Automatic Control For Heating And Cooling - Sanyo SPW-C0705DZH8 Technical Data Manual

1. Main Operating Functions

1-2. Automatic Control for Heating and Cooling

Automatic Heating/Cooling Control
(1) When operation starts, heating or cooling is selected according to the set temperature and the room temperature.
Room temperature
Set temperature – 1 < Room temperature
Room temperature < Set temperature – 1
*1: If the difference between the room temperature and set temperature is small when operation starts, the cooling
thermostat remains in standby status (OFF) until the temperature difference increases. When the temperature differ-
ence increases, either cooling operation or heating operation is selected. This standby status is known as "monitoring
mode."
(2) After operation starts in the selected operating mode, the set temperature is automatically shifted by +2°C (cooling opera-
tion) or –2°C (heating operation).
Example: Temperature set on the remote controller is 20°C.
Selected operating mode
1 Cooling
2 Heating
(3) Operating mode changes (heating
changes are handled as shown below.
Heating cooling: Room temperature
Cooling heating: Room temperature
Example: Temperature set on the remote controller is 20°C.
1
Operating mode change
1 Heating
2 Cooling
*2: During heating operation when the body sensor is used, a temperature shift is applied to the intake temperature
2
detected by the sensor, in consideration of the difference in temperature at the top and bottom of the room. (Refer
to the "Room Temperature Control" item.) If this intake shift temperature is 4°C, then the heating
occurs when the temperature detected by the body sensor is 26.5°C or higher.
(4) Cooling (heating) operation does not change if the room temperature changes from area C
minutes after the compressor turns OFF. (Monitoring mode is excepted.)
(5) When the heating/cooling change occurs, the 4-way valve switches approximately 30 to 50 seconds after the compressor
3
turns ON.
4
5
6
7
8
Set temperature + 1
Shifted set temp.
22°C
18°C
cooling, cooling
Shifted set temperature (set temperature + 2°C) + 0.5°C
Shifted set temperature (set temperature – 2°C) – 1.0°C
Shifted set temp.
Cooling 20 + 2 + 0.5 = 22.5°C or higher (*2)
Heating 20 – 2 – 1.0 = 17°C or lower
Selected operating mode
Remote controller display
Selected operating mode
Cooling
Set temperature + 1 Monitoring mode (*1)
Heating
Remote controller display
20°C
20°C
heating) which occur during operation as a result of temperature
A
+3 deg
+2.5 deg
Shifted set temp
+2 deg
+1 deg
B
–1 deg
Shifted set temp
–2 deg
–3 deg
C
Thermostat
3-4
Control of 3-WAY ECO-i SYSTEM
A (or A
ON OFF
ON OFF ON OFF ON
Heating Cooling
cooling change
C) within 10
OFF ON OFF ON
Heating