– 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.

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

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Model NumberPDFPDF of Gas TrainPDF of Wiring DiagramMax Input MBHMax Output MBHMin Input MBHMin Output MBHNat. Gas Turndown RatioMax Ind. HX Input# of HX'sMax CFMMax APD @ Min RiseMax Temp RiseMin CFMMin APD @ Max RiseDim ADim BDim CDim DDim EDim FWeight (Lbs.)Total Amps 120VTotal Amps 208V 230V
HDB-VVX 180-360PDFPDFPDF3602883628.810 to 11802133340.036044440.013536.4178.811746.6248.8285
HDB-VVX 200-400PDFPDFPDF400320403210 to 12002148150.046049380.013536.4178.811746.6248.8285
HDB-VVX 225-450PDFPDFPDF450360453610 to 12252166670.066055560.013536.4178.811746.6248.8285
HDB-VVX 250-500PDFPDFPDF500400504010 to 12502185190.086061730.013536.4178.811746.6248.8285
HDB-VVX 270-540PDFPDFPDF5404325443.210 to 12702200000.116066670.013536.4178.811746.6248.8285
HDB-VVX 180-540PDFPDFPDF5404325443.215 to 11803200000.036066670.013553.7878.811763.9948.82127.5
HDB-VVX 300-600PDFPDFPDF600480604810 to 13002222220.136074070.023536.4178.811746.6248.8285
HDB-VVX 200-600PDFPDFPDF600480604815 to 12003222220.046074070.013553.7878.811763.9948.82127.5
HDB-VVX 315-630PDFPDFPDF6305046350.410 to 13152233330.176077780.023536.4178.811746.6248.8285
HDB-VVX 225-675PDFPDFPDF67554067.55415 to 12253250000.066083330.013553.7878.811763.9948.82127.5
HDB-VVX 350-700PDFPDFPDF700560705610 to 13502259260.26086420.033536.4178.811746.6248.8285
HDB-VVX 360-720PDFPDFPDF7205767257.610 to 13602266660.246088880.033536.4178.811746.6248.8285
HDB-VVX 180-720PDFPDFPDF7205767257.620 to 11804266670.036088890.013571.1578.811781.3648.821610
HDB-VVX 375-750PDFPDFPDF750600756010 to 13752277780.266092590.043536.4178.811746.6248.8285
HDB-VVX 250-750PDFPDFPDF750600756015 to 12503277780.086092590.013553.7878.811763.9948.82127.5
HDB-VVX 200-800PDFPDFPDF800640806420 to 12004296300.046098770.013571.1578.811781.3648.821610
HDB-VVX 400-800PDFPDFPDF800640806410 to 14002296300.36098770.043536.4178.811746.6248.8285
HDB-VVX 270-810PDFPDFPDF8106488164.815 to 12703300000.116010000.50.013553.7878.811763.9948.82127.5
HDB-VVX 300-900PDFPDFPDF900720907215 to 13003333330.1360111110.023553.7878.811763.9948.82127.5
HDB-VVX 180-900PDFPDFPDF900720907225 to 11805333330.0360111110.013588.5278.811798.7348.8220
HDB-VVX 225-900PDFPDFPDF900720907220 to 12254333330.0660111110.013571.1578.811781.3648.821610
HDB-VVX 315-945PDFPDFPDF94575694.575.615 to 13153350000.1760116670.023553.7878.811763.9948.82127.5
HDB-VVX 200-1000PDFPDFPDF10008001008025 to 12005370370.0460123460.013588.5278.811798.7348.8220
HDB-VVX 250-1000PDFPDFPDF10008001008020 to 12504370370.0860123460.013571.1578.811781.3648.821610
HDB-VVX 500-1000PDFPDFPDF10008001008010 to 15001370370.5660123460.0741.545.6779.0520.1555.7848.8210
