Protection Control SiUS281811EA
120 Part 4 Functions and Control
4.3 Discharge Pipe Temperature Protection Control
This discharge pipe temperature protection control is used to protect the compressor internal
temperature against an error or transient increase of discharge pipe temperature.
HTdi: Value of inverter compressor discharge pipe temperature (Tdi) compensated with outdoor air
temperature
Tp: Value of compressor port temperature calculated by Tc, Te, and suction superheated degree.
•
HTdi > 115˚C (239˚F)
•
Tp > 135˚C (275˚F)
OR
36 Hz Unload
•
HTdi > 115˚C (239˚F)
•
Tp > 135˚C (275˚F)
OR
•
HTdi > 135˚C (275˚F)
•
HTdi > 120˚C (248˚F) for 10 minutes or more.
OR
•
HTdi < 110˚C (230˚F)
•
Tp < 125˚C (257˚F)
&
After 30 seconds
After 20 seconds
•
HTdi > 130˚C (266˚F)
•
HTdi > 120˚C (248˚F)
for 90 seconds
or more.
OR
•
HTdi < 100˚C (212˚F)
•
Tp < 110˚C (230˚F)
&
Discharge pipe
temperature standby
Discharge pipe protection
control not limited
Compressor upper limit
frequency: 1-step down from
current compressor frequency
In discharge pipe temp.
protection control
When occurring 3 times within 100 minutes,
the error code
F3
is output.
Compressor upper limit frequency: 1-step
up from current compressor frequency
To Next Page
Loading...
