An air conditioning recharging machine includes a pair of flexible hoses connected to the air-conditioning system and a recharging assembly to supply a refrigerant fluid to the air-conditioning system through the flexible hoses. The machine has a discharging assembly to discharge the refrigerant fluid from the air-conditioning system and a valve distributor body, which is provided with a series of inlets/outlets hydraulically connected to the flexible hoses, to the recharging assembly and to the discharging assembly. The valve distributor body is in the form of a monobloc made of rigid material which is provided with straight inner through-ducts, each of which extends in the monobloc so as to have the two axial ends which are arranged on two respective faces of said monobloc opposite one to the other, and are each closed by a respective solenoid valve coupled to the face itself.

A sensor device, system, and method for monitoring the internal pressure and temperature of a refrigerant tank during a recovery operation to control a purge operation of the tank based on the conditions thereof during the recovery operation. The sensor device, system, and method further utilize an external temperature sensor, the external temperature sensor operable to indicate that it is properly positioned on the surface of the tank.

A temperature control medium processing apparatus configured to collect a temperature control medium from a module using the temperature control medium or refill the module with the temperature control medium includes a tank configured to store the temperature control medium therein; a first inlet path which is connected to a first inlet opening of the tank, and through which the temperature control medium is introduced; an inlet connector configured to connect the first inlet path and a path from the module; an outlet path which is connected to an outlet opening of the tank, and through which the temperature control medium is flown out; an outlet connector configured to connect the outlet path and a path to the module; and a pump provided at the outlet path, and configured to force the temperature control medium stored in the tank to be flown out.

A temperature control medium processing apparatus configured to collect a temperature control medium from a module using the temperature control medium or refill the module with the temperature control medium includes a tank configured to store the temperature control medium therein; a first inlet path which is connected to a first inlet opening of the tank, and through which the temperature control medium is introduced; an inlet connector configured to connect the first inlet path and a path from the module; an outlet path which is connected to an outlet opening of the tank, and through which the temperature control medium is flown out; an outlet connector configured to connect the outlet path and a path to the module; and a pump provided at the outlet path, and configured to force the temperature control medium stored in the tank to be flown out.

A portable apparatus for recharging liquid refrigerant, such as a glycol/water mixture, in a refrigeration circuit of a chiller system includes a frame, a reservoir containing the liquid refrigerant mounted to the frame, and a recharging circuit mounted to the frame. The recharging circuit is fluidly coupled to the reservoir and is configured to receive the liquid refrigerant from the reservoir. The recharging circuit comprises a filter configured to remove particulate matter from the liquid refrigerant, an air bubble separator configured to remove air bubbles from the liquid refrigerant, a pump, a flow regulating valve, and at least one outlet port configured to be fluidly coupled to the refrigeration circuit via a hose. The pump is configured to pump the liquid refrigerant from the reservoir through the filter and the air bubble separator, and into the refrigeration circuit via the hose.

A dual tank refrigerant delivery apparatus including a refrigerant tank housing a first storage tank, a second storage tank, and a refrigerant delivery system positioned therein, the refrigerant delivery system adapted to supply a first refrigerant to the first storage tank and a second refrigerant to the second storage tank, a tank recess on the housing for receiving a refrigerant resupply tank, a first refrigerant hose for connecting to a first refrigerant resupply tank, a second refrigerant hose for connecting to a second refrigerant resupply tank, wherein the first refrigerant is supplied from the first refrigerant resupply tank through the first refrigerant hose and refrigerant delivery system to the first storage tank, and wherein the second refrigerant is supplied from the second refrigerant resupply tank through the second refrigerant hose and refrigerant delivery system to the second storage tank.

An apparatus including a first storage tank, a frame positioned at least partially beneath the first storage tank, a first lever having a first end and a second end, and the first lever is pivotally mounted to the frame; and a first scale system positioned beneath the first storage tank, wherein in a first position, the first storage tank exerts a force against the first scale system, and wherein in a second position, the second end of the lever exerts a force on a bottom surface of the first storage tank such that the first storage tank is positioned above, and out of contact with, the first scale system, when the first storage tank is in the second position.

An air conditioning service system includes an oil receptacle configured to store an oil, a solenoid valve configured to selectively allow the oil to flow from the oil receptacle into an oil injection line, a coupling port in fluid communication with the oil receptacle through the oil injection line when the solenoid valve is in an open condition, and a flow control valve with an inlet and an outlet. The inlet is in fluid communication with the oil receptacle when the solenoid valve is in the open condition, and the outlet in fluid communication with the oil injection line when the solenoid valve is in the open condition. The flow control valve is configured such that, for a given pressure difference between the inlet and the outlet, the oil flows from through the flow control valve at a flow rate that is independent of a viscosity of the oil.

Apparatuses, methods, and systems for adjusting scale(s) of a refrigerant recovery system (RRS) are described. The RRS can determine pressure and weight measurements of content within a refrigerant storage tank. The RRS can determine weight measurements of content within oil storage containers. The RRS can compare the pressure and weight measurements to thresholds to determine whether the scale(s) require adjusting, whether the RRS should be locked to prevent further use of the RRS until after servicing of the RRS, or whether additional functions of an operating state of the RRS should be performed. The RRS can comprise a processor to automatically adjust the scales, determine the pressure and weight measurements, and compare pressure and weight measurements to the thresholds. Locking the RRS can prevent the RRS from recovering refrigerant from a cooling system, such as an air conditioning system in a vehicle.

A temperature control medium processing apparatus configured to collect a temperature control medium from a module using the temperature control medium or refill the module with the temperature control medium includes a tank configured to store the temperature control medium therein; a first inlet path which is connected to a first inlet opening of the tank, and through which the temperature control medium is introduced; an inlet connector configured to connect the first inlet path and a path from the module; an outlet path which is connected to an outlet opening of the tank, and through which the temperature control medium flows out; an outlet connector configured to connect the outlet path and a path to the module; and a pump provided at the outlet path, and configured to force the temperature control medium stored in the tank to flow out.