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Originally Posted by RaptorRaider
This is confusing me a little bit.
At 60Hz the head and flow is larger, yet according to Iwaki's PDF the amount of heat dumped into the water stays the same.
So the 60Hz version should definately perform better, right? :shrug:
I'll be testing a few pumps myself soon, and I don't want to make mistakes.
EDIT:
Unless of course by output they mean the amount of heat transferred to the air? 
If that is the case then the amount of heat dumped into a loop by the 30RZ is very low; that's very unlikely.
I guess their numbers are just way off... |
afaik motor
input is the power draw (higher at 60hz due to the higher motor speed) - if you look back on page 1 cathar has a 30RZ at 50hz dumping 50W into the loop (this was obtained from experiment iirc as that's the pump cathar used to have, on his 50hz aussie mains.)
so assuming the same % of input transmitted to the water that'd give about 64W at 60hz...
not sure what output is in the PDF?