Connecting a calorifier to a Volvo 2002

[billcole]

Hi
I want to connect a calorifier to my fresh water cooled Volvo 2002, but I'm not sure where/how. Volvo list an accessory kit, but it looks to me as if it's for the raw water cooled version of the engine. Can anyone offer any advice, or details of a similar installation ?
Thanks
Bill

 

[jleaworthy]

You are right; there are different kits for fresh and raw water cooled versions for the 2002. The freshwater kit is volvo part number 858523-4. It allows the flow from the thermostat housing to pass through the calorifier before passing through the fresh/raw heat exchanger. It should be possible, if you want to, to rig that bit of plumbing yourself. Good luck.

 

[cliff]

Do a forum search on Calorifier - there are a number of detailed threads on the subject already.
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[Andrew_Fanner]

Lokking into this for an AD41 as SWMBO wants hot water not involving the kettle. As far as I can see its plumbed off the stat housing using the two hose connectors thereon. Is the connection more complex than a couple of bits of pipe (optional shutoff taps) to the calorifier?

 

[jleaworthy]

If you have a salt water cooled engine you interrupt the pipe leading aft from the thermostat housing and lead that hot water through calorifier and then back to exhaust mixer - not as simple as it sounds as you will be cutting into a pipe of exact length which is not positively fixed at either end! If you have a fresh water cooled engine that pipe is already interrupted to flow through the heat exchanger. You need to put the calorifier in that pipe between thermostat housing and heat exchanger.

 

[billcole]

Thanks for the replies. I'll check out that Volvo part number, as my engine doesn't seem to have any obvious existing take off points near the thermostat housing, just a short pipe going to the heat exchanger that I 'm a bit reluctant to cut and connect into.. Any further info or even pictures of an existing Volvo 2002 installation would still be welcome.
Bill

 

[billcole]

Thanks again to jleaworthy. I've ordered the Volvo kit, which is two hose connectors, one of which screws into the engine in place of a blanking plug just below the thermostat housing, and the other of which replaces another blanking pug in the body of the coolant pump to give the two hose connection points needed for the calorifier. Costs about £7 plus VAT in case anyone's interested.