)
30HP (30)
32HP (32)
32HP (32)
34HP (34)
34HP (34)
36HP (36)
36HP (36)
38HP (38)
40HP (40)
42HP (42)
44HP (44)
46HP (46)
48HP (46)
Modelname
MMY-
MAP0501T8
MAP0601T8
MAP0801T8
MAP1001T8
MAP1201T8
AP1401T8
AP1601T8
AP1801T8
AP2001T8
AP2201T8
AP2211T8
AP2401T8
AP2411T8
AP2601T8
AP2801T8
AP3001T8
AP3201T8
AP3211T8
AP3401T8
AP3411T8
AP3601T8
AP3611T8
AP3801T8
AP4001T8
AP4201T8
AP4401T8
AP4601T8
AP4801T8
No. of
combined
units
1
1
1
1
1
2
2
2
2
3
2
3
2
3
3
3
4
3
4
3
4
3
4
4
4
4
4
4
Inverter 5HP Used Inverter 6HP Used Inverter 8HP Used Inverter 10HP Used Inverter 12HP Used
MMY- Qty MMY- Qty MMY- Qty MMY- Qty MMY- Qty
MAP0501T8 1
MAP0601T8 1
MAP0801T8 1
MAP1001T8 1
MAP1201T8 1
MAP0601T8 1 MAP0801T8 1
MAP0801T8 2
MAP0801T8 1 MAP1001T8 1
MAP1001T8 2
MAP0601T8 1 MAP0801T8 2
MAP1001T8 1 MAP1201T8 1
MAP0801T8 3
MAP1201T8 2
MAP0801T8 2 MAP1001T8 1
MAP0801T8 1 MAP1001T8 2
MAP1001T8 3
MAP0801T8 4
MAP1001T8 2 MAP1201T8 1
MAP0801T8 3 MAP1001T8 1
MAP1001T8 1 MAP1201T8 2
MAP0801T8 2 MAP1001T8 2
MAP1201T8 3
MAP0801T8 1 MAP1001T8 3
MAP1001T8 4
MAP1001T8 3 MAP1201T8 1
MAP1001T8 2 MAP1201T8 2
MAP1001T8 1 MAP1201T8 3
MAP1201T8 4
Heat-pump Model (50Hz)

11
Heat-pump Model (60Hz)
HP
(Capacity
code)
5HP ( 5)
6HP ( 6)
8HP ( 8)
10HP (10)
12HP (12)
14HP (14)
16HP (16)
18HP (18)
20HP (20)
22HP (22)
22HP (22)
24HP (24)
24HP (24)
26HP (26)
28HP (28)
30HP (30)
32HP (32)
32HP (32)
34HP (34)
34HP (34)
36HP (36)
36HP (36)
38HP (38)
40HP (40)
42HP (42)
44HP (44)
46HP (46)
48HP (46)
Modelname
MMY-
MAP0501HT7
MAP0601HT7
MAP0801HT7
MAP1001HT7
MAP1201HT7
AP1401HT7
AP1601HT7
AP1801HT7
AP2001HT7
AP2201HT7
AP2211HT7
AP2401HT7
AP2411HT7
AP2601HT7
AP2801HT7
AP3001HT7
AP3201HT7
AP3211HT7
AP3401HT7
AP3411HT7
AP3601HT7
AP3611HT7
AP3801HT7
AP4001HT7
AP4201HT7
AP4401HT7
AP4601HT7
AP4801HT7
No. of
combined
units
1
1
1
1
1
2
2
2
2
3
2
3
2
3
3
3
4
3
4
3
4
3
4
4
4
4
4
4
Inverter 5HP Used Inverter 6HP Used Inverter 8HP Used Inverter 10HP Used Inverter 12HP Used
MMY- Qty MMY- Qty MMY- Qty MMY- Qty MMY- Qty
MAP0501HT7 1
MAP0601HT7 1
MAP0801HT7 1
MAP1001HT7 1
MAP1201HT7 1
MAP0601HT7 1 MAP0801HT7 1
MAP0801HT7 2
MAP0801HT7 1 MAP1001HT7 1
MAP1001HT7 2
MAP0601HT7 1 MAP0801HT7 2
MAP1001HT7 1 MAP1201HT7 1
MAP0801HT7 3
MAP1201HT7 2
MAP0801HT7 2 MAP1001HT7 1
MAP0801HT7 1 MAP1001HT7 2
MAP1001HT7 3
MAP0801HT7 4
MAP1001HT7 2 MAP1201HT7 1
MAP0801HT7 3 MAP1001HT7 1
MAP1001HT7 1 MAP1201HT7 2
MAP0801HT7 2 MAP1001HT7 2
MAP1201HT7 3
MAP0801HT7 1 MAP1001HT7 3
