voltage levels | ACHR News

Items Tagged with 'voltage levels'

ARTICLES

Defining and Calculating Voltage Imbalance

Improper voltage is the one of the greatest causes of failed compressors in three-phase units

Paul Flora

June 28, 2023

No Comments

Saving one compressor will cover the cost of a voltage monitor and then some.

Troubleshooting Potential Relays

A malfunctioning relay can damage the compressor, so techs must understand the warning signs

John Tomczyk

February 15, 2023

No Comments

If a potential relay is malfunctioning, the compressor motor is in danger of not starting, stalling, locking rotor, or even burning out. That is why technicians should understand how to troubleshoot potential relays.

How to Properly Diagnose Low-Voltage Short Circuits in the Field

Strong economy, housing market expected to fuel HVAC sales growth

Bryan Orr

March 19, 2018

No Comments

I see techs in the field get the most frustrated when they have a low-voltage short they can’t seem to locate. The challenge techs face with low voltage diagnosis is a combination of poor process and some root misunderstanding about what they are looking for.

Electro Static Technology: Voltage Instrument

February 15, 2016

No Comments

It is designed and configured to take and capture highly accurate voltage measurements from the spinning shafts of motors. It comes with a conductive microfiber tipped probe for shaft contact, a probe holder with magnetic base, and a compact carrying case.

DOE Seeks Graduate Students to Research Building to Grid Integration

Deadline for applying is Nov. 15, 2015, at 11:59 p.m. EST

November 12, 2015

No Comments

The U.S. Department of Energy’s (DOE’s) Building Technologies Office is seeking graduate students interested in exploring energy systems of buildings and how building assets or functions can integrate and transact with the energy grid supplying the building’s energy. The deadline for applying is Nov. 15, at 11:59 p.m. EST.

State of Washington to Develop Smart Buildings, Campuses Demo

Will test transaction-based energy management

November 11, 2015

No Comments

The U.S. Department of Energy (DOE) is matching a $2.25 million Clean Energy Fund grant from the Washington Department of Commerce to research, develop, and demonstrate the technologies needed to create smart buildings, campuses, and cities to better manage energy usage.

Klein Tools Inc.: Voltage Tester

June 22, 2015

No Comments

The NCVT-3 Non-Contact Voltage Tester with Flashlight identifies ac voltage in cables, cords, circuit breakers, outlets, wires, doorbells, thermostats, low-voltage lighting systems, irrigation systems, and more.

Two common configurations in three-phase motor windings.

The Professor: Three-Phase Motor Voltage Unbalance

Troubleshooting an Overheating Compressor

John Tomczyk

May 6, 2013

One Comment

Compressor overheating is usually caused from high compression ratios. High compression ratios can be caused from a combination of high condensing pressures (temperatures) and low suction (evaporating) pressures.

Ice Breaker: Troubleshooting Controller Inputs

Joe Marchese

November 12, 2012

No Comments

Today more and more systems are incorporating microprocessor controllers into their design. Troubleshooting the operation of these controllers can be a little tricky at times, but if broken down into sections it can be easier to handle.

During this webinar, we will discuss what acidic condensate is, how it’s formed, and the damage it can cause if not properly treated—while hitting on the latest regulations that are driving the adoption of condensing technology.

On Demand Use the power of AI to your advantage to book more jobs and gain more operational efficiencies during busy season this year! See how an AI Employee can help you save time by qualifying every lead for you, automatically responding to incoming leads, and working overtime so you don’t have to.

Items Tagged with 'voltage levels'

ARTICLES

Defining and Calculating Voltage Imbalance

Troubleshooting Potential Relays

How to Properly Diagnose Low-Voltage Short Circuits in the Field

Electro Static Technology: Voltage Instrument

DOE Seeks Graduate Students to Research Building to Grid Integration

State of Washington to Develop Smart Buildings, Campuses Demo

Klein Tools Inc.: Voltage Tester

The Professor: Three-Phase Motor Voltage Unbalance

Ice Breaker: Troubleshooting Controller Inputs

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