Remote Control Unit Installation Position How to Test Run the Air Conditioner Removing and Installing the Grille Address Setting of the Remote Control Unit Operation Functions Protective Functions Precautions before Performing Inspection or Repair Method of Self-Diagnostics Checking the Indoor and Outdoor Units Noise Malfunction and Electromagnetic Interference Measurement of Insulation Resistance Characteristics of New Refrigerant RA Checklist before Servicing Tools Specifically for RA Tubing Installation Procedures In Case of Compressor Malfunction In Case Refrigerant is Leaking Charging Additional Refrigerant Retro-Fitting Existing Systems Page 6 2.
Indoor Unit 9 11 0. Indoor Unit 10 12 0. Major Component Specifications Q'ty No. Amount Coil Resistance Ambient Temp. Control Yes Yes - Operation cut-off control in abnormal ambient Temp. Propeller D mm Fan Motor Type Model To prevent heat loss and wet floors due to dripping of condensation, both tubes must be well insulated with a proper insulation material.
The thickness of the insulation should be a min. Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode. Refer to " Overload prevention during heating.
Power input Indoor air temperature: Outdoor air temperature: A W 0. Power input Indoor air temperature Outdoor air temperature A W 0. Installation Site Selection Indoor Unit WARNING To prevent abnormal heat generation and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air conditioner in a way that may block air flow.
Elevation difference H places where large amounts of oil mist exist. High on a wall is best. For stable operation of the air conditioner, do not install wall-mounted type indoor units less than 1. Floor level Install the indoor unit more than 1 meter away from Fig. Electrical noise from any of these sources may affect operation.
Table 1 Model Max. No additional charge of compressor oil is necessary. Outdoor unit DO: position the outdoor unit in a protected location where snow will not blow into it. Anchor bolts 4 pcs. Install in a location where no antenna of a television or radio exists within 3 meters. Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality.
For field wiring requirements, please refer to your local electrical codes. Carefully observe these regulations when carrying out the installation. Table 2 lists recommended wire lengths and diameters for power supply systems. Each wire must be firmly connected.
No wire should be allowed to touch refrigerant tubing, the compressor, or any moving part. For the installation of a grounding device, please observe local electrical codes. Grounding is necessary, especially for units using inverter circuits, in order to release charged electricity and electrical noise caused by high tension.
Otherwise, electrical shock may occur. Place a dedicated ground more than 2 meters away from other grounds and do not have it shared with other electric appliances. The indoor unit draws its power from the outdoor unit. Do not run wiring for antenna, signal, or power lines of television, radio, stereo, telephone, security system, or intercom any closer than 1 meter from the power cable and wires between the indoor and outdoor units.
Electrical noise may affect the operation. Remote Control Unit Installation Position The remote control unit can be operated from either a non-fixed position or a wall-mounted position.
The indoor unit should make a beeping sound to indicate that it has received the signal. To take out the remote control unit, pull it forward. How to Test Run the Air Conditioner After turning on power to the air conditioner, use the remote controller and follow the steps below to conduct the test run. Use a pointed object such as the tip of a pen to press the ACL button. Cool mode test run is unaffected by the room temperature. The air conditioner will not operate correctly if this is not done.
Removing and Installing the Grille Arm Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below. How to remove the grille 1 Open the front panel until it is nearly horizontal, grasp the sections near the front panel arms on both sides, and then pull towards you to remove the front panel.
Grasp the grille on both bottom sides, and pull it towards you slightly. Address Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two indoor units are installed near each other. The address is normally set to "A. When the tab is removed, the address is automatically set to B Fig.
At the same time, press the ACL reset button. Use a thin object such as the tip of a pen to press the ACL button. When this has been done, "oP-1" test run appears, blinking, in the remote controller clock display area. Press this button 2 times to change the display to "oP-7" address setting. The sound you hear is the signal that the remote controller address has been changed. ACL Reset button Fig. Disconnecting and Connecting Positive Connector for Outdoor Unit One of the two types of connectors illustrated at left is used.
