Audited Supplier
1. Wire Thermostat: user interface to interact with the heat pump 
| Avaliable Product Type | 86 Type IPS Touch Screen Wire Thermostat 86 Type LCD Touch Button Wire Thermostat 4.3 Inch TFT Touch Screen Wire Thermostat 7 Inch TFT Touch Screen Wire Thermostat |
| Input Voltage | DC 12V±5% |
| Rated Power | <6W |
| Communication Protocal | Modbus-RS485 |
| Remote Control | App Controlled |
| Dimension | 86x86x20mm, 170*105*33mm, 226*163*38mm |
| Display Method | IPS Screen, LCD Screen, TFT Screen |
| Resolution | 480*480,480*272,480*800 |
| Interaction | Single Point Touch Screen, Touch Button |
| Operating Temperature Range | -20~70°C |
| Storage Temperature Range | -30~70°C |
| Operating Humidity Range | 0%-90% RH |
| Applicable Altitude | 2000M |
| Communication Interface | RS485*1 |
| Optional Function | WIFI, 4G |
| Certificates | CE,RoHS,ISO |
| UI | UI Provided by Customer |
2. Main Control Board: Reveive signal from wire thermostat, WIFI and sensors, to control the whole heat pump system
| Application Scenarios | Air to Water Heat Pump, Water Heater, Water Cooler, Floor Heating |
| Rated Voltage | Single Phase AC220V/Three Phase AC380V/Solar Power Supply |
| Operating Temperature Range | AC175V-AC265V |
| Operating Power Frequency | 50/60HZ |
| Operating Temperature Range | -30~60°C |
| Operating Humidity Range | 10%~95%(No frosting and condensation) |
| Storage Temperature Range | -30~60°C |
| Applicable Altitude | 2000M |
| On-off Input | 9 channels |
| Analog Input | 17 channels |
| Relay Output | 16 channels |
| DC Blowers Output | 2 channels |
| Expansion Valve Output | 4 channels |
| Pump | 2 channels |
| Communication Interface | RS485*3 |
| APP-Controlled | Supports |
| Certificate | TUV |
| Customized | Supports |
| Refrigerant Type | R410;R32;R290 |
| Functions | Cooling, Heating, Hot Water |
| Dimension(mm) | 251*161*41.6 |
3. Inverter Compressor Drive Board: to drive inverter compressor for the heat pump system
| Product Name | Inverter Compressor Driver PCBA |
| Usage Scenarios | Heat Pump/Pool Heat Pump/Dehumidifier/Dryer/Water Heater/Water Cooler |
| Rated Voltage | Single Phase AC 220V; Three Phase AC 380V; Solar Power |
| Operating Voltage Range | AC175V-AC265V; AC303V-AC456V |
| Operating Power Frequency | 50/60HZ |
| Rated Power Input | Single Phase: 1.5kW/1.8kW/2.8kW/4kW/5kW6kW/8kW Three Phase: 4kW/5kW/6kW/7kW/8kW/19kW/12kW/15kW/16kW/18kW/25kW |
| Heat-dissipating Method | Air Cooling/Liquid Cooling |
| Compressor Type | BLDC/PMSM Compressor |
| Range of Output Mechanical Frequency | 20Hz-120Hz |
| Power Factor | 0.99 |
| Output Efficiency | 0.93~0.95 |
| Communication Mode | RS485, MODBUS |
| Refrigerant Type | R410;R290;R32 |
| Operating Temperature Range | -30~60°C |
| Storage Temperature Range | -30~80°C |
| Operating Humidity Range | 10%~95%(No frosting and condensation) |
| Applicable Altitude | 2000M |
4. Accessory Products: sensors, reactor, PFC inductor, filter board
we use the world-famous brand OHIZUMI sensors for high quality garantee
National High Tech Enterprise Certificate / Quolity Certificate / Product Certificate / Patents / ETL Report / UL Report / TUV Report / Software Copyright
ASL founded in Guangzhou, China in 2005,
Launched ASL's first DC inverter PCBA for water source heat pump in 2007,
Obtained ISO9001 Quality Management System Certification in 2008,
Launched ASL's first DC inverter PCBA for water & ground source heat pump in 2009,
Become the first in China to launch DC inverter controller PCBA for swimming pool heat pump in 2014,
Built ASL's own SMT line in 2015,
Being awarded the title of High-Tech Enterprise in Guangdong in 2017,
Built ASL's own sensor/cable processing production line in 2020,
Annually production of DC inverter PCBA reached 30w+ in 2021,
ASL Foshan branch founded in 2022
ASL has been positioned in the global market since its inception, with products exported along with customers' Heap Pumps to over 120 countries and regions worldwide. It holds a market share of over 60% in the vertical segment of DC inverter pool heat pump .
120+ countries & regions: Heat pumps with ASL PCB inside are being used in 120+ countries and regions
30w+ pieces: 30w+ pieces annual production of DC inverter heat pump PCBA
60%+ global market share: 60%+ global market share in DC Inverter Pool Heat Pump
Usage Scenarios:
solar heat pump;water heater;water cooler;floor heating;heat pump dehumidifier;heat pump dryer;air to water heat pump;swimming pool heat pump;air source heat pump;ground source heat pump;geothermal heat pump
Leading DC Inverter Compressor Drive Algorithm and Heat Pump System Control Logic
Leading Production and Quality Control
•We possess comprehensive software and hardware design capabilities, as well as established production processes and quality standards, which together ensure high-quality product assurance for our customers.
Comprehensive Accessory Products
•Comprehensive accessory products, including wire thermostat, sensors, reactors, filter boards, and cables.
1. What is delivery time?
A: 20-30 days.
2. What is warranty of products?
A: All products are with 1 year guarantee.
3. Are the PCBA products standardlized for all heat pumps?
A: Nope, since the logic and the structure for different brands of heat pump are diverse, the PCBA products are not standardlized. We need to customized for every customer.
4. What's the process to corperate with ASL?
A: We undertake the following SOP to provide customer serviese:
(1)technical communicate for: the usage scenarios, the heat pump functions, the voltage and power required, the compressor's brand and type
(2)ASL provide our suggestion for the appropriate combo list for the whole heat pump solution and the quotation
(3)place the sample pieces order
(4)Detail technical design for software and hardware
(5) Logic confirmation from customers
(6)ASL produce and deliver the sample pieces
(7) sample confirmation from customers
(8) place the batch order
(9)batch order production and delivery
(10)after sales service
