Hitachi RAS-5182CH Service Seite 64

6. Temporary Switch Circuit
5V SV
Micro computer
( )
Temporary jf
switch «©
_ OV OV
¢ The fomporery : switch | is used when the wireless remote controller is lost:or troubled.
e Last operation mode and last set temperature are selected or, once the power switch is turned off, an automatic
operation is selected.
7. Service Operation Circuit
Consitent spacing
To DC Fan
motor P.W.B.
IC601
Analogue
switch
Service Switch
Power Micro computer
Relay
q)
40)
@)
* Use the service switch to select "Cooling" temporarily when the interior electric equipment has troubled.
¢ Setting the switch to "Cooling" causes continuous cooling room temperature contro! to contro! the room
temperature, turn on and off the disconnect switch. To protect the compressor, wait at least 3 minutes before
turning on again.
The fan speed is "MED"
Does not operate 12V is not generated in the control circuit.
When the service switch is used for operation, each change switch is overridden.
Setting the service switch to "Cooling" turns on the "Stick relay', "Power relay" and "Analogue-switch" pin @.
- 68 -