Their basic structure is the same for each. How to Disconnect Hold the resin connector cover, and pull the connector off. You cannot disconnect the connector by pulling the wire since it is locked inside. Always hold the cover to disconnect.
See illustration at left. For the connector without the resin cover, push the lock in the direction of "2" while pulling it off. Pull the cover upward How to Connect In order to connect, hold the resin cover of the connector and push it in.
Confirm the click sound for the inside lock. When the cover is pulled upward, the lock is released with the sequence of 1 and 2. During DRY operation, the system adjusts the room temperature and fan speed according to the conditions in the room, in order to maintain a comfortable room environment.
Select the desired type of operation. The flap and fan speed settings are AUTO. Conditions are monitored at all times when the room temperature is below 15 C.
DRY A The compressor operation frequency varies. Room temp. Set temp. COOL Room temp. HEAT The compressor operates at a low operating frequency. Zone A Zone B Set temp. It can be set regardless of the temperature and fan speed settings. The main unit display lamp also becomes dimmer. The fan speed is 1 step above "High. This enables you to save energy without sacrificing comfort. This function is convenient when gentle cooling is needed. This function is convenient when gentle heating is needed.
Time Page 33 Indoor heat exchanger A. Control start B. Control end A Approx. As the temperature of the indoor heat exchanger rises, the fan speed is changed to the set speed. Area: Automatic capacity control b.
When Point A has been exceeded, the operation frequency is LL reduced by a certain proportion. Stopped c. Area: Frequency increase is prohibited. At Point B and below, overload prevention is ended and control is the same as in the a area. Compressor discharge temperature control This function controls the operation frequency to prevent the compressor discharge temperature from rising more than a specified temperature.
When the temperature drops below Point A, the operation B a frequency is reduced by a certain proportion. Area: Automatic capacity control. When the temperature rises above Point A, the operation c. When the temperature reaches Point C or above, freezing prevention is ended and control is the same as in the a area.
Area: Further frequency increase is prohibited. Once the freeze condition is detected, the air conditioner will work less than the maximum frequency until it is turned off. In these cases, operation frequency is reduced or operation is interrupted automatically to control the electrical current for operation.
Outdoor heat exchanger temp. Releasing of defrosting Outdoor heating exchanger temp. Defrosting operation lasts 12 minutes maximum. Outdoor fan is ON. NOTE If the air conditioner is turned off during the defrosting cycle, it will continue defrosting and turn itself off after defrosting is completed. Page 35 Page Shaping The Tubing Shaping the Tubing Right-rear tubing 1 Shape the refrigerant tubing so that it can easily go into the hole.
The drain hose should be positioned below the refrigerant tubes, and should be given sufficient space so that no strong tension is applied to it. The operation lamp on the display blinks. Page 25 3. Cutting and Flaring of Liquid Tube After determining the position for installation, cut the liquid tube and flare the connecting portion. Pay attention to the notes below when flaring the tubes. Page 26 5. Flare Insulation of Tubing After completing a leakage test, apply heat insulation.
Insulating tape Flare insulator Clamps small Be careful not to allow a gap to occur between the thermal insulation of the tubing and the thermal insulation of the main unit. Page 27 7. Required Minimum Space for Installation and Service Install the unit where cooled or heated air from the unit can cir- culate well in the room. Do not put obstacles which may obstruct the air flow in front of the air intake and outlet grilles. When removing or attaching the panel, take care not to damage the lead wire to the heater.
How to remove the front panel 1 Remove the 2 screws at the lower part of the front panel. Do not use adhesive here. You must ensure that installation complies with all relevant rules and regulations. Page Wiring System Diagram When shipping: In shorted condition. Otherwise the communication of S-net link system is not performed. A fire hazard may also exist. Therefore, ensure that all wir- ing is tightly connected.
