Samsung AM200FXWANR - Page 222

Piping Diagram
Samsung Electronics 221
Main heating operation
ƒ Purpose
Switch to cooling mode on some indoor units while using heating mode.
ƒ Control specifications in detail
7-3 Functions (cont.)
7-3-2-3 Normal operation modes (cont.)
7-3-2 Control (cont.)
Actuator Abbrev. - Normal Cooling
Compressor COMP
Operation
Target high pressure control
(default : 28kgf/ ᎚ )
Range 14 - 120Hz
Electronic Expansion Valve
– Main (Main EEV)
E_M
Oper
ation Target SH control
Range 125step ~ 2000step
Electronic Expansion Valve
– EVI (EVI EEV)
E_EVI
Operation Vapor injection control
Range 0-480step
Solenoid Valve - 4way V_4W Operation On
Solenoid
Valve – EVI Bypass V_EBOperation
On (Open): *T_w > 28ఁ or 50Hz ײ
Off (Close): T_w < 25ఁײ and 65Hz װ
Solenoid Valve – EVI V_EVI Operation On (Open)
Solenoid Valve – Hot Gas Bypass V_HG
Operation Off (Close)
Solenoid Valve – Accumulator Oil Return V_AR Operation On (Open)
Solenoid Valve – Hot Gas Bypass 2V_HG2 Operation Off(Close)
Solenoid Valve-Liq
uid Tube V_L Operation Off (Close)
Solenoid Valve – Main Cooling V_MC Operation Off (Close)
Solenoid Valve-Hot Gas ChargingV_HCOperation Off(Close)