NewAir ‎NAC14KWHD3 Dual Hose Portable Air Conditioner and Heater USER GUIDE

NewAir ‎NAC14KWHD3 Dual Hose Portable Air Conditioner and Heater

SPECIFICATIONS

MODEL NO.	NAC14KWHD3
VOLTAGE	115V/60HZ
DEHUMIDIFICATION	1.5 pints/hour
COMPRESSOR TYPE	Fixed frequency compressor
REFRIGERANT	R32
FAN SPEEDS	3
TIMER	1-24 hrs
COOLING CAPACITY	14000 BTU (ASHRAE), 8000 BTU (DOE)

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Alternatively, we recommend you attach a copy of your sales receipt below and record the following information, located on the manufacturer’s nameplate on the rear of the unit. You will need this information if it becomes necessary to contact the manufacturer for service inquiries.
Date of Purchase: ___________________________________________
Serial Number: ____________________________________________
Model Number: ____________________________________________

SAFETY INFORMATION & WARNINGS

VERY IMPORTANT: Please do not install or use your portable air conditioner before you have carefully read this manual. Please keep this instruction manual for future reference and for product warranty purposes.
WARNING

• Do not use means to accelerate the defrosting process or to clean the appliance, other than those recommended by the manufacturer.
• The appliance should be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
• Do not pierce or burn the appliance.
• Be aware that flammable refrigerants may not produce an odor.

WARNING (FOR R32)
Specific information regarding appliances with R32 refrigerant gas.

• Thoroughly read all warnings.
• When defrosting or cleaning the appliance, do not use any tools other than those recommended by the manufacturer.
• The appliance should be placed in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
• R32 is a refrigerant gas that complies with European directives on the environment. Do not puncture any part of the refrigerant circuit.
• If the appliance is installed, operated, or stored in an unventilated area, the room must be designed to prevent the accumulation of refrigerant gas should a leak occur. Not doing so could result in the risk of fire or explosion due to ignition of the refrigerant caused by electric heaters, stoves, or other sources of ignition.
• The appliance must be stored in such a way as to prevent mechanical failure.
• Individuals who operate or work on the refrigerant circuit must have the appropriate certification issued by an accredited organization that ensures competence in handling refrigerants according to a specific evaluation recognized by associations in the industry.
• Repairs must be performed based on recommendations from the manufacturer. Maintenance and repairs that require the assistance of other qualified personnel must be performed under the supervision of an individual adequately trained in the use of flammable refrigerants.
• Ducts connected to this appliance must not contain potential ignition sources.
• WARNING – Risk of fire. Flammable refrigerant used. To be repaired only by trained service personnel. Do not puncture refrigerant tubing.
• WARNING – Risk of fire. The flammable refrigerant used. Dispose of properly in accordance with federal or local regulations.
• WARNING – Risk of fire. Flammable refrigerant used. Consult repair manual/owner’s guide before attempting to service this product. All safety precautions must be followed.
• WARNING – Risk of fire. Flammable refrigerant used. Follow handling instructions carefully in compliance with national regulations.

