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 10 

7

  Notes on operations and performance

 

Check before operation

•  Turn on the power switch at least 12 hours before 

starting operation.

•  Make sure the earth wire is securely connected. 
•  Make sure the air 

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 lter is attached to the indoor unit.

 

Defrosting during heating

•  If frost falls on the outdoor unit during heating, 

defrosting is automatically performed 
(for approximately 2 - 10 minutes) to increase 
the heating effect.

•  The fan of the indoor unit is stopped during 

defrosting. 

 

3-minute pretection

The outdoor unit will not operate for approximately 
3 minutes after the air conditioner has been 
immediately restarted after stopping, or the power 
switch has been turned on. This is to protect the 
system

 

Power failure

•  In the case of a power failure, all operations stop.
•  To resume operations, push the ON/OFF button.

 

Protective device 
(High pressure switch)

The high pressure switch stops the air conditioner 
automatically when excessive load is applied to the air 
conditioner. 
If the protective device activates, the unit’s running 
stops and the operation lamp blinks. 
When the protective device activates, the   indicator 
and the check code are displayed on the remote 
controller. 
The protective device may activate in the following 
cases:

During cooling

•  When the air intake or air discharge of the outdoor 

unit is blocked.

•  When strong wind blows continuously against the air 

discharge of the outdoor unit. 

During heating (for heat-pump model only)

•  When dust or dirt is excessively adhered to the air 

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 lter of the indoor unit.

•  When the air discharge of the indoor unit is blocked.

NOTE

When the protective device activates, turn off the 
power switch, remove the cause, and then restart 
running.

 

Cooling / Heating operations

Each unit can be controlled individually. However, 
indoor units connected to the same outdoor unit cannot 
perform cooling and heating simultaneously. 
When you attempt simultaneous operation, indoor 
units performing cooling are stopped, and the running 
preparation indicator 

 is displayed on the remote 

controller. 
An indoor unit performing heating continues running. 
When you attempt an operation without the con

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 gured 

settings, the running preparation indicator 

 is 

displayed on the remote controller and operation stops. 
If operation is 

fi

 xed to cooling or heating by the air 

conditioner administrator, only the con

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 gured settings 

apply to the operation.

 

Characteristics of heating

When the outside temperature increases, the outdoor 
unit may stop.

8

 Maintenance

 WARNING

For daily maintenance including Air Filter cleaning, make sure to ask the quali

fi

 ed service person 

particularly following models as the maintenance requires high-place work;

 CAUTION

Do not push buttons with wet hands.

Doing so may result in electric shock.

Cleaning the air 

fi

 lters

• Ask quali

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 ed service person to clean the 

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 lters for the models listed in the warning on the top of this chapter.

• Clogged 

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 lters may lower the cooling and heating performance.

 

Long life pre

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 lter

Remove dust with a vacuum cleaner or rinse it off 
with water.

•  If excessively dirty, it can be cleaned effectively by 

washing it with a soft brush and neutral detergent. 

•  After washing with water, drain off the water and dry 

it in the shade.

REQUIREMENT

•  Do not wash with water that is over 50°C.

This may cause discoloration or deformation.

•  Do not expose to 

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 re. Doing so could cause a 

fi

 re.

 

High-ef

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 ciency 

fi

 lter

Replace it when it is time for replacement. 

When cleaning the long life pre

fi

 lter, check the dust 

collecting status and the reduction in air volume for the 
high-ef

fi

 ciency 

fi

 lter, then replace the pre

fi

 lter when it 

is time for replacement (approximately 2500 hours of 
operation is recommended). 
Note that the high-ef

fi

 ciency 

fi

 lter cannot be washed 

with water and reused. 
However, the lifetime of the high-ef

fi

 ciency 

fi

 lter may 

be shortened depending on the intake air condition.

19-EN

20-EN

Summary of Contents for MMD-UP0721HFP-E1

Page 1: ...ommercial use R410A AIR CONDITIONER MULTI TYPE Owner s Manual Indoor Unit Model name Fresh Air Intake Indoor Unit MMD UP0721HFP E1 MMD UP0961HFP E1 MMD UP1121HFP E1 MMD UP1281HFP E1 Owner s Manual 1 English ...

