Projects kitchen . In the usual means of doing this GPCE would supply canopy extraction and filtered make-up air from outside , however this wouldn ' t have worked for this application because of the specific temperature need . GPCE therefore designed and installed a hybrid type evaporative cooling unit to provide cooling in summer by means of evaporation , and in winter by means of a small heat pump arrangement to heat the air coming into the kitchen . This was supplied by Ecoaire .
The unique elements in this project came around through some specific requirements using a heat pump chiller for the make-up air on the air handlers and makeup air on the passages and corridors .
The system that GPCE designed into the restaurant kitchen , is itself a very economical way of achieving a lower temperature with a heating and cooling function without actually installing a whole air conditioning system .
Air distribution was certainly another challenge and unique element for the design . A competent interior designer was on board who had quite stringent requirements with many of the diffusers – for example needing to be hidden , and many special types of diffusers – such as slot and radials where possible to meet the desired aesthetics . GPCE did meet all requirements where both the architectural and interior design teams were well pleased .
Bedrooms are always a challenge , specifically the distribution of air into the space to ensure that air doesn ' t dump on the beds . The way the air is taken out of the bathrooms was another notable element in this project because the bathrooms were essentially a combination of the bedroom in an open plan style . Achieving decent distribution and getting return air out of the bedrooms is always a unique challenge while meeting both interior requirement and functionality . RACA
© RACA Journal | Benjamin Brits © RACA Journal | Benjamin Brits
Roof plant – typical bedroom bathroom extract system .
Basement level – typical jet fan installation for day-to-day and smoke extraction .
Project name List of professionals Owner / Developer Developer / Hotel Operator Architect / Designer Quantity Surveyor Interior Design
Consulting engineer
Contractors
HVAC and associated product suppliers
Electrical Mechanical Wet services Structural Main building HVAC & R
Radisson Hotel & Convention Centre , O . R . Tambo Name of company Akani Properties ( Pty ) Ltd Radisson Bentel Associates International Brian Heineberg & Associates LLP Designs CKR Consulting Engineers Graeme Page Consulting Engineers CC Wet Management Services V & H Consulting Tri-Star Construction Ductech Chillers – Ciat AHU ’ s – King Air ( Supplied by Sky Shot ) Fan Coil Units – Aerolique Fans – Luft Air Terminals – Rickard / Trox Heat Pumps – Ciat Boutique Hotel DX Splits – LG , Samsung Evaporative Cooler – EcoAire Signature Restaurant DX Splits – Airwell Amani Spa DX Splits – LG , Samsung
www . hvacronline . co . za RACA Journal I July 2021 35