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Piping Diagram
7-3 Functions (cont.)
7-3-2 Control (cont.)
7-3-2-6 Indoor unit control (cont.)
Thermo On/Off
▪ Purpose
Maintain the custom indoor temperature.
▪ Concept
Thermo is turned on or off through comparison between the indoor temperature and set temperature.
▪ Control specifications in detail
Cooling mode
- Thermo on:
Room temp. ≥ Set temp.
Room temp. ≥ Set temp.+1 K (RAC only)
- Thermo off:
Room temp. ≤ Set temp. -1 K
Room temp. ≤ Set temp (RAC only)
Heating mode
- Thermo on:
Room temp. ≤ Set temp. -1 K+ △ T*
- Thermo off:
Room temp. ≥ Set temp. + △ T
▪ Notes
- In case of cooling operation, if the indoor temperature is above the setting temperature, thermo becomes on and if it is
below the setting temperature, thermo becomes off.
- In case of heating operation, occupants' comfort shall be optimized by operating thermo on and off at the higher tempera-
ture than the setting temperature considering that high temperature tends to go up.
- In case of a normal indoor unit, heating offset value of 2 K is applied and this can be adjusted with the option code. Offset
value shall not be applied in case that users set up the room temperature using the cable remote control where the tem-
perature sensor is built in
Samsung Electronics
Tset
Tset – 1 K
Tset + △ T
Tset – 1 K + △ T
Cooling
Heating
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