24-Hour Reply Guarantee · Trade Quotes Only · Stocked in Australia
Technical Guides
HVAC Zoning Guides
Practical references for Australian HVAC installers and ducted air conditioning technicians working on zoning systems — component behaviour, voltage selection, sizing and fault diagnosis, written for the job rather than the brochure.
All guides
What Makes Up an HVAC Zoning System
Every component in a ducted zoning system — controller, transformer, motor cable, damper actuator and shaft coupling — and how the signal flows between them.
Read guide →24V vs 240V Damper Motors: Which to Use
Why low-voltage actuators dominate Australian residential ducted zoning, where mains-voltage motors still appear, and what to check before substituting one for the other.
Read guide →How to Size a Zoning System
Zone count, controller capacity, transformer amperage, cable run lengths and constant zone allowance — with a worked example for a four-bedroom home.
Read guide →Replacing a Faulty Zone Damper Motor
Symptoms, fault isolation between actuator, cable, transformer and controller, checking for 24V at the motor, and matching specifications on a replacement.
Read guide →Related
Browse the full HVAC zoning component range or see how we supply the parts together as complete zoning kits.