Supplied from China
ACMELEC manufactures and supplies HVAC controls from Nanjing, China, for distributors, installers and OEM/ODM projects.
VRF Thermostat
AE-5503-DB-VRF LCD Smart VRF Thermostat
Model identity and technical documents
Specifications & documents · Configuration checklist · Model questions
AE-5503-DB-VRF smart thermostat for VRF air conditioner control. White LCD panel option for VRF air conditioner smart control. Brand-specific wiring and compatibility are confirmed on each VRF brand page.
Best forLCD VRF thermostat projects that need the 5503 style with a different display/panel direction.
Panel styleWhite LCD panel route for buyers comparing display style, housing color and OEM front-panel direction.
Control routeConfirm the indoor-unit model, wiring interface and firmware for the ordered panel configuration.
Before quotationUse this page to evaluate panel style first, then confirm the compatible AC brand page before ordering samples.
- Model
- AE-5503-DB-VRF
- Application
- VRF air conditioner control
- Protocols
- WiFi, Zigbee, Tuya
- Compatible brand
- Daikin, Mitsubishi Electric, Fujitsu General, Toshiba, Hitachi, Carrier, YORK, Hisense, Midea, GREE, Haier, LG, Mitsubishi Heavy Industries
- Product family
- VRF Thermostat
Model identity and document scope
AE-5503-DB-VRF technical file and applicability
AE-5503-DB-VRF identifies the white LCD wall-panel option. The linked AE-5503-VRF PDF is a shared reference, not confirmation that every instruction applies to the ordered DB hardware. The panel specification and indoor-unit interface must be checked separately.
| Product identity | AE-5503-DB-VRF — white LCD panel option; a different display does not establish a new HVAC protocol. |
|---|---|
| Shared document scope | Confirm AE-5503 manual applicability to the ordered DB hardware, firmware and rear-terminal markings before installation. |
| Required technical file | Request indoor-unit-specific wiring, original-controller arrangement, wireless module and any required hub or app details for the quoted configuration. |
Request AE-5503-DB-VRF documents
AE-5503 shared reference PDF · DB configuration checklist · Model questions
Factory supply · B2B
Catalogues, samples & wholesale quotations
Standard MOQ: 60 units/sets
Models, protocols and software versions may be counted separately. Pricing and production lead time depend on the confirmed configuration and quantity.
Sample options
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.
Confirm your application before ordering
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
AE-5503-DB selection notes for VRF projects
AE-5503-DB-VRF is the white LCD panel option. Compare the display first, then confirm the indoor-unit interface and ordered configuration.
Recommended use
LCD VRF thermostat projects that need the 5503 style with a different display/panel direction.
Appearance and panel
White LCD panel route for buyers comparing display style, housing color and OEM front-panel direction.
Compatibility logic
Confirm the indoor-unit model, wiring interface and firmware for the ordered panel configuration.
Quotation preparation
Use this page to evaluate panel style first, then confirm the compatible AC brand page before ordering samples.
Specifications and documents
AE-5503-DB-VRF specifications and documents
The panel specification and the air-conditioner connection are separate checks. Use the model information below for the display and controls, and obtain a wiring diagram matched to the indoor unit and ordered hardware.
Product parameters
| 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) |
Model information
| Shared model | AE-5503-DB-VRF |
|---|---|
| Display / panel | White LCD panel option |
| Product form | Wall-mounted smart VRF thermostat |
| Smart options | WiFi, Zigbee, Tuya |
| Supported brand route | Daikin, Mitsubishi Electric, Fujitsu General, Toshiba, Hitachi, Carrier, YORK, Hisense, Midea, GREE, Haier, LG, Mitsubishi Heavy Industries |
| Brand-specific part | Wiring diagram, firmware matching and indoor unit compatibility |
| OEM/ODM scope | Logo, panel, firmware, packaging and manual language by project |
Documents and decision notes
- Use this page for the 5503-DB appearance route and OEM comparison.
- Available control functions depend on the indoor unit, matched firmware and ordered configuration.
- Request the wiring diagram and firmware confirmation for the complete indoor-unit model.
