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23

Operation (continued)

Automatic heating and cooling

The air conditioner automatically performs heating and cooling operation 
based on the difference between the temperature setting and room 
temperature. All indoor units in the same refrigerant system can be operated 
with a single group control.

Simultaneous operation of

multiple units (Group control)

Group control is suitable for air conditioning of a large room using multiple air 
conditioning units. 

One remote control unit can control up to eight indoor units.

All indoor units have the same settings except for the airflow direction. 

The temperature sensors at the indoor unit side are used.

Outdoor unit

Signal line

Remote control unit

Indoor unit

OI-824-23-EG

01_Airwell_ST-NKFL7R_EN.fm  Page 23  Thursday, June 15, 2006  4:18 PM

Summary of Contents for ST-NDHP 24R

Page 1: ...R ST NWFL 18R ST NWFL 24R Standard Static Pressure ST NDLP 7R ST NDLP 9R ST NDLP 12R ST NDLP 16R ST NDLP 18R ST NDLP 24R ST NDLP 36R ST NDLP 48R High Static Pressure ST NDHP 24R ST NDHP 36R ST NDHP 48...

Page 2: ...Date of purchase ________________________________________________ Dealer s address ________________________________________________ Phone number ________________ DECLARATION OF CONFORMITY This product...

Page 3: ...r where excessively high heat generating objects are placed Avoid To protect the air conditioner from heavy corrosion avoid installing the outdoor unit where salty sea water can splash directly onto i...

Page 4: ...nal Air outlet Ceiling panel optional Air intake grille air intake CONCEALED DUCT NDLP type standard static pressure Water drain Flexible duct optional Canvas duct optional Air intake grille air intak...

Page 5: ...side duct flange 2 locations Electrical box FLOOR STANDING NFFL type Water drain You can connect the drain pipe either the right or left side Air intake grille air intake Air outlet Air outlet grille...

Page 6: ...to 26 C DRY Used for dehumidifying without changing the room temperature temperature range 18 to 30 C COOL Used for normal cooling operation temperature range 18 to 30 C FAN Used to run the fan only...

Page 7: ...he same time When the batteries are replaced the address setting returns to ALL and so please make the setting again H A C SENSOR button When you press this button use a small tipped object such as a...

Page 8: ...or more seconds when the batteries have been replaced appears on the display and the ventilation fan can be used O Remote control sensor This detects the temperature around the remote control unit wh...

Page 9: ...ted by the wireless remote control units have been installed in the same room G SWING button When this button is pressed the airflow sweeps up and down automatically H FILTER lamp This lamp lights to...

Page 10: ...ed the UNIT button is used first to select a unit Then use the FLAP button to set the airflow direction to a specific angle or to sweep STEP 6 To stop the air conditioner Press the operation button ON...

Page 11: ...Use a pointed implement to press the ACL button The batteries last about a year depending on how much you use the wireless remote control unit Replace the batteries when the wireless remote control un...

Page 12: ...or inverter system For further details contact your dealer When mounting the wireless remote control unit on a wall for use Before mounting the wireless remote control unit on the wall place the unit...

Page 13: ...reless remote control unit s display The buzzer sounds if the address displayed matches the signal receiver s address The buzzer always sounds if ALL appears as the address display If ALL appears as t...

Page 14: ...e set to any position For positions 1 2 and 3 set the knob upward 1 conversely for 4 5 and 6 set the knob downward ON NK2FL NK1FL type Position of address switch on operation area inside indoor unit T...

Page 15: ...t Opeartion Press the Emergency operation button The air conditioner initiates a cooling operation when its operation is started up at a room temperature of 24 C or above Conversely it initiates a hea...

Page 16: ...initiates a heating operation when its operation is started up at a room temperature below 24 C ON OFF TEST Shutdown Set the ON OFF operation switch to OFF NOTE 1 Press the Emergency operation button...

Page 17: ...nes Do the indication lamps show a cooling heating mismatch or is the auto cooling heating function not available Change the operation mode Auto cooling heating or heating appears on the display even...

Page 18: ...erature range 17 to 27 C HEAT Used for normal heating operation Only for heat pump type temperature range 16 to 30 C DRY Used for dehumidifying without changing the room temperature temperature range...

Page 19: ...y mode if the flaps are set in a downward position condensation may form and drip around the vent Do not move the flap with your hands This function is available only for models NKFL NK1FL NK2FL NPFL...

Page 20: ...is running If is shown on the display of the remote control unit when the VENTILATION button is pressed this indicates that the ventilation fan is not connected O Remote control sensor Normally the te...

Page 21: ...utton is pressed for more than 4 seconds the TEST indicator appears Then press the ON OFF operation button to start test run H This is displayed to indicate that the system controller is being used fo...

Page 22: ...ted the fan speed switches automatically STEP 4 Setting the temperature Use the or button as appropriate to change the temperature setting as desired reduces the temperature and increases the temperat...

Page 23: ...ontrol Simultaneous operation of multiple units Group control Group control is suitable for air conditioning of a large room using multiple air conditioning units One remote control unit can control u...

Page 24: ...the swing operation Press the FLAP button to set the flap vertical airflow flap to the downward position and then press the FLAP button again This displays and the airflow automatically swings up and...

Page 25: ...unt it with the arrow facing outward Ceiling mounted type NPFL A Vertical directions automatic This air conditioner is equipped with an auto flap You can set the airflow direction to a specific angle...

Page 26: ...he horizontal airflow direction can be adjusted manually by moving the vertical vanes to the left or right Floor standing type NFFL NFMFL It is possible to change the airflow direction Remove the air...

Page 27: ...r unit number under group control Set the airflow direction for the indoor unit that is shown on the display Each time UNIT is pressed the indicator changes in the order shown below When nothing is di...

Page 28: ...icator appears on the display until defrosting is completed Heating operation then restarts after several minutes This interval will vary slightly depending upon the outdoor temperature and the way in...

Page 29: ...F cycle timer Use this mode to always turn off the unit automatically after a preset time elapses ON timer Use this mode to start the unit automatically after a preset time elapses When two remote con...

Page 30: ...he time using the or button 4 Press the SET button to set the OFF cycle timer When the OFF cycle timer is set the unit will always stop after 3 5 hours of operation How to set the ON timer Example Sta...

Page 31: ...r particles from the air and should be cleaned at regular intervals as indicated in the table below or when the filter indication on the display of the remote control unit wired type shows that the fi...

Page 32: ...in mind the dangers that these parts and areas pose and proceed with the work carefully 4 Remove the air filter attached to the air intake grille 2 way semi concealed type NK2FL Grasp the intake grill...

Page 33: ...he tab up gently Hold the air filter by the tab at the bottom and pull downward When replacing the filter make sure that the FRONT mark is facing you Push it up until you hear it click back into posit...

Page 34: ...ipe it clean Also clean the drain filter in the same way as the air filter Floor standing type NFMFL Remove the screws open the front panel and then remove any dirt accumulated inside the drain pan an...

Page 35: ...or many people in room 2 Eliminate heat source if possible 3 Doors and or windows are open 3 Shut them to keep the heat or cold out 4 Obstacle near air intake or air discharge port 4 Remove it to ens...

Page 36: ...WEEE USER MANUAL...

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