The Caresaver Universal is designed specifically for handling hydrocarbon refrigerants including R600a, R290, R32 and the newly adopted automotive HC R1234yf. The unit was originally developed for Calor (now BOC) back in 1995 for recovering CARE refrigerants. The Caresaver Universal is a simple to use, portable unit suitable for use in all refrigerant transfer applications in the workshop or on site.
The Caresaver Universal is semi-automatic and is suitable for operation with all common CFC, HCFC, HFC and HC refrigerants used in domestic, commercial and automotive equipment. The heat exchanger and air cooled condenser make the units particularly suitable for applications where the refrigerant can only be recovered as vapour, for example through access valves on packaged air conditioning equipment and piercing pliers with domestic equipment.
The low pressure override switch enables the units to operate intermittently in a vacuum as required on refrigerant recovery from domestic cabinets. The units can recover refrigerant in either liquid or vapour phase and changeover is automatic. The heat ex-changer oil separator has a drain facility to remove the oil separated from recovered liquid. A self-discharge feature is incorporated in the units to avoid mixing of refrigerants.
The units are designed for the service environment and provided with practical features including a compound pressure gauge to monitor the pressure in the system, a discharge gauge to monitor the pressure in the recovery cylinder and High and Low Pressure illuminated indicators. The robust painted steel case is ergonomically designed to protect the fascia and the central carrying handle provides storage for the 5m mains lead. Comprehensive instructions included with the unit illustrate simple push-pull and pass through techniques and safety procedures.
When recovering hydrocarbon refrigerants it is recommended to use the RDA Care-Air fan ventilation module. Good ventilation in the working area will ensure that any
vapour from a leak or release will be rapidly dispersed.
Safety Procedure for the work area where HC systems are being serviced:
The area must be well ventilated
There must be no source of ignition within 3m of the system
The area must be monitored with a hydrocarbon detector
Recommended Procedure for Servicing HC Refrigerant Equipment:
Plug in the RDA Care-Air Fan Module 3m from the working area and position at floor level.
Plug in the RDA Caresaver Universal 3m from the working area and recover the hydrocarbon refrigerant.
When the low-pressure lamp has illuminated switch the unit to low pressure override and allow to run for 2 minutes.
Pressurise the system with OFN (Oxygen Free Nitrogen) to just above atmospheric pressure.
Using a HC sensor check that no hydrocarbon refrigerant is in the air before lighting the brazing torch.
Un-braze the connections and complete the service operation.
For more information and for details on our other refrigerant handling products and services please visit:
http://www.rda-eng.com