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ENERZONE HVAC INC.

VAH DX

VAH-DX Series: Integrated Heating and Cooling for Multi-Residential Comfort


The VAH-DX Series offers a compact, high-efficiency solution for year-round climate control in multi-residential applications. Combining hydronic heating with built-in DX cooling capability, these fan coil units deliver precise, quiet comfort from a single, space-saving platform. Equipped with EC motors, high-capacity 4-row coils, and a fully insulated cabinet, the VAH-DX is engineered for performance, energy savings, and low-noise operation.


Installation and maintenance are simplified with front-access MERV 8 filtration, overflow protection, and optional automatic balancing valves. Whether used in new builds or retrofit projects, the VAH-DX Series provides developers and contractors with a versatile, service-friendly system that meets both heating and cooling demands without compromising space or efficiency.

  • Vertical air handler combining hydronic heating and DX cooling for year-round climate control in a single compact unit.

  • Precision EC motor and variable-speed blower maintain quiet operation while optimizing energy use.

  • Integrated DX coil enhances cooling performance without requiring additional equipment.

  • Service-friendly design with front-access filter and overflow protection.

  • Available in 400, 600, 800 CFM, allowing scalable performance for varying suite sizes.

  • Compact footprint fits tight mechanical spaces without sacrificing capacity.

CFM:

400

600

700

Product Details

  • Vertical Air Handler with DX Cooling


    The VAH-DX Series delivers all-season comfort by pairing powerful hydronic heating with efficient DX cooling. Compact, insulated, and quiet, each unit features precision ECM motors and durable construction for high-efficiency performance in multi-residential applications.

  • Heating + Cooling in One Package

    • Airflow Range: 400–800 CFM (model dependent)

    • Heating: 4-row hydronic coil for high-output performance

    • Cooling: Factory-installed DX coil with refrigerant metering

    • Motor: Variable-speed ECM blower for energy savings and quiet operation

    • Noise: ≤40 dBA typical at standard operating speed

    • Protection: Integrated float switch for overflow control

    • Filtration: Front-loading MERV 8 filter for easy replacement

    *For detailed airflow, heating/cooling capacities, and motor specifications, please refer to the downloadable Engineering Spec Data.*

  • Additional Features

    • Year-round comfort with both hydronic heating and DX cooling in a single unit

    • Compact vertical cabinet designed for tight mechanical spaces

    • Galvanized steel casing with acoustic and thermal insulation

    • Field-serviceable components for efficient maintenance

    • Automatic balancing and precision water flow regulation for reliable operation

  • VAH-DX-400

    • Compact, high-efficiency design for small to mid-sized suites

    • 4-row water coil + DX cooling coil for dependable performance

    • Durable galvanized steel casing with acoustic insulation

    • Quiet ECM motor, integrated overflow protection, and front-access MERV 8 filter

    VAH-DX-600

    • Higher airflow and capacity for larger suites or demanding HVAC applications

    • 4-row hydronic coil with DX cooling coil for balanced comfort

    • Variable-speed ECM blower for efficiency and noise control

    • Noise-dampened casing, integrated float switch, and easy front filter access

    VAH-DX-800

    • Largest-capacity model in the series for high-demand environments

    • Robust 4-row water coil with DX cooling coil for maximum output

    • Precision flow regulation and variable-speed ECM motor

    • Service-friendly design with overflow protection and front-loading MERV 8 filter

  • Enerzone products are backed by a 1-year parts warranty and a 3-year limited warranty on coils.

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