Daikin FDYB30CV1M User & Installation Manual

Contents

Daikin FDYB30CV1M User & Installation Manual Manual pdf 13 page image

8ADDITIONAL CHARGEThe refrigerant is pre-charged in the outdoor unit. If the piping length is less than 5 m, additional charge after vacuuming is notnecessary. When the piping length is more than 5 m, use the table below.Additional Charge OperationThis operation must be done by using gas cylinder and a precise weighing machine obligatorily. The additional charge is top up intothe outdoor unit by suction valve via service port.• Remove the service valve plug.• Connect the low pressure manifold to the suction service port, center manifold to the cylinder tank and close the high pressuremanifold (see figure below).Purge all the flexible hose with refrigerant gas.• Start the air conditioner unit.• Open the gas cylinder and low pressure manifold valve.• When the required refrigerant quantity is pumped in the unit, close the low pressure manifold and the gas cylinder valve.• Disconnect the manometer and the gas cylinder. Place back the service port cap.Indoor FDYM30CV1M FDYM40CV1M FDYM60CV1M FDYM71CV1M FDYM80CV1MFDYB30CV1M FDYB40CV1M FDYB60CV1M FDYB71CV1MOutdoor RY30CV1M RY40CV1M RY60CV1M RY71CV1M RY80CV1MAdditional 23 23 22 56 56Charge (g/m)Additional ChargeIndoor FDYM90CV1M FDYM100CV1M FDYM1250CV1M FDYM140CV1M FDYM160CV1MFDYB90CV1M FDYB1250CV1M FDYB140CV1M FDYB160CV1MOutdoor RY90CV1M RY100CV1M RY125CV1MRY90CY1M RY125CY1M RY140CY1M RY160CY1MAdditional 55 57 56 56 106Charge (g/m)Refrigerant Gas TankFlexible HoseHigh Pressure GaugeManifoldLow SidePressure GaugeGas ValveRefrigerant Piping Indoor UnitOutdoor UnitLiquid ValveCheck Refrigerant LeakCheck with refrigerant detector whether there is a leak on the flare type connection of the indoor unit and outdoor unit.Hints: After operation for sometime, check if there is oil traces, there is a leak.Heat Pump UnitE.g.FDYM30CV1M & RY30CV1M with 12m piping length, additional piping length is 4.4m. Thus,Additional charge = 4.4[m] x 23[g/m]= 101.2 [g]