Bryan Boilers 200, 250, & 300 Master Active Service, Master Service Status, Modulation Sensor

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following sources of demand. All sources that are currently calling for heat will be true (multiple items may be true at the same time) except when WWSD is active, then CH demand is inhibited.

CH Demand

CH Frost demand – true if any slave is calling for CH frost protection and Frost protection enable is true.

4.7.4MASTER ACTIVE SERVICE

Is a data item which contains the identity of a single source of demand that the LL Master is currently serving according to its priority:

•None – no active service, LL master is idle

•CH

•Frost – burner demand is true for frost protection

•WWSD – no high priority demand is active, and WWSD is inhibiting CH demand (if any).

MASTER SERVICE STATUS

Is a data item used by pump control logic that combines the Master Heat Demand and Master Active Service data. It is implemented as described by the Pump Control Block diagram.

Outdoor Temperature

For a Sola that hosts a LL master, the outdoor temperature may be known from either of two sources. If the host Sola has an outdoor sensor that is reporting a valid temperature then this sensor reading is used. Otherwise, if any slave Sola is reporting a valid temperature as part of its Data Poll message, then this temperature is used.

The resulting outdoor temperature provides all outdoor temperature needs for both stand-alone and LL master purposes. If neither source has a valid temperature then the outdoor temperature is simply invalid and unknown, and the functions which need this information handle it accordingly per their individual definitions.

Modulation

Each demand source has one or more setpoints that may be active and an operation sensor.

65

Date: 8-4-2010

Revision: 0

Form: 2396

These are used to detect turn-on and turn-off conditions. The difference between operating point and setpoint determines the LL master's firing rate

4.7.5MODULATION SENSOR

LL MODULATION SENSOR: S5

The LL master's modulation sensor uses the S5 sensor (connector J8 terminal 11 and 12). If the

LLmaster is enabled and its sensor is faulty then an alert will be issued.

LL MODULATION BACKUP SENSOR: DISABLE, LEAD OUTLET, SLAVE OUTLET AVERAGE

If the sensor chosen by the LL Modulation sensor is faulty then the backup sensor provided here may be used.

If Disable is selected then no backup will be used.

If Lead Outlet is selected then the outlet temperature of the lead boiler will be used as the backup during firing.

If Slave Outlet Average is selected then average of the outlet temperatures of all slave boilers that are firing will be used as a backup. When the burner demand is off and no burners are firing then, for either Lead Outlet or Slave Outlet Average, the lead boiler's outlet temperature is used to monitor for burner demand.

Setpoints

LLCH SETPOINT SOURCE: LOCAL, S2 4- 20MA

If the setpoint source is Local then the Sola control's local setpoint system is used. This setting enables the normal use of the CH setpoint, CH TOD setpoint, and the CH outdoor reset parameters and functions.

If the setpoint source is S2 4-20mAthen the setpoint is determined by the 4-20mA input on S2, and the two parameters described below. If the 4-20mA signal goes out of range or is invalid, and this persists for a specified time, then the setpoint source reverts to "Local". In this case once it has gone to "Local", it remains

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Contents Triple-Flex High Efficiency Boilers Triple-Flex 150, 200, 250 High Efficiency Boilers Table of Contents Lead Drop-Stage On Error Ldse Figures Date Date Revision Form DIM Boiler FoundationClearances Minimum Clearances to Combustible SurfacesExpansion Tank Connections Safety Relief ValvesBoiler Connections Flow ConnectionCombustion AIR Supply Venting of GAS Train ComponentsElectrical Requirements KW HPLOUVERS, GRILLES, and Screens Combustion AIR OpeningsFlue GAS Venting System Design & InstallationScfm Combustion AIR and Venting Requirements for CanadaBefore Placing Boiler in Operation Marking of GAS VentsTest of GAS Piping Hydrostatic Test of Boilers and SystemStart-Up and Operation Triple-Flex High Efficiency Boilers TRIPLE-FLEX Front View Boiler AssemblyTriple-Flex Rear View TRIPLE-FLEX Rear ViewTRIPLE-FLEX Behind the Cabinet Door TRIPLE-FLEX Left Side ViewTRIPLE-FLEX Right Side View Air Flow Switch TRIPLE-FLEX Left Flue Collector View Pilot Spark Igniter AssemblySola Hydronic Control System POWER-UP ValidationTRIPLE-FLEX Right Flue Collector View HomeKeyboard NavigationStatus Configuration ConfigureSample Configuration Configuration PasswordSafety Verification Configure Verify Change Parameter SettingsSafety Parameter User Confirmation FAULT/ALARM HandlingHome Page Lockout Info BAR Lockouts Clear Lockout OperationFiring Rate Control Operation Firing Rate Field Modulation Configuration Configure ModulationAnnunciation Operation Calibrate Touch Screen Setup Advanced Setup Diagnostics Advanced Setup Setup Advanced SetupSystem Time Setup Advanced Setup Date & Time Outdoor Reset Configure Reset / Reboot DisplayAdvanced Setup Display Reset Safety Verification Configure CH Central Heat Configuration Configure Sensor ConfigurationConfigure CH Central Heat Configuration PID Sound Pressure LevelsSound Pressure Readings Alert Codes Modbus CommunicationDHW RPMODR ILK PII SLOA2D HFSRevision Modulation Test SetupPRE Checks and Setup Boiler CommissioningDRY RUN Pilot AdjustmentIWC Adjusting Boiler Maximum InputAdjusting Boiler Minimum Input Initial Light OFFGAS Meter Readings CFH = 3600Vc gc CFH = ft 3 hr −1 of gas Vc = ft clockedPII Or L TroubleshootingDate ILK OFF LCI OFFPII OFF ILK on Weak VsnsrThrough Fault CodesAre OEM Specific Fault Codes OFFOFF Blower LCI High Limit setpoint setting 228 Invalid Reserved Care and Maintenance Boil OUT Procedure Boiler Water Treatment Draining the SystemDo not Flush the System Through the Boiler Suggested Maintenance Schedule External FIRE-SIDE CleaningDate Revision Form Lead Lag Lead LAG LL Master General Operation General Description of the Lead LAG ApplicationDrop-stage method Drop-stage detection timing LL / Multi-Boiler Field Wiring System Wiring HookupLEAD-LAG Operation Slave Parameters Slave Operation and SetupSlave Mode USE FIRST, Equalize RUNTIME, USE Last Overall Control LL Master Operation and SetupSlave Status Manager Periodic Data Polling MessagesInvalid Response or no Response AbnormalFaultCounter Used to tolerate momentary abnormalityMaster Heat Demand LL CH Demand Switch DISABLE, STAT, Environcom Remote StatLL Modulation Sensor S5 Master Active ServiceMaster Service Status Modulation SensorDemand and Rate Implementation Rate AdjustmentIntegrator Compensation Rate Allocation Method Parallel Commonbase Limited Rate AllocationBase Load Common 0-100% Overflow and Underflow Modulating StageStagerstate = Active Burner DemandStagerstate = Idle ADD-STAGE Condition ADD-STAGE Error Threshold DegreesError Threshold ADD-STAGE Rate Offset -100% to +100%DROP-STAGE Condition DROP-STAGE Error Threshold DegreesLL ALL Boilers OFF Threshold Temperature or None DROP-STAGE Rate Offset -100% to +100%Force Lead Rotation Time Hhmm or None Lead DROP-STAGE on ErrorLAG Selecton Method Sequence ORDER, Measured RUN Time Date Revision Form Slave Read Data Sequencer 1 Minute EventForced Lead Rotation Slave Write Data
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