GB998364A - Improvements in or relating to room ventilators - Google Patents
Improvements in or relating to room ventilatorsInfo
- Publication number
- GB998364A GB998364A GB42271/62A GB4227162A GB998364A GB 998364 A GB998364 A GB 998364A GB 42271/62 A GB42271/62 A GB 42271/62A GB 4227162 A GB4227162 A GB 4227162A GB 998364 A GB998364 A GB 998364A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dampers
- air
- damper
- room
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
Abstract
998,364. Air conditioning units. AMERICAN AIR FILTER CO. Inc. Nov. 8, 1962 [Nov. 10, 1961], No. 42271/62. Heading F4V. In a unit air conditioner air from damper controlled room air and fresh air inlets 12 and 14 passes through a filter 18 and is apportioned by a set of dampers 20 between a cooling passage 22 containing a cooling coil 28 having a condensate drip pan 32 and a heating passage 24 containing a heating coil 30, the dampers 20 being controlled by a room thermostat. The air inlet dampers comprise two dampers 40 linked to move together and control the fresh air flow and a counterbalanced damper 38 controls the admission of room air to the unit. The air inlet dampers are operated by a rod 48 connected through a bell-crank 50 and links 54, 56 and 58 to the dampers 40 and through further links 62 and 64 having slotted connections to the room air damper 38, the arrangement being such that as the dampers 40 open, the damper 38 closes and vice versa. Dampers 44 control the air flow through the cooling passage 22 and a damper 42 controls the flow through the heating passage 24, these dampers being operated by a rod 66 through a bellcrank 68 and links 70, 72, 74, 76 such that when the heating passage damper 42 is open the cooling passage dampers 44 are closed and vice versa. The above described components, apart from the damper operating mechanism, are housed in a central compartment of the ventilator separated by two walls, Fig. 2 (not shown), in which the various damper shafts 46 are journalled from end compartments housing the damper operating mechanism; the motor for two fans 34, piping connections, and automatic temperature control components. A pneumatic control system for the dampers is shown in Fig. 5. The heating and cooling passage dampers are controlled by a unit 82 supplied with air through a main line 78 including a room thermostat 80 which passes increasing pressure with increasing room temperature and vice versa. The unit 82 and the thermostat 80 are so arranged that a temperature of 2 degrees below the required room temperature corresponds to a supply pressure of 3 p.s.i. and a temperature 2 degrees above the required temperature corresponds to a pressure of 9 p.s.i. and between these two pressures the unit 82 moves the dampers 42 and 44 from fully open to fully closed (Fig. 7) and outside this pressure range the dampers are retained fully open or closed. A valve 84 in the position shown in Fig. 5 connects a unit 86 operating the air inlet dampers with the main air supply line. The unit 86 is arranged to operate the fresh air and room air dampers in accordance with air supply pressure in response to the room thermostat 80 as shown in Fig. 6. Thus, outside the range of required room temperature 2 degrees control of the temperature of air supplied to the room is by means of adjustment of the air inlet dampers while for the greater part of the range between these temperatures the air inlet dampers are at constant settings. In winter the operating arrangement is as above, with a heating medium supplied to the heating coil 30 but no cooling medium supplied to the cooling coil 28 so that any cooling function is carried out solely by the admission of fresh air. During hot weather a cooling medium only is circulated and an outdoor air thermostat responds to temperatures above a given value and actuates a relay 92 which turns the valve 84 90 degrees anticlockwise so that the air inlet damper operating unit 86 communicates with a constant 3 p.s.i. air line 88 so that the air inlet dampers 38 and 40 are at constant settings and temperature is controlled solely by the heating and cooling passage dampers 42 and 40 in response to the room thermostat 80. In modifications, both the heating and cooling coils may be supplied with heat exchange media, the control system may be electric or electronic, the supply of the heating medium may be valve controlled in response to a thermostat, the heating medium temperature may be reset in accordance with outside air temperatures and a cam linkage may be used to operate all the dampers 38, 40, 42 and 44 from a single operating unit. Specification 998,363 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US151508A US3193000A (en) | 1961-11-10 | 1961-11-10 | Unit ventilator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB998364A true GB998364A (en) | 1965-07-14 |
