VALBERG EX-AC7-21 Room Air Conditioners Instruction Manual

ROOM AIR CONDITIONERS
REGULATORY INSTRUCTIONS

EX-AC7-21 Room Air Conditioners

Read the user manual after reading this regulatory warning booklet.

Safety instructions

• Please read the instructions carefully before using the unit and save them for future reference. If this unit is given to someone else, please hand over this manual as well.

• Only use this unit as described in this usage manual. Any mishandling or use contrary to these instructions will release the manufacturer or dealer from any liability.

• WARNING! Failure to follow the safety and operating instructions may result in a risk of fire and/or bodily injury.

• This unit is not intended for use by children aged 0-8 years. This unit can be used by children aged 8 or older if they are supervised continuously. This unit cannot be used by people with reduced physical, sensory or mental capabilities, or with lack of knowledge and experience, unless they are supervised and have been given instruction by a person responsible for their safety on the safe use of the unit and understand the hazards involved. Cleaning, maintenance or connecting the unit to the power supply must not be undertaken by children under the age of 8.

• When this unit is used by or near children, they must be supervised to ensure that they do not play with the unit.

• WARNING! This unit is not a toy. Keep the unit and its power cable out of the reach of children (under the age of 8) and pets.

• This unit is intended for household use and similar uses, such as:
  – In farmhouses.
  – By customers in hotels, motels and other residential-type environments.
  – In bed and breakfast-type environments.

• Any other use (professional, commercial, etc.) is not permitted. It can be used outdoors in dry conditions in an area with a suitable power source.

• Before connecting the unit to the mains socket, check:
  – that the unit, power cable and plug are not damaged. If the unit, power cable or plug is damaged, do not use the unit and return it to your dealer for repair.
  – that the power source’s voltage and the rated voltage correspond to the specifications indicated on the unit’s nameplate.

• This unit uses highly flammable R-290 (propane) refrigerant gas. The unit’s housing is sealed and should never be opened, except by a qualified technician.

• Risk of fire, damage, injury or death! Never dispose of the refrigerant with household waste. R-290 gas is flammable and heavier than air. If it escapes from the unit, it will fall into the lower areas. It is odourless. If R-290 gas leaks or is suspected of leaking because the unit is damaged, a hissing sound can be heard or the air conditioner’s dehumidifier is producing hot air, immediately turn off the unit and unplug it. Open the windows, evacuate the area and call the fire department. Do not let anyone re-enter the room until a qualified technician has indicated that it is safe to do so.

• Never use the unit in an area where there are open flames (including people smoking cigarettes) and/or flammable gases or liquids (including appliances containing flammable gases), near any potential ignition sources or flammable objects, such as curtains, tablecloths, wallpaper and towels.

• This unit has no user-serviceable parts. Do not try to disassemble or repair the unit yourself. Should the unit become damaged or malfunction, repairs must only be performed by qualified technicians who possess a valid certificate from an industry accredited authority that recognises their competence as far as safely handling refrigerants is concerned. If in doubt, contact the dealer or manufacturer for assistance.

• Check that the unit has been set up correctly before using it.

• The unit is powered when connected to the mains socket. Do not leave the unit unattended while it is plugged in. Always switch off the unit and unplug it from the mains supply to fully turn it off.

• Do not start or stop the unit by plugging or unplugging it.

• Always unplug the unit whenever it is not in use, and before cleaning, moving or maintaining it.

• The unit, power cable and power socket must be easily accessible at all times.

• Unplug the unit during a thunderstorm.

• Arrange the power cable in such a way that it cannot be tripped over or become entangled. Never cover over the power cable or place it under an object, such as a carpet.

• Never let the power cable come into contact with a hot surface or open flame. Keep the unit and its power cable away from heat sources, such as radiators, stoves, gas hobs or ovens.

• Make sure that the power cable is not resting against sharp edges or corners.

• Always check that the power cable has not been crushed or bent, especially at the points in which it is connected to the unit and plug.

