AIR CONDITIONING SYSTEM HAVING ACTIVELY CONTROLLED AND STABILIZED HOT GAS REHEAT CIRCUIT
First Claim
1. A method for controlling an air conditioning system, the method comprising:
- routing refrigerant through an evaporator to cool air in a space;
proportioning refrigerant flow from the evaporator between a condenser circuit and a hot gas reheat circuit that heats air leaving the evaporator;
routing refrigerant flow from the condenser circuit and the hot gas reheat circuit through an expansion device and back to the evaporator;
monitoring a first temperature at the evaporator; and
stabilizing proportioning of refrigerant flow between the condenser circuit and the hot gas reheat circuit based on the monitored first temperature.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for controlling an air conditioning system comprises routing refrigerant through an evaporator to cool air in a space, proportioning refrigerant flow from the evaporator between a condenser circuit and a hot gas reheat circuit that heats air leaving the evaporator, routing refrigerant flow from the condenser circuit and the hot gas reheat circuit through an expansion device and back to the evaporator, monitoring a first temperature at the evaporator, stabilizing proportioning of refrigerant flow between the condenser circuit and the hot gas reheat circuit based on the monitored first temperature.
-
Citations
26 Claims
-
1. A method for controlling an air conditioning system, the method comprising:
-
routing refrigerant through an evaporator to cool air in a space; proportioning refrigerant flow from the evaporator between a condenser circuit and a hot gas reheat circuit that heats air leaving the evaporator; routing refrigerant flow from the condenser circuit and the hot gas reheat circuit through an expansion device and back to the evaporator; monitoring a first temperature at the evaporator; and stabilizing proportioning of refrigerant flow between the condenser circuit and the hot gas reheat circuit based on the monitored first temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An air conditioning system comprising:
-
a vapor-compression circuit comprising an evaporator, a compressor, a condenser and an expansion device; a reheat coil arranged in parallel with the condenser to form a hot gas reheat circuit; a valve arrangement configured to proportion refrigerant flow from the compressor to the reheat coil and the condenser; a first temperature sensor configured to sense a first temperature at the evaporator; and a controller configured to limit proportioning of the refrigerant flow by the valve arrangement based on the first temperature. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
-
20. A controller for an air conditioning system having a vapor-compression circuit and a hot gas reheat circuit, the controller comprising:
-
a first input for receiving a first temperature signal from a first temperature sensor at the hot gas reheat circuit of the air conditioning system; a second input for receiving a second temperature signal from a second temperature sensor at an inlet of an evaporator in the vapor-compression circuit; and circuitry configured to; generate a valve control signal for controlling a reheat valve that controls refrigerant flow through the hot gas reheat circuit based on the first temperature signal in order to maintain a temperature of a space cooled by the evaporator; and generate a stabilization signal to override the valve control signal based on the second temperature signal. - View Dependent Claims (21, 22, 23, 24, 25, 26)
-
Specification