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34 selected articles

Curtis Mathes Corporation - Wikipedia

Curtis Mathes Corporation started in 1919 as Connor and Mathes, a manufacturer and retailer of automobile and tractor parts. By the late 1920s, the company moved into the air conditioning industry. It also manufactured wooden cabinets and eventually furniture, acquiring Hub Furniture in 1942. The leading product through the 30s and 40s were electrical fans, many styles built into custom cabinets...

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Date: 2017-04-06 22:20:54

Related topics : american air conditioning manufacturers / heating and air conditioning repair companies / used air conditioning units dallas

HVAC - Wikipedia

A simple stylized diagram of the refrigeration cycle: 1)  condensing coil , 2)  expansion valve , 3)  evaporator coil , 4)  compressor

The refrigeration cycle uses four essential elements to cool.

The system refrigerant starts its cycle in a gaseous state. The compressor pumps the refrigerant gas up to a high pressure and temperature.

From there it enters a heat exchanger (sometimes called a...

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Date: 2017-04-12 16:52:08

Related topics : split system air conditioning installation cost / split system air conditioning installation / air conditioning system design / air conditioning system expansion valve / air conditioning system diagram

HVAC - Wikipedia

A simple stylized diagram of the refrigeration cycle: 1)  condensing coil , 2)  expansion valve , 3)  evaporator coil , 4)  compressor

The refrigeration cycle uses four essential elements to cool.

The system refrigerant starts its cycle in a gaseous state. The compressor pumps the refrigerant gas up to a high pressure and temperature.

From there it enters a heat exchanger (sometimes called a...

Read more

Date: 2017-04-12 16:52:08

Related topics : split system air conditioning installation cost / split system air conditioning installation / air conditioning system design / air conditioning system expansion valve / air conditioning system diagram

HVAC - Wikipedia

A simple stylized diagram of the refrigeration cycle: 1)  condensing coil , 2)  expansion valve , 3)  evaporator coil , 4)  compressor

The refrigeration cycle uses four essential elements to cool.

The system refrigerant starts its cycle in a gaseous state. The compressor pumps the refrigerant gas up to a high pressure and temperature.

From there it enters a heat exchanger (sometimes called a...

Read more

Date: 2017-04-12 16:52:08

Related topics : split system air conditioning installation cost / split system air conditioning installation / air conditioning system design / air conditioning system expansion valve / air conditioning system diagram

Automobile repair shop - Wikipedia

Types[ edit ]

Automotive garages and repair shops can be divided into following categories:

The auto parts stores or motor-factors that also maintain service operations. This is not common in the United Kingdom but more common in the US.

Automobile repair workshops that are independently owned and operated businesses. These may also include regional or national chains and franchises including OEM...

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Date: 2017-03-29 22:37:22

Related topics : air conditioning auto repair shops / car air conditioner repair shop near me / auto air conditioner repair parts / car air conditioning repair shops / automotive air conditioner repair near me

Rheem - Wikipedia

Rheem Manufacturing Company was subsequently organized on January 22, 1930, buying out Pacific Galvanizing. Rheem also acquired the Republic Steel package company, which also had a plant in Richmond. [8] Republic Steel made boilers and tanks, which allowed Rheem to enter the business of water heating. The company acquired the John Wood Manufacturing Company of California, which produced automatic...

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Date: 2017-04-10 09:26:54

Related topics : central air conditioner repair companies / heating and air conditioner repair / heating air conditioner repair / rheem air conditioner replacement parts / rheem air conditioner repair parts

Hydronics - Wikipedia

Single-pipe steam[ edit ]

Single-pipe steam radiator

In the oldest modern hydronic heating technology, a single-pipe steam system delivers steam to the radiators where the steam gives up its heat and is condensed back to water. The radiators and steam supply pipes are pitched so that gravity eventually takes this condensate back down through the steam supply piping to the boiler where it can once...

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Date: 2017-04-12 16:42:50

Related topics : air conditioning system expansion valve / bleed air boiler heating system / heating and air conditioning systems problems / heating and air conditioning systems repair / air conditioning system types

Solar air conditioning - Wikipedia

History[ edit ]

In the late 19th century, the most common fluid for absorption cooling was a solution of ammonia and water. Today, the combination of lithium bromide and water is also in common use. One end of the system of expansion/condensation pipes is heated, and the other end gets cold enough to make ice. Originally, natural gas was used as a heat source in the late 19th century. Today,...

