Method for regulation of ventilation as well as an air-conditioning device used in the method
First Claim
1. A method for regulation of ventilation, said method comprising the steps of removing air out of a room space through an air-conditioning device as outlet air and in said air-conditioning device, recirculating part of the outlet air as return air back into the room space, whereby said return air is mixed with outdoor air to be passed into the room space wherein, before the outlet air is made to flow via a return-air damper to the point of mixing of return air and outdoor air, causing the outlet air to flow first through a blower and then through an outlet-air damper placed in one outlet-air duct and, thereupon, via the return-air damper, and simultaneously removing as waste air the portion of the outlet air that is not recirculated via the return-air damper, without throttling, out of the air-conditioning device.
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Accused Products
Abstract
A method for regulation of ventilation, wherein air is removed out of a room space (H) or equivalent through an air-conditioning device (10) as outlet air (L1) and in which said air-conditioning apparatus (10) part of the outlet air is recirculated as return air (L2) back into the room space, whereby return air (L2) is mixed with outdoor air to be passed into the room space. Before the outlet air (L1) is made to flow via the return-air damper (15) to the point of mixing (C) of return air (L2) and outdoor air, the outlet air is fitted to flow first via the outlet-air damper (14) placed on the outlet-air duct (11a) and, thereupon, via the return-air damper (15). The portion (L3) of the outlet air (L1) that is not recirculated via the return-air damper (15) or equivalent is removed as waste air (L3), without throttling, out of the air-conditioning device. The invention also concerns an air-conditioning apparatus.
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Citations
10 Claims
- 1. A method for regulation of ventilation, said method comprising the steps of removing air out of a room space through an air-conditioning device as outlet air and in said air-conditioning device, recirculating part of the outlet air as return air back into the room space, whereby said return air is mixed with outdoor air to be passed into the room space wherein, before the outlet air is made to flow via a return-air damper to the point of mixing of return air and outdoor air, causing the outlet air to flow first through a blower and then through an outlet-air damper placed in one outlet-air duct and, thereupon, via the return-air damper, and simultaneously removing as waste air the portion of the outlet air that is not recirculated via the return-air damper, without throttling, out of the air-conditioning device.
- 4. An air-conditioning apparatus which comprises an outlet-air duct and therein a first blower, and an inlet-air duct and therein a second blower, and a return-air duct which interconnects said ducts and through which return air is recirculated from the outlet-air duct into the inlet-air duct, and said air-conditioning apparatus comprises a waste-air duct connected to said outlet-air duct and the apparatus comprises an outdoor-air duct connected to said inlet-air duct, and said apparatus comprises a return-air damper in said return-air duct and an outdoor-air damper in the outdoor-air duct, and wherein said apparatus further comprises an outlet-air damper placed in the outlet-air duct, said outlet-air damper placed in the outlet-air duct such that said return air passes through said outlet-air damper before passing through said return air duct, and said outlet-air damper being positioned after said first blower in the direction of air flow, said outlet-air damper being fitted to be placed before the return-air damper, relative to the air flow, whereby the portion of the outlet air that does not flow as return air into the inlet-air duct is removed from the apparatus as waste air without throttling, whereas the return air is mixed with an outdoor-air flow introduced along the outdoor-air duct.
Specification