Daikin RXYQ72PAYD Installation Manual

Also see for RXYQ108PATJ: Installation manual

Contents

13 English• When two wires are connected to a single terminal, connect them sothat the rear sides of the crimp contacts face each other. Also, makesure the thinner wire is on top, securing the two wires simultaneouslyto the resin hook using the included clamp (1).7-6 Procedure for Wiring Inside Units• Referring to figure 24, secure and wire the power and transmissionwiring using the included clamp (1), (2), and (3).• Wire so that the ground wiring does not come into contact with thecompressor lead wiring.If they touch, this may have an adverse effect on other devices.• The transmission wiring must be at least 2 in. away from the power wiring.• Make sure all wiring do not contact to the pipes (hatching parts in thefigure 24).(Refer to figure 24)1. Retain with accessory clamp (3).2. Electric conduit3. When routing out the power/ground wires from the left side.4. When routing out the transmission wiring from the openingfor piping.5. When routing out the power/ground wires from the front.6. Clear over 2 in..7. When routing out the transmission wiring from the knockouthole.8. Retain to the back of the column support with the accessoryclamp (2).9. When routing out the power/ground wires from the right side.10. Power wiring11. Transmission wiring12. Ground wirePrecautions when knocking out knockout holes• To punch out a knockout hole, hit it with a hammer.• Open an appropriate hole as needed.• After knocking out the holes, trim off the burr, then we recommendyou to paint the edges and areas around the edges using the repairpaint to prevent rusting.• Power line : Open a knockout hole as shown at left and connectit using a conduit.• Transmission line : Connect it using a conduit in the knockout holeon the right.NOTE• After wiring work is completed, check to make sure there are no looseconnections among the electrical parts in the EL.COMPO.BOX.8. AIR TIGHT TEST AND VACUUM DRYING• After finished piping work, carry out air tight test and vacuum drying.NOTE• Always use nitrogen gas for the airtightness test.• Absolutely do not open the shutoff valve until the main power ciruitinsulation measurement has been completed. (measuring after theshutoff valve is opened will cause the insulation value to drop.)• Referring to figure 25, connect a nitrogen tank, refrigerant tank, anda vacuum pump to the outside unit.The refrigerant tank and the charge hose connection to refrigerantcharge port or the valve A in figure 25 are needed in “11. ADDI-TIONAL REFRIGERANT CHARGE AND CHECK OPERATION”.(Refer to figure 25)1. Gauge manifold2. Nitrogen3. Measuring device4. R410A tank (with siphon)5. Vacuum pump6. Charge hose7. High side equalizer pipe shutoff valve8. Gas pipe shutoff valve9. Low side equalizer pipe shutoff valve10. Liquid pipe shutoff valve11. Refrigerant charge port12. Valve A13. Valve B14. Valve C15. Outside unit16. Indoor unit17. Shutoff valve18. Service port19. Field piping20. Gas flowNOTE• The air-tightness test andvacuum drying should bedone using the serviceports of equalizer pipe, gaspipe and liquid pipe shutoffvalve.See the [R410A] Labelattached to the front plateof the outside unit fordetails on the location ofthe service port (see figureat right)• See [Shutoff valve operation procedure] in “11-1 Before work-ing” for details on handling the shutoff valve.• The refrigerant charge port is connected to unit pipe.When shipped, the unit contains the refrigerant, so use caution whenattaching the charge hose.Terminalblock Crip styleterminal Wire : narrowWire : thickResin hookBurr Knockout holeLeft side Right sideConduit(field supply)Lock nut(field supply)Conduit mounting plate(accessory)Gauge manifoldCharge hosevalve• To prevent entry of any impurities and insuresufficient pressure resistance, always use thespecial tools dedicated for R410A.• Use charge hose that have pushing stick forconnecting to service port of shutoff valves orrefrigerant charge port.Vacuum pump• The vacuum pump for vacuum drying shouldbe able to lower the pressure to –14.6 psi.• Take care the pump oil never flow backwardinto the refrigerant pipe during the pump stops.[R410A] Label