In 2015, the doors open on a brand new 8,100m² state of the art Exhibition Centre. The centre becomes the latest addition to ACC Liverpool and makes the only purpose-built interconnected Arena, Convention Centre and Exhibition Centre in Europe.Twelve new packaged rooftop air handling and refrigeration units with integrated controls were required for the project - but it was essential that production and installation costs were kept minimal.With this in mind, we carried out all assembly work and subsequent air handling unit testing at our factory. Only final commissioning of the controls and refrigeration equipment was carried out on site. The air handling units were also treated to protect against corrosion.Aside from the cost savings gained from carrying out much of the work off site; by installing air handling systems with integrated controls, the units now offer improved and efficient performance with increased reliability and control. AstraZeneca is the UK’s second-largest pharmaceutical company.

At Macclesfield, AstraZeneca has opened a Pharmaceutical Development laboratory building to support the development of new medicines.AstraZeneca required a cooling solution adept at dealing with their critical laboratory environment; air conditioning unit automotivewhere precise temperature, humidity and air quality control is required.air conditioning split systems pricesWe delivered a high precision air handling unit with integrated controls. air conditioning units in wallThe air handling system was configured to suit their operational needs where performance, reliability and precision are essential; ensuring that equipment remained in optimum working condition and that research and development was not compromised. The development of the New Southern General Hospital complex in Glasgow is Scotland’s biggest ever hospital building project and one of the largest in Europe.

Due to open in 2015 the entire complex will treat around 725,000 patients a year.During 2012, we supplied and fitted air handling units with integrated controls, across the entire site.All air handling unit controls equipment including power distribution, speed control devices, BMS outstation and controls sensors were factory fitted prior to delivery to site saving significantly on site installation time. Full controls installation and wiring for over 200 AHUs was seamlessly meshed in with our standard production procedures.Case Study: Fanwall Technology for Rapid Air Handling Unit Replacement at Moses H. Cone Memorial Hospital ↑ Back to top AHU Condensate Collection Economics: A Study of 47 U.S. Cities ©2012 This excerpt taken from the article of the same name which appeared in ASHRAE Journal, vol. 54, no. 5, May 2012. By Thomas Lawrence, Ph.D., P.E., Member ASHRAE; Jason Perry, Associate Member ASHRAE; Tyler Alsen, Student Member ASHRAE Thomas Lawrence, Ph.D., P.E., is senior public service associate in the Faculty of Engineering, Jason Perry is research engineer at the Engineering Outreach Service, and Tyler Alsen is a graduate student, at the University of Georgia in Athens, Ga.

Using recycled or reclaimed water systems is a regular part of the urban infrastructure in some regions of the world. In areas that are normally thought of as "humid" or at least not as water-stressed, recent concerns about water availability due to population growth or shifting climate are opening up a much larger market for water reclaim and reuse in the built environment. To avoid confusion, the term "condensate collection" in this article refers strictly to the capture and reuse of cooling coil condensate from air-conditioning systems, and does not include the very different process of collecting condensate in steam systems for reuse. This water source is being increasingly recognized as a valuable resource, particularly in warm-humid or hot-humid climate zones. The overall intent here is to apply recent techniques in evaluating condensate collection potential and reuse to see if easy to apply generalizations can be made regarding where condensate collection would be recommended or perhaps even mandated.

The use of reclaimed water sources such as condensate collection is one strategy for reducing overall potable water consumption. ASHRAE and the International Code Council (ICC) have programs developed for green building construction. ASHRAE released its Standard 189.1-2009 in January 2010, while the ICC has just published its International Green Construction Code, or IgCC. Both Standard 189.1 and the IgCC require the use of condensate collection and reuse for new construction and major renovation projects. However, limited guidance is found in the literature concerning where and when mandating condensate collection would be recommended. In some climates, the amount of condensate expected is practically zero, so requiring a condensate collection system would not be as practical or recommended. The primary motivation for this study was to develop and present a method for predicting the amount of condensate and making recommendations on when condensate collection should be considered mandatory.

Several attempts to estimate condensate have been previously published. A typical hourly condensate production rate was reported by Guz for buildings in San Antonio, Texas, of between 0.1 and 0.3 gallons of water per ton of cooling (0.11 and 0.32 L per kW of cooling), or approximately 0.5 gallons/hour per 1,000 ft2 of conditioned floor space (2.0 L/hour per 100 m² of conditioned floor space). At these rates of collection, condensate recovery systems were determined to be financially viable for buildings in excess of 100,000 ft2 (9300 m²). While this provides a useful guideline for areas with a climate similar to San Antonio, it is not readily applicable to other areas and climates. Bryant and Ahmed reported in 2008 a simplified model based on empirical data from a case study in Qatar, predicting condensate generation for a "normal" commercial air-conditioning system to be 8 gallons of condensate per ton of cooling (8.6 L per kW of cooling) for each day with a dew-point temperature in excess of 60°F (15.5°C).

Painter reported a methodology to predict condensate production from dedicated outdoor air-handling units with energy recovery systems for buildings in Dallas, Houston and San Antonio, Texas, comparing the difference in humidity ratio across the system cooling coils. Lawrence, et al., developed a method for evaluating the amount of condensate collected from a typical air-handling unit based on the amount of incoming outdoor air and its temperature and relative humidity. This method predicts the collected condensate using hourly weather data for when mechanical cooling would be expected, and accounts for the potential of using economizer cooling when that would make sense. The method was validated using data collected from a field study during the cooling season of 2009. The method predicts the volume of condensate annually collected from a unit volume flow of incoming outdoor air. Application of this method to the varied climatic conditions of the U.S. was described in Lawrence and Perry.

This study approached the topic of condensate collection with three specific purposes. The first was to develop a method to characterize the total annual amount of condensate collected using correlations with local weather data parameters. Next, was to evaluate the economics associated with a typical condensate collection system. Finally, these results would be analyzed for generalizations regarding regions where condensate collection would be recommended from an economic and/or environmental impact perspective. Selection of Cities and Weather Data Parameters A set of 47 cities in the United States was selected for this study, with these shown on the map in Figure 1. Although this study only looked at cities in the U.S., developing correlations between the amount of condensate and weather data parameters allows the results and conclusions to be applicable anywhere. The first step toward this goal is to check if correlations can be derived for the amount of condensate collected with respect to readily available weather data parameters.