Daikin ATB03RA, Технические данные инструкция

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Databook Modular T - October 2022 - Rev. 00 19
Size 06
Supply Exhaust
Volume Flow rate ESP Volume Flow rate ESP
2700 100 2700 100
RPM RPM
2280 2284
Fan speed (High – Ultra High)
17(27)-4-02
Fan Curve Supply Fan Curve Return
19(29)-2-12 19(29)-3-10
Size 07
Supply Exhaust
Volume Flow rate ESP Volume Flow rate ESP
3900 100 3900 100
RPM RPM
2143 2155
Fan speed (High – Ultra High)
17(27)-4-02
Fan Curve Supply Fan Curve Return
19(29)-2-10 19(29)-3-08
4.11. Antifreeze Logic
4.11.1. Pro Version
This function is used to avoid plate heat exchanger freezing as it activates a sequence of actions to counteract
the risk of frost formation.
The antifreeze logic is activated whenever outdoor and exhaust temperatures fall below pre-set values and
pressure drop across the heat exchanger, monitored thanks to a pressure transducer, exceeds a pre-set
threshold for a specific time duration. Once the logic is active, the actions performed are the following:
Antifreeze
disabled
No action
Antifreeze
enabled
1) Bypass damper is gradually open up to 100% (only if heating coil present)
2) Supply airflow is gradually reduced and return airflow is gradually increased up to a
20% variation
3) Pre-heating coil is activated (if present)
4) Unit goes in alarm if the last action performed is not effective to exit freeze condition
in less than 30 min.
An auto-reset is performed after 1 hour, after which the unit starts again
automatically.