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.
Indoor Venting Kit
– Custom Heat Fab, 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
| Model Number | Alt PDF | PDF of Gas Train | PDF of Wiring Diagram | Max Input MBH | Max Output MBH | Min Input MBH | Min Output MBH | Nat. Gas Turndown Ratio | Max Ind. HX Input | # of HX's | Max CFM | Max APD @ Min Rise | Max Temp Rise | Min CFM | Min APD @ Max Rise | Dim A | Dim B | Dim C | Dim D | Weight (Lbs.) | Total Amps 120V | Total Amps 208V 230V | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HDB-HHX-180-360-I | 360 | 292 | 36 | 29.16 | 10 to 1 | 180 | 2 | 9000 | 0.04 | 60 | 4500 | 0.01 | 40.63 | 35.13 | 78.4 | 17.15 | 651 | 8 | 5 | ||||||||
| HDB-HHX-200-400-I | 400 | 324 | 40 | 32.4 | 10 to 1 | 200 | 2 | 10000 | 0.04 | 60 | 5000 | 0.01 | 40.63 | 35.13 | 78.4 | 17.15 | 651 | 8 | 5 | ||||||||
| HDB-HHX 225-450-I | 450 | 364 | 45 | 36.45 | 10 to 1 | 225 | 2 | 11250 | 0.07 | 60 | 5625 | 0.02 | 40.63 | 35.13 | 78.4 | 17.15 | 651 | 8 | 5 | ||||||||
| HDB-HHX 250-500-I | 500 | 405 | 50 | 40.5 | 10 to 1 | 250 | 2 | 12500 | 0.08 | 60 | 6250 | 0.02 | 40.63 | 35.13 | 78.4 | 17.15 | 651 | 8 | 5 | ||||||||
| HDB-HHX 270-540-I | 540 | 437 | 54 | 43.74 | 10 to 1 | 270 | 2 | 13500 | 0.12 | 60 | 6750 | 0.03 | 40.63 | 35.13 | 78.4 | 17.15 | 697 | 8 | 5 | ||||||||
| HDB-HHX-180-540-I | 540 | 437 | 36 | 29.16 | 15 to 1 | 180 | 3 | 13500 | 0.04 | 60 | 6750 | 0.01 | 60.13 | 35.13 | 78.4 | 17.15 | 977 | 12 | 7.5 | ||||||||
| HDB-HHX-200-600-I | 600 | 486 | 40 | 32.4 | 15 to 1 | 200 | 3 | 15000 | 0.04 | 60 | 7500 | 0.01 | 60.13 | 35.13 | 78.4 | 17.15 | 977 | 12 | 7.5 | ||||||||
| HDB-HHX 300-600-I | 600 | 486 | 60 | 48.6 | 10 to 1 | 300 | 2 | 15000 | 0.15 | 60 | 7500 | 0.04 | 40.63 | 35.13 | 78.4 | 17.15 | 697 | 8 | 5 | ||||||||
| HDB-HHX 315-630-I | 630 | 510 | 63 | 51.03 | 10 to 1 | 315 | 2 | 15750 | 0.19 | 60 | 7875 | 0.05 | 40.63 | 35.13 | 78.4 | 17.15 | 743 | 8 | 5 | ||||||||
| HDB-HHX 225-675-I | 675 | 547 | 45 | 36.45 | 15 to 1 | 225 | 3 | 16875 | 0.07 | 60 | 8438 | 0.02 | 60.13 | 35.13 | 78.4 | 17.15 | 977 | 12 | 7.5 | ||||||||
