Toshiba MMK-AP0074MH-E, MMK-AP0094MH-E, MMK-AP0124MH-E, MMK-AP0074MH-TR, MMK-AP0094MH-TR SERVICE MANUAL
...
FILE NO. A10-034-1
SERVICE MANUAL
MULT TYPE
<High Wall Types>
MMK-AP0074MH-E
MMK-AP0094MH-E
MMK-AP0124MH-E
MMK-AP0074MH-TR
MMK-AP0094MH-TR
MMK-AP0124MH-TR
• This Service Manual describes contents of the new High Wall indoor unit.
For the outdoor unit, refer to the Manual with FILE NO. A10-005, A05-004-1, A05-015.
• The service parts will be supplied by TCTC.
R410A
PRINTED IN JAPAN, Revised on Jul, 2012 ToMo
CONTENTS
PRECAUTION FOR SAFETY ............................................................................ 6
NEW REFRIGERANT (R410A) ....................................................................... 12
1. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ...................................... 14
2. WIRING DIAGRAM ................................................................................... 15
3. PARTS RATING ........................................................................................ 16
4. REFRIGERANTING CYCLE DIAGRAM ................................................... 17
5. CONTROL OUTLINE................................................................................ 18
6. CONFIGURATION OF CONTROL CIRCUIT ............................................ 24
7. APPLIED CONTROL ................................................................................ 31
8. TROUBLESHOOTING .............................................................................. 44
9. INSTALLATION MANUAL ........................................................................ 68
10. HOW TO REPLACE MAIN PARTS ........................................................... 89
11. REPLACEMENT OF SERVICE INDOOR P.C. BOARD ............................ 94
12. EXPLODED VIEWS AND PARTS LIST .................................................... 99
– 2 –
Original instruction
Please read carefully through these instructions that contain important information which complies with the
“Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them.
Generic Denomination: Air Conditioner
Definition of Qualified Installer or Qualified Service Person
The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified
service person.
When any of these jobs is to be done, ask a qualified installer or qualified service person to do them for you.
A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the table below.
Agent
Qualified installer
Qualified service
person
Qualifications and knowledge which the agent must have
• The qualified installer is a person who installs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation.
He or she has been trained to install, maintain, relocate and remove the air conditioners made by
Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by
an individual or individuals who have been trained and is thus thoroughly acquainted with the
knowledge related to these operations.
• The qualified installer who is allowed to do the electrical work involved in installation, relocation
and removal has the qualifications pertaining to this electrical work as stipulated by the local laws
and regulations, and he or she is a person who has been trained in matters relating to electrical
work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has
been instructed in such matters by an individual or individuals who have been trained and is thus
thoroughly acquainted with the knowledge related to this work.
• The qualified installer who is allowed to do the refrigerant handling and piping work involved in
installation, relocation and removal has the qualifications pertaining to this refrigerant handling and
piping work as stipulated by the local laws and regulations, and he or she is a person who has
been trained in matters relating to refrigerant handling and piping work on the air conditioners
made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such
matters by an individual or individuals who have been trained and is thus thoroughly acquainted
with the knowledge related to this work.
• The qualified installer who is allowed to work at heights has been trained in matters relating to
working at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively,
he or she has been instructed in such matters by an individual or individuals who have been
trained and is thus thoroughly acquainted with the knowledge related to this work.
• The qualified service person is a person who installs, repairs, maintains, relocates and removes
the air conditioners made by Toshiba Carrier Corporation.
He or she has been trained to install, repair, maintain, relocate and remove the air conditioners
made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such
operations by an individual or individuals who have been trained and is thus thoroughly acquainted
with the knowledge related to these operations.
• The qualified service person who is allowed to do the electrical work involved in installation, repair,
relocation and removal has the qualifications pertaining to this electrical work as stipulated by the
local laws and regulations, and he or she is a person who has been trained in matters relating to
electrical work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or
she has been instructed in such matters by an individual or individuals who have been trained and
is thus thoroughly acquainted with the knowledge related to this work.
• The qualified service person who is allowed to do the refrigerant handling and piping work involved
in installation, repair, relocation and removal has the qualifications pertaining to this refrigerant
handling and piping work as stipulated by the local laws and regulations, and he or she is a person
who has been trained in matters relating to refrigerant handling and piping work on the air
conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in
such matters by an individual or individuals who have been trained and is thus thoroughly
acquainted with the knowledge related to this work.
• The qualified service person who is allowed to work at heights has been trained in matters relating
to working at heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively,
he or she has been instructed in such matters by an individual or individuals who have been
trained and is thus thoroughly acquainted with the knowledge related to this work.
3
Definition of Protective Gear
When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective
gloves and ‘safety’ work clothing.
In addition to such normal protective gear, wear the protective gear described below when undertaking the
special work detailed in the table below.
Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns,
electric shocks and other injuries.
Work undertaken
All types of work
Electrical-related work
Work done at heights
(50 cm or more)
Transportation of heavy objects
Repair of outdoor unit
The important contents concerned to the safety are described on the product itself and on this Service Manual.
Please read this Service Manual after understanding the described items thoroughly in the following contents
(Indications/Illustrated marks), and keep them.
Protective gloves
‘Safety’ working clothing
Gloves to provide protection for electricians and from heat
Insulating shoes
Clothing to provide protection from electric shock
Helmets for use in industry
Shoes with additional protective toe cap
Gloves to provide protection for electricians and from heat
Protective gear worn
[Explanation of indications]
Indication
Explanation
Indicates contents assumed that an imminent danger causing a death or serious
DANGER
WARNING
CAUTION
∗ Property damage: Enlarged damage concerned to property, furniture, and domestic animal/pet
injury of the repair engineers and the third parties when an incorrect work has
been executed.
Indicates possibilities assumed that a danger causing a death or serious injury of
the repair engineers, the third parties, and the users due to troubles of the
product after work when an incorrect work has been executed.
Indicates contents assumed that an injury or property damage (∗) may be
caused on the repair engineers, the third parties, and the users due to troubles
of the product after work when an incorrect work has been executed.
[Explanation of illustrated marks]
Mark
Indicates prohibited items (Forbidden items to do)
The sentences near an illustrated mark describe the concrete prohibited contents.
Indicates mandatory items (Compulsory items to do)
The sentences near an illustrated mark describe the concrete mandatory contents.
Explanation
Indicates cautions (Including danger/warning)
The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.
