Single Zone Outdoor Condenser Installation Manual
DURASTAR.COM
18
PIPE EXTENSION BEYOND FLARE FORM
Outer Diameter of Pipe
Inches (mm)
"A" Minimum Extension
Inches (mm)
"A" Maximum Extension
Inches (mm)
0.25" (6.35mm) 0.0275" (0.7mm) 0.05" (1.3mm)
0.375" (9.52mm) 0.04" (1.0mm) 0.063" (1.6mm)
0.5" (12.7mm) 0.04" (1.0mm) 0.07" (1.8mm)
0.63" (16mm) 0.078" (2.0mm) 0.086" (2.2mm)
0.75" (19mm) 0.078" (2.0mm) 0.094" (2.4mm)
Flare form
Pipe
A
6. Place flaring tool onto the form.
7. Turn the handle of the flaring tool clockwise until the pipe is fully flared.
8. Remove the flaring tool and flare form, then inspect the pipe for cracks and even flaring.
STEP 4: CONNECT PIPES
When connecting refrigerant pipes, be careful not to use excessive torque or to deform the piping in
any way. You should first connect the low-pressure pipe, then the high-pressure pipe.
When bending connective refrigerant piping, the minimum bending radius is 4 inches (10cm).
≥4” (10cm)
Radius
CONNECTING PIPING TO INDOOR UNIT
1. Align the center of the two pipes that you will connect.
Indoor unit tubing Flare nut Pipe