3: Getting Started
19
4. Push the tube into the fitting until it is properly seated. The tube will go
approximately ¾ inch (19 mm) into the fitting.
5. Tighten the tube fitting nut hand tight and then, using a 7/16-inch wrench,
tighten it at least ¾ turn more.
6. Close the service valve in the cabinet and then slowly open the shutoff valve
on the service valve. Test all fittings for leakage. Tighten the tube nut slightly if
needed.
Tube fitting nut
Tube fitting
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