Pioneer 18,000 BTU 21.8 SEER2 One Way Ceiling Cassette Mini Split Air Conditioner Heat Pump System Full Set User Guide
- June 13, 2024
- Pioneer
Table of Contents
Pioneer 18,000 BTU 21.8 SEER2 One Way Ceiling Cassette Mini Split Air
Conditioner Heat Pump System Full Set
Product Information
This user manual provides instructions for disassembling the Indoor Unit of the One-way Cassette product. The manual includes detailed procedures and illustrations for disassembling the filter and panel, display board, and electrical parts.
Indoor Unit Disassembly
Filter and Panel
- For panel with lift function, grab air grille with your fingers and pull it out slowly in the direction of the arrow (see Fig. 1).
- For panel without lift function, push one side of the grille clamp (on the both sides of the grille), and then remove 2 screws (see Fig. 2).
- Turn over the air inlet grille assembly then take out the filter (see Fig. 3).
- Open the two covers on both sides of the panel and remove the 3 screws (see Fig. 4).
- Open the louver and open the screw cover, then remove the screw (see Fig. 5).
- Remove 3 screws (see Fig. 6).
- Separate panel and water collector, then remove the panel (see Fig. 7).
- Remove 2 screws and remove the cover of electronic control box (see Fig. 8).
- 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.
- Remove 1 screw of display board subassembly (see Fig. 9).
Note: This section is for reference only. Actual unit appearance may vary.
Electrical Parts (Antistatic gloves must be worn.)
Note: Remove the panel (refer to 1.1) before disassembling electronic control box subassembly.
-
Open left cover of panel (see Fig. 10).
-
Remove 2 screws and remove the cover of electronic control box (see Fig. 8).
-
Remove 2 screws of air switch cover (see Fig. 11)(for some models).
-
Disconnect connectors and then remove the main control board (3 clips) (see Fig. 12).
(If wanting to repair the main control board assembly, perform steps 1 to 4; If wanting to repair the electrical control box subassembly, perform steps 5 to 6 as follows.) -
Remove 4 screws of electronic control box subassembly (see Fig. 13-1 & Fig. 13-2).
-
Remove the electronic control box subassembly.
Note: Remove the panel (refer to 1.1) before disassembling electronic control box subassembly.
Water Collector
Note: Remove the panel (refer to 1.1) before disassembling water
collector.
- Remove the 5 screws and remove the water collector (see Fig. 14).
Water Pump
Note: Remove the panel & water collector (refer to 1.1 & 1.4) before
disassembling water pump.
- Remove 2 screws and take out water pump assembly (see Fig. 15).
- Loosen the spring (see Fig. 15).
- Pull out the drain pipe (see Fig. 15).
Evaporator
Note: Remove the panel, water collector & water pump (refer to 1.1, 1.4, & 1.5) before disassembling evaporator.
- Remove the 2 screws of the pipe clamp board (see Fig. 16).
- Remove 2 screws on the left of the evaporator fixing bracket (see Fig. 17).
- 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).
- Remove the evaporator (see Fig. 19).
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.
- Remove 2 screws of fan motor base (see Fig. 20).
- Pull out the fan motor and fan assembly.
- Remove the fastening screw and remove the fan motor (see Fig. 21).
Stepper Motor
Note: Remove the panel (refer to 1.1) before disassembling stepper
motor.
- Open the louver and push the hooks in the direction shown in the right side picture (see Fig. 22).
- Remove 2 screws fixing the motor cover, and remove it (see Fig. 23).
- Remove 2 screws and remove the stepper motor (see Fig. 24).
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