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Old 01-24-2008, 10:54 AM
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vstech vstech is offline
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
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nope, just flow isolated. and only on one side. the return side is open. plus there are bypass passages in the thermostat as well. pressurize away, entire system will have equal pressure.
how are you going to get the air out of the heat exchange? you really need vents and flow, not pressure to get the air out.
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