Safety Precautions • Read these Safety Precautions carefully to ensure correct installation. • This manual classifies the precautions into DANGER, WARNING and CAUTION. Be sure to follow all the precautions below: they are all important for ensuring safety. DANGER ..Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING ..Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
Safety Precautions WARNING • During installation, attach the refrigerant piping securely before running the compressor. If the compressor is not attached and the stop valve is open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
Indoor Unit Installation Drawings Removing and installing indoor unit. • Installation method 1) Using the marks (3 locations) on top of the indoor unit, attach the mounting plate hooks Mounting Mounting onto the indoor unit. plate plate 2) Attach the tabs on the bottom frame onto the Bottom mounting plate.
Installation Tips Removing and installing front panel. Rotating shaft Rotating shaft • Removal method 1) Open the front panel. 2) Spread out the shaft hole on the left side and remove the rotating shaft. Spread out the shaft hole on the right side as well Shaft hole Shaft hole and remove the rotating shaft.
Installing the titanium apatite photocatalytic air-purifying filter and deodorizing filter for streamer. 1) Open the front panel to pull out the air filter. 2) Attach the titanium apatite photocatalytic air- Left side Right side purifying filter. Titanium apatite Deodorizing filter 3) Attach the deodorizing filter for streamer.
Indoor Unit Installation Installing the mounting plate. • The mounting plate should be installed on a wall which can support the weight of the indoor unit. 1) Temporarily secure the mounting plate to the wall, make sure that the panel is completely level, and mark the boring points on the wall.
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Laying piping and wiring. • Lay the piping and drain hose according to the Piping bundle diagram orientation of the piping coming out of the unit, as shown below. Inter-unit wiring • Make sure the drain hose is sloped downward. Gas pipe •...
Indoor Unit Installation 4-4. Wall embedded piping. Inner wall Follow the instructions given under Insert drain hose to this depth so Left-side, left-back, or left-bottom piping it won’t be pulled out of drain pipe. 1) Insert the drain hose to this depth so it won’t be 1-15/16 inch Drain hose (50mm)
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Connecting to the HA system. 1) Remove the front grille. (3 screws) Fig. 1 Location of the tabs 2) Remove the decelerator assembly parts. on the electric parts box (1 screw) Anti-drip cover fixing screw 2-1) Remove the decelerator assembly part screws.
Indoor Unit Installation Drain piping. The drain hose should be inclined downward. 1) Connect the drain hose, as described right. No trap is permitted. Do not put the end of the hose in water. 2) Remove the air filters and pour some water into the drain pan to check the water flows smoothly.
Refrigerant Piping Work Flaring the pipe end. (Cut exactly at 1) Cut the pipe end with a pipe cutter. right angles.) Remove burrs 2) Remove burrs with the cut surface facing downward Flaring Set exactly at the position shown below. so that the chips do not enter the pipe.
Trial Operation and Testing Trial operation and testing. 1-1. Measure the supply voltage and make sure that it falls in the specified range. 1-2. Trial operation should be carried out in either cooling or heating mode. • In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable temperature.
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Two-dimensional bar code is a code for manufacturing. 3P227261-1A M07B241A (1010)