Page 2: ...vironmentally friendly refrigerant According to IEC 60335 1 This appliance is not intended for use by person including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure that they do no...

Page 3: ...rations 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 alternativel...

Page 4: ...e packing cartons for storage or transportation heed the precautions written on the packing cartons Failure to heed the precautions may cause the stack to collapse You shall ensure that the air conditioner is transported in stable condition If you find any part of the product broken contact your dealer Installation Only a qualified installer 1 or qualified service person 1 is allowed to carry out ...

Page 5: ...nd result in injury 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 When the air conditioner is operated with a combustion appliance in the same place be careful of ventilation to let fresh air enter the room Poor ventilation causes oxygen shortage When the air conditioner is used in a closed r...

Page 6: ... injury Do not leave flammable sprays or other flammable materials near the air conditioner and do not spray flammable aerosol directly to the air conditioner They may catch fire 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...

Page 7: ...as the fan is rotating at high speed inside the unit Ask for cleaning of the air conditioner to be performed by the dealer Cleaning the air conditioner in an improper manner may cause damage to plastic parts insulation failure of electric parts etc and result in a malfunction In the worst case it may result in water leakage electric shock smoke emission and fire Do not put a water container such a...

Page 8: ...aker is thrown or some other occurrence 4 Service indicator Displayed while the protective device works or a check occurs 5 Test run indicator Displayed during test run 6 Temperature setting indicator The selected set temperature is displayed 7 Fan speed indicator Indicates the selected fan speed Auto Low Low Med Med High Fix 8 OFF timer indicator When a trouble occurs trouble code is displayed 9 ...

Page 9: ...n ON OFF button Heat Cool Fan Auto Low Low Med Med High Operation mode and function COOL Cools the fresh air and sends it into the room HEAT Heats the fresh air and sends it into the room FAN Sends the fresh air as it is The fresh air intake unit controls temperature of the supply air so that it is close to the setup temperature of the remote controller However temperature of the supply air may no...

Page 10: ...arge amount of oil droplets including machine oil or vapors Salty areas near oceans etc Hot springs emitting sulfidizing gas etc Heavily acidic or alkaline places Special maintenance or parts are required for use in the above places For details contact the dealer where you purchased the product Leave an enough space around the air intake and discharge of the outdoor unit so that the ventilation is...

Page 11: ...ling and heating simultaneously When you attempt simultaneous operation indoor units performing cooling are stopped and the running preparation indicator is displayed on the remote controller An indoor unit performing heating continues running When you attempt an operation without the configured settings the running preparation indicator is displayed on the remote controller and operation stops If...

Page 12: ...eard Sound is generated when the expansion valve operates when power has been turned on LCD blurs when it is touched LCD may temporarily blur by static electricity Check again Stops automatically Is the timer OFF Does not operate Is it a power failure Is the power switch turned off Is the power fuse or breaker blown Has the protective device operated The operation lamp goes on Is the timer ON The ...

Page 13: ...en entered If Service check is displayed the mode enters in the troubleshooting history mode 01 Order of troubleshooting history appears in the temperature indicator The OFF timer indicator alternately shows the check code and the indoor Unit No in which the problem occurred 2 Each time the setting button is pushed the recorded troubleshooting history is displayed in sequence The troubleshooting h...

Page 14: ...0721HFP E1 MMD UP0961HFP E1 MMD UP1121HFP E1 MMD UP1281HFP E1 Commercial name Super Modular Multi System Air Conditioner Super Heat Recovery Multi System Air Conditioner Mini Super Modular Multi System Air Conditioner MiNi SMMS series Complies with the provisions of the Machinery Directive Directive 2006 42 EC and the regulations transposing into national law Declaration of incorporation of partly...

Page 15: ...1116950290 144 9 Moo 5 Bangkadi Industrial Park Tivanon Road Tambol Bangkadi Amphur Muang Pathumthani 12000 Thailand ...

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