Sanyo SAP-K71GJHA Technical & Service Manual page 41

Heating
Room temperature control is obtained by cycling the compressor ON and OFF under control of the room
temperature sensor in the remote control unit.
The room temperature (and other information) is transmitted every 3 minutes by the remote control unit to the
controller in the indoor unit.
More than
5 minutes
T °C
set temp.
T–1 °C
T–2 °C
Compressor
Outdoor fan
Indoor fan
Standby lamp
Indoor heat exch.
coil temp.
34°C
*1
Solenoid coil
(4 – way valve)
Operation button
The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 5
minutes. To protect the compressor from stalling out when trying to start against the high side refrigerant
pressure, the control circuit has a built-in automatic time delay to allow the internal pressure to equalize.
As a protective measure, the control circuit switches the compressor OFF after 5 minutes or more of compressor
operation.
Thermo. ON : When the room temperature is below T – 1°C (T°C is set temperature).
Compressor
Thermo. OFF : When the room temperature is equal to or above set temperature T°C.
Compressor
NOTE
*1: Refer to "8-6 Cold Draft Prevention".
3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes
Thermo. Thermo.
ON OFF
5 minutes
OFF ON
OFF ON
30 seconds
Set speed
OFF
*1
OFF ON OFF
OFF
OFF
ON
OFF
Signal from remote control unit
Thermo.
ON
5 minutes
OFF
OFF
Max. 10minutes
LL
ON
ON Reversing cycle
i
ON
37
Room temp.
ON
ON
Set speed
OFF
OFF
j
Thermo.
OFF
OFF
OFF
30 seconds
LL
ON