4
Warning Indications on the Air Conditioner Unit
[Confirmation of warning label on the main unit]
Confirm that labels are indicated on the specified positions
If removing the label during parts replace, stick it as the original.
Warning indication
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric
power supplies before servicing.
WARNING
Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.
CAUTION
High temperature parts.
You might get burned when removing this panel.
Description
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric power supplies
before servicing.
WARNING
Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.
CAUTION
High temperature parts.
You might get burned when removing this
panel.
CAUTION
Do not touch the aluminum fins of the unit.
Doing so may result in injury.
CAUTION
BURST HAZARD
Open the service valves before the operation,
otherwise there might be the burst.
CAUTION
Do not climb onto the fan guard.
Doing so may result in injury.
CAUTION
Do not touch the aluminum fins of the unit.
Doing so may result in injury.
CAUTION
BURST HAZARD
Open the service valves before the operation,
otherwise there might be the burst.
CAUTION
Do not climb onto the fan guard.
Doing so may result in injury.
5
Precautions for Safety
The manufacturer shall not assume any liability for the damage caused by not observing the description of this
manual.
DANGER
Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit
breaker for both the indoor and outdoor units to the OFF position.
Otherwise, electric shocks may result.
Before opening the intake grille of the indoor unit or 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 intake grille of
the indoor unit or service panel of the outdoor unit and do the work required.
Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit breaker
to the OFF position, and place a “Work in progress” sign on the circuit breaker.
Turn off
breaker.
Electric shock
hazard.
When cleaning the filter or other parts of the indoor 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 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.
When you access inside of the service panel to repair electric parts, wait for about five minutes after
turning off the breaker. Do not start repairing immediately.
Otherwise you may get electric shock by touching terminals of high-voltage capacitors.
Natural discharge of the capacitor takes about five minutes.
Prohibition
.
Stay on
protection.
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.
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.
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical
parts with the electrical parts box cover of one or more of the indoor units and the service panel of the
outdoor unit removed in order to find out exactly where the trouble lies, wear insulated heat-resistant
gloves, insulated boots and insulated work overalls, and take care to avoid touching any live parts.
You may receive an electric shock if you fail to heed this warning.
Only qualified service person (*1) is allowed to do this kind of work.
6
WARNING
General.
Check earth
wires.
Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the
air conditioner by following its instructions.
Only qualified service person (∗1) is allowed to repair the air conditioner.
Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water
leaks and/or other problems.
Do not use any refrigerant different from the one specified for complement or replacement.
Other wise, abnormally high pressure may be generated in the refrigeration cycle, which may result in
a failure or explosion of the product or an injury to your body.
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 transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other
protective clothing.
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.
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.
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.
When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the
procedure in the ladder’s instructions.
Also wear a helmet for use in industry as protective gear to undertake 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.
When executing address setting, test run, or troubleshooting through the checking window on the
electric parts box, put on insulated gloves to provide protection from electric shock. Otherwise you may
receive an electric shock.
Do not touch the aluminum 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 transporting the air conditioner, wear shoes with additional protective toe caps.
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.
Be sure that a heavy unit (10kg or heavier) such as a compressor is carried by two persons.
This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE.
Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the
main unit, otherwise an electric shock is caused when a leak occurs.If the earth wire is not correctly
connected, contact an electric engineer for rework.
After completing the repair or relocation work, check that the ground wires are connected properly.
Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.
Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for tele-
phone wires.
Prohibition of
modification.
Do not modify the products.
Do not also disassemble or modify the parts.
It may cause a fire, electric shock or injury.
7
Use specified
parts.
Do not bring a
child close to
the equipment.
Insulating
measures
No fire
Refrigerant
When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the
specifications given in the Service Manual (or use the parts contained on the parts list in the Service
Manual).
Use of any parts which do not satisfy the required specifications may give rise to electric shocks,
smoking and/ or a fire.
RefrigerantIf, in the course of carrying out repairs, it becomes absolutely necessary to check out the
electrical parts with the electrical parts box cover of one or more of the indoor units and the service
panel of the outdoor unit removed in order to find out exactly where the trouble lies, put a sign in place
so that no-one will approach the work location before proceeding with the work.
Third-party individuals may enter the work site and receive electric shocks if this warning is not heeded.
Connect the cut-off lead wires with crimp contact, etc., put the closed end side upward and then apply
a watercut method, otherwise a leak or production of fire is caused at the users’ side.
When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil that
coats the pipes may otherwise burn. When repairing the refrigerating cycle, take the following measures.
1) Be attentive to fire around the cycle. When using a gas stove, etc., be sure to put out fire before work;
otherwise the oil mixed with refrigerant gas may catch fire.
2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide
poisoning may be caused.
3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the
inflammables.
The refrigerant used by this air conditioner is the R410A.
Check the used refrigerant name and use tools and materials of the parts which match with it.
For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the
outdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changed
from one of the former R22.
For an air conditioner which uses R410A, never use other refrigerant than R410A.
For an air conditioner which uses other refrigerant (R22, etc.), never use R410A.
If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle
and an injury due to breakage may be caused.
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.
Do not charge refrigerant additionally.
If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the
refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the
specified standard amount is charged and an abnormal high pressure is applied to the inside of the
refrigerating cycle resulted in cause of breakage or injury. Therefore if the refrigerant gas leaks, recover
the refrigerant in the air conditioner, execute vacuuming, and then newly recharge the specified
amount of liquid refrigerant. In this time, never charge the refrigerant over the specified amount.
When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than
R410A into the specified refrigerant. If air or others is mixed with the refrigerant, abnormal high
pressure generates in the refrigerating cycle resulted in cause of injury due to breakage.
After installation work, check the refrigerant gas does not leak.
If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan
heater, stove or cocking stove though the refrigerant gas itself is innocuous.
Never recover the refrigerant into the outdoor unit. When the equipment is moved or repaired, be sure
to recover the refrigerant with recovering device. The refrigerant cannot be recovered in the outdoor
unit; otherwise a serious accident such as breakage or injuryis caused.
Assembly/
Wiring
Insulator
check
After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before.
Perform the work so that the cabinet or panel does not catch the inner wires. If incorrect assembly or
incorrect wire connection was done, a disaster such as a leak or fire is caused at user’s side.
After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistance is 1MΩ or more between the charge section and the non-charge metal section (Earth position).
If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.
8
Ventilation
Compulsion
Check after
repair
When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas touches to a fire, poisonous gas generates.
