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Author: Rm Harrington

About Rm Harrington Professional HVAC content writer, equally skilled for communicating with A/C technicians, HVAC product engineers or the home/business buyer in need of reliable A/C related details. Most valuable skill: The ability to research, comprehend, evaluate and discuss matters of importance to homeowners and the HVAC community, including technical details, system comparisons and best-choice system applications.

Arizona HVAC Contractor Updates Website To Include Liebert Precision Cooling CRAC Resource Portal

Written by Rm Harrington on . Posted in Liebert Precision Cooling Systems, Press Release.

CRAC Resource PortalCRAC Resource Portal – Designed For Data Center Managers

“Doing Liebert precision cooling CRAC at prices you can afford”

 

For Arizona business owners, the process of maintaining reliable computer room temperatures at affordable pricing just got easier. Thanks to a creative web team, skilled technical writers, and motivated HVAC technicians, American Cooling and Heating is proud to introduce a new web-based Liebert Precision Cooling CRAC resource portal. Designed for data center managers, the ACH precision cooling portal offers detailed Liebert product reviews, associated spec sheets, and personalized services from a top-quality Arizona HVAC contractor.

By pin focusing on Internet-based Liebert CRAC solutions, American Cooling and Heating aims to help simply the process of identifying and resolving problems associated with computer room cooling, data center upsizing, and cost-efficient Liebert Precision CRAC services and maintenance. Unlike startup HVAC contractors, ACH has:

  • An established website that dates back to 1993
  • Utilizes a professional web development team
  • Optimizes the writing skills of authors proficient in heating and cooling terms and technology
  • Offers 24/7 customer support that includes on-site service of Liebert precision cooling CRAC systems as well as the ever-present resources of the ACH Liebert resource portal
  • AND a new CRAC resource portal just for data center managers.

Data Centers and Precision Cooling – The Heartbeat of America

Google recently opened a web-based visual portal into the working within the search giants data centers. Some of the warehouses are so large that the engineers use bicycles for internal transportation. Hundreds of thousands of servers perform daily information exchange operations. Storm troopers stand guard over the facilities, and only a small set of Google employees have access to the physical server floor.

Such data centers represent the nerve center of business data management. Liebert precision cooling systems are often at the core of such centers. With CRAC products that maintain reliable computer room temperatures at affordable prices, Liebert systems enable businesses to reap cooling room dependability in long-term cooling solutions. The American Cooling and Heating “Liebert Precision Cooling CRAC Resource Portal” helps data center managers map out the right combination of equipment and options best suited to fit precise data center sizes and requirements. As experienced Arizona HVAC contractors, the American Cooling and Heating technicians provide post installation service support, CRAC installation, and cost-efficient options for long-term maintenance as well as rapid response to emergency CRAC repair needs.

About American Cooling and Heating

American Cooling and Heating provides full-service installation, repairs and support for Liebert CRAC precision cooling equipment throughout Chandler AZ, Gilbert AZ, Glendale AZ, Mesa AZ, Peoria AZ, Scottsdale AZ, Tempe AZ, And All Other Phoenix Areas. As licensed, bonded and insured Arizona HVAC contractors, ACH also handles sales, installation and services for residential heating and cooling, commercial HVAC products, and industrial systems. The ACH CRAC resource portal is open now.

 

Data Center Management – Upgrading, Modifying or Servicing Your Liebert CRAC

Written by Rm Harrington on . Posted in Air Conditioning Technology, Commercial HVAC, Liebert Precision Cooling Systems.

Liebert DS Configuration - UpFlowWhen Data Center Management and Computer Room Air Conditioning (CRAC) Meets Old Man Time

How do you handle Data Center Management when construction demands that you turn off the cooling without melting the servers?

Updating a Liebert CRAC system can be complicated, and the larger the system, the more complex becomes the operation. Shutting down big computer room air conditioning environments demands forethought, long-range planning, and access to a host of well trained HVAC and electrical service professionals.

For example: Greening Columbia University recently upgraded the core chilled water cooling system and electrical power supply line for the University’s existing data center. The project required a full mechanical shutdown of the cooling plant. Existing unused cooling pipe had to be demolished. New and upgraded electrical components had to be installed. Various additional construction processes affected the overall activity. And they were working with the wear and tear that so often affects conditions in a 50-year old facility. Thus along with the upgrades and component replacements, the University took opportunity to press the CRAC service team for extensive preventative maintenance.

