COOLZY-GO PC9RL Personal Portable Air Conditioner User Guide

GO PC9RL Personal Portable Air Conditioner
User Guide

PC9RL Personal Portable Air Conditioner

Coolzy products are distributed in the European Union and UK by Close Comfort International Pte Ltd, Singapore, UEN 201527973E.
USER GUIDE AND WARRANTY

| This product contains a small amount of R290 refrigerant with negligible global warming impact. The refrigerant is flammable. Read the safety precautions first! Avoid using this product in a wet environment. Ensure that anyone using this product is aware of normal safety precautions for household electric appliances.| Caution
Risk of fire
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PARTS

LED DISPLAY PANEL

REMOTE

| Cooling
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| Fan
| Sleeping
| Timer ON/OFF
| Temperature
| Automatic air flow speed
| High speed
| Medium speed
| Low speed

Micro climate temperature setting
The temperature of the cool air at the outlet is dependent on the environment temperature and humidity, usually 8 to 14 degrees less than the ambient temperature. The thermostat turns off the compressor if the temperature of the air returning to the air conditioner is below the set temperature. Press ▲ to increase or ▼ to reduce the set temperature.
SLEEP

1. Press “SLEEP” to set sleep function. The fan changes to low speed for sleeping. Press again to cancel sleep function.
2. The temperature setting will increase by 0.5 °C after half an hour and 2 °C after 2 hours.
3. When you turn off the unit, the sleep function will be cancelled automatically.

TIMER
The timer is used to turn off the unit automatically after the setting time is over.

1. Press the “TIMER” key to set the number of hours of desired operating time.
2. Once the set time has come to an end, the unit will turn off automatically.
3. Press the “POWER” key to turn off the machine and cancel the timer.

AUTO
The fan speed changes automatically. When the ambient temperature is 2 or more degrees higher than the set room temperature, the machine will run with high fan speed. It will automatically switch to medium and low fan speed when the ambient temperature gets closer to the set temperature.

GETTING STARTED

IMPORTANT
Always keep Coolzy upright. It may have been stored or transported on it’s side or laid flat by mistake, so please stand it upright for at least 12 hours before plugging it into power and turning it on. Failing to do so may damage the unit.

1. After removing Coolzy from the box, place it in an upright position.
2. Remove the cable from the drawer at the back of the unit and insert the plug into a wall outlet. Make sure you push the drawer fully back in so it aligns with the back panel.Drape a curtain as shown to exclude light when sleeping. Make sure that the room air intake is at least 15 cm from the wall!
3. Open the warm air deflector fully. This will turn on the unit and the compressor will start.
4. Open the cold air deflector and allow 2 minutes for the air coming out to feel cold. Use the remote control to adjust fan speed. Keep the temperature setting at 17 °C unless the air flow feels too cold.
5. Keep a door or window open so fresh air circulates unless it is extremely hot or windy outside.For a small room, place the unit near an open window or doorway.
6. Avoid using a fan nearby as it can disrupt Cooley’s gentle air flow.
7. The adjustable nozzle (“focus enhancer”) extends the range of cooling and, after fitting the separate transparent deflector flap, enables a higher angle of air flow.

Position Coolzy close enough for comfort. The ideal range of distance is 1.5 – 3 metres. Arrange the angle of the cold air deflector so cool air flows around face and shoulders.

For sleeping, arrange your unit about 15 cm from the end of the bed. Adjust the cold air deflector and adjustable nozzle to the desired angle so the cool air flows over your face and upper body. It also works with larger beds for two people.

Use the optional Igloo tent for a more intense cooling effect and insect protection. We recommend using the Igloo tent for sleeping if indoor temperature is over 27 °C.

DEHUMIDIFICATION

Coolzy condenses water from the room air in humid weather conditions. Normally this water evaporates into the air emerging from the warm air outlet, improving the cooling power.
To collect the condensed water instead, open the cable drawer and remove the stopper just above it. This will allow some of the condensed water to collect in the drawer. When the cable drawer is full, the white water drop indicator comes on and Coolzy will pause. Carefully remove the cable drawer and empty the water. The cable drawer can store about two litres of condensed water.
Remember to replace the stopper for normal, high efficiency cooling.

ADJUSTABLE NOZZLE

Coolzy has an adjustable nozzle that adjusts the cool air throw (Focus Enhancer). Push the blue nozzle down for a more focused air flow that cools at a greater distance. Lift the nozzle for a gentler flow.