A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage
of oxygen occurs. Be sure to execute ventilation.
When the refrigerant gas leaks, find up the leaked position and repair it surely.
If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten
the service valve, otherwise the refrigerant gas may leak into the room.
The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove
though the refrigerant gas itself is innocuous.
When installing equipment which includes a large amount of charged refrigerant such as a multi air
conditioner in a sub-room, it is necessary that the density does not the limit even if the refrigerant leaks.
If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused.
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.
Nitrogen gas must be used for the airtight test.
The charge hose must be connected in such a way that it is not slack.
For the installation/moving/reinstallation work, follow to the Installation Manual. If an incorrect
installation is done, a trouble of the refrigerating cycle, water leak, electric shock or fire is caused.
Once the repair work has been completed, check for refrigerant leaks, and check the insulation resistance
and water drainage. Then perform a trial run to check that the air conditioner is running properly.
After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock
or injury may be caused. For a check, turn off the power breaker.
After repair work (installation of front panel and cabinet) has finished, execute a test run to check there
is no generation of smoke or abnormal sound. If check is not executed, a fire or an electric shock is
caused. Before test run, install the front panel and cabinet.
Be sure to fix the screws back which have been removed for installation or other purposes.
Do not
operate the
unit with the
valve closed.
Check after
reinstallation
Cooling
check
Check the following matters before a test run after repairing piping.
• Connect the pipes surely and there is no leak of refrigerant.
• The valve is opened.
Running the compressor under condition that the valve closes causes an abnormal high pressure resulted
in damage of the parts of the compressor and etc. and moreover if there is leak of refrigerant at connecting
section of pipes, the air is sucked and causes further abnormal high pressure resulted in burst or 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.
Check the following items after reinstallation.
1) The earth wire is correctly connected.
2) The power cord is not caught in the product.
3) There is no inclination or unsteadiness and the installation is stable.
If check is not executed, a fire, an electric shock or an injury is caused.
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, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an
abnormally high level, and possibly resulting in reputing, injury, etc.
When the service panel of the outdoor unit is to be opened in order for the compressor or the area
around this part to be repaired immediately after the air conditioner has been shut down, set the circuit
breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.
If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipes
and other parts will be very hot to the touch. In addition, before proceeding with the repair work, wear
the kind of insulated heat-resistant gloves designed to protect electricians.
Take care not to get burned by compressor pipes or other parts when checking the cooling cycle while
running the unit as they get heated while running. Be sure to put on gloves providing protection for
electric shock and heat.
When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor, inverter or the
areas around these parts to be repaired immediately after the air conditioner has been shut down, set the
circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel. If
you fail to heed this warning, you will run the risk of burning yourself because the fan motor, reactor, inverter
heat sink and other parts will be very hot to the touch. In addition, before proceeding with the repair work,
wear the kind of insulated heat-resistant gloves designed to protect electricians.
9
Installation
Only a qualified installer (∗1) or qualified service person (*1) is allowed to install the air conditioner.
If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water
leakage, noise and/or vibration may result.
Before starting to install the air conditioner, read carefully through the Installation Manual, and follow its
instructions to install the air conditioner.
Be sure to use the company-specified products for the separately purchased parts. Use of nonspecified products may result in fire, electric shock, water leakage or other failure. Have the installation
performed by a qualified installer.
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.
Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas.
If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.
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.
Install a circuit breaker that meets the specifications in the installation manual and the stipulations in
the local regulations and laws.
Install the circuit breaker where it can be easily accessed by the qualified service person (∗1).
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 place any combustion appliance in a place where it is directly exposed to the wind of air
conditioner, otherwise it may cause imperfect combustion.
Explanations given to user
• 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 to have the repairs done.
Do not set the circuit breaker to the ON position until the repairs are completed.
Relocation
• 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.
• 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, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level,
and possibly resulting in reputing, injury, etc.
(∗1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”
10
SPECIFICATIONS
Model
MMK-AP0074MH-E
MMK-AP0094MH-E
MMK-AP0124MH-E
MMK-AP0074MH-TR
MMK-AP0094MH-TR
MMK-AP0124MH-TR
Under 70 dBA
∗
Sound power level (dBA)
Cooling Heating
Main unit (Ceiling panel)
∗∗
∗∗
∗∗
∗∗
∗∗
∗∗
DECLARATION OF CONFORMITY
Weight (kg)
11
11
11
11
11
11
Manufacturer: Toshiba Carrier (Thailand) Co., Ltd.
144/9 Moo5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi,
Amphur Muang, Pathumthani 12000 Thailand
Authorized Representative/ Nick Ball
TCF holder: Toshiba EMEA Engineering Director
Toshiba Carrier UK Ltd.
Porsham Close, Belliver Industrial Estate,
PLYMOUTH, Devon, PL6 7DB.
United Kingdom
Hereby declares that the machinery described below:
Generic Denomination: Air Conditioner
Model/type: Indoor unit
MMK-AP0074MH-E, MMK-AP0094MH-E. MMK-AP0124MH-E
MMK-AP0074MH-TR, MMK-AP0094MH-TR, MMK-AP0124MH-TR
Commercial name: Super Modular Multi System Air Conditioner
Super Heat Recovery Multi System Air Conditioner
MiNi-Super Modular Multi System Air Conditioner (MiNi-SMMS)
Complies with the provisions of the “Machinery” Directive (Directive 2006/42/EC) and the regulations transposing into national law
Complies with the provisions of the following harmonized standard:
EN 378-2: 2008+A1:2009
NOTE
This declaration becomes invalid if technical or operational modifications are introduced without the
manufacturer’s consent.
11
• New Refrigerant (R410A)
This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.
1. Safety Caution Concerned to New Refrigerant
The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change
of refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former
refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with
new refrigerant during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident. Use the tools and materials exclusive to R410A to
purpose a safe work.
2. Cautions on Installation/Service
(1) Do not mix the other refrigerant or refrigerating oil.
For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of
the former refrigerant in order to prevent mixture of them.
(2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which
are specified for R410A.
(3) In the installation time, use clean pipe materials and work with great attention so that water and others
do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the
clean pipes.
Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)
(4) For the earth protection, use a vacuum pump for air purge.
(5) R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refriger-
ant. (If using gas for charging, composition of the refrigerant changes and then characteristics of the air
conditioner change.)
