Panasonic S-12MY2U6 Installation Instructions Manual

Also see for S-12MY2U6: Operating instructions Installation instructions Installation instructions Operating instructions

Contents

155-3. Insulating the Refrigerant TubingTubing Insulation● Thermal insulation must be applied to all units tubing, includingdistribution joint (local supply).* For gas tubing, the insulation material must be heat resistantto 248°F (120°C) or above. For other tubing, it must be heatresistant to 176°F (80°C) or above.Insulation material thickness must be 13/32” (10 mm) orgreater.If the conditions inside the ceiling exceed DB 86°F (30°C) andRH 70%, increase the thickness of the gas tubing insulationmaterial by 1 step.Two tubes arranged togetherLiquid tubing Gas tubingInsulationFig. 5-7CAUTION If the exterior of the outdoor unit valves has been finished with a square duct covering, make sure youallow sufficient space to access the valves and to allow the panels to be attached and removed.Taping the flare nutsWind the white insulation tape around the flare nuts at the gas tube connections.Then cover up the tubing connections with the flare insulator, and fill the gap at the union with the supplied black insulation tape.Finally, fasten the insulator at both ends with the supplied vinyl clamps. (Fig. 5-8)Heat InsulationCAUTION Be sure to perform heat insulation on the drain, liquid and gas piping.Imperfection in heat insulation work leads to water leakage.(1) Use the heat insulation material for the refrigerant pipingwhich has an excellent heat-resistance (over 248°F (120°C)).(2) Precautions in high humidity circumstance.This air conditioner has been tested according to the “JISStandard Conditions with Mist” and have been confirmed thatthere are no faults. However, if it is operated for a long timein high humid atmosphere (dew point temperature: more than73.4°F (23°C)), water drops are liable to fall. In this case, addheat insulation material according to the following procedure:• Heat insulation material to be prepared… Adiabatic glasswool with thickness 13/32” (10 mm) to 25/32” (20 mm).• Stick glass wool on all air conditioners that are located inceiling atmosphere.• In addition to the normal heat insulation (thickness: morethan 5/16” (8 mm)) for refrigerant piping (gas piping: thickpiping) and drain piping, add a further of 13/32” (10 mm)to 1 – 3/16” (30 mm) thickness material.Wall seal● When the outdoor unit is installed on a higher position than theindoor unit, install the trap so as not to instill rain water into thewall by transmitting in piping.● Stuff the space among piping, the electric wire, and the drainhose with putty and seal the penetration wall hole. Make surethat rain water do not instill into the wall.* Put the incision at the trap part of the heat insulator (for waterdrain)Overlap with heatinsulator for piping.Heat insulator(Accessory)Heat insulator for piping(Local supply)Band(Accessory)IndoorunitFig. 5-8Drain pipePipe downIndoorunitPuttyPipeTrapIncisionFig. 5-9