Make sure the nozzle is pushed down before closing the cool air deflector. For a higher angle of air flow, attach the transparent flap to the end of the cool air deflector. Make sure the straight edge is facing you and the two notches slide under the cool air deflector.
To remove, simply pull the flap off.
Tips

• Adjust the angle of the cool air deflector to ensure that cool air flows past face and neck. Adjust nozzle to about 45° for best cooling effect.
• Turn off fans when using Coolzy. Drafts from nearby windows and fans may disrupt the air jet.
• Pull the nozzle upright for use with the bed tent. If the nozzle is in the down position, the cool air at the bottom of the tent will mix with the warm air at the top.
• In humid weather, it is normal for moisture to condense on parts of the nozzle.

USER MAINTENANCE

We recommend inspecting at least the return air inlet filter once every two weeks. Once there is a noticeable amount of dust, clean all three filters by rinsing them under running water.
Remove the adjustable nozzle to access the foam filter beneath it. Replace the nozzle after cleaning the foam filter.
In dusty locations, consider arranging for an air conditioning technician to clean the inside before the summer season.
The refrigerant circuit is permanently welded: there is no need to recharge the gas.

RETURN AIR INLET FILTER| REMOVING THE NOZZLE|

ROOM AIR INLET FILTER

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INDICATOR LIGHTS

Power (green light)
This shows that the electrical power is on. When the green light flashes, Coolzy is waiting 1 – 2 minutes for the compressor to start cooling.
Water drop (white light)
In normal conditions, all the water condensed inside the cooler will evaporate into the air emerging from the warm air outlet. This evaporation increases the cooling performance in humid conditions.
If you remove the stopper, following the dehumidification instructions, condensed water flows into the cable drawer instead. The water drop light comes on when the cable drawer is full of water.
The water drop light also comes on if the cable drawer is not fully inserted and flush with the back panel.
When it is extremely humid, greater than 95% lasting for several hours, water can overflow from the cooler into the cable drawer.
If the water drop light is on, carefully remove the cable drawer and empty any water. Make sure you push the drawer fully back in so it aligns with the back panel.
Snowflake (blue light)
The cooler temperature so low that there is a risk that ice may form, damaging the tubes in Coolzy. Some combinations of low temperature, humidity and atmospheric pressure can lead to frosting. Allow the fan to operate for a few minutes to warm up Coolzy. Also, check the air inlet filters for excessive dust build-up. Ensure that there is nothing blocking the either of the air inlets such as a curtain, cushion or bedding.
Thermometer (red light)
The compressor has overheated. Coolzy can be used in ambient temperatures up to 40 °C. Above that temperature, the compressor may overheat. Wait for 10 – 20 minutes and try again. Avoid using Coolzy in direct sunlight. Check the air inlet filters for excessive dust build-up. Ensure that there is nothing blocking the either of the air inlets such as a curtain, cushion or bedding.

TROUBLESHOOTING

Symptom 1 – Green light is not on when trying to turn on Coolzy
Make sure the warm air deflector is fully open. Check to see if the power supply is properly connected and on. If the power cord seems properly connected, try a different power supply. Make sure you push the cable drawer fully back in so it aligns with the back panel.
Symptom 2 – Green light is on with no cooling
The green light flashes, the fan runs and the compressor waits to start cooling for about 90 seconds. This delay protects the compressor from damage. If the green light is on and the fan is running, and there is no apparent cooling after 2 minutes, check that Coolzy is in cooling mode. Press the ‘FUNC’ button on the remote until the snowflake icon appears to activate cooling mode. Reduce the temperature setting because the thermostat may be preventing the compressor from starting.
Symptom 3 – Water sloshing noise
In extremely high humidity, the production of condensed water may exceed the capacity to evaporate water at the condenser heat exchanges. As more water accumulates than in normal conditions, there may be a perceptible sound of water cascading off the condenser at the back of the machine. This is normal behaviour. If the sound is annoying, consider removing the rubber bung temporarily. The water will drain into the cable drawer. However the machine will stop cooling when the cable drawer is full of water.
Symptom 4 – Room seems to warm up
As you become accustomed to the cool micro climate that Coolzy provides for you, the other parts of the room may seem to be warmer. There may be a slight increase in air temperature in the space above the warm air deflector, but this is normally not enough to heat up the lower part of the room.
Keep a door or window open. This is a healthy option. Position Coolzy’s warm air outlet to face the open window or door so warm air can flow out more easily. Unlike normal room air conditioners, Coolzy works just best with open doors or windows and fresh air circulating.
A slight temperature increase can occur in a small room, especially if the windows are closed. The setup instructions show how to minimize this effect. Visit www.coolzy.com for more suggestions to improve ventilation.
Symptom 5 – Gradual loss of cooling
Dust accumulating on the air filters will reduce the cooling. Clean all three air filters following the instructions in this guide.

