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Heating, ventilation, air conditioning and refrigeration system with multi-zone monitoring and diagnostics

A refrigeration system, refrigerant technology, applied in heating and ventilation control systems, heating and ventilation safety systems, air conditioning systems, etc., can solve problems affecting climate control areas, secondary system damage, resident discomfort, etc.

Inactive Publication Date: 2009-09-09
CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such problems are not detected and isolated in a timely manner, faulty or damaged components may cause damage to other components of the secondary system
Additionally, faulty equipment in one zone may affect the operation of system components in other zones causing discomfort to residents of climate-controlled zones

Method used

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  • Heating, ventilation, air conditioning and refrigeration system with multi-zone monitoring and diagnostics

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] figure 1 Shown is a refrigeration system 20 having a compressor 22 that compresses and passes refrigerant to a condenser 24 . An expansion device 26 is disposed at a location downstream of the condenser 24, and an evaporator 28 is disposed at a location downstream of the expansion device 26, both with respect to refrigerant flow through the system. An air drive such as a fan 30 blows the air over the evaporator 28 and directs the air into a common air supply duct 38 which leads to separate ducts 40 and 42 which will be conditioned for temperature and humidity The air is passed into separate climate control zones 44 and 46. As is well known, a temperature sensor 48 is provided in each climate control zone to sense the air temperature in that zone. Likewise, humidity or carbon dioxide sensors (not shown) may be provided in separate air supply lines 40 and 42 or in climate controlled zones 44 and 46 . The damper 50 is controlled by a main system controller 34 (or a sepa...

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PUM

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Abstract

A multi-zone HVAC&R system has its control programmed to provide diagnostic testing of air handling components and refrigerant components associated with each climate controlled zone in sequence. The control changes the original position of the corresponding component and a resultant change in a relevant operational parameter is sensed. If the actual change is outside of the tolerance band associated with the expected change, then the determination is made that the component under consideration is malfunctioning. The periodicity of a diagnostic procedure for a particular component is typically defined by its criticality and reliability level. If the change in the corresponding operation parameter is recorded and stored in the database, the component degradation can be observed over time and a prognostic prediction can be made when a particular component requires preventive maintenance or replacement.

Description

【Technical field】 [0001] This application relates to a heating, ventilation, air conditioning and refrigeration (HVAC&R, Heating Ventilation, Air Conditioning and Refrigeration) system in which conditioned air is delivered to a plurality of climate control zones and wherein the The system components are provided with monitoring and diagnostic testing procedures. 【Background technique】 [0002] The well known refrigeration systems are utilized in many applications such as air conditioning, refrigeration and heat pump systems to condition (maintain temperature and humidity) the air being introduced into a climate controlled environment. Other second fluids (other than air) such as water or glycol may also be used. A single refrigeration system that provides conditioned air to multiple different climate-controlled zones is not an unusual application in modern HVACR. For example, climate-controlled areas might be different rooms or offices within a single building or different...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/00F24D19/10G01K13/00F24F3/00
CPCG01K15/00F24F11/0012F25B2500/06F24F11/0086G01K15/007G01K13/00F25B49/005F24F11/30F24F2110/10F24F11/38
Inventor M·F·塔拉斯A·利夫森
Owner CARRIER CORP
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