Industrial desiccant dehumidifier TTR 3700
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Industrial desiccant dehumidifier TTR 3700

The stationary desiccant dehumidifier TTR 3700 impresses with a dehumidification performance of 492 kg / 24 h

Control cabinet integrated behind control panel
Optionally also available are special models, e.g. with control cabinet cooling
TTR 3700 with robust stainless steel housing

Humidity control at its best

Even 500 kilogrammes of dehumidification performance per day present no challenge for the TTR 3700 – not even in cold ambient conditions with low dew points. Therefore, the industrial desiccant dehumidifier is ideally suited for the most diverse air and gas dehumidification tasks in industrial, haulage or utility companies, for instance to secure products and production, for the value retention of machines, inventory and buildings through constant protection against corrosion, condensation or mould formation.

With the standard stainless steel housing and an electrical control box with protection type IP44 the corrosion-proof TTR 3700 withstands even the harshest of environmental conditions and is therefore ideally suited for all applications related to dry keeping or the production of dry air at low temperatures or under particularly material-straining conditions – also in hygiene-sensitive areas.

High Performance made in Germany

It is no coincidence that with the TTR 3700 you benefit from an equally durable and easy-to-service construction – after all it is a desiccant dehumidifier originally produced by Trotec, developed and manufactured in Germany according to the highest quality standards, which houses only efficient branded components of the latest generation of technology supplied by leading component manufacturers.

High dry air flow rate even with a low dew point

For the purpose of dehumidification the desiccant dehumidifiers of the TTR series take advantage of the vapour pressure gradient between the humid air and a hygroscopic sorption agent incorporated in a desiccant wheel with an extremely large surface structure. This procedure ensures a high dehumidification performance even at a low humidity level and low air temperatures.

TTR Trisorp Dual principle

The TTR 3700 is provided with two separate air flow ducts for process and regeneration air with one fan each. The process air to be dehumidified is sucked in by a fan and flows through the dehumidification sector of the continuously rotating desiccant wheel. There the contained moisture is withdrawn by the sorbent and in the further course the dried air flows towards the air outlet.

The regeneration air is also sucked in by a separate fan and guided through the purging sector. Seeing as the desiccant wheel heats up due to the released desiccation heat and the regeneration heat, the purging sector serves for heat recovery and for cooling the desiccant wheel. This leads to a reduced energy input and an improved dehumidification performance alike – especially at lower dew points.

Whilst flowing through the heater battery the air is heated up substantially, in the course of this the relative humidity is extremely reduced. As a result, the air passing through the regeneration sector again absorbs the moisture retained by the silica gel and can then be discharged to the outside as extremely humid regeneration air through the humid air outlet.

The TTR 3700 operates according to the TTR Trisorp Dual principle of operation with separate air flows of process and regeneration air implemented by one fan each as well as a respective purging sector for the heat recycling process of the incoming regeneration air.
TTR Trisorp Dual

Configurable air direction reversal

Configurable air direction reversal

Ex factory, the dehumidifier housing already comes prepared for mirror-inverted assembly of the air flow ducts so that the device can always be positioned with the operator side facing the user – regardless of the process air flow direction. If desired, you also have the option of adjusting the air flow direction to your individual processes as needed by means of a modular conversion. Blowing out dry air to the right and discharging humid air to the left – or the other way round – not a problem thanks to the configurable air direction reversal.

Duoventic air volume regulation

Duoventic air volume regulation

The high-performance fans of the TTR 3700 are driven by energy-saving EC motors – their speed can be adjusted independently by means of a Duoventic regulator. Owing to this integrated Duoventic air volume regulation the industrial desiccant dehumidifier TTR 3700 can be configured quickly and in line with demand without the need for conversions: Extremely dry air with a low air flow rate, larger volumes of dry air or maximum circulating air performance with a moderate ratio of dry air.

