Gas Pressure Adjustment | Patterson-Kelley MACH-05 specs

Patterson-Kelley MACH-05 manual Gas Pressure Adjustment

MACH® Series Gas-Fired Boiler	Installation

Analog Input to Adjust Setpoint:

Analog Input to Control Firing Rate:

Analog Input Setpoint

	200
Setpoint	150
Setpoint	100
B oiler	100
B oiler
	50
	0
	0	1	2	3	4	5	6	7	8	9	10

V oltage

Boiler Setpoint

Non adjustable Curve

Analog Input Firing Rate

	100
	90
	80
	70
Rate	60
Rate	50
Firing	50
	40

	30
	20
	10
	0
	0	1	2	3	4	5	6	7	8	9	10
						V oltag e

The control must be configured for a remote analog input setpoint according to the following table:

Item	Parameter	Value	Allowable
		°F	Range °F

Maximum Setpoint	4	180	68-185

Minimum Setpoint	5	80	60-140

Boiler Configuration	34	03

The setpoint of the boiler is controlled by an external 0-10 VDC signal. A signal of at least 0.5 VDC is required to start the boiler. At 0 VDC the setpoint is 32° F; at 10 VDC the setpoint is 212° F. This setpoint is low and high limited by maximum and minimum setpoint parameters. The controlled setpoint voltage range narrows when these limits are used. If the above tables values are used the boiler setpoint will be 80° F when the voltage is anything less than approximately 3 VDC. It will then increase linearly with voltage until approximately 8.5 VDC when it will be 180° F. The setpoint will remain at 180° F even if voltage is increased further.

The control must be configured for analog input direct drive by setting parameter 34 to 02.

The firing rate of the boiler is controlled by an external 0 to 10 VDC signal. At a voltage greater than 0.5 VDC the boiler turns on and runs at low fire until 1.8 VDC is reached. The firing rate increases linearly with voltage until high fire is reached at 10 VDC. The boiler setpoint Parameter 4 remains active to shut down the boiler when the temperature in the boiler exceeds this value plus the high temp differential. These voltage levels, as explained above, are all “non-adjustable”.

3.12.2 Gas Pressure Adjustment

Note: Adjustments shall only be performed by service representative specifically trained and certified to perform maintenance on the Patterson-Kelley MACH Series boiler.

See rating plate for the minimum and maximum gas pressure of the boiler. Each boiler is furnished with a manual shut-off valve which has an integrated test port.

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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.