Replace Controller Assembly
Replace controller assembly
Maintenance Mode
Please replace the controller assembly box.
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
Block out time setting mode
Set the block out time
Error history display mode
Check the history of any errors that may have occurred.
Parameter display mode
Check the values measured by the thermistor.
Air removing mode
Set the air removing mode
After PCB replace, Panel operation flow
How to switch to Maintenance Mode
Press and hold down Up and Down keys together in the clock display mode to go to the
Figure 15 Operation flow
maintenance mode. After the mode is switched, press the Enter key to select a mode from
the five modes described above. To finish the maintenance mode, press and hold down
Power OFF
Power OFF
the Enter key, or leave for more than 60 seconds with no panel operation.
Figure 13 Maintenance mode diagram
Location Time setting
Location Time setting
Display Sleep Mode
No Operation
Any Key
for 60sec
Clock Display Mode
Enter
No Operation
Clock Setting Mode
Preplace Controller
Country setting
Please select
"No2 USA"
Hold down "UP" and
Hold down "UP" and
"DOWN" together
"DOWN" together
Display Sleep Mode
Any Key
No Operation
for 60sec min.
Clock Display Mode
Hold Enter
hold down Enter
or
Enter
Enter
No Operation for
Enter
No Operation
or
or
60sec min.
No Operation
for 60sec
for 60sec min.
for 60sec
Clock Setting Mode
Sanden Heat Pump – Installation Manual
Sanden Heat Pump – Installation Manual
SANCO
Heat Pump – Installation Manual
2
Power ON
Replace Controller
Heat Setting Mode [H_SE]
Heat Setting Mode
Block out Time Setting Mode [bo ]
Outlet water Temp Setting Mode
Error History Display Mode [Err ]
Block out Time Setting Mode
Press and
Error History Display Mode
Parameter Display Mode [d_no]
or
Parameter Display Mode
AirBleedingMode[Air]
Air Removing Mode [Air ]
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Power ON
"DOWN" is reverse
"DOWN" is reverse
Enter
UP
Enter
UP
Enter
UP
Enter
UP
Enter
UP
Enter
Enter
UP
Enter
UP
Enter
Enter
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