HRD System

ASK A QUESTION ask a question

Calorex HRD systems

The Heat Recovery Dehumidification (HRD) is a hybrid fresh air dehumidification system with dynamic heat pump heat recovery to swimming pool water and air. The unit will provide the complete answer to humidity control, water/air temperature control and real time fresh air requirements.

By recovering the latent energy in the moisture laden air of a pool hall, your HRD will return this energy to heat the pool water or use it to assist with pool air heating. Furthermore, there is usually sufficient recovered energy to provide all the operational water heating requirements with any further surplus used for air heating.

HRD30
HRD25 side view
  • Features

    • Dehumidification with automatically modulating heat recovery to water and air
    • Automatically adjusting fresh air with heat recovery to air and water
    • Built in LPHW air heater, with control thermostat and three-way valve, for supplementary space heating
    • Dynamic fresh air cooling with heat recovery to water (models 25 and 30 only)
    • Double skinned insulated cabinet
    • Purpose-built to withstand swimming pool hall atmospheres
    • Choice of fan static pressures
    • BMS interface – optional
    • Running costs reduced by up to 70%
    • Carbon emissions reduced by up to 70%
    • Saves installation space and set up time
  • Health clubs & wellness centres

    Swimming pool heat pump and ventilation solutions for health clubs & wellness centres...read more

    Holiday parks and campsites

    Swimming pool heat pump and ventilation solutions for holiday parks and campsites...read more

    Leisure centres

    Whole building solutions for leisure centres and commercial pools...read more

  • HRD systems

    Brochure

    HRD systems

    An effective solution for a modern energy concern

    Technical editorial

    An effective solution for a modern energy concern

  • Specifications Units HRD15 HRD20 HRD25 HRD30
    Dehumification capacity
    Outside air at 29°C DB/20°C WB
    By refrigeration l/hr 31 45 68 88
    Total l/hr 63 116 152 210
    Heat output to water @ 26°C
    Under maximum demand (Mode A) kW 40 60 95 117
    Under maximum demand (Mode B) kW 5 8 18 25
    Heat output to water @ 28°C
    Under maximum demand (Mode A) kW -10 -15 10 14
    Under maximum demand (Mode B) kW 37 55 72 90
    Additional heat output to air @ 28°C 60%RH by LPHW battery
    Water on at 80°C kW 0-70 0-100 0-150 0-210
    Sensible air cooling Mode Mode
    Air @ 29°C, 'air on', 60%RH kW -20 -30 (A)-49
    or
    (B) -30
    (A) -67
    or
    (B) -37
    Recirculating air flow m³/h 12000 19500 25000 35000
    @ Max external total pressure Pa 250* 250* 300* 300*
    Max fresh air introduction m³/h 6000 13500 18000 25000
    @ Max external total pressure Pa 100 100 100 60
    Nominal power installed
    (dependent upon main fan duty) kW 17 23 31 44
    Weight kg 1100 1400 2950 2980
    Mode A = Recovered heat biased to pool water (pool water temperature not satisfied). Default State Mode B = recovered heat biased to pool air (pool water temperature satisfied). Note: "Nominal power installed" is the sum of the electrical motor ratings at full duty. Actual power consumption is dependant upon the level of swimming pool activity. * The nominal operating pressure can be increased or decreased to match the requirements of the installation.
  • Calorex cuts energy costs at Wolverton Pool

    Calorex cuts energy costs at Wolverton Pool

    Swimming success for Calorex

    Swimming success for Calorex

    Calorex is first choice again for holiday park

    Calorex is first choice again for holiday park

    HRD case studies

    HRD case studies

Swimming pool products
youtube

Contact (UK)

Matt Filer

(Phone) 01179 570593 (Mobile) 07775 687809
mjf@dantherm.com


Contact (International)

+44 (0)1621 856611
export@calorex.com