Bristolman
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Discuss I want to install a Solar IBoost+ on my Megaflow 300I cylinder, is it possible? in the DIY Electrical Advice area at ElectriciansForums.net
Hi SeanI would also like to do this on my old one immersion indirect megaflo. Don’t want to have to fork out £2,000 for the new eco mega flo which uses a solar iboost on the model. Bristol man if you find out anything please let me know.
Hi Bristol manHi Sean
I just did it, Found a diagram showing the immersion, it had two cables going under the plastic cover, one went into the immersion and the other went into a sensor, so I cut the wire that went into the immersion and connected it to the iboost, and turned up the temp. Seems to be working fine
It turns the iboost off and reads “water tank hot”Hi Bristol man
Thanks for replying. It would be great if you could post a photo of this or the diagram you found. I can do minor electrical work, but I feel a bit unconfident messing around with the mega flo.
Few questions which would be great if you could answer them:
- I only have a small solar pv array of 2.4kw so don’t expect more than 15-20kw generated on a really sunny day. However would there be a possibility of the mega flo overheating? I assume the sensor switch or thermostat in the megaflo will stop electricity being drawn from the iboost if the panels are still generating surplus and the mega flo has met desired temperature.
No I leave it on, I just turned the thermostat up on the megaflow.
- Have you turned your gas boiler hot water setting off? I assume you leave it on as it ensures the whole water storage in the mega flo stays hot even on less sunny days.
Just stripped the wires and pushed into the iboost terminals
- Did you just put terminal connector ends on the cable that you cut going into the immersion?
The attached file shows the immersion on mine, the right hand cable is the one that goes straight to the immersion, this is the one I cut and put into the iboostThanks
Sean
It turns the iboost off and reads “water tank hot”
No I leave it on, I just turned the thermostat up on the megaflow.
Just stripped the wires and pushed into the iboost terminals
The attached file shows the immersion on mine, the right hand cable is the one that goes straight to the immersion, this is the one I cut and put into the iboost
Hi Bristolman and others! I eventually went and compared the electrics on my very old Heatrae Sadia megaflow (model CL210) and they’re not like yours. Very simple wiring. The top photo has electric cable connected to the temperature control and I assume calls for the gas boiler for more hot water. The bottom photo is the element. Strangely this is not wired. If I connected the solar diverter to this would it work? I assume from looking at web photos of these that the thermostat is part of this so if I had it wired, the thermostat would not overheat.Hi
I want to install a Solar IBoost+ on my Megaflow 300I cylinder, is it possible on this cylinder?
Yes it should. The immersion heater looks as if it has never been used!If I connected the solar diverter to this would it work?
Yes the immersion has the adjustable thermostat for you to set the temperature you want, and there will also be an over-temperature cutout as well.I assume from looking at web photos of these that the thermostat is part of this so if I had it wired, the thermostat would not overheat.
Thanks Avo….feel reassured enough to give it a go! I also have the coverYes it should. The immersion heater looks as if it has never been used!
Do you have the cover for it? It won't be safe to leave it wired up and live without the cover.
Yes the immersion has the adjustable thermostat for you to set the temperature you want, and there will also be an over-temperature cutout as well.
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