Daikin RZQ125B7W1B [87/326] Part 2

ESIE05-03 General Functionality

Part 2 – Functional Description 2–3

Part 2

1 General Functionality

1.1 What Is in This Chapter?

Introduction This chapter will explain all functions not related to the compressor frequency control, outdoor unit fan

control and expansion valve control. These functions have been programmed to ensure the unit's

reliability and lifetime, enable the operation in case of malfunction, or increase the customer's comfort.

Overview This chapter contains the following topics:

Topic See page

1.2–Functions of Thermistors 2–4

1.3–Forced Operating Mode (Emergency Operation) 2–6

1.4–Outdoor Unit Identification Function 2–8

1.5–Simulated Operation Function 2–9

1.6–Restart Standby 2–10

1.7–Automatic Restart 2–11

1.8–Using Conditions for Remote Controller Thermostat 2–12

1.9–Forced Thermostat OFF 2–14

1.10–Test Run Control 2–15

1.11–4-way Valve Control 2–16

1.12–Pump Down Residual Operation 2–17

1.13–Pump Down Operation 2–18

1.14–Defrost Operation 2–19

1.15–Freeze Prevention Function 2–22

1.16–PMV Control 2–23

1.17–Preheating Operation Control 2–24

1.18–Crankcase Heater Control 2–25

ESIE05-03.book Page 3 Wednesday, April 6, 2005 4:09 PM