Control Specification
SiUS042113E
72
Part 4 Functions and Control
3.13 Electronic Expansion Valve Control
Outline
The following items are included in the electronic expansion valve control.
Electronic expansion valve is fully closed
1. Electronic expansion valve is fully closed when turning on the power.
2. Pressure equalizing control
Open Control
1. Electronic expansion valve control when starting operation
2. Electronic expansion valve control when the frequency changes
3. Electronic expansion valve control for defrosting
4. Electronic expansion valve control when the discharge pipe temperature is abnormally high
5. Electronic expansion valve control when the discharge pipe thermistor is disconnected
Feedback Control
Target discharge pipe temperature control
Details
The followings are the examples of electronic expansion valve control for each operation mode.
R4003560
: Available
: Not available
Control
Stat
u
s
Starting operation control
Control when the freq
u
ency changes
Target discharge pipe temperat
u
re control
Discharge pipe thermistor disconnection control
High discharge pipe temperat
u
re control
Defrost control (heating only)
Press
u
re eq
u
alizing control
Opening limit control
Power on ; Compressor stop
Operation start
Freq
u
ency change
u
nder starting control
D
u
ring target discharge pipe temperat
u
re control
Freq
u
ency change
u
nder target discharge pipe
temperat
u
re control
Discharge pipe thermistor disconnection
Freq
u
ency change
u
nder discharge pipe thermistor
disconnection control
D
u
ring defrost control
Summary of Contents for FTXM-V Series
Page 16: ...SiUS042113E 12 Part 2 Specifications 1 Specifications 13 Part 2 Specifications...
Page 96: ...Troubleshooting SiUS042113E 92 Part 6 Service Diagnosis Reference Check No 01 Refer to P 134...
Page 150: ...Check SiUS042113E 146 Part 6 Service Diagnosis 18 24 class R24539 DC DC W V U...
Page 166: ...Piping Diagrams SiUS042113E 162 Part 8 Appendix RXM24VVJU 3D132217...
Page 171: ...SiUS042113E Operation Limit Part 8 Appendix 167 3 Operation Limit RXM09 12 18 24VVJU 3D133582A...