Technical / Extra Edition

Contractor Reduces Setup Time With Electronic Controller

October 10, 2011
/ Print / Reprints /
ShareMore
/ Text Size+
Trans

Setting up a refrigeration condensing unit for a walk-in cooler can present a challenge in foodservice applications.

Technicians can spend 25 minutes or more to properly adjust a mechanical low pressure control on a refrigeration condensing unit. These coarse adjustments tend to drift over time, requiring return service calls.

Mechanical low pressure controls (Figure 1) require:

• Hooking up a gauge set;

• Reading system pressure;

• Adjusting the mechanical pressure control with a wrench or screwdriver;

• Allowing system pressure to settle;

• Reading the system pressure again;

• Making any needed final adjustment(s) to the mechanical pressure control; and

• Removing the gauge set.

Contractors asked for a control they could set up more quickly that would not drift.

Solution

The Electronic Unit Controller (Figure 2) from Emerson Climate Technologies is now standard on many refrigeration condensing units. The controller reduces setup time and is designed to remain accurate over the life of the product. In addition, contractors can utilize the built-in diagnostics to more quickly troubleshoot any field issues.

“The Electronic Unit Controller from Emerson was easy to install and set. Our technician was very impressed by the accuracy of the pressure readings compared to his service gauges,” said Dan Whitten, Rosetown Central Refrigeration & Air Conditioning Ltd., Brampton, Ontario.

Emerson noted that overall benefits of the controller are:

• Setup time reduced from 25 minutes to one minute.

• Setpoint accuracy of 1.5 percent over the life of the product.

• Multi-refrigerant approval in one condensing unit.

• Built-in troubleshooting diagnostics.

• Added system safeguards.

• No cap tubes to break.

For more information on the Electronic Unit Controller, visit emersonclimate.com/electronicunitcontroller.

Publication date: 10/10/2011

Did you enjoy this article? Click here to subscribe to The NEWS Magazine

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

2014 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.

Podcasts

NEWSMakers: Ed Purvis

Emerson Climate Technologies executive president and business leader Ed Purvis discusses HVACR industry trends, the strength of the industry, and Emerson’s new innovation center. Posted on Dec. 26.

More Podcasts

ACHRNEWS

NEWS 12-22-14 cover

2014 December 22

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

HVAC TECHNICIAN SHORTAGE

In order to bring more people into the trade and produce more technicians, what should the industry do?
View Results Poll Archive

HVACR INDUSTRY STORE

2015.jpg
2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research

 

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

DON'T MISS A THING

Magazine image
 
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.

STAY CONNECTED

facebook icontwitter iconyoutube iconLinkedIn i con