Calorex Variheat series – ducted swimming pool and commercial dehumidifiers
AA/AW 600-900-1200-1500
The Variheat range are sophisticated air handling units incorporating heat pump dehumidification technology. With dynamic heat recovery using a heat pump, the Variheat is the essential choice for a small or medium sized indoor swimming pool as well as commercial use.
With a wide operating range from 35% RH to 100% RH, in air temperatures from 3°C to 35°C, the Variheat air handling unit is the optimum commercial dehumidifier for the majority of humidity control applications. Over 3000 configurations offer the ultimate flexibility for tight plant room spaces. The sophisticated controls, with integral PLC and touchscreen user interface, are ideal for integration with a wide variety of building management systems.
View other swimming pool dehumidifiers or see our full range of commercial and industrial dehumidifiers suitable for multiple applications.
Calorex Variheat AA/AW 600-900-1200-1500 – ducted swimming pool and commercial dehumidifiers
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Calorex Variheat AW 1200 vertical configuration
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Calorex Variheat horizontal configuration
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Calorex Variheat horizontal side filter
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Calorex Variheat touchscreen controls
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Calorex Variheat home screen
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Calorex Variheat home screen plus
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Key features
- Dynamic heat pump heat recovery
- Constant flow EC fan (models 600, 900, 1200)
- Speed controllable EC fan (model 1500)
- PLC control with 3.5" touchscreen user interface
- Remote monitoring/control
- AA+LPHW models add: Integral LPHW heat exchanger for air heating
- AW models add: Integral LPHW heat exchangers for pool and air
- The minimum security update period for Variheat products is zero months
Options
- Fresh air module
- Upgraded LPHW heat exchanger for air
- Electric resistance air heaters (6/12/18kW)
- Air cooling with remote condenser (AA 600, 900 models only)
Electrical heater option notes
- In lieu of LPHW heat exchangers
- 6kW or 12kW is available for 600 and 900 models
- 12kW or 18kW is available for 1200 and 1500 models
The Variheat range are sophisticated air handling units incorporating heat pump dehumidification technology. With dynamic heat recovery using a heat pump, the Variheat is the essential choice for a domestic or light commercial indoor swimming pool. Over 3000 configurations offer the ultimate flexibility for tight plant room spaces. This range is purposely designed for swimming pool climate control, providing the necessary comfort, moisture related structural protection and economical operation.
Product specifications
| Specifications | Units | AW 600 |
|---|---|---|
| Air flow | m³/h | 2,000 |
| External available static pressure | Pa | 330 |
| Fresh air flow (option) | m³/h | 0-900 |
| External available static pressure | Pa | 100 |
| Dehumidification @ 30°C/60% RH | l/h | 4.6 |
| Dehumidification @ 30°C/70% RH | l/h | 5.5 |
| Heat to air | ||
| Net via heat pump (Mode B) | kW | 5.1 |
| Via standard LPHW @ 80°C | kW | 11.0 |
| Max. available (Mode B + standard LPHW) | kW | 14.0 |
| Via upgraded LPHW @ 55°C | kW | 9.4 |
| Max. available (Mode B + upgraded LPHW) | kW | 12.7 |
| Heat to water | ||
| Net via heat pump (Mode A) | kW | 5.5 |
| Via LPHW @ 80°C | kW | 18.0 |
