TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

The mixing damper controls flow from the left inlet branch as a percentage of the mixed-air flow, subject to a preset minimum. The minimum can be scheduled or modulated by a time-switch profile in the damper component dialog. A controller then modulates flow from the left branch vs. bottom branch as a percentage of the outlet flow rate or in an attempt to achieve a target mixed-air temperature. Typical applications include outside air economizers, demand-controlled ventilation, and bypass dampers for heat-recovery, indirect evaporative cooling, heat pipes, coils with high static pressure, or similar components within an air handler.  1, record 1, English, - mixing%20damper

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A pivoted metal plate, set just above the throat in a chimney, that controls the draft ... through a fireplace and up the chimney; may be used to close off the chimney when the fireplace is not in use.  2, record 2, English, - fireplace%20damper

Record number: 2, Textual support number: 1 CONT

If you have ever opened the fireplace damper before lighting a fireplace and felt a big flow of cold air come into the room, you have encountered a backdraft.  3, record 2, English, - fireplace%20damper

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Si vous avez déjà ouvert le registre du foyer avant d'y allumer un feu et senti un fort courant d'air froid qui entre dans la pièce, il s'agissait alors d'un refoulement.  2, record 2, French, - registre%20du%20foyer

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

... Air Handling Units.... Clean damper operators.  2, record 3, English, - damper%20actuator

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Alternatively, the supply air may not be HEPA [high efficiency particulate air] filtered but equipped with a fast-acting bioseal damper which is interlocked with the exhaust fan to ensure that potentially contaminated air is not released through the air intake during an HVAC [heating, ventilation and air-conditioning] failure.  1, record 4, English, - bioseal%20damper

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 OBS

outside air damper : term officially approved by the Lexicon Project Committee(New Brunswick).  2, record 5, English, - outside%20air%20damper

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

registre d'air extérieur : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).  2, record 5, French, - registre%20d%27air%20ext%C3%A9rieur

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

A damper fitted across the face area of an air cooling coil or other equipment in order to control quantity of air flowing through it.  2, record 6, English, - face%20damper

Record number: 6, Textual support number: 1 OBS

face damper: term officially approved by the Lexicon Project Committee (New Brunswick).  3, record 6, English, - face%20damper

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 OBS

registre de surface frontale : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).  2, record 6, French, - registre%20de%20surface%20frontale

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

[A situation that occurs] when heat seeks to flow from a warm area(e. g., heated space) to a cooler area, such as a solar air collector at night without a reverse flow damper.  1, record 7, English, - reverse%20thermosiphoning

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Situation se produisant lorsque la chaleur tend à passer d'une zone chaude, par exemple un espace chauffé, à une zone froide, comme peut le faire durant la nuit un capteur solaire à air dépourvu de régulateur d'écoulement inversé.  2, record 7, French, - thermosiphon%20inverse

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

... a closure which consists of a normally held open damper installed in an air distribution system or in a wall or floor assembly, and designed to close automatically in the event of a fire in order to maintain the integrity of the fire separation.  3, record 8, English, - fire%20damper

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Dispositif d'obturation consistant en un registre normalement maintenu ouvert, placé soit dans un réseau de distribution d'air, soit dans un mur ou un plancher et conçu pour se fermer automatiquement en cas d'incendie afin d'assurer l'intégrité de la séparation coupe-feu.  5, record 8, French, - registre%20coupe%2Dfeu

Record number: 8, Textual support number: 1 OBS

registre coupe-feu : terme uniformisé par le Groupe de travail de terminologie du génie.  6, record 8, French, - registre%20coupe%2Dfeu

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

The 1. 4-million pound mobile launching platform is what the Atlas 5 sits upon from the time it is stacked together in the VIF [Vertical Integration Facility] until the main engine is fired at liftoff.... The platform is 45 feet wide, 55 feet long and 185 feet tall to the top of the mast, which features a wind damper that holds the rocket steady while exposed to the weather on the pad and routes propellant lines to the Centaur and conditioned air to the payload inside the nose cone.  2, record 9, English, - wind%20damper

Record 9,  Textual support,  French

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

A system in which the combustion rate of the burner can be set at either of 2 fixed levels.  3, record 10, English, - two%20stage%20firing