GENERAL SAFETY INSTRUCTION

• This appliance is intended for indoor use only.
• Do not power this appliance through an electrical socket under repair or that has not been installed properly.
• Do not use the unit:
  • A: near a fire source;
  • B: in an area where oil is likely to spill or splash;
  • C: in an area exposed to direct sunlight;
  • D: in an area where water is likely to spill or splash;
  • E: near a bath, laundry area, shower, or swimming pool.
• Never insert your fingers or any other item into the air outlet. Take special care to warn children of these dangers.
• Keep the unit upright during transport, storage, and use.
• Before cleaning the unit, always switch unit off and disconnect the power supply.
• When moving the unit, always switch unit off and disconnect the power supply. Move the unit slowly.
• To avoid the risk of fire, the unit should never be covered while operating.
• Electrical sockets used to power the unit must comply with local electricity safety requirements. If necessary, please check for these requirements.
• Children should be supervised to ensure that they do not play with the appliance.
• If power supply cord is damaged, it must be replaced by the manufacturer, a service agent, or a similarly qualified person to avoid hazard.
• This appliance can be operated by children aged 8 years and above and by persons with reduced physical, sensory, or mental capabilities or lack of experience and knowledge if supervised or given instruction concerning use of the appliance in a safe way and understand the hazards involved. Children should never be allowed to play with the appliance. Cleaning and maintenance should never be performed by children without supervision.
• 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 use of the appliance by a person responsible for their safety.
• The appliance must be installed in accordance with national wiring regulations.
• Recycling: The symbol shown to the right indicates that this product should not be disposed of with other household wastes. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle this item responsibly to promote the sustainable reuse of material resources. To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. Associated retailers can take this product for environmentally safe recycling.
• Contact an authorized service technician for repair or maintenance of this unit.
• Do not pull on, deform, or otherwise modify the power supply cord, or immerse it in water, which could result in damage to the unit and/or cause electrical shock.
• Compliance with national gas regulations must be observed.
• Keep ventilation openings clear of obstruction.
• Any person who is involved with working on or opening a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification.
• Servicing of this unit should only be performed as recommended by the manufacturer. Maintenance and repair requiring the assistance of other skilled personnel should be carried out under the supervision of a person competent in the use of flammable refrigerants.
• Do not turn the unit on or off by inserting or pulling on the power supply cord, as this may cause electric shock or fire.
• Power off and unplug the unit if strange sounds, odors, or smoke emits from it.
• Impedance declaration: These appliances can be connected only to a supply with system impedance no more than 0.367Ω. If necessary, please consult your supply authority for system impedance information.
  Notes:
• If the unit or any of its parts are or become damaged, please contact the dealer or a designated repair shop.
• In case of any damage, please turn off the air switch, disconnect the power supply, and contact the dealer or a designated repair shop.
• In all circumstances, the power cord should be firmly grounded.
• If power cord is damaged, please turn off the air switch and disconnect the power supply. The cord must be replaced by the dealer or a designated repair shop. To avoid the possibility of danger, do not attempt to repair the power cord.

PARTS LIST

1. Louver
2. control panel
3. Front cover
4. Castor
5. Air inlet
6. Drainage outlet
7. Air outlet
8. Power cord
9. Drainage outlet
10. Air inlet

ACCESSORIES

After unpacking, please check that the above-mentioned accessories are included and review their purposes in the installation section of this manual.

ASSEMBLY & INSTALLATION

INSTALLATION

• For proper installation, this appliance should be installed on a level surface.Ensure that the air outlet is not blocked and that all sides of the applianceare clear by at least 2.6 ft. (80cm) (see Fig.8).
• This appliance should not be installed in wet locations such as a laundry roomor bathroom.
• This unit should not be installed in a dry-cleaning facility.
• Electrical sockets supplying power to this appliance should be wired in accordance with local safety requirements.

INTRODUCTION TO EXHAUST HOSE INSTALLATION

Temporary installation

1. Twist both ends of the exhaust hose into the square fixing clip and the flat fixing clip.
2. Insert the square fixing clip into the openings on the back of the air conditioner (see Fig.9).
3. Place the other end of the exhaust hose on a nearby windowsill. (Fig.9)

Installing the mounting plate:
Mounting plate installation accessories: outer plate I, outer plate II, inner plate, screw, gasket, and nut.
Installation of outer plate accessories as shown to the right:

1. Outer plate
2. Screw
3. Gasket
4. Nut

Operating steps:

1. First, set the screw on the inner side of the outer plate of the mounting plate, then place the gasket on the end where the screw extends out of the outer plate. Affix it with the nut (tighten it slightly), place the inner plate into the outer plate, adjust it to a suitable length, and tighten the nut.
   Mounting plate shown below:

Installing the window slider kit:
The window slider kit included with this appliance can accommodate horizontal or vertical installation. As shown in Fig.10 and Fig.10a, check the minimum and maximum size of your window before installation.

