Argo Einar Plus Portable Air Conditioner

Operating Instructions

Read the instructions carefully before operating the appliance or carrying out maintenance work. Observe all the safety instructions; failure to do so may lead to accidents and/or damage. Store these instructions in a safe place for future reference.

The Refrigerant R290

⚠️ [Flammable Gas Symbol] Appliance is filled with flammable gas R290.

? [Read Owner Manual] Before installing and using the appliance, read the owner manual.

? [Read Installation Manual] Before installing the appliance, read the installation manual.

?️ [Contact Service Center] Any repairs you need, contact the nearest authorized Service Centre and strictly follow manufacturer's Service Manual.

R290 Properties

• Refrigerant R290 = 3 GWP (Global warming potential). Flammable and inodorous. Can lead to explosions under certain conditions, but flammability is very low and ignited only by fire.
• Non-polluting, no harm to the ozone layer, no effect on the greenhouse effect. Good thermodynamic features for high energy efficiency.

Warning

• Do not accelerate defrosting or clean in ways not recommended by the manufacturer.
• Contact authorized Service Centre for repairs. Unqualified personnel are dangerous.
• Store in a room without continuous ignition sources (e.g., open flames, operating gas/electric heaters).
• Do not pierce or burn.
• Install, use, and store in rooms larger than 15 m².
• Refrigerant gases have no smell.

General Operating and Safety Instructions

• This appliance is a local air conditioner designed for domestic use.
• Use only as described in this manual.
• Ensure voltage and frequency (220-240V~50 Hz) match the available power source.
• Fuse style 5ET or SMT 250V, electricity passing through the fuse cannot be above 3.15A.
• Usable by children aged 8+ and persons with reduced physical, sensory, or mental capabilities, or lack of experience/knowledge, if supervised and aware of hazards.
• Children shall not play with the appliance.
• Cleaning and user maintenance by children only with supervision.
• Ensure the electricity system can deliver the operating current required by the air conditioner, plus that normally absorbed by other appliances. Refer to the data plate for maximum power input.
• Connection to the electricity grid must follow current installation standards.
• Ensure automatic switches and system protection valves can withstand a start-up current of 6A (normally for less than 1 second).
• The system socket must always have an efficient earth connection.
• Make sure the plug is fully inserted. Do not use multiple adapters. Do not touch the plug with wet hands. Keep the plug clean.
• Do not use the plug to start/stop the air conditioner; use the POWER button on the remote control or control panel.
• Do not install in rooms where water splashes may occur (e.g., laundry rooms).
• Children 8+ and persons with reduced physical, sensory, and mental abilities, or lacking know-how/experience, can use it under supervision, ensuring they are aware of risks.

Precautions

• Before moving or cleaning, ensure the device is unplugged from the socket.
• Do not move the air conditioner while it is operating; turn it off, check for condensate build-up, and empty if necessary.
• To turn off: set the remote control to OFF and remove the plug from the socket. Pull on the plug only, not the cord.
• Do not use the appliance if the cord or plug are damaged. If the power supply cord is damaged, it must be replaced by the manufacturer, dealer, or a similarly qualified person.
• Keep the unit away from fire, possible fire sources, flammable, or explosive objects.
• Do not leave the unit unattended while operating; turn it off and unplug it.
• If a drainage hose is used, the ambient temperature must not be lower than 0°C to prevent water leakage.
• Do not splash or pour water on the air conditioner.
• Do not insert any objects into the air conditioner as the fan turns at high speed.
• Ensure air circulates freely around the unit. Do not cover the air intake and delivery grilles with drapes or other means.