3. Pipe Materials
For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint
to a minimum.
(1) Copper pipe
<Piping>
The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.
When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe
without seam” and one with bonded oil amount 40mg/10m or less. Also do not use crushed, deformed,
discolored (especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)
<Flare nut>
Use the flare nuts which are attached to the air conditioner unit.
(2) Joint
The flare joint and socket joint are used for joints of the copper pipe.
The joints are rarely used for installation of the air conditioner. However clear impurities when using them.
12
4. Tools
(1) Required Tools for R410A
Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc.
Accordingly, the tools to be used are classified into the following three types.
1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
No.
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
air conditioner installation
R410A
Existence of Whether convennew equipment tional equipment
for R410A can be used
Yes *(Note 1)
Yes *(Note 1)
Ye s N o
Yesa No
Ye s N o
Ye s Ye s
Ye s N o
Ye s N o
(Note 2) No
Conventional air
conditioner installation
Whether new equipment
can be used with
conventional refrigerant
Ye s
*(Note 1)
No
No
Ye s
Ye s
No
Ye s
No
(Note 1) When flaring is carried out for R410A 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 R410A is being currently developed.
General tools (Conventional tools can be used.)
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools.
(1) Vacuum pump
Use vacuum pump by
attaching vacuum pump adapter. (7) Screwdriver (+, –)
(2) Torque wrench (8) Spanner or Monkey wrench
(3) Pipe cutter (9) Hole core drill
(4) Reamer (10) Hexagon wrench (Opposite side 4mm)
(5) Pipe bender (11) Tape measure
(6) Level vial (12) Metal saw
Also prepare the following equipments for other installation method and run check.
(1) Clamp meter (3) IInsulation resistance tester
(2) Thermometer (4) Electroscope
13
1. CONSTRUCTION VIEWS (EXTERNAL VIEWS)
Model: MMK-AP0074MH∗, AP0094MH∗, AP0124MH
Air inlet part
790
Air outlet gril
790
60
275
60
208
48
6
Knockout
54.5
48
60
∗
275
208
54.5
48
208
48
Knockout
275
6
60
Hock for insulation plate
Refrigerant pipe connecting port
Gas side Ø9.5
(Installation space)
790
790
321
208
275
Drain pipe
Refrigerant pipe connecting port
Liquid side Ø6.4
100mm or more
170mm or more
Note : All dimensions are in mm.
170mm or more
*300mm or more
*(For attached Flow Selector unit of
heat recovery model)
14
2. WIRING DIAGRAM
Outdoor unit
BLU
BLU
1
2
1
2
CN40
(BLU)
CN44
1. indicates the terminal block.
Letter at inside indicates the terminal number.
2. A dotted line and broken line indicate the
wiring at site.
3. indicates the control P.C.board
12345
WHI
YEL
YEL
YEL
YEL
23456
(BRW)
123456
CN33
(WHI)
BLK
3
321
WHI
1
CN41
(BLU)
Heat
BLK
DC 15V
exchanger
sensor
(TC1)
BLK
1
3
1
2
3
(BRW)
CN100
DC 0V
DC 12V
Powe r
supply
Heat
exchanger
BLK
BLK
1
1
CN101
DC 7V
circuit
sensor
(TC2)
2
2TF1
(BLU)
2
(GRN)
CN103
WHI BLK
Heat
exchanger
sensor
BLK
BLK
1
2
1
2
(YEL)
CN102
2
1
(TCJ)
2
1
Thermo
sensor
BLK
BLK
1
1
CN104
CN80
CN60
CN1(WHI)
Wierd remote
(TA)
2
2
(WHI)
(GRN)
(WHI)
controller
(Sold Separately)
PNL/EMG
Option
Louver
motor
Fan
motor
Pulse motor
valve
F
BLK
BROWN
RED
WHITE
YELLOW
BLUE
BLACK
GRAY
YEL
BLU
BLK
PINK
PNK
GRY
:::::::::::
WHI
RED
BRW
Color identification
RED
BLK
WHI
YEL
BLU
WHI
YEL
ORN
BLU
BRW
RED
HBS
S
ORANGE
GREEN &
YELLOW
ORN
GRN & YEL
13456
13456
12345
123456
6
54321 21
CN22
GREEN
GRN
(WHI)
CN210
CN82
(BLU)
CN50
(WHI)
F301 Fuse
T3. 15A 250V~
1
1
WHI
RED
65432121 654321 321
654321
HA
4321
CN61
(MCC-1510)
BLU
10
RED
987654321109874321
ORN
GRY
54321
54321
1 3
1 3
CN309
(YEL)
GRN & YEL
YEL
BRW
WHI
PNK
GRY
YEL
BRW
WHI
WHI
RED
GRN & YEL
CN213 (WHI)
CN81 (BLK)
3
5
3
CN67
(BLK)
(YEL)
Control P.C.board for indoor unit
CN32
(WHI)
Fan Drive
123456
234567
78
9
1011
(MCC-861)
and indication parts
Infrared rays receive
Flow selector Unit
(Sold sepalately)
9
54321
Heat exchanger
15
220V 60Hz
GRN & YEL
Single phase
Power Supply
220-240V 50Hz
3. PARTS RATING
3-1. Parts Rating
No.
1
Fan motor (for indoor)
2
Grille motor
3
Thermo. Sensor (TA sensor)
4
Heat exchanger sensor (TC1 sensor)
5
Heat exchanger sensor (TC2 sensor)
6
Heat exchanger sensor (TCJ sensor)
Parts Name
3-2. Name of Each Part
Type
ICF-340-30
MF-340-30
MP24Z
318mm
Ø4, 600mm
Ø6, 800mm
Ø6, 800mm
Specications
Output (Rated) 30W, 280-340V DC
10kΩ at 25°C
10kΩ at 25°C
10kΩ at 25°C
10kΩ at 25°C
Air inlet grille
Air in the room is sucked from here.
Air filter
Removes dust and trash.
(Air filter is provided in the air inlet grille.)
Earth screw
Earth screws are provided in the electric parts box.
Air outlet/Air outlet flap
Change the direction of the air to be
discharged according to cool/heat mode.
