NCC 2016 Volume Three
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Section B Water Services

Section B Water Services

Part B1 Cold Water Services

Delete B1.2(a) and insert NSW B1.2(a) as follows:

NSW B1.2 General requirements

(a)

The design, construction, installation, replacement, repair, alteration and maintenance of cold water services must be in accordance with the following:

(i)

AS/NZS 3500.1 with the following additions:

(A)

After clause 5.3.2(k) add (l) as follows:

(l)

Where valves are located below ground within the property boundary, they shall be provided with a surface box and riser. The box lid shall be permanently marked with a "W".

(B)

After clause 4.6.3.3 insert clause 4.7 as follows:

4.7
Water systems permanently attached to cooling towers

Backflow prevention shall be positioned so that —

(a)

cooling tower air gap must be measured from the rim of the cooling tower basin; and

(b)

if a drinking water service to the cooling tower passes through the basin, the service pipe must be provided with a double wall protection; and

(c)

if a fast fill connection is required, the fast fill line shall terminate externally to the unit, with an air gap over either the basin or a tundish.

Note

NOTE: See NSW Figure B1.2 Typical Cooling Tower Connections.

NSW Figure B1.2 Typical Cooling Tower Connections

v3_nsw_B12_2011.svg
(C)

After clause 16.3.3(c) insert (d) and (e) as follows:

(d)

Single residential dwellings require the following:

(i)

Buried or partly buried rainwater tanks a non-testable dual check valve with atmospheric port is required for containment protection; and

(ii)

a non-testable device for zone protection. The Network Utility Operator reserves the right to require greater backflow for containment.

(e)

Where rainwater tanks are installed for other than a single residential dwelling approval must be obtained from the water supply Network Utility Operator for containment.

(ii)

The requirements of this Part.

Part B2 Heated Water Services

Delete BP2.8(b) and replace with NSW BP2.8(b) as follows:

PERFORMANCE REQUIREMENTS

NSW BP2.8

(b)

* * * * *

Explanatory information

Explanatory information:

Compliance is not required with the national provisions of BP2.8(b) as the sources of energy for new Class 1 and 10 buildings are regulated under BASIX.

Delete BV2.2 and insert NSW BV2.2 as follows:

VERIFICATION METHODS

NSW BV2.2 *  *  *  *  *

Blank clause

This clause has deliberately been left blank.

Explanatory information

Explanatory information:

BV2.2 does not apply in NSW as the sources of energy for new Class 1 and 10 buildings are regulated under BASIX.

Delete B2.2(a) and insert NSW B2.2(a) as follows:

NSW B2.2 General requirements

(a)

The design, construction, installation, replacement, repair, alteration and maintenance of a heated water service must be in accordance with AS/NZS 3500.4 and the requirements of this Part.

Delete B2.4 and insert NSW B2.4 as follows:

NSW B2.4 *  *  *  *  *

Blank clause

This clause has deliberately been left blank.

Explanatory information

Explanatory information:

Compliance is not required with the national provisions of B2.4 as the sources of energy for new Class 1 and 10 buildings are regulated under BASIX.

Part B3 Non-Drinking Water Services

Delete B3.2(b) and insert NSW B3.2(b) as follows:

NSW B3.2 General requirements

(b)

The design, construction, installation, replacement, repair, alteration and maintenance of a non-drinking water service must be in accordance with the following:

(i)

AS/NZS 3500.1 with the following variations:

(A)

All external taps are to comply with clause 9.3.2.3(d)(i) only;

(B)

After clause 10.3(c) insert (d) and (e) as follows:

(d)

Top up from a drinking water supply shall be by an indirect trickle top up with a visible air gap external to the tank.

(e)

There shall be no connection between treated greywater systems and the drinking water, rainwater or other sources of supply.

(ii)

The requirements of this Part.

Part B4 Fire-Fighting Water Services

Part B4 does not apply in New South Wales.

Note:

This Part does not apply in New South Wales as fire-fighting water services are regulated under the Environmental Planning and Assessment Act 1979 and Environmental Planning and Assessment Regulation 2000, which references the Building Code of Australia.