Samsung AM080FX A Series - Page 361

Piping Diagram
Samsung Electronics 380
Expand operational temperature range for cooling
Channel address
▪ Purpose
Extend the low temperature operation range for HR units to -15℃ .
▪ Concept
- The cooling operation range is extended by controlling purpose-specific valves on HR units.
- HR Only
▪ Control specifications in detail
- If it is difficult to secure outdoor high pressure while in cooling mode in an outdoor location with a low temperature,
formation of high pressure is facilitated by controlling the low pressure decrease, Solenoid valve
- Main EEV, and Solenoid valve
- Hot gas bypass.
▪ Purpose
Identify multiple main outdoor units connected to upper-level controllers, such as DMS and S-NET3.
▪ Concept
- If the Channel address is set, the same channel address is assigned to the sub outdoor units, indoor units,
and MCUs connected to a main outdoor unit.
▪ Control specifications in detail
▪ Notes
- Continuous cooling operation is possible even in low temperature condition up to -15℃ ,
but noise of the MCU will increase.
- This option is only for HR unit.
Input unit Seg1 Seg2 Seg3 Seg4
Expand operational temperature range for
cooling operation (HR only)
Main 1 2
0 0 Disabled (default)
0 1 Enabled
Input unit Seg1 Seg2 Seg3 Seg4 Channel address
Main 1 3
A U Automatic setting (default)
0~15
Manual setting for channel
0 - 15
7-3 Functions (cont.)
7-3-3-1 Field Setting (cont.)
7-3-3 Others (cont.)