The HE-Z-50-H-220v is the 220V configuration of the HE-Z-50 zoning-capable air handler in Hi-Velocity's Small-Duct High-Velocity (SDHV) fan-coil line — engineered for hydronic heating, TX or chilled-water cooling and heat-pump applications, controlled by a Variable Frequency Drive (VFD) motor and PSB pressure-sensing board that maintain constant supply-air static pressure from 0.35–1.65 in. w.g..Key features 22 gauge sheet-metal cabinet with white polyester powder coating and 1" sound-attenuating insulation G-90 forward-curved centrifugal blower driven by a WEG CFW-10 Variable Frequency Drive Pre-wired PSB (Pressure Sensing Board) controller — automatic or manual VDC modes, trim pots for cooling/heating/recirculation, fan-delay timer, potable-water pump timer, emergency disconnect Multi-positional: horizontal, vertical or counter-flow; suspended or floor-mounted Compatible with RBM/RCM refrigerant cooling, WBM/WCM chilled-water, HWC hot-water and ESH/VESH electric strip coils Zoning-ready right out of the box — WEG controls pre-installed CSA / UL listed; complies with ASHRAE, ARI and DOE standards Specifications Model family Hi-Velocity HE-Z Series (SDHV fan-coil) Configuration Heating Unit Voltage 220V Rated CFM 550 CFM Cooling tonnage range 1.5–2 tons Max BTUH heating @ 190°F EWT 56,200 BTUH Max BTUH heating @ 160°F EWT 44,400 BTUH TX cooling capacity 24,000 BTUH Chilled-water cooling capacity 26,000 BTUH @ 42°F EWT Electric strip range 5–15 kW Supply duct 8"Ø (70′ max run) Return-air duct 12" Outlet count (2") 14–24 Shipping weight 86 lbs Shipping dimensions 37"x19"x17" ApplicationsThe HE-Z Series is the flagship Hi-Velocity SDHV air handler — ideal for retrofits, historic homes, custom builds, high-end multi-family and commercial fit-outs where conventional ductwork won't fit or where zoning, dehumidification and superior air filtration are required. Its VFD-driven pressure-controlled fan supports two-stage heating and cooling, constant fan, economizer operation and heat-pump back-up in a single factory-assembled unit.Documents HE-Z Installation Manual (PDF) HE-Z Standard Brochure (PDF) HE-Z Engineering Specifications (PDF)