Record number: 10, Textual support number: 1 CONT

The RL 10-20-30 BLU series burners are available in three model structures with an output range from 73/124 kW to 356 kW. Twin nozzle two stage firing operation as standard, the combustion air is controlled by a three position hydraulic ram which allows the air damper to fully close when the burner is at rest.  4, record 10, English, - two%20stage%20firing

Record number: 10, Textual support number: 2 CONT

All models come with electric intermittent ignition pilot, adjustable high limit, 24 volt gas valve with either single-stage or two-stage firing. A motorized gas valve for modulation firing is also available.  2, record 10, English, - two%20stage%20firing

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 OBS

Les brûleurs monoétagés fonctionnent en «tout ou rien», c'est-à-dire toujours à pleine puissance. Pour améliorer le rendement et faciliter la régulation, on utilise dans le cas de chaudières dont la puissance dépasse 100 kW, des brûleurs à deux étages à un ou deux gicleurs. De tels brûleurs fonctionnent en régulation flottante, à savoir : arrêt - charge partielle - pleine charge [...] À chaque allure correspond un thermostat ou un régulateur de pression.  2, record 10, French, - combustion%20%C3%A0%20deux%20%C3%A9tages

Record number: 10, Textual support number: 2 OBS

[...] brûleurs à 2 allures.  2, record 10, French, - combustion%20%C3%A0%20deux%20%C3%A9tages

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

A flame safeguard control which recycles following a shutdown; it will restart the burner if conditions causing the shutdown have been corrected.  2, record 11, English, - recycling%20control

Record number: 11, Textual support number: 2 DEF

A primary safety control for automatically lighted burners which, upon accidental flame failure during a normal firing cycle and the subsequent shutoff of main burner fuel, will provide, after a pre-establishing shutdown period and under a normal starting program, one attempt to automatically light the main burner.  3, record 11, English, - recycling%20control

Record number: 11, Textual support number: 1 OBS

The interlock may be a combustion air controller..., a damper position indicator..., or a fuel pressure switch. It can be a recycling type, or it may require manual reset.  2, record 11, English, - recycling%20control

Record 11,  Textual support,  French

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

An interlock which proves a condition is proper for burner operation to continue through prepurge, ignition trials, and the run period. It is used with a primary or programming control which will shut down the burner if an improper conditions occurs. The interlock may be a combustion air controller(airflow switch), a damper position indicator(low or high fire proving switch), or a fuel pressure switch. It can be a recycling type, or it may require manual reset.  1, record 12, English, - running%20interlock

Record 12,  Textual support,  French

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 DEF

A flame safeguard control which does not recycle after shutdown.  1, record 13, English, - nonrecycling%20control

Record number: 13, Textual support number: 2 DEF

A primary safety control which, upon accidental flame failure during a normal firing cycle, causes a safety shutdown.  2, record 13, English, - nonrecycling%20control

Record number: 13, Textual support number: 1 OBS

The interlock may be a combustion air controller..., a damper position indicator..., or a fuel pressure switch. It can be a recycling type, or it may require manual reset.  1, record 13, English, - nonrecycling%20control

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 OBS

Le Sens-A-Flame est un système électronique de surveillance de flamme. Il détecte les défauts de flamme, enclenche une alarme et coupe l'alimentation en combustible. Il est disponible pour le contrôle de brûleurs séparés ainsi que de brûleurs multiples. Il comprend de nombreuses possibilités, sa technologie est complètement électronique, ses composants sont embrochables de façon à faciliter la maintenance. Il peut être utilisé avec électrode de flamme ou cellule U.V.  2, record 13, French, - dispositif%20de%20surveillance%20non%20r%C3%A9enclenchable

Record number: 13, Textual support number: 2 OBS

Flame Safeguard Control. Fireye: Régulateur automatique air/combustible, surveillance de flamme, télégestion de brûleur.  3, record 13, French, - dispositif%20de%20surveillance%20non%20r%C3%A9enclenchable

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

A running interlock used with a primary or programming control which will shut down the burner if an improper condition occurs. The control will recycle; it will restart the burner if the condition corrects itself. The interlock is usually a combustion air controller (airflow switch).  1, record 14, English, - recycle%20interlock

