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SiBE041102_A
Control Specification
Function and Control
31
3.11 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 equalization 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
1. Target discharge pipe temperature control
Detail
The followings are the examples of control which function in each mode by the electronic
expansion valve control.
h
: Holding Functions
−
: No Functions
Under defrost control
Cooling
Starting control
−
h
−
−
−
−
−
−
Control when the frequency changes
−
−
h
−
h
−
−
−
Target discharge pipe temperature control
−
−
−
h
−
−
−
−
−
−
−
−
−
h
h
−
High discharge pipe temperature control
−
h
h
h
h
h
h
h
h
h
−
−
−
Pressure equalizing control
h
−
−
−
−
−
−
−
Opening limit control
−
h
−
Heating
Starting control
−
h
−
−
−
−
−
−
Control when the frequency changes
−
−
h
−
h
−
−
−
Target discharge pipe temperature control
−
−
−
h
−
−
−
−
−
−
−
−
−
h
h
−
High discharge pipe temperature control
−
h
h
h
h
−
−
−
Defrost control
−
−
−
−
−
−
−
h
Pressure equalizing control
h
−
−
−
−
−
−
−
Opening limit control
−
h
h
h
h
h
h
−
Control for disconnection of the discharge
pipe thermistor
When the power turns on or when the compressor
stops
When the frequency changes under target discharge
pipe temperature control
When the disconnection of the discharge pipe
thermistor is ascertained
When the frequency changes under the control for
disconnection of the discharge pipe thermistor
During target discharge pipe temperature control
When the frequency changes under starting control
When the operation starts
Control for disconnection of the discharge
pipe thermistor
Содержание FTXN25KEV1B
Страница 11: ...SiBE041102_A List of Functions 1 Part 1 List of Functions 1 Functions 2...
Страница 13: ...SiBE041102_A Specifications 3 Part 2 Specifications 1 Specifications 4...
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Страница 157: ...Revision History Month Year Version Revised contents 03 2011 SiBE041102 06 2011 SiBE041102_A Review of contents...