ESIE05-03Table of Contents iii3451Part 2Functional Description1 General Functionality1.1 What Is in This Chapter? ........................................................................ 2–31.2 Functions of Thermistors ........................................................................ 2–41.3 Forced Operating Mode (Emergency Operation).................................... 2–61.4 Outdoor Unit Identification Function........................................................ 2–81.5 Simulated Operation Function ................................................................ 2–91.6 Restart Standby ...................................................................................... 2–101.7 Automatic Restart ................................................................................... 2–111.8 Using Conditions for Remote Controller Thermostat .............................. 2–121.9 Forced Thermostat OFF ......................................................................... 2–141.10 Test Run Control .................................................................................... 2–151.11 4-way Valve Control ................................................................................ 2–161.12 Pump Down Residual Operation ............................................................ 2–171.13 Pump Down Operation ........................................................................... 2–181.14 Defrost Operation ................................................................................... 2–191.15 Freeze Prevention Function .................................................................... 2–221.16 PMV Control ........................................................................................... 2–231.17 Preheating Operation Control ................................................................. 2–241.18 Crankcase Heater Control ..................................................................... 2–252 Indoor Unit Functional Concept2.1 What Is in This Chapter? ........................................................................ 2–272.2 Thermostat Control ................................................................................ 2–282.3 Drain Pump Control ............................................................................... 2–292.4 Condensation Avoidance Control .......................................................... 2–312.5 Draft Avoidance Control 1....................................................................... 2–322.6 Draft Avoidance Control 2....................................................................... 2–332.7 Fan and Flap Operations ....................................................................... 2–342.8 Indoor Unit Fan Control .......................................................................... 2–353 Outdoor Unit Functional Concept3.1 What Is in This Chapter? ........................................................................ 2–373.2 Function Outline ...................................................................................... 2–383.3 Frequency Regulating Functions ........................................................... 2–413.4 Expansion Valve Regulating Functions ................................................. 2–583.5 Outdoor Unit Fan Speed Control ........................................................... 2–62