HEAT : The air conditioner makes the room warmer. FLAP button Press this button either to select the setting of the airflow direction to the auto. If selected in a cooling or dry operation, the flap is set at position 7 in the following chart.
And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly. If the remote control is located near a heat source, such as a space heater or in direct sunlight, press the SENSOR button to switch to the sensor on the indoor unit.
Time Display Selector button This switches the time display between hour time and hour time. Always press this button after replacing the batteries. Normally, the address switch is set to A.
For more information, please contact the dealer where you made the purchase. Normally, the tabs on the remote control unit should not be bent. The remote control unit sends the temperature signal to the air conditioner regularly at five minute intervals. If the signal from the remote control unit stops for more than 15 minutes due to the loss of the remote control unit or other trouble, the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature.
Slide the cover in the direction indicated by the arrow and remove it. Install two AAA alkaline batteries. Make sure the batteries point in the direction marked in the battery compartment. Use two fresh leak-proof type-AAA alkaline batteries. If you do not use the remote control unit more than 1 month, take out the batteries. Make sure that there are no objects between the remote control unit and receiver which could block the signal.
Automatic Operation This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting. If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired. When the operation button is pressed, the compressor will start running within three minutes.
In the event of power failure, the unit will stop. Adjusting the Fan Speed A. This automatically sets the best fan speed for the room temperature. The mark appears in the display. This enables you to save energy without sacrificing comfort. This function is convenient when gentle cooling is needed. In Heating Mode: 30 min. This function is convenient when gentle heating is needed. Depending on the operating conditions, the fan speed may be increased by a small amount only.
During DRY operation, the fan speed is automatically runs at lower speed for providing a comfortable breeze. If sufficient heat cannot be obtained with this air conditioner, use another heating appliance together with it. When this happens, a microcomputer defrosting system operates.
Heating operation restarts after several minutes. This interval will vary slightly depending upon the outdoor temperature and the way in which frost forms.
However, the fan may remain stopped when the room temperature is low. When the power is resumed, the unit will restart automatically within five minutes by the remote control unit.
In this event, a clicking sound may occur. This is normal, and the sound will soon disappear. How to set the present time In the descriptions below, the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote control. Operation 2.
How to set the OFF time 18 Indication 1. The time indication alone flashes. Press the Advance, Return , button until PM is displayed. The time can be set in 1-minute increments. Holding down the button advances the time rapidly in minute increments. This completes the setting of the current time. Example To stop the air conditioner at am. The timer indication is displayed, and the present OFF time is shown.
Press the Advance, Return , button until AM is displayed. The timer indication blinks. The time can be set in minute increments. Wait a few seconds, and then the setting is complete. The timer indication stops blinking and the present time is displayed. How to set the ON time Example To start operation at am. Operation 4. The timer indication is displayed, and the present ON time is shown. Example To start operation at am. Present time am. Even when operation is stopped during an ON timer program, the unit will start operating when the set time is reached provided that the program is not canceled.
The indicator in the display indicates that this function is operating. Setting procedure: Regardless of whether the unit is operating or stopped, press the 1 HR.
TIMER button. The 1-Hour Timer function is now cancelled and the unit operates normally. TIMER button is pressed once to cancel the function and then again, the unit continues to operate for one hour from that point in time and then stops.
Whichever function is set last takes precedence. If the 1 HR. If they are obstructed, the unit will not work well, and may be damaged. Let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls and ceiling of the room are warmed by the sun, it will take longer to cool the room.
Always try to keep the air filter clean. A clogged filter will impair the performance of the unit. To prevent conditioned air from escaping, keep windows, doors and any other openings closed. Vertical The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right.
When the humidity is high, the vertical vanes should be in the front position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the right or left, condensation may begin to form around the air vent and drip down. The vertical airflow can be adjusted by moving the flap with the remote control unit. Do not move the flap with your hands.
