MACH® Series Gas-Fired Boiler

Installation

 

 

If air is taken from another interior space, each opening should have a net free area of 1 square inch for each 1,000 Btu per hour of boiler input (450 square inches for a 450,000 Btu per hour.)

3.6FLUE VENTING

This boiler requires a special vent system. This boiler is not certified for use with Type "B" vent.

This boiler is Category IV (condensing – positive pressure) as it is defined in ANSI Z21.13/CSA 4.9, latest edition. The vent material must be listed Category IV vent pipe (316L or AL29-4C Stainless Steel) and comply with UL 1738 or UL103. In Canada it must comply with ULC-636. The exhaust vent can be run horizontally or vertically.

Vent installations shall be in accordance with Part 10, Venting of Equipment, of the National Fuel Gas Code, ANSI Z223.1 or CSA B.149 code, or applicable provisions of the local building codes.

The venting system and the horizontal portions of the venting system shall be supported to prevent sagging.

The vent must be sized according to the vent manufacturer’s recommendations. Consult your vent supplier for correct sizing and structural support requirements. Design calculations should be based on a maximum of 0.22" W.C. total frictional resistance in the stack (measured at the boiler flue gas discharge), with a stack temperature of 210° F (gross) and a CO2 level of 9% (natural gas) or 10.4% (propane). These values are to be used for vent sizing calculations.

The installation of a bird screen on the vent termination is recommended. Consult your local vent manufacturer for proper sizing.

3.6.1 Barometric Damper

WARNING!

Do not use a barometric damper with this boiler. (This is a positive pressure system; combustion gas may leak into the room.)

3.6.2 Flue Connection

The connection from the boiler to the vent should be as direct as possible and the upward slope of any horizontal breaching should be at least 1/4 inch per linear foot. The 300 and 450 vent connection incorporates a 4° slope toward the boiler to facilitate pitching of the vent for condensate collection. This boiler should not be connected into any portion of another mechanical draft system operating under positive pressure without consulting your local venting representative. Provisions must be made for supports to prevent contact of the vent with combustible surfaces.

Note: If the vent is erected directly behind the boiler, make sure that the weight of the vent is not supported by the boiler vent collar. The collar is not designed to support the weight of the vent. Structural support and spacing from combustible surfaces must be in accordance with the vent manufacturer's requirements.

Sidewall

Pitch toward boiler 1/4" per foot minimum.

4 degree slope toward boiler, approx. ¾” per foot.

Flue Connection at Boiler

3.6.3 Required Clearances

Provide clearances between combustion air intake, exhaust vent, roof and wall surfaces, doors and window, and snow line as shown in the following diagrams. The exhaust vent termination must be 14 feet above grade when located adjacent to a public walkway. It must also have a minimum 6 foot horizontal and 6 foot vertical clearance (above or below) any electric meters, gas meters, regulators, or relief equipment.

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Patterson-Kelley MACH-05 manual Required Clearances, Flue Connection at Boiler
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MACH-05 specifications

The Patterson-Kelley MACH-05 is an innovative high-efficiency boiler designed to meet the demanding needs of today’s commercial and industrial applications. Known for its remarkable performance and advanced technologies, the MACH-05 stands out in the market with its ability to provide reliable heating solutions while minimizing energy consumption and environmental impact.

One of the key features of the MACH-05 is its cascading capability. This allows multiple units to be linked together for enhanced capacity and redundancy. By operating in a modular system, users can achieve optimal energy efficiency by adjusting the number of active units based on real-time demand. This ensures that the system operates at peak efficiency, increasing overall reliability and reducing operational costs.

The MACH-05 is equipped with a fully modulating burner system, which ensures precise control of output and efficiency across a broad range of operating conditions. This advanced burner technology facilitates a significant reduction in fuel usage compared to traditional fixed-output systems. Combined with its high thermal efficiency rating, the MACH-05 is not only environmentally friendly but also economically advantageous for facilities looking to lower energy expenses.

In terms of construction, the MACH-05 features a compact, lightweight design that allows for easy installation and integration into existing systems. Its stainless steel heat exchanger is built to provide superior durability and resistance to corrosion, ensuring a long operational lifespan and reducing maintenance requirements. This design advantage translates into lower lifecycle costs for end-users.

The boiler also incorporates intelligent control systems that enhance operational efficiency. These controls can monitor and adjust parameters in real-time, optimizing performance and offering detailed diagnostics to anticipate maintenance needs. The user-friendly interface makes it easy for operators to manage the system and access vital information regarding performance metrics.

Additionally, the MACH-05 is designed with safety in mind, featuring multiple safety controls and alarms that function to protect both the equipment and personnel. This commitment to safety ensures that facilities can operate with peace of mind, knowing that they have a reliable and secure heating solution.

In summary, the Patterson-Kelley MACH-05 combines advanced engineering, efficiency, and safety features to provide a versatile and dependable heating solution. Its key advantages, including cascading capabilities, fully modulating burner technology, and intelligent controls make it an ideal choice for commercial and industrial applications, paving the way toward sustainable and cost-effective heating systems.
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