AIR CONDITIONER INDOOR UNIT Floor/Ceiling Type INSTALLATION MANUAL INSTALLATION MANUAL For authorized service personnel only. INSTALLATIONSANLEITUNG Nur für autorisiertes Personal. MANUEL D'INSTALLATION Pour le personnel agréé uniquement. MANUAL DE INSTALACIÓN Solo para personal autorizado. MANUALE D'INSTALLAZIONE Ad uso esclusivo del personale autorizzato.
PART NO. 9374318445-05 This appliance is not intended for use by persons (including children) with reduced INDOOR UNIT (Floor/Ceiling Type) physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a Contents person responsible for their safety.
Name and Shape Q’ty Name and Shape Q’ty 3. INSTALLATION WORK Operating Manual Installation Manual (This manual) Especially, the installation place is very important for the split type air conditioner because it is very difﬁ cult to move from place to place after the ﬁ rst installation. 3.1.
B. Ceiling type When installing set to wall install the accessory wall bracket at the position as shown in the ﬁ gure, and mount the set to it. Ceiling Left Right Indoor unit Wall bracket Side of set Ceiling Unit : mm B.
B-3. Installing Brackets Do not use copper pipes that have a collapsed, deformed, or discolored portion (es- Install the bracket with nuts, spring washers. pecially on the interior surface). Otherwise, the expansion valve or capillary tube may Bracket (Left) become blocked with contaminants. Ceiling panel Special nut A Improper pipe selection will degrade performance.
4.3.2 Bending pipes Indoor unit • The pipes are shaped by your hands or pipe bender. Be careful not to collapse them. • Do not bend the pipes at an angle more than 90°. • When pipes are repeatedly bend or stretched, the material will harden, making it difﬁ cult to bend or stretch them any more.
(4) Use an appropriate screwdriver to tighten the terminal screws. Do not use a screw- B. Ceiling type driver that is too small, otherwise, the screw heads may be damaged and prevent the Be sure to arrange the drain hose so that it is leveled lower than the drain hose connect- screws from being properly tightened.
Simultaneous twin (18, 22, 24 type only) 6.1. Wiring system diagram Junction box Connection cable (Local purchase) Indoor unit (Primary) Outdoor unit Connection diagrams Earth (Ground) line Standard pair Connection cable Outdoor unit Indoor unit Earth (Ground) line Earth (Ground) line Indoor unit Power line (Secondary)
It may cause erroneous operation. 6.4. Floor/ceiling select switch This unit was set for use as a ceiling type at the factory. When using the unit as a ﬂ oor type, perform the following settings in FUNCTION SET- TING. (Refer to 9. FUNCTION SETTING.) Setting the Cooler Room Temperature Correction →...
2. Mount the cover plate (left) 8.2. Installing the remote controller holder Join the cover plates (left) and mount with the screw (M4 × 10). Cover plate (Left) CAUTION Check that the indoor unit correctly receives the signal from the remote controller, then install the remote controller holder.
STEP 2 (6) Indoor room temperature sensor switching function Selecting the Function Number and Setting Value (Only for Wired remote controller) Press the SET TEMP. ( ) buttons The following settings are needed using the Wired remote controller temperature sensor to select the function number.
NOTE If no buttons are pressed within 30 seconds after the signal code is displayed, the sys- Be sure to set the R.C. address sequentially. tem returns to the original clock display. In this case, start again from step 1. Set the primary and secondary (Remote controller setting) The air conditioner signal code is set to A prior to shipment.
Set the R.C. address (DIP switch setting) Simultaneous Simultaneous Standard Standard Set the R.C. address of each indoor unit using the DIP switches on the indoor unit pair pair twin triple circuit board. (See the following table and ﬁ gure.) Outdoor The DIP switches are normally set to make the R.C.
[Using the wired remote controller] (Option) • For the operation method, refer to the operating manual. Stop the air conditioner operation. Press the MODE button and the FAN button simultane- ously for 2 seconds or more to start the test run. Press the START/STOP button to stop the test run.
Troubleshooting Outdoor unit main PCB model ● ● ◊ [Troubleshooting with the indoor display] information error or communica- tion error Troubleshooting at the display is possible either on the wired or wireless remote controller. Inverter error ● ● ◊ OPERATION Lamp (green) Active ﬁ...