SQFlex questions [RE-wrenches]

[Brad Bassett]

Allen,

Grundfos says that they are not to be used where GFI protection is 
required. I did have one customer try it for a pool fountain (one of the 
for sure places where a GFI is required) and the pump always tripped the 
GFI. 

As for the control problem, it is probably in the motor. The CU200 only 
reports what the motor is telling it. Even the on/off switch is only a 
command to the motor to stop. So the wires to the pump are still live 
when the switch is off! But, first make sure that the terminal block 
that the pump wires are connected to in the CU200 is solidly seated on 
the circuit board. This often comes loose if the wires pull on it and 
can make for an intermittent connection.

Brad Bassett
AEE Solar



> Brad Bassett of AEE has reported that the pump won't work through
> a
> GFCI - Brad, can you elaborate? And if I run it through AC from the
> inverter, is hardwiring the pump a simple, Code-compliant method of
> avoiding
> the GFCI in a damp location (the pump pit)?
> 
> Thank you,
> Allan at Positive Energy

> 


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