Conventional single/dual stage systems
Control conventional HVAC single/dual stage units using a Universal Module (CUCM). All Unit Controlling Sensor options are avaliable with these units except for Return Air Sensor control.
To configure the correct options on a Nexus+ wall controllers (CCTSLW+):
- Select Settings -> Configuration -> Configure Air Conditioner -> AC UNIT -> AC settings -> Universal Unit Control -> Tap ✎
- Press down arrow and select the required option from the list
- Press down arrow again and select parameter(s)
- Minimum run time:
2 minutes - Anticycle run time:
2 minutes - Second stage offset:
2.0 °C - Second stage delay:
5 minutes - Cycle fan in heat mode:
Y/N - Cycle fan in cool mode:
Y/N
- Minimum run time:
1 Stage Gas heat
1 Stage Gas heat + 1 Fan speed
1 Stage Gas heat + 1 Stage Cool + 1 Fan speed
2 Stage Gas heat + 1 Stage Cool + 1 Fan speed
2 Stage Gas heat + 2 Stage cool + 1 Fan speed
Brivis Heater + Add-on Cooling
Brivis parameters:
| Parameter | Description | Setting |
|---|---|---|
| 1 | Heat Fan | 1450 |
| 2 | Cool Fan | 1450 |
| 3 | Min Fan | 1200 |
| 6 | S-Air (Supply air setpoint) | 60° |
| 7 | 2 | |
| 8 | 1450 |
NC6 Controller is required to assist with resetting heater faults. This must be removed during iZone operation.