Ductless mini split system air conditioner / heat pump, uab: cooling only version / uyb: cooling and heating version series flex mount, inverter plus and inverter plus plus models, 18,000-48,000 btu/hr (18 pages)
Indoor Unit Disassembly-One-way Cassette Contents Indoor Unit Disassembly ......................1 Filter and Panel ........................2 Display Board ........................6 Electrical Parts .........................7 Water Collector & Water Level Switch ..............10 Water Pump ........................11 Evaporator .........................12 Fan Motor and Fan ......................14 Stepper Motor ........................15...
Indoor Unit Disassembly Filter and Panel Procedure Illustration For panel with lift function, grab air grille with your fingers and pull it out slowly in the direction Fig. 1 ). of the arrow (see Grab at these locations Figure 1 For panel without lift function, push one side of the grille clamp (on the both sides of the grille),...
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Procedure Illustration Turn over the air inlet grille assembly then take out the filter Fig. 3 ). (see Figure 3 Open the two covers on both sides of the panel and remove the 3 screws (see Fig. 4). Figure 4 Note: This section is for reference only.
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Procedure Illustration Open the louver and open the screw cover, then remove the Fig. 5 ). screw (see Remove 3 screws (see Fig. 6). Figure 5 Figure 6 Note: This section is for reference only. Actual unit appearance may vary. Indoor Unit Disassembly ...
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Procedure Illustration Separate panel and water collector, then remove the panel Fig. 7 ). (see Figure 7 Remove 2 screws and remove the cover of electronic control Fig. 8 ). box (see Disconnect the connectors of display board and stepper motor and release the panel.
Display Board Note: Open the left cover of panel (refer to 1.1. filter and panel) before disassembling display board. Procedure Illustration Remove 1 screw of display board subassembly (see Fig. 9). Figure 9 Note: This section is for reference only. Actual unit appearance may vary. Indoor Unit Disassembly ...
Electrical Parts (Antistatic gloves must be worn.) Note: Remove the panel (refer to 1.1) before disassembling electronic control box subassembly. Procedure Illustration Fig. 10 ). Open left cover of panel (see Remove 2 screws and remove the cover of electronic control box Fig.
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Procedure Illustration Disconnect connectors and then remove the main control board Pump Fig. 12 ). (3 clips) (see Earth wire (If wanting to repair the main control board assembly, perform steps 1 to 4; If wanting to repair the electrical control box subassembly, perform Fan motor steps 5 to 6 as follows.)
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Procedure Illustration Remove 4 screws of electronic control box subassembly Fig. 13-1 & Fig. 13-2 ). (see Remove the electronic control box subassembly. Note: Remove the panel (refer to 1.1) before disassembling electronic control box subassembly. Figure 13-1 Figure 13-2 Note: This section is for reference only.
Water Collector Note: Remove the panel (refer to 1.1) before disassembling water collector. Procedure Illustration Remove the 5 screws and remove the water collector (see Fig. 14). Figure 14 Note: This section is for reference only. Actual unit appearance may vary. Indoor Unit Disassembly ...
Water Pump Note: Remove the panel & water collector (refer to 1.1 & 1.4) before disassembling water pump. Procedure Illustration Step 3 Remove 2 screws and take out water pump assembly (see Fig. 15). Loosen the spring (see Fig. 15). Step 2 Pull out the drain pipe (see Fig.
Evaporator Note: Remove the panel, water collector & water pump (refer to 1.1, 1.4, & 1.5) before disassembling evaporator. Procedure Illustration Remove the 2 screws of the pipe clamp board (see Fig. 16). Figure 16 Remove 2 screws on the left of the evaporator fixing bracket (see Fig.
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Procedure Illustration Remove 2 screws on the right of the evaporator. Cut the ribbon by use of a cutting tool, then pull out the coil temp. sensor (T2) and remove 1 ground screw (see Fig. 18). Figure 18 Remove the evaporator (see Fig. 19). Figure 19 Note: This section is for reference only.
Fan Motor and Fan Note: Remove the panel, electrical parts, water collector, water pump, evaporator (refer to 1.1, 1.3, 1.4, 1.5 & 1.6) before disassembling the fan motor. Procedure Illustration Remove 2 screws of fan motor base (see Fig. 20). Figure 20 Pull out the fan motor and fan assembly.
Stepper Motor Note: Remove the panel (refer to 1.1) before disassembling stepper motor. Procedure Illustration Open the louver and push the hooks in the direction shown in the right side picture (see Fig. 22). Figure 22 Remove 2 screws fixing the motor cover, and remove it (see Fig.
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