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Sunil Rawat

"A320 Air Conditioning System: A Guide to ECAM COND Page"

The ECAM COND page contains all graphical symbols associated with the air conditioning system.

Airbus 320 Air Conditioning Page (COND Page)

Let us now look at all the parameters in details

NOTE: The YELLOW BOX is only for the purpose of highlighting.


1. Zone temperature

Each temperature value is displayed in green, when it is correctly transmitted by the SDAC.

Temperature value varies from -99 to 255 by step of 1°C.

A320 ECAM COND page : Zone Temperature Indication
 

When the information is not correctly received, the value is replaced by amber XX.

A320 ECAM COND page : Zone Temperature Indication Failure

2. Duct Temperature

The duct temperatures are displayed in green when their value is below 80 deg.C and correctly received from the SDAC.

A320 ECAM COND page : Duct Temperature Indication
 

The duct temperatures are displayed in amber when their value is above 80 deg.C and correctly received from the SDAC.

A320 ECAM COND page : High Duct Temperature Indication
 

The duct temperatures are replaced by amber XX when their value is not correctly received by the SDAC.

A320 ECAM COND page : Duct Temperature Indication Failure

3. Zone Trim Air Valve Position

The arrow is green while the scale is white.


The two letters, C for Cold (valve fully closed) and H for Hot (valve fully open) are white.


Each zone trim air valve position is displayed in green, when the information is correctly received from the SDAC.

A320 ECAM COND page : Zone Trim Air Valve Indication
 

When the position is not available the positions are replaced by amber XX.

A320 ECAM COND page : Zone Trim Air Valve Indication Failure

4. Pack Control Mode

No data is displayed when the Air Conditioning System Controller (ACSC) operates correctly and data from the SDAC is correctly received.

A320 ECAM COND page : Pack Control Mode Normal Indication
 

ALTN MODE is displayed in green when the ACSC is faulty.

A320 ECAM COND page : Pack Control Mode Alternate Indication
 

PACK REG is displayed in green when the ACSC is not valid and at least one SDAC is valid.

A320 ECAM COND page : Pack Control Mode Pack Regulation Indication

5. Cabin Recirculation Fan Status

The FAN indication is displayed in amber when the recirculation fan fault information is correctly received from the SDAC.


When this information is not available, or when the fan is not faulty, the indication is not displayed.

A320 ECAM COND page : Cabin Recirculation Fan Status Indication

6. Hot Air Shutoff Valve

Valve open and green

When the valve is fully open and its position agrees with the selected position: Open.

A320 ECAM COND page : Hot Air Shutoff Valve Normal Indication (OPEN)
 

Valve open and amber

When the valve is unusually open (the valve is open and this position disagrees with the selected position: Closed).

A320 ECAM COND page : Hot Air Shutoff Valve Failure Indication (OPEN)
 

Valve closed and green

When the valve is fully closed and its position agrees with the selected position: Closed.

A320 ECAM COND page : Hot Air Shutoff Valve Normal Indication (CLOSED)
 

Valve closed and amber when:

  • The valve is fully closed, or

  • On air conditioning panel 30VU the HOT AIR pushbutton switch is released (OFF legend on), or

  • There is no hot air flow

A320 ECAM COND page : Hot Air Shutoff Valve Failure Indication (CLOSED)
 

Valve status replaced by amber XX

When the valve status is not available from the SDAC and the Flight Warning Computer (FWC).

A320 ECAM COND page : Hot Air Shutoff Valve Failure Indication

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