Refrigerant Recovery and Recycling System with Serviceable Debris Filter

A manifold assembly of a refrigerant recovery, recycling, and recharging system, the manifold assembly defining a number of passages comprising:

• a first passage characterized by a first head terminus in fluid communication with a low-side inlet port, fluid communication with a first-passage pressure transducer, and a first tail terminus;
• a second passage characterized by a second head terminus in fluid communication with a high-side inlet port, fluid communication with a second-passage pressure transducer, and a second tail terminus;
• a third passage characterized by a third head terminus in fluid communication with the first tail terminus, a low-side inlet debris filter and a low-side filter-path inlet solenoid the low-side inlet debris filter and the low-side filter-path inlet solenoid disposed between the third head terminus and a third tail terminus, the low-side filter path inlet solenoid configured to prevent fluid communication between the third head terminus and third tail terminus when closed, and a third-passage pressure transducer in fluid communication with the third tail terminus;
• a fourth passage characterized by a fourth head terminus in fluid communication with the first tail terminus, and a low-side bypass inlet solenoid disposed between the fourth head terminus and a fourth tail terminus in fluid communication with the third tail terminus, the low-side bypass inlet solenoid configured to prevent fluid communication between the fourth head terminus and fourth tail terminus when closed;
• a fifth passage characterized by a fifth head terminus in fluid communication with the second tail terminus, a high-side inlet debris filter and a high-side filter-path inlet solenoid, the high-side inlet debris filter and high-side filter-path inlet solenoid disposed between the fifth head terminus and a fifth tail terminus in fluid communication with the third tail terminus, the high-side filter-path inlet solenoid configured to prevent fluid communication between the fifth head terminus and fifth tail terminus when closed;
• a sixth passage characterized by a sixth head terminus in fluid communication with the second tail terminus and high-side bypass inlet solenoid disposed between the sixth head terminus and a sixth tail terminus in fluid communication with the third tail terminus, the high-side bypass inlet solenoid configured to prevent fluid communication between the sixth head terminus and sixth tail terminus when closed;
• a seventh passage characterized by a seventh head terminus in fluid communication with the third tail terminus, a recover solenoid disposed between the seventh head terminus and a recover check valve configured to permit refrigerant to flow from the recover solenoid to a seventh tail terminus, the seventh tail terminus in fluid communication with an inlet of an accumulator, the recover solenoid configured to prevent fluid communication between the seventh head terminus and seventh tail terminus when closed;
• an eighth passage characterized by an eighth head terminus in fluid communication with a vapor outlet of the accumulator, and a filter/drier disposed between the eighth head terminus and an eighth tail terminus in fluid communication with a compressor inlet port;
• a ninth passage characterized by a ninth head terminus in fluid communication with a compressor return port, a ninth tail terminus in fluid communication with an inlet port ofa compressor-oil separator, and a high-pressure cutout switch disposed between the ninth head terminus and the ninth tail terminus;
• a tenth passage characterized by a tenth head terminus in fluid communication with a refrigerant outlet port of a compressor-oil separator and a tenth tail terminus in fluid communication with a vapor outlet port in fluid communication with a storage tank;
• an eleventh passage characterized by an eleventh head terminus in fluid communication with a tank charge port, a low-side charge solenoid, and a low-side charge check valve disposed between the low-side charge solenoid and an eleventh tail terminus in fluid communication with the first tail terminus, the low-side charge check valve configured to permit flow of refrigerant from the low-side charge solenoid to the eleventh tail terminus, the low-side charge solenoid configured to prevent fluid communication between the eleventh head terminus and eleventh tail terminus when closed;
• and
• a twelfth passage characterized by a twelfth head terminus in fluid communication with the tank charge port, a high-side charge solenoid, a high-side charge check valve disposed between the high-side charge solenoid and a twelfth tail terminus in fluid communication with the second tail terminus, the high-side charge check valve configured to permit flow of refrigerant from the high-side charge solenoid to the twelfth tail terminus, the high-side charge solenoid configured to prevent fluid communication between the twelfth head terminus and twelfth tail terminus when closed.