Si-95Table of Contents iInverter K SeriesSeries1. Introduction .............................................................................................v1.1 Safety Cautions ....................................................................................... v1.2 PREFACE................................................................................................ixPart1 General Information Inverter K Series ..............................11. Outline.....................................................................................................21.1 System Outline ........................................................................................ 21.2 Allowed Range of Indoor Unit and BS Unit Connection .......................... 3Part2 Functions Inverter K Series ...............................................51. Functions.................................................................................................61.1 Outdoor Unit Refrigerant Diagrams ......................................................... 61.2 List of Safety Devices and Functional Parts Setting Values.................... 91.3 Flow of Refrigerant in Each Operation Mode ........................................ 101.4 Outline of Control................................................................................... 151.5 Safety for Restart................................................................................... 171.6 Equalized Oil Level Operation(Equalized Oil Level between Twin Compressors)................................ 191.7 Oil Return Operation.............................................................................. 201.8 Defrost ................................................................................................... 211.9 Pressure Equalization Control ............................................................... 231.10 Frequency Limit Control by Pressure Equalization................................ 241.11 BS Changeover Control......................................................................... 251.12 Pump Down Residual Operation ........................................................... 261.13 Step Down / Safety Control → Standby (Forced Thermostat OFF) →Stop Due to Malfunction ........................................................................ 271.14 Low Noise Control ................................................................................. 291.15 Demand Control .................................................................................... 301.16 Compressor Capacity Control ............................................................... 311.17 Te / Tc Setting ....................................................................................... 321.18 Gas Depletion Alarm ............................................................................. 331.19 Drain Pump Control ............................................................................... 341.20 Louver Control for Preventing Ceiling Dirt ............................................. 361.21 Thermostat Sensor in Remote Controller .............................................. 371.22 Freeze Prevention ................................................................................. 39Part3 Test Operation Inverter K Series.....................................411. Test Operation ......................................................................................421.1 When Power is Turned On .................................................................... 421.2 Outdoor Unit PC Board Ass’y ................................................................ 431.3 Setting Modes........................................................................................ 451.4 Sequential Start ..................................................................................... 511.5 External Control Adaptor for Outdoor Units (DTA104A61 DTA104A62) 52Si-95TOC.fm Page i Tuesday, April 11, 2000 2:19 PM
