Trinity │Installation and Operation Instructions Ti Series44Setting the Sentry 2100Programming is accomplished by a series of three push buttons located on the bottom side of the control. (Function, and). Toenter the programming mode, press the function key once. To scroll through the various menu options depress until the desiredmenu item is displayed. To alter the value press Function once, and the current value will be displayed, then use for up, andfor down, until the desired value is obtained. To enter the selected value press Function, which will return to the menu. When alldesired values are selected, scroll to the RUN menu, and press Function, which exits the Programming Mode and initiates normaloperation.Sentry 2100 MenuTable 12-3 Sentry 2100 Program MenuMenuItemSettableRangeDescription Typical SettingsRUNProgram Mode - When Run is displayed, controller isin ‘Prog’ mode. Arrow up or down to scroll throughmenu items.NALO 80-190ºFDHW Set Point – Boiler temperature the controlattempts to maintain during a domestic hot water call(A-C circuit closed).160ºFHI 80-200ºFCentral Heating Set Point – Boiler temperature thecontrol attempts to maintain during a heating call (T-Ccircuit closed). Note: the domestic call takes priorityover the heating call.140-160ºF (Fan Coil)170-190ºF (Baseboard)100-120ºF (Low temperatureInfloor)DIF 1-40Differential Setting - Applies only to a heating call.Temperature difference below set point at which burnerwill re-light.20RES 70-HISets Outdoor Reset Curve Slope – The temperaturewhere the boiler water set-point (heat call only) equalsthe outdoor temperature. I.e., if RES is set to 70, thenthe heating set point becomes 70 when it is 70ºFoutdoors or higher. (Only used if outdoor sensor isconnected)See Table 12-4SFS 75-100 Starting Gas Input Value 85HFS 100-240 Maximum Gas Input Value 240LFS 40-100 Minimum Gas Input Value 50 for Ti100-15040 for Ti200ER5 ON/OFF DHW Time-Out – When turned ON removes priorityfrom DHW call after 2.5 hours; prioritizes heating call. ONFRE ON/OFFFreeze Protection – When turned ON the controloperates the burner and the circulator once the boilerwater temperature drops below 40ºF. WARNING thisis not a guarantee protection from freeze-up.ON (if boiler controls primarycirculator)StO OFF-24Storage Feature Timer – Length of time in hoursstorage feature will keep boiler hot after the latestDHW call, only active on Combi boilers.2 (turn OFF if Combi boilerutilizes a storage tank)To start the control operation, you must return to RUN in the menu, and press Function. Normal operation will begin.(*Note: LFS must not be set below 50 on Ti100-150’s.)