A system attachable to a refrigeration circuit includes a recovery pump attachable to the refrigeration circuit to remove refrigerant. The recovery pump includes a pump, an electric motor, a battery pack, and a recovery pump controller for controlling the operation of the electric motor. The recovery pump controller has a first communication interface. The system further includes an accessory attachable to the refrigeration circuit concurrently with the recovery pump. The accessory includes a sensor for detecting a characteristic value of the refrigeration circuit, and an accessory controller electrically connected with the sensor to receive a signal corresponding with the characteristic value of the refrigeration circuit. The accessory controller has a second communication interface to communicate the signal to the recovery pump controller via the first and second wireless interfaces. The recovery pump controller controls the operation of the electric motor based upon the signal received from the accessory.

A refrigerant amount management system manages an amount of refrigerant with which a plurality of refrigeration cycle apparatuses is filled. Each refrigeration cycle apparatus has a refrigerant circuit. The refrigerant amount management system includes an additional-filling-amount obtaining unit that obtains an additional filling amount of refrigerant with which a refrigeration cycle apparatus has been additionally filled after installation, a storage unit, and a useful-information creation unit. The storage unit stores apparatus information regarding the refrigeration cycle apparatus that has been additionally filled with refrigerant and the additional filling amount of the refrigeration cycle apparatus identified with the apparatus information in association with each other. The useful-information creation unit creates useful information to be used in management of the amount of refrigerant based on the additional filling amount of one of the refrigeration cycle apparatuses and the additional filling amount of another of the refrigeration cycle apparatuses.

An additional-filling-amount management system includes a mass correlation data obtaining unit, an additional-filling-amount determination unit, and a storage unit. The mass correlation data obtaining unit obtains mass correlation data correlating with a mass of a refrigerant container from which refrigerant is supplied to a refrigeration cycle apparatus that is additionally filled with refrigerant. The additional-filling-amount determination unit determines an additional filling amount based on the mass correlation data, the additional filling amount being an amount of refrigerant, from the refrigerant container, with which the refrigeration cycle apparatus has been additionally filled. The storage unit stores apparatus information regarding the refrigeration cycle apparatus for which additional filling with refrigerant is completed and the additional filling amount that is the amount of refrigerant with which the refrigeration cycle apparatus identified with the apparatus information has been filled, in association with each other.

There is provided a refrigerant charging method in which a foreign material and moisture are avoided from entering a heat source unit until a refrigeration cycle apparatus is configured. The refrigerant charging method is a method of charging a refrigerant to a refrigerant circuit in which a refrigeration cycle is to be performed by a circulating refrigerant, the refrigerant circuit being configured by connecting a second heat source unit and a utilization unit to each other. The refrigerant charging method includes charging a first refrigerant to the second heat source unit before connecting the second heat source unit to the utilization unit to configure the refrigerant circuit, and connecting the second heat source unit to the utilization unit and charging a second refrigerant that differs from the first refrigerant to the refrigerant circuit to obtain the circulating refrigerant that includes the second refrigerant and the first refrigerant that is charged in the second heat source unit.

A method for loading refrigerant fluid into an A/C system from an apparatus for recovering and regenerating refrigerant fluid includes a step of hydraulically connecting the apparatus with the A/C system by a high pressure pipe and a low pressure pipe and a step of loading refrigerant fluid present in a storage container of the apparatus into the A/C system.

A recycle information management system includes a communication device and a management device. The communication device transmits recycle information acquired from a recycle system via a network. The recycle system includes at least a recycling device that removes at least oil from the collected refrigerant to recycle the refrigerant. The management device includes a storage unit that stores the recycle information in association with a recycle system ID usable to identify the recycle system.

An air condition service machine for charging an air conditioner with refrigerant in a fast-charge mode, the fast-charge mode controlled based upon the changing weight rate of a refrigerant tank providing the supply of refrigerant to the air conditioner. The embodiment may also include a compensation mode to provide greater accuracy of the charge after completion of the fast-charge mode. The rate of refrigerant flow is monitored and an end time as opposed to weight target ends the charge.

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 unit and method of using same provide increased accuracy in determining respective amounts of refrigerant and oil recovered during service of an air conditioning system by taking into account the quantity of dissolved refrigerant in oil recovered from the system.

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.