Lennox International Inc GWB9-050IH-2 Condensate Drain Requirements, Foundation Requirements

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BOILER INSTALLATION

Condensate Drain Requirements

•Pitch condensate drain line down to floor drain at mini- mum of ¼” per foot. External condensate pump (not furnished) may be used if floor drain is not available.

•Condensate pump must be designed for flue gas con- densate application.

•Condensate trap provided with boiler, an additional trap is not required and should not be used.

•Wood frame or blocks may be used to raise boiler to maintain drain pitch or to be above external condensate pump reservoir.

Foundation Requirements

• Install boiler on level surface.

!WARNING

Fire hazard. Do not install boiler on carpeting. Failure to follow these instructions could result in death or serious injury.

•Boiler is NOT to be installed on carpeting.

•If boiler is not level condensate drain lines will not function properly. Adjustable feet are located on the boiler to make up for minor surface irregularities or tilt.

•Wood frame or blocks may be used to raise boiler to maintain drain pitch or to be above external condensate pump reservoir.

Removal of Existing Boiler From Common Vent System

When an existing boiler is removed from a common venting system, the common venting system is likely to be too large for proper venting of the appliances remaining connected to it. At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

1.Seal any unused openings in the common venting system.

2.Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage, or restrictions, leakage, corrosion and other deficiencies which could cause an unsafe condition.

3.In-so-far as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryer and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhaust, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fire dampers.

4.Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so appliances will operate continuously.

5.Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or the smoke from a cigarette, cigar or pipe.

6.After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fire place dampers, and any other gas-burning appliance to their previous condition of use.

7.Any improper operation of the common venting system should be corrected so the installation conforms with the National Fuel Code, NFPA-54/ANSI -Z223.1 and/ or the Natural Gas and Propane Installation Code, CAN/CSA B149.1.. When re-sizing any portion of the common venting system, the common venting system should be re-sized to approach the minimum size as determined using the appropriate tables in Chapter 13 of the National Fuel Gas Code, NFPA-54/ANSI- Z223.1 and/or the Natural Gas and Propane Installation Code, CAN/CSA B149.1.

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Contents Installation Instructions Boiler Dimensions Introduction IntroductionImportant Safety Information GeneralSEA Level Ratings Natural and Propane Gases Net Ahri Rating Shipping Flue DiameterBoilers for USE AT High Altitude United States Installations 90 50/75/100 Series 2 Natural GAS90 50/75 Series 2 Propane GAS 43331093 43331096Boiler Sizing Before Installing the BoilerBoiler Location Considerations Combustion Air And Vent Pipe Requirements Boiler InstallationLocating The Boiler Extreme cold climate areas, use ¾ Armaflex or equivalentCondensate Drain Requirements Install boiler on level surfaceBoiler is not to be installed on carpeting Foundation RequirementsNear Boiler Piping Clean the System FirstSupply And Return Lines Single Zone Boiler Piping Multi-Zone Systems Two Zone Boiler Piping With Zone ValvesTwo Zone Boiler Piping With Circulators Page Page Page Expansion Tank And Make-Up Water Safety Relief ValveTerminate pipe with plain end not threaded Diaphragm Type Expansion Tank Piping Conventional Closed Type Expansion Tank Piping Filling Condensate Trap With Water Reinstall vent drain lineCondensate Drain Piping Chilled Water PipingExample Combustion AIR and Vent PipeConnections And Termination Elbow @ 3 ft. + 1 elbow @ 3 ft. = 6 equivalent ft. of pipeInstallation Boiler SizeVent AIR Intake Roof Vent / Intake TerminationsLess Than 12 Clearance Concentric Vent Terminations CombustionVent AirCombustion Air and Vent Piping Boiler Connections Feet minimum total equivalent length for all modelsCheck Gas Supply Connecting The Gas PipingGAS Supply Piping Leak Check Gas Piping445,000 Gas Pipe Sizes625,000 365,000Thermostat Installation Electrical WiringElectric Power Supply Connect Circulator Pump WiringWiring Schematic Ladder Wiring Diagram Page Ladder Diagram for Figure Controls and Accessories Draft Inducer Casting Temperature Safety SwitchDrain Valve Circulator PumpStart UP Operating Instructions To Turn Off Gas To ApplianceUser Parameters Adjusting Settings S9381A Integrated Boiler Control Operation and AdjustmentsDisplay State Code Definitions Sequence of Operation Check OUT Procedure and Adjustment Set Thermostat To Desired Room Temperature Review All InstructionsVR8205 Maintenance and Cleaning Igniter wires Gas valve wires Annual Examination And Cleaning Of Boiler ComponentsRemove draft inducer and gasket from top of flue connector Troubleshooting Initial Service ChecksError Codes Differential AIR Pressure Switch Check Boiler Differential PressureAluminum Series Fill Water and Chemistry Clean System FirstEliminate System Leaks General Guidelines When Using Antifreeze Antifreeze Products Installation and CHECK-OUT Certificate Boiler Model Serial # Date Installed Measured BTU/HR inputPage Lennox Industries Inc. Dallas, Texas
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GWB9-050IH-2, GWB9-100IH-2, GWB9-075IH-2, Gas-Fired Hot Water Boiler specifications

Lennox International Inc. is a prominent player in the HVAC industry, renowned for its innovative solutions and high-efficiency products. Among its standout offerings is the GWB8 Gas-Fired Hot Water Boiler, available in various models including GWB8-262E-2, GWB8-245E-2, GWB8-280E-2, and GWB8-299E-2. These units are designed to provide reliable and efficient heating solutions for residential applications.

One of the key features of the GWB8 series is its energy-efficient operation. These boilers are designed to achieve an AFUE (Annual Fuel Utilization Efficiency) rating of up to 84%, allowing homeowners to save on energy costs while reducing their environmental footprint. The product utilizes a cast-iron heat exchanger, which promotes optimal heat retention and distribution, ensuring consistent performance throughout the heating season.

The GWB8 series incorporates advanced technologies to enhance comfort and efficiency. A significant innovation is the use of a power venter system that facilitates venting through the sidewall of the home, providing installation flexibility while maintaining safety standards. Additionally, the boilers are equipped with a Honeywell integrated control for precise temperature management and modulating gas valve technology, which adjusts the gas flow to match the heating demand, further optimizing fuel consumption.

Another defining characteristic of the GWB8 models is their durable construction. Designed to withstand the rigors of heating applications, these models feature a robust, powder-painted steel cabinet that helps prevent rusting and corrosion. The access doors are insulated, contributing to overall efficiency while allowing easy maintenance and serviceability.

The GWB8 series is also designed with homeowner comfort in mind. The quiet operation of these boilers ensures that they blend into the living environment without disruptive noise, making them an ideal choice for residential settings. The models are compatible with various heating systems, including hydronic heating, making them versatile and reliable.

Overall, Lennox's GWB8 Gas-Fired Hot Water Boiler series is an excellent choice for homeowners seeking efficient, durable, and reliable heating solutions. With a combination of advanced technologies, energy-efficient performance, and practical features, these boilers set a high standard for residential heating systems in today's market.
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