1. Install the window kit in the window (Fig.10, Fig.10a);
2. Adjust the length of the window slider kit according to the window width or height and affix it with the dowel.
3. Insert the window connector hose into the hole in the window kit.

WATER TRAY FULL ALARM

The water tray inside the air conditioner has a water level safety switch that controls the water level. When the water level reaches a specified height, the associated indicator light will illuminate. (If water pump is damaged, when the water tray is full, please remove the rubber plug at the bottom of the unit to drain water).

A	Power on/off	4	Dehumidifying
B	Fan speed	5	Fan
C	Temperature up	6	Heat
D	Temperature down	7	ClimaSensor
E	Operation mode	8	Oscillate
F	Timer on/off	9	High fan speed
1	Timing display lamp	10	Medium fan speed
2	Sleep mode	11	Low fan speed
3	Cooling	12	Water full

APPEARANCE AND FUNCTION OF THE CONTROL PANEL

Cooling & Heat pump model

1	Power on/off
2	Timer on/off
3	Operating mode
4	ClimaSensor
5	Temperature up
6	Temperature down
7	LED display
8	Oscillate
9	Fan speed
10	Sleep mode

1	Receiver signal
2	Cooling
3	Dehumidifying
4	Fan
5	Heating
6	ClimaSensor
7	Auto swing
8	Timing
9	Timer on/off
10	Sleep mode
11	Fan speed
12	Temperature display

Notes:

• Do not drop the remote control.
• do not place the remote control in a location exposed to direct sunlight.

INTRODUCTION

Before operating this appliance:

1. Find a place with a power supply nearby.
2. As shown in Fig.5 and Fig.5a, install the exhaust hose securely and adjustthe window position as needed (see detailed instructions above).
3. Connect drain hose securely (only for heating model).
4. Insert power supply cord into a grounded AC115V/60Hz socket.
5. Press the POWER button to turn on the unit.

BEFORE USING

Notice:
Operating temperature range:

IMPORTANT: Before using this appliance, check that the exhaust hose has been mounted properly.
CAUTION – For cooling and dehumidifying operations:

• When using the cooling and dehumidifying functions, maintain an interval of at least 3 minutes between each power ON/OFF.
• Ensure that unit’s the power supply meets the above specified requirements.
• Ensure that the electrical socket is intended for AC use.
• Do not share power supply socket with other appliances.
• The power supply for this appliance must be AC115V/60Hz.

COOLING OPERATION

• Press the MODE button until the COOL icon appears.
• Press the DOWN or UP buttons to select your desired room temperature (61°F-88°F).
• Press the FAN button to select fan speed.

DEHUMIDIFYING OPERATION

• Press the MODE button until the DEHUMIDIFY icon appears.
• Automatically set the selected temperature to current room temperature minus 2°F.
• Automatically set the fan to LOW fan speed.
  FAN OPERATION
• Press the MODE button until the FAN icon appears.
• Press the FAN button to select fan speed.

HEATING OPERATION

(This function is not available for the cooling only model.)

• Press the MODE button until the HEAT icon appears.
• Press the DOWN or UP buttons to select your desired room temperature (61°F-88°F).
• Press the FAN button to select fan speed.

TIMER OPERATION

To set a timer for powering on:

• Press the TIMER button and select a desired time for the unit to power on by using the time settings buttons. You can also select a desired temperature.
• “Preset ON Time” will be displayed on the operation panel.
• “ON Time” can be set for any time from 0-24 hours.
• Press the TIMER button again to confirm the settings. Timer indicator light will illuminate.
• To deactivate the timer function, press the TIMER button until the timer indicator light turns off.

To set a timer for powering off:

• When the air conditioner is on, press the TIMER button and select a desired OFF time by using the time settings buttons.
• “Preset OFF Time” will be displayed on the operation panel.
• “OFF time” can be set for any time from 0-24 hours.
• Press the TIMER button again to confirm the settings. Timer indicator light will illuminate.
• To deactivate the timer function, press the TIMER button until timer indicator light turns off.

