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 Vestibule Enclosure

– Complete indoor or outdoor rated Vestibule cabinet.
– 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.


Select An Efficiency:

81%80%

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 NumberPDFAlt PDFPDF 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 DWeight (Lbs.)Total Amps 120VTotal Amps 208V 230VDim EDim F
HDB-VHP-180-360-IPDFPDFPDF360292362910 to 1180290000.119030000.0142.450.278.417.1385
HDB-VHP-200-400-IPDFPDFPDF400324403210 to 12002100000.139033330.0242.450.278.417.1385
HDB-VHP-225-450-IPDFPDFPDF450365453610 to 12252112500.169037500.0248.950.278.417.1369385
HDB-VHP-250-500-IPDFPDFPDF500405504110 to 12502125000.159041670.0248.950.278.417.1369685
HDB-VHP-270-540-IPDFPDFPDF540437544410 to 12702135000.139045000.0255.450.278.417.1374085
HDB-VHP-180-540-IPDFPDFPDF540437544415 to 11803135000.119045000.0162.7750.278.417.13127.5
HDB-VHP-300-600-IPDFPDFPDF600486604910 to 13002150000.169050000.0255.450.278.417.1374485
HDB-VHP-200-600-IPDFPDFPDF600486604915 to 12003150000.139050000.0262.7750.278.417.13127.5
HDB-VHP-315-630-IPDFPDFPDF630510635110 to 13152157500.159052500.0261.950.278.417.1379085
HDB-VHP-225-675-IPDFPDFPDF675547453615 to 12253168750.169056250.0272.5250.278.417.13875127.5
HDB-VHP-350-700-IPDFPDFPDF700567705710 to 13502175000.189058330.0261.950.278.417.1379485
HDB-VHP-360-720-IPDFPDFPDF720583725810 to 13602180000.169060000.0268.450.278.417.1385
HDB-VHP-375-750-IPDFPDFPDF750608756110 to 13752187500.189062500.0268.450.278.417.1384985
HDB-VHP-250-750-IPDFPDFPDF750608756115 to 12503187500.159062500.0272.5250.278.417.13127.5
HDB-VHP-400-800-IPDFPDFPDF800648806510 to 14002200000.29066670.0268.450.278.417.1384985
HDB-VHP-270-810-IPDFPDFPDF820664826615 to 12703205000.139068330.0282.2750.278.417.13127.5
HDB-VHP-300-900-IPDFPDFPDF900729604915 to 13003225000.169075000.0282.2750.278.417.13946127.5
HDB-VHP-315-945-IPDFPDFPDF945765635115 to 13153236250.159078750.0292.0250.278.417.131021127.5
HDB-VHP-500-1000-IPDFPDFPDF10008101008110 to 15002250000.219083330.0281.452.778.420.13110410
HDB-VHP-350-1050-IPDFPDFPDF1050851705715 to 13503262500.189087500.0292.0250.278.417.13926127.5
HDB-VHP-360-1080-IPDFPDFPDF10808751088715 to 13603270000.169090000.02101.7750.278.417.13127.5
HDB-VHP-375-1125-IPDFPDFPDF11259111129115 to 13753281250.189093750.02101.7750.278.417.13127.5
HDB-VHP-600-1200-IPDFPDFPDF12009721209710 to 16002300000.2390100000.0394.452.778.420.1396610
HDB-VHP-400-1200-IPDFPDFPDF1200972806515 to 14003300000.290100000.02101.7750.278.417.131021127.5
HDB-VHP-500-1500-IPDFPDFPDF150012151008115 to 15003375000.2190125000.02121.2752.778.420.131324157.5
HDB-VHP-600-1800-IPDFPDFPDF180014581209715 to 16003450000.2390150000.03140.7752.778.420.131504157.5
Note: For Propane gas, turndown is 60% of stated natural gas turndown.

