if you are using hot and cold water do you need 2 expansions or can you just use one and where would be best to put it. ive seen others just have one in the cold water side and not on the hot water. is this ok? thanks
Thank you for your question. You should always have an expansion tank on the hot side as without it you risk hot water spraying out of the PRV valve. This just needs to be fitted anywhere in the hot water line. On the cold water side (which is often referred to as an accumulator tank) it is optional. On older pumps it is recommended to have an Accumulator tank to reduce pulsing, however many of the modern pumps have built in bypass’s which then eliminates the need for an accumulator. If you know the model of your pump we will be happy to advise if it has the built in bypass or not. If we can be of any further assistance please don’t hesitate to contact us.
Thank you for your question. The 16mm hose tails are for the coil connections and yes 16mm is a common size for this. We can supply a suitable 16mm hose - www.asap-supplies.com/products/hot-water-hose-and-steam-hose-16mm-id-sold-per-metre-206016 If this doesn’t suit your application please let us know what size connectors you need and we might be able to supply adapters. If you have any further questions please don’t hesitate to contact us.
Hi David. Expansion tanks (used on the hot water side) need to be set above the maximum pressure of the pump but below the pressure of the pressure relief valve (PRV).
Jay ... Must take objection to your 'free hot water' statement - only applies if the diesel, gas or electricity used by the boat owner to heat the water was free in the first place !
@@jurgenpuype9275 yes this is mainly for motor yachts. Of course in modern times the difference between a motor yacht and a sailing boat is the sailing boat only has the engine on 90% of the time.
Can you please show how this is supposed to be wired for the internal immersion coil?
Roughly how long would you have to run the engine to heat say the 30 litre calorifier? Thanks
The connection tubes are 15 mm. And the connecting tube for the cold and hot water are smooth connection tubes and not sure how you can plumb to them
what stops from overheating the water to beyond boiling?
The engine coolant doesn't get that hot in the first place
if you are using hot and cold water do you need 2 expansions or can you just use one and where would be best to put it. ive seen others just have one in the cold water side and not on the hot water. is this ok? thanks
Thank you for your question. You should always have an expansion tank on the hot side as without it you risk hot water spraying out of the PRV valve. This just needs to be fitted anywhere in the hot water line.
On the cold water side (which is often referred to as an accumulator tank) it is optional. On older pumps it is recommended to have an Accumulator tank to reduce pulsing, however many of the modern pumps have built in bypass’s which then eliminates the need for an accumulator. If you know the model of your pump we will be happy to advise if it has the built in bypass or not.
If we can be of any further assistance please don’t hesitate to contact us.
Why is it 16mm on the calorifier hose tails, is that normal thing in plumbing?
Thank you for your question. The 16mm hose tails are for the coil connections and yes 16mm is a common size for this. We can supply a suitable 16mm hose - www.asap-supplies.com/products/hot-water-hose-and-steam-hose-16mm-id-sold-per-metre-206016 If this doesn’t suit your application please let us know what size connectors you need and we might be able to supply adapters.
If you have any further questions please don’t hesitate to contact us.
Hi! How much psi pressure should there be to the expansion tank with a 75ltr calorifier? Ta!
Hi David. Expansion tanks (used on the hot water side) need to be set above the maximum pressure of the pump but below the pressure of the pressure relief valve (PRV).
@@asapsupplies ok thanks!
I have a second smaller accumulator from my water tank! Would that make any changes to expansion tank (hot)?
Jay ...
Must take objection to your 'free hot water' statement - only applies if the diesel, gas or electricity used by the boat owner to heat the water was free in the first place !
I consider it free, I get hot water when I'm running my engine for other reasons, so it's free.
@@bobaquaplane1679 When sailing, I try to use my engine as little as possible. So just running it to get hot water isn't exactly free either.
Always one good grief!! Away and make some toast!
@@jurgenpuype9275 yes this is mainly for motor yachts.
Of course in modern times the difference between a motor yacht and a sailing boat is the sailing boat only has the engine on 90% of the time.