AUTO SWING

After the unit turns on, press the OSCILLATION button. The louver will then swing continuously up and down. By pressing this button again, the movement will stop, and the louver will remain in the stopped position.

SLEEP MODE

• While in cooling mode, press the SLEEP button on the remote to set the desired starting temperature. The set temperature will increase by 2°F after one hour and 4°F after 2 hours.
• While in heating mode, press the SLEEP button on the remote to set the desired starting temperature. The set temperature will decrease by 2°F after one hour and 4°F after 2 hours.
• Press the SLEEP button again to cancel these settings.

WATER DRAINAGE

Water Tray Full Alarm
The water tray inside the air-conditioner has a water level safety switch that controls the water level. When the water level reaches a specified height, the associated indicator light will illuminate. (If water pump is damaged, when the water tray is full, please remove the rubber plug at the bottom of the unit, to drain water).
Continuous Drainage

• If you plan to leave this unit unused for an extended time, please remove the rubber plug from the drainage hole at the bottom of the unit and connect a drain hose to the lower fixing clip.
• You can also drain the water this way when the unit is operating in HEAT mode.
• If water pump is damaged, continuous drainage can be used by attaching a drain hose to the unit and placing it in a drain or sufficient receptacle. The unit can function properly this way as well.
• If water pump is damaged, intermittent drainage can also be used. Under this condition, pay attention to when the water full indicator light comes on. Then, connect a drain hose to the lower fixing clip to allow all water in the water tray to drain out. The unit can function properly this way.

CLIMASENSOR FUNCTION

• The “CLIMASENSOR” function allows you to control the temperature of the unit automatically from the temperature sensor inside of the remote control.
• You can turn the “ClimaSensor” function on or off from the remote control.
• When this function is on, the unit will control the temperature of the room based on the temperature sensor inside of the remote control (the room temperature sensor inside of the machine will be temporarily inactive).

This function will turn off if the unit has not received a signal from the remote control in 30 minutes. The unit will then switch back to the room temperature sensor inside of the unit to control the temperature.

CLEANING & MAINTENANCE

CLEANING RECOMMENDATIONS

1. Before cleaning, be sure to power off and disconnect the unit from its power supply outlet.
2. Do not use gasoline or other chemicals to clean the unit.
3. Do not wash the unit directly internally.
4. If the unit is damaged, please contact the dealer or a repair technician.

AIR FILTER

• The air filter should be cleaned once every two weeks to prevent it from becoming clogged with dust or dirt.
• Dismounting: Open the air inlet grille and remove air filter.
• Cleaning: Clean the air filter with neural detergent in lukewarm water (104°F) and let it air dry in a shaded place.
• Mounting: Place the air filter into the inlet grille and replace all components as they were.

CLEANING THE SURFACE OF THE UNIT

Clean the surface of the unit with a neutral detergent and wet cloth, then wipe it with a dry cloth.

TROUBLESHOOTING

Problem	Possible Cause	Solution
1.Unit does not start when pressing on/off button	– Water tank is full (check for blinking water full indicator light).	Empty the water tank.
	– Room temperature is higher than set temperature (while in heating mode)	Reset the temperature.
	– Room temperature is lower than set temperature (while in cooling mode).	Reset the temperature.
2. Unit is not adequately cooling the room	– Doors or windows are open.	Make sure all windows and doors are closed.
	– There are heat sources inside the room.	Remove the heat sources if possible.
	– Exhaust hose has become disconnected or blocked.	Reconnect or clean the exhaust hose.
	– Temperature setting is too high.	Reset the temperature.
	– Air inlet is blocked.	Clean the air inlet.
3. The unit is noisy	– The ground is uneven or not sufficiently level.	Place the unit on flat, level ground.
	– (If the sound is like that of flowing water) Sound is coming from the flowing refrigerant inside the air conditioner.	This is normal.
4. E0 Code	Room temperature sensor failed	Replace room temperature sensor (note: unit will still work without replacement).
5. E1 Code	Condenser temperature sensor failed	Replace condenser temperature sensor.
6. E2 Code	Water tank full when cooling	Empty the water tank.
6. E3 Code	Evaporator temperature sensor failed	Replace evaporator temperature sensor.
7. E4 Code	Water tank full when heating	Empty the water tank.

