8-zone Lite CPU module
Part number: C156
Overview
The Lite CPU Module (C156) is the processing unit for the Navi zone control systems (C265K). It handles zone control logic, communicates with AC unit interface modules (C325#) and Navi wall controllers. Supports up to 8 zones and cannot be expanded.
Installation Guides
Install the C156 close to the ducted AC indoor unit, usually on top of the fan coil unit. Make sure the antenna is tighten and pointing vertically upwards. Refer to the Navi zone control kit for more detailed installation instructions. The Lite CPU Module cannot be paired with a Smart Hub (COCBH) or Wireless Temperature Sensors (CRFSW). The C156 is does not support motors that rely on timing logic. As a result, Belimo-type motors are not compatible with the C156 — see below for the compatibility list.
User Guides
Troubleshooting
No known issues.
Specifications
| Specification | Description |
|---|---|
| Power supply | 24VAC 50Hz |
| Casing material | Fire retardant ABS plastic |
| Operating temperature | Up to 65⁰C |
| Communications | Wired CAN Bus Wireless 433Mhz (iZone proprietary protocol) |
| Number of zones | 0 to 8 (RJ11/RJ12 connectors) |
| Dimensions | 32H x 121W x 117L mm Height 124mm with antenna vertical |
| Weight | 200g |
Firmware and Updates
C156 3.84 - Aug 2026
- First release