DELLA 048-TL-W8KI Smart Inverter Window Air Conditioner User Manual

DELLA 048-TL-W8KI Smart Inverter Window Air Conditioner

Product Information

Specifications

• Model Numbers: 048-TL-W8KI, 048-TL-W10KI, 048-TL-W12KI
• Power Supply: 1Ph, 115V~, 60Hz
• Rated Capacity (Btu/h): 8000 (048-TL-W8KI), 10000 (048-TL-W10KI), 12000 (048-TL-W12KI)
• Rated Input (W): 740 (048-TL-W8KI), 950 (048-TL-W10KI), 1190 (048-TL-W12KI)
• Rated Current (A): 8.3 (048-TL-W8KI), 10 (048-TL-W10KI), 12 (048-TL-W12KI)
• Moisture Removal (L/h): 1.25 (048-TL-W8KI), 1.5 (048-TL-W10KI), 1.75 (048-TL-W12KI)
• Refrigerant Type (R32): 280g (048-TL-W8KI), 300g (048-TL-W10KI), 330g (048-TL-W12KI)
• Indoor Noise Level Cooling (Hi/Med/Lo/Mute): 48/45/42/42 dB(A) (048-TL-W8KI), 51/47/42/42 dB(A) (048-TL-W10KI), 55/49/42/42 dB(A) (048-TL-W12KI)
• Outdoor Noise Level (Hi/Med/Lo): 58/52/48 dB(A) (048-TL-W8KI), 60/52/48 dB(A) (048-TL-W10KI), 61/56/48 dB(A) (048-TL-W12KI)
• Application Area: 28-33 m2 / 300-350 sq.ft (048-TL-W8KI), 34-41 m2 / 370-440 sq.ft (048-TL-W10KI), 42-48 m2 / 450-520 sq.ft (048-TL-W12KI)
• Dimensions: 525x489x340 mm / 20.67×19.25×13.39 in for all models
• Net Weight: 25.5 kg / 56.2 lbs (048-TL-W8KI), 26.2 kg / 57.8 lbs (048-TL-W10KI), 26.6 kg / 58.6 lbs (048-TL-W12KI)

Product Usage Instructions

WARNING

1. Installation must be performed according to the provided instructions to avoid water leakage, electrical shock, or fire hazards.
2. Use only the included accessories and specified tools for installation to prevent potential hazards.
3. Ensure the power outlet is grounded and has the correct voltage; refer to the appliance’s nameplate for voltage information.
4. The appliance must be used with a properly grounded wall receptacle; consult an electrician if needed.
5. Place the appliance on a flat, sturdy surface to prevent damage, noise, or vibration issues.
6. Keep the appliance unobstructed for proper function and safety.
7. Avoid modifying the power cord’s length or using extension cords; do not share outlets with other appliances.

Installation Instructions

Follow these steps to install the air conditioner:

1. Refer to the installation manual for detailed instructions.
2. Ensure proper ventilation around the unit for efficient cooling.
3. Securely plug the power cord into a grounded outlet.
4. Avoid bending or damaging the power cord during installation.

Operation Instructions

To operate the air conditioner:

1. Turn on the unit using the power button on the control panel.
2. Select the desired cooling mode and fan speed using the remote control or control panel.
3. Set the temperature according to your comfort level.
4. Clean or replace air filters regularly for optimal performance.

FAQ

• Q: Can I use this air conditioner in a larger room than the recommended size?
• A: It is recommended to use the air conditioner within the specified room size range for efficient cooling and dehumidification. Using it in a larger room may result in reduced performance.
• Q: How often should I clean the air filters?
• A: It is advisable to clean or replace the air filters every 2-4 weeks depending on usage. Clogged filters can reduce airflow and efficiency.

NOTICE

• If your package is missing parts or you are having issues with assembly, please call Della directly at 800-863-4143.
• The Della customer service team will address any questions or concerns you may have.
• Have this manual open and ready for reference.
• Product appearance and colour may vary from pictures.
• Keep the manual properly for future reference.

The design and specifications are subject to change without prior notice for product improvement.
Consult with the sales agency or manufacturer for details.

• The shape and position of buttons and indicators may vary according to the model, but their function is the same.