• Do not use the unit when your hands are wet or you are standing on a wet floor. Never touch the power plug with wet hands.

• Before moving the unit, always manually drain it. Use a cloth to remove any condensation or drops of water. It is of the utmost importance to check that the unit is dry, as this will prevent the water from accidentally spilling onto the unit’s electrical components.

• Do not pull on the power cable to unplug it.

• WARNING! This unit is classified as a Class I device. To reduce the risk of electric shock, fire or injury, it must be connected to a properly earthed mains socket. Do not use an adapter.

• Never use the unit with extension cords or multiple sockets; furthermore, never add other high-power appliances to the same circuit as the unit, as it could overheat and pose a fire hazard.

• Fully unwind the power cable to prevent the unit from overheating and make sure that it is never placed underneath or around the same.

• Place the unit on a stable, level and heat-resistant surface.
  Make sure that the unit is not tilted and cannot fall onto its side.

• Never place any objects on top of the unit.

• Do not climb or sit on the unit.

• Never direct the air flow directly at a person.

• Make sure that the unit is always well ventilated and at least 50 cm away from all objects, including walls, curtains and other units.

• Never cover vents or air inlets/outlets.

• Do not insert fingers or other objects into any of the unit’s openings. Never touch the unit’s aluminium fins or air inlets.

• Do not connect this unit to an external timer, remote control system (other than the remote control supplied with the unit) or to a circuit that is regularly turned on and off.

• Only use the unit with the original accessories supplied.
  The use of any accessories not recommended or sold by the manufacturer, may pose a risk of fire, electric shock or injury.

• Never pierce or burn the unit, even after use.

• Make sure that the unit has been installed in accordance with your local gas regulations. Do not install the unit in a space smaller than 13 m².

• Make sure that all piping is protected from possible damage.

• Never speed up the defrosting process.

• If you are using a drain hose, make sure that the temperature remains well above freezing to prevent the unit from cracking or becoming damaged.

• Clean the unit regularly to keep it dust-free. For more information on how to clean your unit, see the CLEANING AND MAINTENANCE section of the usage manual. Failure to regularly clean and maintain this unit can pose several risks and/or reduce the unit’s service life.

• Warning! To protect against fire or electrical hazards, never immerse the unit, power cable or plug in water or any other liquids. Never rinse them under the tap or expose them to dripping or splashing water.

• Do not store any materials other than the manufacturer’s recommended accessories with this unit when not in use. Store the unit indoors, in a cool, dry place.

• There is a risk of explosion should batteries be thrown into a fire or hot oven, mechanically crushed or cut.

• Extreme high or low temperatures to which the batteries may be subjected during use, storage and transport:
  – During use: -10 °C to +45 °C
  – During storage: -10 °C to +45 °C
  – During transport: -10 °C to +45 °C

• Should the battery be left in an extremely hot surrounding environment, it could explode or start leaking flammable liquid or gas.

• A battery subjected to extremely low atmospheric pressure may explode or start leaking flammable liquid or gas.

CAUTION! Risk of injury from improper use. Any accident and/or damage resulting from non-compliance with the above-mentioned instructions is your responsibility. Neither ELECTRO DEPOT nor the dealer can be held responsible for any product damage or bodily injury resulting from failure to observe the procedures.
Information on servicing
The manual shall contain specific information for service personnel who shall be instructed to undertake the following when servicing an appliance that employs a flammable refrigerant.
Checks to the area
Prior to 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 so as 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 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 presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to 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 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 in relation to a refrigeration system which 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, repairing, removing and disposal, during which flammable refrigerant can possibly be released to the surrounding space. Prior to work taking 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 in accordance with 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 pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which 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 in a safe manner to avoid 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.

