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Refrigerants

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All refrigerants are liquefied by the removal of heat energy. However, the cryogenic refrigerants such as helium, hydrogen, nitrogen, and others, are referred to as permanent gasses.  There is a temperature above which a gas cannot be liquefied regardless of the amount of pressure that is applied. That temperature is called the critical temperature. For ordinary refrigerants the critical temperature are above 93.33  ℃, with the exception of carbon dioxide. By contrast, the critical temperatures  of the common cryogenic refrigerants are: nitrogen -147 ℃; hydrogen -236.8 ℃; and helium -268℃, within less than -12.2 C degrees of absolute zero. This means that each gas must be cooled below its critical temperature before it can be liquefied. The critical pressure is the pressure needed to liquefy the gas at the critical temperature. The refrigeration equipment necessary to keep these refrigerants at cryogenic temperatures is more complex than that needed for common refrigeran

Air conditioning Major Service

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Zorro Services - Air conditioning

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Sir Air - Air conditioning

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Checking Gas on Air conditioning Systems

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Refrigerant pressure can only be accurately checked whilst the Air conditioning unit is running. Either you can distinguish with a amp meter or by the use of refrigerant gauges, this type of act can or must be performed only by an authorized personnel. There is a number of reason to why a Air conditioning unit is not cooling or heating!.. If there is a lack of  refrigerant in any system it means that there is a leak somewhere!...    Ensure that the correct gauges are used on a particular system be it R22 or R410a. A technician's safety comes first! Checking the pressure on a R22 unit is straight forward and easier to get an accurate reading. On an inverter unit, it is more difficult, but possible to get a good idea of  the pressure in the system. Remember that the pressure in the system is affected by the ambient temperature. On a cold day a unit's pressure will look lower than if you checked on a hot day. +Zorro Services - Air conditioning Your solution on s

SIZING A ROOM FOR A AIR CONDITIONER

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Please note that this section is a guideline, and factors not mentioned here can have a dramatic effect on heat load. If you are unsure about what size air conditioner an area will require, please contact one of the sales representatives at  +Zorro Services - Air conditioning  to assist you. The general rule for the High-veld region is 550 Btu per square meter of room size. Please remember to include any passageways or open areas such as bathrooms leading off the space you require conditioned. Also high ceiling-ed areas will require extra capacity. Remember that glass allows a lot of heat into a room and also allows heat to escape when you are in heating mode. Big windows will mean you need to up-size! Electric equipment and people also add significant heat load to a room. If unsure, contact a sales representative. Remember an R22 unit requires at least 1.5 m of piping between the indoor and outdoor to reduce noise and pressure, and R410a unit requires at least 2.5 m of piping betw

See my story on Trepup

See my story on Trepup

Air conditioning and Refrigeration Repair

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What happens if and when an Air conditioning or Refrigeration unit starts giving problems, not performing accordingly or not even functioning at all? Well the best way of finding out would be with the correct and appropriate set of tool, set of gauges, very importantly a multi-meter, hand-tools, etc. In the particular picture below of the Refrigeration condenser unit, We would like to direct your focus to the colour coding of the condenser this often indicates Refrigerant type. This goes without saying that this unit uses R404a.    When you arrive on site for the first time, there are a number of checks you need to carry out before you begin to try to diagnose a problem. These may seem obvious, but it is easy to overlook something  simple and waste a lot of time looking for a more complex fault than what actually exists. A few minutes spent checking the simple things can save hours and plenty of money on something misdiagnosed. Is the power supply to the unit on and corr

Evaporative-Cooling Air Conditioning Systems

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Evaporative-cooling air conditioning systems use the cooling effect of the evaporation of liquid water to cool an airstream directly or indirectly. It could be a factory-assembled packaged unit or a field-built system. When an evaporative cooler provides only a portion of the cooling effect, then it becomes a component of a central hydronic or a packaged unit system. An evaporative-cooling system consists of an intake chamber, filter(s), supply fan, direct-contact or indirect-contact heat exchanger, exhaust fan, water sprays, recirculating water pump, and water sump. Evaporative-cooling systems are characterized by low energy use compared with refrigeration cooling. They produce cool and humid air. +Zorro Services - Air conditioning http://zorroservices.co.za/ 011 056 3638                                        

Comfort Air conditioning Systems

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Comfort air conditioning systems provide occupants with a comfortable and healthy indoor environment in which to carry out their activities. The various sectors of the economy using comfort air conditioning systems are as follows: 1. The commercial sector includes office buildings, supermarkets, department stores, shopping centers, restaurants, and others. Many high-rise office buildings,use complicated air conditioning systems to satisfy multiple-tenant requirements. In light commercial buildings, the air conditioning system serves the conditioned space of only a single-zone or comparatively smaller area. For shopping malls and restaurants, air conditioning is necessary to attract customers. 2. The institutional sector includes such applications as schools, colleges, universities, libraries, museums, indoor stadiums, cinemas, theaters, concert halls, and recreation centers. For example, The Ticketpro Dome (previously known as the Coca-Cola dome and MTN sun-dome) is an events venue

Air conditioning Spares

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  +Zorro Services - Air conditioning  has seen the need to identify all components existing in an Air conditioning unit. We must be aware of these components as they work hand in hand to produce comfort in a provided space. We will discuss the functions of these components at a later stage,  +Zorro Services - Air conditioning  is known and trusted for the work it has produced in the industry. Contact zorroservices.co.za/  for any queries or quotes.                                                                   OUTDOOR UNIT OUTDOOR FAN BLADE AND MOTOR FOUR WAY VALVE  COMPRESSOR CONNECTOR BLOCK WITH A CAPACITOR CONDENSER COIL INDOOR UNIT FILTERS EVAPORATOR COIL DRAIN PAN EVAPORATOR FAN AND MOTOR PC BOARD AND CONNECTOR BLOCK INDOOR PIPE SENSOR AND RETURN AIR SENSOR +Zorro Services - Air conditioning   zorroservices.co.za/ 011 056 3638

Residential Air conditioning

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+Zorro Services   - Air conditioning we supply and do installations for residential and for commercial applications. We deal with all sizes from 9 000 Btu of any brand, Samsung, Alliance Air, Jet Air, Defy, Carrier, York, Dunham-Bush etc. We work on all types of units, Consoles, Window walls, Mid - Walls, Cassette units, Under Ceilings, Ducted units, Air handling units, etc. We adhere to the theory of Air conditioning, and we don't even consider what is called "shortcuts" in the industry that's what makes our work stand out. As +Zorro Services   one of our main objectives in the Air conditioning industry is to always reach an equilibrium between theory and practical experiences, this has proven to us that the two goes hand in hand with almost 0 % comebacks on our work. zorroservices/  walks the path of perfection in the industry with qualified and highly skilled workmanship, that's completely based on the basic principle of Air conditioning and Refrigeration.