Indoor noise level Cooling

(Hi/Med/Lo/Mute)(dBA)

|

48/45/42/42

|

51/47/42/42

|

55/49/42/42

Outdoor noise level

(Hi/Med/Lo) (dBA)

|

58/52/48

|

60/52/48

|

61/56/48

Application area (m2)| 28-33| 34-41| 42-48
Application area (sp.ft)| 300-350| 370-440| 450-520
Dimension(WDH)(mm/in)| 525x489x340/20.67×19.25×13.39| 525x489x340/20.67×19.25×13.39| 525x489x340/20.67×19.25×13.39
Net weight (kg/lbs)| 25.5/56.2| 26.2/57.8| 26.6/58.6

IMPORTANT SAFETY INSTRUCTIONS

Read All Instructions and Cautionary Markings Before Operation and Installation to prevent death or injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring of instructions may cause death, harm or damage.

• This symbol indicates the possibility of personnel injury or loss of life.
• This symbol indicates the possibility of property damage or serious consequences.

WARNING

1. Installation must be performed according to the installation instructions. Improper installation can cause water leakage, electrical shock, or fire.
2. Use only the included accessories and parts, and specified tools for the installation. Using nonstandard parts can cause water leakage, electrical shock, fire, and injury or property damage.
3. Make sure that the outlet you are using is grounded and has the appropriate voltage. The power cord is equipped with a three-prong grounding plug to protect against shock. Voltage information can be found on the nameplate of the appliance.
4. Your appliance must be used in a properly grounded wall receptacle. If the wall receptacle you intend to use is not adequately grounded or protected by a time delay fuse or circuit breaker (the fuse or circuit breaker needed is determined by the maximum current of the appliance. The maximum current is indicated on the nameplate located on the appliance), have a qualified electrician install the proper receptacle.
5. Install the appliance on a flat, sturdy surface. Failure to do so could result in damage or excessive noise and vibration.
6. The appliance must be kept free from obstruction to ensure proper function and to mitigate safety hazards.
7. Do not modify the length of the power cord or use an extension cord to power the appliance.
8. Do not share a single outlet with other electrical appliances. Improper power supply can cause fire or electrical shock.
9. Do not install your air conditioner in a wet room such as a bathroom or laundry room. Too much exposure to water can cause electrical components to short circuit.
10. Do not install the appliance in a location that may be exposed to combustible gas, as this could cause a fire.
11. he appliance has wheels to facilitate moving. Make sure not to use the wheels on thick carpets or to roll over objects, as these could cause tipping.
12. Do not operate the appliance if it has been dropped or damaged.
13. The appliance with an electric heater shall have at least 3 feet / 1-meter space away from the combustible materials.
14. Do not touch the appliance with damp hands or when barefoot.
15. If the air conditioner is knocked over during use, turn off the appliance and unplug it from the main power supply immediately. Visually inspect the appliance to ensure there is no damage. If you suspect the appliance has been damaged, contact a technician or customer service for assistance.
16. In a thunderstorm, the power must be cut off to avoid damage to the machine due to lightning. Your air conditioner should be used in such a way that it is protected from moisture. e.g. condensation, splashed water, etc. Do not place or store your air conditioner where it can fall or be pulled into water or any other liquid. Unplug immediately if it occurs.
17. All wiring must be performed strictly under the wiring diagram located inside the appliance.
18. The appliance’s circuit board(PCB) is designed with a fuse to provide overcurrent protection. The specifications of the fuse are printed on the circuit board, such as T 3.15A/250V, etc.
19. After proper installation, condensate will not overflow during normal use. If the fan hits the built-up water and the sound annoys you, please remove the cap located at the back of the air conditioner to drain the water away.

CAUTION

1. This appliance can be used by children aged 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be done by children without supervision.
   (be applicable for the European Countries)

2. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. Children must be supervised around the appliance at all times.
   (Be applicable for other countries except the European Countries.)

3. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons to avoid a hazard.

4. Before cleaning or other maintenance, the appliance must be disconnected from the supply mains.

5. Never use this appliance if it is not working properly, or if it has been dropped or damaged.

6. Do not run a cord under the carpeting. Do not cover the cord with throw rugs, runners, or similar coverings. Do not route the cord under furniture or appliances. Arrange the cord away from the traffic area so that it will not be tripped over.

