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Posted by HeatPro on April 24, 2007 at 16:43:53:
In Reply to: expansion tank and pressure reducing valve - avoiding the same problems posted by john on April 22, 2007 at 10:11:01:
: (1) is there a need for an expansion tank? If so, where to install it?
Install the expansion tank in the place on the Installation and Operation manual drawings where Takagi shows them. They didn't draw that for artistic merit; but to keep you away from this trouble, as did Amtrol in THEIR drawings.
: (2) is there a need for pressure reducing valve. The city pressure is about 40 psi at the main control valve of the house.
No ... 40 psig is usually the pressure in city-water houses.
: Thanks in advance for your help