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I&O Manual - Solaris Water Heaters - Categories On Thermal ...

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D. SETUP MENUDisplayWWSDLL StartTriggerLL StopTrigger<strong>Water</strong>heater <strong>On</strong>Delay<strong>Water</strong>heater OffDelayHigh FireLimitRotationRotationAfterOutdoorSensorOutdoorSet Up<strong>Water</strong>heater SetUpOutdoorDesign<strong>Water</strong>heaterDesignFactorySettingsOffRange/ChoicesOffWWSD of <strong>Water</strong>heaterWWSD of SysPumpBoth90 50 to 10025 0 to 50120 0 to 900120 0 to 900100 40 to 100DisableDisableEnable168 8 to 720NoNoDisplay <strong>On</strong>lyOutdoor Reset55°F 40°F to 100°F140°F 80°F to 180°F30°F -20°F to 50°F180°F 80°F to 220°FDescriptionWWSDSpecifies Warm Weather Shut-Down (WWSD) control of water heater and/or system pump:Ignores Warm Weather setpointWhen Outside Air Temperature (OAT) is higher than the WWSD setpoint, inhibits water heater startWhen OAT is higher than the WWSD setpoint de-energize System Pump output (SO)When OAT is higher than the WWSD setpoint, inhibit Call for Heat and de-energized system pumpoutput (SO)LL Start TriggerSpecifies the percent of maximum modulation rate the running water heater(s) must reach beforecalling upon additional water heaters for help.LL Stop TriggerSpecifies the percent of modulation rate that the running water heater(s) must be below before shuttingdown a lag water heater.<strong>Water</strong> heater <strong>On</strong> DelayTime Delay after the <strong>On</strong> Point setpoint before starting the next water heater. Short time delay to preventnuisance starts due to momentary temperature and modulation rate swings.<strong>Water</strong> heater Off DelayTime Delay after the Off Point setpoint before stopping the next water heater. Short time delay toprevent nuisance stops due to momentary temperature and modulation rate swings.High Fire LimitHigh modulation rate limit for all water heaters on the peer-to-peer network as long as at least onewater heater is still not running. After the last water heater has started the modulation rate is releasedup to 100%.RotationSpecifies number of hours (cumulative) a lead water heater runs before passing the lead to anotherwater heater.Lead rote will be surrendered earlier if the lead water heater is placed into manual mode, is runningremotely (mode 6), fails to start, is “blind” (all input sensors failed), or is satisfying a DHWP request.Rotate AfterSpecifies number of hours (cumulative) a lead water heater runs before passing the lead to anotherwater heater.Outdoor SensorEnables the Outside Air Temperature sensor and display and control logic:Outside Air Input (O+O-) is ignored.Do Not Calculate setpoint based on outdoor temperature, Display Outside Air TemperatureCalculate the temperature setpoint based on outdoor temperature using a reset curve defined byOutdoor Set Up, <strong>Water</strong> heater Set Up, Outdoor Design and water heater Design parameters.Outdoor Set UpThe Outdoor Set Up temperature is the outdoor temperature at which the <strong>Water</strong> heater Set Up temperatureis supplied. <strong>On</strong>ly visible when Outdoor Sensor is set to Outdoor Reset.<strong>Water</strong> heater Set UpThe <strong>Water</strong> heater Set Up temperature is the starting water heater water temperature of the resetratio. If the building feels cool during mild outdoor conditions, the <strong>Water</strong> heater Set Up setting shouldbe increased. <strong>On</strong>ly visible when Outdoor Sensor is set to Outdoor Reset.Outdoor DesignThe Outdoor Design temperature is the outdoor temperature at which the <strong>Water</strong> heater Design temperatureis supplied.<strong>On</strong>ly visible when Outdoor Sensor is set to Outdoor Reset<strong>Water</strong> heater DesignThe <strong>Water</strong> heater Design setting is the water temperature required to satisfy the building heat lossduring the Outdoor Design temperature. If the building feels cool during cold outside conditions, the<strong>Water</strong> heater Design setting should be increased.<strong>On</strong>ly visible when Outdoor Sensor is set to Outdoor Reset.52

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