The four digit LED will display various operating information as described below. Press and release the up arrow to view this data.
Operating Mode and Outlet Water Temperature - Operating Mode - Indicates the current operating mode of the system followed by the outlet water temperature.
C = Off-Peak (Charge) Time
P = On-Peak (Control) Time
A = Anticipated Peak Time
Outdoor Temperature - -“O” followed by a number indicates current outdoor temperature.
Heat Call Status - Indicates the current heat call status as determined by the room thermostat(s). The faceplate displays the highest heat call value present. If receiving a Stage 1 Forced Air Heat Call and a Hydronic Heat Call, the display will read “HC_3”.
NOTE: A bar illuminates on the lower portion of the display’s third digit whenever one or more heating elements are energized.
Brick Core Charge Level - “CL” (charge level) followed by a number indicates the current percentage of heat stored in the brick core. “CL:_” indicates the core is below minimum charge level and “CL: F” represents a full core charge level.
Targeted Brick Core Charge Level - “tL” (target level) followed by a number indicates the current percentage of brick core charge being targeted by the system. A display of “tL:_” indicates charging is not allowed and “tL: F” indicates a full core charge target level.