| HDB-HHX 350-700-I | 700 | 567 | 70 | 56.7 | 10 to 1 | 350 | 2 | 17500 | 0.24 | 60 | 8750 | 0.06 | 40.63 | 35.13 | 78.4 | 17.15 | 743 | 8 | 5 | ||||||||
| HDB-HHX 700-700-I | 700 | 567 | 70 | 56.7 | 10 to 1 | 700 | 1 | 17500 | 0.22 | 100 | 5250 | 0.02 | 30.63 | 48 | 78.4 | 19 | 832 | 8 | |||||||||
| HDB-HHX 360-720-I | 720 | 583 | 72 | 58.32 | 10 to 1 | 360 | 2 | 18000 | 0.3 | 60 | 9000 | 0.07 | 40.63 | 35.13 | 78.4 | 17.15 | 792 | 8 | 5 | ||||||||
| HDB-HHX-180-720-I | 720 | 583 | 36 | 29.16 | 20 to 1 | 180 | 4 | 18000 | 0.04 | 60 | 9000 | 0.01 | 79.63 | 35.13 | 78.4 | 17.15 | 1302 | 16 | 10 | ||||||||
| HDB-HHX 250-750-I | 750 | 608 | 50 | 40.5 | 15 to 1 | 250 | 3 | 18750 | 0.08 | 60 | 9375 | 0.02 | 60.13 | 35.13 | 78.4 | 17.15 | 977 | 12 | 7.5 | ||||||||
| HDB-HHX 375-750-I | 750 | 608 | 75 | 60.75 | 10 to 1 | 375 | 2 | 18750 | 0.33 | 60 | 9375 | 0.08 | 40.63 | 35.13 | 78.4 | 17.15 | 789 | 8 | 5 | ||||||||
| HDB-HHX 400-800-I | 800 | 648 | 80 | 64.8 | 10 to 1 | 400 | 2 | 20000 | 0.38 | 60 | 10000 | 0.09 | 40.63 | 35.13 | 78.4 | 17.15 | 789 | 8 | 5 | ||||||||
| HDB-HHX-200-800-I | 800 | 648 | 40 | 32.4 | 20 to 1 | 200 | 4 | 20000 | 0.04 | 60 | 10000 | 0.01 | 79.63 | 35.13 | 78.4 | 17.15 | 1302 | 16 | 10 | ||||||||
| HDB-HHX 800-800-I | 800 | 648 | 80 | 64.8 | 10 to 1 | 800 | 1 | 20000 | 0.29 | 90 | 6667 | 0.03 | 30.63 | 48 | 78.4 | 19 | 832 | 8 | |||||||||
| HDB-HHX 270-810-I | 810 | 656 | 54 | 43.74 | 15 to 1 | 270 | 3 | 20250 | 0.12 | 60 | 10125 | 0.03 | 60.13 | 35.13 | 78.4 | 17.15 | 1046 | 12 | 7.5 | ||||||||
| HDB-HHX 225-900-I | 900 | 729 | 45 | 36.45 | 20 to 1 | 225 | 4 | 22500 | 0.07 | 60 | 11250 | 0.02 | 79.63 | 35.13 | 78.4 | 17.15 | 1309 | 16 | 10 | ||||||||
| HDB-HHX 300-900-I | 900 | 729 | 60 | 48.6 | 15 to 1 | 300 | 3 | 22500 | 0.15 | 60 | 11250 | 0.04 | 60.13 | 35.13 | 78.4 | 17.15 | 1031 | 12 | 7.5 | ||||||||
| HDB-HHX 900-900-I | 900 | 729 | 90 | 72.9 | 10 to 1 | 900 | 1 | 22500 | 0.37 | 80 | 8438 | 0.05 | 30.63 | 48 | 78.4 | 19 | 857 | 10 | |||||||||
| HDB-HHX-180-900-I | 900 | 729 | 36 | 29.16 | 25 to 1 | 180 | 5 | 22500 | 0.04 | 60 | 11250 | 0.01 | 99.13 | 35.13 | 78.4 | 17.15 | 1637 | 20 | 12.5 | ||||||||
