Trotec DH 120 Industrial Dehumidifier, up to 176.3 L/24 h
The Trotec DH 120 is a high-performance stationary condensation dehumidifier designed for swimming pools, spas, laundry rooms, and commercial and industrial buildings. The unit removes up to 176.3 liters of moisture from the air per day and delivers an airflow of up to 1,463 m³/h. Its high dehumidification capacity helps reduce the risk of condensation, mold, corrosion, and moisture-related damage to structures and equipment.
A sturdy aluminum housing and corrosion-protected heat exchangers make the DH 120 suitable for long-term use even in environments with high humidity loads. An electronic hygrostat allows you to set the desired relative humidity, and the unit automatically adjusts its operation accordingly.
The Trotec DH 120 continuously drains any condensate that forms, so the unit does not require regular emptying of the water tank. This model is suitable for stationary installation and round-the-clock humidity control.
Two fan operating modes
The device has two fan operating modes:
- Comfort mode is suitable for maintaining normal humidity levels and quieter operation;
- Boost mode provides greater airflow and more intensive dehumidification when humidity levels are high.
You can select the operating mode based on the room’s intended use, noise level requirements, and actual humidity load.
Built-in hydronic radiator
The Trotec DH 120 is equipped with a factory-installed PWW water-heating radiator designed to operate with heating water up to 55 °C. The heat exchanger allows the dehumidifier to be connected to the building’s heating system and to supply additional heat to the room.
Connecting the dehumidifier to the heating system is particularly useful in swimming pools and other rooms with high evaporation loads, where a stable indoor temperature must be maintained in addition to moisture removal.
Key Benefits
- maximum dehumidification capacity up to 176.3 L/24 h;
- maximum airflow up to 1,463 m³/h;
- Suitable for swimming pools as well as commercial and industrial spaces;
- Comfort and Boost operating modes;
- precise electronic hygrostat;
- Continuous direct condensate drainage;
- Sturdy, corrosion-resistant aluminum housing;
- corrosion-protected heat exchangers;
- factory-installed PWW hydronic radiator;
- user-friendly control panel;
- Suitable for continuous, stationary use;
- a reliable, professional solution.
Technical Specifications
| Specification | Trotec DH 120 |
|---|---|
| Maximum drying capacity | up to 176.3 L/24 h |
| Drying capacity at 35 °C / 80% RH | 164.3 L/24 h |
| Drying capacity at 30 °C / 60% RH | 92.5 L/24 h |
| Drying capacity at 20 °C / 60% RH | 66 l/24 h |
| Maximum airflow | up to 1,463 m³/h |
| Rated airflow of the fan in Comfort/Boost mode | 800/1200 m³/h |
| Operating Temperature | 5–40 °C |
| Relative humidity operating range | 40–95% RH |
| Noise level at a distance of 1 meter | 51/56 dB(A) |
| Electrical Connection | single-phase |
| Rated power | 2.6 kW |
| Rated current | 11.7 A |
| Condensate Removal | Continuous direct drain |
| Refrigerant | R454C |
| Refrigerant quantity | 1.6 kg |
| Dimensions | 1410 × 365 × 860 mm |
| Weight | 130 kg |
| Product Code | 1125000140 |
The dehumidification capacity depends on the room temperature and relative humidity. The warmer and more humid the air, the greater the unit’s condensation capacity.
Applications
The Trotec DH 120 is particularly suitable for:
- indoor pools and spa centers;
- water parks and sauna complexes;
- changing rooms and shower rooms;
- laundry rooms and drying rooms;
- manufacturing and warehouse facilities;
- the food industry;
- technical rooms with high humidity levels;
- museums, archives, and storage facilities;
- commercial spaces requiring constant humidity control.
Why Use an Industrial Dehumidifier?
Uncontrolled humidity can cause condensation to form on windows, walls, and metal surfaces. Over time, this increases the risk of mold, corrosion, unpleasant odors, and damage to building materials. In pool areas, excessive humidity can also strain the ventilation system and damage the building’s structure.
The Trotec DH 120 removes excess water vapor directly from the air and maintains the desired humidity level using an electronic hygrostat. This helps protect buildings, equipment, and stored materials, and improves comfort in the room.
Selecting and Installing the Trotec DH 120
When selecting a suitable dehumidifier, you must consider the room’s volume, temperature, existing ventilation, desired humidity level, and the amount of moisture generated in the room. For a swimming pool, the required dehumidification capacity is also influenced by the size of the water surface, the water temperature, the room temperature, and the frequency of pool use.
Pro Air OÜ helps calculate a facility’s moisture load, select an industrial dehumidifier with the appropriate capacity, and plan for condensate drainage and connection to the heating system.
Check out our other industrial and commercial dehumidifiers as well.
Frequently Asked Questions
Is the Trotec DH 120 suitable for a pool area?
Yes. The DH 120 is specifically designed for drying swimming pools, spas, and commercial and industrial spaces with high humidity levels. The aluminum housing and protected heat exchangers increase the unit’s durability in humid environments.
How much moisture does the Trotec DH 120 remove?
The maximum drying capacity specified by the manufacturer is up to 176.3 liters per day. Actual performance depends on the air temperature and relative humidity. For example, at a temperature of 20 °C and 60% RH, the capacity is 66 l/24 h.
Does the device have a water tank?
No. The condensate is drained directly. This allows the unit to be used continuously without having to empty the water tank.
Can the DH 120 be connected to a heating system?
Yes. The unit is factory-equipped with a PWW water-heating radiator designed for use with heating water up to 55 °C.
Is the DH 120 suitable for continuous operation?
Yes. This is a professional, stationary dehumidifier designed for continuous humidity control in commercial and industrial settings.


