Panasonic CU-E18DBE Service Manual

Also see for CS-E15DD3EW: Service manual Service manual Operating instructions Operating instructions Operating instructions

Panasonic CU-E18DBE Service Manual Manual pdf 59 page image

At the best location, start installation according to Indoor-Outdoor Unit Installation Diagram.1. Fix the unit on concrete or rigid frame firmly andhorizontally by bolt nut. (ø10 mm).2. When installing at roof, please consider strong wind andearthquake. Please fasten the installation stand firmlywith bolt or nails.Connecting The Piping To Indoor UnitPlease make flare after inserting flare nut (locate at jointportion of tube assembly) onto the copper pipe.(In case of using long piping)Connect the piping• Align the center of piping and sufficiently tighten theflare nut with fingers.• Further tighten the flare nut with torque wrench inspecified torque as stated in the table.Connecting The Piping To Outdoor Unit1. Align the center of the pipings and sufficiently tightenthe flare nut with fingers.2. Finally, tighten the flare nut with torque wrench until thewrench clicks.• When tightening the flare nut with torque wrench,ensure the direction for tightening follows the arrowon the wrench.Piping size TorqueLiquid Side 1/4” 18 N.mGas Side 1/2” 55 N.m11.3. Outdoor Unit11.3.1. SELECTING THE INSTALLATION LOCATION• If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is notobstructed.• There should not be any animal or plant which could be affected by hot air discharged.• Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles.• Do not place any obstacles which may cause a short circuit of the discharged air.• If piping length is over 10m, additional refrigerant should be added as shown in the table.Model Piping size Max. Piping Length Max. Elevation Rated length Additional RefrigerantGas Liquid (A) (m) (B) (m) (m) (g/m)E18D, E21D 1/2” 1/4” 20 15 5 20E15D 1/2” 1/4” 20 15 7.5 2011.3.2. INSTALL THE OUTDOOR UNIT11.3.3. CONNECTING THE PIPINGCUTTING 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 avoid the metal powder entering the pipe.3. Please make flare after inserting the flare nut onto the copper pipes.59CS-E15DD3EW CU-E15DBE / CS-E18DD3EW CU-E18DBE