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Haier calling
Carel says the calculation speed of the pCO5+ HS means it can respond more quickly and precisely to variations in the main unit input values in terms of temperature, pressure, and humidity.
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Haier has released a new high-wall split-system air conditioner called Dawn.
The pCO5+ HS comes with two built-in serial interfaces, two expansion slots and two USB ports. The controller also features a wide range of optional cards for managing the communication protocols typically used in HVAC&R. Communication with Carel apps can also be implemented using 1tool.
The new unit has been tested in Australia to ensure it can cope across the country’s diverse climate. “From the searing heat of the desert, to the humidity of the tropics, to the chill of Tasmania, Dawn will help you create an environment you’ll love to be in,” says the company. Wi-fi connectivity is a standard feature. Dawn also offers voice control using Google Home, and can be activated remotely. Haier notes that the new system offers benefits for indoor air quality, too.
The pCO5+ HS is available with two built-in electronic expansion valve drivers and an optional Ultracap module. This is designed for integrated energy saving management. Go to www.carel.com/carel-australia ■
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“Haier’s revolutionary patented self-clean technology freezes the indoor heat exchanger, trapping pollen and dust,” says the company. “It then defrosts, washing away the trapped contaminants and leaving your air conditioner to deliver clean, healthy air.”
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Dwyer Instruments has recently released its series IEF Insertion Electromagnetic Flow Transmitter featuring electromagnetic technology.
Finally, Dawn is equipped with a smart movement and light sensor designed to sense motion over a large area and precisely locate any humans in the room. If no one is detected, the unit goes into sleep mode to conserve energy.
Dwyer says the transmitter accurately and reliably measures fluid velocity in addition to providing several continuous signal outputs.
Go to haier.com.au ■
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“This series is specifically designed to offer superior performance paired with simple installation and use,” Dwyer says. “One unit is adjustable to fit pipe sizes from 4 to 36" – 101.6 to 914.4 mm – and offers several output options including selectable BACnet MS/TP or Modbus RTU communications protocol over 2-wire RS-485 in addition to the standard analogue, frequency and alarm outputs.
All the way with AWA
Armaturenwerk Altenburg (AWA), a European manufacturer of valves, sight glasses and fittings for refrigeration and air conditioning technology, has released a new oil‑level‑regulation system called OLC.
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“High-performance accuracy is maintained through temperature, density or viscosity.”
“The AWA OLC guarantees the optimum oil level in refrigeration compressors, and is used in compound systems with reciprocating or scroll compressors,” says the company. “Its functionality is essentially based on the almost infinitely variable level measurement by means of an electronic float sensor. It can be used in systems of up to 120 bar for a variety of refrigerants and oils, and ensures permanent and instantaneous level detection. In addition to the level, the speed of change of the level is also evaluated for the first time.”
Dwyer says field-configurable, integral or remote set-up displays allow for flexibility by accommodating a variety of application configurations with one model through multiple display configurations such as pipe size and material through to calibration factor.
According to AWA, the electronic float is insensitive to foaming and swashing oil. Other features include a large sight glass for better level recognition, an LED display on the front for fast status recording, and a modular adapter system for connection to all common compressor types. And the installation dimensions have been reduced by up to 25 per cent.
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Steel reinforcement channels have been added to give extra support to the box during concrete pour. And the Fyreboxes are now powder coated for extra durability.
In control with Carel
“Fyrebox Cast-In … provides a single, compact, pre‑formed fire-rated opening in floors that trades can run any number of mixed services through,” the firm says. “This is especially important for the HVAC&R industry, as it is common to have a large volume of services needing to be routed through a small footprint.
Carel has released its pCO5+ HS (high-speed) programmable controller, designed to improve the efficiency of HVAC&R kit such as chillers, process chillers, and equipment in data centres. “The new pCO5+ HS guarantees improved performance both in terms of application times – start-up and cycle – and upgrade speed,” Carel says. “This improved controller performance translates into faster unit set-up. When commissioning in the field, system management is also much faster. “Native integration of the USB port further simplifies maintenance: the data logger files saved on the controller can be simply and quickly copied to a USB flash drive or PC, for detailed analysis.” |
HVAC&R Nation
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www.airah.org.au/nation
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Fyrebox in effect
Since the Fyrebox Cast-In earned the AIRAH Product of the Year in 2018, it has had a number of changes.
Go to www.awa-armaturenwerk.de ■
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“A set-up wizard and installation tool are simple to use, allowing for quick and precise installation,” Dwyer says. “The IEF has long life-cycle and minimal maintenance requirements, with no moving parts to wear or break, and electrodes that discourage fouling.” Go to www.dwyer-inst.com.au ■
The AWA OLC also incorporates special autonomous electronics functions to protect compressors.
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Go with the flow
February 2020
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“By casting directly into the floor slab, Fyrebox Cast-In eliminates the need for core-drilling of holes or forming of openings, which saves HVAC&R trades time and money,” the company says. “Furthermore, common compliance issues associated with proximity of services and structural integrity factors are eliminated, protecting HVAC&R trades from costly rectification works and reputational damage.
