Indoor Pool Air Handling Units + Dehumidification + Ventilation Systems

Advanced Climate Control for an Indoor Swimming Pool

Penrith, NSW · 2025

Advanced Climate Control for an Indoor Swimming Pool

The Brief

Pine Group was engaged to install a DANTHERM XKS 12/24 Indoor Climate Control System for an indoor swimming pool in Penrith. Given the region’s extreme summer temperatures and cooler winters, the goal was to ensure consistent humidity and temperature regulation for year-round comfort.

A heat pump chiller providing both heating and cooling was implemented so the system could adapt to seasonal variations, maintaining a stable, comfortable indoor environment while optimising energy use and preserving indoor air quality.

The Challenge

Penrith’s climate swings between intense summer heat and cool winters, placing conflicting demands on a single system. Every project of this kind also has to balance fresh air supply against energy efficiency without compromising comfort.

  • Maintaining stable temperature and humidity across extreme seasonal variation.
  • Preventing condensation-driven structural damage and preserving indoor air quality.
  • Distributing air evenly using a combination of external and internal ducting types.
  • Integrating hydraulic and electrical control systems for fully automated operation.

 

  • Up to 80% Energy savings from the crossflow heat exchanger
  • 100% Outdoor air free-cooling available via integrated bypass
  • Year-round Consistent temperature & humidity control

Our Approach & Solution

The installation centred on the DANTHERM XKS 12/24 — a highly efficient outdoor air dehumidification system with integrated climate control, paired with a heat pump chiller providing both hot and cold water depending on seasonal demand.

Air distribution used a custom ducting design: galvanised steel ductwork externally for durability, and fabric duct internally to promote even airflow across the pool area. Electrical supply and control wiring enabled precise automation, while hydraulic connections — including solenoid valves and actuators — linked the chiller to the air coils for enhanced efficiency.

The DanX XKS system’s advanced crossflow heat exchanger captures and recycles energy, its integrated outdoor air mixing function supplies only the fresh air required, and a free-cooling bypass introduces 100% outdoor air in summer. An additional cooling coil further enhances dehumidification and cooling during hot periods.

Outcomes

The result is a highly efficient, reliable and energy-conscious indoor climate control system that ensures optimal conditions for the swimming pool area all year round. The client now benefits from:

  • Consistent temperature & humidity control.
  • Significant energy savings.
  • A healthier, more comfortable environment.
  • Lower operational costs through optimised air handling.
  • 38% Reduction in HVAC energy consumption
  • 54% Average RH maintained at deck level
  • <0.2 ppm Chloramine — below AIRAH threshold
  • 100% Pool hall access maintained during installation

Have a similar project?

Talk to our team about the right dehumidification configuration for your facility.