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Date: 2017-04-09 10:03:12

Related topics : cost of running air conditioning per hour / air conditioning system prices / how much does refrigerated air conditioning cost to run / how much does air conditioning cost to run in a car / how much does air conditioning cost to run

Motor capacitor - Wikipedia

Start capacitors[ edit ]

A typical motor start capacitor, as can be seen by its black color and can shape

Start capacitors briefly increase motor starting torque and allow a motor to be cycled on and off rapidly. A start capacitor stays in the circuit long enough to rapidly bring the motor up to a predetermined speed, which is usually about 75% of the full speed, and is then taken out of the...

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Date: 2017-03-29 00:35:20

Related topics : air conditioner motor run capacitor / air conditioner start run capacitor / air conditioning run capacitor problems / air conditioning run capacitor failure / air conditioner run capacitor wiring

New South Wales 900/800 class railcar - Wikipedia

The 900/800 class railcars or DEB sets were a Diesel Multiple Unit built by the New South Wales Government Railways between November 1951 and November 1960.

Contents

Configuration[ edit ]

As introduced, the DEB sets were formed as a four-car with a power car at either end of two trailer cars. The set consisted a driving power car with luggage compartment and second class seating (HPF), a first...

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Date: 2017-04-11 00:05:35

Related topics : car air conditioning service canberra / car air conditioning service near me / air conditioning service car / first class air conditioning sydney / first class air conditioning

Automobile air conditioning - Wikipedia

In 1954, the Nash Ambassador was the first American automobile to have a front-end, fully integrated heating, ventilating, and air-conditioning system. [8] [9] The Nash-Kelvinator corporation used its experience in refrigeration to introduce the automobile industry's first compact and affordable, single-unit heating and air conditioning system optional for its Nash models. [10] This was the first...

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Date: 2017-04-13 10:46:50

Related topics : air conditioning system prices / air conditioning system types / air conditioning system components / air conditioning system / american air conditioning and heating

Furnace - Wikipedia

Natural draft[ edit ]

Diagram of natural draft gas furnace, early 20th century.

The first category would be natural draft, atmospheric burner furnaces. These furnaces consisted of cast-iron or riveted-steel heat exchangers built within an outer shell of brick, masonry, or steel. The heat exchangers were vented through brick or masonry chimneys. Air circulation depended on large, upwardly pitched...

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Date: 2017-04-12 16:42:50

Related topics : air conditioning system design / air conditioning system types / air conditioning system diagram / air conditioning system / american air conditioning and heating

Santa Barbara City College - Wikipedia

Santa Barbara City College

The exit of the food service area of Santa Barbara City College cafeteria

The Earth & Biological Sciences Building was completely rebuilt between 2000 and 2002 and is now one of the most technologically advanced science buildings in the state.

The School of Media Arts (SOMA) was established in 2001 to focus on applied communication, visual literacy and digital media....

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Date: 2017-04-04 09:03:47

Related topics : heating and air conditioning systems repair / automotive air conditioning repair manuals / heating and air conditioning repair training / automotive air conditioning repair training / air conditioning heating service repair

Automotive Service Excellence - Wikipedia

A7 - Heating & Air Conditioning Certification

A8 - Engine Performance Certification

A9 - Light Vehicle Diesel Engine

Master Automotive Technician ASE Certification: The Master Technician Certification is earned after all eight of the specific testing / certifications listed above are passed. To maintain the Master Level, each test must be re-certified every five years. Upon certification, the...

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Date: 2017-04-05 02:20:47

Related topics : air conditioning heating service repair / auto air conditioning service repair / heating and air conditioning systems problems / heating and air conditioning systems repair / auto air conditioning system repair

Carrier Corporation - Wikipedia

See also: Carrier Air Conditioner move to Mexico

Willis Carrier is credited with inventing modern air conditioning in 1902. In 1915, Carrier and six other engineers pooled $32,600 to form the Carrier Engineering Corporation. [5] They purchased their first factory in 1920, in Newark, New Jersey .

The corporation bearing his name marketed its air conditioner to the residential market in the 1950s,...

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Date: 2017-04-05 00:02:16

Related topics : air conditioning service carrier / carrier air conditioning indiana / carrier air conditioning indianapolis / carrier air conditioner indiana / carrier air conditioner indianapolis

Air door - Wikipedia

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) defines an air door as follows: "In its simplest application, an air curtain is a continuous broad stream of air circulated across a doorway of a conditioned space. It reduces penetration of insects and unconditioned air into a conditioned space by forcing an air stream over the entire entrance. The air stream...