Record number: 14, Textual support number: 1 OBS

The interlock may be a combustion air controller..., a damper position indicator..., or a fuel pressure switch. It can be a recycling type, or it may require manual reset.  1, record 14, English, - recycle%20interlock

Record 14,  Textual support,  French

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 DEF

A prepurge period during which the air damper is driven open for the purge period and then back to low fire position for the burner lightoff.  1, record 15, English, - low%2Dhigh%2Dlow%20prepurge

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 OBS

Prébalage : [...] temps pendant lequel, pour les brûleurs de plus de 30 kg/h, le foyer est ventilé mécaniquement, sans appel de fuel; [...]  2, record 15, French, - pr%C3%A9balayage%20allures%20minimale%2Dmaximale%2Dminimale

Record number: 15, Textual support number: 2 OBS

Brûleurs à fuel [...] La plupart des installations fonctionnent par intermittence en régulation «tout ou rien», par conséquent avec brûleur à pleine marche ou à l'arrêt. Dans certaines grosses installations, on prévoit plusieurs allures.  2, record 15, French, - pr%C3%A9balayage%20allures%20minimale%2Dmaximale%2Dminimale

Record number: 15, Textual support number: 3 OBS

prébalayage / pre-purge.  3, record 15, French, - pr%C3%A9balayage%20allures%20minimale%2Dmaximale%2Dminimale

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 CONT

open damper purge. During prepurge, the damper opens to high fire position and the burner motor drives air through the combustion chamber to remove any potentially explosive fuel or fumes. The damper closes to low fire position for ignition trials, and opens again to high fire position for the run period. Flame safeguard controls providing this feature have only 1 terminal for firing rate switching; they do not provide modulation during the run period.  1, record 16, English, - open%20damper%20purge

Record 16,  Textual support,  French

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

The process of going through another operating cycle. For a flame safeguard control, automatically going through another timer cycle after a shutdown in an attempt to restart the burner.  1, record 17, English, - recycle

Record number: 17, Textual support number: 1 OBS

The interlock may be a combustion air controller..., a damper position indicator..., or a fuel pressure switch. It can be a recycling type, or it may require manual reset.  1, record 17, English, - recycle

Record 17,  Textual support,  French

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 CONT

Low-high-low prepurge-a prepurge period during which the air damper is driven open for the purge period and then back to low fire position for the burner lightoff. This is called low-high-low proven prepurge if suitable interlocks indicate that the damper actually reached the open position during prepurge, and then closed again before ignition trials.  1, record 18, English, - low%2Dhigh%2Dlow%20proven%20prepurge

Record number: 18, Textual support number: 1 OBS

See records "low-high-low prepurge", "proved ignition" and "proven prepurge".  2, record 18, English, - low%2Dhigh%2Dlow%20proven%20prepurge

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 OBS

Voir les fiches «prébalayage allures minimale-maximale-minimale», «allumage par étincelle contrôlée» et «prébalayage contrôlé».  1, record 18, French, - pr%C3%A9balayage%20contr%C3%B4l%C3%A9%20allures%20minimale%2Dmaximale%2Dminimale

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

A damper, circular in shape, with a contractible diaphragm consisting of pivoted shutters which can vary the aperture size.  2, record 19, English, - iris%20damper

Record number: 19, Textual support number: 1 CONT

... a single devise permits airflow to be adjusted and measured at one location, resulting in reduced field time and improved accuracy in air balancing. The new Iris Damper uses interlocking steel plates and a calibrated control lever to form an adjustable aperture.  3, record 19, English, - iris%20damper

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Registre constitué, dans un cadre circulaire, par un ensemble de petits volets dont le pivotement conjugué laisse au centre un passage de section variable.  2, record 19, French, - registre%20du%20type%20iris

Record number: 19, Textual support number: 1 CONT

On distingue par exemple les types [de registres] suivants : [...] - registres du type iris, comportant des volets en forme de secteur [...]  1, record 19, French, - registre%20du%20type%20iris

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

A valve or plate regulating the flow of air or other fluid.  2, record 20, English, - damper

Record number: 20, Textual support number: 1 CONT

The damper is usually a sheet metal disc that can be turned inside the round supply duct to adjust the flow of air...  3, record 20, English, - damper