Confirm that the remote control unit has been turned on. Use the FLAP button to set either the sweep function or one of the six airflow direction settings. Sweep function The flap starts moving up and down to deliver air over the sweep range. Auto flap function The flap is set to the recommended position. During the heating operation, the fan speed will be very low and the flap will be in the horizontal position position until the air being blown out of the unit begins to warm.
Once the air warms up, the flap position and fan speed change to the settings specified with the remote control. If you move the flap by hand, the flap position according to the remote control and the actual flap position may no longer match. If this should happen, shut off the unit, wait for the flap to close, and then turn on the unit again; the flap position will now be normal again.
Do not have the flap pointed down during cooling operation. Condensation may begin to form around the air vent and drip down. Setting the airflow manually Referring to the above illustration, use the FLAP button to set the airflow direction within the range used during the heating, cooling, or dehumidifying operation.
Care and Cleaning 1. For safety, be sure to turn the air conditioner off and also to disconnect the power before cleaning. Do not pour water on the indoor unit to clean it. This will damage the internal components and cause an electric shock hazard. Casing and Grille Indoor Unit Clean the casing and grille of the indoor unit with a vacuum cleaner brush, or wipe them with a clean, soft cloth.
If these parts are stained, use a clean cloth moistened with a mild liquid detergent. When cleaning the grille, be careful not to force the vanes out of place.
Never use solvents, or harsh chemicals when cleaning the indoor unit. Do not wipe the plastic casing using very hot water.
Some metal edges and the fins are sharp and may cause injury if handled improperly; be especially careful when you clean these parts. The internal coil and other components of the outdoor unit must be cleaned every year. Consult your dealer or service center. Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you. Air intake grille 2. Remove the anti-mold filter attached to the rear of the air intake grille. Cleaning How to replace the anti-mold filter Anti-mold filter Use a vacuum cleaner to remove light dust.
If there is sticky dust on the filter, wash the filter in lukewarm, soapy water, rinse it in clean water, and dry it. With the FRONT mark of the anti-mold filter at the front, align the two indentions near the mark with the hooks at the rear of the air intake grille, and then mount the anti-mold filter.
Allow the edge of the air intake grille to slide into the top of the indoor unit, and then insert it all the way inside. Press in the bottom right and left corners of the air intake grille to attach the indoor unit. NOTE OIEG Groove Pin Air intake grille Air intake grille Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit.
This air clean filter cannot remove harmful gases or vapors nor ventilate air in the room. You must open doors or windows frequently when you use gas or oil heating appliances.
Otherwise there is a risk of suffocation in extreme cases. How to install the air clean filter The air clean filter needs to be installed behind the air intake grille. The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document.
Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death.
Loose wiring may cause overheating at connection points and a possible fire hazard. Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers. It may be necessary to construct a strong wood or metal frame to provide added support.
Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration. Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle. Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas.
If escaped gas comes in contact with a stove, gas water heater, electric room heater or other heat source, it can produce dangerously toxic gas. This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning.
Copper tubing for connecting the outdoor unit to the indoor unit is available in kits which contain the narrow and wide tubing, fittings and insulation. Foamed polyethylene insulation for the specified copper tubes as required to precise length of tubing. Use insulated copper wire for field wiring. Wire size varies with the total length of wiring. Refer to Wiring Instructions for details. Deoxidized annealed copper tube for refrigerant tubing as detailed in Table 2.
Cut each tube to the appropriate lengths 1' to 1'4" 30 cm to 40 cm to dampen vibration between units. Check local electrical codes and regulations before obtaining wire.
Also, check any specified instructions or limitations. Refrigeration armored tape. Insulated staples or clamps for connecting wire See local codes. Clamps or saddles to secure refrigerant tubing. To prevent abnormal heat generation and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air conditioner in a way that may block air flow. Drain hose. High on a wall is best. Electrical noise from any of these sources may affect operation.
For stable operation of the air conditioner, do not install wall-mounted type indoor units less than 5' 1. No additional charge of compressor oil is necessary. Tubing can be extended in 5 directions as shown in Fig.
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