Nortek Global HVAC FG7T (C and L Series) Gas Furnaces

Technical Specifications

FG7T (C and L Series)

Two Stage, Fixed Speed ECM, High Efficiency Upflow/Horizontal and Downflow Gas Furnaces

Induced Draft - 95.1 AFUE

Input: 60,000 - 120,000 Btuh

The high efficiency upflow gas furnace may be installed free standing in a utility room, basement, or enclosed in an alcove or closet. Upflow/horizontal units come ready for upflow or horizontal application. The extended flush jacket provides a pleasing “appliance appearance.” Design certified by CSA for application in Canada and the United States.

FEATURES and BENEFITS

iSEER: Energy efficient brushless DC (ECM) motor gives up to 1 SEER point efficiency gain in cooling.
100% fired and tested: All units and each component are tested on the manufacturing line.
Best packaging in the industry: Unique corner post design assures product will arrive to the homeowner dent free.
30 second blower delay: At start-up assures a warm duct temperature at furnace start-up. Adjustable blower off settings (60, 90, 120 and 180 seconds).
30 second post purge: Increases life of heat exchanger.
Hot surface igniter: Innovative application of a silicon nitride type igniter. Utilizes proven Smartlite® technology.
Color coded wire harness: Designed to fit the components, all with quick-connect fittings for ease of service and replacement.
Flexible category IV venting system: May be vertically or horizontally vented using either a one-pipe or two-pipe system for maximum flexibility in installation.
High Static Blowers: All models equipped with high static blowers.
Low Boy Height: Easy to apply in low ceiling applications, works well with taller high SEER coils, easier to handle and install.
Tubular primary heat exchanger: Heavy gauge aluminized steel heat exchanger and stainless steel secondary heat exchanger assures a long life.
90 second fixed cooling cycle blower-off delay (TDR): Increases cooling performance when matched with a NORDYNE coil.
Variable speed blower kit: Upgradable to full variable speed with kit.
LP convertible: Simple burner orifice and regulator spring change for ease of convertibility.
Diagnostic lights: Dedicated light for flame signal strength and 2 lights in combination to indicate all other fault codes with easy to recognize states without counting flashes.
Incorporates Integrated control board: With connections for electronic air cleaner and humidifier.
Two piece door design: Enhances furnace appearance and uses captured screws to prevent losing door screws.
Blower Compartment: Sealed door to reduce air leakage and insulated for ultra quiet operation.
Sealed Vestibule: Reduces burner and inducer sound levels.
2 Stage Inducer: Optimizes efficiency on first stage heat and reduces sound levels.

LOCATION OF FURNACE COMPONENTS

Diagram showing the components of the Upflow/Horizontal Gas Furnace.

Upflow/Horizontal Gas Furnace Components:

Finish Flange
Flame Sensor
Pressure Switches (Inducer)
Main Air Limit Switch
Inducer Limit Switch
Inducer Assembly
Blower Door Switch
Motor Control Box
Motor Choke (C & D cabinets only)
Igniter
Gas Valve
Furnace Control Board
Pressure Switches (Condensate)
Transformer
Motor Control Board
Blower Assembly

Diagram showing the components of the Downflow Gas Furnace.

Downflow Gas Furnace Components:

Finish Flange
Furnace Control Board
Motor Control Board
Transformer
Pressure Switches
Inducer Assembly
Main Air Limit Switch
Flame Sensor
Blower Assembly (behind blower panel)
Motor Choke (C & D cabinets only)
Blower Door Switch (behind blower panel)
Vent Limit Switch
Gas Valve
Igniter
Burner Assembly
Gas Manifold

DIMENSIONS

TC 95.1% Upflow/Horizontal Furnace

Cabinet Sizes and Dimensions (inches):

Cabinet Size	Dim. "A"	Dim. "B"	Dim. "C"
'B' Cabinet	17 1/2	15 7/8	16 1/8
'C' Cabinet	21	19 3/8	19 5/8
'D' Cabinet	24 1/2	22 7/8	23 1/8

Diagram showing the front, left, top, and right side views with dimensions for the Upflow/Horizontal Furnace.

