HDB-VHP Indoor Units

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 Number	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-VHP-180-360-I	PDF	PDF	PDF	360	292	36	29	10 to 1	180	2	9000	0.11	90	3000	0.01	42.4	50.2	78.4	17.13		8	5
HDB-VHP-200-400-I	PDF	PDF	PDF	400	324	40	32	10 to 1	200	2	10000	0.13	90	3333	0.02	42.4	50.2	78.4	17.13		8	5
HDB-VHP-225-450-I	PDF	PDF	PDF	450	365	45	36	10 to 1	225	2	11250	0.16	90	3750	0.02	48.9	50.2	78.4	17.13	693	8	5
HDB-VHP-250-500-I	PDF	PDF	PDF	500	405	50	41	10 to 1	250	2	12500	0.15	90	4167	0.02	48.9	50.2	78.4	17.13	696	8	5
HDB-VHP-270-540-I	PDF	PDF	PDF	540	437	54	44	10 to 1	270	2	13500	0.13	90	4500	0.02	55.4	50.2	78.4	17.13	740	8	5
HDB-VHP-180-540-I	PDF	PDF	PDF	540	437	54	44	15 to 1	180	3	13500	0.11	90	4500	0.01	62.77	50.2	78.4	17.13		12	7.5
HDB-VHP-300-600-I	PDF	PDF	PDF	600	486	60	49	10 to 1	300	2	15000	0.16	90	5000	0.02	55.4	50.2	78.4	17.13	744	8	5
HDB-VHP-200-600-I	PDF	PDF	PDF	600	486	60	49	15 to 1	200	3	15000	0.13	90	5000	0.02	62.77	50.2	78.4	17.13		12	7.5
HDB-VHP-315-630-I	PDF	PDF	PDF	630	510	63	51	10 to 1	315	2	15750	0.15	90	5250	0.02	61.9	50.2	78.4	17.13	790	8	5
HDB-VHP-225-675-I	PDF	PDF	PDF	675	547	45	36	15 to 1	225	3	16875	0.16	90	5625	0.02	72.52	50.2	78.4	17.13	875	12	7.5
HDB-VHP-350-700-I	PDF	PDF	PDF	700	567	70	57	10 to 1	350	2	17500	0.18	90	5833	0.02	61.9	50.2	78.4	17.13	794	8	5
HDB-VHP-360-720-I	PDF	PDF	PDF	720	583	72	58	10 to 1	360	2	18000	0.16	90	6000	0.02	68.4	50.2	78.4	17.13		8	5
HDB-VHP-375-750-I	PDF	PDF	PDF	750	608	75	61	10 to 1	375	2	18750	0.18	90	6250	0.02	68.4	50.2	78.4	17.13	849	8	5
HDB-VHP-250-750-I	PDF	PDF	PDF	750	608	75	61	15 to 1	250	3	18750	0.15	90	6250	0.02	72.52	50.2	78.4	17.13		12	7.5
HDB-VHP-400-800-I	PDF	PDF	PDF	800	648	80	65	10 to 1	400	2	20000	0.2	90	6667	0.02	68.4	50.2	78.4	17.13	849	8	5
HDB-VHP-270-810-I	PDF	PDF	PDF	820	664	82	66	15 to 1	270	3	20500	0.13	90	6833	0.02	82.27	50.2	78.4	17.13		12	7.5
HDB-VHP-300-900-I	PDF	PDF	PDF	900	729	60	49	15 to 1	300	3	22500	0.16	90	7500	0.02	82.27	50.2	78.4	17.13	946	12	7.5
HDB-VHP-315-945-I	PDF	PDF	PDF	945	765	63	51	15 to 1	315	3	23625	0.15	90	7875	0.02	92.02	50.2	78.4	17.13	1021	12	7.5
HDB-VHP-500-1000-I	PDF	PDF	PDF	1000	810	100	81	10 to 1	500	2	25000	0.21	90	8333	0.02	81.4	52.7	78.4	20.13	1104	10
HDB-VHP-350-1050-I	PDF	PDF	PDF	1050	851	70	57	15 to 1	350	3	26250	0.18	90	8750	0.02	92.02	50.2	78.4	17.13	926	12	7.5
HDB-VHP-360-1080-I	PDF	PDF	PDF	1080	875	108	87	15 to 1	360	3	27000	0.16	90	9000	0.02	101.77	50.2	78.4	17.13		12	7.5