Warnings

• The air conditioner must be positioned at least 50 cm from the wall or any other obstacles, on a flat and stable surface, to avoid water leaks.
• The air conditioner is fitted with a system for protecting the compressor from overload; it starts approximately 3 minutes after its previous stoppage.
• Wait at least 3 minutes before starting the unit to prevent compressor damage.
• In the event of an anomaly, switch the appliance off and unplug it from the socket. Do not dismantle or attempt to repair or modify the product.
• Do not expose the air conditioner to direct sunlight, as the color of the materials may change; the appliance may overheat, causing the protection mechanism to intervene and switch it off.
• Do not use insecticides, oils, detergents, or spray paints near the appliance; do not use aggressive chemical detergents to clean the casing, as this may damage the finish and color.
• Close all open windows to maximize air conditioning efficiency.
• The manufacturer will not be held liable if safety and accident prevention rules are not observed.

Description of the Appliance

Components

• 1. Control panel
• 2. Handle
• 3. Side air inlet
• 4. Mode of operation colored LED ring
• 5. Horizontal air louver
• 6. Wheel
• 7. Plug compartment
• 8. Cable reel
• 9. Upper filter
• 10. Connection of exhaust hose
• 11. Hole for condensate drainage (in dehumidification mode)
• 12. Lower air filter
• 13. Hole for continuous condensate drainage (in cooling mode)

Operating Limits

• Cooling: 5°C D.B./35°C D.B.
• Heating: 5°C D.B./35°C D.B.
• Dehumidification: 5°C D.B./35°C D.B.
• Room temperature adjustment range: 16°C D.B./32°C D.B.

Pre-Operating Checks and Operation

The following space must be maintained to ensure the operating efficiency of the portable air conditioner. [Diagram description: A white, vertical portable air conditioner with a large front grille and wheels is shown. Arrows indicate a minimum clearance of 50 cm from all sides to walls or obstacles.]

Appliance Start-Up

Open the packaging and pull out the box. Remove the product and the other elements supplied.

Components Supplied

• Remote controller
• Fitting to apply on the unit to which connect the exhaust pipe of the air
• Hose of expulsion of the air
• Terminal flat fitting to be placed between window knockers
• Condensate drainage pipe to be used to empty the internal tank
• Circular fitting for kit porthole to be positioned between the final part of the tube and the porthole
• Porthole kit with cap (2 pcs)

Use with End Fitting for Window

• 1. Stretch the flexible hose sufficiently so that it reaches the outside (max 1.5 m) and hook it to the rear part of the air conditioner. [Diagram description: The exhaust hose is shown connected to the rear of the air conditioner unit.]
• 2. Open the window and lock one of the two leaves with the handle. Rest the terminal connection on the fixed leaf, bring the other leaf of the window close. [Diagram description: A window is partially open, with the terminal fitting inserted into the gap, and the other leaf of the window is brought close to it.]

Use with Window Unit Kit

• 1. To make the hole in the glass, it is also advisable to take the porthole kit accessory to the glazier. [Diagram description: A glass pane with a circular hole cut into it.]
• 2. Insert the porthole into the window. [Diagram description: The circular porthole fitting is shown inserted into the window pane.]
• 3. Insert the circular connector for the porthole kit into the retractable hose and insert the retractable hose with the circular connector into the porthole without the cap. [Diagram description: The flexible hose is connected to the porthole fitting.]
• 4. When not in use, disconnect the hose and close the porthole with the cap. [Diagram description: The porthole fitting is covered with its cap.]

Avoid tight bends or folds in the hose. If the air conditioner is not used for prolonged periods, disconnect the pipe and plug the window unit.

How to Use the Appliance

This appliance can be used for Cooling, Heating, Dehumidification, and Ventilation. Before using the appliance, leave it in an upright position for at least two hours. Plug the power cord into an appropriate power outlet (220-240~V). Insert the batteries into the remote controller, observing the polarities. Select the desired operating mode from the remote controller.

The air conditioner is equipped with a protection system which causes the unit to activate in Cooling, Dehumidification, and Heating mode only after an interval of approximately 3 minutes from the selection. Even when passing from one mode to another, the fan continues to operate, but the compressor stops to restart after 3 minutes. This start delay protects the compressor from overload. This appliance is equipped with an automatic defrosting system which intervenes when the unit is running hot and ice forms on the coil. The compressor stops for 10 minutes, after which the appliance resumes normal operation.