Data Center Management – When Reducing the CRAC Becomes Unavoidable

The functionality of your data center is mission critical to daily and yearly business or organizational operations. In the above scenario, Greening Columbia University was dealing with a computer room air conditioning system that typically demanded a 120-ton operating load. Shutting down non-critical services for even one day still left them facing a need to cool nearly 700 servers, merely two-thirds of the center’s normal capacity. Thus for completion of the work, a temporary 50-ton cooling system had to be employed.

This is what mission critical data center management is all about. When reducing the CRAC becomes unavoidable, you need reliable HVAC technicians who have been trained and who continue to train in all aspects of mission-critical precision cooling product installation, services and management. American Cooling and Heating provides full-service commercial HVAC installation, repairs and support for Liebert CRAC precision cooling equipment throughout Chandler AZ, Gilbert AZ, Glendale AZ, Mesa AZ, Peoria AZ, Scottsdale AZ, Tempe AZ, And All Other Phoenix Areas.

Liebert CRAC, World Renowned Manufacturer of Mission-Critical Precision Cooling Products

Whether upgrading, modifying or servicing your precision cooling system, you need products that maintain consistent computer room temperatures at pricing that forbids the torching of your budget. Liebert produces custom designed equipment precision-crafted for temperature management with advanced UPS surge protection. No matter how demanding your data center cooling conditions, Liebert computer room air conditioning (CRAC) units offer a one-source solution.

When you coupled the efficiency of Liebert CRAC products to the experience of Arizona-based service technicians from American Cooling and Heating, you reap:

  • System dependability
  • Better energy-conservation performance
  • Precision data center sizing with integrated options for growth and expansion
  • Post installation service and support
  • Simplified data center management
  • AND the ACH guaranteed of rapid response to all of your maintenance, service, and repair needs.

 

For a quick review of Liebert precision cooling products, their function, and their availability, review “Arizona Resource For Liebert Precision Cooling CRAC Products” at the American Cooling and Heating Liebert Services page.

Or

Get instant up-to-the-minute answers by calling one of the following ACH sales and technical assistance numbers.

Data Center Management - Cooling by Liebert CRAC Products

 

 

Carrier Commercial Rooftop HVAC Unit Controller

Written by Rm Harrington on . Posted in Carrier Air Conditioning Arizona, Commercial Controllers, Commercial HVAC.

Carrier commercial rooftop RTU-MPRTU-MP™ Carrier Commercial Rooftop Unit Controller

RTU-MP Inputs!
· Indoor and outdoor CO2 relative humidity controls
· Integrated fire shutdown protection and compressor safety management
· Humidistat
· Temperature readings for space and supply air temperatures
· Status display on fan and filter
· AND more.

Every Carrier commercial product configures to one or more specific heating and cooling functions. Thus the RTU-MP™ Carrier Commercial Rooftop Unit Controller provides industry with low cost access to intelligent rooftop HVAC monitoring and regulation – while also making use of four distinctive communication protocols. This dipswitch configurable rooftop HVAC unit controller offers the kind of flexibility that attracts building owners as well as professional commercial HVAC control contractors and quality commercial HVAC installation contractors. The RTU-MP™ may indeed be one of the best available systems for enabling quick adjustment to building automation management – without requiring an installed or re-configured unit mounted rooftop system.

Designed for continuous precision management, the RTU-MP ensures reliable system performance, maximum occupant comfort, and factory programmed system-communication that endures the test of time and usage. Primary benefits associated with the RTU-MP™ Carrier Commercial Rooftop Unit Controller include:

Consumer benefits associated with the RTU-MP Carrier commercial rooftop controller include:

  • Carrier configured and crafted for installation at the factory
  • Integrated support for primary protocols, include support for BACnet MS/TP, Modbus (RTU), N2. Also supports LonWorks (Field installed LON-OC required)
  • Functional as a stand-alone space temperature/humidity sensor driven control system or as an integrated communication link to the BAS (Building Automation System)
  • Integrated support for local software upgrade downloads
  • Pre-configured and enabled to support the handheld Carrier service tool
  • DIP-switch enabled for rapid on-board modification of baud rate and protocol settings
  • Integrated circuitry surge protection
  • AND More.