MAP1001HT7 4
MAP1001HT7 3 MAP1201HT7 1
MAP1001HT7 2 MAP1201HT7 2
MAP1001HT7 1 MAP1201HT7 3
MAP1201HT7 4
Equipment
1. Outdoor units
Inverter unit
Corresponding HP
5 HP 6 HP 8 HP 10 HP 12 HP
Heat pump MMY- MAP0501HT8 MAP0601HT8 MAP0801HT8 MAP1001H8 MAP1201HT8
Heat pump MMY- MAP0501HT7 MAP0601HT7 MAP0801HT7 MAP1001HT7 MAP1201HT7
Model name
Cooling only MMY- MAP0501T8 MAP0601T8 MAP0801T8 MAP1001T8 MAP1201T8
Cooling capacity (kW) 14.0 16.0 22.4 28.0 33.5
Heating capacity (kW) 16.0 18.0 25.0 31.5 37.5
Appearance

12
2. Outdoor units (Combination of outdoor units)
Corresponding HP 5 HP 6 HP 8 HP 10 HP 12 HP 14 HP 16 HP
MMY- MAP0501HT8 MAP0601HT8 MAP0801HT8 MAP1001HT8 MAP1201HT8 AP1401HT8 AP1601HT8
MMY- MAP0501HT7 MAP0601HT7 MAP0801HT7 MAP1001HT7 MAP1201HT7 AP1401HT7 AP1601HT7
Combined Model
MMY- MAP0501T8 MAP0601T8 MAP0801T8 MAP1001T8 MAP1201T8 AP1401T8 AP1601T8
Cooling capacity (kW) 14.0 16.0 22.4 28.0 33.5 38.4 45.0
Heating capacity (kW) 16.0 18.0 25.0 31.5 37.5 43.0 50.0
5 HP 6 HP 8 HP 10 HP 12 HP 8 HP 8 HP
— — — — — 6 HP 8 HP
— — — — — — —
Combined outdoor units
— — — — — — —
No. of connectable indoor units 8 10 13 16 20 23 27
Corresponding HP 18 HP 20 HP 22 HP 22 HP 24 HP 24 HP 26 HP
MMY- AP1801HT8 AP2001HT8 AP2201HT8 AP2211HT8 AP2401HT8 AP2411HT8 AP2601HT8
MMY- AP1801HT7 AP2001HT7 AP2201HT7 AP2211HT7 AP2401HT7 AP2411HT7 AP2601HT7
Combined Model
MMY- AP1801T8 AP2001T8 AP2201T8 AP2211T8 AP2401T8 AP2411T8 AP2601T8
Cooling capacity (kW) 50.4 56.0 61.5 61.5 68.0 68.0 73.0
Heating capacity (kW) 56.5 63.0 69.0 69.0 76.5 76.5 81.5
10 HP 10 HP 8 HP 12 HP 8 HP 12 HP 10 HP
8 HP 10 HP 8 HP 10 HP 8 HP 12 HP 8 HP
— — 6 HP — 8 HP — 8 HP
Combined outdoor units
— — — — — — —
No. of connectable indoor units 30 33 37 37 40 40 43
Corresponding HP 28 HP 30 HP 32 HP 32 HP 34 HP 34 HP 36 HP
MMY- AP2801HT8 AP3001HT8 AP3201HT8 AP3211HT8 AP3401HT8 AP3411HT8 AP3601HT8
MMY- AP2801HT7 AP3001HT7 AP3201HT7 AP3211HT7 AP3401HT7 AP3411HT7 AP3601HT7
Combined Model
MMY- AP2801T8 AP3001T8 AP3201T8 AP3211T8 AP3401T8 AP3411T8 AP3601T8
Cooling capacity (kW) 78.5 84.0 90.0 90.0 96.0 96.0 101.0
Heating capacity (kW) 88.0 95.0 100.0 100.0 108.0 108.0 113.0
10 HP 10 HP 8 HP 12 HP 10 HP 12 HP 10 HP
10 HP 10 HP 8 HP 10 HP 8 HP 12 HP 10 HP
8 HP 10 HP 8 HP 10 HP 8 HP 10 HP 8 HP
Combined outdoor units
— — 8 HP — 8 HP — 8 HP
No. of connectable indoor units 47 48 48 48 48 48 48
Corresponding HP 36 HP 38 HP 40 HP 42 HP 44 HP 46 HP 48 HP
