FEATURE REPORT
PRODUCT NEWS
Dunham-Bush
Fieldpiece
Fieldpiece Instruments has two new wireless power clamp meters, SC480 and SC680, that work with the Fieldpiece Job Link System App.
These clamp meters use the Job Link
System and off er advanced solutions for HVACR electrical tests that can be customised. With the electrical measurements documented, technicians can recommend cost saving actions to the customer, making the job easier and faster. These new meters are perfect for getting electrical measurements on mini-splits. The included Molex tips are super thin to get readings on hard to reach circuitry. A low pass fi lter provides more reliable voltage readings on variable frequency drives (VFDs). Plus, the SC680 also measures DC amps for inverter systems.
A new range of ultra-low energy commercial extract fans, which combine rugged construction with proven long- life reliability, is now available from Dunham-Bush.
All fans in the range are ERP compliant as required by the Non-
Domestic Building Services Directive 2013 and are manufactured from high quality galvanized sheet steel fi tted with acoustic non-hygroscopic foam and non-overloading ‘100,000’ hour long life, ultra-low energy EC fans.
Designed for applications requiring continuity of supply, such as public buildings, the eTF series of ducted twin inline extract fans off er duty shared up to 900 l/s and come as standard with a combined auto- changeover and speed controller with fault output (ECO-TF). For roof top applications the eRTF series of fans off er duty shared up to 900 l/s. They are available with weather proofed casings suitable for both fl at and pitched roofs.
Completing this comprehensive new line up and designed for smaller applications, the eDF series of ducted single extract fans off ers duties up to 900 l/s. Ideal for use in small offi ces, where the occupant requires manual control over air fl ow, this fan requires a separate ECO-SPEED controller, which enables manual variable local speed control with an off position. The eDF Plus comes as standard with the Eco-SF controller, which allows trickle and boost options with speed adjustment. This controller can be enabled/disabled via a BMS/VFC time switch with an off position. The eDF series also includes an external weather proofed version.
www.dunham-bush.co.uk
Russ Harju, product manager, Fieldpiece Instruments, said: “It’s easy to receive and document a complete system snapshot.” Using Power (kW), phase rotation, True RMS, Inrush features, and super thin Molex test leads, the fi eld technician can easily test HVACR electrical equipment. As these new meters are CAT IV rated at 600 Volts, they cover higher levels of transient overvoltage.
www.fi eldpiece.com
DHD Cooling
DHD Cooling has a 12-page full colour brochure covering its range of services, including preventative and on-going maintenance, cooling solutions, performance enhancement, and a range
of complementary systems that can be supplied for cooling towers. It shows how DHD has worked with multi-national clients to benchmark their cooling plants and provide targeted maintenance plans to maximise effi ciency and reliability. This allows companies to plan maintenance spend and focus on systems with the greatest return or need the most work.
DHD works directly with clients to provide cooling solutions to suit any plant or requirement. Evaporative, hybrid, dry and adiabatic cooling systems and equipment can be supplied and designed to assist and enhance cooling, along with full service from start to fi nish. DHD provides performance enhancement by comparing current performance against calculated potential performance. The assessment enables easy ROI calculations on any improvement works. It also covers additional and complementary systems which can be installed for maximum effi ciency.
www.dhdcooling.co.uk
www.acr-news.com
December 2019 45
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