These chillers play a crucial role in controlling weather inside residential areas, workplaces or in industries and manufacturing firms especially in the tropical region like the UAE. In spite of the fact the chillers are long-service equipment devices and have minimum issues for a long time, they experience few troubles that further determine their functioning. Fortunately, there are a number of the frequent chiller problems that can be sort out without any assistance from a professional technician. This is the third of a series of guides from UAE Technician where several DIY tips are provided to help you when beginning chiller troubleshooting to ensure that your cooling system is running well.

Check the Power Supply:

The most obvious and elementary step in troubleshooting is always the power supply to your chiller. If the machine has not powered on it could be due to power failure, electrical connection problem etc.

DIY Tip:

Feel and observe more the power cord with a mind set on determining which parts of it has endured physical or chemical harm. If there is any indicative of wear and tear such as strands of the wires or a damaged plug then replace the cord.
You should utilise the multimeter in order to confirm whether the required voltage is reaching the unit or not. If there is no voltage of a fluctuating voltage then it can be attribute to the electrical department.

Inspect the Water Flow:

Water flow is among the most common problems that may be a cause of poor performance of a chiller repair services Dubai. The chiller has a problem of an insufficient water flow rate through the evaporator to sustain the cooling cycle.

DIY Tip:

• Examine the water pump and make sure the machine is healthy by performing well. If the pump is off then check connections of power source to the pump and then try power cycling the pump.
• Check the water pipes if they are bend or choke or has any portion that has been create into compartments containing air hence delaying the flow of water.
• Check on the water filter and clean to minimize clogs that affect water flow letting your chiller be less effective.

If you are in doubt about the water flow, look behind at the flow rate meter, if provided on the chiller control board. Reduced flow rate results to poor cooling and sometimes damages the evaporator.

Check for Refrigerant Leaks

Refrigerant plays an important part in chiller’s cooling cycle. In case of refrigerant leakage, it becomes extremely difficult for a chiller to reach the required temperature of the system, making the system work under optimal conditions and experience a failure at times.

DIY Tip:

• The actual examination of the chiller at regular intervals must also check for visible signs of leaks in certain parts like the evaporator and condenser , especially, oil staining of the external casing and frost formation on the external shell.
• But pay attention or listen to any strange hissing or bubbling sounds coming from the refrigerant lines. These sounds may notify about the leakage.
• To identify small leaks you should use a soap-water solution. Wipe this solution on the refrigerant lines and look for bubbles that means the gas is coming out of the lines.

Major leaks on the refrigerants usually call for professional help in fixing the leakage and recharging the system, thus if you see signs of such, call an expert.

Clean the Condenser Coils:

Conveyor coils are one of the main components of any chiller system and dirty coils can reduce the efficiency of the chiller to a very large extent. Dust and debris builds up on the coils exposing them to over heat or under perform as they are suppose to carry heat load.

DIY Tip:

• Switch off the chiller and wait for some time so that the chiller gets cold.
• The last forming process is to clean the inside of the coils with a soft brush or with a vacuum cleaner with brush.
• For a better clean, you can use a coil cleaner spray which is best used for heating and cooling systems. Use it on the coils, let it sit for a few minutes and then wash off with water. Some attention should be paid to avoid causing harm to the coils during washing or cleaning.

Note Down Some Temperature and Pressure Values:

Temperature and pressure are highly important parameters to be recorded so as detect any problem in chillers. A Hydrological system always yields abnormal readings and different readings may be used to define particular sub-problems of the main system.

DIY Tip:

• Take a thermistator to check the water temperature before it enters the chiller and after it leaves the chiller. If it is very large, compared to the normal operating range, then something is wrong with the compressor, or the water flow.
• Look at the pressure gauges on the chiller. These symptoms involve high pressure readings and can stem from dirty filters or inadequate airflow, too much refrigerant in the system, or a clogged air filter or compressor. Any low pressures may indicate that there is a refrigerant leak or low water flow.

Check the manufacturers recommendations regarding pressure and temperature that the chiller is suitable for. The abnormally frisky readings should be embrace in order to countercheck the degree and identify any other probable implications from arising.

Inspect the Control Settings:

More often than not the problem is not necessarily with areas of the system interiors of the chiller but the control setting that is skew. Many of the model types contain temperature and operating settings that are programmable on most chillers.

DIY Tip:

• See that the chiller settings are properly input so that the right type of cooling is achieve.
• Check on the status indicator lights on the control panel section of the vehicle as these can help to identify certain system alarms and which can lead to issues regarding water flow, high pressure and or refrigerant issues.
• If possible, turn the chiller’s control panel to zero because this action will clear minor system issues.

Monitoring the dig temperature, the ambient temperature and the rate of ventilation.

Studies have shown and for that reason been establish that the conditions that surround a chiller have a bearing on the efficiency of the chiller system. Inadequate fresh air tends to cause about 5% over-heat and estrus ion while the overall efficiency of various systems is reduce.

DIY Tip:

• Ensure that the chiller is fix in places that will ensure provision of fresh air to all over the chiller unit.
• Interference with the airborne air that circulates in the vicinity of the chiller should not be allow in any form.
• Preferably, the chiller room should be located under shade because the direct sun will surely raise the chiller temperature.

Conclusion:

You should perhaps attempt to attempt this complete guide to basic chiller diagnostics so you do not have to employ a specialist and go for expensive repair expenditures in order that you can find effective chilling. But for complicated cases such as a large leakage of the refrigerant, or issues related to the compressor, then it is advisable that you call a professional technician. Specifically for peculiar chiller repair in Dubai, UAE Technician provides professional service for your conditioner needs.