NCC 2016 Volume Three
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Section E Heating, Ventilation and Air Conditioning

Section E Heating, Ventilation and Air Conditioning

Part E1 Heating, Ventilation and Air Conditioning Systems

After E1.2(e) insert Vic E1.2(f), (g) and (h) as follows:

Vic E1.2 General requirements

(f)

Condensate drains and bleed down drains installed in heating, cooling and air-conditioning equipment (including evaporative coolers) other than cooling towers must discharge to any of the following—

(i)

an evaporative tray if specified by the manufacturer; or

(ii)

a sanitary drainage system by way of a tundish or self-sealing device, which complies with either clause 4.6.7.8 or clause 13.21 of AS/NZS 3500.2 ; or

(iii)

a surface water drainage system; or

(iv)

an absorption pit, but only if a sanitary or surface water drainage system is not available and the discharge water will not cause damage to buildings or facilities by changing soil moisture conditions; or

(v)

a stormwater downpipe directly over the connection to the roof gutter; or

(vi)

directly to the stormwater downpipe below the connection to the roof gutter provided a means of overflow or reverse flow protection is incorporated.

(g)

Drains from a cooling tower must discharge to a sanitary drainage system in accordance with any applicable trade waste agreement.

(h)

In this clause, bleed down drain means a drain that collects fluid from a valve used for bleeding and purging; evaporative tray means a tray used to gather excess moisture or condensation for the purpose of evaporation.