GRUNDFOS INSTRUCTIONS
7.2 Start-Up Sequence.
Upon powering up the unit, the controller shall display the below for 3 seconds:
The screen will then show the software version of the unit for a further 3 seconds:
7.3 Main Operating Screen.
When the unit is operating normally and the status is healthy the display will include:
Status: OK / System 1 Pressure and value / Current Date and Current Time:
System 1 Pressure 1.5 Bar
With the PHT-T configuration, the display will also show System 2 Pressure and value:
System 1 Pressure 1.5 Bar
System 2 Pressure 2.0 Bar
If a fault condition is active, then the Status will show FAULT and the line below will carry a
message indicating the fault. If more than one fault exists then the first detected fault is shown
until cleared. The next fault is then displayed: