Crown Boiler AWI162, TWI095, TWI128, TWI061, TWI162 III Before Installing, IV Locating the Boiler

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IIIBefore Installing

1)Safe, reliable operation of this boiler depends upon installation by a professional heating contractor in strict accordance with this manual and the requirements of the authority having jurisdiction.

In the absence of an authority having jurisdiction, installation must be in accordance with this manual and the National Fuel Gas Code, ANSI Z223.1-latest edition.

Where required by the authority having jurisdiction, this installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers (ANSI/ASME CSD-1)-latest edition.

2)Make sure that a properly sized chimney is available which is in good condition. Consult the authority having jurisdiction, Part VI of this manual, and the National Fuel Gas Code for additional information on venting requirements.

3)Make sure that the boiler is correctly sized:

For heating systems employing convection radiation (baseboard or radiators) use an industry accepted sizing method such as the I=B=R Heat Loss Calculation Guide (Pub. #H21 or #H22) published by the Hydronics Institute in Berkeley Heights NJ.

For new radiant heating systems refer to the radiant tubing manufacturer’s boiler sizing guidelines.

For systems including a Crown Mega-Stor indirect water heater, size the boiler to have either the DOE Heating Capacity required for the Mega-Stor or the net rating required for the heating system, whichever results in the larger boiler.

For systems that incorporate other indirect water heaters, refer to the indirect water heater manufacturer’s instruc- tions for boiler output requirements.

4)Make sure that the boiler received is configured for the correct gas (natural or LP).

5)Boilers built for installations at altitudes above 2000 ft. require different burners and main burner orifice. Make sure that the boiler is configured for use at the correct altitude.

IV Locating the Boiler

1)Clearances:

Observe the minimum clearances shown below. These clearances apply to all combustible construction, as well as noncombustible walls, ceilings and doors. Also see Figure 2.

Front – 18”

Left Side – 6”

Right Side – 6”

Rear – 6”

Top – 18”

A 24” service clearance from the jacket is recommended on the left, right, and front of the boiler. These clearances may be reduced to those shown in Figure 2, however servicing the boiler will become increasingly difficult as these service clearances are reduced.

If the right side 24” service clearance is reduced, adequate clearance must be maintained to easily read both the gauge and the limit control. Alternatively, access to the gauge and limit may be provided using a door

2)The boiler must be installed on a hard level surface. This surface may be combustible.

3)Do not install this boiler in a location where gasoline or other flammable vapors or liquids will be stored or used. Do not install this boiler in an area where large amounts of airborne dust will be present, such as a workshop.

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Contents Crown Inside Front Cover Leave Blank Table of Contents II SpecificationsProduct Description Bleftpipedconfiguration Specifications III Before Installing IV Locating the BoilerAir for Combustion and Ventilation For Buildings of Other than Unusually Tight ConstructionExample For Buildings of Unusually Tight Construction ALL AIR from Outdoors Ventilated Crawl Space and AtticALL AIR from OUTDOORS, Using Openings Into Boiler Room VI VentingTypicalventsystem Installation and Components Removing an Existing Boiler from a Common Chimney 1210VII Gas Piping GAS Connection to BoilerViii System Piping StandardPipingPiping for Special Situations Standard Boiler PipingIndirect Water Heater Boiler Bypass Piping IX Wiring Single Zone WiringWiring DIAGRAM, Continuous Ignition Wiring Variations Circulator Zonewiring Using HONEYWELLR845AsAWI/TWI Control System Sequence of Operation Sequence of Operation, Standing PilotSequence of Operation, Intermittent Ignition Start-up and Checkout Page Standing Pilot Burner Flame For Your Safety Read Before Operating For Your Safety Read Before Lighting GAS Valve Detail Standing Pilot XI Service and Maintenance Heat Exchanger Cleaning Procedure XII Troubleshooting AWI/TWI Troubleshooting Chart END Standing Pilot Ignition System Troubleshooting Chart Intermittent Ignition System Troubleshooting Chart Xiii Parts Base-Block-Hood Below 2000 ft Burner Components KEY # Description QTY. or Quantity PER Boiler or Crown P.N Jacket/Components Crown

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.