INSTRUCTIONS FOR REPAIRING APPLIANCES CONTAINING R32

GENERAL INSTRUCTIONS

1. IMPORTANT: Prior to working on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized. The following precautions should be complied with prior to conducting repair work on this appliance.
2. Work procedure: Work should be performed in a controlled way and environment to minimize the risk of flammable gas or vapor being present while work is performed.
3. General work area: All maintenance staff and others working in the nearby area should be instructed on the nature of the work being performed. Work in confined spaces should be avoided. The area around the workspace should be sectioned off. Ensure that the conditions within the area have been made safe by controlling and/or removing flammable materials.
4. Checking for the presence of refrigerant: The work area should be checked with an appropriate refrigerant detector prior to and during work to ensure the technician is aware of potentially flammable agents in the atmosphere. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants (i.e., non-sparking, adequately sealed, or intrinsically safe).
5. Presence of fire extinguisher: If any work involving heat is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment should be readily available. Have a dry powder or CO2 fire extinguisher adjacent to the immediate work area.
6. No ignition sources: No person carrying out work on a refrigeration system that involves exposing any pipe work that contains or has contained flammable refrigerants should use any sources of ignition in the work area or while conducting this work. The use of any sources of ignition (such as an open flame) could 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 processes flammable refrigerant could possibly be released into the surrounding space. Prior to work taking place, the area around the equipment should be surveyed to ensure that there are no flammable hazards or ignition risks. “No Smoking” signs should be displayed.
7. Ventilated area: Ensure that the work area is either outside or, if indoors, that it is adequately ventilated before opening the refrigeration system or conducting any work involving heat. Ventilation should continue during the full duration of the work and should safely disperse any released refrigerant.
8. Checks to the refrigeration equipment: When electrical components are being repaired or replaced, they should be fitted for their intended purpose and to the correct specification. At all times, the manufacturer’s maintenance and service guidelines should be followed. If in doubt, consult the manufacturer’s technical department for assistance. The following checks should 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 should be checked for the presence of refrigerant; markings on the equipment should continue to be visible and legible, and markings and signs that are illegible should be adequately corrected; refrigeration pipe or components should be installed in a position where they are unlikely to be exposed to any substance which could 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.
9. Checks to electrical devices: Repair and maintenance to electrical components should include initial safety checks and component inspection procedures. If a problem exists that could compromise safety, no electrical supply should be connected to the circuit until the problem is satisfactorily dealt with. If the problem cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution should be used. This should be reported to the owner of the equipment so that all parties are aware of the circumstances. Initial safety checks shall include: checking that capacitors are discharged (this should be done in a safe manner to avoid possibility of sparking); checking that there are no live electrical components or wiring exposed while charging, recovering, or purging the system; checking that there is continuity of grounding.
10. Every maintenance, service, and repair procedure that could impact safety should only be carried out by competent persons according to Annex HH (competence of service personnel as indicated by training carried out by national training organizations accredited to teach relevant national competency standards. The achieved competence should be documented by a certificate).
    All personnel engaging in work on the refrigeration system should bear a valid certification awarded by an authorized organization and the qualifications for dealing with refrigeration systems as recognized by this industry. If other technicians are needed to maintain or repair the appliance, they should be supervised by a person who holds the qualifications for working with flammable refrigerants.

