Calorex 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.
Calorex Delta – swimming pool air handling units
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Calorex Delta 10-12-14-16 – swimming pool air handling units
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How the Delta system works inside a pool hall
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Calorex Delta 4 front view
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Calorex Delta 4 side view
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Calorex Delta 4 back view
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Delta control home screen
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Delta control panel settings
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Calorex Delta set points and switches
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Calorex Delta home screen plus
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Key features
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Dynamic heat pump heat recovery to pool and air
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Self-regulating fresh air control with heat recovery
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Automatic control of exhaust air volume to match pool usage
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Free-cooling (Delta 1-2)
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Free-cooling and heat pump air cooling (Delta 4-16)
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Integral LPHW heat exchangers for pool and air
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Controllable rpm EC/inverter fans in all models
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PLC control with 5.7" touchscreen user interface
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Remote monitoring/control
Remote monitoring/control
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Screen mirroring to Android/iOS mobile devices using third-party app
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Screen mirroring to web browser with ActiveX
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BMS interfaces for Modbus, BACnet IP and BACnet MS/TP
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Wired remote control interfaces
Options
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Delta 2-6 single or three phase
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Delta 8-16 three phase only
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Upgraded LPHW heat exchanger for air heating
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Left-hand or right-hand orientation (Delta 4-16)
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Top, side or bottom supply fan outlet
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Front or rear supply fan outlet (Delta 14-16)
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Rear exhaust and fresh air connections (Delta 14-16)
Product specifications
| Specifications | Units | DT 2 |
|---|---|---|
| Nominal recirculation air flow |
m³/h
|
2,600
|
| Exhaust/fresh air flow (stepped control) |
m³/h
|
130-1,300
|
| Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air |
l/h
|
10.9
|
| Heat to air | ||
| Via heat pump (Mode B) |
kW
|
4.9
|
| Via standard LPHW @ 80°C |
kW
|
22
|
| Via upgraded LPHW @ 55°C |
kW
|
19
|
| Total Mode B + standard LPHW |
kW
|
26.9
|
| Heat to pool water | ||
| Via heat pump (Mode A) |
kW
|
5.5
|
| Via LPHW @ 80°C |
kW
|
23
|
| Via LPHW @ 55°C |
kW
|
11
|
| Total Mode A + LPHW |
kW
|
28.5
|
| Cooling duty | ||
| Total |
kW
|
0
|
| Sensible |
kW
|
0
|
| Nominal power consumed |
kW
|
2.9
|
| R407c gas weight/CO2 equivalent |
kg/t
|
3.0/5.32
|
| Width |
mm
|
1740
|
| Depth |
mm
|
654
|
| Height |
mm
|
1685
|
| Weight |
kg
|
310
|
| Specifications | Units | DT 4 |
|---|---|---|
| Nominal recirculation air flow |
m³/h
|
3,000
|
| Exhaust/fresh air flow (stepped control) |
m³/h
|
150-1,500
|
| Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air |
l/h
|
12.5
|
| Heat to air | ||
| Via heat pump (Mode B) |
kW
|
5.1
|
| Via standard LPHW @ 80°C |
kW
|
25
|
| Via upgraded LPHW @ 55°C |
kW
|
21
|
| Total Mode B + standard LPHW |
kW
|
30.1
|
| Heat to pool water | ||
| Via heat pump (Mode A) |
kW
|
5.8
|
| Via LPHW @ 80°C |
kW
|
33
|
| Via LPHW @ 55°C |
kW
|
16
|
| Total Mode A + LPHW |
kW
|
38.8
|
| Cooling duty | ||
| Total |
kW
|
-4.2
|
| Sensible |
kW
|
-2.9
|
| Nominal power consumed |
kW
|
2.9
|
| R407c gas weight/CO2 equivalent |
kg/t
|
6.0/10.64
|
| Width |
mm
|
1840
|
| Depth |
mm
|
704
|
| Height |
mm
|
1970
|
| Weight |
kg
|
350
|
| Specifications | Units | DT 6 |
|---|---|---|
| Nominal recirculation air flow |
m³/h
|
4,000
|
| Exhaust/fresh air flow (stepped control) |
m³/h
|
200-2,000
|
| Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air |
l/h
|
16.6
|
| Heat to air | ||
| Via heat pump (Mode B) |
kW
|
6.6
|
| Via standard LPHW @ 80°C |
kW
|
30
|
| Via upgraded LPHW @ 55°C |
kW
|
26
|
| Total Mode B + standard LPHW |
kW
|
36.6
|
| Heat to pool water | ||
| Via heat pump (Mode A) |
kW
|
8.0
|
| Via LPHW @ 80°C |
kW
|
33
|
| Via LPHW @ 55°C |
kW
|
16
|
| Total Mode A + LPHW |
kW
|
41.0
|
| Cooling duty | ||
| Total |
kW
|
-5.5
|
| Sensible |
kW
|
-3.9
|
| Nominal power consumed |
kW
|
3.4
|
| R407c gas weight/CO2 equivalent |
kg/t
|
7.8/13.84
|
| Width |
mm
|
1840
|
| Depth |
mm
|
704
|
| Height |
mm
|
1970
|
| Weight |
kg
|
360
|
| Specifications | Units | DT 8 |
|---|---|---|
| Nominal recirculation air flow |
m³/h
|
5,000
|
| Exhaust/fresh air flow (stepped control) |
m³/h
|
250-2,500
|
| Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air |
l/h
|
20.8
|
| Heat to air | ||
| Via heat pump (Mode B) |
kW
|
8.0
|
| Via standard LPHW @ 80°C |
kW
|
35
|
| Via upgraded LPHW @ 55°C |
kW
|
30
|
| Total Mode B + standard LPHW |
kW
|
43.0
|
| Heat to pool water | ||
| Via heat pump (Mode A) |
kW
|
10.0
|
| Via LPHW @ 80°C |
kW
|
33
|
| Via LPHW @ 55°C |
kW
|
16
|
| Total Mode A + LPHW |
kW
|
43.0
|
| Cooling duty | ||
| Total |
kW
|
-6.7
|
| Sensible |
kW
|
-4.7
|
| Nominal power consumed |
kW
|
4.4
|
| R407c gas weight/CO2 equivalent |
kg/t
|
7.8/13.84
|
| Width |
mm
|
1840
|
| Depth |
mm
|
704
|
| Height |
mm
|
1970
|
| Weight |
kg
|
370
|
| Specifications | Units | DT 10 |
|---|---|---|
| Nominal recirculation air flow |
m³/h
|
6,000
|
| Exhaust/fresh air flow (stepped control) |
m³/h
|
300-3,000
|
| Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air |
l/h
|
25.0
|
| Heat to air | ||
| Via heat pump (Mode B) |
kW
|
10.0
|
| Via standard LPHW @ 80°C |
kW
|
38
|
| Via upgraded LPHW @ 55°C |
kW
|
32
|
| Total Mode B + standard LPHW |
kW
|
48.0
|
| Heat to pool water | ||
| Via heat pump (Mode A) |
kW
|
12.5
|
| Via LPHW @ 80°C |
kW
|
40
|
| Via LPHW @ 55°C |
kW
|
20
|
| Total Mode A + LPHW |
kW
|
52.5
|
| Cooling duty | ||
| Total |
kW
|
-8.4
|
| Sensible |
kW
|
-5.9
|
| Nominal power consumed |
kW
|
5.9
|
| R407c gas weight/CO2 equivalent |
kg/t
|
9.0/15.97
|
| Width |
mm
|
1840
|
| Depth |
mm
|
854
|
| Height |
mm
|
1970
|
| Weight |
kg
|
410
|
| Specifications | Units | DT 12 |
|---|---|---|
| Nominal recirculation air flow |
m³/h
|
7,000
|
| Exhaust/fresh air flow (stepped control) |
m³/h
|
350-3,500
|
| Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air |
l/h
|
29.2
|
| Heat to air | ||
| Via heat pump (Mode B) |
kW
|
12.1
|
| Via standard LPHW @ 80°C |
kW
|
42
|
| Via upgraded LPHW @ 55°C |
kW
|
36
|
| Total Mode B + standard LPHW |
kW
|
54.1
|
| Heat to pool water | ||
| Via heat pump (Mode A) |
kW
|
15.0
|
| Via LPHW @ 80°C |
kW
|
40
|
| Via LPHW @ 55°C |
kW
|
20
|
| Total Mode A + LPHW |
kW
|
55.0
|
| Cooling duty | ||
| Total |
kW
|
-10.1
|
| Sensible |
kW
|
-7.1
|
| Nominal power consumed |
kW
|
7.4
|
| R407c gas weight/CO2 equivalent |
kg/t
|
8.0/14.19
|
| Width |
mm
|
1840
|
| Depth |
mm
|
854
|
| Height |
mm
|
1970
|
| Weight |
kg
|
460
|
| Specifications | Units | DT 14 |
|---|---|---|
| Nominal recirculation air flow |
m³/h
|
10,000
|
| Exhaust/fresh air flow (stepped control) |
m³/h
|
670-6,700
|
| Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air |
l/h
|
56.5
|
| Heat to air | ||
| Via heat pump (Mode B) |
kW
|
30.0
|
| Via standard LPHW @ 80°C |
kW
|
85
|
| Via upgraded LPHW @ 55°C |
kW
|
72
|
| Total Mode B + standard LPHW |
kW
|
115.0
|
| Heat to pool water | ||
| Via heat pump (Mode A) |
kW
|
35.0
|
| Via LPHW @ 80°C |
kW
|
65
|
| Via LPHW @ 55°C |
kW
|
32
|
| Total Mode A + LPHW |
kW
|
100.0
|
| Cooling duty | ||
| Total |
kW
|
-23.0
|
| Sensible |
kW
|
-13.0
|
| Nominal power consumed |
kW
|
12.3
|
| R407c gas weight/CO2 equivalent |
kg/t
|
21.5/38.14
|
| Width |
mm
|
2860
|
| Depth |
mm
|
1126
|
| Height |
mm
|
2120
|
| Weight |
kg
|
954
|
| Specifications | Units | DT 16 |
|---|---|---|
| Nominal recirculation air flow |
m³/h
|
12,000
|
| Exhaust/fresh air flow (stepped control) |
m³/h
|
850-8,000
|
| Total dehumidification @ 28°C/60% RH by heat pump and maximum fresh air |
l/h
|
62.4
|
| Heat to air | ||
| Via heat pump (Mode B) |
kW
|
35.0
|
| Via standard LPHW @ 80°C |
kW
|
90
|
| Via upgraded LPHW @ 55°C |
kW
|
77
|
| Total Mode B + standard LPHW |
kW
|
125.0
|
| Heat to pool water | ||
| Via heat pump (Mode A) |
kW
|
43.0
|
| Via LPHW @ 80°C |
kW
|
65
|
| Via LPHW @ 55°C |
kW
|
32
|
| Total Mode A + LPHW |
kW
|
108.0
|
| Cooling duty | ||
| Total |
kW
|
-28.0
|
| Sensible |
kW
|
-15.0
|
| Nominal power consumed |
kW
|
17.0
|
| R407c gas weight/CO2 equivalent |
kg/t
|
21.5/38.14
|
| Width |
mm
|
2860
|
| Depth |
mm
|
1126
|
| Height |
mm
|
2120
|
| Weight |
kg
|
1020
|