| Max. available (Mode A + LPHW) | kW | 23.5 |
| Refrigerant | R454C | |
| Gas weight/CO2 equivalent | kg/t | 1.8/0.26 |
| Nominal power consumed | kW | 2.1 |
| Product size | For sizing options please contact dealer | |
| Abbrieviations | AW denotes heat recovery to air/water and LPHW heaters for air/water | |
| Specifications | Units | AA 600 |
|---|---|---|
| Air flow | m³/h | 2,000 |
| External available static pressure | Pa | 330 |
| Fresh air flow (option) | m³/h | 0-900 |
| External available static pressure | Pa | 100 |
| Dehumidification @ 30°C/60% RH | l/h | 4.6 |
| Dehumidification @ 30°C/70% RH | l/h | 5.5 |
| Heat to air | ||
| Net via heat pump (Mode B) | kW | 5.1 |
| Via standard LPHW @ 80°C | kW | 11.0 |
| Max. available (Mode B + standard LPHW) | kW | 14.0 |
| Via upgraded LPHW @ 55°C | kW | 9.4 |
| Max. available (Mode B + upgraded LPHW) | kW | 12.7 |
| Heat to water | ||
| Net via heat pump (Mode A) | kW | 0 |
| Via LPHW @ 80°C | kW | 0 |
| Max. available (Mode A + LPHW) | kW | 0 |
| Refrigerant | R454C | |
| Gas weight/CO2 equivalent | kg/t | 1.8/0.26 |
| Nominal power consumed | kW | 2.1 |
| Product size | For sizing options please contact dealer | |
| Abbrieviations | AA denotes heat recovery to air and optional LPHW heater for air only | |
| Specifications | Units | AW 900 |
|---|---|---|
| Air flow | m³/h | 2,500 |
| External available static pressure | Pa | 220 |
| Fresh air flow (option) | m³/h | 0-900 |
| External available static pressure | Pa | 100 |
| Dehumidification @ 30°C/60% RH | l/h | 6.5 |
| Dehumidification @ 30°C/70% RH | l/h | 7.8 |
| Heat to air | ||
| Net via heat pump (Mode B) | kW | 7.1 |
| Via standard LPHW @ 80°C | kW | 13.5 |
| Max. available (Mode B + standard LPHW) | kW | 18.6 |
| Via upgraded LPHW @ 55°C | kW | 11.5 |
| Max. available (Mode B + upgraded LPHW) | kW | 16.9 |
| Heat to water | ||
| Net via heat pump (Mode A) | kW | 7.4 |
| Via LPHW @ 80°C | kW | 30.0 |
| Max. available (Mode A + LPHW) | kW | 37.4 |
| Refrigerant | R454C | |
| Gas weight/CO2 equivalent | kg/t | 2.0/0.29 |
| Nominal power consumed | kW | 2.8 |
| Product size | For sizing options please contact dealer | |
| Abbrieviations | AW denotes heat recovery to air/water and LPHW heaters for air/water | |
| Specifications | Units | AA 900 |
|---|---|---|
| Air flow | m³/h | 2,500 |
| External available static pressure | Pa | 220 |
| Fresh air flow (option) | m³/h | 0-900 |
| External available static pressure | Pa | 100 |
| Dehumidification @ 30°C/60% RH | l/h | 6.5 |
| Dehumidification @ 30°C/70% RH | l/h | 7.8 |
| Heat to air | ||
| Net via heat pump (Mode B) | kW | 7.1 |
| Via standard LPHW @ 80°C | kW | 13.5 |
| Max. available (Mode B + standard LPHW) | kW | 18.6 |
| Via upgraded LPHW @ 55°C | kW | 11.5 |
| Max. available (Mode B + upgraded LPHW) | kW | 16.9 |
| Heat to water | ||
| Net via heat pump (Mode A) | kW | 7.4 |
| Via LPHW @ 80°C | kW | 30.0 |
| Max. available (Mode A + LPHW) | kW | 37.4 |
| Refrigerant | R454C | |
| Gas weight/CO2 equivalent | kg/t | 1.85/0.27 |
| Nominal power consumed | kW | 2.8 |
| Product size | For sizing options please contact dealer | |
| Abbrieviations | AA denotes heat recovery to air and optional LPHW heater for air only | |
| Specifications | Units | AW 1200 |
|---|---|---|
| Air flow | m³/h | 3,500 |
| External available static pressure | Pa | 290 |
| Fresh air flow (option) | m³/h | 0-900 |
| External available static pressure | Pa | 100 |
| Dehumidification @ 30°C/60% RH | l/h | 8.5 |
| Dehumidification @ 30°C/70% RH | l/h | 10.8 |
| Heat to air | ||
| Net via heat pump (Mode B) | kW | 10.0 |
