Daikin RZQ140B7W1B [125/326] Frequency regulating functions

ESIE05-03 Outdoor Unit Functional Concept

Part 2 – Functional Description 2–41

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 2–42

3.3.2–General Frequency Control 2–45

3.3.3–Low Pressure Protection Control (RZQ71) 2–47

3.3.4–High Pressure Protection Control 2–49

3.3.5–Discharge Pipe Temperature Control 2–50

3.3.6–Suction Pipe Superheat Protection Control (Heating Mode) 2–51

3.3.7–Inverter Current Protection Control 2–52

3.3.8–Input Current Control 2–53

3.3.9–Inverter Cooling Fin Temperature Control 2–54

3.3.10–Pressure Difference Control 2–55

3.3.11–Oil Recovery Operation 2–57

ESIE05-03.book Page 41 Wednesday, April 6, 2005 4:09 PM