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Heater water flow direction


landriopa

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I am installing a Vintage Air a/c system.  The instructions state that their heater valve will only work properly if installed with the correct water flow direction.  Therefore which is the output flow from the water pump, the connection next to the passenger side head, or the connection that goes straight up out of the water pump manifold? 

Thank you all again for all the assistance that you give the rest of us.

Avanti heater connections.jpg

Okay, since no one has replied, here is how I am trying to figure this out:

The fan when looking from the front turns clockwise.  The pump should be pulling coolant from the radiator through the hose on the lower art of the radiator and pushing it into the engine and heater core.  Those connections are on the top of the water manifold.  The result is that I probably had the flow backwards into the heater control valve of the Vintage Air unit.  Am I looking at this correctly?

Edited by landriopa
a fresh look at the problem
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