The MC-91-2W (white exterior color) and MC-91-2S (silver exterior color) controller are perfect for controlling an exterior, outside Rinnai tankless water heater from the inside comfort of your home. They also allow your Rinnai tankless water heater to heat up water above the maximum standard temperature of 140°F. It lets the R75LS heat water to a maximum of 160°F, and the R94LS to 185°F.
• 98°F to 140°F temperature control
• Moisture resistant plastic case
• In-use indicator
• Use up to four touch pads with every Rinnai unit
• On board safety monitoring and diagnostics
• On/off and priority switches
• Dimensions: 1" x 4" x 2"
MCC-91-1W was an older item number for this same MC-91-2W item.
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