3432

8)Upon initial start-up, the gas train will be filled with air. Even if the gas line has been completely purged of air, it may take several tries for ignition before a flame is established. Once a flame has been established for the first time, subsequent calls for burner operation should result in a flame on the first try.

9)Observe pilot burner flame. See Figure 23. The pilot flame should be a steady medium blue flame covering around 3/8” to ½” of the spark electrode / flame rod.

10)Inspect the main burner flames visible through the observation port in burner access panel. The flame should be stable and mostly blue. See Figure 24. No yellow tipping should be present; however, intermittent flecks of yellow and orange in the flame are normal.

11)Check entire gas train for leaks using soap and water or other approved leak detection method while boiler is firing. Fix any leaks found immediately.

WARNING

•NEVER USE A FLAME TO CHECK FOR GAS LEAKS.

•MAKE SURE THAT THE AREA AROUND THE BOILER IS CLEAR AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE, AND OTHER FLAMMABLE VAPORS AND LIQUIDS.

12)Run the gas valve safety shutdown test with the main burners firing. Disconnect ignition cable from the ignition module on the boiler. Both the pilot burner and main burners should stop firing.

13)Check the manifold pressure and adjust if necessary. To do this, use the following procedure:

WARNING

FAILURE TO FOLLOW THE FOLLOWING PROCEDURE EXACTLY COULD RESULT IN OVER-FIRING OF THE BOILER AND A CARBON MONOXIDE HAZARD.

a.Connect a manometer to the inlet pressure tap on the gas valve (See Figure 25).

b.Check the inlet pressure with all gas appliances on and off. The inlet pressure at the inlet of each gas valve must be within the following limits regardless of what combination of appliances is firing:

Inlet Press (inches w.c.)	Natural Gas	LP Gas
Min.	5.0	11.0
Max.	14.0	14.0

If the inlet pressure falls outside of these limits, find and correct the cause of the problem before proceeding further.

c.Connect a manometer to the manifold (outlet) pressure tap on the gas valve on the first base module. See Figure 25.

d.Read the manifold pressure. It should be set at:

	Natural Gas	LP Gas
Manifold Pressure (inches w.c.)	3.5	10.0

e.If a manifold pressure adjustment is needed, make the adjustment by turning the pressure regulator screw (See Figure 25) clockwise to raise the pressure and counter clockwise to reduce the pressure. If a manifold pressure adjustment is made, recheck the line pressure to be certain that it is still within acceptable limits.

f.Replace the cover screw on the regulator.

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.