#608 Exam

Tech Tips:

Is R22 legal to use?
By:Adam MufichI've recently seen heated debates in different HVAC groups about whether it is okay to recharge a residential HVAC system with R22 without locating and repairing the leaks. I've had residential customers call me and complain about other companies telling them they must replace their system because it leaks. They've also stated that it […]
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