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)