Service-friendly design

Service-friendly design

The TTR 3700 has an extremely maintenance-friendly design. Lockable doors and filter flaps permit quick access to all elements at any time. Ex factory, the device comes equipped with separate G4 air filters in Z-line design, both for process and regeneration air. A corresponding filter monitoring unit with warning light is also fitted as standard.

Also available as hiring model

Also available as hiring model

As additional equipment option this industrial desiccant dehumidifier is also available as hiring model. Accommodated in a galvanized, stackable transport frame providing shock protection, the TTR 3700 comes equipped with lockable swivel castors at the front and trestle rollers at the rear.


Example set-up 1: Pressure-neutral circulating air drying when installed outside of the room to be treated with dry air.
Pressure-neutral recirculation operation when installed outdoors

Power-saving dehumidification and higher drying rates thanks to circulatory air operation with dual air circuits

With two separate air flows the TTR Trisorp Dual principle permits the recirculation operation using dry air from a separate process air circuit both when installing the device within (example 2) or outside of the room to be treated (example 1). In case of indoor installation the connected hose or pipe lines for the incoming regeneration air and the outgoing humid air are simply leading outside the room.

In contrast to the conventional ventilation mode, variable circulating air drying can achieve substantially lower dew point temperatures with a nominal dry air volume – resulting in significantly lower drying stages and a considerably more energy-efficient operation.

Example set-up 2: Pressure-neutral circulating air drying when installed within the room to be treated with dry air.
Pressure-neutral recirculation operation when installed indoors

An ideal desiccant dehumidifier for various applications: Trotec's TTR 3700

Diverse application possibilities

Owing to its high dehumidification performance during continuous operation – even at low dew points – the industrial desiccant dehumidifier TTR 3700 is suited for manifold fields of application:

Additional benefits without an additional charge

As standard, the dehumidifier TTR 3700 comes equipped with numerous functions and features guaranteeing reliable operation, easy handling and long lifetime with low maintenance effort.

  • Robust and maintenance-friendly stainless steel housing
  • Rotor rotation control (rotor and drive)
  • Duoventic control respectively for process air and regeneration air fans
  • Overtemperature protection system with restart lock (regeneration air)
  • Operating temperature management (regeneration air)
  • G4 air filters in Z-line design with electronic monitoring and collective warning light
  • External on/off terminals and hygrostat terminals
  • Potential-free contacts for operation, fault and filter
  • Configurable air direction reversal

Thanks to manifold equipment options the TTR 3700 can moreover be equipped precisely to meet your individual needs.

Performance chart of the TTR 3700
Upon request, we also produce customized desiccant dehumidifiers as special models

Upon request, we will readily produce tailor-made desiccant dehumidifiers as special models “made in Germany” perfectly geared to your needs, e.g.:

  • TTR industrial desiccant dehumidifiers with hygienic design
  • TTR industrial desiccant dehumidifiers for PWIS-free dry air
  • TTR industrial desiccant dehumidifiers with extremely low dew point

Makes use of the possibility of having special models with tailored components for your individual needs planned, designed and manufactured in close consultation with our specialists.
Click here to find out more ...

Straight to the right humidity load without load

Requirement calculation made easy – to the Trotec online capacity calculator

Which is the desiccant dehumidifier with the perfect capacity to suit your task

Save yourself the time-consuming calculation of requirements in the conventional way and use our professional online capacity calculator for an exact determination of your TTR unit’s requirement. Just select the desired type of dehumidification, complete the parameters queried, and our calculator will tell you the exact humidity load value for your requirement including a recommendation for your optimum Trotec dehumidifier.

Directly to the online capacity calculator

TROTEC CASE STUDY: Reliable air dehumidification against condensation with MareDeus

TROTEC CASE STUDY:
Reliable air dehumidification against condensation with MareDeus

The Spanish company "MareDeus Food Solutions" relies on the TTR adsorption drying units from Trotec for its cod production. Fog formation and moisture after cleaning work are a thing of the past.

