VIII System Piping

CAUTION

•INSTALL BOILER SO THAT THE GAS IGNITION SYSTEM COMPONENTS ARE PROTECTED FROM WATER (DRIPPING, SPRAYING, RAIN, ETC.) DURING APPLIANCE OPERATION AND SERVICE (CIRCULATOR REPLACEMENT, ETC.).

•OPERATION OF THIS BOILER WITH CONTINUOUS RETURN TEMPERATURES BELOW 120°F

CAN CAUSE SEVERE HEAT EXCHANGER CORROSION DAMAGE.

•OPERATION OF THIS BOILER IN A SYSTEM HAVING SIGNIFICANT AMOUNTS OF DISSOLVED OXYGEN CAN CAUSE SEVERE HEAT EXCHANGER CORROSION DAMAGE.

•DO NOT USE TOXIC ADDITIVES, SUCH AS AUTOMOTIVE ANTIFREEZE, IN A HYDRONIC SYSTEM.

A.Standard Heating System Piping

1)Figure 18 shows typical boiler system connections on a single zone system. Additional information on hydronic system design may be found in Installation of Residential Hydronic Systems (Pub. #200) published by the Hydronics Institute in Berkeley Heights, NJ. The components in this system and their purposes are as follows:

a.Relief valve (Required) - Install a 3/4” NPT x 3-1/2” lg. nipple in tapping “C” located on the left side of the boiler. Mount the relief valve on the end of the nipple as shown in Figure 1. The relief valve shipped with the boiler is set to open at 30 psi. This valve may be replaced with one having a pressure up to the “MAWP, WATER” shown on the rating plate. If the valve is replaced, the replacement must have a relief capacity in excess of the DOE heating capacity for the boiler.

Pipe the discharge of the relief valve to a location where water or steam will not create a hazard or cause property damage if the valve opens. The end of the discharge pipe must terminate in an unthreaded pipe. If the relief valve discharge is not piped to a drain it must terminate at least 6 inches above the floor. Do not run relief valve discharge piping through an area that is prone to freezing. The termination of the relief valve discharge piping must be in an area where it is not likely to become plugged by debris.

DANGER

•PIPE RELIEF VALVE DISCHARGE TO A SAFE LOCATION.

•DO NOT INSTALL A VALVE IN THE RELIEF VALVE DISCHARGE LINE.

•DO NOT MOVE RELIEF VALVE FROM FACTORY LOCATION.

•DO NOT PLUG RELIEF VALVE DISCHARGE.

b. Drain Valve (Required) - Install a 3/4” NPT x 3-1/2” nipple in tapping “G” located in the rear of the left end section of the boiler. Attach a 3/4” NPT pipe coupling to the end of the nipple and attach the drain valve to the end of the coupling.

c. Circulator (Required) - The best circulator location is usually on the supply piping just downstream of the expansion tank as shown in Figure 18.

d. Expansion Tank (Required) - If the expansion tank must be replaced, consult the expansion tank manufacturer’s literature for proper sizing.

e. Fill Valve (Required) - Either a manual or automatic fill valve may be used. The ideal location for the fill is at the expansion tank. On large systems with an automatic fill valve, it is recommended that a small water meter be installed in the make-up water line to monitor the amount of water added to the system.

f. Automatic Air Vent (Required) - At least one automatic air vent is required and should be located at the expansion tank. Manual vents will usually be required in other parts of the system to remove air during initial fill.

g. Low Water Cut-Off (Required in some situations) - A low water cutoff is required when the boiler is installed above radiation. In addition, some codes such as ASME CSD-1 require low water cutoffs. Codes may also require that

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Crown Boiler 16-325 500506 manual Viii System Piping, Standard Heating System Piping, 2321
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16-325 500506 specifications

The Crown Boiler 16-325 500506 is a highly reliable heating solution designed for residential and light commercial applications. Known for its robust construction and advanced technologies, this boiler is engineered to deliver efficient heating while ensuring longevity and minimal maintenance.

One of the standout features of the Crown Boiler 16-325 is its durable steel construction, which is essential for handling the high temperatures and pressures involved in heating systems. The boiler is typically equipped with a cast iron heat exchanger, known for its excellent heat retention and distribution capabilities. This ensures that the system heats up quickly and maintains consistent temperatures throughout the space.

The boiler's capacity to produce 325,000 BTUs makes it suitable for larger homes or commercial buildings with significant heating demands. Its high input capacity allows for effective operation in areas where traditional systems may struggle to keep up with heating requirements. The Crown Boiler 16-325 employs a forced hot water system, which circulates water through pipes and radiators, providing uniform heat and comfort in indoor spaces.

A significant technological advancement in this model is its integrated control system. The advanced control module automates burner operation, ensuring optimal performance while minimizing energy consumption. This technology not only enhances efficiency but also helps in reducing operational costs, making it a cost-effective choice for users.

Moreover, the Crown Boiler 16-325 is designed with ease of installation and maintenance in mind. It features convenient access panels that simplify the maintenance process, allowing technicians to perform service checks and repairs without extensive downtime. This attribute is particularly beneficial for property managers or homeowners looking for a hassle-free heating solution.

In terms of safety features, the boiler is equipped with a pressure relief valve and a low-water cutoff switch, ensuring safe operation while protecting against potential hazards associated with overheating or lack of water.

Overall, the Crown Boiler 16-325 500506 is a powerful and efficient heating solution that excels in durability and performance. With its advanced technologies, substantial heating capacity, and user-friendly design, it represents an excellent choice for those seeking a reliable heating system that combines efficiency with long-term operational savings.
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