Test run
Error display (AHU)
■‘##’ refers to the address information of the communication PCB.
Display | Error item | Cause of error | Cause or error | |||
number | ||||||
|
|
| ||||
CH | 2 | ## | Temperature sensor | Communication PCB | Temperature sensor disconnection or short circuit at pipe inlet | |
|
|
| error at pipe inlet of | rotary switch number | of indoor unit | |
|
|
| indoor unit | ## |
| |
CH | 3 | 00 | Communication error |
| No communication signal for more than 3 minutes from wired | |
|
|
| between wired remote | - | remote controller to the AHU controller | |
|
|
| controller and AHU |
|
| |
|
|
| controller |
|
| |
CH | 4 | ## | Communication error | Communication PCB | No communication signal for more than 3 minutes from | |
|
|
| between AHU | rotary switch number | communication PCB to AHU controller | |
|
|
| controller and | ## |
| |
|
|
| communication PCB |
|
| |
CH | 5 | ## | Communication error | Communication PCB | No communication signal for 5 minutes continuously from | |
|
|
| between | rotary switch number | communication PCB to outdoor unit | |
|
|
| communication PCB | ## |
| |
|
|
| and outdoor unit |
|
| |
CH | 6 | ## | Temperature sensor | Communication PCB | Temperature sensor disconnection or short circuit on pipe | |
|
|
| error on pipe outlet of | rotary switch number | outlet of indoor unit | |
|
|
| indoor unit | ## |
| |
CH | 8 | 00 | Emergency operation | - | The operating status of the smoke control mode through smoke detector is displayed | |
CH | 13 | 01 | Temperature sensor | RA | Temperature sensor (RA/SA/Mixing) disconnection/short | |
|
|
| error |
| circuit/misconnection or when the sensor value is in the error | |
|
| 02 |
| SA | range | |
|
| 04 |
| Mixing |
| |
CH | 14 | 01 | Humidity sensor error | RA | Humidity sensor (RA/SA/OA) disconnection/short | |
|
| 02 |
| SA | circuit/misconnection or when the sensor value is in the error | |
|
| 03 |
| OA | range | |
CH | 15 | 00 | CO2 sensor error | - | CO2 sensor disconnection/short circuit/misconnection or when | |
|
|
|
|
| the sensor value is in the error range | |
CH | 16 | 05 | Pressure sensor error | Differential pressure | Pressure sensor (Differential pressure, static pressure) disconnection/short | |
|
| 06 |
| Static pressure | circuit/misconnection or when the sensor value is in the error range | |
CH | 17 | 01 | Air flow sensor error | RA | Air flow sensor (RA, SA) disconnection/short circuit/misconnection | |
|
| 02 |
| SA | or when the sensor value is in the error range | |
|
|
|
|
|
| |