PB Heat 211A manual Wire the Boiler, Connect Supply Wiring, Prepare Remaining Controls

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WIRE THE BOILER

9. WIRE THE BOILER

A.CONNECT SUPPLY WIRING

1.All wiring must be done in accordance with local codes, the National Electrical Code ANSI/NFPA70 and/or the Canadian Electrical Code Part I, CSA C22.1, Electrical Code and other controlling agencies or governing bodies.

NOTICE

The boiler/burner must be electrically grounded in accordance with the requirements of the authority having jurisdiction, or in the absence of such requirements, with the current edition of the National Electrical Code, ANSI/NFPA Number 70 and/or the Canadian Electrical Code Part I, CSA C22.1, Electrical Code.

2.Use #14 gauge or heavier wire for supply wiring. Protect the circuit with a fused disconnect switch (by others) and a grounded neutral.

3.Mount an electrical junction box on the boiler Front Panel for connection of supply wiring and distribution to the boiler controls. See Figure 9.1.

Figure 9.1: Typical Control Layout and Wiring

B.PREPARE REMAINING CONTROLS

1.Mount the control transformer on the junction box as shown in Figure 9.1.

2.Mount a junction box near each Gas Control Train for connection of conduit and wiring distribution to the gas train components.

C.INSTALL CONTROL WIRING

1.Wire the boiler according to the wiring diagram supplied with the boiler (in the Control Envelope). Figure 9.1 is a typical layout of the components on the boiler. Figures 9.2 and 9.3 are examples of standard wiring systems. Use these drawings for general reference only.

2.Low Energy Safety Control wiring must follow the contour of the boiler. Some local codes may require that all wiring, even low voltage, be routed in conduit.

3.Install all line voltage wiring in conduit.

4.Do not install single pole switches, including safety controls, in a grounded line.

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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 other = Required Volume fan = 15 ft21 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 SupplyExterior Vents Vent SizingCombined vent breeching Boiler Setting Installation SurveyWater Quality and MAKE-UP Boiler Foundation Layout Base Assembly Assemble the BaseCrate 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 Total Natural Gas Only Propane Gas Only Model Number PilotsBurners Place the Boiler Sections PreparationPlacing the Sections Assembling Sections on Base Align Sections Vertically Hydrostatic Test the BoilerDo not tighten yet Install the Flue CollectorBoiler Position Pipe the Boiler Supply PipingReturn 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 Lower END Panels Apply Jacket TOP 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 Clean the Boiler Check Boiler ControlsMeter reading. Rate, Btu/Hr = F x H x Lighting Instructions Typical To Light the Boiler To Shut Down the BoilerPilot 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