Family
ID=22539085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB42271/62A Expired GB998364A (en) | 1961-11-10 | 1962-11-08 | Improvements in or relating to room ventilators |
Country Status (3)
Country | Link |
---|---|
US (1) | US3193000A (en) |
DE (1) | DE1454530A1 (en) |
GB (1) | GB998364A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989002566A1 (en) * | 1987-09-15 | 1989-03-23 | Ilmaterä Oy | A device for controlling and closing gas flows |
GB2234421B (en) * | 1989-08-04 | 1993-08-25 | Spooner Ind Ltd | Heating or drying apparatus |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299796A (en) * | 1964-11-17 | 1967-01-24 | Carrier Corp | Air conditioning unit |
US3286479A (en) * | 1965-03-31 | 1966-11-22 | Carrier Corp | Inlet air control |
US3367259A (en) * | 1965-12-06 | 1968-02-06 | Harlow D. Savage Jr. | Air mixing apparatus |
US3394754A (en) * | 1966-08-08 | 1968-07-30 | Mammtoth Ind Inc | Method and apparatus for controlling air flow |
DE1679547C3 (en) * | 1967-08-24 | 1974-06-12 | Ltg Lufttechnische Gmbh, 7000 Stuttgart | Convector device for influencing the temperature of rooms |
FR2098465A5 (en) * | 1969-03-26 | 1972-03-10 | Henriot Maurice | |
US4109705A (en) * | 1973-12-04 | 1978-08-29 | Knut Bergdahl | Heat exchange in ventilation installation |
SE416347B (en) * | 1973-12-04 | 1980-12-15 | Knut Bergdahl | SET AND DEVICE FOR DEFROSTING SWITCH EXCHANGE |
US4199101A (en) * | 1979-01-26 | 1980-04-22 | Johnson Controls, Inc. | Multiple load integrated fluid control units |
US5318099A (en) * | 1992-08-17 | 1994-06-07 | Johnson Service Company | Method and apparatus for emulating a perimeter induction unit air conditioning system |
FI122286B (en) * | 2006-01-16 | 2011-11-15 | Halton Oy | Supply air device and method for controlling the amount of air flow |
US8955763B2 (en) * | 2007-10-04 | 2015-02-17 | Consolidated Edison Company Of New York, Inc. | Building heating system and method of operation |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2130606A (en) * | 1936-10-31 | 1938-09-20 | Wanamaker Ernest | Air conditioning |
US3004752A (en) * | 1959-01-12 | 1961-10-17 | Gen Motors Corp | Integrated automotive heating and air conditioning systems |
US3122202A (en) * | 1960-06-14 | 1964-02-25 | Harry J Scharres | Apparatus for heating and cooling air |
-
1961
- 1961-11-10 US US151508A patent/US3193000A/en not_active Expired - Lifetime
-
1962
- 1962-11-08 GB GB42271/62A patent/GB998364A/en not_active Expired
-
1964
- 1964-12-10 DE DE19641454530 patent/DE1454530A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989002566A1 (en) * | 1987-09-15 | 1989-03-23 | Ilmaterä Oy | A device for controlling and closing gas flows |
GB2234421B (en) * | 1989-08-04 | 1993-08-25 | Spooner Ind Ltd | Heating or drying apparatus |
Also Published As
Publication number | Publication date |
---|---|
US3193000A (en) | 1965-07-06 |
DE1454530A1 (en) | 1969-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2327664A (en) | Method of and apparatus for air conditioning | |
US1949735A (en) | Apparatus for ventilating and conditioning buildings | |
GB998364A (en) | Improvements in or relating to room ventilators | |
US2189895A (en) | Heating and ventilating system | |
US3989097A (en) | Dehumidification controls | |
GB1301127A (en) | Apparatus for air conditioning | |
US2372839A (en) | Air conditioning system | |
US2109512A (en) | Circulation system | |
GB972077A (en) | Air conditioning system | |
US2004927A (en) | Method and apparatus for ventilating buildings | |
US2739794A (en) | Air heating and cooling apparatus | |
US1985050A (en) | Air conditioning system | |
US2547657A (en) | Thermostatic selective heating, cooling, and circulating interlocking control system | |
US2500775A (en) | Apparatus for the controlled germination of grain during malting | |
US1770765A (en) | Control for air conditioners | |
US2001704A (en) | Apparatus for cooling and ventilating buildings | |
US2053042A (en) | Air conditioning | |
US1840565A (en) | Method of and apparatus for controlling temperature and humidity | |
US2334445A (en) | Air-conditioning system | |
GB463369A (en) | Improvements in air conditioning plant | |
US1972766A (en) | Heating, ventilating, and air conditioning apparatus | |
US2979265A (en) | Room ventilating method and apparatus | |
US3758368A (en) | Automatic air conditioning system | |
GB1454199A (en) | Air conditioning unit | |
US2069418A (en) | Temperature regulation |