PB Heat 211A manual Connect GAS Piping, Install GAS Train, Connect Pilot GAS Tubing

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CONNECT GAS PIPING

7. CONNECT GAS PIPING

A.INSTALL GAS TRAIN

1.The Gas Control Train(s) supplied with this boiler:

•Has been factory assembled and tested for tightness of joints.

•Must be re-tested after installation with a soap suds test to assure it is still leak-tight after assembly.

•Must be isolated from the gas supply piping during testing of the supply piping.

2.Assemble the Gas Control Train(s) to the Manifold with the ground joint union(s) provided. See Figure 7.1. Models 211A-04 through 211A-18 are supplied with a single Gas Control Train. Models 211A-19 and larger are supplied with two or more Gas Control Trains.

3.Support the Gas Control Train(s) with a permanent brace.

B.CONNECT PILOT GAS TUBING

1.Use 3/8" aluminum tubing or as required by local codes.

2.Connect the Pilot Line to the Pilot Cock Assembly supplied with the Gas Control Train.

3.Connect tubing to each pilot.

a.Connect electronic pilots to the Pilot Gas Valves.

b.Connect standing pilots (when supplied – see Table 2.2) to the thermopilot valves.

c.Install thermocouples in the standing pilots and connect to the thermopilot valves.

C.INSTALL VENT AND BLEED PIPING

1.Gas Pressure Regulator

a.Connect regulator vent outlet to outside atmosphere using 1/4" tubing or as required by local codes.

b.Terminate the tubing downward to prevent water from entering the tubing and protect from any obstruction.

c.Terminate the tubing above and well away from normal breathing level or building air intakes.

2.Diaphragm Gas Valves

a.Pipe diaphragm gas valve bleed lines to outside atmosphere unless the boiler is equipped with a standing pilot. On standing pilot boilers, pipe the valve bleed lines to the bleed piping pre-installed to the pilot burner.

b.Use 1/4" tubing or as required by local codes. Always pipe the bleed lines separate from the regulator vent lines.

Figure 7.1: Gas Control Train and Burner Assembly, Single Natural Gas Control Train Shown (Models 211A-19 and Larger Use Two or More Gas Control Trains)

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Contents Series 211A Table of Contents Special Attention Boxes Using this ManualFollow the Piping Guidelines ControlsAIR for Combustion and Ventilation PreinstallationAccessibility Clearances Combustible Construction ClearancesRequired Volume fan = 15 ft Required Volume other =21 ft Input for all appliances in the space. See Btu/hr 22 cm 2 per 2000 W of total ratedCombustion Air Ducts Chimney or VentWhere Mechanical Combustion Air SupplyVent Sizing Exterior VentsCombined vent breeching Installation Survey Boiler SettingWater Quality and MAKE-UP Boiler Foundation Layout Assemble the Base Base AssemblyCrate Items For 211A-04 through 211A-08 Only Install the Pilot BurnersModel Overall Length Base Front and Back Panel CratesTypical Gas Manifold and Pilot Line Assembly Pilots Total Natural Gas Only Propane Gas Only Model NumberBurners Preparation Place the Boiler SectionsPlacing the Sections Assembling Sections on Base Align Sections Vertically Hydrostatic Test the BoilerDo not tighten yet Install the Flue CollectorBoiler Position Supply Piping Pipe the BoilerReturn Piping Pipe the Boiler Model Size Multiple Boiler InstallationsBoiler Header End Risers EqualizersPiping Multiple Boilers, Typical, Gravity Return Systems Apply Jacket END Assemblies Install the Jacket & Draft HoodApply Cleanout Cover Plates Prepare the PartsApply Jacket TOP Panels Apply Lower END PanelsApply Plates and Labels Top Panel GG-6024 Carton Contents Sub-Assembly Part Number Quantity Jacket Assembly Sequence Carton Numbers and Locations 13C Connect Pilot GAS Tubing Install GAS TrainInstall Vent and Bleed Piping Connect GAS PipingTest GAS Supply Piping Install GAS Supply PipingSpecific Gravity Multiply Capacity by Pipe Length 4 Pipe 2 PipeInstall Pressure Controls Install Controls and TrimInstall Safety Valves Install LOW Water CUT-OFFS Install Blowdown ValvesPressure Control Piping Fittings Included with Boiler Standard Float Type COntrol, Model 67PE2 Optional Float Type Pump Control/Low Water Cut-Off, Model Application of 51 Feeders Prepare Remaining Controls Wire the BoilerConnect Supply Wiring Install Control WiringTypical Wiring Standard Controls Low Voltage Gas Valves Typical Wiring Standard Controls 120-Volt Gas Valves Starting the Boiler Check Boiler Controls Clean the BoilerMeter reading. Rate, Btu/Hr = F x H x To Light the Boiler To Shut Down the Boiler Lighting Instructions TypicalPilot Flame Failure Operation & Maintenance Pilot and Burner Flames Placing Boiler in OperationDaily Maintenance Monthly MaintenanceAnnual Maintenance Weekly MaintenanceProblem Possible Cause Suggested Remedy Troubleshooting Service TipsCorrect Piping Boiler Rating Information Boiler Ratings & DimensionsBoiler Ratings & Dimensions Series 211A Steam Boiler Dimensions Chart continues onSeries 211A Steam Boiler Dimensions Description Part Selection Information Stock Code Repair Parts Series 211ABase Front Panel Cover Plate 26 660 mm Wide Base Panel Boiler Assembly Base Assembly Page Series 211A