Modes of Operation

Cooling, Heating, Fan

[Illustration description: The portable air conditioner unit is shown with the exhaust hose connected, indicating operation in cooling, heating, or fan mode.]

Dehumidifying

[Illustration description: The portable air conditioner unit is shown without the exhaust hose connected, indicating operation in dehumidifying mode.]

THE DRAINAGE TUBE MUST BE CONNECTED to the appliance AT ALL TIMES: the only exception is when the appliance is used in dehumidification mode only, in which case the appliance should be left to discharge directly into the room for maximum efficiency (see the "Dehumidification Mode" paragraph). Periodically clean the easily removable air filters located on the side of the product to keep the air conditioning efficient.

1. Cooling Mode (COOL)

• Press the MODE button to select Cooling. The LED on the control panel lights up.
• The temperature adjustment range goes from 16°C to 32°C with 1°C steps.
• In this mode, every time the unit is switched off by pressing the POWER button, the appliance stores the set temperature and when it is switched on again, it will keep the setting.
• In cooling mode, the fan speed is high by default, and the temperature present in the room is shown on the display. Use the UP/DOWN buttons to select the desired temperature.
• In this mode, it is possible to adjust the ventilation speed (Speed), set the Timer, and activate the Sleep function.
• For quieter operation, reduce speed to low.

2. Heating Mode (HEAT)

• Press the MODE button to select Heating. The LED on the control panel lights up.
• The temperature adjustment range goes from 16°C to 32°C with 1°C steps.
• In this mode, every time the unit is switched off by pressing the POWER button, the appliance stores the set temperature and when it is switched on again, it will keep the setting.
• In heating mode, the fan speed is low by default, and the temperature present in the room is shown on the display. Use the UP/DOWN buttons to select the desired temperature.
• In this mode, it is possible to adjust the ventilation speed (Speed), set the Timer, and activate the Sleep function.
• For quieter operation, reduce speed to low.

3. Dehumidification Mode (DRY)

• Press the MODE button to select the Dehumidification mode. The LED on the control panel lights up.
• The temperature is controlled by the electronic board and cannot be adjusted.
• In this mode, each time the POWER button is pressed, the unit switches off, the appliance saves the settings and retains them when it is switched on again.
• The humidity % adjustment range is 35-80%.
• The fan speed cannot be adjusted.

NOTE: The air conditioner does not cool the room when operating as a dehumidifier. When the appliance is used as a dehumidifier, the flexible pipe must not be connected. For maximum dehumidification efficiency, leave the rear discharge attachment free to discharge directly into the environment. The dehumidification mode is recommended during autumn and winter. If used during summer, it is best to leave the flexible pipe attached so that the hot air is discharged towards the outside rather than into the room. During dehumidification, continuous drainage should be implemented (see the next chapter, "HOW TO ELIMINATE CONDENSATE").

4. Fan Mode (FAN)

• Press the MODE button to select ventilation until the corresponding icon ? appears.
• In this mode, the fan speed can be adjusted.
• The temperature cannot be adjusted.

How to Eliminate Condensate

This appliance automatically vaporizes the condensate in cooling mode. When the air conditioner works in Cooling mode, it is not necessary to have continuous drainage of the condensate; only in particular climatic conditions in which the humidity rate in the air is very high can water deposit inside the unit.

In Heating mode, the condensate is not vaporized automatically; it will therefore be necessary to empty the internal tank periodically. Alternatively, the drainage can be arranged from the lower hole located on the back of the unit, taking care to position the unit on a small rise in order to ensure the necessary slope for the drainage pipe.

When the internal tank is full, the air conditioner goes into stand-by mode within about 10 seconds, and the display will show the message "P1", while the ? icon will light up on the control panel, signaling that it has been filled. The buttons on the control panel are not active and the appliance stops working. The operation LED ring located on the front of the unit lights up red. To restore the unit, empty the tank.

