Daikin EWAQ021BAW - Discharge Pipe Protection Control; INV Compressor; STD Compressor

ESIE11-05 Protection Control
Functional Description 55
4.3 Discharge Pipe Protection Control
This discharge pipe protection control is used to protect the compressor internal temperature
against a malfunction or transient increase of discharge pipe temperature.
[INV compressor]
[STD compressor]
In discharge pipe temp.
protection control
HTdi>115°C
HTdi : Value of INV compressor discharge pipe
temperature (Tdi) compensated with
outdoor air temperature
Normal operation
Unload inverter
Other models:
INV62 Hz + OFF + OFF
HTdi>115°C
HTdi>135°C
HTdi>120°C for 10 min. or more.
or
HTdi>130°C
HTdi>120°C
Time laps
or
HTdi<100°C
When occurring 3 times within 100 minutes,
the malfunction code “F3” is output.
Discharge pipe
temperature standby (for
a period of 10 minutes)
• HTds>120°C continues for 5 min. or more.
• HTds>135°C
or
Applicable STD
compressor stops.
After 10 min.
Discharge pipe temp.
protection control not limited
HTds : Value of STD compressor discharge
pipe temperature ( Tds) compensated
with outdoor air temperature