7. Do not operate with a damaged cord, plug, power fuse or circuit breaker. Discard the appliance or return it to an authorized service facility for examination and/or repair.

8. To reduce the risk of fire or electric shock, do not use this fan with any solid-state speed control device.

9. The appliance shall be installed according to national wiring regulations.

10. Contact the authorized service technician for repair or maintenance of this appliance.

11. Contact the authorized installer for the installation of this appliance.

12. Do not cover or obstruct the inlet or outlet grilles.

13. Do not use this product for functions other than those described in this instruction manual.

14. Before cleaning, turn off the power and unplug the appliance.

15. Disconnect the power if strange sounds, smells, or smoke come from it.

16. Do not press the buttons on the control panel with anything other than your fingers.

17. Do not operate or stop the appliance by inserting or pulling out the power cord plug.

18. Do not use hazardous chemicals to clean or come into contact with the appliance.
    Do not use the appliance in the presence of inflammable substances or vapour such as alcohol, insecticides, petrol, etc.

19. Always contact a qualified person to carry out repairs. If the damaged power supply cord must be replaced with a new power supply cord obtained from the product manufacturer and not repaired.

20. Hold the plug by the head of the power plug when taking it out.

21. Turn off the product when not in use.

Operation of Current Device
The power supply cord contains a current measuring device that detects damage to the power cord. Test your power supply cord as follows:

1. Plug in the air conditioner.
2. The power supply cord will have TWO buttons on the plug head. Press the TEST button. You will notice a click as the RESET button pops out.
3. Press the RESET Button. You will notice a click as the button engages.
4. The power supply cord is now supplying electricity to the unit. (On some products this is also indicated by a light on the plug head.)

NOTE

1. The power supply cord with this air conditioner contains a current detection device designed to reduce the risk of fire.
2. If the power supply cord is damaged, it can not be repaired. It must be replaced with a cord from the manufacturer.
3. Do not use this device to turn the unit on or off.
4. Always make sure the RESET button is pushed in for correct operation.
5. The power supply cord must be replaced if it fails to reset when either the TEST button is pushed, or it can not be reset.Please contact Customer Service.

WARNING FOR USING R32 REFRIGERANT
For R32 refrigerant models:

1. The appliance shall be installed, operated and stored in a room with a floor area larger than 4 m2.
2. The appliance shall not be installed in an unventilated space if that space is smaller than 4 m2.
3. Compliance with national gas regulations shall be observed.
4. Keep ventilation openings clear of obstruction.
5. The appliance shall be stored to prevent mechanical damage from occurring.
6. A warning that the appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.
7. Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorises their competence to handle refrigerants safely under an industry-recognised assessment specification.
8. Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.
9. Please follow the instructions carefully to handle, install, clear, and service the air conditioner to avoid any damage or hazard. Flammable Refrigerant R32 is used within the air conditioner. When maintaining or disposing of the air conditioner, the refrigerant (R32) shall be recovered properly, and shall not discharge to air directly.
10. No any open fire or device like a switch which may generate spark/arcing shall be around air conditioner to avoid causing ignition of the flammable refrigerant used.
11. Please follow the instructions carefully to store or maintain the air conditioner to prevent mechanical damage from occurring.
12. Flammable refrigerant -R32 is used in air conditioners. Please follow the instructions carefully to avoid any hazards.
13. For specific information on the type of gas and the amount, please to the relevant label on the unit itself.

Note about Fluorinated Gases

1. Fluorinated greenhouse gases are contained in hermetically sealed equipment. For specific information on the type, the amount and the Co2 equivalent in tonnes of the fluorinated greenhouse gas(on some models), please refer to the relevant label on the unit itself.
2. Installation, service, maintenance and repair of this unit must be performed by a certified technician.
3. Product uninstallation and recycling must be performed by a certified technician.

Explanation of symbols displayed on the unit:

FOR HOUSEHOLD USE ONLY READ AND SAVE THESE INSTRUCTIONS

• Transport of equipment containing flammable refrigerants
  See transport regulations.

