MANUEL D'INSTALLATION UNITÉ INTÉRIEURE (Type cassette) Pour le personnel de service agrée uniquement. MANUAL DE INSTALACIÓN UNIDAD INTERIOR (Tipo cassette) Únicamente para personal de servicio autorizado. Français INDOOR UNIT (Cassette type) For authorized service personnel only. Español INSTALLATION MANUAL English AIR CONDITIONER PART No. 9381798056 9381798056_IM_3L.
INSTALLATION MANUAL In Case of Improper Installation The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document. PART No. 9381798056 INDOOR UNIT (Cassette type) Contents 1.2. SPECIAL PRECAUTIONS 1. SAFETY PRECAUTIONS ……………………………………………………………… 1 1.1. IMPORTANT! Please read before starting ……………………………………… 1 1.2. SPECIAL PRECAUTIONS ………………………………………………………… 1 2.
CAUTION • Read carefully all safety information written in this manual before you install or use the air conditioner. • Install the product by following local codes and regulations in force at the place of installation, and the instructions provided by the manufacturer. • This product is part of a set constituting an air conditioner. The product must not be installed alone or be installed with non-authorized device by the manufacturer.
3. GENERAL SPECIFICATION 4. INSTALLATION WORK WARNING 3.1. Selecting the pipe material CAUTION • Do not use existing pipes from another refrigeration system or refrigerant. • Use pipes that have clean external and internal sides without any contamination which may cause trouble during use, such as sulfur, oxide, dust, cutting waste, oil, or water. • It is necessary to use seamless copper pipes.
[Unit: in (mm)] 11 (256) or more (18/24 model) 12 (298) or more (30/36/42 model) 5-1/2 to 5-11/16 (140 to 145) 1-15/16 to 3-15/16 (50 to 100) 4.2. Installation dimension • The ceiling rear height as shown in the figure. Model Strong and durable ceiling Dimension [in (mm)] A B 18/24 9-11/16 (246) 10-1/16 (256) 30/36/42 11-5/16 (288) 11-3/4 (298) 3/8 (10) 119 (3,000) or more 71 (1,800) to H Obstruction • Refrigerant piping and drain piping positions.
4.3.2. Hanging preparations • Firmly fasten the hanging bolts as shown in the figure or by another method. • Install the hanging bolts at a place where they would be capable of holding a weight of at least 110 lbf (490 N) per bolt. Pipe size Hole-in anchor Hole-in plug Concrete Insert Drain pipe Ø 3/4 in [I.D.]; Ø 1-1/16 in [O.D.] Hanging fittings Hanging bolt M10 (locally purchased) 60 to 78 in (1.5 to 2.0 m) Ø 3/4 in [I.D.]; Ø 1-1/16 in [O.D.] Downward gradient 1/100 to 1/50 4.3.3.
(a) Top view Check if [L] is flared uniformly and is not cracked or scratched. (b) Side view Ø 3/4 in [I.D.]; Ø 1-1/16 in [O.D.] Applying area of adhesive 1-3/8 in (35 mm) Hose Band B Die A L Pipe 3/16 to 3/8 in (5 to 10 mm) Gauge line 3/16 in (4 mm) or less Dimension A [in (mm)] Pipe outside diameter [in (mm)] 13/16 in (20 mm) (d) Hose opening view (c) Top view Wind the attached heat insulation around the hose band Make sure the alignment is on top (0) Dimension B 0-0.015 (-0.
CAUTION 5.2. Installing heat insulation CAUTION • After checking for gas leaks (refer to the Installation Manual of the outdoor unit), perform this section. • Install heat insulation around both the large (gas) and small (liquid) pipes. Failure to do so may cause water leaks. After checking for gas leaks, insulate by wrapping insulation around the 2 parts (gas and liquid) of the indoor unit coupling, using the Coupler Heat Insulation.
6.1.3. Wiring procedure (2) Thread each cable through the holes or indents of the cabinet and connect the wires. Connection cable 1 2 3 Control line Earth (ground) Power line Lock nut Connection cable Outdoor unit Earth (ground) Conduit connector Remote controller cable (3) After wiring is complete, secure the cables with the cable clamps.
Ceiling height 9. FUNCTION SETTING Select the appropriate ceiling height according to the place of installation. (♦... Factory setting) 9.1. Turning on the power Function number CAUTION Setting value Recheck the wiring. Incorrect wiring will cause trouble. When initially starting up this unit, the following setting screen will be displayed. Settings configured at this stage can be changed afterwards. 20 Setting description Standard [119 in (3.0 m): 18/24 model] [126 in (3.
Room temperature control for wired remote controller sensor 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 remote controller screen. (♦... Factory setting) Setting value Function number 35 36 (For cooling) (For heating) No correction 01 No correction 0 °F (0.
Set the R.C. address in accordance with the table below. 10. SPECIAL INSTALLATION METHODS Indoor unit CAUTION • Be sure to turn off the electrical breaker before making settings. • Do not set the DIP switch or rotary switch of this unit except as specified in this manual or the operating manual supplied with the air conditioner. Setting the switches other than specified will cause an accident or trouble. • Do not touch the circuit board and circuit board parts directly with your hands.
● When function setting is “Forced stop” mode. 11. OPTION AND OTHER CONNECTABLE DEVICES Input signal WARNING Regulation of cable differs from each locality, refer in accordance with local rules. Command OFF → ON Forced stop ON → OFF Normal * When the forced stop is triggered, indoor unit stops and Operation/Stop operation by a remote controller is restricted. 1 2 3 ● When function setting is "Operation/Stop" mode 2. Input signal Command Y1 Operation ON → OFF Stop (R.C.
11.2.3. Connection methods Wire modification 13. TEST RUN • Remove insulation from wire attached to wire kit connector. • Remove insulation from locally purchased cable. Use crimp type insulated butt connector to join field cable and wire kit wire. • Connect the wire with connecting wire with solder. IMPORTANT: Be sure to insulate the connection between the wires.
Error display Error display Operation indicator lamp (green) Wired Timer Economy remote indicator indicator controller lamp lamp Error code (orange) (green) Description Operation indicator lamp (green) Wired Timer Economy remote indicator indicator controller lamp lamp Error code (orange) (green) Description (2) (9) Connection unit number error in wired remote controller system (3) (1) Power supply interruption error (8) (2) (3) (2) Indoor unit PCB model information error (8) (3
