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R32 or R410A AIR CONDITIONER (MULTI TYPE) Owner’s Manual For commercial use Indoor Unit Model name: <Fresh Air Intake Indoor Unit> MMD-UP0481HFP-E MMD-UP0721HFP-E1 MMD-UP0961HFP-E1 MMD-UP1121HFP-E1 MMD-UP1281HFP-E1 Owner’s Manual English...
─ 1 ─ Contents Original instruction Thank you very much for purchasing TOSHIBA Air Conditioner. Please read this owner’s manual carefully before using your Air Conditioner. 1 Precautions for safety ....................3 • Be sure to obtain the “Owner’s manual” and “Installation manual” from constructor (or dealer).
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Clothing to provide protection from electric shock The qualifi ed 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 Work done at heights...
─ 3 ─ Warning indications on the air conditioner unit Precautions for safety Warning indication Description The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. WARNING WARNING WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD Disconnect all remote Disconnect all remote electric power supplies before servicing.
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• You shall ensure that the air conditioner is transported in stable Operation condition. If you fi nd any part of the product broken, contact your • Before opening the intake grille of the indoor unit or service panel dealer. of the outdoor unit, set the circuit breaker to the OFF position.
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─ 5 ─ • When the air conditioner is operated with a combustion appliance • If you have discovered that the fan grille is damaged, do not in the same place, be careful of ventilation to let fresh air enter the approach the outdoor unit but set the circuit breaker to the OFF room.
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• Be sure to stop running the air conditioner and turn off the breaker CAUTION before cleaning. Otherwise, injury may result as the fan is rotating Installation at high speed inside the unit. • Certainly lay the drain hose for perfect draining. Bad drainage may •...
─ 7 ─ Part names Part names and functions of the remote controller ■ Fresh air intake unit Indoor Unit LCD backlight lights for 15 seconds during remote controller operation. MMD-UP048*HFP* All indicators are displayed in the display example below. Actually, only the selected options will be displayed.
■ Indicators Operation All icons on the display are shown for this explanation. Operations are not accepted when “SETTING” is fl ashing. When you use the air conditioner for the fi rst time or change the settings, follow the procedures below. From next time, pushing the ON/OFF button starts running of the air conditioner with the chosen settings.
─ 9 ─ ■ Operation mode and function OFF timer operation COOL : Cools the fresh air and sends it into the room HEAT : Heats the fresh air and sends it into the room OFF timer : The indoor unit stops when the set time is reached. : 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.
Installation Notes on operations and performance ■ Location ■ ■ Check before operation Protective device (High pressure switch) • Avoid locations where inside the ceiling is used as a route for fresh air. • Turn on the power switch at least 12 hours before •...
─ 11 ─ ■ Cleaning the indoor unit and Maintenance remote controller • Ask qualifi ed service person to clean the indoor units WARNING for the models listed in the warning on the top of this chapter. For daily maintenance including Air Filter cleaning, make sure to ask the qualifi ed service person •...
■ Confi rmation and check Troubleshooting If a problem occurs with the air conditioner, the OFF timer indicator When the following symptoms are found, check the points described below before asking repair servicing. alternately shows the check code Symptom Cause and the indoor Unit No.