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Calorex Delta – swimming pool air handling units
Calorex Delta – swimming pool air handling units

Delta series – swimming pool air handling units

2-4-6-8-10-12-14-16

The sophisticated Delta air handling units incorporate hybrid heat pump and fresh air dehumidification technology. With dynamic heat recovery to swimming pool water and air using a heat pump, a Delta solution is the ultimate choice for a commercial or public indoor swimming pool.

 

Key features

  • Dynamic heat pump heat recovery to pool and air
  • Self-regulating fresh air control with heat recovery
  • Automatic control of exhaust air volume to match pool usage
  • Free-cooling (Delta 1-2)
  • Free-cooling and heat pump air cooling (Delta 4-16)
  • Integral LPHW heat exchangers for pool and air
  • Speed controllable EC/inverter fans in all models
  • PLC control with 5.7" touchscreen user interface
  • Remote monitoring/control​

Remote monitoring/control​

  • Screen mirroring to Android/iOS mobile devices using third-party app
  • Screen mirroring to web browser with ActiveX
  • BMS interfaces for Modbus, BACnet IP and BACnet MS/TP
  • Wired remote control interfaces

Options

  • Delta 2-6 single or three phase
  • Delta 8-16 three phase only
  • Upgraded LPHW heat exchanger for air heating
  • Left-hand or right-hand orientation (Delta 4-16)
  • Top, side or bottom supply fan outlet
  • Front or rear supply fan outlet (Delta 14-16)
  • Rear exhaust and fresh air connections (Delta 14-16)

Product specifications

Nominal recirculation air flow

2,600
m³/h
 

Exhaust/fresh air flow (stepped control)

130-1,300
m³/h
 

Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air

10.9
l/h
 

Heat to air

 

Via heat pump (Mode B)

4.9
kW
 

Via standard LPHW @ 80°C

22
kW
 

Via upgraded LPHW @ 55°C

19
kW
 

Total Mode B + standard LPHW

26.9
kW
 

Heat to pool water

 

Via heat pump (Mode A)

5.5
kW
 

Via LPHW @ 80°C

23
kW
 

Via LPHW @ 55°C

11
kW
 

Total Mode A + LPHW

28.5
kW
 

Cooling duty

 

Total

kW
 

Sensible

kW
 

Nominal power consumed

2.9
kW
 

R407c gas weight/CO2 equivalent

3.0/5.32
kg/t
 

Width

1740
mm
 

Depth

654
mm
 

Height

1685
mm
 

Weight

310
kg
 
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