Daikin RZQ71~125B7V3B, Service Manual

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ESIE04-01 Outdoor Unit Functional Concept
Part 2 – Functional Description 2–39
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2
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5
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3.3 Frequency Regulating Functions
Introduction One of the main functions of the
µ
-controller will be the control of the compressor frequency. The next
chapter will explain how the compressor frequency is determined.
Content
Topic See page
3.3.1–Starting Frequency Control 2–40
3.3.2–General Frequency Control 2–43
3.3.3–Low Pressure Protection Control 2–45
3.3.4–High Pressure Protection Control 2–46
3.3.5–Discharge Pipe Temperature Control 2–47
3.3.6–Suction Pipe Superheat Protection Control (Heating Mode) 2–48
3.3.7–Inverter Current Protection Control 2–49
3.3.8–Input Current Control 2–50
3.3.9–Inverter Cooling Fin Temperature Control 2–51
3.3.10–Pressure Difference Control 2–52
3.3.11–Oil Recovery Operation 2–54
RZQ - Final.book Page 39 Wednesday, September 8, 2004 8:40 AM