GZ Industrial Supplies Nigeria is the distributor of Harp Brand of Refrigerants in Nigeria. Harp Refrigerant Gas 134a is a zero ozone depletion (ODP) hydrofluorocarbon (HFC) refrigerant. It is used on its own as a pure refrigerant and as a component in a large number of refrigerant blends. It is widely used in new equipment that would have previously used CFC R12 and can with specific modifications be retrofitted into exiting R12 equipment.
Harp Refrigerant Gas 134a applications include automotive air conditioning, chillers, medium temperature commercial refrigeration, domestic refrigeration appliances and transport refrigeration.
PROPERTIES AND PERFORMANCE
Harp Refrigerant Gas 134a is designed to meet the needs of many air conditioning and medium temperature refrigeration systems. Harp® 134a is a single component refrigerant, rated A1 by ASHRAE (lowest levels of toxicity and flammability), has zero ozone depletion potential and a Global Warming Potential of 1430.
Charging with Harp Refrigerant Gas 134a can be done either as a vapour or a liquid. End-users should check with the equipment manufacturer’s guidelines for specific charging instructions.
When retrofitting R12 systems to Harp Refrigerant Gas 134a, it is necessary to replace the existing lubricant with POE oil, except in some automotive retrofit applications, which require PAG oil. In most cases, the mineral oil or alkylbenzene oil levels must be reduced below 5% of the new POE charge. Check with OEMs for any specific recommendations regarding viscosity grades or procedures. Remove as much of the existing lubricant as possible, add POE, and run the system on R12 for some time. When the residual oil concentration is appropriate, remove R12, replace the filter-drier, and charge Harp® 134a.
Whenever retrofitting air conditioning or refrigeration systems, compatibility of system materials must always be taken into consideration. Items such as elastomers, hoses, and filter-driers respond differently to different refrigerants and oils. For these reasons, before performing any refrigerant retrofit, Harp International recommends contacting the OEM for specific recommendations.
PROPERTIES AND PERFORMANCE
Harp Refrigerant Gas 134a is designed to meet the needs of many air conditioning and medium temperature refrigeration systems. Harp® 134a is a single component refrigerant, rated A1 by ASHRAE (lowest levels of toxicity and flammability). Harp® 134a has zero ozone depletion potential and a Global Warming Potential of 1430.
Chemical formula CH2FCF3
Molecular weight 102.0
Boiling point at 1 atmosphere -26.08°C
Critical temperature 101°C
Critical pressure 40.7 bar absolute
Refrigerants SIZE : 12 OZ. Can