Typical Dew Point Control Architecture for Residential Radiant Cooling Systems

After understanding why condensation occurs and how it can be prevented, the next step is to examine how a dew point control system is implemented in real residential projects.

This article outlines a proven, engineering-level control architecture widely adopted in UFH and UFC residential applications.

Core Components of a Dew Point Control Architecture

1. Environmental Sensors

Multi-parameter sensors measure indoor temperature and relative humidity.

The dew point is calculated locally or by the controller based on these inputs.

2. Zone Controllers

Each thermal zone is equipped with an independent controller.

This enables local decisions based on zone-specific dew point conditions.

3. Actuators and Valves

Thermal actuators or motorized valves regulate water flow to radiant loops.

When condensation risk is detected, the controller limits or shuts off cooling output.

4. Central Coordination Layer

A coordination layer integrates radiant cooling with ventilation or dehumidification systems,

preventing conflicts between cooling demand and humidity conditions.

Typical Control Logic Workflow

• Continuous monitoring of temperature and humidity

• Real-time dew point calculation

• Dynamic limitation of surface temperature setpoints

• Cooling suspension during condensation risk

• Automatic recovery under safe conditions

Why This Architecture Works in Residential Projects

This architecture provides:

• Fast local response to condensation risk

• True independent zone control

• Flexible HVAC subsystem integration

• Reduced commissioning and maintenance risks

Summary

Reliable radiant cooling systems depend on a structured dew point control architecture.

For residential UFH and UFC projects, dew point control must be designed as a system-level function.

Build the Perfect Dew Point Control Architecture for Efficient Residential Cooling

Understanding the details of dew point control architecture and how it applies to residential projects can help you create a worry-free cooling environment. If you're designing or upgrading your residential system, it's essential to implement an advanced dew point control architecture.