• Marking of equipment using signs
  See local regulations.

• Disposal of equipment using flammable refrigerants
  See national regulations.

• Storage of equipment/appliances
  The storage of equipment should be by the manufacturer’s instructions.

• Storage of packed (unsold) equipment
  Storage package protection should be constructed such that mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge. The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.

• Information on servicing

• Checks to the area
  Before beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system.

• Work procedure
  Work shall be undertaken under a controlled procedure to minimise the risk of a flammable gas or vapour being present while the work is being performed.

• General work area
  All maintenance staff and others working in the local area shall be instructed on the nature of the work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the conditions within the area have been made safe by control of flammable material.

• Checking for the presence of refrigerant
  The area shall be checked with an appropriate refrigerant detector before and during work, to ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.

• Presence of a fire extinguisher
  If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.

• No ignition sources
  No person carrying out work about a refrigeration system that involves exposing any pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repair, removal and disposal, during which flammable refrigerant can be released to the surrounding space. Before work takes place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. No Smoking signs shall be displayed.

• Ventilated area
  Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.

• Checks to the refrigeration equipment
  Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed. If in doubt consult the manufacturer’s technical department for assistance. The following checks shall be applied to installations using flammable refrigerants:

• The charge size is under the room size within which the refrigerant-containing parts are installed;

• The ventilation machinery and outlets are operating adequately and are not obstructed;

• If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant; Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected;

• Refrigeration pipes or components are installed in a position where they are unlikely to be exposed to any substance that may corrode refrigerant-containing components unless the components are constructed of materials that are inherently resistant to being corroded or are suitably protected against being so corroded.

• Checks to electrical devices Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include:

• That capacitors are discharged: this shall be done safely to avoid the possibility of sparking;

• That no live electrical components and wiring are exposed while charging, recovering or purging the system;

• That there is continuity of earth bonding.

Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmosphere. The test apparatus shall be at the correct rating. Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak.
Cabling
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
Detection of flammable refrigerants
Under no circumstances shall potential sources of ignition be used in the search for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.
Leak detection methods
The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate or may need re-calibration.
(Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25 %maximum) is confirmed. Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/extinguished. If leakage of refrigerant is found which requires brazing, all of the refrigerants shall be recovered from the system, or isolated (through shut-off valves) in a part of the system remote from the leak. Oxygen-free nitrogen
(OFN) shall then be purged through the system both before and during the brazing process.
Removal and evacuation
When breaking into the refrigerant circuit to make repairs or for any other purpose conventional procedures shall be used. However, best practice must be followed since flammability is a consideration. The following procedure shall be adhered to: Remove refrigerant; Purge the circuit with inert gas; Evacuate; Purge again with inert gas; Open the circuit by cutting or brazing. The refrigerant charge shall be recovered into the correct recovery cylinders. The system shall be flushed with OFN to render the unit safe. This process may need to be repeated several times. Compressed air or oxygen shall not be used for this task. Flushing shall be achieved by breaking the vacuum in the system with OFN and continuing to fill until the working pressure is achieved, then venting to the atmosphere, and finally pulling down to a vacuum. This process shall be repeated until no refrigerant is within the system. When the final OFN charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. This operation is vital if brazing operations on the pipe work are to take place. Ensure that the outlet for the vacuum pump is not close to any ignition sources and there is ventilation available.

Charging procedures
In addition to conventional charging procedures, the following requirements shall be followed. Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimise the amount of refrigerant contained in them. Cylinders shall be kept upright. Ensure that the refrigeration system is earthed before charging the system with refrigerant. Label the system when charging is complete (if not already). Extreme care shall be taken not to overfill the refrigeration system. Before recharging the system it shall be pressure tested with OFN. The system shall be leak tested on completion of charging but before commissioning. A follow-up leak test shall be carried out before leaving the site.
Decommissioning
Before carrying out this procedure, the technician must be completely familiar with the equipment and all its details. It is recommended good practice that all refrigerants are recovered safely. Before the task is carried out, an oil and refrigerant sample shall be taken in case analysis is required before re- use of reclaimed refrigerant. Electrical power must be available before the task is commenced.

