VoltAire Product Line
Pressurization units
Maintain positive building pressure to keep dust, moisture, and contaminants out of critical enclosures and equipment rooms. Two solutions — from a bolt-on module for existing Bard HVAC systems to a fully automated standalone unit.
Two solutions. One goal.
Whether you need a cost-efficient add-on for an existing HVAC system or a fully automated standalone unit, VoltAire has you covered.
PM300 / PM450
Pressurization Module for Bard Wall-Mount HVAC
The PM Series bolts directly onto Bard wall-mount HVAC units to add positive building pressure without a separate installation. Manual rotary speed control lets technicians dial in the exact CFM needed. Dual-stage filtration with a mist eliminator and MERV 8 final filter keeps contaminants out.
Spec
PM300
PM450
Airflow at 50Hz is derated approximately 20%.
Key features
Optional
PU1600
PLC-Controlled Pressurization Unit — 1,600 CFM
The PU1600 is a wall-mounted, self-contained pressurization unit with full PLC digital control. An ECM variable-speed fan automatically modulates to maintain your target building pressure — positive or negative — via adjustable PID loops. Digital user interface with password-protected access provides real-time pressure monitoring, alarm management, and automatic filter loading compensation.
Spec
PU1600RN
PU1600RR
PU1600RS
Key features
Alarm monitoring
Installation requires field modification
The PM Series feeds outside air directly into your Bard wall-mount unit, so installation involves cutting an opening into the side panel of the Bard unit where the module mounts. This is straightforward sheet-metal work, but it must be done on-site as part of the install — the PM does not simply bolt on to an unmodified cabinet.
W42–W72 (3.5–6 Ton) — Direct Mount
Cut the Bard side panel and finish the edge with the supplied painted front trim and rear metal backer. The PM mounts directly to the cabinet.
W18–W36 (1.5–3 Ton) — With Plenum
Cut a 10″ × 10″ opening, tape the edges with the supplied foil tape, and mount the PMP plenum adapter before attaching the module.
VoltAire supplies the trim, gasket, foil tape, and fastener kits needed to finish the cut cleanly. If the Bard unit has an economizer, an economizer modification kit holds the damper open so the module can pressurize correctly.
Modification of the Bard unit and any economizer is the responsibility of the installing Bard distributor, not VoltAire. Always review the VoltAire installation manual before cutting — and check the panel interior for wiring, copper lines, and components first.
Applications
Positive pressure is critical anywhere contaminants threaten sensitive equipment.
Data Centers
Prevent particulate ingress into server rooms
Battery Rooms
Control hydrogen gas accumulation and dust
Equipment Buildings
Protect PLC and control equipment from environment
Clean Rooms
Maintain ISO classification pressure differentials
Manufacturing
Keep production areas free from external contaminants
Telecom Shelters
Protect network equipment in remote locations
Need help selecting the right unit?
Our team can help you determine the right pressurization solution for your building envelope, airflow requirements, and existing HVAC infrastructure.
Specs & Manuals
Specification sheets for your submittal, and installation manuals for the crew. The PM module ships with two manuals — pick the one matching your Bard host unit.