RBI FlexCore CK 850 Control Manual

Also see for FlexCore CK 1000: Installation and operation instructions

Contents

RBI FlexCore CK 850 Control Manual Manual pdf 64 page image

OPTIONAL FEATURES HeatNet Control V3Page 64The OR OVR (Outdoor Reset Override) input on J12A can beused to override this Outside Air Setpoint and maintain thewater setpoint at the LOCAL or SYSTEM SETPOINT valuewhen a contact is closed across this input. This can be used asa Domestic Hot Water demand input.Another function of the OUTDOOR RESET is theWinter/Summer mode ((W)arm (W)eather (S)hutdown). Withthe WWS SETPOINT set to 72F and WARM WEATHERSHUTDOWN set to ON, the boiler/system will enter summershutdown when the Outside Air temperature rises above 72F.While in this state, the OR OVR input on J12A can be used tobring the boiler/system on to maintain the water setpoint atthe LOCAL or SYSTEM SETPOINT value.During WWS operation, the System pump will not be enabledjust the Local pump unless the SETTINGS: SYSTEM PUMP:OVERRIDE ENABLED IN WARM WEATHERSHUTDOWN is set to ON. This is the System PumpPriority mode. When SETTINGS:SYSTEM PUMP:OVERRIDE ENABLED IN WARM WEATHERSHUTDOWN is set to OFF, the system pump will not comeon while in WWS with the OR OVR override input closed.SensorsThe H-Net control supports a standard 10K thermistor (TypeACI/10K-CP). These sensors can be calibrated to the controlby entering the sensor menu and placing a precision 10kresistor on an input.Immersion sensors must have wells.There is also a provision to use a 1K platinum sensor for thestack temperature. The 10k thermistor is limited to a usablerange of 270F, and the 1k platinum sensor to upwards of1000F. The S5 DIP switch is used to configure one or theother.Stack TemperatureThe version 3 control also supports an optional 1k platinumstack sensor. If the Stack Sensor is present, a warning willoccur at 325F and greater. During the Warning condition, forevery degree F over the warning temperature of 325F, theboiler’s input will be limited by 4% until the boiler is runningat low fire. If the SETTINGS: HEAT EXCHANGER:ALARM TYPE: is set to” FAULT” the boiler will halt andthe Alarm relay will close when the Stack temperatureexceeds 350F. The boiler will then be allowed to restart whenthe Stack temperature drops below 325F.The Stack sensor should be a 1k ohm platinum type sensor.Part # 0040-1300. To configure the 1k PT Stack sensor,Switch S5.3 should be set to the NONE position and S5.4 setto PLATINUM STACK. The sensor will then be auto-detected after a power cycle.SecurityA password can be used to lock out control and setup features.It can be enabled, but is shipped in the disabled state.Save/Restore ConfigurationSettingsIn a complex system, there can be a multitude of settingsnecessary for proper boiler operation. These settings can besaved to the onboard memory, and/or a USB drive. SAVESETTINGS: ONBOARD MEMORY/USB FILESaving to the on-board memory is useful when changes havebeen made to the settings menu, prior to upgrading firmware,or doing a factory reset. Upon completion the settings canthen be loaded using, RESTORE SETTINGS: ONBOARDMEMORY.Saving to a USB drive is useful if a control board has to bereplaced. The file on the USB can be loaded on the new boardusing the RESTORE SETTINGS: USB FILE.USB FeaturesThe HeatNet V3 control supports a USB updating system anddesktop connectivity using the HeatNet Control Pro software.In order to ensure that a valid firmware file is alwaysavailable on the HeatNet board, (2) file storage locations areavailable. A firmware file is loaded at the factory in bothlocations. This is to ensure that if a bad file is loaded by theuser, the factory loaded file can be re-loaded to get the boardfunctional again. All updating of firmware for TouchscreenDisplay applications use the front panel USB input.The firmware loading menu is located at; SETTINGS: LOADDISPLAY FIRMWARE & SETTINGS: LOAD CONTROLFIRMWARE. The following explains the menus.Loading the Display FirmwareSelecting the LOAD DISPLAY FIRMWARE menu allowsupdating the displays application program which resides onthe display. This does not update the controls firmware. Newfirmware is posted periodically on Sales Assistant or the RBIwebsite.Loading the Control FirmwareSelecting USB DRIVE will read the FIRMWARE directoryon a flash drive and display any .hex files located there. TheUSB flash drive needs to have a directory called “firmware”located in the root directory. The downloaded firmware .hexfile needs to be placed there. Then the flash drive needs to beinserted into J6 on the HeatNet control board. Follow the onscreen prompts and then select the file using the arrow keys.