6)Assembly of Heat Fab Saf-T Vent EZ Seal:

a)Saf-T Vent General Notes:

These instructions cover the installation of Saf-T Vent EZ Seal. Saf-T Vent EZ Seal piping has integral gaskets installed in the female ends of the pipe which seal the joints.

In general, Saf-T Vent pipe sections may not be cut. Exceptions to this are the Saf-T Vent slip connector and connections to the boiler vent collar and Crown coaxial terminal. In these cases, use a sharp pair of aviation snips, an abrasive cut-off, or a plasma cutter. See the Saf-T Vent instructions for information on cutting the slip connector.

Orient Saf-T Vent components so that the arrows on the piping labels are in the direction of flue gas flow.

Support horizontal piping sections at intervals of 6 feet or less.

Vertical venting systems must be supported by at least one Heat Fab support. An additional vertical support is required after any offset.

b)Connection to Boiler – Start assembly of the vent system at the boiler. Remove the hose clamp shipped on the CWD vent collar. Bend the three hose clamp tabs on this collar outward slightly. Cut the male “spigot” off of the first piece of pipe (Fig 21). If necessary, crimp the cut end of the pipe so that it can be inserted at least 1” into the collar. Clean the exterior of the male end of the first piece of pipe and the inside of the vent collar on the boiler with an alcohol pad. On the male end of the pipe, apply a ¼” wide bead of high temperature silicone approximately ½ inch from the male end of the pipe. Also apply a ¼” bead of silicone along the first 2 ½” of the longitudinal weld. Insert the male end of the pipe into the boiler vent collar until it bottoms out. Apply an additional bead of silicone over the outside of the joint and smooth out (Fig 21). Apply silicone over the seams in the vent collar. Replace and tighten the clamp on the vent collar.

c)Assembly of Saf-T Vent EZ Seal Vent Components - Clean the male end of the next piece of pipe with an alcohol pad and make sure that it is free of burrs. Check the female end of the first piece of pipe to make sure that the gasket is in place and is undamaged. Using a slight twisting motion, insert the male end of the second fitting into the female end of the first fitting, taking care not to dislodge or cut the factory gasket. In extremely arid conditions, it may be easier to assemble these fittings if the gasket is moistened with water prior to assembly. Bend the locking tabs over the locking ring on the adjacent piece of pipe. Repeat these steps for the remaining Saf-T-Vent components. If a termination elbow is used, use this procedure to complete the exhaust system.

d)Connection of Saf-T Vent to Crown coaxial terminal - Cut the locking tabs off of the female end of the Saf-T Vent pipe to be joined to the co-axial terminal. Apply a ¼” bead of silicone around the terminal connection about ¼” from the end. Slip the Saf-T Vent pipe over the terminal and apply a second bead of silicone over the joint. Silicone must be applied even though there is a gasket on the female end of the pipe. Smooth the excess silicone over the joint, making sure that there are no visible voids in the silicone. Tighten the terminal clamp. Allow the silicone to cure per the silicone

FIGURE 21: SAF-T VENT EZSEAL CONNECTION TO VENT COLLAR

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Crown Boiler CWD193, CWD083, CWD220, CWD060, CWD165, CWD138, CWD245, CWD110 SAF-T Vent Ezseal Connection to Vent Collar

CWD193, CWD165, CWD245, CWD220, CWD110 specifications

Crown Boiler Company is well-known for its commitment to quality and performance in the heating industry. Among its extensive range of products, the Crown Boiler CWD series stands out for its reliability and efficiency. This series includes models CWD060, CWD083, CWD110, CWD138, and CWD220, each designed to meet diverse heating needs in residential and commercial applications.

One of the main features of the CWD series is its durable construction. Made with high-quality materials, these boilers are built to withstand the test of time. The cast iron heat exchanger delivers exceptional heat retention and efficiency, ensuring optimal performance even in demanding conditions. Additionally, the CWD models are equipped with a reliable standing pilot ignition system, which enhances user safety and operational reliability.

Another important characteristic of the Crown CWD series is its versatility in fuel options. These boilers can operate on either natural gas or propane, providing flexibility to homeowners and businesses depending on their preferred energy source. The ability to easily switch fuels makes these units adaptable to various heating applications, maximizing convenience for users.

Efficiency is a cornerstone of the Crown Boiler CWD series. With an AFUE rating of up to 85%, these boilers deliver substantial cost savings over the heating season. Their efficient operation not only lowers energy bills but also contributes to a reduced environmental impact, which is increasingly important in today’s energy-conscious world.

Crown’s innovative design features also include a low water cut-off and a built-in draft hood. The low water cut-off ensures safe operation by preventing the boiler from running dry, while the draft hood allows for optimal venting capabilities, minimizing the risk of dangerous flue gas build-up.

Maintenance is straightforward with the CWD series, thanks to its easy-access design. Routine service and inspections can be performed with minimal disruption, ensuring that the units maintain peak performance over their lifespan.

The Crown Boiler CWD060, CWD083, CWD110, CWD138, and CWD220 models exemplify the brand’s dedication to delivering high-quality heating solutions. With their impressive efficiency ratings, durable construction, versatile fuel options, and user-friendly features, these boilers represent a smart investment for anyone looking to enhance heating reliability and comfort in their space.