MMY- AP3611HT8 AP3801HT8 AP4001HT8 AP4201HT8 AP4401HT8 AP4601HT8 AP4801HT8
MMY- AP3611HT7 AP3801HT7 AP4001HT7 AP4201HT7 AP4401HT7 AP4601HT7 AP4801HT7
Combined Model
MMY- AP3611T8 AP3801T8 AP4001T8 AP4201T8 AP4401T8 AP4601T8 AP4801T8
Cooling capacity (kW) 101.0 106.5 112.0 118.0 123.5 130.0 135.0
Heating capacity (kW) 113.0 119.5 126.5 132.0 138.0 145.0 150.0
12 HP 10 HP 10 HP 12 HP 12 HP 12 HP 12 HP
12 HP 10 HP 10 HP 10 HP 12 HP 12 HP 12 HP
12 HP 10 HP 10 HP 10 HP 10 HP 12 HP 12 HP
Combined outdoor units
— 8 HP 10 HP 10 HP 10 HP 10 HP 12 HP
No. of connectable indoor units 48 48 48 48 48 48 48

13
Type Appearance Model name Capacity rank
Capacity
code
Cooling
capacity (kW)
Heating
capacity (kW)
MMU-AP0091H 009 type 1 2.8 3.2
MMU-AP0121H 012 type 1.25 3.6 4.0
MMU-AP0151H 015 type 1.7 4.5 5.0
MMU-AP0181H 018 type 2 5.6 6.3
MMU-AP0241H 024 type 2.5 7.1 8.0
MMU-AP0271H 027 type 3 8.0 9.0
MMU-AP0301H 030 type 3.2 9.0 10.0
MMU-AP0361H 036 type 4 11.2 12.5
MMU-AP0481H 048 type 5 14.0 16.0
4-wa
y
Air Dischar
g
e
Cassette Type
MMU-AP0561H 056 type 6 16.0 18.0
MMU-AP0071WH 007 type 0.8 2.2 2.5
MMU-AP0091WH 009 type 1 2.8 3.2
MMU-AP0121WH 012 type 1.25 3.6 4.0
MMU-AP0151WH 015 type 1.7 4.5 5.0
MMU-AP0181WH 018 type 2 5.6 6.3
MMU-AP0241WH 024 type 2.5 7.1 8.0
MMU-AP0271WH 027 type 3 8.0 9.0
MMU-AP0301WH 030 type 3.2 9.0 10.0
2-wa
y
Air Dischar
g
e
Cassette Type
MMU-AP0481WH*1) 048 type 5 14.0 16.0
MMU-AP0071YH 007 type 0.8 2.2 2.5
MMU-AP0091YH 009 type 1 2.8 3.2
MMU-AP0121YH 012 type 1.25 3.6 4.0
MMU-AP0151SH 015 type 1.7 4.5 5.0
MMU-AP0181SH 018 type 2 5.6 6.3
MMU-AP0241SH 024 type 2.5 7.1 8.0
MMU-AP0152SH 015 type 1.7 4.5 5.0
MMU-AP0182SH 018 type 2 5.6 6.3
1-wa
y
Air Dischar
g
e
Cassette Type
MMU-AP0242SH 024 type 2.5 7.1 8.0
MMD-AP0071SPH 007 type 0.8 2.2 2.5
MMD-AP0091SPH 009 type 1 2.8 3.2
MMD-AP0121SPH 012 type 1.25 3.6 4.0
MMD-AP0151SPH 015 type 1.7 4.5 5.0
MMD-AP0181SPH 018 type 2 5.6 6.3
MMD-AP0071SPH(SH)-C*
1)
007 type 0.8 2.2 2.5
MMD-AP0091SPH(SH)-C*
1)
009 type 1 2.8 3.2
MMD-AP0121SPH(SH)-C*
1)
012 type 1.25 3.6 4.0
MMD-AP0151SPH(SH)-C*
1)
015 type 1.7 4.5 5.0
MMD-AP0181SPH(SH)-C*
1)
018 type 2 5.6 6.3
MMD-AP0071SPH-K *
3)
007 type 0.8 2.2 2.5
MMD-AP0091SPH-K *
3)
009 type 1 2.8 3.2
MMD-AP0121SPH-K *
3)
012 type 1.25 3.6 4.0
MMD-AP0151SPH-K *
3)
015 type 1.7 4.5 5.0
Slim Duct Type
MMD-AP0181SPH-K
*
3)
018 type 2 5.6 6.3
MMD-AP0071BH 007 type 0.8 2.2 2.5
MMD-AP0091BH 009 type 1 2.8 3.2