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 NumberPDFAlt PDFPDF 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 DWeight (Lbs.)Total Amps 120VTotal Amps 208V 230V
HDB-VHP-225-450-IPDFPDFPDFPDF450360453610 to 12252166670.329037040.0248.8647.9878.811769385
HDB-VHP-250-500-IPDFPDFPDFPDF500400504010 to 12502185190.399041150.0248.8647.9878.811769685
HDB-VHP-270-540-IPDFPDFPDFPDF540432544310 to 12702200000.369044440.0255.3647.9878.811774085
HDB-VHP-300-600-IPDFPDFPDFPDF600480604810 to 13002222220.449049380.0355.3647.9878.811774485
HDB-VHP-315-630-IPDFPDFPDFPDF630504635010 to 13152233330.49051850.0261.8747.9878.811779085
HDB-VHP-225-675-IPDFPDFPDFPDF675540453615 to 12253250000.329055560.0265.1247.9878.8117875127.5
HDB-VHP-350-700-IPDFPDFPDFPDF700560705610 to 13502259260.489057610.0361.8747.9878.811779485
HDB-VHP-375-750-IPDFPDFPDFPDF750600756010 to 13752277780.469061730.0368.3747.9878.811784985
HDB-VHP-400-800-IPDFPDFPDFPDF800640806410 to 14002296300.529065840.0368.3747.9878.811784985
HDB-VHP-300-900-IPDFPDFPDFPDF900720604815 to 13003333330.449074070.0382.2447.9878.8117946127.5
HDB-VHP-315-945-IPDFPDFPDFPDF945756635015 to 13153350000.49077780.0291.9947.9878.81171021127.5
HDB-VHP-500-1000-IPDFPDFPDFPDF10008001008010 to 15002370370.577598770.0581.3752.578.8120110410
HDB-VHP-250-1000-IPDFPDFPDFPDF1000800504020 to 12504370370.399082300.0288.7447.9878.811710571610
HDB-VHP-350-1050-IPDFPDFPDFPDF1050840705615 to 13503388890.489086420.0391.9947.9878.8117926127.5
HDB-VHP-600-1200-IPDFPDFPDFPDF120010001209610 to 16002444440.6175118520.0594.3752.578.812096610
HDB-VHP-400-1200-IPDFPDFPDFPDF1200960806415 to 14003444440.529098770.03101.7447.9878.81171021127.5
HDB-VHP-500-1500-IPDFPDFPDFPDF150012001008015 to 15003555560.5775148150.05121.2452.578.81201324157.5
HDB-VHP-600-1800-IPDFPDFPDFPDF180014401209615 to 16003666670.6175177780.05140.7452.578.81201504157.5
Note: For Propane gas, turndown is 60% of stated natural gas turndown.
Model NumberPDFAlt PDFPDF 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 DWeight (Lbs.)Total Amps 120VTotal Amps 208V 230V
HDB-VHP-225-450-I-X2PDFPDFPDF900720907220 to 12254333340.6418074080.0448.8690.0578.811713861610
HDB-VHP-250-500-I-X2PDFPDFPDF10008001008020 to 12504370380.7818082300.0448.8690.0578.811713921610
HDB-VHP-270-540-I-X2PDFPDFPDF10808641088620 to 12704400000.7218088880.0455.3690.0578.811714801610
HDB-VHP-300-600-I-X2PDFPDFPDF12009601209620 to 13004444440.8818098760.0655.3690.0578.811714881610
HDB-VHP-315-630-I-X2PDFPDFPDF1260100812610020 to 13154466660.8180103700.0461.8790.0578.811715801610
HDB-VHP-225-675-I-X2PDFPDF13501080907230 to 12256500000.64180111120.0465.1290.0578.811717502415
HDB-VHP-350-700-I-X2PDFPDFPDF1400112014011220 to 13504518520.96180115220.0661.8790.0578.811715881610
HDB-VHP-375-750-I-X2PDFPDFPDF1500120015012020 to 13754555560.92180123460.0668.3790.0578.811716981610
HDB-VHP-400-800-I-X2PDFPDFPDF1600128016012820 to 14004592601.04180131680.0668.3790.0578.811716981610
HDB-VHP-300-900-I-X2PDFPDF180014401209630 to 13006666660.88180148140.0682.2490.0578.811718922415
HDB-VHP-315-945-I-X2PDFPDF1890151212610030 to 13156700000.8180155560.0491.9990.0578.811720422415
HDB-VHP-500-1000-I-X2PDFPDFPDF2000160020016020 to 15004740741.14150197540.181.3799.3278.812022082010
HDB-VHP-250-1000-I-X2PDF200016001008040 to 12508740740.78180164600.0488.7490.0578.811721143220
HDB-VHP-350-1050-I-X2PDFPDF2100168014011230 to 13506777780.96180172840.0691.9990.0578.811718522415
HDB-VHP-600-1200-I-X2PDFPDFPDF2400200024019220 to 16004888881.22150237040.194.3799.3278.812019322010
HDB-VHP-400-1200-I-X2PDFPDF2400192016012830 to 14006888881.04180197540.06101.7490.0578.811720422415
HDB-VHP-500-1500-I-X2PDFPDF3000240020016030 to 150061111121.14150296300.1121.2499.3278.812026483015
HDB-VHP-600-1800-I-X2PDFPDF3600288024019230 to 160061333341.22150355560.1140.7499.3278.812030083015