HDB-VHP-375-1125-I	PDF	PDF	PDF	1125	911	112	91	15 to 1	375	3	28125	0.18	90	9375	0.02	101.77	50.2	78.4	17.13		12	7.5
HDB-VHP-600-1200-I	PDF	PDF	PDF	1200	972	120	97	10 to 1	600	2	30000	0.23	90	10000	0.03	94.4	52.7	78.4	20.13	966	10
HDB-VHP-400-1200-I	PDF	PDF	PDF	1200	972	80	65	15 to 1	400	3	30000	0.2	90	10000	0.02	101.77	50.2	78.4	17.13	1021	12	7.5
HDB-VHP-500-1500-I	PDF	PDF	PDF	1500	1215	100	81	15 to 1	500	3	37500	0.21	90	12500	0.02	121.27	52.7	78.4	20.13	1324	15	7.5
HDB-VHP-600-1800-I	PDF	PDF	PDF	1800	1458	120	97	15 to 1	600	3	45000	0.23	90	15000	0.03	140.77	52.7	78.4	20.13	1504	15	7.5

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 Number	PDF	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-VHP-225-450-I	PDF	PDF	PDF	PDF	450	360	45	36	10 to 1	225	2	16667	0.32	90	3704	0.02	48.86	47.98	78.81	17	693	8	5
HDB-VHP-250-500-I	PDF	PDF	PDF	PDF	500	400	50	40	10 to 1	250	2	18519	0.39	90	4115	0.02	48.86	47.98	78.81	17	696	8	5
HDB-VHP-270-540-I	PDF	PDF	PDF	PDF	540	432	54	43	10 to 1	270	2	20000	0.36	90	4444	0.02	55.36	47.98	78.81	17	740	8	5
HDB-VHP-300-600-I	PDF	PDF	PDF	PDF	600	480	60	48	10 to 1	300	2	22222	0.44	90	4938	0.03	55.36	47.98	78.81	17	744	8	5
HDB-VHP-315-630-I	PDF	PDF	PDF	PDF	630	504	63	50	10 to 1	315	2	23333	0.4	90	5185	0.02	61.87	47.98	78.81	17	790	8	5
HDB-VHP-225-675-I	PDF	PDF	PDF	PDF	675	540	45	36	15 to 1	225	3	25000	0.32	90	5556	0.02	65.12	47.98	78.81	17	875	12	7.5
HDB-VHP-350-700-I	PDF	PDF	PDF	PDF	700	560	70	56	10 to 1	350	2	25926	0.48	90	5761	0.03	61.87	47.98	78.81	17	794	8	5
HDB-VHP-375-750-I	PDF	PDF	PDF	PDF	750	600	75	60	10 to 1	375	2	27778	0.46	90	6173	0.03	68.37	47.98	78.81	17	849	8	5
HDB-VHP-400-800-I	PDF	PDF	PDF	PDF	800	640	80	64	10 to 1	400	2	29630	0.52	90	6584	0.03	68.37	47.98	78.81	17	849	8	5
HDB-VHP-300-900-I	PDF	PDF	PDF	PDF	900	720	60	48	15 to 1	300	3	33333	0.44	90	7407	0.03	82.24	47.98	78.81	17	946	12	7.5
HDB-VHP-315-945-I	PDF	PDF	PDF	PDF	945	756	63	50	15 to 1	315	3	35000	0.4	90	7778	0.02	91.99	47.98	78.81	17	1021	12	7.5
HDB-VHP-500-1000-I	PDF	PDF	PDF	PDF	1000	800	100	80	10 to 1	500	2	37037	0.57	75	9877	0.05	81.37	52.5	78.81	20	1104	10
HDB-VHP-250-1000-I	PDF	PDF	PDF	PDF	1000	800	50	40	20 to 1	250	4	37037	0.39	90	8230	0.02	88.74	47.98	78.81	17	1057	16	10
HDB-VHP-350-1050-I	PDF	PDF	PDF	PDF	1050	840	70	56	15 to 1	350	3	38889	0.48	90	8642	0.03	91.99	47.98	78.81	17	926	12	7.5
HDB-VHP-600-1200-I	PDF	PDF	PDF	PDF	1200	1000	120	96	10 to 1	600	2	44444	0.61	75	11852	0.05	94.37	52.5	78.81	20	966	10
HDB-VHP-400-1200-I	PDF	PDF	PDF	PDF	1200	960	80	64	15 to 1	400	3	44444	0.52	90	9877	0.03	101.74	47.98	78.81	17	1021	12	7.5