16
4. REFRIGERANTING CYCLE DIAGRAM
Gas sideLiquid side
Strainer
Pulse Motor
Valve (PMV)
Sensor
(TC2)
Capillary tube
Strainer
Sensor
(TCJ)
Air heat exchanger
at indoor side
Fan
Sensor
(TA)
M
Sensor
(TC1)
Fan motor
Functional part name
Pulse Motor Valve PMV
Temp. sensor 1. TA
2. TC1
3. TC2
4. TCJ
Functional outline
(Connector CN082 (6P): Blue)
1) Controls super heat in cooling operation
2) Controls under cool in heating operation
3) Recovers refrigerant oil in cooling operation
4) Recovers refrigerant oil in heating operation
(Connector CN104 (2P): White)
1) Detects indoor suction temperature
(Connector CN100 (3P): Brown)
1) Controls PMV super heat in cooling operation
(Connector CN101 (2P): Blue)
1) Controls PMV under cool in heating operation
(Connector CN102 (2P): Yellow)
1) Controls PMV super heat in cooling operation
17
5. CONTROL OUTLINE
5-1. Indoor Unit Control Specifications
No.
1
2
Item
Power supply
is reset.
Operation
select
Outline of specifications
(1) Distinction of outdoor unit
When the power supply is reset, the outdoor units are
distinguished, and control is exchanged according to the
distinctive results.
(2) Check code clear
When the power supply is reset, the check code is also reset
once. If an abnormal status which the check code appears
after Start/Stop button of the remote controller has been
pushed continues, the check code is displayed again on the
remote controller.
(1) Based upon the operation select command from the remote controller or central controller, the
operation mode is se-lected.
Remote controller command
STOP
FAN
COOL
DRY
HEAT
AUTO
(2) Operation commend permission mode
Neither AUTO mode of the standard model nor HEAT mode of Cooling-only model can be
selected. When a wireless remote control is used, the mode is notified by the receiving sound
Pi, Pi (Twice) and alternative flashing of “
To release the alternative flashing, change the mode on the wireless remote controller.
Cooling or HEAT operation mode is automatically selected
by Ta and Ts and the unit starts operation.
” and “ ”.
Control outline
Stops air conditioner.
Fan operation
Cooling operation
Dry operation
Heating operation
• Judgment of outdoor unit
• Exchange of cooling-only
unit
• Exchange of standard
model with the flex model
Remarks
3
Room temp.
control
4
Automatic
capacity
control
5
Air volume
control
(1) Adjustment range Set temperature on remote controller (°C)
In cooling/drying
Wired type
Wireless type
(2) From the item code 06, the setup temperature in heating
operation can be corrected.
Setup data
Setup temp. correction
Setup at shipment
Setup data
(1) Based upon difference between Ta and Ts, the operation
frequency of the outdoor unit varies.
(1) By the command from the remote controller, “HIGH (HH)”,
“MED (H)”, or “LOW (L)” “AUTO” operation is executed.
For the wireless remote controller type, “HH”, “H+”, “H”, “L+”,
“L”, or “AUTO” operation is executed.
(2) While air speed is in AUTO mode, the air speed is changed
according to the difference between Ta and Ts.
18 to 29°C
17 to 30°C
0246
+0°C +2°C +4°C +6°C
2
In heating
18 to 29°C
17 to 30°C
Heating suction temperature
shift
Ta: Room temperature
Ts: Setup temperature
HH > H+ > H >
L+ > L > LL
18
No.
6
Prevention of
cold air
discharge
7
Freeze prevention control
(Low temp.
release)
Item
Outline of specifications
(1) In heating operation, the upper limit of the fan tap is set by
one with higher temperature of TC2 sensor and TCJ sensor.
• When B zone has continued for 6 minutes, the operation
shifts to C zone.
• In defrost time, the control point is set to +6°C.
(˚C)
36
34
32
30
D
C
A zone: OFF
B zone:
Over 30˚C, below 32˚C, UL
C zone:
E
Over 32˚C, below 24˚C, L
D zone:
Over 24˚C, below 36˚C, H
E zone: HH
24
20
B
A
(1) In cooling operation, the air conditioner operates as de-
scribed below based upon temp. detected by TC1, TC2 and
TCJ sensors.
To prevent the heat exchanger from freezing, the operation
stops.
• When “J” zone is detected for 5 minutes, the forced
thermo is OFF.
• In “K” zone, the timer count is interrupted, and held.
• When “1 ” zone is detected, the timer is cleared and the
operation returns to the normal operation.
• When the forced thermo-OFF became S0 with continuation of “J” zone, operation of the the indoor fan in LOW (L)
mode until it reaches the “1 ” zone.
It is reset when the following conditions are satisfied.
Reset conditions
1) TC1
> 12°C and TC2 > 12°C and TCJ > 12°C
2) 20 minutes passed after stop.
Remarks
• In D and E zones, priority
is given to remote controller air speed setup.
• In A and B zones, “
” is
displayed.
(˚C)
P1
Q1
I
K
J
a
P1
10°C (5°C) 10°C
Q1
0°C –14°C
(2) In cooling operation, the air conditioner operates as
described below based upon temp. detected by TC2 and
TCJ sensors.
• When “M” zone is detected for 45 minutes, the forced
thermo is OFF.
• In “N” zone, the timer count is interrupted and held.
• When shifting to “M” zone again, the timer count restarts
and continues.
• If “L” zone is detected, the timer is cleared and the
operation returns to normal operation.
Reset conditions
TC1 TC2, TCJ
>
1) TC1
12°C and TC2 > 12°C and TCJ > 12°C
2) 20 minutes passed after stop.
(˚C)
P2
Q2
L
N
M
P2
Q2
TC2, TCJ
–2.0°C
5°C
19
No.
8
Cooling oil
(refrigerant)
recovery control
9
Heating refrigerant (oil) recovery
control
Item
Outline of specifications
While the outdoor unit is recovering cooling oil (refrigerant), the
indoor units perform the following control tasks:
[common for operational (cooling thermo ON/thermo OFF/FAN),
as well as nonoperational indoor units]
(1) Open the indoor PMV to a certain degree.
(2) Engage in recovery control for a specified period of time
and return to normal cooling operation at the end of this
period upon terminating the control.
While the outdoor unit is recovering heating refrigerant (oil), the
indoor units perform the following control tasks:
(1) Open the indoor PMV to a certain degree.
(2) Control the indoor fan according to the operation mode.
[Indoor units operating in heating thermo ON/OFF state]
Let the indoor fan continue operating, but turn it off if the
temperature of the indoor heat exchanger drops.
[Indoor units operating in FAN mode]
Turn off the indoor fan and display “HEATING STANDBY
” on the remote controller.
