The Model P8SE light commercial air conditioner is a three-phase electric/electric packaged cooling solution. It delivers 14-SEER cooling in capacities ranging 3-5 ton in even tonnages, making it fit for strip malls, restaurants, and retail stores. 

Every year, The NEWS introduces the latest cooling equipment available for the upcoming summer season in order to help contractors prepare for this busy period by doing the research that will help them to distinguish between brands. The coverage features specific information about each individual product as submitted by the manufacturers.

The units feature an exact-fit replacement design that matches the units to footprints of other manufacturers’ units and eliminates the need for a curb adapter.

Fujitsu’s Technical Service Advisors event was held to strengthen manufacturer-distributor relationships and empower in-field technical support staff.

There’s no doubt the connectivity of mobile devices has made our personal lives more convenient, but now they’re also helping make technicians more efficient, thanks to tool manufacturers developing wireless-enabled devices and test and measurement apps for download.

Many new testing and monitoring products were on display last month at the AHR Expo in Orlando, Florida, where manufacturers showcased and demonstrated their newest, smartest products.

Just like bees return to the hive every day for sunset, Yellow Jacket has habitually returned to the AHR Expo every January for the past 45 years.

Investing in the right tools will save your employees’ time and avoid delaying repairs in the rush of summer.

Contractors are seeking tools that are equipped to handle A2L refrigerants, offer Bluetooth and wireless compatibility, operate efficiently, save the user time, and are safe to utilize.

Our new website has been launched today. Tell your visitors why you have started a new presentation and how it benefits them. Mention your goals and project advantages. Try to briefly give your visitors reasons why they should return to your pages.

NASRC has launched a workforce development program that focuses on recruitment, training, and retention, in order to combat the critical shortage of refrigeration technicians. 

Four marketing coaches share what makes an HVAC contractor stand out to potential customers.

With the election of Donald Trump to President of the United States, the HVAC industry is wondering how this will affect the Inflation Reduction Act incentives.

Contractors who are embracing the technological advancements say ignoring a new neighborhood of home automation products could be a big mistake.

Daikin Applied’s recently introduced SiteLine Building Controls gives building owners and operators the tools and insights needed to optimize performance, improve IAQ, and trim energy use and carbon emissions.

Johnson Controls acquired zero trust cybersecurity provider, Tempered Networks, based in Seattle, Washington.

Cochrane Supply & Engineering offers products for commercial and industrial building comfort, safety, and security as well as world-class technical support, development and training.

Studies have shown potential, and real, energy savings with the use of fault detection and data analysis to guide HVAC systems.

CABA was founded in 1988. As ASHB, its mission — to empower connectivity among people, spaces, and technology to deliver a more livable, sustainable, and efficient connected world — remains unchanged.

Dick Foster has been preaching the positives of zoning for years. As the owner of ZoneFirst, he has dedicated his life and career to this technology, and it has been a bit of an uphill battle.

Products are emerging that help simplify homeownership.

Contractors have numerous options for offering homeowners solutions in energy management systems.

What is the best approach to providing a holistic smart home experience for consumers?

Posted by Gordon Fyodor Lyon on May 05

Scandinavian green energy startup Aira plans to offer a 10-year service guarantee and a monthly fee that includes installation, maintenance.

While the installation of heat pumps may seem to be slowing due to inflation and rising interest rates, coupled with a confusing rollout of federal funding, they are expected to pick up speed this year.

Purdue University researchers have designed a predictive thermostat for heat pumps that has been shown to significantly reduce electricity use.

With “heat pump” and “incentives” almost being synonymous at this point, contractors need to understand the basics to ensure customers are receiving the benefits.

HVAC industry representatives are pushing back on a bid by more than two dozen public interest groups for an eventual ban on new fossil-fuel-burning heating appliances.

The latest rule will require every mobile home gas furnace — and every new residential, non-weatherized gas furnace — to have a minimum annual fuel utilization efficiency (or AFUE) of 95% starting in late 2028.

U.S. Senator Ted Cruz is leading the charge to assist HVAC contractors in pushing back on the final rule on gas furnace efficiency standards from the U.S. Department of Energy (DOE).

Using water to transfer heat energy into the home can minimize or even eliminate the issues of dry air and loud operation.

There are plenty of reasons to shut down a potentially dangerous furnace, just make sure the facts back up that decision. 

If contractors don’t have a plan in place to handle red tag furnace second opinions, they can expect some mistakes.