• Become familiar with the equipment and its operation.
• Isolate system electrically.
• Before attempting the procedure ensure that: Mechanical handling equipment is available, if required, for handling refrigerant cylinders; All personal protective equipment is available and being used correctly; The recovery process is supervised at all times by a competent person; Recovery equipment and cylinders conform to the appropriate standards.
• Pump down the refrigerant system, if possible.
• If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system.
• Make sure that the cylinder is situated on the scales before recovery takes place.
• Start the recovery machine and operate it under the manufacturer’s instructions.
• Do not overfill cylinders. (No more than 80 % volume liquid charge).
• Do not exceed the maximum working pressure of the cylinder, even temporarily.
• When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
• Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.

Labelling
Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant.
Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant).

IMPORTANT SAFETY INSTRUCTIONS

Cylinders shall be complete with pressure relief valves and associated shut- off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants. In addition, a set of calibrated weighing scales shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings and in good condition. Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult the manufacturer if in doubt. The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste Transfer Note arranged. Do not mix refrigerants in recovery units and especially not in cylinders. If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant. The evacuation process shall be carried out prior to returning the compressor to the suppliers. Only electric heating to the compressor body shall be employed to accelerate this process. When oil is drained from a system, it shall be carried out safely.

Gentle Reminder
Check the appliance regularly and refer to TROUBLESHOOTING or contact our customer support if it shows any of the following signs:

• Power cord or plug is damaged.
• Loud noise, unusual smell or excessive heat.

ASSEMBLING YOUR AIR CONDITIONER

Package Contents

Window Requirements

1. This air conditioner is designed to be installed in a standard single-hung or double-hung window with a window width between 25″ and 36″(645mm – 915mm).
2. The air conditioner can be installed without the side panels to fit in a narrow window opening. See the window dimensions. If the air conditioner is installed on a window with a width of 645-720mm, the air conditioner must be installed to the right and the right bracket must be abutted on the air conditioner, otherwise the air conditioner will not operate normally.
3. The lower sash (the lower part of the window that moves up and down) must allow for 14.5″ of vertical clearance when open.
4. All supporting parts must be secured to firm wood, masonry or metal.
5. The electrical outlet must be within reach of the power cord.

NOTE

1. Save the product packaging and installation instructions for future reference.
2. Store the air conditioner in the product box during winter or when not in use.

Getting Started
SUGGESTED TOOLS FOR INSTALLATION (Not included)

CAUTION
Heavy object. Team handling is required during the installation process.
Removing All the Packaging
Carefully remove all the packaging straps and wraps from the air conditioner and accessories.

CAUTION
When handling the unit, be careful to avoid cuts from the sharp metal edges and aluminium fins on the front and rear coils.
NOTE
To be easily installed, both the left and right curtains, curtain frames, top channel, and bottom channel, are pre-assembled in the factory.
Applying the Adhesive Foam Seal
Measure the length of the upper window frame, trim the adhesive foam seal to the appropriate length and apply as shown.

Placing Inside an Open Window
Carefully lift the air conditioner with a helper to the windowsill and pull down the sash, making sure the air conditioner is centred and its bottom rail is flush against the windowsill.

NOTE
The air conditioner should be tilted about 3o for better drainage of condensate and rainwater. Use a level: about 1/3 bubble will show the correct slant.

Securing the Side Brackets

• Extend the side brackets from both sides of the air conditioner onto the left and right window frames and secure by installing four 3/4″ screws as shown.

NOTE
Fix the upper screws first, then the lower screws.

Securing the Side Panels
Pull the side panels inwards to align with the brackets, then secure onto the sides by snapping the jutting points onto the locking pins.

Sealing the Crevices with Plasticene (Optional)
Fill the crevices between the side brackets and panels with the included plastic.

Installing the Screw Into the Top Rail
Install the 1/2″ screw into the top rail of the air conditioner.

Applying the Panel Seals(optional)

• Measure the length extended by the side panels, trim the panel seals to the appropriate length, peel off the backings and apply on the panels on both sides.

Installing the Security Bracket
Attach the security bracket on top of the window sash and secure it with two 1/2″ screws.

Filling the Gap Between Sashes
Trim the non-adhesive foam seal to the appropriate length and insert it between the window sashes.

