NEC RIH-2667, RIH-3267 User Manual
Inverter Split (room) air conditioner
RIH-2667 RIH-3267
User Manual
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Inverter Split (Room) Air Conditioner
Use and Care Manual
Preparation before use |
1 |
Safety Precautions |
2 |
Identification of parts |
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Indoor unit |
3 |
Outdoor unit |
3 |
Operating and display |
4 |
Remote controller |
5 |
Operation instructions |
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Operation modes |
7 |
Air flow direction control |
8 |
Smart mode |
9 |
Timer mode |
10 |
Sleep mode |
11 |
Super mode |
11 |
Maintenance |
12 |
Protection |
13 |
Troubleshooting |
14 |
Installation instructions |
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Installation diagram of air conditioner |
15 |
Select the installation locations |
16 |
Indoor unit installation |
17 |
Outdoor unit installation |
21 |
Air purging |
21 |
Notes |
22 |
Thank you very much for purchasing a NEC Air Conditioner. Please read this Use and Care Manual carefully before installing and using this appliance and keep this manual for future reference.
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Preparation before use
Before using the air conditioner, be sure to check and preset the following.
Remote Controller presetting
The remote controller is NOT presetting Correctly for cooling and reverse cycle.
Each time after replacing the batteries in the remote controller, the Cooling indicator 
and Heating indicator 
will flashes alternately on LCD of the remote controller.
User can preset the remote controller type depending on the air conditioner type you have purchased as follows:
Press any button when 
flashes, Heat Pump is set.
Press any button when 
flashes, Cooling Only is set.
If you don't press any button within 12 seconds, the remote controller is preset to Heat Pump automatically.
Note:
If the air conditioner you purchased is a Cooling Only one, but you preset the remote controller as Heat Pump, it will not operate. But if the air conditioner you purchased is a Heat Pump one, and you preset the remote controller as Cooling Only, then you CAN NOT preset the Heating operation with the remote controller.
Auto Restart Presetting
If you want auto restart function,let the appliance is energized, hold down the Emergency
button (ON/OFF) on the indoor unit for over 5 seconds, auto restart function is set with a buzz sound, air conditioner is on standby.
If auto restart has been set, hold down the Emergency button (ON/OFF) on the indoor unit for over 5 seconds, auto restart function is canceled with buzz sound, air conditioner is on standby.
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Safety precautions 
Symbols in this User Manual are interpreted as shown below.
Be sure not to do. |
Grounding is essential. |
Pay attention to such a situation.
Warning: Incorrect handling could cause a serious hazard, such as death, serious injury, etc.
Use correct power supply in accordance with the rating plate requirement. Otherwise, serious faults or hazard may occur or a fire maybe break out.
Prevent the air flow from reaching the gas burners and stove.
ON
OFF
Do not use the power supply circuit breaker or pull off the plug to turn it off during operation. This may cause a fire due to spark, etc.
Do not touch the operation buttons when your hands are wet.
Never insert a stick or similar obstacle to the unit. Since the fan rotates at high speed, this may cause an injury.
Do not put any objects on the outdoor unit.
Turn off the appliance by remote control firstly before cutting off power supply if malfunction occurs.
Do not repair the appliance by yourself. If this is done incorrectly, it may cause an electric shock, etc.
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Identification of parts
Indoor
unit
Outdoor
unit
Air Intake
Front Panel
Display Panel
Emergency Panel
Air Outlet
Vertical Adjustment
Louver
Horizontal Adjustment
Louver
Air Filter
Remote Controller
Air Intake
Pipes and Power
Connection Cord
Drain Hose
Note: Condensate water drains at COOLING or DRY operation.
Air Outlet
The figures in this manual are based on the external view of a standard model. Consequently, the shape may differ from that of the air conditioner you have selected.
Note: The pipes and power connection cord will be provided or purchased by customer.
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Identification of parts 
UH
series operating and
display
Timer Indicator
It lights up during the set time.
Run Indicator
It is on during operation.
It flashes during defrosting.
Timer |
Comp. |
Run |
Sleep |
Compressor indicator |
Temperature display |
Sleep Indicator |
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It.lights up when |
Display actual room |
It lights up when |
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temperarure. |
unit is in sleep mode. |
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compressor is running. |
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Display set temperature. |
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The shape and position of the switches and indicators may vary from different models, but their function are similar.
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Remote controller
Remote
controller
The remote controller transmits signals to the system.
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S UPER |
SMART |
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Indication symbols on LCD:
1 ON/OFF BUTTON
2 MODE BUTTON
3 FAN BUTTON
4 ROOM TEMPERATURE
SETTING BUTTONS
5 SWING BUTTON
6 SMART BUTTON
7 TIMER SET/CANCEL BUTTON
8 SLEEP BUTTON
9 SUPER BUTTON
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See page 9 "Smart Mode" for details)
Note: Each mode and relevant function will be further specified in following pages.
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Remote controller
Remote
controller
How to Insert the Batteries
Remove the battery cover according to the arrow direction.
Insert new batteries making sure that the (+) and (-) of battery are matched correctly.
Reattach the cover by sliding it back into position.
Note:
Use 2 LR03 AAA(1.5volt) batteries. Do not use rechargeable batteries. 
Replace batteries with new ones of the same type when the display becomes dim or effective responce.
If the replacement is done within 1 minute, the remote controller will keep original presetting. However, if you want to change the presetting from Heat Pump to Cool Only or Cool Only to Heat Pump, you should reload batteries 3 minutes after removing the old ones.
(Please refer to page 1 for details.)
Storage and Tips for Using the Remote Controller
The remote controller may be stored mounted on a wall with a holder.
Note: The remote controller holder is an optional part.
Remote controller holder
How to Use
To operate the room air conditioner, aim the remote controller to the signal receptor. The remote controller will operate the air conditioner at a distance of up to 7m when pointing at signal receptor of indoor unit.
Signal receptor
Choose Cooling Only Remote controller or Heat Pump
Please refer to page 1 " Preparation before use" for details.
Back-light Function (optional)
Please refer to page 1 "Preparation before use" for details.
6
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