Roberts Gorden UHD[X][S][R] 225, UHD[X][S][R] 300, UHD[X][S][R] 250 General Technical Data Table

UHD STANDARD DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

15.2 General Technical Data Table

		UHD	UHD	UHD	UHD	UHD	UHD	UHD	UHD
		[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]
	Model	150	175	200	225	250	300	350	400
Full Load Amps @ 115 V	A	2	2	2	2	2	2	6	6
Minimum Air Volume	CFM	1360	1400	2050	2100	2350	2700	3120	3420
Temperature Rise @	°F	83	95	73	80	80	86	86	86
Minimum Air Volume	(°C)	(28)	(35)	(23)	(27)	(27)	(30)	(30)	(30)
Heat Exchanger Pressure
Drop @ Minimum Air Volume	in wc	0.02	0.03	0.025	0.035	0.05	0.02	0.03	0.04
Maximum Air Volume	CFM	5800	6850	7750	8300	8850	10200	13600	14200
Temperature Rise @	°F	20	20	20	20	22	23	22	22
Maximum Air Volume	(°C)	(7)	(7)	(7)	(7)	(6)	(5)	(6)	(6)
Heat Exchanger Pressure
Drop @Maximum Air Volume	in wc	0.16	0.29	0.163	0.253	0.35	0.27	0.48	0.53
Flue Size*	in				4 - All Models
	(cm)				(10)
Air Intake*	in	4	4	4	4	4	5	5	5
	(cm)	(10)	(10)	(10)	(10)	(10)	(13)	(13)	(13)

* Do not exceed the maximum length of flue stated or heater may not operate properly.

15.3 Technical Data Table

		UHD	UHD	UHD	UHD	UHD	UHD	UHD	UHD
	Model	[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]	[X][S][R]]	[X][S][R]
		150	175	200	225	250	300	350	400
Total Input	(Btu/h) x (1000)	150	175	200	225	250	300	350	385
Total Output	(Btu/h) x (1000)	123	143.5	164	184.5	205	246	287	315.7
Efficiency	%				82 - All Models
Natural Gas (G20) Data - Inlet Pressure 5.0 in wc Min., 14 in wc Max.
Burner Pressure	in wc	3.2	3.4	3.7	3.7	4.0	2.7	2.7	3.3
LPG / Propane (G31) Data - Inlet Pressure 12.0 in wc Min., 14 in wc Max.
Burner Pressure	in wc	9.9	10.4	10.5	10.7	10.5	9.4	9.3	11.1

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