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Date: 2017-04-12 16:42:50

Related topics : american air conditioning and heating / air conditioning temperature differential outside / air conditioning system design / climate design air conditioning / air conditioning temperature range

Tankless water heating - Wikipedia

Tankless heater controls[ edit ]

Electric point-of-use (POU) tankless water heater, wall-mounted under a sink (Germany)

Tankless water heaters can be further divided into two categories according to their heating capability: "full on/full off" versus "modulated". Full on/full off units do not have a variable power output level; the unit is either fully on or completely off. This can cause an...

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Date: 2017-03-29 13:34:40

Related topics : hot water tank damage / hot water heater damage when water turned off / hot water heater damage / water heater damage no water / water heater element damage

Thermal expansion valve - Wikipedia

A thermal expansion valve is a key element to a heat pump ; the cycle that makes air conditioning, or air cooling, possible. A basic refrigeration cycle consists of four major elements, a compressor , a condenser , a metering device and an evaporator . As a refrigerant passes through a circuit containing these four elements, air conditioning occurs. The cycle starts when refrigerant enters the...

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Date: 2017-04-12 16:42:50

Related topics : air conditioning expansion valve function / air conditioning expansion valve operation / air conditioning expansion valve replacement / air conditioning expansion valve / air conditioning tx valve

Boiler - Wikipedia

Materials[ edit ]

The pressure vessel of a boiler is usually made of steel (or alloy steel ), or historically of wrought iron . Stainless steel , especially of the austenitic types, is not used in wetted parts of boilers due to corrosion and stress corrosion cracking. [3] However, ferritic stainless steel is often used in superheater sections that will not be exposed to boiling water , and...

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Date: 2017-04-10 19:55:13

Related topics : how to drain a central heating system combination boiler / hot water heater damage when water turned off / hot water heater leak damage / hot water heater damage claim / hot water heater damage

Solar energy - Wikipedia

Note:

Total global annual solar energy potential amounts to 1,575 EJ (minimum) to 49,837 EJ (maximum)

Data reflects assumptions of annual clear sky irradiance, annual average sky clearance, and available land area. All figures given in Exajoules.

Quantitative relation of global solar potential vs. the world's primary energy consumption :

Ratio of potential vs. current consumption (402 EJ) as of...

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Date: 2017-04-12 16:59:13

Related topics : air conditioning temperature range / evacuating home air conditioning system / air conditioning system types / how to evacuate residential air conditioning system / evacuating air conditioning system

Air cycle machine - Wikipedia

History[ edit ]

Air cycle machines were first developed in the 19th century for providing chilling on ships. The technique is a reverse Brayton cycle (the thermodynamic cycle of a gas turbine engine) and is also known as a Bell Coleman cycle or "Air-Standard Refrigeration Cycle".

The air cycle machine aboard a Sukhoi Superjet 100

The usual compression, cooling and expansion seen in any...

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Date: 2017-03-29 22:28:34

Related topics : air conditioning temperature differential outside / air conditioning temperature differential / air conditioning temperature / air conditioning system aircraft / air conditioning system

Variable air volume - Wikipedia

4 References

Simple VAV systems(VAV)[ edit ]

The simplest VAV system incorporates one supply duct that, when in cooling mode, distributes supply air at a constant temperature of approximately 55 °F (13 °C). [1] Because the supply air temperature is constant, the air flow rate must vary to meet the rising and falling heat gains or losses within the thermal zone served. [2]

Even a simple VAV...

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Date: 2017-04-12 16:42:50

Related topics : air conditioning temperature in office / air conditioning temperature / air conditioning system diagram / air conditioning system / air conditioning units

British Rail Class 456 - Wikipedia

Description[ edit ]

The Class 456s were delivered in Network South East livery

24 two-car units were built as direct replacements for the elderly Class 416 2EPB units which operated on the Central Division of the Southern Region of British Rail . [1] Units were delivered into traffic painted in Network SouthEast blue, red and white livery. Units were numbered in the range 456001-024. Each unit...

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Date: 2017-04-13 07:40:38

Related topics : car air conditioning service near me / air conditioning service car / first class air conditioning / air conditioning units / air conditioning system design

Northeast blackout of 2003 - Wikipedia

Connecticut[ edit ]

Parts of New London , Hartford , New Haven , Litchfield , and Fairfield counties, from Greenwich to Danbury and Bridgeport , were affected, although most of the state had power all evening, aside from a few momentary interruptions that caused computers to reboot. Metro-North trains stopped and remained on the tracks for hours, until they could be towed to the nearest station....

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Date: 2017-04-08 12:36:35

Related topics : heating and air conditioning unit problems / heating and air conditioning systems problems / air conditioner parts london ontario / air conditioning units / heat and air conditioning problems

British Rail Class 25 - Wikipedia

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British Rail Class 25

British Railways Class 25 D7612 runs round the train at Tunbridge Wells West at...

