Supplied from China
ACMELEC manufactures and supplies HVAC controls from Nanjing, China, for distributors, installers and OEM/ODM projects.
VRF Thermostat
CN14 configuration and document checklist
AE-669 is the primary ACMELEC thermostat route for supported Fujitsu General and O General indoor units with the CN14 control-board interface.
Configuration and documentation
The page links an existing AE-669 reference PDF, but a model-matched installation manual for the ordered Fujitsu General CN14 configuration is not confirmed here. Request the matching CN14 terminal diagram, power requirements and firmware confirmation; do not use the file name or panel appearance as evidence of applicability.
| Interface route | Fujitsu General / O General CN14 route documented on this page; confirm full indoor-unit model and matched firmware |
|---|---|
| Before quotation | Full indoor-unit model and suffix, connector and original controller photos, required operating functions, wireless version and app or hub requirements. |
| Validation record | Confirm the delivered hardware and firmware and test the required functions on the target indoor unit before bulk ordering. Keep a record of the delivered firmware and the controls checked on that unit. |
CN14 connection reference · Model questions · Specifications and reference file
Factory supply · B2B
ACMELEC manufactures and supplies HVAC controls from Nanjing, China, for distributors, installers and OEM/ODM projects.
Models, protocols and software versions may be counted separately. Pricing and production lead time depend on the confirmed configuration and quantity.
After requirements and payment are confirmed: stock samples approximately 3 working days; functional/protocol configuration 15–20 working days; logo, manual or packaging adjustments approximately 10 working days.
Send the complete indoor-unit model, communication connector or wiring photos, required protocol and control functions. Compatibility depends on the exact unit and ordered configuration.
Model-specific information
Select the AE-669 panel together with the Fujitsu General / O General indoor-unit model, CN14 interface and ordered firmware.
Black LCD VRF thermostat projects that need a simple, cost-effective smart panel route.
Black LCD curved-screen panel with clean numeric display, suitable for practical VRF control upgrades.
Fujitsu General / O General CN14 connection route; confirm the exact indoor unit, wiring and firmware before ordering.
Good for customers who want a simpler LCD display instead of a full color TFT screen.
Model and interface details
The Fujitsu General / O General CN14 connection reference below is the route described on this page. Match the exact indoor-unit interface, rear-terminal markings and firmware; shared panel appearance does not establish interchangeable wiring or functions.
| Temperature sensing element | Thermistor |
|---|---|
| Control accuracy | ±1°C |
| Installation hole spacing | 60mm (standard) |
| Work environment | 0-45°C |
| Shell material | PC+ABS flame retardant |
| Temperature range | 16-32°C (adjustable) |
| Shared model | AE-669-VRF |
|---|---|
| Display / panel | Black LCD curved-screen panel |
| Product form | Wall-mounted smart VRF thermostat |
| Smart options | WiFi, Zigbee, Tuya |
| Documented interface route | Fujitsu General / O General CN14 route documented on this page; confirm full indoor-unit model and matched firmware |
| Brand-specific part | Wiring diagram, firmware matching and indoor unit compatibility |
| OEM/ODM scope | Logo, panel, firmware, packaging and manual language by project |
Professional detail
AE-669 is the black LCD curved-screen thermostat route presented here for supported Fujitsu General / O General CN14 indoor-unit configurations. Confirm the complete indoor-unit model, connector, existing controller wiring and matched firmware before ordering.
Fujitsu General / O General CN14 thermostat route requiring exact indoor-unit and firmware matching.
Confirm indoor unit model, interface generation and current controller wiring before sample or bulk order.
Specify the required wireless protocol and confirm Tuya app or gateway requirements for the ordered version.
Choose the AE appearance/model first, then confirm the AC brand wiring and firmware route.
Product overview
AE-669 is the black LCD curved-screen thermostat route presented here for supported Fujitsu General / O General CN14 indoor-unit configurations. Confirm the complete indoor-unit model, connector, existing controller wiring and matched firmware before ordering.
This model belongs to the VRF Thermostat family. Confirm the exact HVAC model, wiring interface and required control configuration before requesting a quotation.
Application details
To speed up quotation, include HVAC brand/model, protocol requirement, order quantity, target market, logo needs and certification requirements.
A model-matched manual is not confirmed here. Request the manual and wiring diagram for the exact ordered version before installation.
Function details
Confirm which control functions are included in the ordered configuration. Do not assume that every protocol or feature is available on every version.
Confirm the exact indoor-unit model, interface and matched controller configuration
WiFi, Zigbee, Tuya control options according to the selected configuration
Remote app control and smart scene integration where supported
OEM panel, logo and documentation support for HVAC customers
Technical checklist
Exact configuration depends on project requirement, so ACMELEC confirms the real HVAC system before quotation and sample preparation.
Specification summary
| Model | AE-669-VRF |
|---|---|
| Product family | VRF Thermostat |
| Application | VRF air conditioner control |
| Protocol / function options | WiFi, Zigbee, Tuya |
| System matching required | Fujitsu General / O General CN14 route documented on this page; confirm full indoor-unit model and matched firmware |
| OEM/ODM | Logo, panel, firmware, packaging and manual support available by project |
| Documents | English manual or technical file can be supplied when available |
| Buyer type | HVAC distributors, brand owners, system integrators and project buyers |
| Brand and interface scope | Fujitsu General / O General CN14 route documented on this page; confirm full indoor-unit model and matched firmware |
| Control direction | VRF / multi-split indoor unit smart control |
| Smart function options | WiFi, Zigbee, Tuya |
| Typical project | Hotel rooms, apartments, offices and commercial HVAC retrofit |
| Buyer confirmation | Indoor unit model, wiring/interface, protocol and target quantity |
Fujitsu General CN14 connection reference

The illustrated route uses the indoor-unit control board without a separate gateway or power supply. Confirm the exact indoor-unit model and connector before ordering.
Documented interface answers
The illustrated route uses the indoor-unit CN14 connector with X, Y, A1 and B1 terminals. Confirm the complete indoor-unit model, connector and ordered firmware before using this reference.
No. Compatibility depends on the exact indoor-unit model and control-board interface. Confirm both before ordering.
The illustrated CN14 route connects to the indoor-unit control board without a separate gateway or power supply. Confirm this arrangement for the exact indoor-unit model and ordered configuration; it is not a claim about every Fujitsu General system.
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Samples, MOQ and lead time