Samsung AM200FXWANR - Page 216

Piping Diagram
Samsung Electronics 215
Cooling operation
ƒ Purpose
Enable cooling in the entire target space.
ƒ Control specifications in detail
- Condition(s) required to enter Quick Start mode: [ A & B ]
ƒ Refrigerant Flow
Heat pump
Actuator Abbrev. - Normal Cooling
Compressor COMP
Operation
Target low pressure control
(default : 8kgf/cm2,g)
Range 14~120Hz
Electronic Expansion Valve
– Main (Main EEV)
E_M
Oper
ation Full Open
Range 2000step
Electronic Expansion Valve
– EVI (EVI EEV)
E_EVI
Operation
*Subcooling control
(default: SC 20 K)
Range 0-480step
Solenoid Valve - 4way V_4W Operation Off
Solenoid Valve
– EVI Bypass V_EBOperation
On (Open): *T_w > 40ఁ or 50Hz ײ
Off (Close): T_w < 38ఁײ and 65Hz װ
Solenoid Valve – EVI V_EVI Operation On (Open)
Solenoid Valve – Hot Gas Bypass V_HG Opera
tion Off (Close)
Solenoid Valve – Accumulator Oil Return V_AR Operation On (Open)
Solenoid Valve – Hot Gas Bypass 2V_HG2 Operation Main Cooling : On(Open), Cooling : Off(Cl
ose)
Solenoid Valve-Liquid Tube V_L Operation Off (Close)
Solenoid Valve – Main Cooling V_MC Operation Off (Close)
Solenoid Valve-Hot Gas ChargingV_HCOperation Off(Clos
e) / On(Open) when high pressure is low
7-3 Functions (cont.)
7-3-2-3 Normal operation modes
7-3-2 Control (cont.)