Daikin FXFQ20AVEB Installation And Operation Manual

Also see for FXFQ100AVEB: Installation and operation manual

Contents

Daikin FXFQ20AVEB Installation And Operation Manual Manual pdf 7 page image

Installation and operation manual4 Installation is possible when opening dimensions are asfollows.When installing the unit within the frame for fixing ceilingmaterials. (See figure 4)2. Make the ceiling opening needed for installation whereapplicable. (For existing ceilings.)• Refer to the paper pattern for installation for the ceilingopening dimensions.• Create the ceiling opening required for installation. From theside of the opening to the casing outlet, implement therefrigerant and drain piping and wiring for remote controller(unnecessary for wireless type) and indoor-outdoor unit casingoutlet. Refer to each piping or wiring section.• After making an opening in the ceiling, it may be necessary toreinforce ceiling beams to keep the ceiling level and to preventit from vibrating. Consult the builder for details.3. Install the suspension bolts. (use either a W3/8 or M10size bolt.)Use anchors for existing ceilings, and a sunken insert, sunkenanchors or other field supplied parts for new ceilings to reinforcethe ceiling in order to bear the weight of the unit. Adjust clearancefrom the ceiling before proceeding further.Installation example see figure 5.Indoor unit installationWhen installing optional accessories (except for the decorationpanel), read also the installation manual of the optionalaccessories. Depending on the field conditions, it may be easierto install optional accessories before the indoor unit is installed.However, for existing ceilings, install fresh air intake kit beforeinstalling the unit.Installation shall be done by an installer, the choice of materialsand installation shall comply with the applicable legislation. InEurope the EN378 is the applicable standard that shall be used.1. Install the indoor unit temporarily.• Attach the hanger bracket to the suspension bolt. Be sure tofix it securely by using a nut and washer from the upper andlower sides of the hanger bracket.• Securing the hanger bracket see figure 6.2. Fix the paper pattern for installation. (For new ceilingsonly.)• The paper pattern for installation corresponds with themeasurements of the ceiling opening. Consult the builder fordetails.• The centre of the ceiling opening is indicated on the paperpattern for installation. The centre of the unit is indicated onthe unit casing and on the paper pattern for installation.• After removing the packaging material from the paper patternfor installation, attach the paper pattern for installation to theunit with the attached screws as shown in figure 8.• Adjust the height of the unit until it matches the indication infigure 8.3. Adjust the unit to the right position for installation.(Refer to "Preparations before installation" on page 3.)4. Check if the unit is horizontally levelled.• Do not install the unit tilted. The indoor unit is equipped with abuilt-in drain pump and float switch. (If the unit is tilted againstthe direction of the condensate flow (the drain piping side israised), the float switch may malfunction and cause water todrip.)• Check if the unit is levelled at all four corners with a waterlevel or a water-filled vinyl tube as shown in figure 12.5. Remove the paper pattern for installation. (For newceilings only.)Refrigerant piping workFor refrigerant piping of outdoor unit, refer to the installationmanual supplied with the outdoor unit.Execute heat insulation work completely on both sides of the gaspiping and the liquid piping. Otherwise, this can sometimes resultin water leakage.Before rigging tubes, check which type of refrigerant is used.Protect or enclose refrigerant tubing to avoid mechanical damage. Use a pipe cutter and flare suitable for the used refrigerant. To prevent dust, moisture or other foreign matter frominfiltrating the tube, either pinch the end, or cover it with tape. Use copper alloy seamless pipes (ISO 1337). The outdoor unit is charged with refrigerant. To prevent water leakage, execute heat insulation workcompletely on both sides of the gas and liquid piping. Whenusing a heat pump, the temperature of the gas piping canreach up to approximately 120°C, use insulation which issufficiently heat resistant.1 Dimensions inside frame2 Opening dimension inside the frame for ceiling3 Frame4 Ceiling material5 Ceiling opening dimension6 Ceiling-panel overlapping dimensionNOTE Installation is possible with a ceiling dimension of910 mm (marked with *). However, to achieve aceiling-panel overlapping dimension of 20 mm, thespacing between the ceiling and the unit should be35 mm or less. If the spacing between ceiling and theunit is over 35 mm, attach ceiling material to the part orrecover the ceiling.1 Ceiling slab2 Anchor3 Long nut or turn-buckle4 Suspension bolt5 False ceilingNOTE All the above parts are field supplied.For other installation than standard installation, contactyour dealer for details.1 Nut (field supplied)2 Washer (supplied with the unit)3 Hanger bracket4 Double nut (field supply, tighten)1 Paper pattern for installation2 Centre of the ceiling opening3 Centre of the unit4 Screws (supplied with the unit)1 Water level2 Vinyl tubeAll field piping must be provided by a licensed refrigerationtechnician and must comply with the relevant local andnational codes.