27PART 6 SOLA CONTROL PANEL6.1 APPLIANCE TEMPERATURE CONTROLLERThe appliance is provided with a control panel at the front.Operating controls are installed inside the control box and areaccessible by undoing the two (2) slotted screws and swingingopening the door. The diagnostic information centre as well asthe on/off switch and the appliance temperature controls resideon the control box door the ignition control module, VFD,transformer and relays are mounted on the internal panel.Figure 26: Control Panel FrontThe SOLA icons will appear in one of four colours indicatingthe boiler status:Colour DescriptionBlue Normal OperationRed Lockout ConditionYellow Holding ModeGrey Communication ErrorThe Boiler Temperature Controller for this appliance is theHoneywell SOLA. It initiates the local call for heat and sets thetarget return (appliance inlet) water temperature. Thiscontroller offers a range of operation modes which provides setpoint as well as modulating control. It provides the following:• Readings of inlet and outlet water temperatures as well asflame signal.• Operation as an auto reset limit.• Operation as a control for inlet water temperature, outlettemperature, system temperature.• 40oF ∆T heat exchanger protection algorithm• Available tank mounted sensor used in conjunction withinlet sensor.• Adjustable; target temp, inter-stage differential, on delaybetween stages, minimum on time per stage, minimum offtime per stage.• Display of run hours for maintenance purposes. Counterwraps around at 10000 hours.• Flame failure signal.• JST and Molex connectors for ease of service.• Error message display in text• Manual override of boiler input rate for combustion• Pump exercising feature runs pump 10 seconds everythree days in the event of no pump operation.Levels of AccessTwo levels of access to simplify the use of the boiler.User – Access to general boiler and display settings andadjustments to the central heating and domestic hot watersetpoint.Installer – Access to all user parameters and allows forchanges to additional boiler parameters to allow for easeof startup and serviceability.NOTEDue to the sensitivity of the touchscreen controller, usingthe backend of a pen/pencil is recommended for accuracyFigure 27: Home ScreenPARAMETER DESCRIPTIONDemand Central Heating (DRH)Domestic Hot Water (DRW)Burner State Current Status of DynaFlame®Firing Rate Target Firing RateInlet Inlet Water Temperature [oF]Outlet Outlet Water Temperature [oF]Stack Stack Temperature [oF]DHW DHW Temperature [oF] ], if equippedLead Lag/ CH Header Temperature [oF], if equippedOutdoor Outdoor Temperature [oF], if equipped4-20mA 4-20mA input, if equippedBUTTON DESCRIPTIONConfigureAccess DynaFlame® parameters (CHParameters, DHW Parameters, OutdoorReset, Pump Configuration etc.)Operation Details of boiler operation (Set point, FiringRate, Pump Status, Safety circuit)Diagnostics Manual firing rate, Analog/ Digital StatusDetails History, Pump Status, Outlet Temperature