58CTA - WeatherMaker Two Stage Gas Furnaces 80% AFUE Physical Data

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58CTA Performance 80

Performance 80
58CTA Gas-Fired Furnaces
Up to 80% AFUE

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Performance and Sizing Information

58CTA

Size	Rated Heating Input (Btuh)* Upflow/Downflow-Horizontal		Rated Heating Output (Btuh)* Upflow/Downflow-Horizontal		AFUE* %	Selectable Cooling CFM @ 0.5 ESP Max./Min.†	Vent Dia (in.)	Casing Width (in.)	Approx Ship Weight (lbs)
Size	High Stage	Low Stage	High Stage	Low Stage	AFUE* %	Selectable Cooling CFM @ 0.5 ESP Max./Min.†	Vent Dia (in.)	Casing Width (in.)	Approx Ship Weight (lbs)
045–1-08	44,000	29,000	35,000	23,000	80.0	845/555	4	14 3/16	116
045–1-12	44,000	29,000	36,000	23,000	80.0	1175/745	4	14 3/16	119
070–1-08	66,000	43,500	54,000	36,000	80.0	900/550	4	14 3/16	120
070–1-12	66,000	43,500	54,000	36,000	80.0	1240/670	4	14 3/16	124
070–1-16	66,000	43,500	tba	tba	80.0	tba	4	17 1/2	138
090–1-14	88,000	58,000	71,000	47,000	80.0	1385/1065	4	17 1/2	136
090–1-16	88,000	58,000	71,000	47,000	80.0	1720/940	4	21	151
090–1-20	88,000	58,000	tba	tba	80.0	tba	4	21	156
110–1-12	110,000	72,500	89,000	59,000	80.0	1355/1065	4	17 1/2	144
110–1-16	110,000	72,500	89,000	59,000	80.0	1695/935	4	21	158
110–1-22	110,000	72,500	89,000	59,000	80.0	2220/1200	4	21	163
135–1-16	132,000	87,000	107,000	70,000	80.0	1710/1210	5‡	21	163
135–1-22	132,000	87,000	107,000	70,000	80.0	2110/1530	5‡	24 1/2	174
155–1-20	154,000	101,500	124,000	82,000	80.0	2230/1495	5‡	24 1/2	181

* Capacity and ratings in accordance with U.S. Government DOE test procedures with isolated combustion system. De-rate heating input in high fire (only ) for downflow and horizontal applications by 1,000 Btuh per burner.
† Listed CFM is for single-speed cooling.
‡ 4-inch vent connection in all funaces.

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