MMD-AP0121BH 012 type 1.25 3.6 4.0
MMD-AP0151BH 015 type 1.7 4.5 5.0
MMD-AP0181BH 018 type 2 5.6 6.3
MMD-AP0241BH 024 type 2.5 7.1 8.0
MMD-AP0271BH 027 type 3 8.0 9.0
MMD-AP0301BH 030 type 3.2 9.0 10.0
MMD-AP0361BH 036 type 4 11.2 12.5
MMD-AP0481BH 048 type 5 14.0 16.0
Concealed Duct
Standard Type
MMD-AP0561BH 056 type 6 16.0 18.0
MMD-AP0181H 018 type 2 5.6 6.3
MMD-AP0241H 024 type 2.5 7.1 8.0
MMD-AP0271H 027 type 3 8.0 9.0
MMD-AP0361H 036 type 4 11.2 12.5
MMD-AP0481H 048 type 5 14.0 16.0
MMD-AP0721H 072 type 8 22.4 25.0
Concealed Duct
High Static
Pressure Type
MMD-AP0961H 096 type 10 28.0 31.5
3. Indoor units *1) China market only *2) European market only *3) Korea market only

14
Type Appearance Model name Capacity rank
Capacity
code
Cooling
capacity (kW)
Heating
capacity (kW)
MMC-AP0151H 015 type 1.7 4.5 5.0
MMC-AP0181H 018 type 2 5.6 6.3
MMC-AP0241H 024 type 2.5 7.1 8.0
MMC-AP0271H 027 type 3 8.0 9.0
MMC-AP0361H 036 type 4 11.2 12.5
Under Ceiling Type
MMC-AP0481H 048 type 5 14.0 16.0
MMK-AP0071H 007 type 0.8 2.2 2.5
MMK-AP0091H 009 type 1 2.8 3.2
MMK-AP0121H 012 type 1.25 3.6 4.0
MMK-AP0151H 015 type 1.7 4.5 5.0
MMK-AP0181H 018 type 2 5.6 6.3
High Wall Type
(1 Series)
MMK-AP0241H 024 type 2.5 7.1 8.0
MMK-AP0072H*2) 007 type 0.8 2.2 2.5
MMK-AP0092H*2) 009 type 1.0 2.8 3.2
High Wall Type
(2 Series) *2)
MMK-AP0122H*2) 012 type 1.25 3.6 4.0
MML-AP0071H 007 type 0.8 2.2 2.5
MML-AP0091H 009 type 1 2.8 3.2
MML-AP0121H 012 type 1.25 3.6 4.0
MML-AP0151H 015 type 1.7 4.5 5.0
MML-AP0181H 018 type 2 5.6 6.3
Floor Standing
Cabinet Type
MML-AP0241H 024 type 2.5 7.1 8.0
MML-AP0071BH 007 type 0.8 2.2 2.5
MML-AP0091BH 009 type 1 2.8 3.2
MML-AP0121BH 012 type 1.25 3.6 4.0
MML-AP0151BH 015 type 1.7 4.5 5.0
MML-AP0181BH 018 type 2 5.6 6.3
Floor Standing
Concealed Type
MML-AP0241BH 024 type 2.5 7.1 8.0
MMF-AP0151H 015 type 1.7 4.5 5.0
MMF-AP0181H 018 type 2 5.6 6.3
MMF-AP0241H 024 type 2.5 7.1 8.0
MMF-AP0271H 027 type 3 8.0 9.0
MMF-AP0361H 036 type 4 11.2 12.5
MMF-AP0481H 048 type 5 14.0 16.0
Floor Standing Type
MMF-AP0561H 056 type 6 16.0 18.0
*1) China market only *2) European market only *3) Korea market only

15
4. Tools
• Required tools for R-410A
Mixing of different types of oil may cause generation of sludge, clogging of capillary, etc. Accordingly, the tools
to be used are classified into the following three types:
1) Tools exclusively for R-410A, which cannot be used for conventional refrigerant R-22.
