Chapter 5 Control - Mitsubishi Electric PUHY-HP200YNW-A Service Handbook

Chapter 5 Control
5-1 Dipswitch Functions and Factory Settings ........................................................................................ 1
5-1-1 Outdoor Unit Switch Functions and Factory Settings ............................................................................. 1
5-1-2 Indoor Unit Switch Functions and Factory Settings ................................................................................ 7
5-1-3 Remote Controller Switch Functions and Factory Settings..................................................................... 8
5-2 Outdoor Unit Control .......................................................................................................................... 10
5-2-1 Overview ............................................................................................................................................... 10
5-2-2 Rotation Control .................................................................................................................................... 10
5-2-3 Initial Control ......................................................................................................................................... 10
5-2-4 Startup Control...................................................................................................................................... 10
5-2-5 Refrigerant Bypass Control................................................................................................................... 11
5-2-6 Frequency Control ................................................................................................................................ 12
5-2-7 Defrost Operation Control ..................................................................................................................... 13
5-2-8 Refrigerant Recovery Control ............................................................................................................... 15
5-2-9 Outdoor Unit Fan Control...................................................................................................................... 16
5-2-10 Subcool Coil Control (Linear Expansion Valve <LEV1>) ...................................................................... 17
5-2-11 Refrigerant Flow Control (Linear Expansion Valves <LEV2a and LEV2b>) ......................................... 17
5-2-12 Control of Controller Cooling Function (Electronic Expansion Valve <LEV9>)..................................... 17
5-2-13 Injection Control (Linear Expansion Valve <LEV4>)............................................................................. 17
5-2-14 Control at Initial Startup ........................................................................................................................ 17
5-2-15 Emergency Operation Mode ................................................................................................................. 19
5-2-16 Operation Mode .................................................................................................................................... 21
5-2-17 Demand Control.................................................................................................................................... 21
5-2-18 Control of IH energization without the compressor in operation ........................................................... 21
GB_BS_05_L