Our industry capability is built on deep expertise in complex application scenarios and commercial transaction models, proven through long-term collaboration with leading global organizations:
-3 Fortune Global 500 companies in joint development programs
-10 industry-leading customers in deep vertical application partnerships
-5 major world famous Large-Scale DIY retailer as long-term collaborators
-10 global real estate groups across project-based deployments
These partnerships validate our ability to operate effectively across cultures, languages, industries, and diverse go-to-market channels, delivering reliable solutions in complex global environments.
We are deeply rooted in diverse markets such as commercial buildings, real estate, home living, energy efficiency, and residential renovation. We offer one-stop solutions—from terminal control products to system integration—with rapid customization as our core strength.
By leveraging intelligent connectivity and digital energy-saving technologies, we ensure our clients can stay focused on market development while relying on a partner equally committed to their success.
We don’t just make products — we help our customers become industry leaders.
Global Partner for Innovation and Reliability in HVAC Controls
Saswell always been our core goal to serve as a solid backing for customers in consolidating their leading position in the market, while providing Fast-customized solutions to high-quality customers worldwide.
We provide intelligent control solutions for heat pump and underfloor heating systems, offering both heating and cooling functions. Our solutions support both wired and wireless installation, meeting the needs of new residential buildings and home renovations, helping distributors and brands quickly launch high-value-added products. Through flexible customization and open compatibility, we assist our partners in achieving differentiated strategies, enhancing market competitiveness, and meeting the demands of Europe’s energy-saving and smart home trends.
We offer both wired and wireless solutions, with customizable interfaces, protocols, and functionalmodules based on brand or project requirements. This helps distributors and brands quickly launchdifferentiated products and shorten development cycles.
Enhance Market Competitiveness
We help professional clients gain an edge under European energy regulations and smart hometrends. Our high value-added solutions strengthen brand influence and expand customer reach.
SAS936BWCHB-7-DFZ(N)
● Power Supply: 2 x 1.5V AA Alkaline Batteries (LR6 Model)
● Battery Life: 1 year
● Temperature Display Range: 0~50°C
● Temperature Set Range: 5~50°C
● Temperature Display Accuracy: 0.1°C
● RF Wireless Transmission Distance: 100 meters (in open space)
● Zigbee Wireless Transmission Distance: 30 meters (in open space)
● Dimensions: 100 x 100 x 19.6 mm
● Storage Temperature and Humidity: -10~60°C, 25~90% Relative Humidity (non-condensing)
● Operating Temperature and Humidity: 0~50°C, 25~90% Relative Humidity (non-condensing) SCU217DE-485(N)
● Power Supply: 100-240VAC 50/60Hz
● Maximum Current: 10A
● Load Current Output: 250VAC 8(5)A
● Operating Temperature: 0°C~50°C, 0-80% RH
● Storage Temperature: -10°C~60°C, 0-90% RH
● Dimensions: 298 x 88 x 64 mm
Master [SAS931XWCH-0-BUS-WIFI(TY)] / Slave [SAS931XWCH-0-BUS-S]
● Power and Signal Input: DC12~18V, non-polar carrier input(Power to control center, max 100mA)
● Storage Environment Temperature and Humidity: -10~60°C, 0~90% RH (non-condensing)
● Operating Environment Temperature and Humidity: 0~50°C, 0~80% RH (non-condensing)
● Wi-Fi Antenna Transmission Frequency (Main Controller): 2.4GHz
● Wi-Fi Wireless Transmission Distance (Main Controller): 60m in open space
● Temperature Display Range: 0~50°C
● Display Accuracy: 0.1°C
● Color: White
● Dimensions: 86 x 86 x 13 mm
● Protection Rating: IP21 SCU211CH-BUS
● Power Supply: 100-240VAC 50/60Hz (Maximum Current 10A)
● Storage Environment Temperature and Humidity: -10~60°C, 0~90% RH (non-condensing)
● Operating Environment Temperature and Humidity: 0~50°C, 0~80% RH (non-condensing)
● Color: White
● Dimensions: 298 x 88 x 66 mm
● Protection Rating: IP40
FAQ
How does the system prevent condensation during underfloor cooling mode?
Our master controller features integrated Dew-point Protection logic. By monitoring real-time humidity levels from the thermostats, the system automatically closes the zone valves before condensation can form on the floor surface. This ensures a safe and comfortable hydronic cooling environment while protecting premium flooring from moisture damage
Can I use this solution for a retrofit project without running new wires?
Absolutely. Our Wireless RF Solution is specifically designed for HVAC retrofits. The battery-powered thermostats communicate via a stable 868MHz frequency with the master hub, eliminating the need for wall cutting or cabling. This non-invasive installation is the preferred choice for European home renovations and historical building upgrades.
How does the "Intelligent Pump Linkage" improve the system’s SCOP?
To maximize Seasonal COP (SCOP), our controller employs smart linkage logic that only activates the water pump when there is an actual heating or cooling demand from at least one zone. By preventing the pump from running unnecessarily, the system significantly reduces energy consumption and meets strict EU ErP energy directives.
Is this 8-zone controller compatible with major Air-to-Water heat pump brands?
Yes. The solution is designed for high interoperability. It can interface with major heat pump brands (such as Daikin, Panasonic, LG, etc.) via Volt-free (Dry Contact) signals or Modbus-RTU for seamless heating/cooling switchover. It bridges the gap between the heat source and terminal management.
What are the benefits of the "Dual-Actuator per Port" design for large villas?
For large-scale projects with extensive manifold setups, each zone port on our master hub can drive two thermal actuators simultaneously. This reduces the number of hubs required, simplifies the wiring architecture, and lowers the overall Project TCO (Total Cost of Ownership) for the contractor.
Can the system be managed remotely via smart home ecosystems?
Our solution is natively integrated with the Tuya Smart Ecosystem. Users and contractors can manage all 8 zones remotely via the App, or use AI Voice Control (Alexa/Google Home). For OEM partners, we offer rapid brand customization of the UI to align with your corporate identity.
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