Daikin FXDQ15P7VEB Installation Manual

Also see for FXDQ15P7VEB: Operation manual

Contents

Daikin FXDQ15P7VEB Installation Manual Manual pdf 7 page image

English 55. INDOOR UNIT INSTALLATION〈〈As for the parts to be used for installation work, be sure touse the provided accessories and specified parts desig-nated by our company.〉〉(1) Install the indoor unit temporarily.• Attach the hanger bracket to the suspension bolt. Be sureto fix it securely by using a nut and washer from the upperand lower sides of the hanger bracket. (Refer to Fig. 5)[ PRECAUTION ]Since the unit uses a plastic drain pan, prevent weldingspatter and other foreign substances from the air outletduring installation.(2) Adjust the height of the unit.(3) Check the unit is horizontally level.CAUTION• Make sure the unit is installed level using a level or aplastic tube filled with water. In using a plastic tubeinstead of a level, adjust the top surface of the unit to thesurface of the water at both ends of the plastic tube andadjust the unit horizontally. (One thing to watch out for inparticular is if the unit is installed so that the slope is notin the direction of the drain piping, this might cause leak-ing.)(4) Tighten the upper nut.6. REFRIGERANT PIPING WORK〈For refrigerant piping of outdoor units, see the installationmanual attached to the outdoor unit.〉〈Execute heat insulation work completely on both sides ofthe gas piping and the liquid piping. Otherwise, a waterleakage can result sometimes.Use insulation that can withstand temperatures of at least120°C. Reinforce the insulation on the refrigerant pipingaccording to the installation environment. If the tempera-ture above the ceiling might reach 30°C or the humidityRH80%. Condensation may form on the surface of the insu-lation.〉CAUTIONFollow the points at below.• Use a pipe cutter and flare suitable for the type of refrigerant.• Apply ester oil or ether oil to the flare section when using aflare connection.• Only use the flare nuts included with the unit. Using differentflare nuts may cause the refrigerant to leak.• To prevent dust, moisture or other foreign matter from infil-trating the piping, either pinch the end or cover it with tape.• Do not allow anything other than the designated refrigerant toget mixed into the refrigerant circuit, such as air, etc. If anyrefrigerant gas leaks while working on the unit, ventilate theroom thoroughly right away.(1) Connect the piping.• The outdoor unit is charged with refrigerant.• Be sure to use both a spanner and torque wrench together,as shown in the drawing, when connecting or disconnectingpipes to/from the unit. (Refer to Fig. 6)• Refer to the Table 1 for the dimensions of flare nut spaces.• Apply ester oil or ether oil to flare section (both inside andout) when using flare nut connections and then turn 3 or 4times by hand. (Refer to Fig. 7)In case of bottom side In case of back side(3)FilterForceForceMain unitAttach the filter to themain unit while pushingdown on the bends.Part to be procuredin the field[ Securing the hanger bracket ] [ How to secure washers ]Washer forhanging bracket (8)HangerbracketTighten(double nut)Fig. 5Insert below washerWasher fixing plate (11)(accessory)(accessory)Vinyl tubeLevelTorque wrenchSpannerEster oil or ether oilPiping unionFlare nutFig. 6 Fig. 7