To the PDF document

Technical data in comparison

All stationary adsorption dehumidifiers of the TTR series in direct comparison:

In order to find exactly the right adsorption dehumidifier for your needs, you have the possibility to compare all devices of the Trotec TTR series clearly.

Models that you do not want to include in the comparison can simply be clicked away.

Technical data in comparison

A few practical benefits:

  • Professional quality “made in Germany” – originally produced by Trotec
  • High dehumidification performance even with low dew points
  • Robust stainless steel housing
  • Reliable silica gel sorption rotor
  • Configurable air direction reversal (conversion requires minimal effort)
  • Duoventic control – the performance of each fan can be set individually via a potentiometer
  • TTR Trisorp Dual principle with separate air flow ducts for process and regeneration air for pressure-neutral recirculation operation
  • Electric regeneration heating
  • Filter monitoring (per air current and collective warning light)
  • Can be configured individually for any application due to a wide range of equipment options

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Technical data

Technical data
General information
  Article number 1.110.000.177
Dry air (in case of intake air 20°C / 60 % RH)
  Dehumidification [kg/24h] 492
  Dehumidification [kg/h] 20.5
  Air volume free-blowing [m³/h] 4,300
  Nominal air volume [m³/h] 3,700
  External compression [Pa] 400
  Connection inlet Ø [mm] 315
  Connection outlet Ø [mm] 315
Regeneration air
  Nominal air volume [m³/h] 740
  External compression [Pa] 200
  Connection inlet Ø [mm] 200
  Connection outlet Ø [mm] 200
Operating principle
  Operating principle TTR Trisorp Dual
Operating range
  Min. temperature [°C] -20
  Max. temperature [°C] 40
  Min. humidity [% RH] 0
  Max. humidity [% RH (non-condensing)] 100
Electrical values
  Mains connection 380 - 480 V/50 - 60 Hz
  Nominal current consumption [A] 42.8
  Installed capacity [kW] 28.8
  Heating capacity [kW] 24.5
  Recommended fusing [A] 63
Electric connection
  Terminal connection
Automatic dehumidification
  Non-stop dehumidification
Dimensions
  Length (packaging excluded) [mm] 1,348
  Width (packaging excluded) [mm] 769
  Height (packaging excluded) [mm] 1,323
Weight
  (packaging excluded) [kg] 270
Equipment, features and functions
Housing type
  Stainless steel
  Steel housing, galvanized and painted
  Plastics
  Metal plastic composite housing
  Metal
  Powder coating
  Coating
Device version
  Indoor installation (standard)
  Hiring model
  stackable
  Shelter against the weather
Equipment
  Wide-range voltage
  Rotor rotation control (rotor and drive)
  Overtemperature protection system with restart lock (regeneration air)
  Operating temperature management (regeneration air)
  Filter monitoring (per air current and collective warning light)
  Duoventic control
  Configurable air direction reversal (conversion requires minimal effort)
  Terminals for external ON/OFF
  Terminals hygrostat
  Potential-free contacts (operation, fault, filter)
  Operating hours counter
  Air volume regulation
  Integrated heat recovery
  Hygrostat (electronic)
  Hygrostat (mechanical)
  Moisture control
  Moisture and temperature registration
  Sensor-supported Flowmatic control
  Power meter
  Ammeter
  DIN socket for external ON/OFF
Regeneration heating design
  Electric resistance
  Electric PTC
  Gas
  Saturated vapour (4 bar)
Air pre- and post-treatment
  Pre-cooling
  After-cooling
Mobility
  Carry/transport handle(s)
  Non-marking rubber wheels
  Stacking device
  Non-marking rubber feet
  Transport frame
  Swivel casters with brake
  Trestle rollers/ fixed castors
  Crane lifting gear
  Forklift pockets

 standard equipment

 optionally available

 not available

Accessories

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