SUPPORT
www.coolzy.com provides FAQs and helpful information, updated frequently, along with your local retailer and service agent information and your local customer support phone number.
Ask any general, support, warranty or technical questions by emailing us at contact@coolzy.com.

SPECIFICATIONS

COOLZY|
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Model number| PC9RL
Power source| 220 – 240 V AC, 50 Hz
Minimum operating voltage| 185 V
Rated power input| 430 W (40 °C, 35% RH)
Typical power input| 340 W (33 °C, 80% RH)
Compressor type| Rotary
Cooling capacity *| 800 W – 1100 W (3300 – 4500 BTU/hr)
Cool air flow rate| 80 – 115 m³/hr variable
Cool side temperature reduction| 8 – 16 °C
Refrigerant| R290, 109 g
Power cord, storage drawer †| 4 m, 2.5 litres
Operating environment (indoors)| 20 °C – 40 °C
Width| 273 mm (packed 310)
Depth| 385 mm (packed 410)
Height| 550 mm (packed 610)
Weight| 15.4 kg (packed 17 kg)
Noise ‡| 46 – 54 dBA
Wheels| 4 caster wheels
Remote control| infrared – temperature, fan speed adjust
Plumbing and pipes needed| None
Consumables needed| None
Filter cleaning| Check every 2 weeks

• Cooling power ranges up to 1100 Watt with automatic evaporation of condensed water, depending on local temperature and humidity. Electricity consumption varies depending on temperature and humidity.
  † Drawer can optionally be used to collect condensed water.
  ‡ Apparent noise level in bedroom, depends on fan speed and furnishings.
  Fuse parameters of the machine
  Type: 5ET or SMT Voltage: 250V Current: 3.15 A

WARRANTY

Coolzy and accompanying accessories are warranted against defects in design, materials and workmanship. The warranty period is 2 years from the date of original purchase, provided the purchaser registers their details at https://www.coolzy.com/eu/support/warranty/. Without purchase registration, the warranty period is one year. This warranty is valid for the European market.
Defects in equipment covered by this warranty will be repaired or replaced at Close Comfort’s option at no charge to the purchaser for parts or direct repair labour. The purchaser must return the product(s) to an authorized Coolzy dealer or agent for warranty repairs. Home service is not provided. The purchaser is responsible for all transportation costs and in-transit insurance associated with returning the device to the authorized repair centre. In some cases, the purchaser will be able to make the necessary repair or replacement.
Any part or equipment replaced under this warranty will be warranted in accordance with the following provisions with the terms of this warranty for the remainder of the original warranty period, or 60 days from return, whichever is greater.
THE PROVISIONS OF THIS LIMITED WARRANTY ARE IN LIEU OF ANY OTHER WRITTEN WARRANTY, EXPRESS OR IMPLIED, WRITTEN OR ORAL (INCLUDING WARRANTIES RELATING TO MERCHANT ABILITY OR FITNESS FOR A PARTICULAR PURPOSE). IN NO EVENT SHALL THE SELLER OR CLOSE COMFORT BE LIABLE FOR ANY SPECIAL, INCIDENTAL CONSEQUENTIAL OR INDIRECT DAMAGES. Nothing in the limited warranty limits or restricts any rights granted by European or national consumer legislation.
Warranty Exclusions

