Bryan Boilers 200, Triple-Flex 150 External FIRE-SIDE Cleaning, Suggested Maintenance Schedule

Page 59

not less than four times a year, and possibly more frequently as the local water conditions may indicate. All water introduced into the boiler should be softened and should include an oxygen scavenger like sodium sulfite. This is required to remove dissolved oxygen from the water. Dissolved oxygen will cause severe boiler tube corrosion.

Draining and refilling the boiler & system

If the system is drained and then refilled, chemical treatment is essential to treat the raw water. Use only clean, softened water.

3.4EXTERNAL “FIRE-SIDE CLEANING

Purpose

Carbon (soot) is an insulator and corrosive. The heating surfaces of a boiler must be kept free from soot accumulation to keep the boiler operating at its highest efficiency and to avoid damage from corrosion.

Soot removal

If the yearly inspection of the boiler tube surfaces reveals a build-up of soot or rust (usually due to condensation), the tubes should be thoroughly brushed. (Tube cleaning brushes are available from Bryan Steam) To inspect and, if necessary, clean the tube surfaces and flue collector, first remove the tube access panels. Examine the exterior of the tubes for evidence of soot or rust. Using a flashlight, carefully look between the tubes. There should be an unobstructed opening between all tubes, and the top surfaces of the tube must be free from soot accumulation. Also inspect the interior of the flue collector. Brush or vacuum the soot from all surfaces. Be sure to cover Triple-Flex burner with a protective cover during cleaning to prevent soot from falling onto it.

If the buildup of soot is appreciable, the flue gas venting system must be thoroughly inspected internally as well, and cleaned as necessary.

Date: 8-4-2010

Revision: 0

Form: 2396

WARNING:

If soot or condensation is apparent, a boiler service technician should be consulted. The presence of soot indicates poor combustion and possibly hazardous boiler operation. Failure to do so may result in fire, explosion potential, or asphyxiation. A combustion test and burner adjustments should be undertaken at once.

3.5SUGGESTED MAINTENANCE SCHEDULE

Daily

1.Make visual inspection of gauges, monitors, and indicators and record readings in boiler log.

2.Make visual check of instrument and equipment settings against factory recommended specifications.

3.Check operation of probe type low water cutoff(s) to ensure control is functioning.

Weekly

1.Confirm boiler area is free of combustible materials and that there is nothing obstructing air openings, draft hood relief openings, etc.

2.Check combustion safety controls for flame failure and flame signal strength as specified in manufacturer's instructions located at the back of this manual.

3.Check all limit controls.

4.Check low water cutoff as described above.

Monthly

1.Check high and low gas pressure interlocks. Refer to manufacturer's instructions for correct procedure.

Annually

1.The flue gas passages and the exterior surfaces of the boiler tubes should be

53

Image 59
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