HRD

Pool air handling units – dehumidification with heat recovery

The HRD range are sophisticated air handling units incorporating hybrid heat pump and fresh air dehumidification technology. With dynamic heat recovery to swimming pool water and air using a heat pump, the HRD is the ultimate solution for a leisure centre swimming pool. This range is purpose designed for swimming pool environmental control, providing the necessary comfort, moisture related structural protection and economical operation.

Features
- Dynamic heat pump heat recovery to pool and air
- Self-regulating fresh air control
- Automatic control of exhaust air volume to match pool usage
- Free-cooling (HRD 15-20)
- Free-cooling and heat pump air cooling (HRD 25-30)
- Integral LPHW heat exchanger for air heating
- Double skinned insulated cabinet
- Bespoke fan specifications
Options
- Upgraded LPHW heat exchanger for air heating
- Left-hand or right-hand orientation
- Choice of supply fan outlet orientations
- Choice of fan static pressures
- BMS interface
Applications
- Leisure centres
- Olympic pools
- Hotel pools
- Wellness centres
- Health clubs
- Holiday parks & campsites
Dantherm Group

Pool Catalogue

Calorex

Product Catalogue

Specifications	Units	HRD 15	HRD 20	HRD 25	HRD 30
Nominal recirculating air flow	m³/h	12000	19500	25000	35000
Exhaust/fresh air flow (stepped control)	m³/h	6000	13500	18000	23000
Dehumidification @28°C/60% RH by heat pump	l/h	31	45	68	88
Total by heat pump and maximum fresh air	l/h	63	116	152	210
Heat to air
Via heat pump (Mode B)	kW	37	55	72	90
Via standard LPHW @ 80°C	kW	70	100	150	210
Maximum available (Mode B + standard LPHW)	kW	107	155	222	300
Heat to water
Via heat pump (Mode A)	kW	40	60	95	117
Cooling duty
Sensible Mode A	kW	-20	-30	-49	-67
Sensible Mode B	kW			-30	-37
Nominal power consumed (dependent upon main fan duty)	kW	17	23	31	44