Leak detection dye delivery system

A leak detection dye delivery system comprising:

• a canister containing a leak detection composition including a refrigerant including 1,1,1,2-tetrafluoroethane, a lubricant including a polyol esters and a dye concentrate comprising a fluorescent naphthalimide dye,
• wherein the leak detection dye composition contains less than 50 percent by weight of the refrigerant.

A method of manufacturing a leak detection dye delivery system comprising:

• loading a canister with a lubricant including a polyol ester, and a dye concentrate comprising a fluorescent naphthalimide dye, and
• charging the canister with a refrigerant including 1,1,1,2-tetrafluoroethane,
• wherein after loading, the canister includes a leak detection dye composition containing less than 50 percent be weight of the refrigerant.

A method of introducing a leak detection system into a climate control system comprising:

• discharging into the climate control system a leak detection composition including a refrigerant including 1,1,1,2-tetrafluoroethane, a lubricant including a polyol ester, and a dye concentrate comprising a fluorescent naphthalimide dye, the leak detection composition containing less than 50 percent by weight of the refrigerant.

A leak detection dye delivery system comprising:

• a canister having a volume of less than 5 ounces, the canister containing a first weight amount of a dye concentrate including a fluorescent naphthalimide dye, a second weight amount of a lubricant including a polyol ester, and a third amount of a refrigerant including 1,1,1,2-tetrafluoroethane, the first amount and the second amount, together, being greater than the third amount.