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Date: 2017-04-13 07:46:01

Related topics : first class heating & air conditioning / first class heating and air conditioning / first class heating and air / first class air conditioning / first class heating & cooling

Economy class - Wikipedia

Marine[ edit ]

Third Class cabin on board the RMS Titanic .

Travel classes originated from a distinction between "cabin class" and " steerage " on sailing vessels in the 18th century. Cabin class, for wealthier passengers included small cabins and a shared dining room while "steerage" provided open decks with bunks often near the tackle to operate the Steer rudder in converted cargo space on the...

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Date: 2017-04-12 21:57:45

Related topics : first class air conditioning / air conditioner service cost for car / air conditioner service for a car / air conditioner service near me / carrier air conditioner india

Palmdale, California - Wikipedia

Palmdale is a city in the center of northern Los Angeles County in the U.S. state of California . The San Gabriel Mountains separate Palmdale from the City of Los Angeles .

On August 24, 1962, Palmdale became the first community in the Antelope Valley to incorporate. 47 years later, in November 2009, voters approved making it a charter city . Its population was 152,750 at the 2010 census , up...

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Date: 2017-04-11 08:50:07

Related topics : air conditioning units / auto air conditioning service las vegas / air conditioning service las vegas / air conditioning las vegas school

Packaged terminal air conditioner - Wikipedia

A Packaged Terminal Air Conditioner (often abbreviated PTAC) is a type of self-contained heating and air conditioning system commonly found in hotels, motels, senior housing facilities, hospitals, condominiums, apartment buildings, add-on rooms & sunrooms. Many are designed to go through a wall, having vents and heat sinks both inside and outside. Different standard dimensions are found in the market including...

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Date: 2017-04-12 16:42:50

Related topics : air conditioning system types / air conditioning system design / air conditioning system

British Rail Class 321 - Wikipedia

Silverlink Train Services Class 321/4 No. 321425 at Watford Junction

The interior of the First Class cabin aboard a Silverlink Class 321/4 EMU

The interior of Standard Class accommodation aboard a Silverlink Class 321/4 EMU

The first Class 321 to receive the London Midland livery was 321411 and is seen at Watford Junction

Silverlink inherited 37 of the 48 Class 321/4 units. The remaining 11 units...

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Date: 2017-04-13 07:42:23

Related topics : first class air conditioning

Hot tub - Wikipedia

The plumbing of the hot tub consists of:

A pressure system delivering water to the jets

A suction system returning water to the pumps.

A filtration system : the plumbing has to incorporate a filter system to help clean the water. Some models use a separate small 24/7 filter pump while others use programmed settings of the main pumps.

Induced air: The jets may use a venturi effect to incorporate...

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Date: 2017-04-05 08:18:55

Related topics : hot water heater damage

Merkava - Wikipedia

Main article: Namer

Namer (Hebrew: leopard , which is also an abbreviation of "Nagmash (APC) Merkava"), is an infantry fighting vehicle based on the Merkava Mark IV chassis. In service since 2008, the vehicle was initially called Nemmera (Hebrew: leopardess), but later renamed to Namer.[ citation needed ]

Namer is equipped with a Samson Remote Controlled Weapon Station (RCWS) armed with either a...

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Date: 2017-04-12 10:08:00

Related topics : air conditioning system design / air conditioning system types

Fog - Wikipedia

Depending on the concentration of the droplets, visibility in fog can range from the appearance of haze, to almost zero visibility. Many lives are lost each year worldwide from accidents involving fog conditions on the highways, including multiple-vehicle collisions .

The aviation travel industry is affected by the severity of fog conditions. Even though modern auto-landing computers can put an...

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Date: 2017-04-06 10:56:39

Related topics : air conditioning sound effect

2014 NBA Finals - Wikipedia

Main article: 2013-14 Miami Heat season

Although LeBron James did not repeat as league MVP , he was still among the top players in the league for the two-time defending champions. Dwyane Wade was rested regularly during the regular season to preserve his knees, but returned to his old form during the playoffs. The third All-Star of the Big Three for Miami, Chris Bosh , played well to end the...

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Date: 2017-04-12 09:52:45

Related topics : heating san antonio

Miami International Airport - Wikipedia

Miami International Airport than any other airport in the United States, except John F. Kennedy International Airport in New York.

American Airlines , American Eagle , Delta Air Lines , Miami Air , Sky King Airlines , and United Airlines all operate regular flights between MIA and several airports in Cuba , one of a few airports with direct airlink between the two nations. However, these flights...

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Date: 2017-04-13 02:40:49

Related topics : american air conditioning inc