
The SASWELL WCH Series is a dedicated hydronic control platform engineered specifically for modern Air-to-Water Heat Pump systems. Unlike traditional heating-only boiler thermostats, the WCH Series naturally integrates heat pump changeover, UFH + FCU multi-terminal coordination, and predictive dew-point management for radiant cooling.





| Metric / Spec | Pure Radiant System (UFH Only) | Hybrid Radiant + FCU System | Advanced Radiant Climate Control System |
| Terminal Type | UFH only | UFH + FCU | UFH + FCU + capillary |
| Cooling Performance | comfort cooling | fast cooling | precision climate control |
| Dew-Point Algorithm | — | ✓ | ✓ |
| System Complexity | low | medium | high |
| Installation Cost | lower | higher | highest |
| Installation Type | wired (SAS931WCH) or wireless (SAS936BWCH) | wired (SAS922BFCH) | wired (SAS965FCH) |
| Typical Project | standard homes | mixed terminal homes | high-performance homes |
Pro Tip from SASWELL HVAC Engineers
Heat Pump Integration
Compatible with air-to-water heat pumps — supports heating, cooling, and changeover via dry contacts, changeover signals, or Modbus. See our guide on ERP compliant heat pump integration →
Multi-Terminal Coordination
Scales from UFH-only to UFH+FCU and UFH+Capillary layouts, equipped with predictive dew-point logic for Advanced tier solutions. See how seasonal mode switching works in mixed-terminal systems →
Building Management Integration
Modbus RTU communication built into Hybrid and Advanced units to enable centralized zone monitoring, fault diagnostics and unified energy reporting.
Smart Home Connectivity
Optional Wi-Fi and Zigbee modules available on selected models, supporting voice assistant linkage for full residential smart automation.
Contact our friendly customer service team for any questions, concerns, or suggestions. We'd love to hear from you.
Headquarters Hotline: +86 755 61218391 Headquarters Hotline +86 755 61218391
Headquarters Email: info@saswell.com
MENA Tech Support Hotline: +97155 6743682
MENA Tech Support Email: support@saswell.com
