Streamlining UFH Commissioning: Introducing the TS-35 Ascent Thermal Actuator

In the world of professional underfloor heating (UFH) installation, time is the ultimate currency. Whether you are balancing a complex multi-zone commercial project or a residential retrofit, the efficiency of your components determines the success of your commissioning.

Today, Whisper Controls is proud to announce the launch of the TS-35 Ascent—a 230V electrothermal actuator specifically engineered to eliminate common installation bottlenecks while delivering precision control.

The Commissioning Game-Changer: The MO Clip

The standout innovation of the TS-35 is its unique 90-degree Manually Open (MO) clip. Every engineer knows the frustration of trying to fill or flush a system before the electrical second-fix is complete.

By lifting the MO clip, you mechanically lock the valve in an open position without needing a shred of electrical power. This not only drastically reduces system filling and flushing time but also lowers internal tension, allowing the grey M30 x 1.5mm collar to thread onto the manifold with zero resistance.

Engineered for System Synergy

A thermal actuator shouldn’t just move; it should work in harmony with the wider system. The TS-35 utilise a wax-filled capsule expansion principle, providing a controlled 3–5 minute opening time.

When used in conjunction with the Whisper KF Range of wiring centres, this opening window aligns perfectly with built-in boiler and pump delay logic. This synergy ensures that the manifold is fully open before the circulator engages, effectively preventing "water hammer" and protecting the longevity of the pipework.

Compliance as Standard

With the 2021/2023 uplift to Building Regulations Approved Document L, precise zonal control is no longer optional—it is a mandate. The TS-35 provides the 130N driving force required to ensure tight valve closure and reliable flow management, making it an essential component for Part L compliant installations.

Furthermore, the TS-35 is built for the long haul. While the EN 60730 standard requires only 6,000 cycles, the Ascent has been performance-tested to 100,000 cycles.

Why Trade Professionals are Switching to Whisper:

• IP54 Durability: Protection against dust and water splashes in manifold cupboards.
• Visual Confidence: A cylindrical pop-up pin provides instant visual verification of the "On" position.
• Open-Loop Versatility: Ideal for creating permanent bypass loops for heat pumps in high-thermal-mass areas.
• Five-Year Warranty: Backed by our standard installation warranty and a £5,000,000 manufacturing defect indemnity.

The TS-35 Ascent isn't just a component; it’s a commitment to "Straightforward Smart Living."

Ready to upgrade your next manifold? View the full technical specifications on the TS-35 Product Page or contact our team by calling 01993 640073.