RACA Journal February 2020 | Page 42

Projects using pre-paid meters which means that all air conditioning supply shall be next to the outside evaporator unit. Supply wiring to the outside condenser unit shall form part of the HVAC Installation. Additionally, all wiring, drainage and refrigerant piping shall be supported by cable trays and no wall mounted wiring or piping will be accepted. All cable trays and trunking will also form part of the HVAC installation. Ducting that will ventilate the office spaces and surrounding walk areas. 40 RACA Journal I February 2020 As the Facility will have stalls that function independently, the HVAC billing thereof (electricity) also had to take this into account. All HVAC equipment shall be interlocked with the current / future fire alarm system, so that in the event of a fire, the HVAC system must have the capability of switching off automatically. All DX split AC units have added dry contacts www.hvacronline.co.za