System and method to control sensible and latent heat in a storage unit

Abstract

A climate control system for a storage unit. The system includes a reverse cycle chiller; a fluid supply line in fluid communication with an outlet of the fluid side heat exchanger; a fluid return line in fluid communication with an inlet of the fluid side heat exchanger and the fluid supply line; at least one hydronic coil in optional fluid communication with the fluid supply line and the fluid return line, the at least one hydronic coil located in a room to be controlled; a controller in communication with the reverse cycle chiller and the at least one hydronic coil; an ambient temperature sensor in communication with the controller; an ambient humidity sensor in communication with the controller; a room temperature sensor in communication with the controller, the room temperature sensor positioned in the room; and a room humidity sensor in communication with the controller, the room humidity sensor positioned in the room. A method of controlling the climate in a storage unit is also described.

1 . A modular chiller comprising:
 a reversing valve;   a first module comprising:
 a compressor in fluid communication with the reversing valve; and 
 a fluid side heat exchanger in fluid communication with the reversing valve; and 
 a fluid circulating pump; and 
   a second module comprising:
 an air side heat exchanger in fluid communication with the reversing valve and the fluid side heat exchanger; and 
 a fan, 
 wherein the first module and the second module are installed as a single unit in one outdoor location or the first module is installed in an indoor location and the second module is installed in an outdoor location. 
   
     
     
         2 . The modular chiller of  claim 1  wherein the compressor is a single capacity compressor, or a combinations of a single capacity compressor and a variable capacity compressor. 
     
     
         3 . The modular chiller of  claim 2  wherein the compressor is a combination of the single capacity compressor and the variable capacity compressor and wherein the variable capacity compressor is a time proportioned scroll compressor; a tandem compressor with two or more single speed compressors having a single suction and discharge manifold; a tandem compressor with a single-speed compressor and a variable-capacity compressor; a variable speed scroll type compressor; a variable speed piston type compressor; an infinitely adjustable capacity screw type compressor with a sliding valve; or combinations thereof. 
     
     
         4 . The modular chiller of  claim 1  wherein the compressor is a variable capacity compressor and wherein the variable capacity compressor is a time proportioned scroll compressor; a tandem compressor with two or more single speed compressors having a single suction and discharge manifold; a tandem compressor with a single-speed compressor and a variable-capacity compressor; a variable speed scroll type compressor;
 a variable speed piston type compressor; an infinitely adjustable capacity screw type compressor with a sliding valve; or combinations thereof. 
 
     
     
         5 . The modular chiller of  claim 1  wherein the reversing valve is located in the first module. 
     
     
         6 . The modular chiller of  claim 1  wherein the first module and the second module are installed as the single unit on an outdoor wall. 
     
     
         7 . The modular chiller of  claim 1  wherein the fluid side heat exchanger is positioned above the air side heat exchanger. 
     
     
         8 . The modular chiller of  claim 1  wherein the fluid side heat exchanger is positioned below the air side heat exchanger. 
     
     
         9 . A modular chiller comprising:
 a reversing valve;   a first module comprising:
 a variable capacity compressor in fluid communication with the reversing valve; and 
 a fluid side heat exchanger in fluid communication with the reversing valve; and 
 a fluid circulating pump; and 
 a second module comprising: 
 an air side heat exchanger in fluid communication with the reversing valve and the fluid side heat exchanger; and 
 a fan, 
 wherein the first module and the second module are installed as a single unit in one outdoor location or the first module is installed in an indoor location and the second module is installed in an outdoor location. 
   
     
     
         10 . The modular chiller of  claim 8  wherein the variable capacity compressor is a time proportioned scroll compressor; a tandem compressor with two or more single speed compressors having a single suction and discharge manifold; a tandem compressor with a single-speed compressor and a variable-capacity compressor; a variable speed scroll type compressor; a variable speed piston type compressor; an infinitely adjustable capacity screw type compressor with a sliding valve; or combinations thereof. 
     
     
         11 . The modular chiller of  claim 9  wherein the reversing valve is located in the first module. 
     
     
         12 . The modular chiller of  claim 9  wherein the first module and the second module are installed as the single unit on an outdoor wall. 
     
     
         13 . The modular chiller of  claim 9  wherein the fluid side heat exchanger is positioned above the air side heat exchanger. 
     
     
         14 . The modular chiller of  claim 9  wherein the fluid side heat exchanger is positioned below the air side heat exchanger. 
     
     
         15 . A modular chiller comprising:
 a first module comprising:
 a reversing valve; 
 a compressor in fluid communication with the reversing valve; and 
 a fluid side heat exchanger in fluid communication with the reversing valve; and 
 a fluid circulating pump; and 
   a second module comprising:
 an air side heat exchanger in fluid communication with the reversing valve and the fluid side heat exchanger; and 
 a fan, 
 wherein the first module and the second module are installed as a single unit in one outdoor location or the first module is installed in an indoor location and the second module is installed in an outdoor location. 
   
     
     
         16 . The modular chiller of  claim 15  wherein the compressor is a single capacity compressor, or a combinations of a single capacity compressor and a variable capacity compressor. 
     
     
         17 . The modular chiller of  claim 15  wherein the compressor is a variable capacity compressor and wherein the variable capacity compressor is a time proportioned scroll compressor; a tandem compressor with two or more single speed compressors having a single suction and discharge manifold; a tandem compressor with a single-speed compressor and a variable-capacity compressor; a variable speed scroll type compressor;
 a variable speed piston type compressor; an infinitely adjustable capacity screw type compressor with a sliding valve; or combinations thereof. 
 
     
     
         18 . The modular chiller of  claim 15  wherein the first module and the second module are installed as the single unit on an outdoor wall. 
     
     
         19 . The modular chiller of  claim 15  wherein the fluid side heat exchanger is positioned above the air side heat exchanger. 
     
     
         20 . The modular chiller of  claim 15  wherein the fluid side heat exchanger is positioned below the air side heat exchanger.