Front View Dimensions: Width: 28 inches, Height: 24 7/8 inches.

Left Side View Dimensions: Height: 34 1/2 inches, Depth: 28 inches.

Top View Dimensions: Width: 19 inches.

Right Side View Dimensions: Height: 24 7/8 inches.

TL 95.1% Downflow Furnace

Cabinet Sizes and Dimensions (inches):

Cabinet Size	Dim. "A"	Dim. "B"	Dim. "C"
'B' Cabinet	17 1/2	15 7/8	16 1/8
'C' Cabinet	21	19 3/8	19 5/8
'D' Cabinet	24 1/2	22 7/8	23 1/8

Diagram showing the front, left, top, and right side views with dimensions for the Downflow Furnace.

Front View Dimensions: Width: 28 inches, Height: 24 7/8 inches.

Left Side View Dimensions: Height: 34 1/2 inches, Depth: 28 inches.

Top View Dimensions: Width: 19 inches.

Right Side View Dimensions: Height: 24 7/8 inches.

MODEL IDENTIFICATION CODE

The model identification code provides details about the furnace configuration. Example: FG 7 T C - 080 D 24 B

FG: Gas Furnace
7: Series
T: Design Series (T = Two Stage)
C: Design Series (C = 92.1%/95.1% Upflow/Horizontal)
080: Input Heating Capacity (080 = 80,000 Btuh)
D: Design Series (D = 90+% AFUE Low NOx)
24: Cooling Airflow (24 = 2-4 Tons)
B: Cabinet Width (B = 17.50 inches)

SPECIFICATIONS

FG7TC/TL Models

MODELS NUMBERS:	-060D-24B	-080D-35C	-100D-35C	-120D-45D
Input - Btuh ^(a)	60,000 / 39,000	80,000 / 52,000	100,000 / 65,000	120,000 / 78,000
Heating Capacity - Btuh	57,000 / 37,050	76,000 / 49,400	95,000 / 61,750	114,000 / 74,100
AFUE	95.1	95.1	95.1	95.1*
Blower D x W	11 x 8	11 x 10	11 x 10	11 x 10
Motor H.P. - Speed - Type	1/2 - BLDC	3/4 - BLDC	3/4 - BLDC	1 - BLDC
Motor FLA	6.2	8.7	8.7	11.7
Rated Ext. SP - In. W.C.	0.5	0.5	0.5	0.5
Temperature Rise Range - °F	30-60	35-65	35-65	40-70
Shipping Weights	125lbs	135lbs	145lbs	160lbs

* TL 120 is 94.8% AFUE

Notes:

All models are 115V, 60 Hz. Gas Connections are 1/2" N.P.T.
AFUE = Annual Fuel Utilization Efficiency
^(a) Ratings to 2,000 ft. Over 2,000 ft. reduce 4% for each 1,000 ft. above sea level.

BLOWER PERFORMANCE - FG7TC/TL

FG7TC/TL - 95.1% AFUE, Two Stage Gas Furnace

The following tables detail blower performance across various external static pressures and motor switch settings for different model numbers and heating inputs.

TC/TL-060D - 24B (60,000 Btuh)