HDB-VHP-500-1500-I	PDF	PDF	PDF	PDF	1500	1200	100	80	15 to 1	500	3	55556	0.57	75	14815	0.05	121.24	52.5	78.81	20	1324	15	7.5
HDB-VHP-600-1800-I	PDF	PDF	PDF	PDF	1800	1440	120	96	15 to 1	600	3	66667	0.61	75	17778	0.05	140.74	52.5	78.81	20	1504	15	7.5

Note: For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	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-VHP-225-450-I-X2	PDF	PDF	PDF	900	720	90	72	20 to 1	225	4	33334	0.64	180	7408	0.04	48.86	90.05	78.81	17	1386	16	10
HDB-VHP-250-500-I-X2	PDF	PDF	PDF	1000	800	100	80	20 to 1	250	4	37038	0.78	180	8230	0.04	48.86	90.05	78.81	17	1392	16	10
HDB-VHP-270-540-I-X2	PDF	PDF	PDF	1080	864	108	86	20 to 1	270	4	40000	0.72	180	8888	0.04	55.36	90.05	78.81	17	1480	16	10
HDB-VHP-300-600-I-X2	PDF	PDF	PDF	1200	960	120	96	20 to 1	300	4	44444	0.88	180	9876	0.06	55.36	90.05	78.81	17	1488	16	10
HDB-VHP-315-630-I-X2	PDF	PDF	PDF	1260	1008	126	100	20 to 1	315	4	46666	0.8	180	10370	0.04	61.87	90.05	78.81	17	1580	16	10
HDB-VHP-225-675-I-X2	PDF		PDF	1350	1080	90	72	30 to 1	225	6	50000	0.64	180	11112	0.04	65.12	90.05	78.81	17	1750	24	15
HDB-VHP-350-700-I-X2	PDF	PDF	PDF	1400	1120	140	112	20 to 1	350	4	51852	0.96	180	11522	0.06	61.87	90.05	78.81	17	1588	16	10
HDB-VHP-375-750-I-X2	PDF	PDF	PDF	1500	1200	150	120	20 to 1	375	4	55556	0.92	180	12346	0.06	68.37	90.05	78.81	17	1698	16	10
HDB-VHP-400-800-I-X2	PDF	PDF	PDF	1600	1280	160	128	20 to 1	400	4	59260	1.04	180	13168	0.06	68.37	90.05	78.81	17	1698	16	10
HDB-VHP-300-900-I-X2	PDF		PDF	1800	1440	120	96	30 to 1	300	6	66666	0.88	180	14814	0.06	82.24	90.05	78.81	17	1892	24	15
HDB-VHP-315-945-I-X2	PDF		PDF	1890	1512	126	100	30 to 1	315	6	70000	0.8	180	15556	0.04	91.99	90.05	78.81	17	2042	24	15
HDB-VHP-500-1000-I-X2	PDF	PDF	PDF	2000	1600	200	160	20 to 1	500	4	74074	1.14	150	19754	0.1	81.37	99.32	78.81	20	2208	20	10
HDB-VHP-250-1000-I-X2	PDF			2000	1600	100	80	40 to 1	250	8	74074	0.78	180	16460	0.04	88.74	90.05	78.81	17	2114	32	20
HDB-VHP-350-1050-I-X2	PDF		PDF	2100	1680	140	112	30 to 1	350	6	77778	0.96	180	17284	0.06	91.99	90.05	78.81	17	1852	24	15
HDB-VHP-600-1200-I-X2	PDF	PDF	PDF	2400	2000	240	192	20 to 1	600	4	88888	1.22	150	23704	0.1	94.37	99.32	78.81	20	1932	20	10
HDB-VHP-400-1200-I-X2	PDF		PDF	2400	1920	160	128	30 to 1	400	6	88888	1.04	180	19754	0.06	101.74	90.05	78.81	17	2042	24	15
HDB-VHP-500-1500-I-X2	PDF		PDF	3000	2400	200	160	30 to 1	500	6	111112	1.14	150	29630	0.1	121.24	99.32	78.81	20	2648	30	15
HDB-VHP-600-1800-I-X2	PDF		PDF	3600	2880	240	192	30 to 1	600	6	133334	1.22	150	35556	0.1	140.74	99.32	78.81	20	3008	30	15