Standard Rack Assembly

– Fully sheeted duct furnaces mounted in a 16-gauge galvanized steel frame.
– Provides listed temperature rise and air side pressure drop performance.
– Each furnace includes an individual shutoff valve, flexible gas connector & union piped to properly sized supply header.
– Condensate drains pre-piped to a common header.
– Easy removal of any single duct furnace.
– All controls prewired to a sequencer for system control.
– Customer only needs to provide Power, “Call for Heat” and a 0-10 VDC signal.

Weatherproof  Enclosure

– Complete weatherproof vestibule and cabinet with duct flanges.
– Large, hinged galvanized steel door for easy access to components and controls.
– Fresh air intakes assure adequate combustion air supply.
– All heaters pre-wired to marked terminal strip for electrical supply.
– Insulated vent connectors to prevent heat build-up in cabinet.

Indoor Venting Kit

– Custom HeatFab, SAF-T AL294C stainless construction.
– Category 1 rated common vent system to B-vent adapter.
– Provides proper venting of flue gases and prevents flue gas recirculation into burner combustion air supply.

Application Guidelines Product Specification User Guidelines OEM Instructions Submittal / Order Information

Note: You must be logged in to view CAD, Gas Train and Wiring Diagram files.
Model NumberStd PDF Alt PDF PDF of Gas TrainPDF of Wiring DiagramMax Temp RiseMax Input MBHMax Output MBHMin Input MBHMin Output MBHMax Avail. Turndown (Nat)Max Ind HX Input# of HX'sMax CFM @ Min RiseAPD @ Min RiseMin CFM @ Max RiseAPD @ Max RiseDim. ADim. BDim. CDim. DWeight (Lbs.)Total Amps 120VTotal Amps 208V 230V
HDA-VHP-250-500-I-WPDFPDFPDFPDF100500400504010 to 12502185190.8337040.0453.3476.1150.619.72N/a85
HDA-VHP-300-600-I-WPDFPDFPDFPDF100600480604810 to 13002222220.9744440.0559.8476.1150.616.21N/a85
HDA-VHP-350-700-I-WPDFPDFPDFPDF100700560705610 to 13502259261.0951850.0666.3476.1150.616.21N/a85
HDA-VHP-400-800-I-WPDFPDFPDFPDF100800640806410 to 14002296301.2059260.0672.8476.1150.616.21N/a85
HDA-VHP-300-900-I-WPDFPDFPDFPDF100900720604815 to 13003333330.9766670.0585.3176.1150.616.21N/a127.5
HDA-VHP-500-1000-I-WPDFPDFPDFPDF10010008001008010 to 15002370371.3874070.0785.8476.1150.619.72N/a105
HDA-VHP-350-1050-I-WPDFPDFPDFPDF1001050840705615 to 13503388891.0977780.0695.0676.1150.616.21N/a127.5
HDA-VHP-400-1200-I-WPDFPDFPDFPDF1001200960806415 to 14003444441.2088890.06104.8176.1150.616.21N/a127.5
HDA-VHP-600-1200-I-WPDFPDFPDFPDF10012009601209610 to 16002444441.5288890.0898.8476.1150.619.72N/a105
HDA-VHP-500-1500-I-WPDFPDFPDFPDF100150012001008015 to 15003555561.38111110.07124.3176.1150.619.72N/a157.5
HDA-VHP-600-1800-I-WPDFPDFPDFPDF100180014401209615 to 16003666671.52133330.08143.8176.1150.619.72N/a157.5
Note: For Propane gas, turndown is 60% of stated natural gas turndown.