Universal module
Part number: CUCM
Overview
The CUCM is an interface module that is used to connect equipment such as AC units, Ducted gas heaters and Outside air ventilation system to an iZone system. The CUCM forms part of a Universal Module Kit (CUCMK), which is made up of a Universal Module (CUCM) and a 1m CAT5 cable (CFC1S).
Installation Guides
- Connect to units that accept maximum 24V control signals.
- Connect cables as shown in
- Configure the correct system type on the touch screen
- Configure the Run on timer, anti-cycle timer, 2nd stage offset, 2nd stage delay and fan control on the touch screen (if applicable)
- Test for correct operation
This table translates Nexus settings with Nova settings as they appear on the screen.
| Nova settings | Nexus settings |
|---|---|
| Heat only | 1‑Stage Gas Heat + 1 × Fan Speed |
| Cool only | N/A |
| Heat & Cool | 1‑Stage Gas Heat + 1‑Stage Cool + 1 × Fan Speed |
| 2‑Stage Heat & 1‑Stage Cool | 2‑Stage Gas Heat + 1‑Stage Cool + 1 × Fan Speed |
| Heat Pump | 1‑Stage R/C + 1 × Fan Speed |
| Heat Pump — 3‑Stage Fan Speed | 1‑Stage R/C + 3 × Fan Speeds |
| Heat Pump & Heat (Aux) | 1‑Stage R/C + Aux Heating + 1 × Fan Speed |
| 2‑Stage Heat Pump & 1‑Stage Heat | 2‑Stage R/C + Aux Heating + 1 × Fan Speed |
| Gas Heat | Gas Heating Thermostat Only |
| 2‑Stage Gas Heat & 2‑Stage Cool | 2‑Stage Gas Heat + 2‑Stage Cool + 1 × Fan Speed |
User Guides
The user interface will show power on/off, fan speeds and modes depending on the system type selected.
Troubleshooting
No known issues have been documented for this product at this time.
Specifications
| Specification | Description |
|---|---|
| Power supply | CAT5 cable |
| Communications | CAN Bus / iZone NET |
| Control ports | 5 voltage free contacts + 1 Common |
| Dimensions | 32H x 119W x 105L mm |
| Weight | 160g |
Firmware and Updates
CUCM 2.7 - Jun 2024
- Changed the setpoint hysteresis to 0.5 deg C (IRD-162)