Function Details ESIE15-13B
44 Function and Control
3.2.15 Discharge Pipe Temperature Protection Control
Electronic expansion valve opening degree and the compressor operating frequency will be
controlled in order to avoid abnormal high compressor temperatures.
Td: Discharge pipe temperature
Compressor Operating Frequency Control
Electronic Expansion Valve Opening Degree Control
Td: Compressor discharge pipe temperature (°C)
3.2.16 Capacitor Electric Discharge Control
After the operation stopped (the stop caused by the remote controller, an error, and the
compressor and outdoor unit fan motor when retry thermo. is off), open phase waveform is
output for about one minute for electric discharge of the capacitor.
Afterwards, electric discharge will continue due to discharge resistance until the capacitor
voltage becomes 0 V. At this time, operation sound may be heard from the outdoor unit.
RZQG71L RZQG100-140L
A°C 105°C 105°C
B°C 125°C 120°C
C minutes 15 minutes 15 minutes
Normal operation
•&
OR
•&
OR
OR
Td > 105°C
Compressor upper limit frequency
–1 step/20 sec.
Compressor upper limit frequency
+1 step/1 min.
Compressor upper limit frequency
RZQG71L: 12 steps
RZQG100-140L: 11 steps
Compressor stop
Abnormal stop (F3 indication)
10 times or less stopping in 200 minutes
Td ≤ 105°C
• Upper limit frequency
= Maximum frequency
• Td < 105°C
•Td ≤ 105°C
• 5 min. elapsed
•Td
< 70°C
•Td ≥ 110°C
continues for 5
minutes
•Td ≥ 110°C continues
for C minutes
•Td ≥ B
Stopped 11 times
in 200 minutes
•&
•Td
> A°C
OR
• Td < 70°C
Electronic expansion valve opening
degree lower limit
-5 pulses/Cooling for 2 minutes
Heating for 1 minute
Electronic expansion valve opening
degree lower limit
+5 pulses/Cooling for 2 minutes
Heating for 1 minute
Electronic expansion valve opening
degree lower limit
+10 pulses/Cooling for 2 minutes
Heating for 1 minute
Td 95°C
Td 90°C
Td 80°C
Td 100°C
Normal control
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