Posted by Ariel Otilibili on Sep 15

Posted by Ariel Otilibili on Sep 15

Posted by Ariel Otilibili on Sep 17

Posted by Ariel Otilibili on Sep 17

Posted by Dave Aitel via Dailydave on Nov 02

This Episode as well as the next one take a look at remoting infrastructures such as CORBA, .NET Remoting or Webservices. In this first part we will take a look at why remote communication is necessary in the first place, what remoting middleware can do for you as well as which other middleware technologies exist in addition to OO-RPC systems, such as messaging middleware. Finally, we conclude with a brief overview of what the broker pattern can do for us in the context of remoting middleware.

In this Episode we talk to Ted Neward. Since Ted is active in the .NET and Java universes, we started out by discussing some of the differences between the two platforms. The main discussion, however, focussed on new features in the C# 3.0 language. These include LINQ (language-integrated query). A very interesting discussion about extension methods, lamda expression, typing (dynamic, duck, compiler) and other language "tricks" follows. We also visited the topic of language development on the .NET and Java platforms in general, also looking at topics such as concurrency and the Scala language.

This is a short episode that outlines the upcoming episodes and interviews, as well as reports on some listener feedback.

This is an episode with some more of your feedback. Specifically, the episode also contains a 5 minute section from Geert Bevin where he explains how Continuations are used an implemented in the Rife Framework. This is in response to a discussion about continuations and Rife in Episode 15, Future of Enterprise Java. We also have some feedback from Bill Pugh about flaws in our description about the problems of double-checked locking in Java.

SOA (Service Oriented Architecture) appears to be just another hype - after all we have been building distributed systems for quite a while now. But the real value of SOA is non-technical. In this episode Eberhard and Markus discuss the advantages and disadvantages, what SOA actually is and how it compares to other approaches that have been tried out before.

In this, as well as in the next episode Eberhard and Markus continue their discussion about SOA (the episode got too long, so we had to split it into two ... SOA 2a and SOA 2b). In this episode, we talk about the various perspectives on SOA (CBD, EAI, BPM), about fundamental requirements towards an SOA, and we discuss the role of models in defining sustainable architectures. We also discuss how a programming model based on the described approach typically looks like. We then discuss a number of issues any large-scale SOA faces (and for which the SOA paradigm does not really provide an out-of-the-box solution: In this episode we discuss data type ownership and (weak) typing of data types.

This is the second snippet of the SOA 2 double-episode. Eberhard and Markus continue the discussion with the issue of service reuse and a couple of development process issues. We also look at the duality between infrastructure development and application development in the context of an SOA. We then discuss the great spaghetti misunderstanding :-). We conclude this episode with a look at how to integrate BPM into the conceptual SOA framework we've built up to now, and we'll also briefly skim over a number of technologies related to SOA. Note that this episode, as well as the last one, is based on a set of slides; these can be downloaded from here. This episode covers slides 39 through 74.

In this Episode we talked about the new POSA 4 book which has recently been published. We talk to two of the authors, Kevlin Henney and Frank Buschmann (the third author, Doug Schmidt was not available - and he had also been on the podcast a couple of times :-)). The book contains a pattern language for distributed systems. It contains 114 patterns that had been published before by many different other authors. The patterns have been rewritten to form a consistent language. We basically talked through the different sections of the book, which gives a really good overview over the challenges and the solutions of building distributed systems. These sections include From Mud to Structure, Distribution Infrastructure, Event Demultiplexing and Dispatching, Interface Partitioning, Component Patitioning, Application Contrl, Concurrency, Synchronization, Object Interaction, Adaptazion and Extension, Modal Behaviour, Resource Management and finally, Database Access. The book references several other previous works (as listed below). Interestingly, many of these referenced works and authors have also been discussed previously on the podcast. Here are the back references:

• Domain Driven Design, Eric Evans
• Messaging Patterns, Gregor Hohpe
• POSA 2 Patterns, Doug Schmidt
• Concurrency: Part 1, Part 2, Part 3 and the interview with Goetz and Holmes
• Remoting Patterns Part 1 and Part 2
• POSA3, Resource Management

This episode is an introduction to embedded system. It is an introduction in the sense that we cover many topics very briefly: upcoming episodes will provides details for many of these topics. We start by discussing what an embedded system is an what the important characteristics are. Among them is limited resources, concurrency, real time and hardware integration. We also discuss the range of embedded systems from small mirocontrollers to mobile phones to distributed real time embedded systems. We also cover the different business case for embedded systems (per unit cost) and some non-trivial developmental aspects (cross compilation debugging, heisenbugs). We close the episode by discussing some important architectural styles (time triggered, event-based, microkernels, state machines) as well as tools of the trade: languages, operating systems and middleware.

In this episode, Markus talks to Rebecca Wirfs-Brock on what she has learned from architecture reviews. This is a very complement to the earlier episode on architecture evaluation.

Sven Apel explains why developing software in a feature-oriented manner is so vital for us as software engineers and why objects are simply not enough.