Air Conditioning Split System Building Codes & Rules

Fall

Ground Level

To either Wall

Outdoor

Floor

Mounted

Unit

High Trafficable Areas

From Ceiling

Outdoor

Wall Mounted

Unit

Condensate Drainage^{Tools™ Best Practice}

• Durable Conduit
• Sealed Joints
• Colour-matched to exterior surface
• Extend to
• Garden
• Gutter
• Downpipe
• Above drain

Coolant & Electrical Cable^{Tools™ Best Practice}

• Conceal where possible
• Durable square Cable Ducting or Trunking

Indoor Unit

≥ 50^{Industry Recommendation}

≥ 2m^{Industry Recommendation}

Ceiling Insulation

• Effective insulation preserves cool air
• improves efficiency & cost-effectiveness

Clearances^{Industry Recommendation}

• May vary depending on model
• Verify with Certified Professional for positioning of the unit
• Follow Manufacturer's recommendations

FFL

Drain

Weatherproof

Power Supply

Refrigerant

Pipes

Control^{Tools™ Best Practice}

• Remote controlled
• Wall mounted
• Logical location
• Next to Light Switch or,
• Under unit

Maintenance^{Tools™ Best Practice}

• Retain Manual
• Service as advised
• Clean filters

Outdoor Unit Location^{Industry Recommendation}

• Away from direct sunlight
• In an open area
• Accessible for repair & maintenance
• Close to Indoor Unit to maximise efficiency

Support^{Tools™ Best Practice}

• Wall Mounted
• Use L-Brackets
• Floor Mounted
• Use elevated, durable bases for sites with poor drainage
• Fixed with Bolts

Support - Best Practice^{Industry Recommendation}

• Durable
• Vibration Isolation (Pads)
• No trip or impact risk
• Do not obstruct drainage of Roof Sheets

Indoor Unit Location^{Tools™ Best Practice}

• High trafficable areas
• Centre of space
• Unobstructed
• Verify with Certified Professionals for complex or large spaces

Remote

Control

≥ 1m^{Tools™ Best Practice}

≥ 300^{Industry Recommendation}

Service Clearance

≥ 2m^{Tools™ Best Practice}

≥ 50^{Industry Recommendation}

From Ceiling

≥ 100^{Industry Recommendation}

≥ 250^{Industry Recommendation}

≥ 30^{Industry Recommendation}

≥ 100^{Industry Recommendation}

≥ 250^{Industry Recommendation}

Acoustic Enclosures^{Tools™ Best Practice}

• Consider where noise reduction is necessary

^{Manufacturer's Requirement}

Energy Efficiency

• Inverter^[1]
• Guaranteed energy efficient, quieter, faster cooling, & more durable
• Non-Inverter^[2]
• Easy to repair & maintain, cost less, & suitable for occasional use

Location & Climate Factors for Power Rating

NCC 2022 V1

Inverter & Non Inverter Design Factors

NCC 2022 V1

Ceiling Insulation for Energy Efficiency

NCC 2022 V2

Window Orientation

NCC 2022 V1

Informative

Informative