Cooling and Heating Drainage

Make sure that, when the unit works in cooling and heating mode, the rubber closing cap that closes the drain hole located at the bottom on the back is correctly positioned. To empty the tank, turn off the air conditioner and unplug it. Remove the cap from the rear drain hole, connect the small condensate drain tube, which is supplied, and place the other end of the tube above a normal drain. Make sure the hose is free from twists and bends. The pipe must have a descending trend. Close the drain with the cap and resume using the air conditioner.

Dehumidification Drainage

Warning: when using the air conditioner in dehumidification mode, it is advisable to always set up continuous drainage to ensure maximum dehumidification efficiency. Connect one end of the PVC tubing (provided) to the top drain hole and the other end above a drain.

Drainage Types

• Manual drainage (Cooling, Heating): [Illustration description: The rear of the unit is shown with a water plug indicating manual drainage.]
• Continuous drainage (Dehumidification): [Illustration description: The rear of the unit is shown with a drainage hose connected to a drain, indicating continuous drainage.]

Function Controls

By Remote Controller

How to Insert Batteries

Open the battery door on the back of the remote controller, slide to open the cover following the direction indicated by the arrow. Place the batteries in the remote controller, taking care to check the correct positioning of the polarities. Put the cover back. Use alkaline batteries (type AAA, LR03/1.5V), compliant with Battery Directive no. 2006/66/EC and amendments by Directive 56/2013/EU. Do not use new batteries with dead batteries. If the remote controller is not used for a long time, remove the batteries. Make sure you dispose of batteries properly.

Warnings for Batteries

• Batteries should not be exposed to heat sources such as fire, sun, or similar sources.
• Remove batteries if they start to heat up. If you know you will not use the appliance for a long time, remove the batteries. Batteries must be installed correctly in the battery compartment.
• When removing batteries that are at the end of their life or damaged, comply with national regulations for disposal.
• In the event of a battery fluid leak, remove all batteries, taking care not to let the leaked fluid come into contact with skin or clothing. If liquid from the battery gets on your skin or clothing, wash the skin with water immediately.
• Before inserting new batteries, thoroughly clean the battery compartment with a dry paper towel, or follow the battery manufacturer's recommendations for cleaning. Only use batteries of the same size and type.
• Caution: Danger of explosion if battery is replaced by a type other than that specified.
• Improper use of batteries can cause them to leak, overheat, or explode. This liquid is corrosive and can be toxic. It can cause skin and eye burns, and is harmful to ingest.

To Reduce Risk of Injury:

• Keep batteries out of the reach of children.
• Do not heat, open, puncture, cut, or throw batteries into fire.
• Do not mix old and new batteries or batteries of different types.
• Do not leave metal objects that could come into contact with the battery terminals and therefore could heat up and/or cause burns.

Information for Correct Disposal of Batteries

Dispose of depleted batteries separately from unsorted waste at designated recycling centres or retailers. Separate disposal prevents negative effects on the environment and human health due to inadequate disposal, and allows for recovering and recycling constituent materials, resulting in significant savings in energy and resources. The crossed-out dustbin symbol ?️ indicates the separate disposal obligation.

Control by Remote Controller

Remote Control Buttons

• 1. POWER button
• 2. HEATING MODE button
• 3. AUTO MODE button (not active)
• 4. SLEEP button
• 5. TEMP UP/DOWN buttons
• 6. CHILD LOCK button
• 7. °C/F° DISPLAY TEMPERATURE button
• 8. DRY MODE button
• 9. DISPLAY LIGHTING button
• 10. WIFI button
• 11. TIMER button
• 12. SWING button
• 13. SPEED button
• 14. COLD MODE button
• 15. MODE button
• 16. REMOTE CONTROLLER DISPLAY

