Daikin RZQG71L9V1B Installer's Reference Manual

Also see for RZQG100L8Y1B: Service manual Installation manual Installation manual

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Daikin RZQG71L9V1B Installer's Reference Manual Manual pdf 14 page image

6 InstallationInstaller reference guide14RZQG71~140L_V1+Y1 + RZQSG100~140L_V1+Y1Split system air conditioners4P385522-1A – 2016.10Drain holes (dimensions in mm)ABBCDE160 1606203661262416595285279260161(345~355)A Discharge sideB Distance between anchor pointsC Bottom frameD Drain holesE Knockout hole for snowSnowIn regions with snowfall, snow might build up and freeze between theheat exchanger and the external plate. This might decrease theoperating efficiency. To prevent this:1 Drill (a, 4×) and remove the knockout hole (b).ba b4× Ø6 mm2 Remove the burrs, and paint the edges and areas around theedges using repair paint to prevent rusting.6.3.6 To prevent the outdoor unit from fallingoverIn case the unit is installed in places where strong wind can tilt theunit, take following measure:1 Prepare 2 cables as indicated in the following illustration (fieldsupply).2 Place the 2 cables over the outdoor unit.3 Insert a rubber sheet between the cables and the outdoor unitto prevent the cable from scratching the paint (field supply).4 Attach the cable’s ends. Tighten those ends.6.4 Connecting the refrigerant piping6.4.1 About connecting the refrigerant pipingBefore connecting the refrigerant pipingMake sure the outdoor and indoor unit are mounted.Typical workflowConnecting the refrigerant piping involves:▪ Connecting the refrigerant piping to the outdoor unit▪ Connecting the refrigerant piping to the indoor unit▪ Installing oil traps▪ Insulating the refrigerant piping▪ Keeping in mind the guidelines for:▪ Pipe bending▪ Flaring pipe ends▪ Brazing▪ Using the stop valves6.4.2 Precautions when connecting therefrigerant pipingINFORMATIONAlso read the precautions and requirements in thefollowing chapters:▪ General safety precautions▪ PreparationDANGER: RISK OF BURNINGCAUTION▪ Do NOT use mineral oil on flared part.▪ NEVER install a drier to this R410A unit to guaranteeits lifetime. The drying material may dissolve anddamage the system.NOTICETake the following precautions on refrigerant piping intoaccount:▪ Avoid anything but the designated refrigerant to getmixed into the refrigerant cycle (e.g. air).▪ Only use R410A when adding refrigerant.▪ Only use installation tools (e.g. manifold gauge set) thatare exclusively used for R410A installations towithstand the pressure and to prevent foreign materials(e.g. mineral oils and moisture) from mixing into thesystem.▪ Install the piping so that the flare is NOT subjected tomechanical stress▪ Protect the piping as described in the following table toprevent dirt, liquid or dust from entering the piping.▪ Use caution when passing copper tubes through walls(see figure below).Unit Installation period Protection methodOutdoor unit >1 month Pinch the pipe<1 month Pinch or tape the pipeIndoor unit Regardless of theperiodINFORMATIONDo NOT open the refrigerant stop valve before checkingthe refrigerant piping. When you need to charge additionalrefrigerant it is recommended to open the refrigerant stopvalve after charging.