Daikin Super Multi Plus E-Series - Discharge Pipe Protection Control

SiEN18-622 Protection Control
Function 109
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]
In discharge pipe temp.
protection control
HTdi>115°C
Tp>135°C
HTdi :
Tp :
or
INV upper limit frequency:
36 Hz Unload
HTdi>115°C
Tp>135°C
or
HTdi>135°C
HTdi>120°C for 10 min. or more.
or
HTdi<110°C
Tp<125°C
&
After 30 sec.
After 20 sec.
HTdi>130°C
HTdi>120°C
or
HTdi<100°C
Tp<110°C
&
Discharge pipe
temperature standby
Value of INV compressor discharge pipe
temperature (Tdi) compensated with
outdoor air temperature
Value of compressor port temperature
calculated b
y Tc and Te, and suction
superheated degree.
INV upper limit frequency: 1-step up
from current compressor frequency
Discharge pipe protection
control not limited
1-step down from current
compressor frequency
for 90 sec.
or more.
When occurring 3 times within 100 minutes,
the malfunction code “F3” is output.