VP D2-75 heating hot water where to tap in

[LoneHort]

Hi folks, Does anyone with a VP D2-75 have the coolant plumbed into to heat hot water and if so where are the hoses going to the hot tank connected to?
A picture or 2 would be great. I have the manual for the D2 series and it is different for the d2-55 and the D2-75 but I understood they were the same engine with the 75 having a turbo.
The manual says to "replace" a hose but for some reason I don't trust that!Thanks in advance!

 

[Boater Sam]

I don't know the engine but the turbo diagram is not what you need if you do not have a turbo.
Broadly speaking the flow to the calorifier needs to be from a high point in the engine preferably before the thermostat, like ly to be a tapping in the cylinder head, and the return to the inlet, suction, side of the engine cooling water pump.

 

[Leslie frank]

Yes. I did this last year with my d275. You have to change that one pipe for two. It is exactly right but the diagram looks a bit homemade so I didn't trust it at first either

 

[LoneHort]

Thanks folks, having looked at the engine last eve the manual is right. @Leslie frank can I ask did you put in a 3 way valve to shut off the external hose or did you just just plumb directly to the heat exchanger/ hot tank?

 

[Leslie frank]

I just plumbed straight into the tank. I thought the more joins the more chance of problems. I have kept the original pipe so I could quickly swap it back if there was a problem. My pipe runs are each about 1500mm if that's of any interest and my tank is lower than the bottom hose point.

 

[Leslie frank]

I did lose a fair bit of coolant when I took off the current pipe. Given how ludicrously expensive it is for volvo orange coolant I should have thought ahead and captured it for reuse