Samsung AM072BXV Series Service Manual page 267

Piping Diagram
7-3 Functions (cont.)
7-3-2 Control (cont.)
7-3-2-6 Indoor unit control
Operation modes
▪ Purpose
Classify operation modes to provide optimum performance to satisfy different user preferences.
▪ Concept
Cooling, heating, dehumidifying, and fan modes are provided, allowing users to control the indoor temperature and humid-
ity. Operation modes can be switched either automatically or manually. Defrost and oil return modes are also available.
These modes are used to maintain system performance.
▪ Control specifications in detail
- How to turn on a mode : Select a mode via user input
- User input options: remote control, key options, Wi-Fi kit, centralized control, and external contact
- Available modes: Auto / Cooling / Heating / Dry / Fan / Defrost / Oil Recovery / Turbo
Fan speed, EEV regulating method, and set temperature range for each operation mode are shown below.
Mode
Auto
Cooling
Dry
Heating
Turbo
Fan
Defrost
Oil recovery
1) The fan speed is adjusted based on the difference (ΔT) between the set temperature (Ts) and indoor temperature (Ti).
|Ts - Ti| ≤ 1 K
Low
2) The fan speed is automatically adjusted as shown below, irrespective of inputs on the remote control.
Samsung Electronics
Fan speed
Fixed
Auto1)
User input
Low, Mid, High, Auto
Fixed
Auto2)
User input
Low, Mid, High, Auto
Fixed
High, Turbo
User input
Low, Mid, High
Stop
User input
Low, Mid, High, Auto
Relay fan
Low
EEV
Control
Control
Control
Control
Control
Fixed
(Close)
Fixed
(Open)
Control
1 K < |Ts - Ti| ≤ 3 K
Mid
Set temp Remark
18-30℃ User selection
User selection
18-30℃
Min.16℃ for RAC
User selection
18-30℃
Min.16℃ for RAC
16-30℃ User selection
Operating for 30mins
Unable
then return to previous
- User selection
- System
- System
3 K < |Ts - Ti|
High
Other fans
Low Low
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