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Question 1

is defined as “the process of treating air so as to control simultaneously its temperature, humidity, cleanness and distribution to meet the requirements of the conditioned space”.

Answer 1

Air conditioning

Question 2

Room temperature is controlled to the predesigned dry bulb temperature by cooling or heating room air.

Answer 2

Temperature control

Question 3

Room air is controlled to the predesigned relative humidity by humidifying or dehumidifying room air.

Answer 3

Humidity control.

Question 4

Room air is cleaned by removing dust and dirt from the air.

Answer 4

Air filtering, cleaning, and purification

Question 5

Air, which is controlled in temperature and humidity and cleaned, is distributed throughout a room. As a result, room air can be maintained evenly in temperature and humidity conditions

Answer 5

Air movement and circulation.

Question 6

Important actions involved in the operation of an air conditioning system:

Answer 6

Temperature control
Humidity control.
Air filtering, cleaning, and purification
Air movement and circulation.

Question 7

In the Philippines, an acceptable humidity ratio, or relative humidity (RH),

Answer 7

is generally considered to be between 40% and 60%.

Question 8

Four elements of air conditioning:

Answer 8

Temperature,
Humidity,
Cleanness, and
Distribution of air

Question 9

The heat and coldness that human feels depend not only on air temperature(dry bulb temperature), but also on humidity and distribution of air. In addition, the general comfortable zone is within the range shown with oblique lines, although comfort differs with the distinction of sex, age and work.

Answer 9

What is comfortable air?

Question 10

ranging from 71% in March to 85% in September.

Question 11

Ideal Range:

Answer 11

between 40% and 60%.

Question 12

Maintaining this range can help prevent issues like:

Answer 12

Mold growth:
Damage to building materials:
Health problems:

Question 13

Comfort Zones:

Answer 13

21.5°C to 24.5°C

Question 14

Temperature Variations:

Answer 14

While the average annual temperature is around 26.6°C (79.9°F), temperatures can fluctuate depending on the season and location.May, the warmest month, can see average maximum temperatures around 32.8°C (91°F).January, the coolest month, has an average temperature around 25.5°C (78°F).

Question 15

Summer vs. Winter:

Answer 15

During the summer months (March to May), temperatures can be higher, with averages around 28 to 38°C (82 to 100°F), as mentioned in apost on MakeMyTrip.The cooler months (December to February) see temperatures averaging between 24 to 30°C (75 to 86°F).

Question 16

Kinds of classifications of air conditioners:

Answer 16

Classification by expansion methods
Classification by heat rejection methods
Classification by structure
Classification by the locations of the compressor
Classification by use
Classification by installation methods of fan coil

Question 17

Expansion methods are largely classified in two types

Answer 17

direct expansion and indirect expansion.

Question 18

The heat is directly exchanged between the air to be conditioned and the refrigerant, and the air conditioners adopt this method.

Answer 18

Direct expansion method

Question 19

The heat is exchanged indirectly between the air to be conditioned and the refrigerant by means of water or brine. The systems combining the chillers or centrifugal water chillers with fan coil units adopt this method.

Answer 19

Indirect expansion method

Question 20

Heat rejection methods are largely classified in two types:

Answer 20

Water cooled type by means of water, and
Air cooled type by means of air.

Question 21

uses water to cool the condenser coils and transfer heat away from the system.This method is often more efficient and can be quieter than air-cooled systems.Water-cooled systems are common in larger facilities, such as hospitals and corporate buildings.

Answer 21

water-cooled air conditioner

Question 22

bemefits of water cooled

Answer 22

Energy efficiency:
Quiet operation:
No freezing:

Question 23

Water cooling system requires

Answer 23

pipe system
pump station
(cooling tower or condensing units

Question 24

water-to-water heat exchanger (cooling tower)
vs water-to-air cooler units
(condensing units)

Question 25

Factors to consider before choosing a water-cooled system

Answer 25

Temperature Requirements Intended Location Source of Cooling Fluid Chiller Size Overall Costs Pump Performance Curves Noise Levels:

Question 26

Residential / domestic,

Answer 26

6,000 – 20,000 btu

Question 27

commercial / office

Answer 27

12,000 – 50,000

Question 28

Industrial

Answer 28

30,000 - up

Question 29

The operation of an air conditioner revolves around the flow of refrigerant from one set of coils, where it collects heat, to a second set of coils where it disperses heat. In monoblock air conditioners, the two sets of coils are combined in the same body shell. The units are designed to be located inside the building; however, they always have an air pipe to link to the outside so that the heated air can be dispersed outside.

