Re: A54 fridge circulation pump
Oliver Henrichsen, SV Vela Nautica
Hi guys,toggle quoted messageShow quoted text
Here is what we used:
I did reuse the flowjet pump and replaced the motor by a brushless scooter motor. These motors are very strong and got no wear parts except the ballbearings for less then 2 euros.
I mounted the motor on an L shaped 6mm aluminium and the pump from the oposite side.
The D shaped 8mm shaft is the same like the original flowjet shaft.
The motor is driven by 60% speed and works flawless while over sized. It takes less ten 1A at 24 V pushing 10 liter per min.
The motor does not get warm at all = no wasted energy, as before.
It would be possible to controll the wateroutput according to raw water temperature. I did not use this feature jet.
To drive a brushless motor, it needs a speedcontroller. I used the VESC for it, also way oversizedwhile capable to controll high currents.
We connect the 24v batterie directly to the VESC. No more using step down to 12 V wasting more energy.
The motor/pump speed is open to be controlled from 0 to 100%
€ 50,91 | ESK8 6368 BLDC outrunner bürstenlosen motor 190KV 280KV sensored sensorlose 22-48 V für elektrische balancing roller e- skateboard
D-shaped shaft 190 kv, shaft has 8mm diameter, sensored.
€ 55,36 36%OFF | FSESC 4,12 50A Basierend auf VESC 4,12 Elektro Speed Controller für Skateboard/E-roller Zubehör Flipsky
We use it now without any failing pump anymore.
Sent from my Huawei Mobile
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Subject: Re: [AmelYachtOwners] A54 fridge circulation pump
From: Sv Garulfo