ACZEM4H4R18
From Technical Support Wiki
ACZEM4H4R18 is the 15 SEER 18,000 Btu indoor unit of the Blue Series.
Remote Control
| # | Name | Description |
| 1 | ON/OFF | Press to start or stop operation. |
| 2 | MODE | Press to select operation mode (Auto/Cool/Dry/Fan/Heat). |
| 3 | + (Raise) | Press to raise the temperature setting. |
| 3 | - (Lower) | Press to lower the temperature setting. |
| 4 | FAN | Press to set fan speed. Rotates between Auto and Speeds 1-4. |
| 5 | SWING | Press to set swing angle. |
| 6 | SLEEP | Press to turn on sleep function. |
| 7 | TIMER | Manage the on and off timer with this button. |
Wiring Diagram
PCB Printed Diagram
| Number | Description |
|---|---|
| 1 | Live wire interface |
| 2 | Neutral wire interface |
| 3 | Fuse |
| 4 | PG motor |
| 5 | Auto button |
| 6 | Up and down swing terminal interface |
| 7 | PG feedback |
| 8 | IDU and ODU communication interface |
| 9 | Display terminal interface |
| 10 | Jumper |
| 11 | Ambient temperature sensor |
| 12 | Tube temperature sensor |
Exploded View and Parts List
| Number | Part Name | Part Number |
|---|---|---|
| 1 | Front Panel Sub-Assy | 20012286_L14385 |
| 2 | Filter Sub-Assy | 1112208901 |
| 3 | Screw Cover | 24252016 |
| 4 | Front Case Sub-Assy | 20022172 |
| 5 | Guide Louver | 10512115 |
| 6 | Air Louver 1 | 10512708 |
| 7 | Helicoid Tongue | 26112238 |
| 8 | Left Axile Bush | 10512037 |
| 9 | Rear Case Assy | 22202128 |
| 10 | Rubber Plug (Water Tray) | 76712012 |
| 11 | O-Gasket of Cross Fan Bearing | 76512203 |
| 12 | O-Gasket Sub-Assy of Bearing | 7651205102 |
| 13 | Evaporator Support | 24212133 |
| 14 | Evaporator Assy | 01002000028 |
| 15 | Wall Mounting Frame | 01252218 |
| 16 | Cross Flow Fan | 10352019 |
| 17 | Motor Press Plate | 26112494 |
| 18 | Fan Motor | 1501214601 |
| 19 | Pipe Clamp | 26112164 |
| 20 | Drainage Hose | 05230014 |
| 21 | Step Motor | 15012086 |
| 22 | Crank | 10582070 |
| 23 | Display Board | 30565093 |
| 24 | Air Louver 2 | 10512709 |
| 25 | Electric Box Assy | 10000200507 |
| 26 | Lower Shield of Electric Box | 01592091 |
| 27 | Electric Box | 2011210802 |
| 28 | Axile Bush | 10542036 |
| 29 | Terminal Board | 42011233 |
| 30 | Jumper | 4202300109 |
| 31 | Electric Box Cover 2 | 2011208112 |
| 32 | Main Board | 30138000014 |
| 33 | Shield Cover of Electric Box | 01592092 |
| 34 | Electric Box Cover 1 | 2012215401 |
| 35 | Remote Controller | 30510092_L14385 |
| 36 | Temperature Sensor | 390000453 |
| 37 | Temperature Sensor | 390000599 |