Category Archives: Air Conditioning

How to do right HVAC Design for Hospitals ?

HVAC design is not only performing heating and cooling load calculations, but it also includes selecting the right HVAC system type and equipment, and precise HVAC Engineering. HVAC designers also need to know the premises, the occupancy type and ASHRAE codes that govern the occupancy. Good HVAC engineering practices are required for proper design, ventilation rates, and temperature control aspects.

HVAC design goals

The goal of every HVAC designer is to efficiently provide safe, comfortable environments. However, for hospitals, the process needs to be more refined and must follow codes in effect, energy efficiency, occupant comfort, ventilation, and air quality. HVAC designs, parameters, guidelines, and governing codes have continued to evolve and develop with additional standards over the past several years for hospitals.

HVAC For Biotech Startups
HVAC For Biotech Startups

How to do HVAC Design for hospitals?

Additionally, hospitals require a higher level of life safety consideration which makes conditions more stringent for HVAC Design. It starts with planning and selecting the HVAC system and analyzing the architectural floor plan that has the appropriate space name and divisions as denoted by legends.

Also, the medical facilities administration team must work in conjunction with HVAC designers. Each of the zones in the hospital facility like OT, CT, X-Ray, OPD has different heating and cooling loads and air-change requirements. Each occupancy or room has a different type of specific minimum air change per hour (ACH) requirements for both total and outside air as per ASHRAE guidelines for hospital design and regulations. The ventilation rates provide comfort, odor control in areas of patient care and treatment. An HVAC Designer must think for fully ducted systems for future flexibility in expanding or changing space occupancy types.

HVAC Design & Varying Occupancy

The importance of the occupancy determination then identifies which additional codes must be used for the HVAC design criteria. Sometimes a physician office and clinic have equipment and staff that perform procedures similar to those in hospitals and outpatient occupancies. These could include endoscopic procedures, CT scans or cancer treatment functions. As long as the number of simultaneously treated patients is fewer than health care occupancy definitions, no additional code-related requirements are needed in the design. However, some consideration might be given to space temperature, airflow direction, pressure relationships, and filtration to enhance the comfort and care of the patient and health care providers. Prior to HVAC design, it is important to understand the space use, the procedures to be performed and the number of patients who will receive treatment at any given time. This information helps to determine the HVAC design parameters for the project.

MG Cooling Solutions is a leading HVAC Company in India providing professional HVAC Services to its clients.

What is Precision Air Conditioning and how it is better from Comfort Air Conditioning?

What is Precision Air Conditioning and how it is better from Comfort Air Conditioning?

Precision Air Conditioning required to maintain ambient temperature & RH
  • Precision air conditioning is generally required at server rooms and data centres to provide right temperature to all IT equipments.
  • Apart from providing right temperature, precision air conditioning helps in maintaining right humidity levels. Electronic devices specifically IT equipment requires right humidity for working properly. Hence, precision air conditioners are required to maintain desired humidity which can not be achieved by comfort air conditioners.
  • Precision air conditioners are generally designed to run 24 by 7 unlike comfort air conditioners.
  • Precision air conditioners are designed to maintain higher level of sensible heat i.e. the heat emanating from machines or IT equipments like server room and data centres whereas comfort air conditioning is designed to maintain latent heat ( heat emanating from people with humidity).
  • Precision air conditioners have better air distribution as their CFM is quite high i.e. they can move more air volumes at higher rate than comfort air conditioners which also makes them less prone to bacteria’s as well.

Hence, a precision air conditioner stands above comfort air conditioners due to their high technical criticality.

Precision air conditioners are required mostly in IT industry where heat emanating from server rooms and data centres is quite high and this needs to be offset with air conditioning which can offer a right mix of temperature & RH.

Also, in other industries where any kind of machinery or electrical equipment need particular temperature & RH to function properly.

With increasing demand for consumption and production, it has become imperative to use precision air conditioners for the process it has been designated for.

But there are some precautions we need to keep in mind before choosing air conditioners. First and foremost, we must consult an HVAC Consultant who can guide us with the right load required in terms of infrastructure of machineries it has been set up for.

HVAC stands for Heating, Ventilation & Air Conditioning which is a broader term used in context of Industrial Air Conditioning and precision air conditioning is also a part of the same.

With growing Industrialization, precision air conditioning is required to maintain ambient temperature & RH. A right HVAC Company can guide you with right kind of precision ac best fitted for your requirement.

MG Cooling solutions in one such HVAC company with huge and extensive experience in HVAC, Their details can be checked through


How HVAC Drawings can deliver good HVAC Projects with optimum efficiency.

How HVAC Drawings can deliver good HVAC Projects with optimum efficiency.

