Sanden GAUS-315QT, Manual, Page: 17 / 28

Sanden Heat Pump – Installation Manual
Page 17 of 28
Maintenance Mode
Maintenance mode is a function to check the heat pump unit status and to check and
perform other settings. It should generally be assumed that the owner does not operate
this function. The following modes can be found in the maintenance mode.
Heat setting mode
Set the heating mode
Outlet water temperature setting mode
Set the Outlet hot water temperature 55
℃～
80
℃
(5
℃
step)
Block out time setting mode
Set the block out time
Interval setting mode
Set the interval heating cycle
Error history display mode
Check the history of any errors that may have occurred.
Parameter display mode
Check the values measured by the thermistor.
How to switch to Maintenance Mode
Press and hold down Up and Down keys together in the clock display mode to go to the
maintenance mode. After the mode is switched, press the Enter key to select a mode from
the six modes described above. To finish the maintenance mode, press and hold down
the Enter key, or leave for more than 60 seconds with no panel operation.
Figure 13 Maintenance mode diagram
Display Sleep Mode
Clock Display Mode
Clock Setting Mode
Outlet water Temp Setting Mode
Block out Time Setting Mode
Heat Setting Mode
Interval Setting Mode
Error History Display Mode
UP
UP
UP
UP
UP
UP
Any Key
Enter
Enter
or
No Operation
for 60sec.
No Operation
for 60sec.
Hold down
“
UP
”
and
“ DOWN ” together
Enter
or
No Operation
for 60sec.
Parameter Display Mode
“ DOWN ” is reverse
Enter
Enter
Enter
Enter
Enter
Enter