Daikin FTXM-V Series, Руководство по обслуживанию

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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