Beckett CG15 Install a Drip Leg in Gas Supply Piping, Gas Trains Gas Leaks and Explosion Hazards

Page 11

Section: Connect Gas Piping

Install a Drip Leg in Gas

Supply Piping

Foreign matter could lodge in gas valve cutoff seals, resulting in gas leak-through, explosion or fire.

Install a full-size drip leg or dirt pocket in the piping directly ahead of the main shutoff valve to capture foreign matter.

Gas Trains

Gas Leaks and Explosion

Hazards

Provide Over-pressure Protection

CSD-1 requires that if gas pressure entering the building exceeds the rating of any gas train component an overpressure protection device must be installed.

Standard – An Underwriters Laboratories (UL) listed gas train is standard for the CG10 gas burner. This configuration also meets CSD-1 requirements. See Figures 8A and 8B for typical component layout.

Propane (LP) – When the correct propane restrictor is added to a burner’s gas pipe assembly it changes the burner’s gas pressure drop so that the propane pressure drop is equal to the natural gas pressure drop of the same BTU firing rate. That is why the Manifold

Figure 7 - Typical Gas Piping Layout

to Furnace Pressure Drop curves of Figures 14A, 14B, and 14C are correct for both propane and natural gas. That is also why a gas train adjusted for the burner’s natural gas requirements will be correctly adjusted for its propane requirements. R. W. Beckett provides the same pressure regulating safety shutoff valve in the gas train (usually a Honeywell V4944B) for both natural gas and propane. The valve is marked for natural gas due to its primary usage in a pressure range normally used by natural gas appliances. It is safe and effective for propane usage in this design application.

Optional – Gas trains for IRI and FM are available and must be specified when ordering a burner.

Verify – Verify that the train components are not damaged and all piping and fittings are clean inside and out. The gas train is normally shipped as components and must be assembled and installed at the site.

Vent Lines – Install vent lines to any gas valve component that requires atmospheric air pressure to balance a diaphragm. Vent lines must be run to the outdoors, with the termination point away from fresh air intakes and windows. The terminal opening must be fitted with a wire mesh screen to block insects and other contaminants from entering the vent and must be mounted in such a position that water, ice, dirt, or any other foreign matter cannot infiltrate and block the vent piping. Make sure the final assembly is anchored securely.

 

ABBREV.

ITEM DESCRIPTION

 

 

HGPS

HIGH GAS PRESSURE SWITCH

 

 

LGPS

LOW GAS PRESSURE SWITCH

 

 

MSC

MAIN SHUTOFF COCK

 

 

MLTC

MAIN LEAK TEST COCK

 

 

PG

PRESSURE GAUGE

 

 

S

STRAINER

 

 

SSOV1

SAFETY SHUTOFF VALVE #1

 

 

TC

TEST COCK

 

 

U

UNION

 

 

2PRV

TWO POSITION REGULATING VALVE

 

 

 

 

 

 

 

 

 

LGPS

HGPS

METER

REGULATOR

 

 

 

 

 

 

PG

 

 

U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS UTILITY PIPING

BURNER

DRIP LEG

S

MSC

U

SSOV1

TC

2PRV

TC

MLTC

U

TC

 

 

 

 

 

 

 

 

 

 

 

(IF USED)

 

 

 

 

 

 

 

 

 

FACILITY PIPING

 

 

 

 

GAS TRAIN

 

 

 

BURNER

CG15, CG25, CG50 Burner Manual

11

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Contents Fire, Explosion and Asphyxiation Hazards Page Contents Frozen Plumbing Water Damage Hazard General InformationHazard Definitions Owner’s ResponsibilityPre-installation Checklist Burner Label Location Burner SpecificationsVerify Burner Components Verify Burner Air Tube AssemblyTest For Gas Pipe Leaks Electrical SupplyMaximum Capacity at 3% O2 vs Furnace Pressure CG15, 60Hz Burner Dimensions Do Not Use Teflon Tape on Gas Piping Mount the BurnerConnect Gas Piping Protect the Air Tube from OverheatingGas Trains Gas Leaks and Explosion Hazards Install a Drip Leg in Gas Supply PipingPropane LP Gas Supply Piping Capacity Natural Gas Supply Piping CapacityPipe Size UL Gas Train High/Low and Low Fire StartSequence of Operation Wire the BurnerDo Not Bypass Safety Controls Keep Service Access Covers Securely InstalledSection Sequence of Operation Section Sequence of Operation Prepare the Burner for Start-up Professional Installation Service RequiredDelayed Ignition, Explosion Fire Hazards Test Instruments Burner Start ProcedureInitial Air Settings Start the BurnerDamper Motor with Cover Adjustment Procedure Optional Modulation Linkage Adjustment InstructionsCG50 Initial Burner Settings for Both Propane & Natural GasDisplay Meaning Modulation ControlVerify Input Firing Rate Uncorrected Flow Rate Temperature CorrectionEstimating Rate Clocking a Gas Meter500 CG15.4SCG15.3S 800 CG15.2S CG15.1S 600 400 200Technician Required Check Operation and Safety ControlsTesting by Qualified Use Test Instruments to Set Combustion Recommended Combustion Test SequenceTurn Off Electric and Gas Supply Before Servicing Maintenance and ServiceAnnual Professional Service Required Annual MaintenanceGas Supply Piping Flame SafeguardInstallation Area Adjust the Burner for Proper CombustionGas Gun Assembly Propane Restrictor Description InstallationAs shown in Figures 16 NumbersTest/Inspection Frequency Comments For the Operator Inspect Heating System RegularlyPeriodic Inspection Sheet Replacement Parts See Table Item Description CG15 Part No CG25 Part No CG50 Part NoLimited Warranty Information
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CG25, CG50, CG15 specifications

Beckett CG25, CG15, and CG50 are advanced burner systems designed for optimal performance in residential and commercial heating applications. Developed with state-of-the-art technology, each model offers distinct features and characteristics tailored to meet varying demands.

The Beckett CG25 is engineered for medium-output applications, providing reliable heating with exceptional efficiency. One of its standout features is the high-performance combustion head which enhances the air-fuel mixing process, leading to improved burn quality and reduced emissions. Additionally, the CG25 incorporates a fully automatic control system that allows for precise temperature regulation, contributing to energy savings and lower operational costs.

The Beckett CG15, meanwhile, is ideal for smaller residential systems. It stands out for its compact design, making it easy to install in tight spaces. Despite its size, the CG15 does not compromise on performance. It features advanced flame retention technology, which ensures a stable and efficient burn, while its low noise operation adds convenience for users. The CG15 also benefits from a robust safety system that includes a lockout feature to prevent unsafe operation.

On the higher end, the Beckett CG50 is designed for larger heating applications and is capable of generating high outputs while maintaining fuel efficiency. Its innovative design encompasses a three-stage combustion process that enhances efficiency and minimizes emissions significantly. The CG50 also features advanced diagnostic capabilities, providing real-time feedback and enabling proactive maintenance, which increases reliability and prolongs equipment life.

All three models are built with durability in mind, utilizing high-quality materials to withstand harsh operating conditions. They are compatible with various types of fuel, including oil and gas, making them versatile solutions for a broad range of heating needs. Beckett's commitment to sustainability is evident in the design of these burners, as they comply with stringent environmental regulations.

In conclusion, the Beckett CG25, CG15, and CG50 systems represent a blend of innovative technology, efficiency, and robust design. Their unique features cater to different heating demands, making them suitable for various applications while ensuring both performance and reliability. Whether for residential or commercial use, these burners are ideal choices for anyone looking to invest in a high-quality heating solution.
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