[RE-wrenches] Apricus SHW Charging

[Carl Adams]

I am reviewing the commissioning instructions for the Apricus solar
DHW system.  I note that the specified charging pressure for the
glycol loop is 72.5 psi per the manual.  This seems high compared to
other systems I have experience with.  Can anyone comment on
1) The science behind the high system charging pressure and
2) an off the shelf pump you use to achieve these pressures

With Regards
Carl Adams
NABCEP Certified Solar PV Installer
NABCEP Certified Solar Thermal Installer
SunRock Solar
Cincinnati, Ohio
www.sunrocksolar.com