Page 1
RH189, RH190, RC245, RC246 RH240, RH241 Thank you for purchasing the NEC room air-conditioner. All NEC products have been carefully designed and prepared at the factory under strict quality guide lines. We are confident that this product will give you daily comfort and satisfaction if it is handled properly based on this owner's manual.
Safety precautions FOR YOUR RECORDS Safety Precautions .....3 Write the model and serial numbers here: Model # Serial # You can find them on a label on the side of each unit. Dealer's Name Date Purchased Operating Instructions About the Controls on the Air READ THIS MANUAL Conditioner......5 Care and Maintenance ..8...
Important Safety Precautions Read all instructions before using To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring of instruction will cause harm or damage, the seriousness is classified by the following indications.
Page 4
When the air filter is Do not clean the air Ventilate well when When the unit is to be cleaned, switch the to be removed, do not conditioner with used together with a unit off, and unplug touch the metal parts water.
About the Controls on the air conditioner The controls will look like the following. Thermostat Operation High Cool Cool Low Cool Controls THERMOSTAT OPERATION Thermostat will automatically control the ) : Turns the air conditioner temperature of the room. Select higher off.
Page 6
The controls will look like the following. THERMOSTAT OPERATION COOLER WARMER AUTO SWING HEATER HEATER WARMER COOLER THERMOSTAT OPERATION HEATER WARMER COOLER WARMER COOLER THERMOSTAT OPERATION THERMOSTAT OPERATION Controls OPERATION HEATER LAMP When the unit sets heating operation condition, the ) : Turns the air conditioner off.
Additional controls and important information Vent Control The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions. When fresh air is necessary in the room, set the ventilation lever to the OPEN position. The damper is opened and room air is exhausted.
Care and maintenance of the air conditioner Grille and Case To clean, use water and a mild detergent. Do Turn the air conditioner off and remove the plug not use bleach or abrasives. from the wall outlet before cleaning. Outdoor Coils The coils on the outdoor side of the air conditioner should be checked regularly.
Features and Installation Learning parts name prior to installation will help you understanding the installation procedure. Features 13 11 1. CABINET 4. AIR DISCHARGE 9. POWER CORD 2. HORIZONTAL AIR 5. FRONT GRILLE 10. EVAPORATOR DEFLECTOR 6. AIR INTAKE 11. CONDENSER (VERTICAL LOUVER) (INLET GRILLE) 12.
Page 10
Installation FENCE GASKET AWNING COOLED AIR HEAT RADIATION ABOUT 10mm Over 50cm 1. To avoid vibration and noise, make sure the unit is installed securely and firmly. 2. Install the unit where the sunlight does not shine directly on the unit. If the unit receives direct sunlight, build an awning to shade the cabinet.
Page 11
Installation Instructions 1. Remove the screws which fasten the cabinet Shipping screws at both sides and at the back. 2. Slide the unit from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet. 3. Remove EPS Material (for some Models). EPS Material 4.
Page 12
Installation of the Housing It is necessary to ensure that the side louvres are not obstructed when installing into the wall. NOTE: UNIT MAY BE SUPPORTED BY A Step 1 SOLID FRAME FROM BELOW OR Remove the air conditioner from it’s packaging and slide the air BY A HANGER FROM A SOLID OVERHEAD SUPPORT.
Page 13
Installstions of the Unit into the Wall 45° BRICK CUT AWAY 45° BRICK CUT AWAY TO CLEAR LOUVRES TO CLEAR LOUVRES AIR IN FRONT BRICK BRICK WALL WALL 100mm AIR IN VIEW AIR IN AIR IN AIR IN 100mm LOUVRE AIR OUT AIR OUT 100mm minimum...
Before you call for service... Troubleshooting Tips Save time and money! Review the chart below first and you may not need to call for service. Normal Operating • You may hear a pinging noise caused by water being picked up and thrown against the condenser on rainy days or when the humidity is high.
Page 15
NEC AUSTRALIA PTY LTD A.C.N. 004 803 490 P/NO. 3828A20109H...