Protocol conversion

Connect native VRF communication to standard automation

AcmeLink_GW handles the brand-side communication while RS485 provides a standard control route for the selected interface or automation system.

Brand-matched input

Native terminal names vary by system, including F1/F2, X/Y, P/Q, A/B, H/L and other brand-specific routes.

RS485 output

Designed for standard automation integration. Confirm the required Modbus register and control architecture during project matching.

Flexible interface

Can be paired with selected touch interfaces offering WiFi, Zigbee and Tuya options, or integrated into a compatible centralized controller.

Project configuration

Polarity, external-device requirement and centralized address behavior differ by HVAC system.

Supplied compatibility matrix

Representative supported brands

  • Daikin, Mitsubishi Electric, Mitsubishi Heavy Industries and Hitachi
  • Toshiba, Panasonic, Hisense, Haier and LG
  • York, Gree, Midea, TCL, Samsung and selected regional systems

This list is a project-screening reference only. Exact support depends on model, terminals, polarity and addressing requirements.

Confirm before sample

  • Complete outdoor and indoor-unit model numbers
  • Existing controller and system architecture
  • Communication terminal names and clear wiring photo
  • Required number of zones and centralized addresses
  • RS485/Modbus or wall-interface control objective

System specification

AcmeLink_GW gateway summary

ConverterAC-VRF-RS485-E1000 / AcmeLink_GW project platform
Input protocolMatched native VRF connection
Output protocolRS485 standard automation
Power supply12V DC, dedicated terminal block
MountingDIN rail or surface mount
Interface optionsTouch wall interfaces with selected WiFi, Zigbee or Tuya functions
Typical controlCool, heat, fan, dry, auto, setpoint, room temperature and status, subject to project configuration

Why it is separate from S20

AcmeLink_GW is a gateway architecture, not simply a wall thermostat. It is the better route when the buyer needs Modbus/BMS integration or a separate protocol-conversion device.

Compare the S20 wall thermostat

FAQ

AcmeLink_GW project questions

Is AcmeLink_GW a universal plug-and-play gateway?

No. The platform is configured for the selected HVAC protocol. Wiring, polarity, addressing and external-device requirements must be checked for each system.

Can AcmeLink_GW connect to a BMS?

Its RS485 output is intended for automation integration, but the required Modbus mapping and project architecture should be confirmed before quotation.

Does every installation need an external device?

No. The supplied matrix shows that the requirement varies by brand and system configuration.

Samples, MOQ and lead time

Purchasing information

  • Pricing is quoted according to model, configuration and order quantity.
  • Standard MOQ: 60 units/sets.
  • Standard stock samples: approximately 3 working days.
  • Functional or protocol-configured samples: approximately 15–20 working days.
  • Logo, manual or packaging-adjusted samples: approximately 10 working days.
  • Mass-production lead time is confirmed according to quantity and production schedule.

Logo, packaging and certification

  • Free laser-engraved product logo when the standard MOQ is met.
  • Orders below 500 units/sets use standard white corrugated packaging.
  • Full-color logo packaging is available from 500 units/sets.
  • CE, RoHS, applicable RED, FCC and relevant wireless-module documents are confirmed by model and target market.
Read the complete samples, MOQ and OEM/ODM policy