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