Model Number & Heating Input (Btuh)	External Static Pressure (in.W.C.)
Model Number & Heating Input (Btuh)	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8
Motor Switch Settings (0 = OFF, 1 = ON)	1/5 2/6 3/7 4/8 CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise
0 0 0 0	725	--	--	--	--	--	--	--
0 0 1 0	810	--	--	--	--	--	--	--
0 1 0 0	940	56	890	59	845	795	750	700
0 1 1 0	1,055	50	1,015	52	970	54	930	57
1 0 0 1	1,135	47	1,095	48	1,055	50	1,010	52
1 0 1 1	1,185	45	1,145	46	1,105	48	1,065	50
1 1 0 1	1,250	42	1,210	44	1,170	45	1,135	47
1 1 1 1	1,290	41	1,255	42	1,220	43	1,180	45
0 0 1 1	1,315	40	1,275	41	1,240	43	1,200	44
0 1 1 1	1,350	39	1,315	40	1,280	41	1,245	42
1 1 1 1	1,390	38	1,350	39	1,315	40	1,275	41
0 0 0 0	1,125	55	1,040	60	960	--	880	--
1 0 0 0	1,205	58	1,120	63	1,040	--	960	--
0 1 0 0	1,305	54	1,225	57	1,150	61	1,070	--
1 1 0 0	1,430	49	1,350	52	1,270	55	1,190	59
0 0 1 0	1,525	46	1,450	49	1,375	51	1,300	54
1 0 1 0	1,620	43	1,540	46	1,465	48	1,390	51
0 1 1 0	1,695	42	1,620	43	1,545	46	1,465	48
1 1 1 0	1,770	40	1,700	41	1,630	43	1,555	45
0 0 0 1	1,875	38	1,805	39	1,730	41	1,655	43
1 0 0 1	1,905	37	1,840	38	1,775	40	1,710	41
0 1 0 1	1,980	36	1,910	37	1,845	38	1,780	40
1 1 0 1	2,025	35	1,960	36	1,895	37	1,830	38
0 0 1 1	2,085	35	2,025	35	1,960	36	1,900	37
1 0 1 1	2,135	34	2,070	35	2,010	35	1,945	36
0 1 1 1	2,200	34	2,145	34	2,090	35	2,035	35
1 1 1 1	2,280	33	2,225	34	2,170	34	2,115	35

TC/TL-80D - 35C (80,000 Btuh)

Model Number & Heating Input (Btuh)	External Static Pressure (in.W.C.)
Model Number & Heating Input (Btuh)	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8
Motor Switch Settings (0 = OFF, 1 = ON)	1/5 2/6 3/7 4/8 CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise
0 0 0 0	1,125	--	1,040	--	--	--	--	--
1 0 0 0	1,205	--	1,120	--	1,040	--	--	--
0 1 0 0	1,305	62	1,225	65	1,150	68	1,070	--
1 1 0 0	1,430	62	1,350	65	1,270	68	1,190	71
0 0 1 0	1,525	58	1,450	61	1,375	64	1,300	67
1 0 1 0	1,620	54	1,540	57	1,465	60	1,390	63
0 1 1 0	1,695	52	1,620	54	1,545	57	1,465	60
1 1 1 0	1,770	50	1,700	52	1,630	54	1,555	57
0 0 0 1	1,875	47	1,805	49	1,730	51	1,655	53
1 0 0 1	1,905	46	1,840	48	1,775	50	1,710	51
0 1 0 1	1,980	44	1,910	46	1,845	48	1,780	49
1 1 0 1	2,025	43	1,960	45	1,895	46	1,830	48
0 0 1 1	2,085	42	2,025	43	1,960	45	1,900	46
1 0 1 1	2,135	41	2,070	42	2,010	44	1,945	45
0 1 1 1	2,200	40	2,145	41	2,090	42	2,035	43
1 1 1 1	2,280	39	2,225	40	2,170	41	2,115	42

TC/TL-100D - 35C (100,000 Btuh)

Model Number & Heating Input (Btuh)	External Static Pressure (in.W.C.)
Model Number & Heating Input (Btuh)	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8
Motor Switch Settings (0 = OFF, 1 = ON)	1/5 2/6 3/7 4/8 CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise
0 0 0 0	1,395	--	1,350	--	1,305	--	1,260	--
1 0 0 0	1,465	--	1,420	--	1,375	--	1,330	--
0 1 0 0	1,555	68	1,510	70	1,470	72	1,425	74
1 1 0 0	1,625	65	1,585	67	1,540	69	1,500	70
0 0 1 0	1,690	62	1,650	64	1,610	66	1,570	67
1 0 1 0	1,760	60	1,715	62	1,670	63	1,625	65
0 1 1 0	1,835	58	1,790	59	1,745	60	1,695	62
1 1 1 0	1,885	56	1,840	57	1,790	59	1,745	60
0 0 0 1	1,945	54	1,900	56	1,850	57	1,805	58
1 0 0 1	1,950	54	1,905	55	1,860	57	1,810	58
0 1 0 1	2,075	51	2,030	52	1,990	53	1,945	54
1 1 0 1	2,125	50	2,085	51	2,040	52	2,000	53
0 0 1 1	2,170	49	2,130	50	2,090	51	2,045	52
1 0 1 1	2,215	48	2,180	48	2,140	49	2,105	50
0 1 1 1	2,225	47	2,165	49	2,100	50	2,040	52
1 1 1 1	2,280	47	2,225	48	2,170	49	2,115	50