Answer 29

MONOBLOCK AIR CONDITIONERS

Question 30

is a top choice for consumers due to its easy setup and no special mounting requirements. It features a flexible exhaust pipe, about 5 inches in diameter and 2 to 3 meters long, that can be routed through a window or wall. While convenient and affordable, these units can be noisier and have limited cooling capacity since the compressor is within the unit. Still, many compact models deliver effective cooling with capacities of 9,000 or 12,000 BTUs.

Answer 30

Portable or mobile air conditioners monoblock

Question 31

are wall-mounted units that resemble storage heaters. They often include a heat pump for cost-effective heating in colder months and have two air pipes that exit the rear of the unit through the wall, capped with small louvers.

Answer 31

Floor-mounted monoblock air conditioners

Question 32

known as high wall units, are the ideal solution for older buildings where external condenser installations are prohibited. These units are strategically installed high on the wall, with two air pipes running directly through the wall. Although they are slightly deeper than split wall-mounted units due to the internal condenser, they are designed to deliver exceptional performance.

Answer 32

Wall-mounted monoblock air conditioners,

Question 33

can be achieved using large mobile monoblock air conditioners. These robust units are designed for easy transport to ships, boats, and aircraft, providing temporary cooling. They can also supply cool air for industrial processes.

Answer 33

Spot cooling

Question 34

commonly known as "window rattlers," are the preferred choice for many in apartments, houses, offices, and cabins across Mediterranean countries and the Middle East. Basic models efficiently cool the air, while more advanced units come equipped with heat pumps and remote controls.

Answer 34

Window type air conditioners (WTAC)

Question 35

composed of two essential components: an outdoor unit and an indoor unit, rigorously connected by an electric cable and two copper pipes for efficient refrigerant flow. The outdoor unit, which houses the compressor, is intentionally designed to be robust and powerful, while the quieter indoor unit can be strategically installed throughout various indoor spaces.

Answer 35

SPLIT AIR CONDITIONING

Question 36

The units are expertly custom-fitted by engineers and come without interconnecting quick connection pipes, ensuring that the installation is precisely tailored to the building. This investment, while higher in cost, results in a clean and professional setup that significantly enhances the building's resale value.

Answer 36

Wall mounted air conditioner

Question 37

are essential in offices with suspended ceilings, designed to seamlessly fit within one or two ceiling tile spaces. The bulk of the unit remains hidden above the ceiling, leaving only the elegant lower face and air outlets visible.

Answer 37

Ceiling Cassette air conditioner

Question 38

These units are ideal for environments lacking suspended ceilings and where ceiling height allows for under-ceiling installations. While they are designed with aesthetics in mind, they may still appear bulky when mounted.

Answer 38

Ceiling suspended air conditione

Question 39

. The first type, column air conditioners, consists of large, high-capacity units (up to 45000 BTU) designed specifically for cooling expansive areas where multiple smaller units are impractical. These units are indispensable in settings such as lobbies, reception areas, and waiting rooms. Their powerful cooling output generates a strong flow of air, which requires occupants to maintain a safe distance from the unit for optimal comfort.

Answer 39

Floor-mounted split air conditioners

Question 40

Smaller, more like the dimensions of a storage heater than a tall upright freezer dimensions of a column air conditioner. Typical rated capacities are up to about 15,000 BTU, and they are ideal for providing high-efficiency climate control to new extensions and conservatories.

Answer 40

Cabinet-style air conditioners

Question 41

deliver impressive capacities of up to 16,000 BTU. These are designed with a plastic-sheathed "umbilical cord" that houses the electrical line and refrigerant pipes, equipped with a quick-connect fitting for easy disconnection.

Answer 41

Portable split air conditioners

Question 42

These air conditioning systems operate like split systems but feature multiple indoor units linked to a single external condenser. They demand a larger, more powerful condenser, which is a necessary investment

Answer 42

MULTI SPLIT AIR CONDITIONING