Campsie Medical and Dental Centre Case Study

Hybrid VRF eliminates need for refrigerant leak detection and alarms and provides comfortable experience for staff and patients.

Campsie Medical and Dental Centre air conditioning

Challenge

Campsie Medical and Dental Centre needed a system that provided an optimum temperature in rooms with varied operational requirements such as doctors’ suites and waiting rooms to provide patients with the best possible care. Traditional ducted systems in these applications may have temperature differences between the different rooms, where some are too cold, and some are too warm. Variable Refrigerant Flow (VRF) systems provide individual temperature control for each room but due to AS1677 requirements for refrigerant leak detection, the centre would have to install expensive refrigerant detectors and alarms which needed yearly calibration to comply with Australian law.
Campsie Medical and Dental Centre realized they needed a smarter, space-saving solution that was uniquely tailored to suit the practice’s individual room sizes and specificities.

Solution

After a rigorous evaluation process, Campsie Medical and Dental Centre implemented the Mitsubishi Electric Hybrid VRF, which allows heat exchange between refrigerant and water. The large open plan areas used standard VRF while the doctors’ suites used Hybrid VRF negating the need for refrigerant leak detection and alarms and allowing the centre to reallocate funds to other areas that enhance the patients’ experience and working environment for the staff. All the systems seamlessly integrated with the standard Mitsubishi Electric centralised controller AG-200A.

Results

Since the installation of the system in 2014, staff noted that the Mitsubishi Electric Hybrid VRF has made a big difference to the comfort of our doctors’ consultation rooms and the waiting room. Doctors and patients feel more comfortable thanks to the mild conditions the Hybrid VRF provides.

“It was clear that the existing air conditioning system did not support the needs of the centre and its patients. When we assessed the situation, we could see that a Hybrid VRF system would provide a stable temperature in the conditioned space, as the air coming from the indoor units feels milder to occupants,” said Atesh Mani, National Product Manager, Mitsubishi Electric Australia.

Background

Primary Health Care Limited is one of Australia's leading listed healthcare companies. Primary Health Care own and manage Campsie Medical and Dental Centre in South Western Sydney, which recently completed the first ever commercial installation of Mitsubishi Electric Hybrid VRF. Due to the success at Campsie, Primary Health are rolling out HVRF to more of their Centres.

PURY-WP200YJM-A R410A HYBRID CITY MULTI Series Outdoor Unit

PURY-WP200YJM-A R410A HYBRID CITY MULTI Series Outdoor Unit

Equipment List

(2) PURY-WP200YJM-A R410A HYBRID CITY MULTI Series Outdoor Unit
(1) PURY-P500YSJM-A R410A R2 Series Outdoor Unit
(2) CMB-WP108V-G HBC controller
(1) CMB-P108V-GA1 BC controller main
(9) PEFY-WP25VMA-E Ceiling concealed type Indoor Unit
(1) PEFY-WP50VMA-E Ceiling concealed type Indoor Unit
(1) PEFY-P140VMH-E Ceiling concealed type Indoor Unit
(1) PEFY-P80VMH-E Ceiling concealed type Indoor Unit
(1) PEFY-P200VMHS-E Ceiling concealed type Indoor Unit
(1) PEFY-P125VMH-E Ceiling concealed type Indoor Unit
(1) AE-200E Central controller
(10) PAR-U02MEDA ME remote controller
(3) CMY-R160-J1 Joint pipe
(1) CMY-R100VBK Twinning kit