Daikin FFQ25B7V1B - Page 162

Functional concept ESIE05-04
2–24 Part 2 – Functional Description
3
1
2
4
5
At compressor
startup
Q In cooling: The indoor fan is operated at low speed until the low-pressure value reaches 6 bar.
Q In heating: Hot startup controlWhen performing a startup, or after the defrosting cycle has been
completed, the indoor fan will be controlled as to prevent cold air draft and secure the starting
performance (quick pressure build-up).
Indoor unit fan: OFF
Heating operation is turend on with remote controller.
Indoor unit fan: LL tap
Condition A is met.
Indoor unit fan: L tap
Condition B is met.
Indoor unit fan: M tap (Continuing L tap on indoor unit without M tap equipped)
Condition C is met.
Indoor unit fan: Set fan speed
Condition A Condition B Condition C
Indoor unit h/e temp > 34°C O O O
Indoor unit h/e temp > indoor suction air temp
+17°C (+12°C if outside temperature is < 5°C)
O O ---
Indoor unit h/e temp > indoor suction air temp
+22°C (+20°C if outside temperature is < 5°C)
--- --- O
3 minutes elapsed after compressor startup O --- ---
5.5 minutes elapsed after compressor startup --- O ---
10.5 minutes elapsed after compressor startup --- --- O