Supplied from China
ACMELEC manufactures and supplies HVAC controls from Nanjing, China, for distributors, installers and OEM/ODM projects.
VRF Thermostat
Daikin P1/P2 WiFi VRF Thermostat — AE-5503
AE-5503 is an aftermarket smart room controller for compatible Daikin VRF indoor units using the P1/P2 wired remote-controller bus. P1 and P2 are a non-polarized two-wire connection.
Specifications & manual · P1/P2 wiring diagram · Compatibility questions
Best forWhite LCD VRF thermostat projects that need a clean panel style and practical smart control.
Panel styleWhite square LCD panel, suitable for projects where a lighter wall finish or simple room-control look is preferred.
Control routeSelect the WiFi/Tuya version for app control; confirm the exact ordered configuration for the Daikin indoor unit.
Before quotationRecommended when the customer wants a familiar thermostat appearance with brand-specific VRF compatibility confirmation.
- Model
- AE-5503-VRF
- Application
- Compatible Daikin VRF indoor units
- Protocols
- WiFi, Tuya
- Controller interface
- Daikin P1/P2, non-polarized two-wire bus
- Product family
- VRF Thermostat
Configuration and documentation
AE-5503 model and document checklist
AE-5503 is the white LCD thermostat route for compatible Daikin P1/P2 indoor units. Confirm the exact indoor-unit model and existing controller terminals, the ordered WiFi/Tuya version and matched firmware before selecting a sample.
| P1/P2 connection | Use the documented non-polarized two-wire controller route only with the confirmed Daikin indoor-unit interface. |
|---|---|
| Manual identity | The linked manual cover names AE-6603-VRF. Read the existing 55/66 series scope note; enclosure material in that manual applies to the 66 series. |
| Configuration request | Send the full indoor-unit model, existing controller and terminal photos, required operating functions and wireless version. |
Request AE-5503 configuration documents
P1/P2 wiring diagram · 55/66 series manual scope · 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
Is AE-5503 suitable for your Daikin VRF project?
Choose this route only when the indoor unit uses the Daikin P1/P2 wired remote-controller interface. Send the indoor-unit model before ordering so ACMELEC can confirm compatibility.
Recommended use
White LCD VRF thermostat projects that need a clean panel style and practical smart control.
Appearance and panel
White square LCD panel, suitable for projects where a lighter wall finish or simple room-control look is preferred.
Interface requirement
Connects to the Daikin P1/P2 wired remote-controller bus. P1 and P2 can be connected in either polarity.
Quotation preparation
Send the exact Daikin indoor-unit model, existing controller photo, required smart functions and project quantity.
Specifications and documents
AE-5503 specifications and English manual
Review the white LCD panel, operating parameters and manual together with the Daikin P1/P2 wiring diagram. Confirm the complete indoor-unit model and ordered WiFi/Tuya configuration before selecting a sample.
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
| Model | AE-5503-VRF |
|---|---|
| Display / panel | White LCD panel |
| Product form | Wall-mounted smart VRF thermostat |
| Smart options | WiFi, Tuya |
| Target system | Compatible Daikin VRF indoor units |
| Wired interface | P1/P2 non-polarized two-wire controller bus |
| Compatibility check | Required using the exact indoor-unit model before ordering |
| OEM/ODM scope | Logo, panel, firmware, packaging and manual language by project |
Documents and decision notes
- Use this model when a clean white thermostat appearance is preferred.
- Confirm WiFi/Tuya app control for the exact ordered version.
- Check the Daikin P1/P2 wiring diagram below against the existing controller terminals.
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
- Wireless-status indication depends on the selected configuration
- Mode, wind speed, up, down and ON/OFF touch keys
Professional detail
How to evaluate this VRF thermostat model
AE-5503-VRF is the ACMELEC product route for compatible Daikin VRF indoor units that use the P1/P2 wired remote-controller bus. It adds a modern wall panel and optional WiFi/Tuya control while retaining a direct two-wire controller connection.
Product role
White LCD wall thermostat for compatible Daikin indoor units with the P1/P2 wired-controller interface.
Compatibility
Confirm indoor unit model, interface generation and current controller wiring before sample or bulk order.
Function route
Confirm WiFi and Tuya app requirements for the exact ordered version.
Buyer action
Confirm the Daikin indoor-unit model and P1/P2 interface, then select the panel and smart-control configuration.
Product overview
AE-5503-VRF product detail
AE-5503-VRF is intended for Daikin VRF projects where the indoor unit provides the P1/P2 wired remote-controller interface. It is not a universal replacement for every Daikin controller or every HVAC communication bus.
Before quotation, provide the exact indoor-unit model and a photo of the existing controller terminals. ACMELEC will verify the interface and prepare the appropriate sample, wiring information and OEM configuration.
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.
Open English manualFunction 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, 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-VRF |
|---|---|
| Product family | Daikin-compatible VRF thermostat |
| Application | Compatible Daikin VRF indoor-unit room control |
| Controller interface | P1/P2 non-polarized two-wire bus |
| Smart options | WiFi and Tuya, according to configuration |
| Temperature range | 16-32°C, adjustable |
| Control accuracy | ±1°C |
| Installation spacing | 60 mm standard mounting-hole spacing |
| OEM/ODM | Logo, panel, firmware, packaging and manual support by project |
| Buyer type | HVAC distributors, system integrators and project buyers |
| Typical project | Hotels, apartments, offices and Daikin VRF retrofit projects |
| Buyer confirmation | Exact indoor-unit model, existing controller/interface 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
Daikin P1/P2 installation
AE-5503 P1/P2 Wiring Diagram
This is a non-destructive installation route through the existing communication port. Confirm the indoor-unit model and existing controller interface before sample or bulk order.
Documented product answers
AE-5503 Daikin questions
Does AE-5503 work with every Daikin VRF indoor unit?
No. It is for compatible Daikin indoor units using the P1/P2 wired-controller bus. Confirm the exact indoor-unit model before ordering.
Are the AE-5503 P1/P2 wires polarized?
No. The two P1/P2 controller wires can be connected in either polarity.
Does AE-5503 support app control?
Yes, when the WiFi/Tuya version is selected. Voice-service availability depends on the configuration and target market.
Why does the AE-5503 manual cover name AE-6603-VRF?
The existing manual-scope note states that 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, so the manual enclosure material applies to the 66 series. Confirm the ordered AE-5503 hardware, P1/P2 wiring and firmware before using the reference.
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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.
AE-5503 and AE-6603 reference manual scope
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.