Repairs to sealed components
During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.
Ensure that apparatus is mounted securely.
Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of preventing the ingress of flammable atmospheres. Replacement parts shall be in accordance with the manufacturer’s specifications.
NOTE: The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components do not have to be isolated prior to working on them.
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 ageing or continual vibration from sources such as compressors or fans.
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 a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of 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.
Refrigerant leakage contributes to climate change. Refrigerant with lower global warming potential (GWP) would contribute less to global warming than a refrigerant with higher GWP, if leaked to the atmosphere. This appliance contains a refrigerant fluid with a GWP equal to 3. This means that if 1 kg of this refrigerant fluid would be leaked to the atmosphere, the impact on global warming would be 3 times higher than 1 kg of CO 2 , over a period of 100 years. Never try to interfere with the refrigerant circuit yourself or disassemble the product yourself and always ask a professional.

Removal and evacuation

When breaking into the refrigerant circuit to make repairs – or for any other purpose – conventional procedures shall be used. However, it is important that best practice is 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 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 absolutely 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 prior to 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.

Prior to recharging the system it shall be pressure tested with OFN. The system shall be leak tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site.

Decommissioning

Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant. It is essential that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation.
b) Isolate system electrically.
c) 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.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system.
f) Make sure that cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with manufacturer’s instructions.
h) Do not overfill cylinders. (No more than 80 % volume liquid charge).
i) Do not exceed the maximum working pressure of the cylinder, even temporarily.
j) 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.
k) 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 decommissioned 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 are 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). Cylinders shall be complete with pressure relief valve 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 leakfree 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 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.

Annex CC
Transport of equipment containing flammable refrigerants Attention is drawn to the fact that additional transportation regulations may exist with respect to equipment containing flammable gas. The maximum number of pieces of equipment or the configuration of the equipment, permitted to be transported together will be determined by the applicable transport regulations.
Marking of equipment using signs
Compliance with local regulation.
Disposal of equipment using flammable refrigerants
See National Regulations.
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.

Disposing of your old device

SEPARATE COLLECTIONS FOR ELECTRONIC AND ELECTRICAL DEVICES
** This product must not be disposed of or recycled with other household waste when it reaches the end of its useful life.
The product and its packaging should be collected and recycled separately from other waste.
WHAT SHOULD I DO WITH MY WASTE?**
Please dispose of your waste in accordance with the advice below to reduce the impact of your new purchase on the environment.
You are legally responsible for separating the waste associated with this product (and any accessories) so that it can be recycled, including any instructions or/or packaging. Electric and electronic appliances should not be sorted or recycled together with other household waste.
Keep used products and packaging out of the reach of children, as they can pose a safety hazard.
Please retain the instructions and any other notices throughout the service life of the device, and include these documents with the device if it is passed on to third party.
For packaging and other notices, please refer to the recycling instructions on the main packaging, and to the advice available on the Internet.
For the product itself, please refer to the instructions available on the Internet.
If you do not have Internet access, please contact your local authority for advice on how to sort and recycle your waste.

For your children’s safety, please store your old devices in a safe place outside your home until they are collected.
EN 50419 :2006 LOGO
SEPARATE COLLECTIONS FOR BATTERIES
**** The batteries must be changed in accordance with current disposal regulations. Please take the used batteries to a dedicated recycling centre, in order for them to be disposed of in an environmentally friendly manner.

Battery recycling

• This unit contains an internal lithium battery that could explode or release dangerous OK chemicals.
• To reduce the risk of fire or burns, never disassemble, burn, bury, crush, drill or shortcircuit batteries.
• Do not throw the batteries out with household waste.
• To preserve the environment, dispose of batteries in accordance with local regulations.

WARRANTY CONDITIONS
This product is guaranteed against faults caused by defects in manufacturing or the materials used for a period of two years, starting from the date of purchase. This warranty  goes not cover defects or damage caused by failure to install the device correctly, incorrect use of the product, or excessive wear and tear.
proof of purchase required.

ELECTRO DEPOT
1 route de Vendeville
59155 FACHES-THUMESNIL – FRANCE
02/2022-01

Documents / Resources

| VALBERG EX-AC7-21 Room Air Conditioners [pdf] Instruction Manual
EX-AC7-21 Room Air Conditioners, EX-AC7-21, Room Air Conditioners, Air Conditioners
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References

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