OMRON ZN-A2502D ZN-A4105D ZN-A6112 ZN-A6112P ​Air Clean Units

Air outlet dimension

225 × 205 mm

360 × 360 mm

578 × 568 mm

Main filter/ 
Removal rate

HEPA filter/ 99.99% of particles 0.3- μm and larger

Air volume (m³/min)

0.3 to 1.8 m³/min 
(typical)

1.0 to 5.0 m³/min 
(typical)

4 to 12 m³/min (typical)

Power supply 
voltage

24 VDC ± 10%, Ripple (p-p): 10% max.

Current 
consumption

Airflow level 5: 
2.1 A max. (RMS value)
(Peak: 3 A)

Airflow level 5: 
3.5 A max. (RMS value)
(Peak: 5.5 A)

Airflow level 5: 
24 VDC: 4.3 A max. (RMS value) (Peak: 8 A)

Airflow levels

5 levels 
Settable by button operation 
Settable by serial (RS-422 or RS-485 *1) 
communications

5 levels 
Settable by button operation 
Settable by serial (RS-422 or RS-485 *1) 
communications 
Settable by ON/OFF signal input (3 levels) *2

Running noise

Airflow level 3: 53 dB (typical)

Airflow level 3: 53 dB (typical)

Fan motor

Compact DC brushless 
centrifugal blower x 2

DC brushless turbo 
fan x 1

DC brushless turbo fan x 1

Indicators

Operating status: Green/Red 
Air volume: Blue

Filter clogging 
detection

Yes

No

Yes

External output

Alarm output 1: 
Alarm output 1 turns OFF when one of the 
following events occurs. 
(Normally alarm output 1 is ON.) 
(Check indicator to find out which event 
occurred.) 
Filter is clogged. 
Fan error 
Cleaning alarm for discharge needle (when ZN- 
J-series Ionizer (sold separately) is connected) 
Discharge error (when ZN-J-series Ionizer 
(sold separately) is connected) 
Alarm output 2: 
Enabled only when ZN-J-series Ionizer (sold 
separately) is connected. 
Alarm output 2 turns OFF to indicate that 
cleaning is necessary for ZN-J Series 
discharge needles. 
(Normally alarm output 2 is ON.)

Fan operation alarm output 
Alarm output OFF in below cases (ON during 
normal operation) 
Fan not rotating (Including when power is 
OFF or on standby) 
Trouble 
Clogged filter (ZN-A6112P only)

30 VDC, 50 mA max. 
Residual voltage: 1 V max. with load current of 10 mA, 2 V max. with load current of 50 mA.

Applicable Ionizer 
Unit (Optional)

ZN-J25A

ZN-J41A

None

Ambient 
temperature range

Operating and storage: 0 to 40 °C (with no icing or condensation)

Ambient humidity 
range

Operating and storage: 35% to 85% (with no condensation)

Applicable 
contamination 
degree

Pollution degree 2

Material

Top: Antistatic plastic, bottom: SECC

Top: ABS resin, HEPA filter frame: aluminum

Dimensions (mm)

250 × 250 × 97.5 
mm (W × D × H)

410 × 410 × 129.5 
mm (W × D × H)

714.4 × 654.4 × 174.3 mm (W × D × H) 
(Height from attachment surface: 117.3)

Weight (Packaged)

Approx. 2 kg 
(Approx. 3.3 kg)

Approx. 5.2 kg 
(Approx. 8.6 kg)

Approx. 12.5 kg (Approx. 17 kg)

Accessories

Instruction Sheet, Sealing parts, 
Mounting screws, 
I/O connector (XW4B-06B1-H1)

Instruction Sheet, Sealing parts, 
Mounting screws, 
I/O connector (XW4B-10B1-H1)