HDB-VVX 350-1050PDFPDFPDF10508401058415 to 13503388890.260129630.033553.7878.811763.9948.82127.5
HDB-VVX 360-1080PDFPDFPDF108086410886.415 to 13603400000.2460133330.033553.7878.811763.9948.82127.5
HDB-VVX 270-1080PDFPDFPDF108086410886.420 to 12704400000.1160133340.013571.1578.811781.3648.821610
HDB-VVX 225-1125PDFPDFPDF1125900112.59025 to 12255416670.0660138890.013588.5278.811798.7348.8220
HDB-VVX 375-1125PDFPDFPDF1125900112.59015 to 13753416670.2660138890.043553.7878.811763.9948.82127.5
HDB-VVX 400-1200PDFPDFPDF12009601209615 to 14003444440.360148150.043553.7878.811763.9948.82127.5
HDB-VVX 600-1200PDFPDFPDF12009601209610 to 16002444440.9460148150.1241.545.6779.0520.1555.7848.8210
HDB-VVX 300-1200PDFPDFPDF12009601209620 to 13004444440.1360148150.023571.1578.811781.3648.821610
HDB-VVX 250-1250PDFPDFPDF1250100012510025 to 12505462960.0860154320.013588.5278.811798.7348.8220
HDB-VVX 315-1260PDFPDFPDF12601008126100.820 to 13154466670.1760155560.023571.1578.811781.3648.821610
HDB-VVX 270-1350PDFPDFPDF1350108013510825 to 12705500000.1160133340.013588.5278.811798.7348.8220
HDB-VVX 350-1400PDFPDFPDF1400112014011220 to 13504518520.260172840.033571.1578.811781.3648.821610
HDB-VVX 360-1440PDFPDFPDF14401152144115.220 to 13604533320.2460177760.033571.1578.811781.3648.821610
HDB-VVX 500-1500PDFPDFPDF1500120015012015 to 15003555560.5660185190.0741.567.6779.0520.1577.7848.82157.5
HDB-VVX 375-1500PDFPDFPDF1500120015012020 to 13754555560.2660185190.043571.1578.811781.3648.821610
HDB-VVX 300-1500PDFPDFPDF1500120015012025 to 13005555560.1360185190.023588.5278.811798.7348.8220
HDB-VVX 315-1575PDFPDFPDF15751260157.512625 to 13155583330.1760194440.023588.5278.811798.7348.8220
HDB-VVX 400-1600PDFPDFPDF1600128016012820 to 14004592590.360197530.043571.1578.811781.3648.821610
HDB-VVX 350-1750PDFPDFPDF1750140017514025 to 13505648150.260216050.033588.5278.811798.7348.822012.5
HDB-VVX 360-1800PDFPDFPDF1800144018014425 to 13605666650.2460222200.033588.5278.811798.7348.8220
HDB-VVX 600-1800PDFPDFPDF1800144018014415 to 16003666670.9460222220.1241.567.6779.0520.1577.7848.82157.5
HDB-VVX 375-1875PDFPDFPDF18751500187.515025 to 13755694440.2660231480.043588.5278.811798.7348.822012.5
HDB-VVX 500-2000PDFPDFPDF2000160020016020 to 15004740740.5660246910.0741.589.6779.0520.1599.7848.8220
HDB-VVX 400-2000PDFPDFPDF2000160020016025 to 14005740740.360246910.043588.5278.811798.7348.822012.5
HDB-VVX 600-2400PDFPDFPDF2400192024019220 to 16004888890.9460296300.1241.589.6779.0520.1599.7848.8220
HDB-VVX 500-2500PDFPDFPDF2500200025020025 to 15005925930.5660308640.0741.5111.6779.0520.15121.7848.8225
HDB-VVX 600-3000PDFPDFPDF3000240030024025 to 160051111110.9460370370.1241.5111.6779.0520.15121.7848.8225
Note: For Propane gas, turndown is 60% of stated natural gas turndown.