Integrated Controller And Fault Indicator For Heating And Cooling Systems
First Claim
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1. An integrated controller for controlling a vapor compression based space conditioning system comprising:
- a thermostat module, a humidistat module and a fault diagnosis module.
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Abstract
An integrated controller for controlling a vapor compression based heating and cooling system. The integrated controller includes modules for independently controlling dry bulb temperature, humidity level, and incorporating a fault detection module therewith. The fault detection module being capable of detecting abnormal refrigerant levels using only temperature sensors on the condenser with thermal expansion valve or evaporator with fixed orifice type of expansion valve.
133 Citations
15 Claims
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1. An integrated controller for controlling a vapor compression based space conditioning system comprising:
- a thermostat module, a humidistat module and a fault diagnosis module.
- View Dependent Claims (2, 3, 4, 5, 6)
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7. An integrated controller for controlling temperature and humidity in an enclosed building space by controlling a typical heating and air-conditioning system;
- said integrated controller having a thermostat module with resetable minimum and maximum limits, a humidistat module with resetable minimum and maximum limits, a fault indication module having fault indicators for air-flow including temperature sensors in a supply air stream and a return air stream; and
refrigerant levels and having sensors for sensing condenser saturated temperature and condenser liquid outlet temperature. - View Dependent Claims (8, 9)
- said integrated controller having a thermostat module with resetable minimum and maximum limits, a humidistat module with resetable minimum and maximum limits, a fault indication module having fault indicators for air-flow including temperature sensors in a supply air stream and a return air stream; and
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10. A method of controlling a dry bulb and wet bulb temperature within a building space including the steps of:
- sensing said dry bulb temperature;
sensing said wet bulb temperature;
comparing these sensed temperatures and controlling a heating and air-conditioning system for removing sensible heat load or latent heat load to the extant possible as required to maintain a comfortable level of each within said space. - View Dependent Claims (11, 12, 13, 14, 15)
- sensing said dry bulb temperature;
Specification