| HDB-HHX 315-945-I | 945 | 765 | 63 | 51.03 | 15 to 1 | 315 | 3 | 23625 | 0.19 | 60 | 11813 | 0.05 | 60.13 | 35.13 | 78.4 | 17.15 | 1100 | 12 | 7.5 | ||||||||
| HDB-HHX 500-1000-I | 1000 | 810 | 100 | 81 | 10 to 1 | 500 | 2 | 25000 | 0.73 | 70 | 10714 | 0.13 | 45.63 | 41.64 | 78.4 | 20 | 847 | 10 | |||||||||
| HDB-HHX-200-1000-I | 1000 | 810 | 40 | 32.4 | 25 to 1 | 200 | 5 | 25000 | 0.04 | 60 | 12500 | 0.01 | 99.13 | 35.13 | 78.4 | 17.15 | 1637 | 20 | 12.5 | ||||||||
| HDB-HHX 1000-1000-I | 1000 | 810 | 100 | 81 | 10 to 1 | 1000 | 1 | 25000 | 0.57 | 90 | 8333 | 0.06 | 30.63 | 48 | 78.4 | 19 | 896 | 10 | |||||||||
| HDB-HHX 250-1000-I | 1000 | 810 | 50 | 40.5 | 20 to 1 | 250 | 4 | 25000 | 0.08 | 60 | 12500 | 0.02 | 79.63 | 35.13 | 78.4 | 17.15 | 1309 | 16 | 10 | ||||||||
| HDB-HHX 350-1050-I | 1050 | 850 | 70 | 56.7 | 15 to 1 | 350 | 3 | 26250 | 0.24 | 60 | 13125 | 0.06 | 60.13 | 35.13 | 78.4 | 17.15 | 1100 | 12 | 7.5 | ||||||||
| HDB-HHX 270-1080-I | 1080 | 875 | 54 | 43.74 | 20 to 1 | 270 | 4 | 27000 | 0.12 | 60 | 13500 | 0.03 | 79.63 | 35.13 | 78.4 | 17.15 | 1394 | 16 | 10 | ||||||||
| HDB-HHX 360-1080-I | 1080 | 875 | 72 | 58.32 | 15 to 1 | 360 | 3 | 27000 | 0.3 | 60 | 13500 | 0.07 | 60.13 | 35.13 | 78.4 | 17.15 | 1169 | 12 | 7.5 | ||||||||
| HDB-HHX 1100-1100-I | 1100 | 891 | 110 | 89.1 | 10 to 1 | 1100 | 1 | 27500 | 0.69 | 85 | 9706 | 0.09 | 30.63 | 48 | 78.4 | 19 | 896 | 10 | |||||||||
| HDB-HHX 375-1125-I | 1125 | 911 | 75 | 60.75 | 15 to 1 | 375 | 3 | 28125 | 0.33 | 60 | 14063 | 0.08 | 60.13 | 35.13 | 78.4 | 17.15 | 1188 | 12 | 7.5 | ||||||||
| HDB-HHX 225-1125-I | 1125 | 911 | 45 | 36.45 | 25 to 1 | 225 | 5 | 28125 | 0.07 | 60 | 14063 | 0.02 | 99.13 | 35.13 | 78.4 | 17.15 | 1637 | 20 | |||||||||
| HDB-HHX 1200-1200-I | 1200 | 972 | 120 | 97.2 | 10 to 1 | 1200 | 1 | 30000 | 0.82 | 70 | 12857 | 0.15 | 30.63 | 48 | 78.4 | 19 | 894 | 10 | |||||||||
| HDB-HHX 600-1200-I | 1200 | 972 | 120 | 97.2 | 10 to 1 | 600 | 2 | 30000 | 1.31 | 80 | 11250 | 0.19 | 45.63 | 48.14 | 78.4 | 20 | 938 | 10 | |||||||||
| HDB-HHX 400-1200-I | 1200 | 972 | 80 | 64.8 | 15 to 1 | 400 | 3 | 30000 | 0.38 | 60 | 15000 | 0.09 | 60.13 | 35.13 | 78.4 | 17.15 | 1169 | 12 | 7.5 | ||||||||