REPAIRS TO SEALED COMPONENTS

1. During repairs to sealed components, all electrical supplies should be disconnected from the equipment being worked on 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 should be located at the most critical point to warn of a potentially hazardous situation.
2. Particular attention should be paid to the following to ensure that by working on electrical components, casings will not be altered in such a way that will affect the level of protection. Dangers include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc. Ensure that electrical 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 substances. Replacement parts should always be in accordance with manufacturer specifications.
3. 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

1. 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.
2. Intrinsically safe components are the only types that can be worked on while in the presence of a flammable materials. The test apparatus should yield an appropriate 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

1. 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 account for the effects of aging or continual vibration from sources such as compressors or fans.

DETECTION OF FLAMMABLE REFRIGERANTS

1. Under no circumstances should potential sources of ignition be used in the search for or detection of refrigerant leaks. A halide torch (or any other detector using an open flame) should never be used.

LEAK DETECTION METHODS

1. The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detectors can be used, but their sensitivity may not be adequate or may require recalibration. (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.
2. 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 pipework.
3. NOTE: Examples of fluid leak detection methods are
   • bubble method,
   • fluorescent agents method
4. If a leak is suspected, all open flames should be removed/extinguished immediately. If a refrigerant leak is found that requires brazing, all of the refrigerant should be recovered from the system or isolated (by means of shut off valves) in a part of the system remote from the leak. Removal of refrigerant should be carried out according to section 7 below.

REMOVAL AND EVACUATION

1. When opening the refrigerant circuit to make repairs (or for any other purpose) standard procedures should be used. However, for flammable refrigerants it is important that best practice be followed. The following procedure should be followed:
   • safely remove refrigerant following local and national regulations;
   • purge the circuit with inert gas;
   • evacuate (optional for A2L);
   • purge the circuit with inert gas (optional for A2L);
   • open the circuit by cutting or brazing.
2. The refrigerant charge should be recovered into the correct recovery cylinders if venting is not allowed by local and national codes. For appliances containing flammable refrigerants, the system should be purged with oxygen-free nitrogen to render the appliance safe for flammable refrigerants. This process might need to be repeated several times. Compressed air or oxygen should not be used for purging refrigerant systems.
3. For appliances containing flammable refrigerants, refrigerant purging should be achieved by breaking the vacuum in the system with oxygen-free nitrogen and continuing to fill until the working pressure is achieved, then venting to the atmosphere, and finally pulling down to a vacuum (optional for A2L). This process should be repeated until no refrigerant remains within the system (optional for A2L). When the final oxygen-free nitrogen charge is used, the system should be vented down to atmospheric pressure to enable work to take place.
4. Ensure that the outlet for the vacuum pump is not close to any ignition sources and that there is adequate ventilation.

CHARGING PROCEDURES
In addition to conventional charging procedures, the following requirements should be followed:

1. Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines should be as short as possible to minimize the amount of refrigerant contained in them.
2. Cylinders should be kept upright.
3. Ensure that the refrigeration system is grounded prior to charging the system with refrigerant.
   • Label the system when charging is complete (if it has not already been labeled).
   • Extreme care should be taken not to overfill the refrigeration system.
   • Prior to recharging the system, it should be pressure tested with OFN. The system should be leak tested on completion of charging but prior to commissioning. A follow up leak test should 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 components. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample should 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 undertaken. Please adhere to the following steps for carrying out this procedure:

1. Become familiar with the equipment and its operation;
2. Isolate electrical system;
3. Ensure that: 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;
4. Pump down refrigerant system, if possible;
5. If a vacuum is not available, make a manifold so that refrigerant can be removed from various parts of the system;
6. Make sure that cylinder is situated on the scales before recovery takes place;
7. Begin the recovery process and work in accordance with manufacturer’s instructions;
8. Do not overfill cylinders (no more than 80% volume liquid charge);
9. Do not exceed the maximum working pressure of the cylinder, even temporarily;
10. When the cylinders have been filled correctly and the process is complete, make sure that the cylinders and the equipment are removed from the site promptly and all isolation valves on the equipment are closed off;
11. Recovered refrigerant should not be charged into another refrigeration system unless it has been cleaned and checked.

