Code of Practice to eliminate halocarbon emissions from refrigeration and air conditioning systems: chapter 6

6.0 Servicing

6.1 Preventive Maintenance

A regular preventive maintenance program is essential to the reliability of mobile cooling systems. It could be integrated into the vehicle maintenance safety inspection program. The maintenance program can be carried out using the manufacturer's service check sheets and service procedures. The following should be considered in preparing preventive maintenance programs for mobile cooling systems:

6.2 Leak Testing

Leak testing for mobile use, using the refrigerant as the test gas in accordance with internationally recognized standards, is acceptable provided that:

Original equipment manufacturers have to use fluorescent dyes or other proven technology in new vehicles for leak testing.

6.3 Conversion of a System to an Alternate Refrigerant (Retrofit)

The principles and guidelines regarding the conversion of a cooling system to a system using an alternate refrigerant, found in Section 4.13 - Conversion of a System to an Alternate Refrigerant (Retrofit), are applicable to mobile cooling systems. In addition, place the label on the vehicle identifying which refrigerant is contained in the system and indicate whether the system contains an ultraviolet dye.

Hydrocarbon refrigerant do-it-yourself kits are now marketed as a replacement for refrigerant air conditioning systems. Note that under the Federal Halocarbon Regulations, 2003 and most provincial and territorial ozone-depleting substances regulations, the removal of halocarbon refrigerants requires a qualified technician.

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