Chiltrix CX45, Installation And Operation Manual

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8
Notes:
The example loop above has a volume of 4.5 gallons. The internal thermal expansion tank is
2 liters or .52 Gallons. An additional thermal expansion tank may be required. There are
many thermal expansion calculators on the internet, the following is an example.
http://westank.com/calculator/
Minimum loop pressure is 14.5 psi, maximum pressure is 43.5 psi, and ideal pressure is 29
psi.
The Lowest temperature is 44°F , the highest temperature is 131°F, the Initial pressure is
14.5 psi, and the final pressure is 29 psi.
An air scoop should be installed above the expansion tank to remove any air in the
circulation loop.
PEX Fittings Pressure Drops