INSTALLATION MANUAL This mark indicates procedures which, if improperly performed, might CAUTION PART NO. 9373370147-02 possibly result in personal harm to the user, or damage to property. VRF system indoor unit (Wall mounted type) Read carefully all security information before use or install the air conditioner. CONTENTS Do not attempt to install the air conditioner or a part of the air conditioner by yourself.
3. INSTALLATION WORK 2.3. Accessories Correct initial installation location is important because it is diffi cult to move unit after it is WARNING installed. For installation purposes, be sure to use the parts supplied by the manufacturer or other 3.1. Selecting an installation location prescribed parts.
Wall hook bracket 3.3. Installation the unit WARNING Install the air conditioner in a location which can withstand a load of at least 5 times the weight of the main unit and which will not amplify sound or vibration. If the installation location is not strong enough, the indoor unit may fall and cause injuries.
[For Rear piping, Right piping and Bottom piping] Thicknesses of Annealed Copper Pipes (R410A) • The drain hose and drain cap are used as they are. Pipe outside diameter [mm (in.)] Thickness [mm] [For Left bottom piping, Left piping and Center piping, Left rear piping]...
6. ELECTRICAL WIRING 6.1. Electrical requirement Voltage rating 230 V WARNING Operating range 198 to 264 V Electrical work must be performed in accordance with this Manual by a person • Select the power cable type and size in accordance with relevant local and national certifi...
WARNING 6.2. Wiring method When using solid core cables, do not use the attached ring terminal. If you use the solid core cables with the ring terminal, the ring terminal's pressure bonding may malfunction EXAMPLE and cause the cables to abnormally heat up. Outdoor unit or RB unit *1 B.
6.3.3. Remote controller cable 6.4. Wiring Remote controller cable modifi cation. Connect the end of the connection cable fully into the terminal block. (1) Use a tool to cut off the terminal on the end of the remote controller cable, and then Wired remote controller remove the insulation from the cut end of the cable.
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Input select P.C.B Use either one of these types of terminal according to the application. (Both types of terminals cannot be used simultaneously.) ● Apply voltage terminal ([CNA01], [CNA03]) CNA02 When a power supply must be provided at the input device you want to connect, use the Apply voltage terminal ([CNA01], [CNA03]).
● When function setting is “Forced stop” mode. (3) Connection methods [In the case of “Edge” input] • Wire modifi cation Remove insulation from wire attached to wire kit connector. Connector Input signal Command Remove insulation from fi eld supplied cable. Use crimp type insulated butt connector to OFF →...
Intake Rotary switch Rotary switch Ex- Example: “0” grille ample: “0” Mounting shaft Intake grille Bearing Knob Front panel Front panel removal. (1) Remove intake grille (Refer to the item of intake grille removal.) (2) Remove 6 screws. CAUTION (3) Push the [▲] part on the lower part of the body upwards with your thumb of both hands to detach the 2 hooks, and then pull the front panel forward to remove it.
Setting Setting range Type of switch 7.3. Switching the upper limit of cooling temperature Setting Remote control- 0 to 15 example ler address This setting can be raised the upper limit of the cooling temperature setting range. RC AD This setting can be used when connecting to the following controllers. •...
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7.4.2. Checking the function settings ○ Adjust the heat air trigger Default temperature. To lower the trigger tem- Press and hold the “MANUAL AUTO” button on the indoor unit for 3 seconds to check Heat air perature by 6 degrees C, use setting 01 Adjust (1) the function settings.
8. FINISHING 8.2. Installing front cover Fix the indoor unit CAUTION (1) Please remove the spacer. After checking for gas leaks (refer to the Installation Manual of the outdoor unit), perform this section. Indoor Unit Install heat insulation around both the large (gas) and small (liquid) pipes. Failure to do so may cause water leaks.
Check that: 11. ERROR CODES • The top and bottom hooks are hooked fi rmly and the indoor unit does not move to the front and rear or left and right. If you use a wired type remote controller, error codes will appear on the remote controller display.
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Wired Remote Controller Display UTY-RNKY / UTY-RNKG / UTY-RNKYT (3-wire type) Error code URY-RNRY / UTY-RNRG (2-wire type) Touch the [Next Page] (or [previous page]) Error icon to switch to other indoor unit information. Touch the [Status]. Touch the [Error Information]. 2-digit numbers are corresponding to the error code in the preceding table.
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