CAUTION
When opening the window, be sure that the fixed screws are avaliable from the curtain to the window frame.
If AC Is Blocked By Storm Window

1. Add wood as shown, or remove the storm window before the air conditioner is installed.
2. If the Storm Window Frame must remain, be sure the drain holes or slots are not caulked or painted shut. Accumulated Rain Water or Condensate must be allowed to drain out.

For some special window frame, as too thin or too thick, you may need to use the back-up lock frame to do the additional fixed.
If the AC unit can not be screw-fixed well by the steel frame holes, you must use the back-up lock frame to do the additional fixed, as the aluminum alloy window.

1. Install the screw into the top channel of the AC unit, and screw into the window frame.
2. Select two suitable back-up using lock frames, fix them at the bottom of steel frame near the sides with screws.
3. If needed, you can use the other two back-up using lock frames to do the additional fix at the top area.

Installation & Assembly Instructions
Important Considerations

1. Before installing the appliance, you must read the manual carefully to get the safety information and notes.
2. Unit refrigerant charge amount: refer to unit name plate marking.
3. A leak test must be done after the installation is completed.
4. It is a must to do the safety inspection before maintaining or repairing an air conditioner using combustible refrigerant in order to ensure that the fire risk is reduced to minimum.
5. It is necessary to operate the machine under a controlled procedure in order to ensure that any risk arising from the combustible gas or vapor during the operation is reduced to minimum.

Introduction to Refrigerants R32

Site Safety

Operation Safety

Installation Safety

• Refrigerant Leak Detector
• Appropriate Installation Location
• The left picture is the schematic diagram of arefrigerant leak detector.

Please note that

1. The installation site should be in a well-ventilated condition.
2. The sites for installing and maintaining an air conditioner using Refrigerant R32 should be free from open fire or welding, smoking, drying oven or any other heat source higher than 548 which easily produces open fire.
3. When installing an air conditioner, it is necessary to take appropriate anti-static measures such as wear anti-static clothing and/or gloves.
4. It is necessary to choose the site convenient for installation or maintenance wherein the air inlets and outlets of the indoor and outdoor units should be not surrounded by obstacles or close to any heat source or combustible and/or explosive environment.
5. If the indoor unit suffers refrigerant leak during the installation, all the personnel should go out till the refrigerant leaks completely for 15 minutes. If the product is damaged, it is a must to carry such damaged product back to the maintenance station and it is prohibited to weld the refrigerant pipe or conduct other operations on the user’s site.
6. It is necessary to choose the place where the inlet and outlet air of the indoor unit is even.
7. It is necessary to avoid the places where there are other electrical products, power switch plugs and sockets, kitchen cabinet, bed, sofa and other valuables right under the lines on two sides of the indoor unit, and also prevent mechanical damage from occurring.

USING YOUR AIR CONDITIONER

General Operations

NOTE

• In Auto speed, fan speed will adapt to the room temperature.
• In Dry Mode, fan speed cannot be adjusted.

Other Features
Filter Reminder
When the running time of the fan reaches 500 hours, the filter reminder will light up to remind you to clean the filter. To clean the filter, see page below.
Display Auto Off

• Display will dim after 30 seconds (off after 15 seconds in sleep mode).
• Wake up the display with any button.

Memory
If the air conditioner is turned OFF and stays connected to the power, it will operate under the previous settings (except the timer setting) when it is turned ON again.
Drain Water
After proper installation, condensate will not overflow during normal use.
If the fan hits the built-up water and the sound annoys you, please remove the cap located at the back of the air conditioner to drain the water away.
NOTE: Removing the cap may affect the heat transfer efficiency.

How to Control Your AC

Remote Control

For more information on how to use the remote and other functions of your air conditioning unit, or to understand how each mode works, please refer to the next few pages.
Battery Replacement
The air conditioner comes with two batteries for the included remote control. Please be sure to insert them correctly for proper use of the remote.

Note

• Do not mix old and new batteries, or batteries of different types
• Do not leave batteries in the remote if you do not plan on using the device for more than 2 months
• Follow your local city ordinances for information on proper disposal of old and used batteries.
• Do not dispose of batteries in unsorted municipal waste.