MG Cooling Solutions

HVAC stands for Heating, Ventilation & Air Conditioning. An HVAC Consultant takes charge of complete Consultancy, Design & Calculations. An HVAC Consultant also supervises HVAC Draughtsman. An HVAC Draughtsman takes care of all the drawings which are required in any kind of HVAC Project.
HVAC drawings are very useful for successfully executing an HVAC Project. The work starts with Architectural Design which is of a starting point for any HVAC Draughtsman to work upon. Generally, all the drawings in autocad format as the dimensions of all the construction material like walls, specifications of material like glass, metals etc. can be easily denoted in autocad format.


MG Cooling Solutions
MG Cooling Solutions
An HVAC Complete solution provider Company

Once HVAC Draughtsman has basic infrastructure layout with proper dimensions and specifications, his or her job starts with first locating all the heavy machinery instruments provided he utilized space in a much efficient manner and there is no hindrances as per actual site conditions.
For example, we can’t place a heavy air conditioner where there is no space or less space. Also, an HVAC Draughtsman has to make way for duct distribution and piping distribution.
A duct is a big pipe which carries supply or return air to a location from the air conditioners, exhausts, AHU etc. or vice versa. Piping work is the distribution of inlet or outlet water. Hence, the role of HVAC Draughtsman is to make sure there is no obstruction in the passage of duct distribution system and piping work.
The role becomes critical because other MEP work like fire fighting lines also need to be accommodated in the same drawings.
Hence, an HVAC Draughtsman must take care of below things:
 He or she must work in close association with people who are making other arrangements like fire fighting pipeline because the space is limited and this will create problem for installation team. Hence, he or she must pave way for other systems to run in parallel.
 He or she must take care of physical site infrastructure. He or she should not place any equipment and make provision for any duct or pipe where there is no space. Otherwise, the entire system will collapse and execution team will face lots of problem.
 An HVAC Drawing is the blueprint of HVAC system for Installation team to execute. Hence, there should not be any error in drawings to make sure that entire system runs well.
MG Cooling Solutions is an HVAC Company which takes care of every minute HVAC details so that there is no error in Drawings & Design. They can be reached at

Benefit of VRV/VRF Technologies

VRV Or VRF Technology- Overview

Variable Refrigerant Flow or Variable Refrigerant Volume is efficient technology in Air Conditioning Industry which can sense internal occupancy & external conditions
to provide desired cooling & heating effect within commercial building.
As a result of this, different temperatures can be maintained in a single premises simultaneously. The cooling and heating requirement of these spaces changes with respect
to external factors like position of sun, heat generating equipment in the area, lightning and outdoor temperatures.
Also, internally human occupancy changes and as a result of this VRV/VRF machines adjust temperatures for desired heating and cooling as required.

In its simplest form, a single outdoor unit of VRV/VRF is connected to many units of indoors through a network of copper pipes which consists of refrigerant.
VRV/VRF systems achieve efficiency by varying the flow of refrigerant to the indoor units based on exact requirement of different rooms which leads to desired comfort
cooling and precise temperature control.

VRV/VRF air conditioning systems are compact,flexible and modular in design. Outdoor units can be joined together for heat recovery process and indoor units also come
in multiple types and sizes making them suitable for most of the applications. These systems can also be engineered to avoid or minimize duct distribution network making them
compact and easy to install and they can also be controlled through sophisticated control system which can be also integrated into the building BMS control system.

Benefits of Centralized Air Conditioning System


• Through Centralized Air Conditioning, cool air can be circulated effectively and efficiently also improving indoor air quality.
• Centralized air condition system cools air through ducts and vents which is located in each room rather than cooling a single room.
• Centralized air condition system has efficient filters which removes airborne particles like lint and allergens, dust, pollen etc. This system can also trap even most of the microscopic pollutants, hence increasing air quality.
• Centralized air conditioners make less noise as fan, compressor and condenser are located outside and indoor noise is highly detectable.
• Also, it adds to aesthetic and interior designing as the machines are located outside the premises.
• Centralized Air Conditioners can be monitored and controlled through a single console which can be also programmed as per desired conditions to run at different time and temperature.
• They can also be used for reverse effect, i.e. heating the premises. Hence, heating & cooling can be achieved through a single machine.

How Air Conditioners Work

Air conditioners move heat from premise to be cooled to outside. Air conditioners blow cool air by pulling the heat out of that air. The air gets cooled by blowing it over a set of cold pipes known as evaporator coil. This works like an evaporation process. The evaporator coil is filled with a liquid known as refrigerant, which changes its state i.e. from liquid to a gas as it absorbs heat from the humidified air. The refrigerant is pumped outside the house to another coil where it throws its all heat and changes back to liquid state. This coil located outside is known as condenser because the refrigerant is condensing i.e. changing from gaseous state to fluid, similar to moisture on a cold window. A pump, which we called compressor, is used to move the refrigerant between the two coils and to change the pressure of the refrigerant so that all the refrigerant evaporates or condenses in the appropriate coils.
There is a motor in the compressor which runs and this is from where all energy comes from. The entire system will generally give almost three times the cooling energy that the compressor uses but this happens because the changing of refrigerant from one state to another

refrigerant-cycle lets the system move much more energy than the compressor uses.