iZone CEXT Zone Extender Module
The iZone CEXT is an expansion module designed to increase the capacity of an iZone C225 system from 8 to 14 climate-control zones. It provides the additional RJ12 motor connections required for larger residential and light-commercial ducted systems.
Key Features
Expands an iZone C225 system from 8 to 14 zones
Provides additional RJ12 zone-motor connections
Supports standard open/close and climate-controlled zones
Connects directly into the iZone control-module assembly
Communicates with the C225 CPU through CAN Bus
Powered directly from the C225 connection
Compact fire-retardant ABS enclosure
Compatible with supported iZone zone motors and dampers
Application
The CEXT is suitable for installations requiring zones 9–14, including:
Larger single-storey homes
Multi-storey residential systems
Offices and light-commercial applications
Systems requiring individual temperature control across additional rooms
Specifications
| Specification | Details |
|---|
| Supported system capacity | Up to 14 zones |
| Zone connections | RJ12 |
| Power supply | Supplied through the C225 connection |
| Communication | CAN Bus |
| Enclosure | Fire-retardant ABS plastic |
| Maximum operating temperature | 65°C |
| Dimensions | 32 × 119 × 65 mm |
| Weight | 113 g |
Installation Information
Switch off power before connecting the CEXT. Install the modules in the following order:
C225 CPU → CSL screen module, if fitted → CEXT → C325 air-conditioner interface
After installation, update the number of zones in the iZone installer configuration and assign the correct operating type to each additional zone.
Source: iZone CEXT documentation
