Release notes - AC gateways

Release notes - AC gateways

Part

Code

Rev

Release date

Changes

S/W

Part

Code

Rev

Release date

Changes

S/W

Mitsubishi Heavy Industries

C325MHI2

B

May-2024

  • As per C325MHI

Daikin

C325D2

A

Nov-2022

  • Changed R19 to 200 ohms

Gree (U-Match)

C325G3

A

Dec-2024

  • First release

Gree (ducted)

C325G2

A

Apr-2023

  • First release

Fujitsu

C325F2

B

May-2024

  • Changed transceiver components to work on 12V

LG

C325L2

B

Apr-2021

  • Add isolation and allocate test pin

Hitachi

C325H

A

Nov-2022

  • First release

Haier

C325HI2

A

May-2024

  • First release

Hisense

C325HS

A

Dec-2024

  • First release

Mitsubishi Electric

C325M2

A

Jun-2025

  • Fix to quiet causing incorrect error messages causing nova to log errors.

Panasonic

C325P2

B

Jan-2026

  • Initial Release

Toshiba

C325T2

A

Samsung

C325SN

A

Apr-2020

  • First release

TCL AC Module

C325TC

A

Jan-2026

  • Initial Release

1.0

Temperzone

C325TZ

A

Sep-2017

  • Changed resistor values

  • Added transistors for polarity inversion

N/A

Actron

C325A

Braemer

C325B

Kaden

C325KAD

Carrier

C325C

Midea

C325MD

Rinnai

C325R

Mitsubishi Heavy Industries

C325MHI2 2.5 - May 2024

  • First release

Daikin

C325D2 1.9 - Mar 2026

  • Fixed an issue where static pressure messages were processed even when static pressure control was not supported by the Daikin unit.

C325D2 1.7 - Jan 2026

  • Updated static pressure setting to support 15 selectable levels (1–15)

  • Add ability to use Daikin BRC controller and iZone controller at the same time

  • Improved handling of MSG3A and MSG3B communication messages

C325D2 1.6 - Test Release

  • Added ability to modify static pressure for Daikin

  • Added support for BRC Daikin Wall Controller

C325D2 1.5 - Test Release

  • Fix to no response detected bug

C325D2 1.4 - Dec 2024

  • Added support for VRF control

C325D2 1.3 - Mar 2024

  • Fix issue when AC connected and working but status is no comms

C325D2 1.2 - Nov 2022

  • Improved message detection

  • Get more temperature information from the AC unit

Gree (U-Match)

C325G3 1.0 - Dec 2024

  • First release

Gree (Ducted)

C325G2 1.1 - Dec 2023

  • First release

Fujitsu

C325F2 1.11 - Jun 2024

  • fix fan speed selection

  • improve AC message processing

LG

C325L2 1.1 - Jun 2022

  • First release

Panasonic

C325P2 1.7 - Nov 2026

  • Fixed issue where temporary fault notifications and error codes were incorrectly reported in fault history

  • Resolved brief appearance and disappearance of error messages

  • Improved system stability to prevent intermittent unit pauses during operation

  • Fixed incorrect fault records visible in Nexus fault history

  • Disabled unintended debug messages mistakenly enabled in v1.6

C325P2 1.6 - Nov 2023

  • Enable communication to Toshiba VRF

TCL

C325TC 1.0 - Jan 2026

  • Initial release

Toshiba

Refer to Panasonic above.

Samsung

C325SN 1.0 - Jun 2020

  • First release

Hitachi

C325H 2.4 - Jun 2020

  • First release

Haier

C325HI2 1.2 - Jan 2026

  • Improved command handling by adding validation checks for correct sensor location

C325HI2 1.1 - May 2025

  • Improve AC communication

C325HI2 1.0 - Jun 2024

  • First release

Hisense

C325HS 1.0 - Dec 2024

  • First release

Mitsubishi Electric

C325M2 1.3 - Sep 2025

  • Full VRF cassette fan swing control support.

  • Fixed Nova controller crash in Quiet Mode with four fan speeds enabled.

C325M2 1.2 - Feb 2025

  • Fix to remove errors reported by Nova when fan speed is set to quiet mode.

C325M2 1.1 - Dec 2024

  • Added Mitsi Electric 4th fan speed

C325M2 1.0 - Sep 2020

  • First release