iZone C325S Samsung Air-Conditioner Interface Module
The iZone C325S is a communication interface designed to connect an iZone C225 control system with compatible Samsung high-static ducted air conditioners. It enables integrated air-conditioning and zoning control through the iZone touchscreen, temperature sensors and mobile app when a Smart Hub is installed.
Key Features
Integrates compatible Samsung ducted systems with the iZone C225 CPU
Controls system on/off, operating mode, set temperature and fan speed
Supports return-air, zone, master and RF temperature-sensor control
Suitable for selected Samsung high-static R410A ducted systems
Allows air-conditioning and zone operation from one iZone interface
App control available when connected to an iZone Smart Hub
Compatible Indoor Units
| Capacity | Indoor model |
|---|
| 7.1 kW | AC71HBHFKH/SA |
| 9.0 kW | AC90HBHFKH/SA |
| 10.0 kW | AC100HBHFKH/SA |
| 12.0 kW | AC120HBHFKH/SA |
| 14.0 kW | AC140HBHFKH/SA |
The C325S is intended for the listed Samsung high-static ducted systems. Newer Samsung NASA-protocol units require the C325SN interface.
Connection Requirements
Connects to the indoor unit’s F3/F4 communication terminals
Wiring polarity is critical
Requires shielded two-core twisted-pair control cable
Communication cable is supplied by the installer
Connect the F3/F4 cable to the AC Unit Control Cable connection on the C225/C325S
Important Installation Information
Ensure F3 and F4 are matched correctly at both ends of the communication cable. Incorrect polarity may prevent communication or damage the control equipment.
Always confirm the complete indoor and outdoor model numbers before ordering.
Source: iZone Samsung compatibility documentation