| Via standard LPHW @ 80°C | kW | 24.0 |
| Max. available (Mode B + standard LPHW) | kW | 30.0 |
| Via upgraded LPHW @ 55°C | kW | 20.4 |
| Max. available (Mode B + upgraded LPHW) | kW | 27.0 |
| Heat to water | ||
| Net via heat pump (Mode A) | kW | 10.0 |
| Via LPHW @ 80°C | kW | 30.0 |
| Max. available (Mode A + LPHW) | kW | 40.0 |
| Refrigerant | R407C | |
| Gas weight/CO2 equivalent | kg/t | 2.85/5.06 |
| Nominal power consumed | kW | 3.6 |
| Product size | For sizing options please contact dealer | |
| Abbrieviations | AW denotes heat recovery to air/water and LPHW heaters for air/water | |
| Specifications | Units | AA 1200 |
|---|---|---|
| Air flow | m³/h | 3,500 |
| External available static pressure | Pa | 290 |
| Fresh air flow (option) | m³/h | 0-900 |
| External available static pressure | Pa | 100 |
| Dehumidification @ 30°C/60% RH | l/h | 8.5 |
| Dehumidification @ 30°C/70% RH | l/h | 10.8 |
| Heat to air | ||
| Net via heat pump (Mode B) | kW | 10.0 |
| Via standard LPHW @ 80°C | kW | 24.0 |
| Max. available (Mode B + standard LPHW) | kW | 30.0 |
| Via upgraded LPHW @ 55°C | kW | 20.4 |
| Max. available (Mode B + upgraded LPHW) | kW | 27.0 |
| Heat to water | ||
| Net via heat pump (Mode A) | kW | 0 |
| Via LPHW @ 80°C | kW | 0 |
| Max. available (Mode A + LPHW) | kW | 0 |
| Refrigerant | R407C | |
| Gas weight/CO2 equivalent | kg/t | 2.7/4.79 |
| Nominal power consumed | kW | 3.6 |
| Product size | For sizing options please contact dealer | |
| Abbrieviations | AA denotes heat recovery to air and optional LPHW heater for air only | |
| Specifications | Units | AW 1500 |
|---|---|---|
| Air flow | m³/h | 4,300 |
| External available static pressure | Pa | 350 |
| Fresh air flow (option) | m³/h | 0-900 |
| External available static pressure | Pa | 100 |
| Dehumidification @ 30°C/60% RH | l/h | 10.5 |
| Dehumidification @ 30°C/70% RH | l/h | 13.2 |
| Heat to air | ||
| Net via heat pump (Mode B) | kW | 14.0 |
| Via standard LPHW @ 80°C | kW | 28.0 |
| Max. available (Mode B + standard LPHW) | kW | 36.0 |
| Via upgraded LPHW @ 55°C | kW | 23.8 |
| Max. available (Mode B + upgraded LPHW) | kW | 36.8 |
| Heat to water | ||
| Net via heat pump (Mode A) | kW | 12.5 |
| Via LPHW @ 80°C | kW | 40.0 |
| Max. available (Mode A + LPHW) | kW | 52.5 |
| Refrigerant | R407C | |
| Gas weight/CO2 equivalent | kg/t | 3.0/5.32 |
| Nominal power consumed | kW | 4.7 |
| Product size | For sizing options please contact dealer | |
| Abbrieviations | AW denotes heat recovery to air/water and LPHW heaters for air/water | |
| Specifications | Units | AA 1500 |
|---|---|---|
| Air flow | m³/h | 4,300 |
| External available static pressure | Pa | 350 |
| Fresh air flow (option) | m³/h | 0-900 |
| External available static pressure | Pa | 100 |
| Dehumidification @ 30°C/60% RH | l/h | 10.5 |
| Dehumidification @ 30°C/70% RH | l/h | 13.2 |
| Heat to air | ||
| Net via heat pump (Mode B) | kW | 14.0 |
| Via standard LPHW @ 80°C | kW | 28.0 |
| Max. available (Mode B + standard LPHW) | kW | 36.0 |
| Via upgraded LPHW @ 55°C | kW | 23.8 |
| Max. available (Mode B + upgraded LPHW) | kW | 36.8 |
| Heat to water | ||
| Net via heat pump (Mode A) | kW | 0 |
| Via LPHW @ 80°C | kW | 0 |
| Max. available (Mode A + LPHW) | kW | 0 |
| Refrigerant | R407C | |
| Gas weight/CO2 equivalent | kg/t | 2.65/4.70 |
| Nominal power consumed | kW | 4.7 |
| Product size | For sizing options please contact dealer | |
| Abbrieviations | AA denotes heat recovery to air and optional LPHW heater for air only | |
Suitable for:
- Data centers and telecoms
- Leisure and recreation
- Swimming pools