Control by Control Panel

Control Panel Buttons

• 1. POWER button
• 2. SPEED button
• 3. MODE button
• 4. SLEEP button
• 5. TIMER button
• 6. SWING/WIFI button
• 7. UP/DOWN buttons
• 8. DISPLAY

Function of Buttons

1. POWER BUTTON

Press this button on the control panel or remote controller to turn the unit on or off. The unit beeps. All the LEDs of the buttons light up on the control panel, and then turn off after a few seconds, while the LED of the POWER button remains on, but with a reduced intensity of brightness. When the unit is switched on, the ambient temperature is shown, and the unit enters Stand-by mode. Press this button again to start the appliance operation. The default settings are: Cooling mode, low fan speed, and the display shows the temperature present in the room.

2. SPEED BUTTON

Press this button on the control panel to select the desired fan speed from Low, Medium, High, Auto, in the following circular sequence: →→??????. The corresponding LEDs light up on the control panel according to your selection. In Auto mode, the fan speed LEDs all light up at the same time. The Auto fan speed can be selected only in the Cooling and Heating modes. The Auto speed works by modulating the fan speed based on the temperature set by the user and on that present in the room: If the difference between the set temperature and the room temperature is greater than 4°C, the fan speed will be high. If the difference between the set temperature and the room temperature is greater than 2°C or less than or equal to 4°C, the fan speed will be medium. If the difference between the set temperature and the room temperature is less than or equal to 2°C, the fan speed will be medium. When the Speed button is selected on the remote control, the fan speed will appear on the remote controller display as follows: Low (?) - Medium (??) - High (???).

3. MODE BUTTON

Press this button on the control panel to select the operating mode among: Heating, Cooling, Dehumidification (Dry), Ventilation (Fan) in the following circular sequence: ❄️???. The corresponding LEDs on the display light up on the control panel according to the selection made. The LED ring located on the front of the appliance changes color according to the selected operating mode: Cooling (Cool): blue; Heating (Heat): orange; Dehumidification (Dry): white; Ventilation (Fan): Green. On the remote controller, it is possible to directly select the desired operating mode by pressing the button: COOL (the ❄️ icon lights up on the remote controller display) - HEAT (the ? icon lights up on the remote controller display) - DRY (the ? icon lights up on the remote controller display). To set FAN mode, press MODE button on remote controller, the ? icon lights up and Fn will be displayed).

4. SLEEP BUTTON

Press this button on the control panel or remote controller. When Sleep mode is selected, the LEDs on the control panel light up, while the Sleep LED on the control panel remains on continuously. It is possible to adjust the operating mode, except in the Ventilation mode, and the temperature. The ventilation speed, on the other hand, cannot be adjusted and the appliance operates constantly at low speed. The Sleep function allows the unit to operate silently, saving energy.

In cooling mode, after 1 hour of operation, the temperature increases by 1°C; after the second hour, the temperature increases by another 1°C. After 5 hours of consecutive operation, the temperature still increases by 1°C. After a total of 10 hours of consecutive operation, the appliance exits Sleep mode and resumes normal operation.

In Heating mode, after 1 hour of operation, the temperature decreases by 1°C; after the second hour, the temperature decreases again by 1°C. After 5 hours of consecutive operation, the temperature decreases again by 1°C. After a total of 10 hours of consecutive operation, the appliance exits Sleep mode and resumes normal operation.

5. TIMER BUTTON

By control panel:

• When the air conditioner is off, press "TIMER" to set a time to turn on the unit. Press "UP" or "DOWN" to set the hour, and press "TIMER" again to confirm.
• When the air conditioner is on, press "TIMER" to set a time to turn off the unit. Press "UP" or "DOWN" to set the hour, and press "TIMER" again to confirm.
• To set the switch-off or switch-on time of the appliance, press the Timer button; "00" will flash on the display for three seconds. With the UP/DOWN buttons, it is possible to select the desired time. Timer time selection range is 0-24 hours. Then press the Timer button to confirm the chosen time.
• To cancel the Timer function, press and hold the button for about 3 seconds.