2) Tools exclusively for R-410A, but can also be used for conventional refrigerant R-22.
3) Tools commonly used for R-410A and for conventional refrigerant R-22.
The table below shows the tools exclusively for R-410A and their interchangeability.
Tools exclusively for R-410A (the following tools for R-410A are required)
Tools whose specifications are changed for R-410A and their interchangeability
No.
1
2
3
4
5
6
7
8
9
10
Used tool
Flare tool
Copper pipe gauge for
adjusting projection margin
Torque wrench
Gauge manifold
Charge hose
Vacuum pump adapter
Electronic balance for
refrigerant charging
Refrigerant cylinder
Leakage detector
Charging cylinder
Usage
Pipe flaring
Flaring by conventional
flare tool
Connection of flare nut
Evacuating, refrigerant
charge, run check, etc.
Vacuum evacuating
Refrigerant charge
Refrigerant charge
Gas leakage check
Refrigerant charge
Existence of new
equipment for R-410A
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
See Note 2
Conventional air
conditioner installation
Whethernewequipment
can be used with
conventionalrefrigerant
Ye s
See Note 1
No
No
Ye s
Ye s
No
Ye s
No
R-410A air conditioner installation
Note 1: When flaring is carried out for R-410A using the conventional flare tools, adjustment of projection margin is necessary. For
this adjustment, a copper pipe gauge, etc. are necessary.
Note 2: Charging cylinder for R-410A is currently being developed.
General tools (conventional tools can be used)
In addition to the above exclusive tools, the following equipment which serves also for R-22 is necessary as the
general tools:
1. Vacuum pump
Use vacuum pump by attaching vacuum pump
adapter
2. Torque wrench
3. Pipe cutter
4. Reamer
5. Pipe bender
6. Level vial
7. Screwdriver (+, -)
8. Spanner or monkey wrench
9. Hole core drill
10. Hexagon wrench (opposite side 4 mm)
11. Tape measure
12. Metal saw
Also prepare the following equipment for other installation method and run check.
1. Clamp meter
2. Thermometer
3. Insulation resistance tester (Megger)
4. Volt meter
Whether conventional
equipment can be used
See Note 1
See Note 1
No
No
No
Ye s
No
No
No

16
2. SAFETY NOTES
• Ensure that all Local, National and International regulations are satisfied.
• After the installation work has been completed, perform a trial operation to check for possible problems. Follow
the owner's manual to explain how to use and maintain the unit to the customer.
• Turn off the main power supply switch (or breaker) before any unit maintenance.
• Ensure the customer keeps both the installation and owners manual together.
WARNING
• Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner.
Inappropriate installation may result in water leakage, a electric shock or fire.
• Turn off the main power supply switch or breaker before attempting any electrical work.
Make sure all power switches are off. Failure to do so may cause a electric shock.
• Connect all the installation wiring correctly.
If the installation wiring is incorrect, electrical parts may be damaged.
• During the transportation and installation of the air conditioning unit, ensure that gaseous matter
other than the specified refrigerant does not enter into the refrigeration cycle.
If a refrigerant becomes contaminated with foreign gases, the gas pressure within the refrigerant cycle will
become abnormally high and may result in the fracture of pipework and possible human injury.
• Do not modify this unit by removing any of the safety guards or by-passing any of the safety
interlock switches.
• Exposure of the unit to water or moisture before installation may cause a short-circuit of electrical
parts.
Do not store it in a wet basement or expose to rain or water.
