7)Do not connect the boiler into a chimney flue serving an open fireplace or other solid fuel appliance.

8)Prior to boiler installation, inspect chimney for obstructions or other defects and correct as required. Clean chimney as necessary.

9)Vent pipe should slope upward from draft diverter not less than one inch in four feet. No portion of vent pipe should run downward or have sags. Vent pipe must be securely supported.

10)The vertical section of vent pipe coming off the boiler should be as tall as possible, while still maintaining the proper clearance from the horizontal vent connector to combustibles and the proper pitch called for in (9) above.

11)Vent pipe should be installed above the bottom of the chimney to prevent blockage.

12)Vent pipe must be inserted flush with inside face of the chimney liner and the space between vent pipe and chimney sealed tight.

13)Do not install the vent damper in any portion of the vent system which is used by appliances other the boiler being installed.

14)Vent damper installation is mandatory on all AWI/TWI boiler models due to federally mandated efficiency regulations. Install vent damper (see Figure 9) as follows:

a)Open vent damper carton and remove installation instructions. Read the instructions thoroughly before proceeding. Verify that vent damper is same size as draft diverter outlet. See Figure 1. Unpack vent damper carefully. Do not force closed damper blade. Forcing vent damper closed may result in damaged gear train and void warranty.

b)Vent damper is factory shipped having approximately ¾” diameter hole in the vent damper blade, which must be left open for boilers equipped with standing pilot, and should be plugged on boilers with EI control system, using the plug supplied with the damper.

Mount the vent damper on the flue collar without modification to either and secure with sheet metal screws. Make sure screws do not interfere with damper blade operation. Vent damper blade position indicator must be visible to users.

c)The damper wire harness is shipped wired into the boiler limit control. Plug the loose end of this harness into the damper and secure the flexible conduit to the damper using a connector nut provided.

Provide adequate clearance to combustible construction and servicing.

d)Install vent connector pipe and vent fittings from vent damper outlet to chimney or gas vent. Secure with sheet metal screws and support as required.

RIGHTSIDEVIEW

FIGURE 9: VENT DAMPER INSTALLATION DETAILS

Removing an Existing Boiler from a Common Chimney

In some cases, when an existing boiler is removed from a common chimney, the common venting system may be too large for the remaining appliances. At the time of removal of an existing boiler the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining

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Crown Boiler AWI295, TWI095, TWI128, TWI061, TWI162, AWI061, AWI195 Removing an Existing Boiler from a Common Chimney, 1210
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AWI262, AWI095, TWI095, AWI195, AWI037 specifications

Crown Boiler is a renowned name in the heating industry, providing high-quality, efficient heating solutions that cater to various residential and commercial needs. Among its impressive lineup, the AWI and TWI series stand out for their design, technology, and performance.

The Crown Boiler AWI061 and TWI061 are part of the Hydronic Boiler range, designed to deliver efficient hot water heating. The AWI series features an advanced pressure-jet design that allows it to operate with exceptional fuel efficiency, reducing operating costs for homeowners and businesses alike. Additionally, these models come equipped with an integrated pump system that ensures a consistent supply of hot water, making them ideal for both space heating and domestic hot water applications.

Meanwhile, the AWI162 and AWI128 models are engineered for higher output, addressing larger heating needs without compromising efficiency. These models showcase a robust heat exchanger made of durable cast iron, promoting longevity and effective heat transfer. The AWI series boilers feature a modern control system that allows for precise temperature management, enhancing comfort while minimizing energy consumption.

The Crown Boiler AWI295, on the other hand, steps up with a significant heating capacity suited for commercial applications. This model is designed with advanced safety and efficiency technologies, including an intelligent control module that monitors temperature and pressure, ensuring optimal performance while preventing malfunctions. The large water volume design allows for enhanced thermal stability and consistent heating output.

A notable characteristic across these models is their ease of installation and maintenance. Crown Boiler has engineered the units with user-friendly features, including accessible components and simplified diagnostics that help technicians service the boilers swiftly. Moreover, the durability of cast iron construction ensures that these units can withstand high thermal stress while delivering reliable performance over the years.

In summary, Crown Boiler’s AWI061, TWI061, AWI162, AWI128, and AWI295 models offer a range of solutions equipped with advanced technologies and features designed for efficiency and reliability. These boilers are suitable for diverse heating needs, promising optimal comfort and convenience in both residential and commercial settings. With Crown Boiler's longstanding commitment to quality, customers can be assured of a robust heating solution backed by exceptional service.
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