6.Using the counter hold wrench to hold the fitting in place and the water hose fitting wrench to loosen the water hose (both wrenches included with your original MCS unit), disconnect the In and Out water hoses from the bottom heat exchanger unit.
7.Remove the magnetic solenoid valve ("Removing the magnetic solenoid valve" on page 82).
8.Using an 8 mm Allen wrench, remove the four socket screws securing the cover of the magnetic valve.
