Series-EPW

PWM to Pneumatic Output for 20 to 25 psig Air Supply Pressure

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Converts PWM to pneumatic control: EPW Series modules convert pulse or digital PWM signals into proportional pneumatic output from 0 to 20 psig.
Flexible pressure ranges: Jumper-selectable outputs support 0-10 psig, 0-15 psig, and 0-20 psig, with field calibration available for matching actuator requirements.
Ideal for HVAC pneumatic applications: Designed for 3-way mixing valves, chiller loading, pilot positioners, pneumatic valve and damper actuators, fan vane control, DDC control, VAV boxes, and above-ceiling applications.
Direct or reverse acting options: Available models support standard direct-acting control or reverse-acting operation for applications requiring opposite pressure response.
Built-in pressure feedback: A 0-5 VDC feedback signal provides branch line pressure visibility for monitoring and control verification.
Manual override for service: Manual/Auto switch and potentiometer allow technicians to locally vary pneumatic output during setup, checkout, or troubleshooting.
Multiple pneumatic behaviors: Choose constant-bleed EPW models, EPW2 branch-pressure-holding models, or EPW2FS fail-safe models that exhaust branch pressure on power failure.
Installer-friendly design: Electrical terminals and pneumatic fittings are separated for cleaner panel wiring and tubing, with optional gauge models for direct pressure readings.
Reliable field package: Integral 80-100 micron filtering, removable brass fittings, snaptrack mounting, RoHS2/WEEE compliance, and ACI’s two-year warranty support dependable operation.

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Series-EPW

From ^$ 428.00

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11 Variations available

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Data Sheet

Product Overview

Accuracy Detail Output Pressure Accuracy: 2% full scale at room temperature (above 1 psig or 6.895 kPa) 3% full scale across operating temperature range (above 1 psig or 6.895 kPa); Gauge Pressure Accuracy (Gauge Models): ± 2.5% Midscale (± 3.5% Full Scale)
Air Supply Pressure, Max 25 psi
Air Supply Pressure, Min 20 psi
Applications Air and HVAC, Building and Maintenance, Environmental Monitoring, Pneumatic Systems
Approvals RoHS2, WEEE
Auto/Manual function Manual/Auto Override Switch: MAN function = output can be varied
Control Valve 1 Valve
Electrical Connection Screw Terminal
Filter Furnished with integral-in-barb 80-100 micron lter (Part # PN004) Optional standard barb (PN002) with external 5 micron in-line lter (PN021)
Input Type PWM
Materials PVC
Operating Humidity 10 to 95% RH, non-condensing
Operating Temperature, Max 120 °F
Operating Temperature, Min 35 °F
Output Note Feedback Output Signal Range: 0-5 VDC = Output Span
Output Pressure Range 0 to 10 psi, 0 to 15 psi, 0 to 20 psi
Pressure Note Gauge Pressure Range (Gauge Models): 0-30psig (0-200 kPa), Output Pressure Range-Jumper Selectable: 0-10 psig (0-68.95 kPa), 0-15 psig (0-103.43 kPa) or 0-20 psig (137.9 kPa)
Pulse Input Note Input Pulse Source: Relay Contact Closure, Transistor (solid state relay) or Triac; Input Pulse Trigger Level (@ Impedance): 9-24 VAC or VDC @ 750Ω nominal; O Time Between Pulses: 10 milliseconds minimum
Resolution Selectable Ranges-See Ordering Grid
Series ID Series-EPW
Storage Temperature, Max 150 °F
Storage Temperature, Min -20 °F
Supply Current 50 mA
Supply Voltage 24 Vac/Vdc
Tightening Torque 0.5 Nm (Minimum); 0.6 Nm (Maximum)
Tube Size 1/4 in OD x 1/8 in ID
Wire Gauge 26 to 16 AWG