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 DEF

Organe placé dans un conduit aéraulique, dans un conduit de fumée, ou, d'une manière générale, dans tout conduit, pour régler le débit de fluide en faisant pivoter une ou plusieurs lames autour d'un ou de plusieurs axes.  3, record 20, French, - registre

Record number: 20, Textual support number: 1 CONT

Un registre se présente le plus souvent sous forme d'un (ou deux) volet(s) d'air servant à régler le débit de cet air dans une canalisation ou gaine de soufflage. Il peut également faire partie d'une grille ou bouche de soufflage (grille à registre, c'est-à-dire munie de volets de réglage).  4, record 20, French, - registre

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 CONT

In addition to its main and obvious function the ashpan is provided to regulate, through damper doors, the amount of air entering the grate.  3, record 21, English, - ashpan

Record number: 21, Textual support number: 2 CONT

The ashpan is made of plate iron 1/4 inch in thickness, framed with angle iron, having a band of flat iron at the top.  4, record 21, English, - ashpan

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 DEF

Espace libre, situé au-dessous du foyer d'une locomotive, où tombent les escarbilles, les cendres.  2, record 21, French, - cendrier

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 DEF

A furnace equipped with a fan that provides the primary means for the circulation of air.  6, record 22, English, - forced%2Dair%20furnace

Record number: 22, Textual support number: 1 CONT

Warm air furnaces are of two types, gravity and forced air. Forced warm air furnaces use a motor-driven blower to circulate air over the heat exchanger and through the ducts. A draft hood is attached to the outlet of the furnace and replaces the barometric damper.  4, record 22, English, - forced%2Dair%20furnace

Record number: 22, Textual support number: 1 OBS

Forced-warm-air furnaces are most commonly fired by LP gas, natural gas or oil and occasionally by wood and coal. They may also operate electrically.  7, record 22, English, - forced%2Dair%20furnace

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 DEF

Générateur d'air chaud doté d'un ventilateur qui constitue le moyen principal de circulation de l'air.  2, record 22, French, - g%C3%A9n%C3%A9rateur%20d%27air%20puls%C3%A9

Record number: 22, Textual support number: 1 CONT

Générateurs d'air pulsé. (...) ces générateurs sont constitués des éléments suivants : -un caisson d'aspiration (...) -un ventilateur centrifuge (...) -un corps de chauffe (...) -un bloc de distribution à plusieurs bouches; -une sortie de fumée avec modérateur de tirage. L'ensemble est enfermé dans un habillage calorifugé en acier laqué; il est complété par un organe de régulation qui commande la marche du ventilateur en fonction de la température de l'air.  1, record 22, French, - g%C3%A9n%C3%A9rateur%20d%27air%20puls%C3%A9

Record number: 22, Textual support number: 1 OBS

Dans le système de chauffage à air pulsé, la circulation d'air est assurée par un ventilateur électrique (...) Ce système permet de placer la fournaise n'importe où et d'utiliser des conduits plus étroits et plus longs.  6, record 22, French, - g%C3%A9n%C3%A9rateur%20d%27air%20puls%C3%A9

Record number: 22, Textual support number: 2 OBS

Fournaise : Ce terme est considéré comme impropre par les puristes. Selon Dagenais, dans son "Dictionnaire des difficultés de la langue française au Canada", "fournaise" serait un calque de l'anglais "furnace" et nous devrions plutôt dire "chaudière" lorsque le fluide caloporteur est l'eau ou la vapeur et "générateur d'air chaud", lorsque le fluide, est l'air. Cependant, ce terme reste d'usage fréquent au Québec, autant en langue parlée qu'en langue écrite.  3, record 22, French, - g%C3%A9n%C3%A9rateur%20d%27air%20puls%C3%A9

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 DEF

Multiblade damper to prevent outside air from passing through the unit in reverse direction when the fan is not operating.  1, record 23, English, - backdraft%20damper

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 OBS

Clapet de retenue ou clapet antiretour: accessoire de tuyauterie destiné à empêcher le retour en arrière du produit qui y circule [...]  4, record 23, French, - persienne%20antiretour