By remote controller:

• On the remote controller, when this function is activated, the ? icon remains lit on the remote controller display.
• To activate the On timer, press the button twice; "01" will be shown on the remote controller display. It is therefore possible, with the UP/DOWN buttons, to set the appliance on time up to 24 hours. When the set time flashes on the display for 5 seconds, it indicates that the setting has been made correctly.
• To activate the Off Timer, press the button twice; the remote controller display will show the time remaining before switching off.
• To cancel the Timer function, hold down the button for about 3 seconds and the icon on the display will turn off.

6. SWING / WIFI BUTTON

Swing Function: When the unit is on, press this button on the control panel or on the remote controller to select the horizontal automatic swing of the air flaps; the LED lights up on the control panel. Press this button again to stop the swinging of the flaps, which will then remain fixed in the same position. The LED on the control panel will turn off. It is possible to manually adjust the vertical flaps by directing them to the desired position.

Wifi Function: With the unit switched on, on the control panel or on the remote controller, press and hold this button for 5 seconds to activate the Wifi function. The icon ? flashes rapidly for about 2 seconds. After configuring and connecting the appliance to the Wifi network, the icon is always on on the control panel. If the configuration does not take place correctly, the icon on the control panel will turn off within 2 minutes. To deactivate the Wifi function, press and hold this button for about 5 seconds on the remote controller or control panel; the icon will turn off.

7. UP/DOWN BUTTONS

Press these buttons on the control panel or on the remote controller to adjust the temperature (each time you press, the temperature increases or decreases by 1°C) and set the Timer (each time you press, the time increases or decreases by 1 hour).

Functions Activated by Remote Controller Only

Child Lock Function

Control Panel: With the unit on, press the Swing key and the Timer key simultaneously for 3 seconds to activate or deactivate the control panel lock function. The LED on the control panel lights up. To deactivate this function, press and hold two buttons for about 3 seconds or switch the device off and on again.

Remote Controller: To activate or deactivate this function, press the LOCK button and the display will show "Lo".

Temperature Display Function

On the remote controller, press the C°/F° key to change the temperature display from C° to F°. This function can only be selected in cooling and heating modes. This function can also be activated from the control panel by pressing the UP/DOWN buttons simultaneously for about 3 seconds.

Display Lighting

Press the Display button on the remote controller to turn the remote controller display light on or off.

Memory Function

In the event of a blackout, when restarted, the unit operates in the same mode previously set.

Temperature Display and Errors

The temperature set in cooling mode will appear on the display, while if the unit operates in dehumidification mode, the room temperature will appear on the display.

Error Codes

WiFi Guide

Information on the App "Smart Life - Smart Living"

The "Smart Life - Smart Living" app is available for Android and iOS. Scan the corresponding QR code to get directly to the download.

[QR Code 1 Description: QR code for downloading the Smart Life App.]

[QR Code 2 Description: QR code for downloading the Smart Life App.]

Information on How to Use the App

This appliance allows you to operate the appliance via your home network. A prerequisite is a permanent WIFI connection to your router and the free app "Smart Life - Smart Living".

Setup Steps

• 1. Install the "Smart Life - Smart Living" app. Create a user account.
• 2. Activate the WIFI function in the settings of your appliance.
• 3. Place the appliance at a distance of about 5 meters to your router.
• 4. Long press the "Swing/Wifi" button to start the network configuration; when the WIFI indicator ? flashes, you can connect the WIFI.

WIFI Connection

• When WIFI indicator flashes, select "+" and "Air Conditioner", and follow the instructions on the display.
• If the configuration was successful, the Wifi LED remains on on the control panel.
• Now you can operate the device via the app.
• To disconnect: Press and hold the Swing/Wifi button for about 5 seconds; the appliance disconnects, the WIFI indicator goes off.

Care and Maintenance

WARNING! Before carrying out any cleaning or maintenance operations, unplug the appliance.