[Non-operational indoor units]
Keep the indoor fan turned off.
(3) Terminate the recovery operation depending on the TC2
temperature reading. The timing of termination is determined by each indoor unit.
Remarks
• Recovery operation
normally takes place
roughly every 2 hours.
• The opening position of
the indoor PMV
depending on the type
and capacity of the
indoor unit.
• Recovery operation
normally takes place
roughly every hour.
• The opening position of
the indoor PMV
depending on the type
and capacity of the
indoor unit.
10
Short intermittent
operation
compensation
control
11
Elimination of
remaining heat
12
Flap control
(1) For 5 minutes after the operation has started, the operation
is continued even if entering thermostat-OFF condition.
(2) However, Cooling/Heating exchange and the system
protective control precede and thermostat is OFF.
(1) When the air conditioner stops in the “HEAT” mode, drive
the indoor fan with “LOW” mode for approx. 30 seconds.
(1) Flap position setup (Wired type)
• The flap position can be set up in the following operation
range.
In cooling/dry operation In heating/fan operation
• In group operation, the flap positions can be set up
collectively or individually.
(2) Swing setup
• The swinging position can be moved in the following
operation range.
All modes
• In group operation, the swinging positions can be set up
collectively or individually.
(3) Fix set up (Wireless type)
Keep pressing or pressing briefly the FIX button to move
the flap in the desired direction.
Operating angle of flap will be different during cooling, dry
and heating operation.
(4) When the unit stops, the flap automatically closes.
(5) While the heating operation is ready, the flap automatically
moves upward.
20
No.
Item
Outline of specifications
Remarks
13
Filter sign display
(None in wireless type)
∗ Provided in the
separately laid type
TCB-AX21E2.
14 Operation standby
Heating standby
(1) The operation time of the indoor fan is integrated and
stored in memory, and the filter exchange signal is
sent to the remote controller to display on the remote
controller LCD after the specified time. (150H)
(2) When the filter reset signal is received form the remote
controller, time of the integrated timer is cleared. In this
time, if the specified time has passed, the measured
time is reset and LCD display disappears.
<Operation standby> .. Displayed on wired remote controller
(1) When any of the DN codes listed below is displayed
• “P05” - Detection of an open phase in the power
supply wiring
• “P10” - Detection of indoor flooding in at least one
indoor unit
• “L30” - Detection of an interlock alarm in at least one
indoor unit
(2) Forced thermo OFF
• “COOL/DRY” operation is unavailable because at
least one indoor unit is operating in “HEAT” mode.
• “HEAT” operation is unavailable because at least one
indoor unit is operating in “COOL/DRY” mode under
priority cooling setting (bit 1 of SW11 on outdoor I/F
P.C. board ON).
(3) All indoor units not able to engage in any of the above
operations stand by in thermo OFF state.
(4) The indoor fan has been turned off because the
system is engaged in a heat refrigerant (oil) recovery
operation.
• “OPERATION STANDBY
” displayed
No display provided on
wireless remote controller
15 Selection of central
control mode
Operation via
TCC-Link
central
control
Individual
Central 1
Central 2
Central 3
Central 4
Start/stop
selection
¡
×
×
¡
¡
<Heating standby> ...... Displayed on wired remote controller
(1) Normal thermo OFF
• During heating, the indoor unit goes thermo OFF as
the heating temperature setting is reached.
(2) During heating, the fan rotates at a breeze speed
(UL or lower) or remains stationary to prevent cold air
from being discharged (including defrosting operation).
(3) Forced thermo OFF
• “HEAT” operation is unavailable because at least one
indoor unit is operating in “COOL/DRY” mode under
priority cooling setting (bit 1 of SW11 on outdoor I/F
P.C. board ON).
(1) The range of operations that can be performed via an
indoor unit remote controller can be determined
through the setting of the central controller.
(2) Setting details
TCC-Link central control
Operation via RBC-AMT32E
Operation
mode
selection
¡
¡
×
×
×
Timer
setting
¡
×
×
¡
¡
Temperature
setting
¡
¡
×
×
¡
Fan
speed
setting
¡
¡
¡
¡
¡
Air flow
direction
setting
¡
¡
¡
¡
¡
RBC-
AMT32E
display
“CENTRAL
CONTROL IN
PROGRESS”
• “HEATING STANDBY
displayed
• In the case of a wired
remote controller, “CENTRAL CONTROL IN
PROGRESS
displayed (lit up) while in
central control mode.
• The display blinks when a
control function
inaccessible to a remote
controller is chosen.
• A wireless remote
controller has the same
set of control functions,
although there is no
display.
When a control operation
is performed via a wireless
remote controller while in
central control mode, a
peep sound alert (5 times)
is provided.
” is
”
21
No.
16
Hi POWER
operation
(Wireless remote
control specific
operations)
17
ECO timer
operation
(Wireless remote
control specific
operations)
Item
Outline of specifications
When you press the Hi POWER button during cooling,
heating or A operation, the air conditioner will start the
following operation.
• Cooling operation
Performs the cooling operation at 1°C lower than the setting
temperature.
Only when the fan speed before the Hi POWER operation is
not high, the fan speed will be increased.
• Heating operation
Performs the heating operation at 2°C higher than the
setting temperature.
Only when the fan speed before the Hi POWER operation is
not high, the fan speed will be increased.
When you press the ECO button during cooling, heating or A
operation, the air conditioner will start the following operation.
The fan speed display will indicate AUTO and low speed will
be used.
• Cooling operation
In the operation suppression zone, where capacity is kept to
the minimum, overcooling is prevented by raising the
temperature setting by 1°C after 1 hour and by 2°C after 2
hours of operation.
The room temperature is thus regulated between the
operation suppression zone and the set temperature.
Remarks
• Heating operation
In the operation suppression zone, where capacity is kept to
the minimum, overheating is prevented by lowering the
temperature setting by 1°C after 1 hour and by 2°C after 2
hours of operation.
The room temperature is thus regulated between the set
temperature and the operation suppression zone.
Operation suppression zone
1˚C
1 hour
2 hours
Operation starts
Set temperature
1˚C
1 hour
Operation starts
2 hours
2˚C
Set temperature
2˚C
Operation
suppression zone
22
No.
SAVE
18
MEMORY operation
Item
Outline of specifications
Start the air conditioner in the operation mode which
you want the remote control to memorize.
