Design Memo Collection

HVAC and Mechanical Engineering Design Guides

Technical guides covering HVAC system design, selection, controls, and commissioning for commercial buildings in Australia.

Design Memos

NCC

2025 Compliant

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HVAC and Mechanical Engineering Design Guides

38 design memos in this collection

Air Handling Unit Selection and Specification

Air Conditioning System Types Explained

Air Conditioning Troubleshooting Guide for Building Managers

BMS Specification for Mechanical Services

Chilled Water System Design Basics

HVAC Design for Commercial Fitouts

Cool Room and Freezer Room Design

Ductwork Design and Sizing to AS 4254

Exhaust Air Heat Pumps for Hot Water

Heat Recovery Ventilation

How to Read Mechanical Engineering Drawings

HVAC Controls Sequences of Operation

How Much Does HVAC Design Cost for a Commercial Building?

How Long Does HVAC Design Take for a Commercial Building?

Minimum Insulation Requirements for HVAC Ductwork

HVAC Maintenance Schedule for Commercial Buildings

HVAC Noise Criteria for Commercial Buildings

Plant Room Design and Access Requirements

Post-Occupancy HVAC Commissioning and Tuning

Refrigerant Piping and AS/NZS 5149 Safety

Refrigerant Transition: R-410A to R-32 & R-454B

Retrofit HVAC Design for Existing Commercial Buildings

Roof-Mounted Equipment Coordination

Coordination of Services in Ceiling Voids

Split System vs Central Plant: Which Is Right for Your Commercial Building?

Make Good HVAC Obligations: Commercial Leases

Tenant Services Coordination During Fitout

Thermal Comfort Basics

Underfloor Air Distribution (UFAD) Systems

Variable Air Volume (VAV) System Design

VRF System Design for Multi-Storey Commercial

VRF vs Chilled Water: Which System for Your Building?

VRF vs Ducted Split System for Commercial Buildings

Ceiling Void Clearance Requirements for Mechanical Services

Acoustic Separation for Mechanical Plant Rooms

Commissioning and Handover Requirements for Building Services

Heat Pump Hot Water Systems for Commercial Buildings

HVAC Design for Restaurants, Gyms, and Retail Fitouts

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Ventilation and Air Quality Compliance

NCC Compliance and Section J Energy Efficiency

Construction Certificates and Engineering Reports

Building-Type HVAC

Fire Protection Engineering

Hydraulic Engineering

Electrical Engineering

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