| HDB-HHX 300-1200-I | 1200 | 972 | 60 | 48.6 | 20 to 1 | 300 | 4 | 30000 | 0.15 | 60 | 15000 | 0.04 | 79.63 | 35.13 | 78.4 | 17.15 | 1407 | 16 | 10 | ||||||||
| HDB-HHX 250-1250-I | 1250 | 1013 | 50 | 40.5 | 25 to 1 | 250 | 5 | 25000 | 0.08 | 60 | 12500 | 0.02 | 99.13 | 35.13 | 78.4 | 17.15 | 1604 | 20 | |||||||||
| HDB-HHX 1250-1250-I | 1250 | 1013 | 125 | 101.25 | 10 to 1 | 1250 | 1 | 31250 | 0.89 | 65 | 14423 | 0.19 | 30.63 | 48 | 78.4 | 19 | 896 | 10 | |||||||||
| HDB-HHX 315-1260-I | 1260 | 1021 | 63 | 51.03 | 20 to 1 | 315 | 4 | 31500 | 0.19 | 60 | 15750 | 0.05 | 79.63 | 35.13 | 78.4 | 17.15 | 1495 | 16 | 10 | ||||||||
| HDB-HHX 270-1350-I | 1350 | 1094 | 54 | 43.74 | 25 to 1 | 270 | 5 | 33750 | 0.12 | 60 | 16875 | 0.03 | 99.13 | 35.13 | 78.4 | 17.15 | 1752 | 20 | |||||||||
| HDB-HHX 700-1400-I | 1400 | 1134 | 70 | 56.7 | 20 to 1 | 700 | 2 | 35000 | 0.22 | 100 | 10500 | 0.02 | 59.63 | 48 | 78.4 | 19 | 1515 | 16 | |||||||||
| HDB-HHX 350-1400-I | 1400 | 1134 | 70 | 56.7 | 20 to 1 | 350 | 4 | 35000 | 0.24 | 60 | 17500 | 0.06 | 79.63 | 35.13 | 78.4 | 17.15 | 1459 | 16 | 10 | ||||||||
| HDB-HHX 360-1440-I | 1440 | 1166 | 72 | 58.32 | 20 to 1 | 360 | 4 | 36000 | 0.3 | 60 | 18000 | 0.07 | 79.63 | 35.13 | 78.4 | 17.15 | 1563 | 16 | 10 | ||||||||
| HDB-HHX 500-1500-I | 1500 | 1215 | 100 | 81 | 15 to 1 | 500 | 3 | 37500 | 0.73 | 70 | 16071 | 0.13 | 67.63 | 41.64 | 78.4 | 20 | 1286 | 15 | 7.5 | ||||||||
| HDB-HHX 375-1500-I | 1500 | 1215 | 75 | 60.75 | 20 to 1 | 375 | 4 | 37500 | 0.33 | 60 | 18750 | 0.08 | 79.63 | 35.13 | 78.4 | 17.15 | 1551 | 16 | 10 | ||||||||
| HDB-HHX 300-1500-I | 1500 | 1215 | 60 | 48.6 | 25 to 1 | 300 | 5 | 37500 | 0.15 | 60 | 18750 | 0.04 | 99.13 | 35.13 | 78.4 | 17.15 | 1789 | 20 | |||||||||
| HDB-HHX 315-1575-I | 1575 | 1276 | 63 | 51.03 | 25 to 1 | 315 | 5 | 39375 | 0.19 | 60 | 19688 | 0.05 | 99.13 | 35.13 | 78.4 | 17.15 | 1869 | 20 | |||||||||
| HDB-HHX 800-1600-I | 1600 | 1296 | 80 | 64.8 | 20 to 1 | 800 | 2 | 40000 | 0.29 | 90 | 13333 | 0.03 | 59.63 | 48 | 78.4 | 19 | 1515 | 16 | |||||||||
| HDB-HHX 400-1600-I | 1600 | 1296 | 80 | 64.8 | 20 to 1 | 400 | 4 | 40000 | 0.38 | 60 | 20000 | 0.09 | 79.63 | 35.13 | 78.4 | 17.15 | 1551 | 16 | 10 | ||||||||
