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www.aerex.de
Reco-Boxx ZXR / ZXA / Flat – Operation and maintenance instructions
[03/
2022 ]
9.10 Type 10: Drain pump alarm
• Conditions:
• Only for AEREX Flat- H / Flat OUT
• Causes:
• The level of condensate is higher than a set Setting (approx. 1.5 cm).
It can also be activated if the pump is not present or defective
• Effects:
Displayed on Touchpanel
Code
Text displayed
Level
R.10
Condensate tray full
3
TAC control board
ALARM OUTPUT
AL dPa OUTPUT
LED ALARM
Fans
Alarm Status
/
ON
Stopped if SERVICE STOP
FAN
Auto reset: yes
When activated, the supply and exhaust fans are stopped. This alarm is automatically reset when
the water level in the drain pan is lower than the setpoint, and the fans restart automatically.
9.11 Type 11: Alarm indicating failure on T
o
sensor T5
• Conditions:
• Only with post-heating, post-cooling or free cooling with heat wheel or modulating bypass option.
• Causes:
• T° sensor T5 located in the supply duct and connected to the TAC circuit is open, or short-circuit-
ed. This sensor is used to regulate the post-heating or post-cooling function in the case of com-
fort T° control on T5 or to control the high and low thresholds to limit the supply air temperature in
the case of comfort T° control on T2.
• Effects:
Displayed on Touchpanel
Code
Text displayed
Level
T.50
Sensor T5 disconnected
3
T.51
Sensor T5 short circuit
3
TAC control board
ALARM OUTPUT
AL dPa OUTPUT
LED ALARM
Fans
Alarm Status
/
ON
/
Manual reset mandatory.