TC/TL-120D - 45D (120,000 Btuh)

Model Number & Heating Input (Btuh)	External Static Pressure (in.W.C.)
Model Number & Heating Input (Btuh)	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8
Motor Switch Settings (0 = OFF, 1 = ON)	1/5 2/6 3/7 4/8 CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise	CFM Rise
0 0 0 0	1,125	--	1,040	--	--	--	--	--
1 0 0 0	1,205	--	1,120	--	1,040	--	--	--
0 1 0 0	1,305	65	1,225	68	1,150	70	1,070	--
1 1 0 0	1,430	62	1,350	65	1,270	68	1,190	71
0 0 1 0	1,525	58	1,450	61	1,375	64	1,300	67
1 0 1 0	1,620	54	1,540	57	1,465	60	1,390	63
0 1 1 0	1,695	52	1,620	54	1,545	57	1,465	60
1 1 1 0	1,770	50	1,700	52	1,630	54	1,555	57
0 0 0 1	1,875	47	1,805	49	1,730	51	1,655	53
1 0 0 1	1,905	46	1,840	48	1,775	50	1,710	51
0 1 0 1	1,980	44	1,910	46	1,845	48	1,780	49
1 1 0 1	2,025	43	1,960	45	1,895	46	1,830	48
0 0 1 1	2,085	42	2,025	43	1,960	45	1,900	46
1 0 1 1	2,135	41	2,070	42	2,010	44	1,945	45
0 1 1 1	2,200	40	2,145	41	2,090	42	2,035	43
1 1 1 1	2,280	39	2,225	40	2,170	41	2,115	42

Notes on Blower Performance Tables:

Motor Switch Settings are for heating speeds using HEAT switches 1, 2, 3, & 4 and cooling speeds using COOL switches 5, 6, 7, & 8.
Two openings are recommended for airflows above 1,600 CFM if the filter(s) is (are) adjacent to the furnace.
Data is shown without filter.
Temperature rises in the table are approximate. Actual temperature rises may vary.
Cells shaded in gray indicate a temperature rise outside of the recommended range.
When in low stage, the circulating airflow is 70% of the table's high value (2-stage furnaces only).

VENTING

All models are approved for vertical non direct (1 pipe) and direct (2 pipe) venting applications. See Vent Table below for specified sizes and allowable lengths.

VENT TABLE

FURNACE MODELS (BTU)	FURNACE INSTALLATION	SINGLE PIPE LENGTH (FT.) with 1 long radius elbow**		DIRECT VENT, DUAL PIPE LENGTH (ft.) WITH 1 long radius elbow on each pipe**
FURNACE MODELS (BTU)	FURNACE INSTALLATION	2" Diameter	3" Diameter	INLET/OUTLET	INLET/OUTLET
60,000	Upflow	90	90	90	90
	Horizontal	50	90	50	90
	Downflow	30	90	30	90
80,000	Upflow	40	90	40	90
	Horizontal	30	90	30	90
	Downflow	30	90	30	90
100,000	Upflow	30	90	30	90
	Horizontal	30	90	30	90
	Downflow	30	90	25	90
120,000	Upflow	N/A	90	N/A	90
	Horizontal	N/A	90	N/A	90
	Downflow	N/A	90	N/A	90

NOTES:

Subtract 2.5 ft. for each additional 2 inch long radius elbow, 5 ft. for each additional 2 inch short radius elbow, 3.5 ft. for each additional 3 inch long radius elbow, and 7 ft. for each additional 3 inch short radius elbow. Subtract 5ft for each 2" tee and 8ft for each 3" tee.
Two 45 degree elbows are equivalent to one 90 degree elbow.
This table applies for elevations from sea level to 2,000 ft. For higher elevations, decrease pipe lengths by 8% per 1,000 ft of altitude.

