The installation of a MCC-91 controller allows a Rinnai LS Series water heater to heat water above it's standard maximum temperature of 140°F. The MCC-91 allows the R75LS to achieve a water temperature of 160°F, and the R94LS to reach 185°F.
Helpful Links and Documents About the Rinnai MCC-91-W
In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.