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Fujitsu AOU18CL, Installation Manual

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Fujitsu AOU18CL Installation Manual Download Page 12

The method of adjusting inter-unit wire harness

To connect inter-unit wire harness to the terminal correctly, please
refer to Fig. 19 to adjust the length of the part of Inter-unit Wire
harness ahead from conduit holder.

5-1/2" (140mm)

15/16" (25mm)

15/16" (25mm)

4-3/16" (105mm)

(1:1)

14AWG

EARTH WIRE

CONDUIT PLATE

CONDUIT CONNECTOR

Fig. 19

Summary of Contents for AOU18CL

Page 1: ...s Connect all wiring tightly Loose wiring may cause overheating at con nection points and a possible fire hazard When Transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers When Installing In a Ceiling or Wall Ma...

Page 2: ...o 38 bar for low pressure To increase pressure resistance the hose material and base size were changed A conventional vacuum pump can be used by installing a vacuum pump adapter Special gas leakage detector for HFC refrigerant R410A Tool name Gauge manifold Charge hose Vacuum pump Gas leakage detector Copper pipes It is necessary to use seamless copper pipes and it is desirable that the amount of ...

Page 3: ...low Between 49 ft 15 m and 66 ft 20 m when using a connection pipe other than that in the table charge additional refrigerant with 0 2 oz ft 20g 1 m as the criteria 2 ADDITIONALMATERIALSREQUIREDFOR INSTALLATION A Refrigeration armored tape B Insulated staples or clamps for connecting wire See your local electrical codes C Putty D Refrigeration lubricant E Clamps or saddles to secure refrigerant pi...

Page 4: ... WARNING Install at a place that can withstand the weight of the indoor and outdoor units and install positively so that the units will not topple or fall CAUTION 1 Do not install where there is the danger of com bustible gas leakage 2 Do not install near heat sources 3 If children under 10 years old may approach the unit take preventive measures so that they can not reach the unit Indoor unit pip...

Page 5: ...ht hand side Rear piping Right piping Bottom piping Install the indoor unit piping in the direction of the wall hole and bind the drain hose and pipe together with vinyl tape Fig 3 Install the piping so that the drain hose is at the bottom Wrap the pipes of the indoor unit that are visible from the outside with decorative tape For Left rear piping Left piping Interchange the drain cap and the drai...

Page 6: ...ttings will not enter the pipe and remove the burrs 3 Insert the flare nut onto the pipe and flare the pipe with a flaring tool Check if L is flared uniformly and is not cracked or scratched L dimension Thin pipe 1 4 6 35 mm dia 1 16 1 4 to 1 7 mm Thick pipe 1 2 12 7 mm dia 5 64 1 9 to 2 2 mm Flare nut 1 4 6 35 mm dia 1 2 12 7 mm dia Tightening torque 11 57 to 13 02 ft lbs 160 to 180 kgf cm 36 17 ...

Page 7: ... 8 At the end of pump down close the low pressure side gauge of the gauge manifold fully and stop the vacuum pump 9 Slowly loosen the valve stem of the 3 way valve When the compound pressure gauge reading reaches 0 1 0 2 MPa retighten the valve stem and disconnect the charge hose from the 3 way valve charging port If the stem of the 3 way valve is opened fully before the charge hose is disconnecte...

Page 8: ...Therefore be sure all wiring is tightly connected Connect wires to the matching numbers of terminals NOTE Connector trade size for this unit is 1 2 12 7 mm The connec tor can be bought at a hardware store Refer to How to connect wiring to the terminals for instructions on connecting depend ing on the wire type you are using The fuse located in the outdoor unit provides power supply pro tection and...

Page 9: ...lamp Connection cord Screw Connection cord Screw Cord clamp A For solid core wiring or F cable 1 Cut the wire end with a wire cutter or wire cutting pliers then strip the insulation to about 15 16 25 mm to expose the solid wire 2 Using a screwdriver remove the terminal screw s on the terminal board 3 Using pliers bend the solid wire to form a loop suitable for the termi nal screw 4 Shape the loop ...

Page 10: ... the intake grille 2 Pull down the knob 3 Lift the intake grille upward until the axle at the top of the intake grille is removed THE INTAKE GRILLE INSTALLATION 1 The fixing axle of the intake grille is installed on the Panel 2 Lay down the intake grille THE FRONT PANEL REMOVAL 1 Remove intake grille Reference the intake grille removal 2 Remove four screws 3 The thumb is hung on the lower part as ...

Page 11: ...ration of each button on the remote control unit normal 2 Does each lamp light normally 3 Do the air flow direction louver operate normally 4 Is the drain normal 2 OUTDOOR UNIT 1 Is there any abnormal noise and vibration during operation 2 Will noise wind or drain water from the unit disturb the neighbors 3 Is there any gas leakage Fig 18 Transmitter section Test run button PUMP DOWN OPERATION FOR...

Page 12: ...ter unit wire harness to the terminal correctly please refer to Fig 19 to adjust the length of the part of Inter unit Wire harness ahead from conduit holder 5 1 2 140mm 15 16 25mm 15 16 25mm 4 3 16 105mm 1 1 14AWG EARTH WIRE CONDUIT PLATE CONDUIT CONNECTOR Fig 19 ...

Page 13: ...ver the recommended maxuim length 7 Before setting up the wired remote control unit please confirm whether air conditioner can receive the signal 1 FRONT PANEL AND CONTROL UNIT REMOVAL 1 Refer to FRONT PANEL REMOBAL AND INSTALLATION to remove the front panel 2 Remove screws of the heat exchanger ang then remove grounding wire 3 Remove 2 thermistor 4 Remove screw then remove the connector cover and...

Page 14: ...t be affected by the heat from a stove etc 1 REMOTE CONTROL UNIT HOLDER INSTALLATION Install the remote control unit with a distance of 23 ft 7 m between the remote control unit and the photocell as the criteria However when installing the remote con trol unit check that it operates positively Install the remote control unit holder to a wall pillar etc with the tapping screw Fig 20 Remote control ...

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