ACCESSORIES

FG7TC/TL KITS

Description	SKU
Fixed speed -to- variable speed	904880
2" Concentric vent kit	904952
3" Concentric vent kit	904953
"A" Cabinet downflow sub base kit	902974
"B", "C", "D" Cabinet downflow sub base kit	904911
2" Side wall vent kit	904617
3" Side wall vent kit	904347
U.S. LP Conversion kit (0 to 10,000 ft.)	904914
Canada LP Conversion kit (0 to 4,500 ft.)	904915
Bottom return filter 20 per box, "A" cabinet	903088
Bottom return filter 20 per box, "B" cabinet	904916
Bottom return filter 20 per box, "C" cabinet	904917
Bottom return filter 20 per box, "D" cabinet	904918
Side return filter kit	541036
Neutralizer kit	902377

GENERAL TERMS OF LIMITED WARRANTY

Nortek Global HVAC, LLC will furnish a replacement for any part of this product which fails in normal use and service within the terms and conditions of the warranty.

For complete details of the Limited Warranty, including applicable terms and conditions, see your local installer or contact the Nortek Global HVAC, LLC warranty department for a copy.

Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. Specifications and illustrations subject to change without notice and without incurring obligations. Printed in U.S.A (02/2016)

217D-0216 (Replaces 217D-0514)

Certifications and Affiliations: CSA Certified, NATE Certified, ENERGY STAR Partner, NAHB Member, HRAI Member Company.

Google Docs
Google Drive
Download [pdf]

File Info : application/pdf, 8 Pages, 1.05MB

217d Adobe PDF Library 9.9 Adobe InDesign CS5.5 (7.5)

	Nortek G8SD Series Gas Furnaces: Technical Specifications and Airflow Data Detailed technical specifications, features, benefits, dimensions, components, model identification, and airflow data for the Nortek G8SD Series Single Stage Upflow/Horizontal Gas Furnaces.
	Nortek Global HVAC G8SA Series Gas Furnace Technical Specifications Detailed technical specifications and features for the Nortek Global HVAC G8SA Series single-stage upflow/horizontal gas furnaces, including ultra-low NOx emissions, AFUE ratings, dimensions, and airflow data.
	B6BV Series Air Handler Technical Specifications and Features Detailed technical specifications, features, benefits, electrical data, dimensions, and blower performance data for the B6BV Series Air Handler by Nortek Global HVAC.
	Nortek Global HVAC KG7TC Series Smartlite Gas Furnaces: Technical Specifications Comprehensive technical specifications, features, and installation guidelines for Nortek Global HVAC's KG7TC Series Smartlite gas furnaces, highlighting AFUE ratings, ECM blower technology, and model details.
	KG7S Series High Efficiency Gas Furnaces Technical Specifications Detailed technical specifications, features, benefits, and performance data for the KG7S Series High Efficiency Upflow/Horizontal and Downflow Gas Furnaces by Nortek Global HVAC. Includes model identification, dimensions, airflow data, and accessories.
	M7RL & M7TL Downflow Condensing Gas Furnace User Manual \| Nortek Global HVAC User manual for Nortek Global HVAC M7RL (Single Stage) and M7TL (Two Stage) downflow condensing gas furnaces (95+% AFUE). Covers safety, installation, operation, maintenance, troubleshooting, and components.
	MG2S Series Downflow Condensing Gas Furnace User Manual User manual for the MG2S Series Downflow Condensing Gas Furnace, covering safe operation, installation, maintenance, and troubleshooting for high-efficiency heating in manufactured homes and RVs.
	VG8SD Ultra-Low NOx Series Gas Furnace Replacement Parts List \| Nortek Global HVAC Comprehensive replacement parts list for Nortek Global HVAC's VG8SD Ultra-Low NOx Series single-stage, condensing gas furnaces (95% AFUE). Includes part numbers and diagrams for models VG8SD-050U-T23A, VG8SD-070U-T24B, and VG8SD-100U-T35C.