(1) Press this button briefly to standby memorizing the
setting.
All the icons currently displayed except for the clock
display and mark flashes.
Remarks
19
PRESET operation
(2) Press and hold the MEMO button for more than 3
seconds while the display flashes.
The mark is indicated and the setting is memorized.
• If you do not press the MEMO button within 3
seconds or if you press another button, the
MEMORY setting is cancelled.
• Operation modes which can be memorized with
the MEMO button are MODE, Temperature, FAN,
TIMER and Hi POWER.
To operate the air conditioner with the setting memorized by the MEMO button.
(1) Press the PRESET button. The setting memorized
with the MEMO button will be indicated and the air
conditioner operates with regards to the setting.
• The lamp (green) on the display panel of the
indoor unit goes on, and operation starts after
approximately 3 minutes.
• Initial setting:
MODE : AUTO
Temperature : 22
(1)
(2)
(1)
START/STOP
FAN MODE
SWING
TIMER
FIX
ON
OFF SET CLR
FILTER
START/STOP
FAN MODE
G
SWIN
TIMER
FIX
ON
OFF SET CLR
FILTER
ECO
ECO
PRESET
AUTO
Hi-POWER
MEMO
CLOCK CHECKRESET
PRESET
AUTO
Hi-POWER
MEMO
CLOCK CHECKRESET
20 DC motor 1) When the fan stator, positioning is performed for the
starter and the rotor. (Vibrate slightly)
2) DC motor operates according to the command from
the indoor controller.
(Note)
If the fan lock was detected, the operation of the indoor
unit stops and the error is displayed.
21 Save operation 1) The save operation starts when
button on the
remotecontroller is turned on.
2) While the save operation is performed,
segment
goes on the screen of the wired remote controller.
3) The request capacity ratio is restricted to approx.
75% during save operation.
4) If the save operation was validated, the contents are
held during the operation stop, the operation mode
change and the resetting of power supply. Therefore
the operation at the next time also will be activated
with “Save operation is valid”
23
Check code [P12]
6. CONFIGURATION OF CONTROL CIRCUIT
6-1. Indoor Controller Block Diagram
6-1-1. Case of Main (Sub) Remote Controller Connected
Max. 8 units are connectable.
*1 In group connection, mount the
central control remote controller to
group header unit.
*2 Connection of weekly timer to sub
remote controller is unavailable.
Function setup
Key switch
LCD
driver
LCD
Display
Central remote controller
Function setup
Key switch
part
LCD
Wired (Simple)
Display
master remote controller
(Up to 2 sets)
CPU
CN2
Display
CPU
CN1
part
LED
Secondary
DC5V
Powe r
Powe r
DC5V
Remote
controller
battery
circuit
circuit
circuit
communication
A B
A B
2
*
EEPROM
B
A
Remote
controller
communication
DC20V
circuit
DC12V
TC sensor
TA sensor
DC5V
Same
as left
Same
as left
TCJ sensor
CPU
H8/3039
DriverDriver
HA
Outside
output
Remote
A/B setup
controller
BUS
circuit
communication
AC
circuit
signal input
synchronous
Start
Alarm
Ready
Thermostat ON
1 23
1 23
FAN
HEAT
COOL
Fan motor
control circuit
unit
Outdoor
unit
Outdoor
L N U1 U2
U1 U2
Outdoor unit
Power supply
1Ø, 220V, 60Hz
1Ø, 220 - 240V, 50Hz
Main P.C. board (MCC-1510)
Indoor unit
#1
24
(MCC-819)
Sensor display P.C. board
LED
Sensor part
Louver
motor
circuit
Powe r
Indoor
fan motor
DC280V
6-1-2. Case of Wireless Remote Controller Kit Connected
Max. 8 units are connectable.
*1 In group connection, mount the
central control remote controller to
group header unit.
A B
A B
EEPROM
B
circuit
A
Remote
controller
communication
TC sensor
TA sensor
Same
as left
Same
as left
TCJ sensor
CPU
H8/3039
DriverDriver
HA
Outside
output
Remote
A/B setup
controller
circuit
receive
Serial send/
AC
circuit
signal input
synchronous
Start
Alarm
Ready
Thermostat ON
1 23
1 23
FAN
HEAT
COOL
unit
Outdoor
unit
Outdoor
LN U2U1
U1 U2
Outdoor unit
Power supply
1Ø, 220V, 60Hz
1Ø, 220 - 240V, 50Hz
Main P.C. board (MCC-1510)
Indoor unit
#1
DC20V
DC12V
DC5V
(MCC-819)
Sensor display P.C. board
LED
Sensor part
Louver
motor
25
Fan motor
control circuit
circuit
Powe r
DC280V
Indoor
fan motor
6-2. Indoor P.C. Board
MCC-1510
HA (T10)
CN61, DC 12V
Option output
CN60, DC 12V
CHK
CN71, DC 5V
DISP
CN72, DC 5V
Outside error input
CN80, DC 12V
EXCT
CN73, DC 5V
Remote controller
power LED
D203
TCJ sensor
CN102, DC 5V
TC sensor
CN101, DC 5V
Microcomputer operation LED
D02
EEPROM
IC10
Inter-unit wire
CN67, AC 200V
Option power supply
CN309, AC 200V
Central control
CN40, DC ± 5V
TA sensor
CN104, DC 5V
Remote controller
CN41, DC 20V
Fan drive
CN32, DC 12V
Louver
CN33, DC 20V
DC fan input/output
CN210
Terminator resistor provided/not provided
Remote controller A/B switch
SW01
Display output/Wireless sensor
CN213, DC 5V
26
Wall-Type P.C. Board Optional Switch/Connector Specifications
Function
Terminator resistor
provided/Not provided
Remote controller A/B
Fan output CN32
HA CN61
Connector
No.
SW01
Pin
No.
OFF: No terminator resistor,
Bit 1
ON: Terminator resistor provided
OFF: Remote controller A
Bit 2
ON: Remote controller B
1 DC12V
2 Output
1 Start/Stop input
2 0V (COM)
3 Handy prohibition input
4 Operation output ON during operation (Answer back of HA)
5 DC12V (COM)
6 Alarm output ON during output of alarm
1 DC12V (COM)
2 Defrost output ON during defrosting of outdoor unit
3 Thermo-ON output ON when Real thermo. ON (Comp. ON)
Specifications Remarks
Setup at shipment OFF: No terminator resistor.