Tips for Using the Remote

1. The remote must be used within 26ft of the unit
2. The unit will make a sound when it receives the remote’s signal
3. Curtains, other materials, and even direct sunlight can interfere with the infrared signal receiver.
4. Press “MODE” and “ ^” and hold for 3s to reset the wifi setting.

CLEANING AND MAINTENANCE

Care and Cleaning
Clean your air conditioner occasionally to keep it looking new. Be sure to unplug the unit before cleaning to prevent shock or fire hazards.
Air Filter Cleaning
The air filter should be checked at least once every month to see if it needs cleaning. Never use hot water over 104 F (40ooC) to clean the air filter. Never attempt to operate the unit without the air filter.
Trapped particles and dust can build up in the filter and may decrease airflow as well as cause the cooling coils to accumulate frost. To clean the air filter:

1. Pull the grille out from the indents on both sides at the front and remove the filter inside.
2. Wash the filter using liquid dish soap and warm water. Rinse the filter thoroughly. Gently shake the filter to remove excess water.
3. Let the filter dry completely before placing it into the air conditioner.
4. If you do not wish to wash the filter, you may vacuum the filter to remove the dust and other particles.

Cabinet Cleaning
To clean the air conditioner cabinet:

• Unplug the air conditioner to prevent shock or a fire hazard. The cabinet and front panel of the air conditioner may be dusted with an oil free cloth or washed with a cloth dampened in a solution of warm water and mild liquid soap. Rinse thoroughly with a damp cloth and wipe dry.
• Never use harsh cleaners, wax or polish on the cabinet front.
• Be sure to wring excess water from the cloth before wiping around the controls. Excess water in or around the controls may cause damage to the air conditioner.

Winter Storage
To store the air conditioner when it is not in use for an extended period of time, remove it carefully from the window according to the installation instructions and cover it with plastic or place it in the original box.

TROUBLESHOOTING

sure the air conditioner plug is pushed completely into the outlet.
The fuse is blown/circuit breaker is tripped| Check the house fuse/circuit breaker box and replace the fuse or reset the breaker.
Power failure| – The unit will automatically restart when power is restored.

– There is a protective time delay (approx. 3 minutes) to prevent tripping of the

compressor overload. For this reason, the unit may not start normal cooling for 3 minutes after it is turned back on.

The current interrupter device is tripped| – Press the RESET button located on the power cord plug.

– If the RESET button will not stay engaged, discontinue use of the air conditioner and contact a qualified service technician.

The air conditioner does not cool as

it should

| Air flow is restricted| Make sure there are no curtains, blinds or furniture blocking the front of the air conditioner.
The temperature control may not be set correctly.|

Lower the set thermostat temperature.

The air filter is dirty| Clean the filter. Refer to CLEANING & MAINTENANCE.
The room may be too warm| Please allow time for the room to cool down after turning on the air conditioner.
Cold air is escaping| Check for open furnace registers and cold air returns.
The cooling coils are frozen| Switch to high fan speed and set the thermostat to a higher temperature.
Temperature sensor is not well situated.| Temperature sensor behind the air filter is touching the coil.

Try to move it so it does not contact the cold coil.

The air conditioner is freezing up| Ice blocks the air flow and stops the air conditioner from cooling the room|

Switch to high fan speed and set the thermostat to a higher temperature.

Check the position of the batteries.

The batteries may be dead| Replace the batteries.
Water is dripping outside| Hot and humid weather| This is normal.
Water is dripping OUTSIDE when the unit is cooling| The air conditioner is not correctly tilted outside| Improper installation. Tilt air conditioner slightly to the outside to allow water drainage. Refer to installation instructions.

Water is dripping INSIDE when the unit is cooling

| Moisture removed from the air is draining into the base pan| This is normal for a short period in areas with low humidity and normal for a longer period in areas with high humidity.
Noise when the unit starts| A “da-da” sound may occur for 30 seconds when the unit is turned on due to the compressor starting.| This is normal.

CONTACT

• 800-863-4143
• 9:00AM – 6:00PM PST (Monday – Friday)
• Email: manufacturer@dellausa.com
• www.dellahome.com

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