Panasonic CS-C18GKV Service Manual

Contents

Panasonic CS-C18GKV Service Manual Manual pdf 25 page image

2511.2.2. CONNECTING THE PIPINGConnecting The Piping To Indoor UnitPlease make flare after inserting flare nut (locate at joint portionof 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 nutwith fingers.• Further tighten the flare nut with torque wrench in specifiedtorque as stated in the table.Connect The Piping to Outdoor UnitDecide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locatedat 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 Piping1. 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 avoidthe metal powder entering the pipe.3. Please make flare after inserting the flare nut onto the copper pipes.11.2.3. AIR PURGING OF THE PIPINGS AND INDOOR UNIT1) Checking a gas leakage1. Remove the service-port cap from both 3-way valves.2. Connect the Manifold gauge set to the service port of Liq-uid side 3-way valve.3. Connect the Charging Cylinder to the Manifold gauge setand open the valve of the Cylinder.4. Open the low pressure side valve of the Manifold gaugefor approx. 10 seconds and then close.5. Check gas-leakage of the connecting portion of pipingswith the gas-leak detector.MODEL Piping size (Torque)Gas LiquidC18GK 1/2” (55 N•m) 1/4” (18 N•m)C24GK 5/8” (65 N•m) 1/4” (18 N•m)