About the AD Compact Series
The AD Compact Series brings adsorption dehumidification to installations where the strengths of adsorption technology — sub-zero operation, drying to very low humidity and no need for a drain — must fit in a small package on a standard single-phase socket. Housings are AISI 304 stainless steel: corrosion-resistant, hygienic and durable for cold-storage and restoration environments. Compact dimensions (from 442×292×678 mm on the AD-200 to 578×420×867 mm on the AD-550) allow concealed installation in service ceilings, plant rooms and adjacent spaces. Noise levels — < 45 dB (AD-200), < 50 dB (AD-400) and < 65 dB (AD-550) — keep the units acceptable in occupied and semi-occupied spaces: conservation laboratories, small pharmaceutical rooms, plant rooms.
The three models are ducted by design — the process and regeneration ducts connect to the housing (Ø 80 mm on the AD-200, Ø 100 mm on the AD-400, Ø 125 mm on the AD-550) — so the installation integrates into the room's air-handling scheme rather than standing free. Modbus RTU RS-485 connectivity is standard equipment: an AD Compact unit installed in a heritage archive or a small pharmaceutical laboratory is visible from the facility BMS without additional gateways. The silica-gel rotor is from Proflute — the same rotor manufacturer used across the AD Industrial line, in Compact-class sizes.
Models in the range
DanVex AD-200 0.6 kg/h · 180–200 m³/h process / 60 m³/h regeneration · 1.2 kW / 6 A · 28 kg · < 45 dB · Ø 80 mm
The smallest in the range. For small archives, bank vaults, safes, restoration boxes, conservation laboratories and specialised test cells.
Concealed installation in a service ceiling or plant room; a standard single-phase 16 A socket is sufficient.
DanVex AD-400 2.2 kg/h · 400 m³/h process / 130 m³/h regeneration · 2 kW / 10 A · 35 kg · < 50 dB · Ø 100 mm
The mid-range model. For medium archives, conservation workshops, small pharmaceutical rooms, specialised manufacturing and light cold-storage applications.
Ducted installation with regeneration exhaust to outdoors; a standard single-phase socket.
DanVex AD-550 3 kg/h · 550 m³/h process / 200 m³/h regeneration · 3.8 kW / 20 A · 55 kg · < 65 dB · Ø 125 mm
The top of the Compact range. For larger cold stores, medium-sized restoration projects and larger archives.
Requires a 20 A rated circuit; check the socket rating before installation.
Which model should I choose?
Airflow and capacity drive the choice, not housing size. Below, the parameters side by side and the typical use of each model.
| Criterion | AD-200 | AD-400 | AD-550 |
|---|---|---|---|
| Capacity¹ | 0.6 kg/h | 2.2 kg/h | 3 kg/h |
| Process airflow | 180–200 m³/h | 400 m³/h | 550 m³/h |
| Power / current | 1.2 kW / 6 A | 2 kW / 10 A | 3.8 kW / 20 A |
| Noise level (1 m) | < 45 dB(A) | < 50 dB(A) | < 65 dB(A) |
| Net weight | 28 kg | 35 kg | 55 kg |
| Duct diameter | Ø 80 mm | Ø 100 mm | Ø 125 mm |
| Typical use | Small cold room, laboratory cell | Medium cold room, pharmaceutical room, workshop | Large cold room, restoration workshop |
¹ Capacity measured at 20 °C / 60% RH (the industry-standard test condition for adsorption units). Actual capacity depends on inlet temperature and humidity, airflow and regeneration temperature. For projects with non-standard conditions, contact us — sizing is run in the original Proflute rotor-selection software with full thermodynamic modelling of the process and regeneration streams.
Where is the AD Compact Series used?
Application guide
| Application | Recommended model | Notes |
|---|---|---|
| Cold storage or cold room, target 40–60%, ambient around 0 °C | AD-200 or AD-400 | Single-phase installation above the cold-store entrance or in an adjacent service room; regeneration duct routed outdoors |
| Heritage building restoration at variable ambient temperature, target ≤ 40% RH | AD-400 or AD-550 | Regeneration duct outdoors via a window adapter or service penetration |
| Small pharmaceutical room or cleanroom annex, low RH target, BMS integration required | AD-400 or AD-550 | Modbus RTU RS-485 connectivity standard; G3 filter ahead of the rotor |
| Specialised manufacturing — electronics, precision optics, low-humidity assembly cell | AD-400 or AD-550 | Verify capacity at the actual inlet temperature and target — sizing in the Proflute software |
| Water-damage restoration in unheated buildings at sub-zero ambient | AD-550 | The largest Compact capacity; adsorption works where mobile condensation units (e.g. DEH-i) stop below +5 °C |
How does AD Compact compare with the market?
