Piping Diagram
Samsung Electronics
235
Cooling operation
▪
Purpose
Enable cooling in the entire target space.
▪
Control specifications in detail
-
Condition(s) required to enter Quick Start mode: [ A & B ]
Actuator
Abbrev.
-
Normal Cooling
Compressor
COMP
Operation
Target low pressure control
(default : 8kgf/cm2,g)
Range
14~140Hz
Outdoor Fan Motor
OFM
Operation
Target high pressure control
(default : 25kgf/cm2,g)
Range
0-39step (0-1300rpm)
Electronic Expansion Valve
– Main (Main EEV)
E_M
Operation
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_EB
Operation
On (Open): *T_a > 38
℃
or 50Hz
↓
Off (Close): T_a < 36
℃↓
and 70Hz
↑
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 2 (HR Only)
V_HG2
Operation
On (Open)
Solenoid Valve – Main EEV (HR Only)
V_ME
Operation
On (Open)
Solenoid Valve – Main Cooling (HR Only)
V_MC
Operation
Off (Close)
7-3 Functions (cont.)
7-3-2-3 Normal operation modes
7-3-2 Control (cont.)