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 CONT

The high pressure atomizing type gun... burner supplies oil to the atomizing nozzle at 689 to 2067 kPa. A blower is used to supply the air for combustion, and a damper or other adjustable means regulates the air supply at the burner. Ignition is usually established by a high voltage electric spark which may be intermittent, sometimes called constant ignition(on when the burner motor is on) or interrupted(on only to start combustion). Typically these burners fire into a combustion chamber in which negative draft is maintained.  1, record 24, English, - constant%20ignition

Record 24,  Textual support,  French

Record 24,  Textual support,  Spanish

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 OBS

Inlet air is proportioned through the heating and bypass channels by V shaped "Air-Flow-Line" dampers, positioned by a damper motor. The patented "Air-Flow-Line" dampers guide a smooth flow of air through the section to reduce air static losses. These dampers maintain a constant pressure drop and, therefore, a constant air volume through the heating coil is maintained regardless of damper position.(from an advertising leaflet of WING who manufactured the IFB [Integral face-and-bypass] heating coil).  2, record 25, English, - face%2Dand%2Dbypass%20damper

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 OBS

Il s'agit d'un appareil qui décide de la quantité d'air qui doit passer par une prise d'air pour climatisateur d'immeuble en fonction de la température de l'air à l'extérieur. Si l'air doit être chauffé, il entre directement vers l'unité de chauffage; s'il est déjà chaud, des conduites de dérive lui font éviter l'unité de chauffage.  1, record 25, French, - registre%20de%20conduites%20directes%20et%20de%20d%C3%A9rivation

Record number: 25, Textual support number: 2 OBS

La proposition est utilisée à la section technique à Montréal.  1, record 25, French, - registre%20de%20conduites%20directes%20et%20de%20d%C3%A9rivation

Record 25,  Textual support,  Spanish

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 OBS

An outdoor-air intake can be provided in a forced-air system, for introducing outdoor ventilation air into the structure.... This outdoor air should be conveyed through an individual duct leading from the outdoors directly to the return plenum of the furnace and should be provided with a manually-operated damper.  2, record 26, English, - outdoor%2Dair%20duct

Record 26,  Textual support,  French

Record number: 26, Textual support number: 1 CONT

[Chauffage à air chaud.] Gaines de prise d'air neuf (...) Dans le but de renouveler l'air des locaux, on peut reprendre de l'air à l'extérieur soit en partie, soit en totalité. Le raccord à la chaudière se fait à l'aide d'un té. Une des branches apporte l'air neuf, l'autre l'air de reprise. Un registre permet de régler la proportion d'air frais par rapport à l'air de reprise. Ce système provoque une dépense supplémentaire en combustible. En effet, il faut élever la température de l'air venant de l'extérieur à la température de soufflage.  4, record 26, French, - gaine%20de%20prise%20d%27air%20neuf

Record number: 26, Textual support number: 1 OBS

En chauffage, la préférence semble aller au terme "gaine" plutôt qu'au terme "conduit". Cependant l'Ordre des architectes du Québec en déconseille l'emploi dans l'usage canadien.  5, record 26, French, - gaine%20de%20prise%20d%27air%20neuf

Record 26,  Textual support,  Spanish

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 CONT

Warm Air Registers ... can be installed in the floor, the baseboard, above the baseboard, high in the side wall, in the ceiling, in the window ledge, or in any other place to which a duct can be run.... In general (a) the register should introduce the air into the room in such a manner that the air does not strike an occupant that is seated and at rest, (b) it should tend to overcome the downdrafts that occur below windows and cold walls, (c) it should not interfere with furniture placement.  1, record 27, English, - warm%20air%20register

Record number: 27, Textual support number: 1 OBS

air register : Combination grille and damper used on the end of a duct system to direct the airflow into a room.  2, record 27, English, - warm%20air%20register

Record 27,  Textual support,  French

Record number: 27, Textual support number: 1 OBS

grille à registre : Ensemble apparié d'une grille et d'un registre.  2, record 27, French, - grille%20%C3%A0%20registre%20%C3%A0%20air%20chaud

