Specifications

Specification	Value
Air Volume (Rated – Max)	CFM: 4,118 – 4,706 \| CMH: 7,000 – 8,000 \| L/s: 1,944 – 2,222
Dimensions / Weight	L 650 mm × W 1,305 mm × H 595 mm / 98 kg
Cabinet Material	Galvanized Steel, 1.2 mm / 16 Gauge
Cabinet Finish	High-build epoxy powder coating
Voltage & Power	230 VAC ±10%, 50/60 Hz \| With UV: 500 W \| Without UV: 200 W
Airflow Direction	Default: Right to Left; Reversible: Left to Right
Ionising Voltages	High Voltage: 12 – 14 kVdc \| Low Voltage: 6 – 7 kVdc
Static Pressure	39 Pa / 0.2″
Power Supply Design	High-frequency solid-state, self-regulating
Filtration Efficiency	DOP Test: up to 95% single-pass, up to 99% double-pass (calculated) \| ASHRAE 52.2-2012: up to 96% single-pass, up to 99% double-pass (calculated)
MERV Rating	MERV 15 at 2.5 m/s to 3.8 m/s face velocity
Pre-Filter	Aluminum wire mesh, 3-layer, 530 × 19 × 505 mm, 0.55 kg — Washable × 1
Electrostatic Cell Dimensions	L 535 mm × W 315 mm × H 505 mm
Plates per Cell	49
Number of Cells / Cell Weight	2 cells / 18 kg each
Total Collecting Area	14.4 m²
Particle Size Range	0.01 microns to 10 microns
Installation Options	High or low altitude; multiple units stackable
Certifications	ASHRAE 52.2-2012

Features

Door-open power-off protection automatically de-energises the 12 – 14 kVdc ionising stage before technicians access the electrostatic cells, eliminating high-voltage exposure during maintenance
Over-current, over-voltage, and over-temperature protection circuits with fan cooling for the power supply module, maintaining stable operation during continuous service
Effective capture of cooking odours, smoke, and oil aerosols from the exhaust stream through combined electrostatic precipitation and UV treatment
BMS (Building Management System) terminals provided for integration with centralised building automation and remote monitoring of purification performance
Electric intensity auto-control function compensates for plate fouling over time, sustaining a high purification rate without manual voltage adjustment between cleaning cycles
Reversible airflow direction (right-to-left or left-to-right) accommodates both duct approach orientations without requiring a mirrored unit variant
Washable aluminium wire mesh pre-filter reduces consumable costs compared to disposable pre-filter alternatives and extends electrostatic cell cleaning intervals
Stackable installation design allows multiple HEL-8000 units to be banked for exhausts exceeding 8,000 CMH without bespoke plenum fabrication

The HEL-8000 Ecology Unit is a commercial kitchen electrostatic precipitator rated for 7,000 – 8,000 CMH (4,118 – 4,706 CFM), achieving MERV 15 performance and up to 99% filtration efficiency on particles between 0.01 and 10 microns in double-pass configuration. It is the correct specification for restaurant and food court exhaust systems that must comply with local air quality ordinances restricting visible grease and smoke at the discharge point, where electrostatic capture combined with UV treatment eliminates what a conventional media filter cannot.

The two electrostatic cells contribute a combined 14.4 m² of collecting plate area — 49 plates per cell across a 535 × 505 mm cell face — which is the plate surface required to maintain ASHRAE 52.2-2012 certified efficiency at face velocities between 2.5 m/s and 3.8 m/s. Power draw splits by configuration: 500 W with UV active and 200 W with UV off, both at 230 VAC ±10% / 50 – 60 Hz, giving operators the option to reduce operating cost during low-load service periods without fully disabling particulate capture. The BMS terminal block allows the building automation system to monitor ionising voltage and fan status, enabling predictive maintenance scheduling rather than reactive cell cleaning.

The reversible airflow direction — default right-to-left, switchable to left-to-right — eliminates the need to order a mirror-image unit when the duct approach comes from the opposite side of the installation space, a practical advantage in kitchen refurbishments where the existing ductwork layout cannot be changed. For applications that require odour elimination beyond what the electrostatic and UV stages remove — particularly kitchens producing strong aromatic compounds from charcoal or tandoor cooking — pair the HEL-8000 with the CF-8000 Activated Carbon Filter, which matches this unit’s 7,000 – 8,000 CMH airflow range exactly and connects to the same duct flange dimensions.