• After unpacking the unit, examine for possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• 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 generate.
• 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.
• Electrical work must be performed by a qualified electrician in accordance with the Installation
Manual. Make sure the air conditioner uses a designated power supply.
An insufficient power supply capacity or inappropriate installation may cause fire.
• When connecting the installation wiring, be sure that all fixing terminal are securely fixed.
• Conform to the regulations of the local electric company when wiring the power supply.
Inappropriate grounding may cause electric shock.
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible gases.
If a combustible gas leaks within the vicinity of the unit, a fire may occur.

17
3. CHECK POINTS
Check before operation
• Turn on the main power supply 12 hours or more before starting the operation.
• Check and ensure earth wiring is connected.
• Check and ensure air filter is fitted to indoor unit.
Heating capacity
• During the heating operation the heat pump units absorbs heat from the outside and delivers heat into the room. If the
outdoor temperature lowers the heating capacity decreases.
• When the outdoor temperature is low, it is recommended that other forms of heating are used.
Defrost operation in heating operation
• If frost is found on the outdoor unit during heating operation, the defrost operation starts automatically for a period of 2 to
10 minutes. This will increase the heating effect.
• During the defrost operation, both the indoor and outdoor unit fans will stop.
Protection for 3 minutes
• The outdoor unit does not operate for approximately 3 minutes after the air conditioner has been immediately restarted
after stop, or power supply has been turned on. This is to protect the system.
Main power failure
• If a power failure occurs during operation, all unit operations will stop.
• When the power is turned on after power failure, the operation lamp on the remote controller will flash.
• When restarting the operation, push ON/OFF button again.
Fan rotation of stopped unit
• When other indoor units are in operation, the fan on the indoor unit which is in stand-by mode will rotate to protect the
machine. This occurs once an hour for several minutes.
Protective device (High pressure switch)
When excessive load is applied to the air conditioner the high pressure switch will activate. Upon activation of this protective
device the operation lamp will remain on, but the unit operation will stop. When the protective device operates, ‘CHECK’
characters will be displayed flashing on the remote controller. The protective device may be activated in the following cases.
Cooling
• When air inlet or outlet of the outdoor unit is closed.
• When strong wind blows continuously against the air outlet of the outdoor unit.
Heating
• When excessive dust or dirt is adhered to the air filter of the indoor unit.
• When the air outlet of the indoor unit is blocked.
NOTE
If the protective device activates, turn off the main power supply, remove the cause and restart the operation.
Cooling/ heating operation of Multi system air conditioner
• In a Multi system air conditioner, cooling and heating operation cannot be performed at the same time from
indoor units that are connected within a refrigerant cycle to the same outdoor unit or module. Each indoor unit
can be operated independently, if both operations (Heat and cool) are performed at the same time, the indoor
unit which is in cooling mode, will stop and display [ Operation ready] on the remote controller. The unit in
heat mode will continue to operate.
When cool or heat mode is selected as the prioritized mode of the air conditioner, the other operation mode
becomes unavailable. If a mode other than the set mode is selected. [ PRE-HEAT] or [ Operation ready]
will appear on the remote controller and the operation does not function.
Characteristics of heating operation
• Upon starting the air conditioner, air will not immediately blow out. When the indoor heat exchanger has been
heated for 3 to 5 minutes (differs according to the temperature of the indoor/outdoor temperature), hot air starts
blowing.
• During the operation, the outdoor unit may stop when the outdoor temperature becomes to high.
• When a unit is in fan only operation and a further unit then demands heating mode, the fan operation maybe
stopped temporarily to prevent the discharge of hot air.

18
The procedure described above represents only the general sequence of steps; the sequence may have to be
altered according to the circumstances of the specific installation job.
[Step] [Key Points]
(Prior to Installation)
Understanding of requirements for installation. Clearly determine the extent of the installation work.
Drafting of diagrams
Draft :
• Control wiring system diagram
• Refrigerant line system diagram
• Power wiring system diagram
(Installation)
Sleeve/insert installation Pay careful attention to the downward slope of the drain pipe.
Indoor unit and flow selector unit installation
Be sure to check the name of the model in order to avoid any
installation mistakes. If the model has an installation pattern, attach
the pattern to the ceiling to mark the position of the ceiling openings
and to keep dust away.
