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Hersteller: Hitachi Dateigröße: 640.71 kb Dateiname: Unterrichtssprache:

CAUTION You are free to choose the side (left or right) for the installation of drain hose. Please ensure the smooth flow of condensed water of the Indoor unit during installation. (Careless may result in water leakage.) Condensed water pond Bending upwards Condensed water pond Ditch • The connected terminals should be completed sealed with heat insulator and then tied up with rubber strap. • Do not tie the terminals with the tape too tight. If any clearance or over-tightening may cause condensation. • Please tie the pipe and power line together with vinyl tape as shown in the figure showing the installation of Indoor and Outdoor units. • To enhance the heat insulation and to prevent water condensation, please cover the outdoor part of the drain hose and pipe with insulation pipe. • Completely seal any gap with putty. Insulation material for pipe connection Sleeve of protection pipe Putty Putty Cable drawer (right side) Visible outline of the outdoor unit Wall hole Wall hole Pipe Cable Drain hose Drain layout of backward piping Drain layout of backward piping from left Plug (Procure locally) The components of 9 & 0 are included in the package of the outdoor unit. The end of the refrigerating pipes are at locations marked with “” symbol. 3 Heat Insulation and Finish of the Piping 2,300 mm or more Purifying Filter B 1 06K108_RAS-35_YH6_English.p65 1 11/13/06, 3:02 PM • Please mount the Outdoor unit of stable ground to prevent vibration and increase of noise level. • Decide the location for piping after sorting out the different types of pipe available. • When removing side cover, please pull the handle after undoing the hook by pulling it downward. Reinstall the side cover in the reverse order of the removal. Pull downward Please face this side (suction side) of the unit to the wall. Please remove side cover when connecting the piping and connecting cord. CONDENSED WATER DISPOSAL OF OUTDOOR UNIT • There is holes on the base of Outdoor unit for condensed water to exhaust. • In order to flow condensed water to the drain, the unit is installed on a stand or a block so that the unit is 100mm above the ground as shown figure. Join the drain pipe to one hole. • Cover the drain hole with a bush. To install the bush, put it on the drain hole as shown in the figure and press the both sides of the bush to fit into the hole. After installation, check whether the drain pipe and bush cling to the base firmly. • Install the outdoor unit horizontally and make sure that condensate drains away. • In case of using in chilly area Especially, in case that there are many snows by very cold in chilly area, condensed water freezes on the base and may result not to drain. In this case, please remove the bush and the drain pipe at the bottom of unit. (Left and center near discharge portion of air, each 1 place). It becomes smooth drain. Ensure that the distance from the drain hole to the ground is 250 mm or more. 0 DRAIN PIPE 9 BUSH DRAIN HOLE above 100mm CAUTION • Remove burr and jagged edge will cause leakage. • Point the side to be trimmed downwards during trimming to prevent copper chips from entering the pipe. Copper pipe Trimming tool • Before flaring, please put on the flare nut. A Die Die Copper pipe • Please use exclusive tool for refrigerant R410. Outer A (mm) Rigid Flaring Tool Diameter (O) For R410A tool For R22 tool 6.35 (1/4") 0 - 0.5 1.0 9.52 (3/8") 0 - 0.5 1.0 2 Pipe Connection CAUTION • In case of removing flare nut of a indoor unit, first remove a nut of small diameter side, or a seal cap of big diameter side will fly out. Free from water into the piping when working. • Be sure to tighten the flare nut to the specified torque with a torque wrench. If the flare nut is overtightened, the nut may be split after a long period has passed, and may cause a refrigerant leak. • Please be careful when bending the copper pipe. • Screw in manually while adjusting the center. After that, use a torque wrench to tighten the connection. INSTALLATION OF REFRIGERATING PIPES AND AIR REMOVAL Torque wrench Flare nut Wrench Small diameter side 6.35 (1/4") 13.7 – 18.6 (140 – 190) Large diameter side 9.52 (3/8") 34.3 – 44.1 (350 – 450) Small diameter side 6.35 (1/4") 19.6 – 24.5 (200 – 250) Large diameter side 9.52 (3/8") 19.6 – 24.5 (200 – 250) Valve core cap 12.3– 15.7 (125 – 160) Outer diameter of pipe (o) Torque N·m (kgf·cm) Valve head cap 3 Remove of Air From The Pipe And Gas Leakage Inspection AIR REMOVAL Procedures of using Vacuum Pump for Air Removal As shown in right figure, remove the cap of valve core. Then, connect the charge hose. Remove the cap of valve head. Connect the vacuum pump adapter to the vacuum pump and connect the charge hose to the adapter. 1 Fully tighter the "Hi" shuttle of the manifold valve and completely unscrew the "Lo" shuttle. Run the vacuum pump for about 10-15 minutes, then completely tighten the "Lo" shuttle and switch off the vacuum pump. • Loosen the spindle of the service valve with small diameter by...

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