III. Water Piping and Trim

CAUTION

Failure to properly pipe boiler may result in improper operation and damage to boiler or building.

A.Design and install boiler and system piping to prevent oxygen contamination of boiler water.

CAUTION

Oxygen contamination of boiler water will cause corrosion of iron and steel boiler components, and can lead to boiler failure. Burnham's standard warranty does not cover problems caused by oxygen contamination of boiler water.

Oxygen contamination sources are system leaks requiring addition of makeup water, fittings, and oxygen permeable materials in distribution system. Eliminate oxygen contamination by repairing system leaks, repairing fittings, and using nonpermeable materials in distribution system.

B.Connect system supply and return piping to boiler. See Figure 3. Also consult I=B=R Installation and Piping Guides. Maintain minimum ½ inch clearance from hot water piping to combustible materials.

C.Install Circulator with flanges, gaskets and bolts provided. Five foot circulator harness allows circulator to be mounted on supply or return. Connect harness to circulator and secure any excess conduit.

D.Install Safety Relief Valve. See Figure 3. Safety Relief Valve must be installed with spindle in vertical position. Installation of the relief valve must be consistant with the ANSI/ASME Boiler and Pressure Vessel Code, Section IV.

WARNING

Safety relief valve discharge piping must be piped near floor to eliminate potential of severe burns. Do not pipe in any area where freezing could occur. Do not install any shut-off valves.

E.Install Drain Valve in ¾" NPT connection in tee provided. See Figure 1.

F.Space heating and domestic water heating with Alliance water heater. Install Alliance water heater as a separate heating zone. Refer to Alliance Installation, Operating and Service Instructions for additional information.

G.If boiler is used in connection with refrigeration systems , boiler must be installed with chilled medium piped in parallel with the heating boiler using appropriate valves to prevent chilled medium from entering boiler, see Figure 4. Also consult I=B=R Installation and Piping Guides.

H.If boiler is connected to heating coils located in air handling units where they may be exposed to refrigerated air, boiler piping must be equipped with flow control valves to prevent gravity circulation of boiler water during operation of cooling system.

I.Use a boiler bypass if the boiler is to be operated in a system which has a large volume or excessive radiation where low boiler water temperatures may be encountered (i.e. converted gravity circulation system, etc.).

Install pipe tee between circulator and boiler return along with second tee in supply piping as shown in Figure 3. Bypass should be same size as the supply and return lines with valves located in bypass and supply outlet as illustrated in Figure 3 in order to regulate water flow to maintain higher boiler water temperatures.

After the boiler is operational (reference Section VII. System Start-Up) set by-pass and boiler supply valves to half throttle position to start. Operate boiler until system water temperature reaches normal operating range. Adjust valves to provide 180° to 200°F supply water temperature. Opening the boiler supply valve will raise system temperature, while opening the by-pass valve will lower system supply temperature.

J.A hot water boiler installed above radiation level must be provided with a low water cut-off device as part of installation.

K.Oil, grease, and other foreign materials which accumulate in new hot water boilers and a new or reworked system should be boiled out, and then thoroughly flushed. A qualified water treatment chemical specialist should be consulted for recommendations regarding appropriate chemical compounds and concentrations which are compatible with local environmental regulations.

L.After the boiler and system have been cleaned and flushed, and before refilling the entire system add appropriate water treatment chemicals, if necessary, to bring the pH between 7 and 11.

20_PV_I specifications

The Burnham 20_PV_I is a high-efficiency, versatile heating solution designed for residential and commercial applications. Renowned for its performance and reliability, the Burnham 20_PV_I is a notable choice for those seeking an effective way to heat their spaces.

One of the standout features of the Burnham 20_PV_I is its innovative design, which incorporates a range of advanced technologies to maximize thermal efficiency. The boiler operates using a proven cast iron heat exchanger that ensures optimal heat transfer. This not only allows for rapid heating but also contributes to the longevity of the unit. With a heating capacity of 20,000 BTUs, it is well-suited for medium-sized spaces, making it ideal for heating homes or small businesses.

Efficiency is a key attribute of the Burnham 20_PV_I, which boasts an impressive AFUE (Annual Fuel Utilization Efficiency) rating. This high efficiency translates into lower fuel consumption, resulting in reduced energy bills for users. The boiler is designed to operate with various fuel types, accommodating natural gas and propane options, which provides flexibility depending on regional availability and price factors.

Another notable characteristic of the Burnham 20_PV_I is its user-friendly control system. The boiler features an integrated digital control panel that allows users to easily set desired temperatures and monitor system performance. This level of control enhances comfort while also enabling owners to proactively maintain efficiency.

In terms of installation, the Burnham 20_PV_I is designed with convenience in mind. Its compact dimensions allow it to be installed in various locations, including basements and utility rooms, without taking up excessive space. Plus, the unit's lightweight construction facilitates easier handling during the installation process.

Safety is paramount in the design of the Burnham 20_PV_I, which includes multiple safety features such as a high limit temperature control, pressure relief valve, and robust emergency shutoff systems. These features ensure reliable operation and peace of mind for users.

Overall, the Burnham 20_PV_I stands out as a robust, efficient, and user-friendly heating solution. With its advanced technologies, impressive efficiency ratings, and committed focus on safety and reliability, it represents an excellent investment for anyone looking to enhance their heating systems, providing warmth and comfort for years to come.