Panasonic CU-C12DKU - Manual (Page 41)

10.6.3. CONNECTING THE PIPING
Connecting The Piping To Indoor Unit
Please make flare after inserting flare nut (locate at joint portion
of tube assembly) onto the copper pipe. (In case of using long
piping)
Connect the piping
• Align the center of piping and sufficiently tighten the flare
nut with fingers.
• Further tighten the flare nut with torque wrench in specified
torque as stated in the table.
MODEL Piping size (Torque)
Gas Liquid
CS-C9DK 3/8” (31.0 lbf.ft) 1/4” (13.3 lbf.ft)
CS-C12DK 1/2” (40.6 lbf.ft) 1/4” (13.3 lbf.ft)
Connecting The Piping To Outdoor Unit
Decide piping length and then cut by using pipe cutter. Remove
burrs from cut edge. Make flare after inserting the flare nut
(located at valve) onto the copper pipe.
Align center of piping to valves and then tighten with torque
wrench to the specified torque as stated in the table.
CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not
removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder
entering the pipe.
3. Please make flare after inserting the flare nut onto the
copper pipes.
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CS-C9DKU CU-C9DKU / CS-C12DKU CU-C12DKU