Drive Setting Mode; How To Set To Driving Mode; How To Turn Off Driving Mode; Compulsory Operation Mode - Sanden GAU-A45HPA Service Book

1-3-6 Drive Setting Mode

1) How to Change Mode
Press and hold down “"UP”" and “"DOWN”" keys together in the Clock Display Mode
to show the Block out Time Setting Mode. Press Enter key three times to switch to
the Drive Setting Mode. Once the mode has switched, the display shows either
“"d_on”" or “"d_oF”" which corresponds the current setting. Also, when the drive
setting is On Mode, LED is lighted in green.

2) How to Set to Driving Mode

Press “"UP”" key to change the setting to On Mode. By pressing the key, the
display turns to “"d_on”" and the LED turn on in green. The default setting when the
power is conducted should be “"d_on”".

3) How to Turn Off Driving Mode

Press “"DOWN”" key to change the setting to Off Mode. By pressing the key, the
display turns to ”"d_oF”" and the LED turns off. When the power is cut off, the Off
Mode setting will not be maintained and switched to the default setting “"d_on”".
4) How to Exit the Mode
Press and hold down “"Enter”" key to return to the Clock Display Mode. Also, it
automatically goes back to the Clock Display Mode when no panel operation is
performed for more than 60 seconds. Settings in the Drive Setting Mode can be
retained even after returning to the Clock Display Mode.

1-3-7 Compulsory Operation Mode

1) How to Change Mode
Press and hold down “"UP”" and “"DOWN”" keys together in the Clock Display Mode
to show the Block out Time Setting Mode. Press Enter key four times to switch to
the Compulsory Operation Mode. The display shows “"HPoF”" once the mode has
switched.
2) How to Start Compulsory Operation
Press “"UP”" key to start HP unit operation compulsorily. By pressing the key, the
display turns to ”"HPon”". The dot on the first digit of the7-segment LED display
turns on while in the compulsory HP unit operation. The dot is on also in the
Clock Display Mode.
3) How to Stop Compulsory Operation
Press “"DOWN”" key to stop the compulsory HP unit operation. By pressing the
key, the display turns to “"HPoF”".
4) How to Exit the Mode
Press and hold down “"Enter”" key to return to the Clock Display Mode. Also, it
automatically goes back to the Clock Display Mode when no panel operation is
performed for more than 60 seconds. The compulsory operation command can be
retained even after returning to the Clock Display Mode.
Sanden Heat Pump –– Service Technical Book
Page 44 of 48