1. Cleaning the Air Filters

• The air filters must be checked at least once every two weeks of operation. Operation with dirty or clogged filters always causes a reduction in the efficiency of the air conditioner and can cause serious problems.
• To remove the two filters, located on the side of the unit, remove them completely from their housing. Use a vacuum cleaner to remove dust from the filters. If this is not enough, wash the filters with warm water and possibly neutral detergent, rinse them with cold water, and let them dry naturally before putting them back in their place.

2. Cleaning the Casing

Use a damp and soft cloth to clean the outer surface of the appliance. Do not use excessively hot water, solvents, petrol, or other aggressive chemical compounds, talcum powder, or brushes: these may damage the surface or color of the casing. Remove any stains using lukewarm water with a little neutral detergent. Do not pour water onto the air conditioner to clean it, as this may damage its internal components or cause a short-circuit.

3. Storage

When the air conditioner is not expected to be used for a long time, clean the filters before storing it away. Keep the appliance in a vertical position at all times. Do not place heavy objects on top of the air conditioner. It is advisable to protect the appliance with a plastic sheet.

4. Transport

Transport the air conditioner in the vertical position. Should this not be possible, rest it on its right-hand side; when the appliance reaches its final destination, place it immediately in the vertical position and wait at least 4 hours before operating it in cooling mode.

5. Power Cord Check

For complete safety, regularly check the condition of the power cord; should it be damaged as a result of wear, contact the Service Centre to replace it.

Tips for Maximizing Comfort and Minimizing Consumption

Check That:

• The unit intake and delivery grilles are always free.
• The air filters are always clean; a dirty filter will decrease the passage of air and reduce the unit's performance.
• All doors and windows are closed, so as to avoid infiltration of unconditioned air.
• The flexible pipe is correctly positioned, without tight bends or curves.
• The room temperature is above 5°C for the cooling, heating, and dehumidifying mode.

Regulation (EU) No. 517/2014 – F-GAS

The unit contains R290, a natural greenhouse gas with global warming potential (GWP) = 3 - Kg. 0,3 = 0,0009 Tons CO2 equiv. Do not release R290 into the atmosphere.

Information for Correct Disposal of the Product

At the end of its working life, this equipment must not be disposed of as household waste. It must be taken to special local community waste collection centres or to a dealer providing this service. Disposing of electrical and electronic equipment separately avoids possible negative effects on the environment and human health deriving from an inappropriate disposal and enables its components to be recovered and recycled to obtain significant savings in energy and resources. In order to underline the duty to dispose of this equipment separately, the product is marked with a crossed-out dustbin ?️.

Specialist's Manual

Aptitude Requirement for Maintenance

• 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 in accordance with an industry recognised assessment specification.
• 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.

Safety Preparation Work

The maximum refrigerant charge amount is shown on the following table a (Note: Please refer to the nameplate for the charging quantity of R290).

Table a - Maximum charge (kg)

Security Checks

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 toxic or flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with all applicable 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 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 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 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.

Checks for Installations Using Flammable Refrigerants

• The actual refrigerant charge 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:

• 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 the apparatus is mounted securely.
• Ensure that seals or sealing materials have not degraded to the point 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 can 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 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 searching 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 all refrigerant systems. Electronic leak detectors may be used to detect refrigerant leaks but, in the case of flammable refrigerants, 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. For appliances containing flammable refrigerants, 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, for flammable refrigerants, 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. For appliances containing flammable refrigerants, 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 purging refrigerant systems. For appliances containing flammable refrigerants, 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 that ventilation is 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 the appropriate purging gas. 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.

Steps:

• 1. Become familiar with the equipment and its operation.
• 2. Isolate system electrically.
• 3. 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.
• 4. Pump down refrigerant system, if possible.
• 5. If a vacuum is not possible, 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. Start the recovery machine and operate 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 completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
• 11. 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. For appliances containing flammable refrigerants, 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 all appropriate refrigerants including, when applicable, 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 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.

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