American Cooling and Heating For Professional Installation of Carrier Commercial Building Products

RTU-MP Outputs!
· Economizer and power exhaust management controls
· Cooling and heating stages
· Fan management — indoor
· De-humidification management
· AND more.

 

The full line of Carrier Commercial products includes Air Handlers, Split-Systems, Water-Cooled Chillers, Carrier Commercial Rooftop Units and more. The

technicians at ACH have the skill, the training, and the practical experience to ensure rapid response and solutions for all of your heating and cooling requirements – be your need related to rooftop HVAC services, emergency repair, or installation of any other Carrier commercial services or products.

 

Cold Plasma, Clean Air, And Energy-Zapping Bacteria With Oxygen Atoms

Written by Rm Harrington on . Posted in Air Cleaners, Air Purification, News.

Squair Cold Plasma TechnologyCold Plasma, The Next Step In Home Pollution Control

Cold Plasma in the news: Let’s have clean air by putting the power of cold plasma into handheld technology.

It’s coming from Germany where a team of inventors is working to enable in home pollution control via advanced non-thermal plasma (NTP) know-how. The device, tagged the Squair, is designed to safely split oxygen molecules into clean air bacteria collection agents. If promises are fulfilled as stated by the inventors, the Squair portable air cleaner will activate the natural atmosphere within your home so that portable pollution control becomes more effective than ever before.

Current air cleaners zap pollutants with negatively charged ions. But the Squair process ups the ante. According to the inventors, the Squair cold plasma device can provide every homeowner with portable access to a double-dose pollution control particulate zapper. By making use of both negative and positively charged particles, the new process gives homeowners two cleaners for the cost of one cleaner. Just call it a portable, dual-efficiency clean air booster system.

TIP! Clean your permanent air filters or replace disposable ones every single month. If you have the choice, an electrostatic is the best option on the market today. For professional HVAC maintenance call now.

In typical plasma production, energy blasted into gas results in split molecules of both positively charged electrons and negatively charged electrons. Furthermore, the end result is not termed “safe for human touching.” According to the Urban Clinic, plasma air cleaning devices are designed to replicate the negative ions found in nature and in indoor settings. In theory, these ionizing devices emit particles that cling to bacteria, mold, viruses and even things that just smell bad. Plasma technology produces hydroxyls that attack airborne pollutants.

A recent release from the Journal of Medical Microbiology projects that cold plasma jets may be a safe and effective alternative to antibiotic treatment of multi-drug resistant infections. Defined as the fourth state of matter after solids, liquids and gases, plasmas are the result of high-energy stripping of atoms from their electrons. It’s a high temperature process wherein hot plasmas are used to disinfect surgical instruments. Furthermore, plasma pollution control results in an increase in home ozone levels.

However, the Squair cold plasma approach produces molecules that are near to room temperature and safe for use within the living room, bedroom or anywhere else within your home. With cold plasma technology, you get a safe air cleaner that uses fewer ionized molecules (thus less ozone) while also reaping greater effectiveness as a personal pollution management device.

TIP! Before having someone install, maintain or repair HVAC components, make sure they are insured. Having someone who is insured work on your system will assure that if anything happens while they are working at your home, they are financially covered and you will not be responsible.

 

According to Squair, this clean air device is a win-win solution. The inventors define the technology as effective in fighting bacteria, germs, fungi, mold, and viruses. Each portable device is crafted to handle 322 square feet. Florian Windeler, company CEO, defines it as a plug-n-go air cleaner solution that will work in homes, offices and even cars. With cold plasma, there is nothing to wash, no filters to clean, and an immediate benefit as “hungry oxygen atoms” rip the bad out of the air you breathe.

Is it really effective? Time will tell.

 

 

Liebert DS Cooling Configurations

Written by Rm Harrington on . Posted in Arizona Commercial Air Conditioning HVAC, Liebert Precision Cooling Systems.