LABELLING

1. Equipment should be labelled stating that it has been de-commissioned and emptied of refrigerant. The label should be dated and signed.
2. Ensure that there are labels on the equipment stating that the equipment contains flammable refrigerant.

RECOVERY

1. 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 labeled for that refrigerant (i.e., special cylinders for the recovery of refrigerant). 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.
2. The recovery equipment should be in good working order with a set of instructions concerning the equipment at hand and should be suitable for the recovery of flammable refrigerants. In addition, a set of calibrated weighing scales should 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.
3. 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.
4. 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, this process should be carried out safely.

COMPETENCE OF SERVICE PERSONNEL

General

• Procedural information additional to standard information regarding refrigeration appliance installation, repair, maintenance, and decommission procedures is required when an appliance with flammable refrigerants is in question.
  Training for these procedures is carried out by national training organizations and manufacturers that are accredited to teach relevant national competency standards.
• The achieved competence should be documented by a certificate.

Training
Training should include the following:

• Information about the explosion potential of flammable refrigerants to show that flammable substances may be dangerous when handled without care.
• Information about potential ignition sources, especially those that are not obvious, such as light switches, vacuum cleaners, or electric heaters.

Information about various safety concepts:

• In the case of unventilated enclosure– (see Clause GG.2) Safety of the appliance does not depend on ventilation of the appliance housing. Switching off the appliance and opening the housing has no significant effect on the safety. Nevertheless, it is possible that leaking refrigerant could accumulate inside the enclosure and that flammable refrigerant could be released when the housing is opened.
• In the case of ventilated enclosure – (see Clause GG.4) Safety of the appliance depends on ventilation of the housing. Switching off the appliance and/or opening the enclosure has a significant effect on safety. Care should be taken to ensure sufficient ventilation before housing is opened.
• Ventilated room – (see Clause GG.5) Safety of the appliance depends on the ventilation of the room. Switching off the appliance or opening the housing has no significant effect on the safety. The ventilation of the room should not be shut off during repair procedures.
• Information about the concept of sealed components and sealed enclosures according to IEC 60079-15:2010.

Information about correct working procedures:

