Make Up Air: JH Series

JH – Just Heating

The JH Series Make Up Air Units are available as a either Direct or Indirect-Fired Gas, Hot-Water Fluid Coil, Indirect Steam Coil, Electric Resistant and Heat Recovery.

Available from 2500 CFM to 100,000 CFM in the following blower modules:

  • DWDI Forward Curve Centrifugal
  • DWDI Airfoil Backward Curve
  • SWSI Backward Curve Plenum

Available in vertical and horizontal configurations

JH - Just Heating
JH - Just Heating

Direct-Fired Gas Heating Module

Constructed of 18-gauge Galvalume ®

    • 25-year rust-through warranty
    • Double walled with 1″ insulation

    • Wash down capable

  • State-of-the-art gas train assembly

    • Class A Honetwell safety shut-off valves

    • High and low gas pressure switches

    • Power Actuators with Proof-of-Closure Switch

    • Maxitrol Regulating Valve (30 to 1 turndown)

    • Low-temperature operation (to -20°F)

  • Maxon NP-LE Series low emissions line burner assembly

    • Stainless steel mixing plates

    • Cast aluminum manifold housing

    • UV flame sensor

  • Safety Limits include High Duct Temperature Sensor and Air Proving

  • Siemens LME7 flame safeguard burner control unit

  • GE-GAP/IRI compliant

  • Worldwide compliance, including UL, CSA, CE, NFPA and ISO 9001

  • Optional 80/20 recirc configuration
  • Optional Space Heater: High Temperature Rise, Intermittent Operation

Controls

  • Electronic controls with either PLC or DDC Logic Control with HMI
  • Discharge Temperature Control Standard, Zone/Room Control Available
  • Pre-Programmed Variable Frequency Drives available for all units

Indirect-Fired Gas Heating Module

Constructed of 18-gauge Galvalume ®

    • 25-year rust-through warranty

    • Double walled with 1″ insulation

    • Wash down capable

  • In-Shot Type Duct Heater

  • 409 Stainless Steel Heat Exchanger
  • Full Modulating, 2-Step Hi/Lo or On/Off Control
  • Safety Limits include High Temperature Sensor, Air Proving, and Flame Roll Out Switches
  • Indirect-Fired duct heaters up to 2,400,000 BTU input

Controls

  • Electronic controls with either PLC or DDC Logic Control with HMI
  • Discharge Temperature Control Standard, Zone/Room Control Available
  • Pre-Programmed Variable Frequency Drives available for all units