6 VB Series Outdoor LS Manual
Temperature Controller
MC-91-1US & MCC-91-1US
The MC-91 controller is the standard temperature controller that is supplied with the water heater. On indoor
models it is integrated into the front panel. The MCC-91 controller is for commercial and hydronic applications
requiring higher temperatures. When the MCC-91 controller is connected, these higher temperatures are
available on all controller models in the system. Refer to the section on temperature ranges.
Dimensions (inches): 3.5 W x 4.75 H x 0.75 D
Temperature
Display
Priority
Indicator
Priority
Button
ON/OFF
Button
In Use
Indicator
Temperature
Selection
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