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GB300 BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Gas Train Assemblies
All threaded gas train connections must be made using a pipe compound that is resistant to the actions of liquefied petroleum gases. Pipe connections should be secure and tested for leaks. This boiler is designed to allow for the installation of the gas train on either the left or right side of the boiler. Locate the gas train in the most ideal location, but ensure that the train and controls are protected from water and other possible damage. Install the supplied pipe cap on the manifold end opposite the location of the gas train. Install the supplied reducer coupling to the manifold where the gas train will be located.
Refer to the Gas Train Assembly Instructions for a detailed diagram of how the fittings should be arranged and assembled. The instructions are arranged by gas train assemblies. Look up the purchased gas train and confirm all parts for that train are accounted for. Assemble the train as depicted in the instructions. Refer to the GAS SUPPLY PIPING section of this manual to make the final connection to the main gas supply.
For installations in Canada a manual shutoff valve must be installed between the manifold and the first gas valve.
On gas trains with two valves the V88A valve must be installed first (closest to supply), followed by the regulating valve closest to manifold, Figure 91. Refer to diagrams in gas train assembly book.
Pilot Assembly
The pilot assembly must be performed after the installation of the control box.
The pilot assemblies are fed gas through 1/4" aluminum tubing. The tubing is supplied in a bulk roll and must be cut to fit in the field. Use an appropriate tubing cutter to cut the rolls to length. Debur and clean all cuts to ensure a clean line without blockage or interference. Use a tubing bender to bend the tube and the supplied tubing clamps to fasten it to the boiler jacket. Figure 92 and Figure 93 show a recommended layout of the pilot tubing. The gas train instruction manual shows the component layout and how the fittings are arranged on the purchased gas train page.
Figure 92 | Single Pilot Tubing Run 5 - 12 Sect |
Figure 91 | Gas Train, Valve Orientation |
Figure 93 Double Pilot Tubing Run 13 - 21 Sect
For installations in Canada a manual shutoff valve must be installed between the pilots.
The pilot tubing runs must be done in a neat, workman like manner. Use the provided tubing clamps and screws to attach the pilot tubing to the jacket as required.
