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Stromquist & Company Blog

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7/10/2026 2:19 PM
Learn how to address common combustion troubleshooting problems when multiple flame rods fail to detect a flame signal.Why it matters: Misdiagnosed flame rod failures often indicate larger system issues like poor grounding or burner corrosion, which can lead to...
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Posted By: reid@stromquist.com
7/1/2026 2:32 PM
Johnson Controls announced the end-of-life (EOL) for select EasyIO hardware and the CPT engineering tool, urging stakeholders to understand deadlines and plan ahead.Why it matters: Building owners, contractors, and system integrators must make informed decisions before the...
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7/1/2026 11:59 AM
This is a Summary of the article below:
In this article, we break down what Honeywell chart recorders are, how paper and paperless recorders differ, where they're used, and why many facilities still rely on them—even with...
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6/26/2026 3:47 PM
Summary of the article below:
The PENN System 550 is a modular HVAC-R controller that combines temperature, humidity, and pressure control with built-in A2L refrigerant leak detection in one platform. It simplifies installation by replacing multiple controllers...
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6/26/2026 3:17 PM
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The Honeywell Engineering Starter Kit (ESK) 2.0 helps you get Honeywell Optimizer controllers up and running faster. It comes with pre-built HVAC applications for systems like VAV boxes and...
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6/23/2026 5:31 PM
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A Honeywell UDC (Universal Digital Controller) is a standalone controller used to automatically maintain temperature, pressure, flow, humidity, and other process variables. It uses PID control to compare the actual process...
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6/18/2026 10:42 AM
Lubricated plug valves, also known as lubricated plugcocks, provide a reliable manual shutoff option for gas trains, combustion systems, and industrial applications.Why it matters: These valves offer a rugged alternative to standard ball valves, trusted in demanding environments for...
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6/16/2026 9:48 AM
Summary of the article below:
Walk into almost any mechanical room, rooftop unit, pump skid, cooling tower, or air handler and you'll find one or more devices whose job is to control an electric motor. While they may...
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6/15/2026 4:22 PM
This blog dives into the distinct types of sight glasses and observation ports used in HVAC, boiler, combustion, and refrigeration systems.Why it matters: Understanding the unique functions of boiler gauge glasses, burner observation ports, and refrigeration sight glasses is...
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6/9/2026 2:35 PM
Customers can now gain clear insights into what PE and EP devices do in HVAC pneumatic control systems.Why it matters: Understanding the difference between pneumatic-to-electric and electric-to-pneumatic devices is crucial for technicians.The blog provides...
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6/5/2026 12:47 PM
Summary of the Article below :
In this article you will learn Data centers are demanding more metering and monitoring than ever before. Driven by AI, cloud computing, and sustainability goals, modern facilities rely on advanced instrumentation, real-time data...
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6/4/2026 1:41 PM
Customers should note the updated warranty return policy for HW Trade and Thermal Solutions products, which now requires contacting the manufacturer’s technical support team to obtain a case number before issuing an RMA.
Why it matters: Following this...
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6/2/2026 11:12 AM
Quick Summary of the article below:
In this article you will learn about a blower wheel and an impeller are often the same component, but the terms are used differently depending on the context. In HVAC systems, technicians typically...
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5/27/2026 2:33 PM
This blog breaks down Honeywell’s retirement of dozens of legacy analog sensors, thermostats, wall modules, pressure transmitters, and HVAC control products that are still widely used across building automation and mechanical systems. Customers will learn which product families are...
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Posted By: reid@stromquist.com
5/27/2026 9:53 AM
Honeywell is retiring the T675F1040/B Remote Temperature Controller, impacting contractors, facility teams, and building owners.Why it matters: Understanding the discontinuation timeline and replacement options is crucial to avoid disruptions.Transitioning to new controllers requires knowledge of the differences...
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Posted By: reid@stromquist.com
5/18/2026 1:05 PM
Understanding the difference between Direct Acting and Reverse Acting valves is crucial for those in hydronic systems, building automation, or HVAC control valves.Why it matters: Knowing the correct valve action can save hours of troubleshooting and prevent expensive commissioning...
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Posted By: reid@stromquist.com
5/12/2026 5:25 PM

This blog breaks down three of the most common pneumatic HVAC controllers—Receiver Controllers, Velocity Controllers, and Reset Volume Controllers—and explains what each one does, where it’s typically used, and how it operates within older pneumatic systems...
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5/7/2026 4:02 PM
This blog is designed to help contractors, engineers, and facility professionals better understand the different control valve pipe connection types commonly found in hydronic HVAC systems—from threaded and sweat connections to flanged, grooved, union, and press-fit options. Readers...
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Posted By: reid@stromquist.com
5/7/2026 2:27 PM
If you are trying to decide between a pressure transmitter and a pressure transducer, this guide will help simplify the selection process. In this blog, you will learn how each device works, why output signal—such as 4–20 mA...
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5/6/2026 11:40 AM
The Belimo LINK.10 is a smart, versatile tool for anyone working with Belimo's communicative product line. It eliminates the compatibility headaches between devices with and without NFC, works on powered and unpowered equipment, and fits seamlessly into the...
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4/28/2026 11:05 PM
IAQ in HVAC stands for Indoor Air Quality.What it meansIndoor Air Quality refers to the condition of the air inside a building—especially as it relates to the health, comfort, and productivity of occupants
Let's dive into...
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