1. Damage, trouble, or unsatisfactory performance of the device caused by faulty or improper external wiring, improper power supply, voltage fluctuations, power surges, or electromagnetic interference not originating from the device.
2. Damage or problems caused by the use of an accessory, component or equipment not supplied by Close Comfort.
3. Damage or trouble caused by storm, fire, flood, vandalism, negligence, accident, force majeure, earthquake, war, vermin, foreign matter entering the device (e.g. dirt and moisture) or any other outside organism.
4. Freight charges (including insurance) incurred by the owner in returning the appliance to Close Comfort or an authorized repair center, dealer or agent.
5. In-home or on-site service and all associated costs.
6. Any consumable item (eg batteries) supplied with the device, unless the item is found to be defective at the time of purchase.
7. Damage or problems or unsatisfactory performance resulting from operation in an environment where the environmental comfort of people is not the primary function of the unit.
8. Damage caused by operation in a corrosive atmosphere or excessive humidity.
9. Damage from problems or unsatisfactory performance resulting from operations under conditions other than those specified in the Close Comfort technical or commercial documentation applicable to the device.
10. Damage, trouble or unsatisfactory performance resulting from misapplication of the unit.
11. Damage or problems or unsatisfactory performance resulting from leaking or depleted batteries.
12. Damage or problems caused by repair work carried out by someone who has not been authorized by Close Comfort to carry out repairs.

Owner responsibilities
a. Use and care of the device in accordance with the instructions for use provided with the device.
b. Regular cleaning of air filters (every two weeks) and replacement if damaged.
c. Replacement of exhausted batteries, in the remote control.
d. Cleaning of the heat exchangers by a qualified air conditioning technician in the event of excessive accumulation of dust on the fins and the tubes.
Warranty claim steps

1. Stop using the device and unplug it from any power source.
2. Contact the retailer where the product(s) were purchased.
3. If the product(s) were purchased directly from Close Comfort, report the defect and provide a detailed description with photos, sound recording or video if possible. Email these details to contact@coolzy.com, or use the contact form at https://www.coolzy.com/.
4. Once acknowledgement is received, follow Close Comfort’s instructions on preparing to return and sending unit for warranty evaluation.
5. Provide proof of original purchase, such as a retailer’s sales receipt, or proof of payment of an original tax invoice.

DISPOSAL
**** This marking indicates that this product should not be disposed with other household wastes throughout the EU. To prevent possible hazards to the environment or human health from uncontrolled waste disposal, please recycle it to prove the sustainable reuse of material resources. Please ask ‘return and collection’ systems or contact the retailer where the product was purchased to return your used device, they can recycle products safely.

SAFETY PRECAUTIONS

CAUTION!

1. Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
2. This appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater.)
3. Do not pierce or burn this appliance.
4. Be aware that refrigerants may not contain an odour.
5. This appliance shall be installed, operated and stored in a room with a floor area larger than 4 m².

Refrigerant gas
The refrigerant gas in this appliance is propane, also designated as R290 refrigerant. Propane is a natural gas with around 200 times less greenhouse impact than R32, the refrigerant commonly used in split air conditioners.
Propane is highly flammable. The quantity used in this air conditioner is about 100 grams, about the same as the flammable propellant gas used in spray cans. You may not be able to smell leaking propane gas.
Before operating this appliance
This appliance must stand upright at all times. If you are unsure whether the appliance has been stored or transported upright, stand the appliance upright for at least 12 hours before turning it on to allow liquid refrigerant inside the appliance tubing to drain to the bottom.
Make sure that the electric cable to the appliance is undamaged and in good condition.
Operating this appliance
This appliance designed for localised cooling. It can also provide dehumidification above a temperature of 20 ˚C by removing the rubber bung temporarily. Do not use this appliance for purposes other than its intended uses.
Operate this appliance in a ventilated space. We recommend keeping at least one window or door at least partly open at all times.
Make sure that air can pass easily to the inlets and away from the outlets of this appliance. Keep the appliance sufficiently far from curtains or furniture to enable free air movement.
Operate the appliance on a horizontal surface to avoid water leakage. If you use this appliance on a table or platform above the floor, make sure it cannot roll off the platform by accident.
Do not use this appliance in a corrosive atmosphere.
Avoid using this appliance in a wet area such as a washroom. Avoid using this appliance in an ambient temperature above 40 ˚C.
Wait at least 2 minutes after switching this appliance off before turning it on again to avoid damage to the compressor. After switching on the unit, the compressor will start after about 1.5 minutes as a further precaution to protect the compressor.
The peak current needed by this appliance can be as high as 7 amps at the instant of starting the compressor. Using an extension cord or unreliable electrical connectors can be dangerous.
This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user maintenance shall not be 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.
Children should be supervised to ensure that they do not play with the appliance.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. The appliance shall be installed in accordance with national wiring regulations.
Do not operate your air conditioner in a wet room such as a bathroom or laundry room.
Storing this appliance
Make sure that you store this appliance in a ventilated room at least 4 m² in size without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater with a heating element directly in contact with air).
Make sure the appliance is stored safely to protect it from damage that could cause refrigerant leakage. Local regulations may restrict the maximum number of appliances that can be stored in one location.
Maintaining this appliance
Keep the appliance clean using a moist cloth with the least possible cleaning agent if needed. Make sure you inspect the filters regularly and remove any accumulation of dust by gently rubbing and rinsing the filters in clean water. Do not use any sharp tools to remove dust or dirt from this appliance.
Servicing this appliance
An authorised and appropriately trained refrigeration or air conditioning technician is required for repairs to the electric cable or servicing for any component that requires removal of the outside casing. Close Comfort will provide advice needed to enable technicians to service Close Comfort products.
All servicing must be performed in a well ventilated space.
Disposing this appliance
Do not pierce this appliance with a sharp object or burn this appliance. Take it to an appropriate disposal or recycling centre. Close Comfort can provide information on appropriate disposal sites if you need help.
Remove the batteries from the remote control before disposal and place them in an appropriate battery recycling bin.
Make sure you comply with national regulations for refrigerant disposal.
Electrical supply
The air-conditioner can be connected only to an alternative current supply with 50 Hertz frequency, within the voltage limits for this appliance, and with system impedance no more than 0.219Ω. If in doubt, please consult an appropriately trained electrician or your supply authority for system impedance information.
Transport
This appliance must be transported upright, preferably protected by the original packaging. Please comply with local transport regulations on handling appliances with a small quantity of flammable refrigerant.

