What level of quality control do the units undergo prior to despatch?
Colt have an active manufacturing policy of zero defects. This means that every unit is tested as follows: – A pre-leak test with pure helium sniffer equipment (helium has much smaller molecules than nitrogen used by many manufacturers and for site fabrication of large VRF systems. – A double pressure test at 38 bar dry nitrogen. – Check that the unit vacuum is held at least for 8 hours at less than 1 micron. – A leak test at 0.8 grams annually with refrigerant leak testing equipment. – The units undergo a full running test for a minimum of 72 min, under surveillance in both the heating and cooling modes. – Each unit undergoes a full electric and PCB software self test wiring procedure. – Colt also observes the full quality control measures as specified in ISO 9001 and QC procedures.
Colt have an active manufacturing policy of zero defects. This means that every unit is tested as follows: – A pre-leak test with pure helium sniffer equipment (helium has much smaller molecules than nitrogen used by many manufacturers and for site fabrication of large VRF systems. – A double pressure test at 38 bar dry nitrogen. – Check that the unit vacuum is held at least for 8 hours at less than 1 micron. – A leak test at 0.8 grams annually with refrigerant leak testing equipment. – The units undergo a full running test for a minimum of30 minutes, under surveillance in both the heating and cooling modes. – Each unit undergoes a full electric and PCB software self test wiring procedure. – Colt also observes the full quality control measures as specified in ISO 9001 and QC procedures.