Only 1 unit is ON during central control by custom only.
Setup at shipment OFF: Remote controller A
Setup at shipment: Linked operation of ON with operation of
indoor unit and OFF with stop
* The setup of single operation by FAN button on remote
controller is executed from remote controller. (DN = 31)
HA Start/Stop input (J01: Provided/Not provided =
Pulse (At shipment from factory)/Static input switch)
Operation stop of handy remote controller is permitted /
prohibited by input.
Optional output CN60
Outside error input CN80
CHK
CN71
Operation check
DISP
CN72
Display mode
CN73
Demand
4 Cooling output
5 Heating output
6 Fan output ON when indoor fan is ON
1 DC12V (COM)
2 DC12V (COM)
3 Filter/Option/Outside error input
1 Check mode input
2 0V
1 Display mode input
2 0V
1 Demand input EXCT
2 0V
ON when operation mode is cooling line
(Cool, Dry, Cooing/Heating AUTO cooling)
ON when operation mode is heating line
(Heat, Cooling/Heating AUTO heating)
At shipment from factory, the error code “L30” generates and
optional error input to stop operation forcedly (DN:2A = 1) is
controlled (Display of protection for devices attached to outside)
by setup of outside error input (DN:2A = 2) for 1 minute.
* Optional error input control is set up on the remote
controller.
This check is used for operation check of indoor unit.
(The specified operation such as indoor fan “H”, drain pump
ON, etc. is executed without communication with outdoor
unit or remote controller.)
Display mode, communication is enabled by indoor unit and
remote controller only.
(When power supply is turned on.)
Timer short (Usual)
Indoor unit forced thermo-OFF operation
27
ON / OFF
SET
T
ST
T
CL
SAVE
S
X
E
U
R
6-3. Functions at test run
n Cooling/Heating test run check
The test run for cooling/heating can be performed from either indoor remote controller or outdoor interface P.C.
board.
1. Start/Finish operation of test run
¤ Test run from indoor remote controller
Wired remote controller: Refer to the below item of “Test run” of the wired remote controller.
Wireless remote controller: Refer to the next page item of “Test run” of the wireless remote controller.
u In case of wired remote controller
<RBC-AMT32E> <RBC-AMS41E>
1,
5
Procedure
1
2
3
2,
4
TIMER SE
MOD
3
RESE
TE
WING/FI
NIT LOUVE
1,
5
Operation contents
Push [TEST] button for 4 seconds or more.
[TEST] is displayed at the display part and
the mode enters in TEST mode.
Push [ON/OFF] button.
Change the mode from [COOL] to [HEAT] using [MODE] button.
• Do not use [MODE] button for other mode except
[COOL]/[HEAT] modes.
• The temperature cannot be adjusted during test run.
• The error detection is performed as usual.
TEMP.
FILTER UP/DN
DAY
PROGRAM
TEST
FLT.RESET
SCHEDULE
TIME SAVE
SET CL
FAN
SWING/FIX
TEST
TEST
ON / OFF
MODE
VENT
UNIT
2,
4
3
LOUVER
4
(Display on the display part is same to that in Procedure
1 .)
Push [TEST] button to clear the TEST mode.
After test run, push [ON/OFF] button to stop the operation.
5
([TEST] display in the display part disappears and
status becomes the normal stop status.)
Note) The test run returns to the normal operation after 60 minutes.
28
u In case of wireless remote controller
REQUIREMENT
1. For the operation procedure, be sure to follow the matter.
2. Finish the forced cooling operation in a short time because it applies excessive strength to the air conditioner.
3. A test operation of forced heating is unavailable. Perform a test operation by heating operation using the
switches of the remote controller.
However heating operation may be not carried out according to the temperature conditions.
• Check wiring/piping of indoor and outdoor units
1. Open the front panel.
2. When pushing “TEMPORARY” button for 10 seconds or more, “Pi!” sound is heard and the operation
changes to a forced cooling operation. After approx. 3 minutes, a cooling operation starts forcedly.
Check cool air starts blowing. If the operation does not start, check wiring again.
3. To stop a test operation, push “TEMPORARY” button once again (Approx. 1 second).
The up/down air flow adjusting plate closes and the operation stops.
• Check transmission of remote controller
1. Push “START/STOP” button of the remote controller to check an operation can also start by the remote
controller.
• When pushing “TEMPORARY” button once (For 1 second), the operation changes to automatic operation.
For a forced cooling operation, keep the “TEMPORARY” button pushed over 10 seconds.
• “Cooling” operation by the remote controller may be unavailable according to the temperature conditions.
Check wiring/piping of the indoor and outdoor units in forced cooling operation.
TEMPORARY button
TEMPORARY button
29
n Check function for operation of indoor unit (Functions at indoor unit side)
This function is provided to check the operation of the indoor unit singly without communication with the remote
controller or the outdoor unit. This function can be used regardless of operation or stop of the system.
However, if using this function for a long time, a trouble of the equipment may be caused. Limit using this
function within several minutes.
[How to operate]
1) Short-circuit CHK pin (CN71 on the indoor P.C. board).
The operation mode differs according to the indoor unit status in that time.
Normal time: Both float SW and fan motor are normal.
Abnormal time: Either one of float SW or fan motor is abnormal.
2) Restricted to the normal time, if short-circuiting DISP pin (CN72 on the indoor P.C. board) in addition to
short-circuit of CHK pin (CN71 on the indoor P.C. board), the minimum opening degree (30pls) can be set
to the indoor PMV only.
When open DISP pin, the maximum opening degree (1500pls) can be obtained again.
[How to clear]
Open CHK pin. While the system is operating, it stops once but automatically returns to operation after
several minutes.
Short-circuit of CHK pin
Fan motor
Indoor PMV (∗)
Louver
Drain pump
Communication
P.C. board LED
Normal time
DISP pin open DISP pin short circuit
(H) (H) Stop
Max. opening degree (1500pls)
Horizontal Horizontal Immediate stop
ON ON ON
All ignored All ignored All ignored
Lights Lights Flashes
Min. opening degree (30pls) Min. opening degree (30pls)
Abnormal time
• To exchange the indoor PMV coil, set the indoor PMV to Max. opening degree.
• For the detailed positions of CHK pin (CN71 on indoor P.C. board) and DISP pin (CN72 on indoor P.C. board),
refer to the indoor P.C. board MCC-1510.
30
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