Daikin LX10F11B3 Service Manual

Contents

Daikin LX10F11B3 Service Manual Manual pdf 115 page image

4-224.8.12 Solenoid Valve4 Solenoid Valves using in this unit use a commoncoil and body.Name Symbol Body CoilLiquid solenoid Valve LSVVPV-803DQNEV-MOAB518CEconomizer solenoid Valve ESVHot gas solenoid Valve HSVReheat coil solenoid Valve RSV(1) Replacing the coilRemove the lead wire connector from the insideof the control box, and cut and recover the cableband.Remove the hexagonal head bolt on the top ofthe coil and remove the coil.Replace the coil with a new one and restorethe hexagonal head bolt, the cable band andconnector on the original position.When reassembling the coil, the tighteningtorque should be 1.2 N m (12.2 kg cm).Hexagon head boltLead wireValve body Coil(2) Replacing the valve bodyRemove the hexagonal head bolt on the top ofthe coil remove the coil.Remove the hexagonal head bolt of the mountingplate, and cut the two pipes at the side of thevalve body.Disconnect the remaining pipes at the brazedjoint sections.Solder in new valve body while keeping thetemperature of the valve body below 120(248 F) by cooling.Install the coil and the hexagonal head bolt ofthe mounting plate and the connector into theiroriginal position.Hexagon head bolt for fixing plate Hexagon head boltCoilValve bodymounting plate4.8.13 DryerThe dryer absorbs moisture from the refrigerant.It also works as a filter to remove particles in therefrigerant system. Replace the dryer if it does notabsorb moisture, is blocked, or if the system hasbeen opened to the atmosphere. When installing thenew dryer, follow the arrow and do not make anymistake about the installation direction of the dryer.(1) Replacement procedureConduct the automatic pumpdown to collectthe refrigerant in the liquid receiver.Refer to paragraph 4.2 for the automatic pumpdown.Then, quickly replace the dryer with a new oneafter loosening the flare nuts on the inlet andoutlet side of the dryer.After completing of the replacement of the dryer,be sure to conduct refrigerant leakage test toconfirm that no refrigerant leakage is occurring.Check on the green color of the sight glass aftersystem start up.Apply silicon sealant to the dryer body includingthe flare nuts on the inlet and outlet sides.OutletflarenutInletflarenutFully apply silicon sealant tothe dryer body including theflare nuts on the inlet andoutlet sides.When put under lowtemperature and pressure bysome operation conditions,and might have the threadsdamaged by frozen dewdrops.may become rusty as aresult of coating peel-off atwork using a spanner.4.8.14 Fusible PlugReceiverFusible plugCapBodyFusible plugReplacement of fusible plugRefrigerant system pressure rise abnormallyfusible plug will release pressure.If the fusible plug is activated, the fusible alloymelts and refrigerant blow out (Melting point:95 to 100 ).For replacement, - shall be replaced.https://daikin-p.ru