Liebert DS Configuration - UpFlowLiebert DS Cooling Pre-Installation Guidelines

Liebert precision cooling systems are crafted to ensure reliable energy-efficient data center temperature management and more. Yet gaining the benefits of cost-effective data room management demands operative post-installation services. Crafted to contend in all areas of data center efficiency, the Liebert precision line of cooling products includes:

  • Reliable temperature control
  • Efficient cooling racks
  • User-oriented management software
  • Quality surge suppression
  • AND Top-line CRAC cooling units.

Designed to meet and exceed “exact” control room parameters, the Liebert DS cooling system uses advanced dual circuitry that ensures proficient management of airflow, humidity and temperature. It’s a flexible key that assures superior data center performance. When supplemented by the Liebert iCOM control system, the Liebert DS cooling system provides a robust modular-frame solution for data centers and CRAC environments.

But performance is typically defined by the quality of the foundation. When sitting up Liebert DS Cooling configurations, the following Liebert pre-installation guidelines are standard:

  • Proper room preparation
  • Air distribution in downflow units and plenum ducting
  • Air distribution in upflow units
  • Routing for wiring, piping and ductwork as well as other connections and system setup processes
  • Operating conditions
  • The recommended ASHRAE operations envelope defined as defined for data centers in matters concerning cooling, dehumidification and humidification
  • Maximum heating-only temperatures as limited by the qualifications of the Liebert DS.

If the preceding guidelines pop your head full of more questions than answerers, you have come to the right place. Effective CRAC services begin with efficient installation and carry through to reliable system maintenance and services. Rightly configuring your Liebert DS cooling system for optimal performance requires skill, training, and on-the-job know-how. As a world renown leader in manufacture and installation of mission-critical Liebert precision cooling systems and CRAC products, Arizona based American Cooling and Heating can help you get your system up and running quickly and efficiency.

Time Out For Q&A!

For what purpose serves a time delay on an AC unit?

Answer:

When running a single-phase scroll compressor, you may encounter concerns about a pressure-equalization time delay. During off-cycle pressure equalization, scroll compressors spin backwards. Short cycling and energizing a scroll during this time period can cause the unit to continue spinning backwards. Once initiated, this reverse spin will continue until manual ended or the unit trips on internal overloads. Thus may end the life your scroll compressor.

More often than not, a time delay will be linked to anti-short cycling. Short cycling during compressor rush can cause the system to continuously trip a low-pressure safety switch, which in turn can damage the unit. By taking advance of features in a pump down solenoid, some systems isolate refrigerant during off cycling. If the compressor is controlled solely off the LP safety, a faulty LL solenoid can cause pressure to rise in the evaporator during an off cycle. This problem can be present in the recip compressor of an older Liebert Deluxe system.

5 Field Options for Liebert DS Cooling Configurations

1) AIR-COOLED – Liebert DS Cooling Configuration

This process requires piping of field-supplied refrigerant to the condenser. The unit contains a nitrogen holding charge and factory-issued piping is spun closed.

2) GLYCOL-COOLED – Liebert DS Cooling Configuration

Factory charged and confirmed reliable, Glycol-cooled Liebert DS units require field supplied and installed piping from the pump package to the drycooler.

3) GLYCOOL-INTEGRATED FLUID ECONOMIZER – Liebert DS Cooling Configuration

As with the base Glycol-cooled unit, Glycool systems ship factory charged and tested. Piping from the pump package to the drycooler is field supplied and field installed. To complete the installation, cold glycol is circulated through a secondary Liebert Economizer coil that is designed to reduce compressor load when fluid temperatures drop below room temperature.

4) WATER-COOLED – Liebert DS Cooling Configuration

As with the other units, a water-cooled Liebert DS system ships factory charged and factory tested. The piping that runs from the cooling tower to the unit is field supplied and field installed.

5) DUAL-COOL – Liebert DS Cooling Configuration

The dual-cool Liebert DS also incorporates a secondary cooling coil. This unit utilizes access to an external source for chilled water. Cooling is supplemented and improved by circulating chilled water through the secondary coil system.

ACH, Arizona Liebert Precision Cooling Systems

American Cooling and Heating provides full-service installation, repairs and support for Liebert CRAC precision cooling equipment throughout Chandler AZ, Gilbert AZ, Glendale AZ, Mesa AZ, Peoria AZ, Scottsdale AZ, Tempe AZ, And All Other Phoenix Areas.

Please call and direct your questions to our 24-hour service center.

 

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