Against budget adsorption units, the AD Compact differs in rotor source, fan architecture and housing quality — the differences that determine capacity stability and service life.
| Feature | DanVex AD Compact | Budget adsorption |
|---|---|---|
| Rotor manufacturer | ✓ Proflute | ✗ unnamed OEM |
| Two-fan design | ✓ independent process and regeneration fans | ✗ single fan; room under negative pressure |
| Installation outside the dried room | ✓ yes — ducted to the space | ~ single-fan units sit inside the room |
| Housing | ✓ AISI 304 stainless steel | ~ painted steel |
| Minimum operating temperature | ✓ −20 °C | ✓ −20 °C |
| Target humidity | ✓ down to 1% RH | ✓ down to 1% RH |
Key technologies — at a glance
Proflute silica-gel rotor
The rotor is from Proflute — one of the two leading European manufacturers of adsorption rotors. Stable performance at design conditions, a predictable adsorption curve and a 5–8-year life in non-corrosive service with regeneration below 140 °C. Every project is sized in the original Proflute software.
Two-fan design
Independent process and regeneration fans. Regeneration air is drawn from outdoors, and the dried room stays at neutral pressure — no untreated outdoor air pulled in, and no erosion of actual drying capacity as in single-fan configurations.
AISI 304 stainless-steel housing
Corrosion-resistant, hygienic and durable enough for cold-storage and restoration environments. Acceptable in installations near food and pharmaceuticals without additional coating. Keeps its appearance and structural integrity through years of continuous service.
IP44 protection
Splash protection from all directions. The housing is rated for installations with periodic wash-down or condensation exposure (cold-store entrances, food-handling areas). Class I electrical protection of the internal assemblies; external protection — to local codes and by a qualified electrician.
G3 air filter (EN 779:2012)
A coarse-particle filter on the process inlet protects the rotor from dust accumulation and extends its life. The G3 class under EN 779:2012 corresponds to the old EU3 class — older datasheets and EU3-marked filters remain compatible.
Modbus RTU RS-485
BMS integration is standard, not an option. The unit appears on the facility BMS or SCADA as a Modbus slave — humidity set-point, current readings, alarm status and run-hour counters, all over RS-485 without a protocol gateway.
Technical specifications — AD Compact Series
| Parameter | AD-200 | AD-400 | AD-550 |
|---|---|---|---|
| Capacity¹ | 0.6 kg/h | 2.2 kg/h | 3 kg/h |
| Process airflow | 180–200 m³/h | 400 m³/h | 550 m³/h |
| Process static pressure | 70 Pa | 100 Pa | 100 Pa |
| Regeneration airflow | 60 m³/h | 130 m³/h | 200 m³/h |
| Regeneration static pressure | 50 Pa | 50 Pa | 50 Pa |
| Total power | 1.2 kW | 2 kW | 3.8 kW |
| Current | 6 A | 10 A | 20 A |
| Process duct (inlet/outlet) | Ø 80 mm | Ø 100 mm | Ø 125 mm |
| Regeneration duct | Ø 80 mm | Ø 100 mm | Ø 125 mm |
| Dimensions (L×W×H) | 442×292×678 mm | 680×425×400 mm | 578×420×867 mm |
| Net weight | 28 kg | 35 kg | 55 kg |
| Noise level (1 m) | < 45 dB(A) | < 50 dB(A) | < 65 dB(A) |
| Operating temperature | −20…+40 °C | ||
| Operating humidity range | 1–100% RH | ||
| Voltage / frequency | 220–230 V / 50–60 Hz · single-phase | ||
| Air filter class | G3 (EN 779:2012) | ||
| Protection | IP44 | ||
| Housing | AISI 304 | ||
| Control | Digital controller + Modbus RTU RS-485 | ||
| Sensor | External humidity sensor (included) | ||