SiENBE12-713
Main Functions
Function and Control
67
1.6
Automatic Operation
Automatic Cooling / Heating Function (Heat Pump Only)
When the AUTO mode is selected with the remote control, the microcomputer automatically
determines the operation mode from cooling and heating according to the room temperature
and setting temperature at the time of the operation startup, and automatically operates in that
mode.
The unit automatically switches the operation mode to cooling or heating to maintain the room
temperature at the main unit setting temperature.
Detailed
Explanation of
the Function
1. Remote control setting temperature is set as automatic cooling / heating setting temperature
(18 to 30°C).
2. Main unit setting temperature equals remote control setting temperature.
3. Operation ON / OFF point and mode switching point are as follows.
1
Heating
→
Cooling switching point:
Room temperature
≥
Main unit setting tempe2.5 deg.
2
Cooling
→
Heating switching point:
Room temperature < Main unit setting temperature –2.5 deg.
3
Thermostat ON / OFF point is the same as the ON / OFF point of cooling or heating
operation.
4. During initial operation
Room temperature
≥
Remote control setting temperature: Cooling operation
Room temperature < Remote control setting temperature: Heating operation
Ex: When the set point is 25°C
Cooling Operation
→
23°C: Thermostat OFF
→
22°C: Switch to Heating Operation
5. Heating Operation
→
26.5°C: Thermostat OFF
→
27.5°C: Switch to Cooling Operation
(R6
8
42)
S
e2.5ºC
He
a
ting Oper
a
tion
S
etpoint –2.5ºC
Cooling Oper
a
tion
S
etpoint –2.0ºC
=Thermo
s
t
a
t OFF
S
e1.5ºC
=Thermo
s
t
a
t OFF
Summary of Contents for FTKS20D3VMW
Page 11: ...Introduction SiENBE12 713 x...
Page 47: ...Specifications SiENBE12 713 36 Specifications...
Page 113: ...Control Specification SiENBE12 713 102 Function and Control...
Page 235: ...Instruction SiENBE12 713 224 System Configuration...
Page 297: ...Check SiENBE12 713 286 Service Diagnosis...
Page 316: ...SiENBE12 713 Outdoor Unit Removal Procedure 305 Step Procedure Points...