| HDB-HHX 350-1750-I | 1750 | 1418 | 70 | 56.7 | 25 to 1 | 350 | 5 | 43750 | 0.24 | 60 | 21875 | 0.06 | 99.13 | 35.13 | 78.4 | 17.15 | 1816 | 20 | 12.5 | ||||||||
| HDB-HHX 900-1800-I | 1800 | 1458 | 90 | 72.9 | 20 to 1 | 900 | 2 | 45000 | 0.37 | 80 | 16875 | 0.05 | 59.63 | 48 | 78.4 | 19 | 1561 | 15 | |||||||||
| HDB-HHX 600-1800-I | 1800 | 1458 | 120 | 97.2 | 15 to 1 | 600 | 3 | 45000 | 1.31 | 80 | 16875 | 0.19 | 67.63 | 48.14 | 78.4 | 20 | 1423 | 20 | 7.5 | ||||||||
| HDB-HHX 360-1800-I | 1800 | 1458 | 72 | 58.32 | 25 to 1 | 360 | 5 | 45000 | 0.3 | 60 | 22500 | 0.07 | 99.13 | 35.13 | 78.4 | 17.15 | 1954 | 20 | |||||||||
| HDB-HHX 375-1875-I | 1875 | 1519 | 75 | 60.75 | 25 to 1 | 375 | 5 | 46875 | 0.33 | 60 | 23438 | 0.08 | 99.13 | 35.13 | 78.4 | 17.15 | 1931 | 20 | 12.5 | ||||||||
| HDB-HHX 500-2000-I | 2000 | 1620 | 100 | 81 | 20 to 1 | 500 | 4 | 50000 | 0.73 | 70 | 21429 | 0.13 | 89.63 | 41.64 | 78.4 | 20 | 1708 | 20 | |||||||||
| HDB-HHX 400-2000-I | 2000 | 1620 | 80 | 64.8 | 25 to 1 | 400 | 5 | 50000 | 0.38 | 60 | 25000 | 0.09 | 99.13 | 35.13 | 78.4 | 17.15 | 1931 | 20 | 12.5 | ||||||||
| HDB-HHX 1000-2000-I | 2000 | 1620 | 100 | 81 | 20 to 1 | 1000 | 2 | 50000 | 0.57 | 90 | 16667 | 0.06 | 59.63 | 48 | 78.4 | 19 | 1630 | 20 | |||||||||
| HDB-HHX 700-2100-I | 2100 | 1701 | 70 | 56.7 | 30 to 1 | 700 | 3 | 52500 | 0.22 | 100 | 15750 | 0.02 | 88.63 | 48 | 78.4 | 19 | 2146 | 24 | |||||||||
| HDB-HHX 1100-2200-I | 2200 | 1782 | 110 | 89.1 | 20 to 1 | 1100 | 2 | 55000 | 0.69 | 85 | 19412 | 0.09 | 59.63 | 48 | 78.4 | 19 | 1630 | 20 | |||||||||
| HDB-HHX 800-2400-I | 2400 | 1944 | 80 | 64.8 | 30 to 1 | 800 | 3 | 60000 | 0.29 | 90 | 20000 | 0.03 | 88.63 | 48 | 78.4 | 19 | 2146 | 24 | |||||||||
| HDB-HHX 1200-2400-I | 2400 | 1944 | 120 | 97.2 | 20 to 1 | 1200 | 2 | 60000 | 0.82 | 70 | 25714 | 0.15 | 59.63 | 48 | 78.4 | 19 | 1630 | 20 | |||||||||
| HDB-HHX 600-2400-I | 2400 | 1944 | 120 | 97.2 | 20 to 1 | 600 | 4 | 60000 | 1.31 | 80 | 22500 | 0.19 | 89.63 | 48.14 | 78.4 | 20 | 1643 | 20 | |||||||||
| HDB-HHX 500-2500-I | 2500 | 2025 | 100 | 81 | 25 to 1 | 500 | 5 | 62500 | 0.73 | 70 | 26786 | 0.13 | 111.63 | 41.64 | 78.4 | 20 | 1962 | 25 | |||||||||