SERVICE INSTRUCTIONS FOR TECHNICIANS

This equipment is designed to be hermetically sealed at the factory and normally there should be no need for servicing or maintenance of the refrigeration circuit during the life of the appliance. In exceptional circumstances, however, servicing may be necessary or desirable.
These instructions must be provided to any technician performing service on this equipment. The technician must be appropriate qualified for the servicing of electrically powered air conditioning or refrigeration equipment.
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.
All technicians and others working in the local area shall be instructed on the nature of the work being carried out. Avoid working in confined spaces. Section off the area around the workspace. Ensure that the conditions within this area have been made safe by controlling flammable material. Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapour being present while the work is being performed.
This equipment is charged with 109 grams of R290 (propane) refrigerant which is less than the smallest amount at which special safety precautions are prescribed by international standards. However, in order to afford the highest standard of safety, we provide the following servicing instructions to be followed by appropriately qualified technicians.
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 must be available. 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 must 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.
Check the refrigeration equipment
Where electrical components are being changed, they shall be fit for purpose with 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 on the equipment must be visible and legible. Markings and signs that are illegible shall be replaced.
Refrigeration pipe or components must be 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 on electrical devices
Repair and maintenance for 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 there 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 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 of 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 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 lower flammability limit of the refrigerant (2.1% for R290 propane) and shall be calibrated for 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.
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 miniseries 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.
Become familiar with the equipment and its operation.
Isolate system electrically.
Before attempting the procedure ensure that:

• Mechanical handling equipment is available, if required, for handling refrigerant cylinders;
• All personal protective equipment is available and being used correctly;
• The recovery process is supervised at all times by a competent person;
• Recovery equipment and cylinders conform to the appropriate standards.

Pump down refrigerant system, if possible.
If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system.
Make sure that cylinder is situated on the scales before recovery takes place.
Start the recovery machine and operate in accordance with manufacturer’s instructions.
Do not overfill cylinders. (No more than 80 % volume liquid charge).
Do not exceed the maximum working pressure of the cylinder, even temporarily.
When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.
Labelling
Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant.
Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely.
When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). 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 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.

COOLZY-PRO Model PC9RL User Guide
EN2022
Rev1.1

Documents / Resources

| COOLZY-GO PC9RL Personal Portable Air Conditioner [pdf] User Guide
PC9RL Personal Portable Air Conditioner, PC9RL, Personal Portable Air Conditioner, Portable Air Conditioner, Air Conditioner, Conditioner
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References

• Home | Portable Air Conditioner | Coolzy | US
• Home | Portable Air Conditioner | Coolzy | US
• Home | Portable Air Conditioner | Coolzy | US

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