Crown Boiler TWZ075, TWZ200, TWZ090, TWZ125, TWZ065, TWZ175, TWZ150, TWZ100, TWZ120 2625

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IMPORTANT

•CLEAN THE BOILER EVEN IF THERE ARE NO SIGNIFICANT SOOT DEPOSITS. FAILURE TO REMOVE ALL SULFUR AND ASH DEPOSITS ANNUALLY CAN CAUSE SEVERE CORROSION DAMAGE.

•WHEN CLEANING THE REAR FLUE PASSAGE, BE CAREFUL NOT TO PUSH THE BRUSH TOO FAR BEYOND THE BOTTOM OF THE PINS. DOING SO MAY DAMAGE THE TARGET WALL.

3)Inspect the vent system:

a)Make sure that the vent system is free of obstructions and soot.

b)Make sure that all vent system supports are intact.

c)Inspect joints for signs of condensate or flue gas leakage.

d)Inspect venting components for corrosion or other deterioration. Replace any defective vent system components.

4)Service the oil burner:

a)Replace oil nozzle with identical make and model (see Table 3).

b)Inspect the electrodes. Replace if they are deteriorated. Make sure that the electrode position is set according to the burner manufacturer’s instructions.

c)Remove and clean fuel pump strainer.

d)Remove any accumulations of dust, hair, etc. from the air shutter, blower wheel, and other air handling parts of the burner.

5)Replace the fuel oil line filter element and gaskets.

6)Inspect all oil piping and fittings for kinks and leaks. Repair any found.

7)Inspect the hydronic piping, tankless coil gasket, and boiler plugs for water leaks. Repair any leaks found immediately.

8)Verify operation of relief valve by manually lifting lever; replace relief valve immediately if valve fails to relieve pressure.

9)Open fuel line shut-off valve(s) and restore electrical power to the boiler.

10)Fire the boiler and check it out using the procedure outlined in “Start-up and Checkout” . This must include checking the burner adjustments using instruments. Check for proper operation of all controls.

CAUTION

WATER LEAKS CAN CAUSE SEVERE CORROSION DAMAGE TO THE BOILER OR OTHER SYSTEM COMPONENTS. REPAIR ANY LEAKS FOUND IMMEDIATELY.

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Contents TWZ Series Product Description Table of ContentsII Specifications III Before Installing General SpecificationsIV Locating the Boiler Frontview Side View Air for Combustion and Ventilation For Buildings of Other than Unusually Tight ConstructionBoiler Installed in Confined Space ALL AIR from Inside For Buildings of Unusually Tight ConstructionALL AIR from Outdoors Ventilated Crawl Space and Attic ALL AIR from OUTDOORS, Using VI Venting 109Minimum Recommended Breeching Chimneysize 1110VII System Piping StandardPiping1312 Piping for Special Situations 1413Isolation of Boiler from System Viii Tankless Heater Piping 1615IX Fuel Line Piping 17161817 ONE-PIPE Lift System1918 TWO-PIPE Gravity Feed SystemWiring Variations WiringSingle Zone Wiring 2019Wiring DIAGRAM, Single Heating Zone only XI Start-up and Checkout 22212223 2423 Boiler ModelXII Service and Maintenance 25242625 Avoid Breathing Fiber Particulates and Dust 27262827 KEY # Description QTY. or Quantity PER Boiler or Crown P.NPage 3029 Quantity PER Boiler or Crown P.N3130 PN980270 Rev609/10

TWZ150, TWZ125, TWZ065, TWZ075, TWZ100 specifications

Crown Boiler, known for its solid and reliable heating solutions, has designed the TWZ series to provide effective heating for both residential and commercial applications. The models in this series—TWZ090, TWZ120, TWZ175, TWZ200, and TWZ100—offer varying capacities and features tailored to meet diverse heating needs.

One of the key features of the TWZ series is its efficiency. These boilers are designed with a cast-iron heat exchanger that maximizes thermal efficiency, allowing for optimal heat transfer. This not only helps in reducing energy consumption but also ensures that the home remains warm and comfortable during the colder months. With an annual fuel utilization efficiency (AFUE) rating that can reach up to 85%, users can expect lower energy bills as well.

Each model in the TWZ series is equipped with a durable and robust construction. The cast iron sections provide increased resistance to wear and tear, making the TWZ series a long-lasting solution for heating needs. This is particularly beneficial for users looking for reliability over time, as the longevity of these boilers reduces the need for frequent replacements.

In terms of technology, the TWZ series features advanced controls that enhance functionality and ease of use. These boilers are compatible with various heating control systems, allowing users to fine-tune their heating setup according to their specific requirements. The inclusion of a flame safeguard system further ensures safety during operation, reducing the risk of malfunctions and improving overall reliability.

The TWZ series is designed for easy installation and maintenance. With options for direct venting or conventional chimney venting, homeowners and installers can choose the most suitable configuration for their properties. Additionally, the maintenance access points on these boilers make routine service checks simple and efficient, ensuring that the boilers remain in optimal condition.

Another important characteristic of the Crown Boiler TWZ series is its quiet operation. Advanced engineering minimizes noise production, making these boilers ideal for residential settings where peace and comfort are valuable.

In conclusion, the Crown Boiler TWZ090, TWZ120, TWZ175, TWZ200, and TWZ100 models offer a compelling combination of efficiency, durability, advanced technology, and user-friendly features. Whether for residential or light commercial use, they represent an excellent choice for anyone seeking reliable heating solutions.
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