| HDB-HHX 1250-2500-I | 2500 | 2025 | 125 | 101.25 | 20 to 1 | 1250 | 2 | 62500 | 0.89 | 65 | 28846 | 0.19 | 59.63 | 48 | 78.4 | 19 | 1630 | 20 | |||||||||
| HDB-HHX 900-2700-I | 2700 | 2187 | 90 | 72.9 | 30 to 1 | 900 | 3 | 67500 | 0.37 | 80 | 25313 | 0.05 | 88.63 | 48 | 78.4 | 19 | 2221 | 30 | |||||||||
| HDB-HHX 700-2800-I | 2800 | 2268 | 70 | 56.7 | 40 to 1 | 700 | 4 | 70000 | 0.22 | 100 | 21000 | 0.02 | 117.63 | 48 | 78.4 | 19 | 2833 | 32 | |||||||||
| HDB-HHX 1000-3000-I | 3000 | 2430 | 100 | 81 | 30 to 1 | 1000 | 3 | 75000 | 0.57 | 90 | 25000 | 0.06 | 88.63 | 48 | 78.4 | 19 | 2338 | 30 | |||||||||
| HDB-HHX 600-3000-I | 3000 | 2430 | 120 | 97.2 | 25 to 1 | 600 | 5 | 75000 | 1.31 | 80 | 28125 | 0.19 | 111.63 | 48.14 | 78.4 | 20 | 2118 | 25 | |||||||||
| HDB-HHX 800-3200-I | 3200 | 2592 | 80 | 64.8 | 40 to 1 | 800 | 4 | 80000 | 0.29 | 90 | 26667 | 0.03 | 117.63 | 48 | 78.4 | 19 | 2833 | 32 | |||||||||
| HDB-HHX 1100-3300-I | 3300 | 2673 | 110 | 89.1 | 30 to 1 | 1100 | 3 | 82500 | 0.69 | 85 | 29118 | 0.09 | 88.63 | 48 | 78.4 | 19 | 2338 | 30 | |||||||||
| HDB-HHX 900-3600-I | 3600 | 2916 | 90 | 72.9 | 40 to 1 | 900 | 4 | 90000 | 0.37 | 80 | 33750 | 0.05 | 117.63 | 48 | 78.4 | 19 | 2933 | 40 | |||||||||
| HDB-HHX 1200-3600-I | 3600 | 2916 | 120 | 97.2 | 30 to 1 | 1200 | 3 | 90000 | 0.82 | 70 | 38571 | 0.15 | 88.63 | 48 | 78.4 | 19 | 2338 | 30 | |||||||||
| HDB-HHX 1250-3750-I | 3750 | 3038 | 125 | 101.25 | 30 to 1 | 1250 | 3 | 93750 | 0.89 | 65 | 43269 | 0.19 | 88.63 | 48 | 78.4 | 19 | 2338 | 30 | |||||||||
| HDB-HHX 1000-4000-I | 4000 | 3240 | 100 | 81 | 40 to 1 | 1000 | 4 | 100000 | 0.57 | 90 | 33333 | 0.06 | 117.63 | 48 | 78.4 | 19 | 3089 | 40 | |||||||||
| HDB-HHX 1100-4400-I | 4400 | 3564 | 110 | 89.1 | 40 to 1 | 1100 | 4 | 110000 | 0.69 | 85 | 38824 | 0.09 | 117.63 | 48 | 78.4 | 19 | 3089 | 40 | |||||||||
| HDB-HHX 1200-4800-I | 4800 | 3888 | 120 | 97.2 | 40 to 1 | 1200 | 4 | 120000 | 0.82 | 70 | 51429 | 0.15 | 117.63 | 48 | 78.4 | 19 | 3089 | 40 | |||||||||
| HDB-HHX 1250-5000-I | 5000 | 4050 | 125 | 101.25 | 40 to 1 | 1250 | 4 | 125000 | 0.89 | 65 | 57692 | 0.19 | 117.63 | 48 | 78.4 | 19 | 3089 | 40 |