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Plumberpro
Plumberpro, Mechanical Engineer
Category: HVAC
Satisfied Customers: 634
Experience:  Over 20 years experience in plumbing heating and gas
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I am replacing old watermill shower pump with a grundfos str

Resolved Question:

I am replacing old watermill shower pump with a grundfos str 1.5c. The inlet and outlet connections are the same but the wiring is different. The old is 2 core to a transformer, the new is twin and earth. Do I use the transformer or do I bypass straight to fused switch?
Submitted: 2 years ago.
Category: HVAC
Expert:  Plumberpro replied 2 years ago.
Plumberpro :

Hi , if the grundfs is 240 volts , bypass straight to the fused spur

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