HP 403349-003 - Manual (Page 130)

Upgrading procedures 130
6. Using a T-25 Torx driver, install four screws to secure the faceplate.
NOTE: Do not overtighten the fittings. The gasket needs only a slight compression to seal the
fitting.
7. Using a small pipe wrench, tighten the fitting that connects the HEX unit copper pipe to the ball
valve.