Record 27,  Textual support,  Spanish

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 CONT

Burner Efficiency Tests and Adjustments. For burner adjustment the serviceman measures the draft that provides air for combustion and the smoker or soot content of the exiting flue gases.... Measurements are made through a small hole in the flue pipe within 46 cm of the flue gas exit on the furnace. If the layout of the flue pipe makes this impossible, the serviceman has to make a hole wherever he can.... It should be located between the furnace and the barometric damper but not directly beside the barometric damper.  1, record 28, English, - barometric%20damper

Record 28,  Textual support,  French

Record 28,  Textual support,  Spanish

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 CONT

It is advisable, where physically possible, to size the fresh-air duct for the full capacity of the air-handling unit.... A damper in the fresh-air duct will throttle the air to 1000 ft 3/min during the cooling season;....  1, record 29, English, - fresh%2Dair%20duct

Record 29,  Textual support,  French

Record number: 29, Textual support number: 1 CONT

(...) schéma d'une installation climatique où l'on remarque: (...) la gaine (ou conduit) d'air neuf, communiquant avec l'extérieur par une prise d'air neuf; (...)  1, record 29, French, - gaine%20d%27air%20neuf

Record 29,  Textual support,  Spanish

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 CONT

Baghouse Types. Baghouses are generally referred to by their construction as either compartmented or uncompartmented. The compartmented bag collector(Figure 12) is used with either reverse air flow or shaker type bag cleaning. This type of collector is divided into several compartments, each with its own damper and bag cleaning system. One compartment at a time can be taken out of service to release the dust from the bags into the bottom hopper.  1, record 30, English, - compartmented%20bag%20collector

Record 30,  Textual support,  French

Record 30,  Textual support,  Spanish

Record 31,  Textual support,  English

Record number: 31, Textual support number: 1 CONT

The diaphragm [of the air cleaner with a thermostatic control] is pushed upward by atmospheric pressure and the diaphragm spring is compressed. In this position, the linkage from the diaphragm raises the damper valve.  1, record 31, English, - damper%20valve

Record 31,  Textual support,  French

Record 31,  Textual support,  Spanish

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 CONT

A vacuum override motor is connected to the flap inside the snorkel of some thermostatically controlled damper flap units. When a cold engine is accelerating, the vacuum diaphragm overrides the thermostat control to open the damper flap. This allows outside air as well as heated air to enter the system.  2, record 32, English, - vacuum%20override%20motor

Record 32,  Textual support,  French

Record 32,  Textual support,  Spanish

Record 33,  Textual support,  English

Record number: 33, Textual support number: 1 CONT

Forced Air Wood Furnaces. Central wood-burning furnaces are controlled by a wall mounted thermostat in the living area. Temperature and fan controls are the same as those found on oil and gas furnaces. Unlike room heaters, which produce a steady heat output by periodic manual adjustments of the draft control, most wood furnaces operate in cycles. A cycle starts with the thermostat sensing that heat is needed in the room where it is located. It signals the furnace control system which opens the combustion air damper and a hot fire develops. When the air inside the furnace's sheet metal casing gets hot, a preset fan control starts the circulating blower and the warm air is moved through the ducts to all areas of the house.  1, record 33, English, - forced%20air%20wood%20furnace

Record 33,  Textual support,  French

Record 33,  Textual support,  Spanish

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 CONT

With conventional gas furnaces, little can be done to prevent losses of heated house air up the chimney when the furnace is firing. What can be prevented, though, is the loss that occurs when the furnace is not firing. A positive vent damper consists of a tight-fitting hinged damper door mounted in a steel collar and fitted into the flue pipe just before the pipe enters the chimney base. A fail-safe interlock switch prevents the furnace from firing unless the damper is completely open. This device may also be used with propane furnace.  1, record 34, English, - positive%20vent%20damper

Record 34,  Textual support,  French

Record 34,  Textual support,  Spanish

Record 35,  Textual support,  English

Record number: 35, Textual support number: 1 OBS

Outdoor air intake openings into the cold air return system shall be provided with a manually operated or automatic damper.  1, record 35, English, - cold%20air%20return%20system

Record 35,  Textual support,  French

Record number: 35, Textual support number: 1 OBS

Les prises d'air extérieures d'un circuit de reprise d'air froid doivent être munies d'un registre manuel ou automatique.  1, record 35, French, - circuit%20de%20reprise%20d%27air%20froid

Record 35,  Textual support,  Spanish