Display and operation
- Room temperature and set temperature display
- Cooling, heating, ventilation and dehumidification mode indication
- Wind speed display and fan speed key
- Week, time, timing and child lock display
- WiFi or Zigbee indicator according to selected configuration
- Mode, wind speed, up, down and ON/OFF touch keys
Selection reference
AE-5503-DB-VRF: display choice versus connection choice
Choose AE-5503-DB-VRF for its white LCD panel. If you prefer a different display, compare the AE-669 black curved LCD option; a different screen does not by itself add HVAC compatibility or a new communication protocol.
| Selection item | Check before ordering |
|---|---|
| Panel identity | AE-5503-DB-VRF: white LCD. Include this model reference in the sample request. |
| HVAC connection | Provide indoor-unit brand/model and current controller wiring. Match the panel, interface hardware and firmware as an assembly. |
| Wireless version | State WiFi or Zigbee requirements explicitly. Confirm the ordered module and any required hub; the options list is not a promise of simultaneous radios. |
| Documents | The linked AE-5503 manual is a shared reference. Confirm its applicability to the DB variant and request the matching wiring diagram. |
For an installation using Mitsubishi Electric, start with the Mitsubishi Electric thermostat range. For a gateway rather than a wall thermostat, compare AcmeLink ME separately; its specifications are not automatically inherited by this panel.
Application details
Where this model is used
- VRF or multi-split air conditioner smart control projects
- Apartments, offices, hotels and commercial HVAC retrofit projects
- Smart home channels that need app or voice assistant control
- OEM thermostat programs for regional HVAC brands and importers
Recommended inquiry 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
Control functions and buyer value
Confirm which control functions are included in the ordered configuration. Do not assume that every protocol or feature is available on every version.
Function 1
Confirm the exact indoor-unit model, interface and matched controller configuration
Function 2
WiFi, Zigbee, Tuya control options according to the selected configuration
Function 3
Remote app control and smart scene integration where supported
Function 4
OEM panel, logo and documentation support for HVAC customers
Technical checklist
Key points to confirm before order
Exact configuration depends on project requirement, so ACMELEC confirms the real HVAC system before quotation and sample preparation.
- Confirm the exact AC brand and indoor unit model before sample or bulk order.
- VRF control compatibility may depend on indoor unit interface, generation and wiring method.
- For brand projects, provide target market and required smart platform before quotation.
- For hotels or apartments, confirm quantity, room control logic and installation schedule.
Specification summary
Model information
| Model | AE-5503-DB-VRF |
|---|---|
| Product family | VRF Thermostat |
| Application | VRF air conditioner control |
| Protocol / function options | WiFi, Zigbee, Tuya |
| Compatible system | Daikin, Mitsubishi Electric, Fujitsu General, Toshiba, Hitachi, Carrier, YORK, Hisense, Midea, GREE, Haier, LG, Mitsubishi Heavy Industries |
| 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 |
| Compatible air conditioner brand | Daikin, Mitsubishi Electric, Fujitsu General, Toshiba, Hitachi, Carrier, YORK, Hisense, Midea, GREE, Haier, LG, Mitsubishi Heavy Industries |
| 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 |
OEM/ODM options
- Logo printing and front panel appearance direction
- Packaging, label and English manual support
- Firmware or function configuration discussion by project
- Sample verification before bulk order
Product FAQ
AE-5503-DB-VRF selection questions
What distinguishes AE-5503-DB-VRF from AE-940-VRF?
AE-5503-DB-VRF is the white LCD panel option; AE-940-VRF uses a curved TFT color-screen panel. Compare the display separately from the indoor-unit interface, firmware and wireless version.
Can I use the linked AE-5503 manual to install the DB version?
The linked AE-5503-VRF manual is a shared reference. Confirm that it applies to the ordered AE-5503-DB-VRF hardware and request the matching wiring diagram before installation.
Does one AE-5503-DB-VRF configuration work with every listed VRF brand?
No. The brand list identifies selection routes, not universal compatibility. Send the complete indoor-unit model, controller-terminal photos and required WiFi or Zigbee configuration for confirmation.
Explore the range
Related products
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- Model
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- Protocol
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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.
Manual cover: AE-6603-VRF. The corresponding 55 and 66 series share functions, electrical specifications and wiring. The 55 series has a plastic enclosure; the 66 series has an aluminium-alloy enclosure. Enclosure material in this manual applies to the 66 series.