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AIR CONDITIONER
INSTALLATION MANUAL
INDOOR UNIT (Compact cassette type)
For authorized service personnel only.
MANUEL D'INSTALLATION
UNITÉ INTÉRIEURE (Type cassette compacte)
Pour le personnel agréé uniquement.
MANUAL DE INSTALACIÓN
UNIDAD INTERIOR (Tipo casete)
Únicamente para personal de servicio autorizado.
PART No. 9374318599-02
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Table of Contents
Related Manuals for Fujitsu AU7
Summary of Contents for Fujitsu AU7
- Page 1 AIR CONDITIONER INSTALLATION MANUAL INDOOR UNIT (Compact cassette type) For authorized service personnel only. MANUEL D’INSTALLATION UNITÉ INTÉRIEURE (Type cassette compacte) Pour le personnel agréé uniquement. MANUAL DE INSTALACIÓN UNIDAD INTERIOR (Tipo casete) Únicamente para personal de servicio autorizado. PART No. 9374318599-02...
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Page 2: Table Of Contents
INSTALLATION MANUAL This symbol refers to a hazard or unsafe WARNING: practice which can result in severe personal PART No. 9374318599-02 injury or death. INDOOR UNIT (Compact cassette type) Contents This symbol refers to a hazard or unsafe CAUTION: practice which can result in personal injury and the potential for product or property 1. -
Page 3: About This Product
...In a Snowy Area (for Heat Pump-type Systems) 2. ABOUT THIS PRODUCT Install the outdoor unit on a raised platform that is higher than drifting snow. 2.1. Precautions for using R410A refrigerant When Connecting Refrigerant Tubing • Keep all tubing runs as short as possible. The basic installation work procedures are the same •... -
Page 4: For Authorized Service Personnel Only
After installation, explain correct operation to the (3/4 in.) customer, using the operating manual. All Fujitsu General products are manufactured to metric units and tolerances. United States custom- ary units are provided for reference only. In cases Drain hose insulation... -
Page 5: Cassette Grille Accessories
Cassette grille Diameter MODEL Liquid pipe Gas pipe Screw [pitch small] For mounting the Hook AU7/9/12 1/4 in. (6.35 mm) 3/8 in. (9.52 mm ) (M4 × 10 mm) Wire (for metals) AU18 1/4 in. (6.35 mm) 1/2 in. (12.70 mm) •... -
Page 6: Electrical Requirement
(Unit weight x 3*) should be able to blow all over the room. (3) Leave the space required to service the air conditioner. AU7/9/12/18 117 Lbs (53kg) (4) The ceiling rear height as shown in the fi gure. *In accordance with UL standards. -
Page 7: Installation The Unit
• This product can be installed at a height of up to 10 ft (3 m). 20-7/8 (530) Unit: in (mm) (Hanging bolt position) However, 7000, 9000 Btu/h models cannot be installed in high ceilings. Perform the Function Setting on the remote controller in ac- cordance with the installed height. -
Page 8: Installing Drain Pipes
Hanging fi ttings 59-1/16 to 6 ft 3/4in. (1.5 to 2 m) Special nut A Unit: in. (mm) After installing the Hook body, tighten the nuts. Special nut B 1-3/16 (30) Hanger bolt or more 3/4 in. Downward gradient 1/100 to 1/50 PROHIBITED: 3/4 (19) Ceiling... -
Page 9: Pipe Installation
Unit: in. (mm) Hose band (a) Top view 6.1. Selecting the pipe material (b) Side view (19) CAUTION Applying area 3/16 to 6/16 (5 to 10) of adhesive Do not use existing pipes. 1-3/8 (35) 13/16 (20) Use pipes that have clean external and internal sides without any contamination which may cause trouble during use, such Gauge line as sulfur, oxide, dust, cutting waste, oil, or water. -
Page 10: Flare Connection
6.3.2. Bending pipes 6.3. Flare connection CAUTION CAUTION To prevent breaking of the pipe, avoid sharp bends. If the pipe is bent repeatedly at the same place, it will Do not use mineral oil on fl ared part. Prevent mineral break. -
Page 11: Installing Heat Insulation
Flare nut [in. (mm)] Tightening torque [lbf·ft (N·m)] Match the terminal block numbers and connection cable colors with those of outdoor unit or branch box. 1/4 (6.35) dia. 11.8 to 13.3 (16 to 18) Erroneous wiring may cause burning of the electric 3/8 (9.52) dia. -
Page 12: Wiring System Diagram
Connection cable to outdoor unit or BRANCH BOX OUTDOOR UNIT or BRANCH BOX INDOOR UNIT SIDE 14AWG Ring terminal (Inter-unit) INDOOR DISCONNECT Power lines UNIT SWITCH Power line Sleeve TERMINAL (Locally purchased) Screw with special washer Screw with Control line special washer Earth Ring terminal... -
Page 13: Remote Controller Setting
(2) After wiring is complete, secure the remote controller 8. REMOTE CONTROLLER SETTING cable, connection cable, and power cable with the cable clamps. CAUTION Connection cable (to OUTDOOR UNIT or When detecting the room temperature BRANCH BOX) Temperature using the remote controller, please sensor set up the remote controller accord- Wired remote controller cable... -
Page 14: Setting The Dip Switches
8.2. Setting the DIP switches 1. Red 2. White Hole 3. Black Set the remote controller DIP switches. [Example] Front case (back side) CAUTION Cable tie (Small) When connecting the remote controller wires, do not overtighten the screws. [Example] Remote controller cable DIP switch 1 Connector... -
Page 15: Install Panel To Unit
• Arrange the wires as illustrated. 9.2. Install panel to unit (1) Install the cassette grille on the indoor unit. “DRAIN” mark “PIPE” mark (3) Attach the connector cover. Connector cover Screw * Align the stamped marks on the cassette grille to the pipe and the drain of the indoor unit. - Page 16 (2) Press the SET BACK button to select the indoor unit • Function Details number. (1) Filter sign SET BACK Select appropriate intervals for displaying the fi lter sign on the indoor unit according to the estimated amount of dust in the air of the room.
- Page 17 (6) Remote controller custom code • Temperature Correction (Only for wireless remote controller) NOTE: The indoor unit custom code can be changed. When changing Function 95, perform this setting before other Select the appropriate custom code. Room temp. control settings (Function 30, 31, 92, 93). (♦...
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Page 18: Special Installation Methods
(3) Room temperature control for wired remote con- troller sensor Indoor unit Depending on the installed environment, correction of the wire remote temperature sensor may be required. Select the appropriate control setting according to the installed environment. To change this setting, set Function 42 to Both "01". Ensure that the Thermo Sensor icon is displayed on the B. -
Page 19: Test Run
12. TEST RUN 14. CUSTOMER GUIDANCE Check items Explain the following to the customer in accordance with the operating manual: (1) Is operation of each button on the remote control unit nor- mal? (1) Starting and stopping method, operation switching, tem- (2) Does each lamp light normally? perature adjustment, timer, air fl... -
Page 20: Error Codes
15. ERROR CODES If you use a wired remote controller, error codes will appear on the remote controller display. If you use a wireless remote con- troller, the lamp on the photodetector unit will output error codes by way of blinking patterns. See the lamp blinking patterns and error codes in the following table. - Page 21 [Troubleshooting at the remote controller LCD] This is possible only on the wired remote controller. [Self-diagnosis] If an error occurs, the following display will be shown. (“Er” will appear in the set room temperature display.) Error code Example: Self-diagnosis En-20...