Refrigerant pipe installation
Make sure that the pipe system is dry, clean and airtight.
When brazing pipes, blow out the system with nitrogen.
Do not forget the system indications.
(to outdoor outlet)
Drain pipe installation Pipes should have downward slope (of at least 1/100).
Duct installation
Make sure the duct is large enough to carry the desired volume of air.
Be careful not to make any errors in the external static pressure
calculations.
Insulation work
Be especially careful to close off all gaps where connections are
made to the indoor unit and at joints in the branching kit. Do not forget
the drain pipes.
Electrical work
(control wires and power wires)
Use two-core shielded wires for the control wires and use separate
power supplies for the indoor and outdoor units. For connecting the
flow selector unit, be sure to use the supplied cable or connection
cable kit sold separately.
Various switch settings Set the switches correctly, as indicated in the control wiring system
diagram.
Outdoor unit base installation Make sure that the base is level.
Outdoor unit installation Ensure that there is adequate air flow and service space around the
outdoor unit. Indicate the system names clearly.
Outside circulation, refrigerant pipe
installation From the outside outlet of the buliding to the outdoor unit.
Gas-leak test In the final test, the system must be pressurized at 3.73MPa
(38kg/cm²G) for 24 hours with no decrease in pressure.
Vacuum suction Use a vacuum pump with reverse flow prevention adaptor with a large
output volume and that can achieve a high level of vacuum.
Addition of refrigerant Record the amount of refrigerant that will be added to the system on
both the outdoor unit and on the pre-test operation checklist.
Ceiling panel installation Make sure that the ceiling panel is attached to the ceiling surface
leaving no gaps.
Test operation and adjustment Operate the indoor units one by one, making sure that all wiring and
pipes are connected correctly and fill out the checklist.
Owner’s Manual transfer Explain how to operate the system clearly and concisely.
4. KEY POINTS FOR AIR CONDITIONER INSTALLATION
In order to prevent problems before they arise, carefully read the Installation Manual provided with the equipment
and the Owner’s Manual before installing the air conditioner.
4-1. Flow of Air Conditioner Installation Work

19
5. REFRIGERANT PIPE INSTALLATION
5-1. Work Procedure
5-2. Three Principles of Refrigerant Pipes
Observe the three principles of refrigerant pipes
Three principles of refrigerant pipes
Indoor unit
installation
Sizing
the pipes
Preliminary
installation
Flaring
Nitrogen gas blow
Brazing
Flushing Leak test Vacuum
suction
Leak test
Dry
Clean
Air-
tight
Causes of Problems Preventing Problems
• Moisture (in the form of
rainwater or water used during
installation)
getting inside of the pipes
• Moisture from condensation
forming or seeping into the pipes
• Oxidation inside pipes during
brazing
• Dirt, dust, or foreign matter
getting inside pipes
• Poor brazing
• Poor flaring
Careful
handling
of pipes
Flushing Vacuum
suction
Nitrogen gas blow
Careful handling of pipes
Flushing
Use of suitable materials
(copper pipes, solder, etc.)
Perform basic work
of brazing carefully
Perform basic work
of flaring carefully
Leak
Dry
NOT GOOD NOT GOOD NOT GOOD
Clean Airtight
Make sure there is no moisture
inside of the pipes
Make sure there is no dirt
inside of the pipes
Make sure the refrigerant
does not leak
Moisture Dirt

20
 
 
 
 
 
5-3. Selecting the Refrigerant pipework Material
• Refrigerant pipes
• Material: Phosphoric deoxidized seam-less pipe
• Capacity code of outdoor unit / indoor unit
• For each indoor unit, the capacity code is determined for each capacity rank.
• For each outdoor unit, the capacity code is determined for each capacity rank. The maximum number of the
connectable indoor units and the total capacity code value of the indoor units must also be determined.
Against the capacity code of the outdoor unit, the total capacity codes of the connectable indoor units differ
according to the height difference between indoor units.
• When the height difference between indoor units is 15m or less: Up to 135% of capacity of the outdoor unit can be achieved.
• When the height difference between indoor units is 15m or more: Up to 105% of capacity of the outdoor unit can be achieved.