• Commissioning
  • Ensure that the floor area is sufficient for the refrigerant charge or that the ventilation duct is assembled in the correct manner.
  • Connect the pipes and carry out a leak test before charging with refrigerant.
  • Check safety equipment before using.
• Maintenance
  • Portable equipment should be repaired outside or in a workshop specially equipped for servicing units with flammable refrigerants.
  • Ensure sufficient ventilation at the repair location.
  • Be aware that malfunction of the equipment could be caused by refrigerant loss and therefore a refrigerant leak is possible.
  • Discharge capacitors in a way that will not create sparking. Be aware that the standard procedure for short circuiting capacitor terminals usually creates sparks.
  • Reassemble sealed enclosures accurately. If seals are worn, replace them.
  • Check safety equipment before using.
• Repair
  • Portable equipment shall be repaired outside or in a workshop specially equipped for servicing units with flammable refrigerants.
  • Ensure sufficient ventilation at the repair location.
  • Be aware that malfunction of the equipment might be caused by refrigerant loss and that a refrigerant leak is possible.
  • Discharge capacitors in a way that will not create sparking.
  • When brazing is required, the following procedures should be carried out in the following order:
    • Safely remove the refrigerant following local and national regulations. If the recovery is not required by national regulations, drain the refrigerant to the outside. Take care that the drained refrigerant will not cause any danger. In doubt, one person should guard the outlet. Take special care that drained refrigerant will not float back into the building.
    • Purge the refrigerant circuit with oxygen-free nitrogen.
    • Evacuate the refrigerant circuit.
    • Purge the refrigerant circuit with nitrogen for 5 min (not required for A2L refrigerants).
    • Evacuate again (not required for A2L refrigerants).
    • Remove parts to be replaced by cutting or brazing.
    • Purge the braze point with nitrogen during the brazing procedure required for repair.
      Carry out a leak test before charging with refrigerant.
• Decommissioning
  • The refrigerant charge should be removed before decommissioning.
  • Ensure sufficient ventilation at the equipment location.
  • Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak is possible.
  • Discharge capacitors in a way that will not create sparking.
  • Remove the refrigerant. If the recovery is not required by national regulations, drain the refrigerant to the outside. Take care that the drained refrigerant will not cause any danger. In doubt, one person should guard the outlet. Take special care that drained refrigerant will not float back into the building.
  • Evacuate the refrigerant circuit.
  • Purge the refrigerant circuit with nitrogen for 5 min.
  • Evacuate again.
  • Fill with nitrogen up to atmospheric pressure.
  • Put a label on the equipment that the refrigerant is removed.
• Disposal
  • Ensure sufficient ventilation in the workspace.
  • Remove the refrigerant. If the recovery is not required by national regulations, drain the refrigerant to the outside. Take care that the drained refrigerant will not cause any danger. In doubt, one person should guard the outlet. Take special care that drained refrigerant will not float back into the building.
  • When flammable refrigerants are used,
    • Evacuate the refrigerant circuit.
    • Purge the refrigerant circuit with oxygen-free nitrogen.
    • Evacuate again (not required for A2L refrigerants).
    • Cut out the compressor and drain the oil.
  • Evacuate the refrigerant circuit.
  • Purge the refrigerant circuit with nitrogen for 5 min.
  • Evacuate again.
  • Cut out the compressor and drain the oil.
• Transportation, marking, and storage for units that employ flammable refrigerants
• ATTENTION: 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 applicable transport regulations.
  Marking of equipment using signs
• Proper signage for similar appliances used in work areas is generally addressed by local regulations which will provide the minimum requirements for safety and/or health signage in work locations.
• All required signs are to be maintained and employers should ensure that employees receive suitable and sufficient instruction and training on the meaning of appropriate safety signs and the actions that need to be taken in connection with these signs.
• The effectiveness of signs should not be diminished by too many signs being placed together.
• Any pictograms used should be as simple as possible and contain only essential details.

Disposal of equipment using flammable refrigerants

• See national regulations.

Storage of equipment/appliances

• The storage of equipment should be in accordance with manufacturer instructions.
• For storage of packed (unsold) equipment, package protection should be constructed such that mechanical damage to the equipment inside the package will not cause a refrigerant leak.
• The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.

LIMITED MANUFACTURER’S WARRANTY

This appliance is covered by a limited manufacturer’s warranty. For one year from the original date of purchase, the manufacturer will repair or replace any parts of this appliance that prove to be defective in materials and workmanship, provided the appliance has been used under normal operating conditions as intended by the manufacturer.
Warranty Terms:
During the first year, any components of this appliance found to be defective due to materials or workmanship will be repaired or replaced, at the manufacturer’s discretion, at no charge to the original purchaser. The purchaser will be responsible for any removal or transportation costs.
Warranty Exclusions:
The warranty will not apply if damage is caused by any of the following:

Power failure

• Damage in transit or when moving the appliance
• Improper power supply such as low voltage, defective household wiring, or inadequate fuses
• Accident, alteration, misuse or abuse of the appliance such as using non-approved accessories, inadequate air circulation in the room or abnormal operating conditions (extreme temperatures)
• Use in commercial or industrial applications
• Fire, water damage, theft, war, riot, hostility or acts of God such as hurricanes, floods, etc.
• Use of force or damage caused by external influences
• Partially or completely dismantled appliances
• Excess wear and tear by the user

Obtaining Service:
When making a warranty claim, please have the original bill of purchase with the purchase date available. Once confirmed that your appliance is eligible for warranty service, all repairs will be performed by a Newair™ authorized repair facility. The purchaser will be responsible for any removal or transportation costs. Replacement parts and/or units will be new, re-manufactured or refurbished and is subject to the manufacturer’s discretion. For technical support and warranty service, please email support@newair.com.

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