How to prioritise employee comfort and wellbeing, whilst reducing your carbon footprint
Nursing and care home supplier Acticare, has ensured employee comfort and environmental standards are met with the installation of new cooling, heating and ventilation systems at its new-build facility in Hereford.
The office areas, which were completed in December 2018, include open plan spaces, satellite offices and meeting rooms, all of which required a solution that would keep employees comfortable and productive at work.
The company chose the R32 Hybrid VRF system from Mitsubishi Electric to help provide energy efficient air conditioning and meet the buildings high environmental standards. The R32 units are designed to deliver high operational efficiency whilst minimising the global warming potential (GWP) of the system.
By delivering a lower GWP than current refrigerants, the R32 solution can meet both BREEAM building standards for sustainability performance and government environmental regulations – plus future proof against ongoing environmental legislation.
Mitsubishi Electric’s Hybrid VRF system is fundamentally different from traditional VRF systems as it uses water throughout the majority of its pipework to transfer simultaneous heating and cooling to different rooms. However, it still maintains full flexibility in its design, lower annual maintenance costs and advanced controllability.
With both a central controller (AE-200E) and individual remote controls, employees have the power to adjust the level of heating or cooling in individual spaces, which is particularly useful for the satellite offices at the new site, which are not attached to the main building.
The system was designed and installed by Business Solutions Partner EMS Ltd. Alan Meredith, Director at EMS said “We like what the R32 Hybrid VRF achieves,
in particular the enhanced occupier comfort of using water instead of refrigerant in the conditioned space, plus also the environmental benefits of using the low GWP R32 refrigerant. The system proved easy to install and we’re looking forward to measuring the benefits for use on future projects”.
The use of R32 was also an important factor for Phil Boyman, Director at Acticare, who said “One of the main considerations when choosing an air conditioning system was how well it would future-proof the building against changing environmental standards. The Hybrid VRF units were able to do so by meeting current F-Gas regulations.”
The unique Hybrid VRF uses R32 refrigerant between the outdoor compressor and an indoor Hybrid branch controller box. From here, water is used to transfer heating or cooling to the individual indoor units throughout the building.This removes the need for leak detection equipment within occupied spaces and also means that Acticare can benefit from reduced maintenance costs because there is no requirement for annual leak-detection checks.
Mitsubishi Electric’s Lossnay heat recovery ventilation units were also chosen to work alongside the R32 Hybrid VRF systems, with the role of improving indoor air quality. The Lossnay units supply clean, fresh air into the building, while simultaneously extracting stale air, and recovering valuable heat energy for maximum efficiency.
R32 Outdoor Units
x 2 PURY-EM300YNW-A Outdoor Unit
x 1 PUZ-ZM35VKA Outdoor Unit
Master HBC Controllers R410A (HVRF)
x 2 CMB-WP1016V-AA
x 5 PLFY-WP-VFM-E 600×600 4-Way Blow Ceiling Cassette Indoor Units (x 1 WP15 / x 2 WP20 / x 1 WP25 / x 1 WP32)
x 10 PLFY-WP-VBM-E 4-Way Blow Ceiling Cassette Indoor Units (x 3 WP32 / x2 WP40 / x 5 WP50)
x 4 PLFY-WP-VMA-E Ceiling Concealed Ducted Indoor Units (x1 WP32 / x 3 WP50)
x 1 PKA-M35HA Wall Mounted Indoor Unit
Lossnay Mechanical Ventilation Heat Recovery (MVHR) Units
x 2 LGH-RVXT-E-1 Lossnay heat exchanger (x1 LGH-150RVXT-E-1 / x 1 LGH-250RVXT-E-1)
x1 AE200 Centralised Controller
x 20 PAR-33MAA-J Remote Controllers
x1 PZ-61DR-E Remote Controller