Table 1 Table 2
Indoor unit
capacity rank
007 type
009 type
012 type
015 type
018 type
024 type
027 type
030 type
036 type
048 type
056 type
072 type
096 type
Capacity code
Equivalent Equivalent
to HP to capacity
0.8 2.2
1 2.8
1.25 3.6
1.7 4.5
2 5.6
2.5 7.1
38
3.2 9
4 11.2
514
616
8 22.4
10 28
Outdoor unit
model name
MMY-MAP0501∗
MMY-MAP0601∗
MMY-MAP0801∗
MMY-MAP1001∗
MMY-MAP1201∗
MMY-AP1401∗
MMY-AP1601∗
MMY-AP1801∗
MMY-AP2001∗
MMY-AP2201∗
MMY-AP2211∗
MMY-AP2401∗
MMY-AP2411∗
MMY-AP2601∗
Capacity code
Equivalent Equivalent
to HP to capacity
514
616
8 22.4
10 28
12 33.5
14 38.4
16 45
18 50.4
20 56
22 61.5
24 68
26 73
No. of
indoor
units
8
10
13
16
20
23
27
30
33
37
40
43
Outdoor unit
model name
MMY-AP2801∗
MMY-AP3001∗
MMY-AP3201∗
MMY-AP3211∗
MMY-AP3401∗
MMY-AP3411∗
MMY-AP3601∗
MMY-AP3611∗
MMY-AP3801∗
MMY-AP4001∗
MMY-AP4201∗
MMY-AP4401∗
MMY-AP4601∗
MMY-AP4801∗
Capacity code
Equivalent Equivalent
to HP to capacity
28 78.5
30 84
32 90
34 96
36 101
38 106.5
40 112
42 118
44 123.5
46 130
48 135
Table 3
No.
c
Piping parts
Outdoor unit
↓
T-shape
branching joint
Name
Connecting pipe of
outdoor unit
Selection of pipe size
1) Connecting pipe outdoor unit
Remarks
Same to connecting
pipe size of outdoor unit
Model
MMY-MAP0501∗
MMY-MAP0601∗
MMY-MAP0801∗
MMY-MAP1001∗
MMY-MAP1201∗
Gas side
Ø15.9
Ø19.1
Ø22.2
Ø22.2
Ø28.6
Liquid side
Ø9.5
Ø9.5
Ø12.7
Ø12.7
Ø12.7
2) Pipe size for connecting piping between outdoor units
Total capacity codes of outdoor
units at downstream side
Equivalent Equivalent
to capacity to HP
Below 38.4 Below 14
38.4 to below 61.5 14 to below 22
61.5 to below 73.0 22 to below 26
73.0 to below 96.0 26 to below 36
Above 101.0 Above 36
Gas
side
Ø28.6
Ø28.6
Ø34.9
Ø34.9
Ø41.3
Liquid
side
Ø12.7
Ø15.9
Ø15.9
Ø19.1
Ø22.2
ii
ii
i
Balance
pipe
Ø9.5
3) Size of main pipe
Gas side
Ø15.9
Ø19.1
Ø22.2
Ø28.6
Ø28.6
Ø34.9
Ø34.9
Ø41.3
Ø41.3∗
Liquid side
Ø9.5
Ø9.5
Ø12.7
Ø12.7
Ø15.9
Ø15.9
Ø19.1
Ø22.2
Ø22.2∗
* Max. equivalent length of main pipe is below 70m.
Main connecting
piping between of
outdoor units
Main pipe
Between T-shape
branching joints
T-shape joint of
header unit
↓
1st branching
section
d
e
Total capacity codes of all outdoor units
Equivalent Equivalent
to capacity to HP
Below 16.0 Below 6
16.0 to below 22.4 6 to below 8
22.4 to below 33.5 8 to below 12
33.5 to below 38.4 12 to below 14
38.4 to below 61.5 14 to below 22
61.5 to below 73.0 22 to below 26
73.0 to below 101.0 26 to below 36
101.0 to below 130.0 36 to below 46
Above 130.0 Above 46
Pipe size differs based
on total capacity code
value of outdoor units at
downstream side.
(See Table 2.)
Pipe size differs based
on capacity code of
outdoor unit.
(See Table 2.)
iBalance pipe
No. of
indoor
units
47
48
48
48
48
48
48
48
48
48
48