BROAN KG7T Downflow Gas Furnace Owner’s Manual

: June 15, 2024
: Broan

Table of Contents

IMPORTANT INFORAMTIONS
FEATURES and BENEFITS
LOCATION OF FURNACE COMPONENTS
DIMENSIONS
MODEL IDENTIFICATION CODE
SPECIFICATIONS
BLOWER PERFORMANCE – KG7TE/TN
VENTING
ACCESSORIES
Feature
CUSTOMER SERVICES
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BROAN KG7T E and N Series Downflow Gas Furnace

IMPORTANT INFORAMTIONS

Two Stage, Fixed Speed ECM, Condensing Upflow and Downflow Gas Furnaces Induced Draft – 96% AFUE Input 60,000 – 115,000 Btuh.

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

FEATURES and BENEFITS

Energy efficient brushless DC (ECM) motor: Can give up to 1 SEER point efficiency gain in cooling.
100% Fired and Tested: All units and each component are tested on the manufacturing line.
B est 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 ECM blowers, with 16 speeds for heating & cooling.
Low Boy Height: Easy to apply in low ceiling applications, works well with taller high SEER coils, easier to handle and install.
Heat Exchanger: Heavy gauge aluminized steel primary 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 Nortek Global HVAC 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 (as an accessory).
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.
Integrated Control Boards: With connections for electronic air cleaner, humidifier, and dehumidification.
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.
Furnace Air Leakage: These furnaces comply with Energy Star cabinet air leakage requirement of less than or equal to 2%. Keep the conditioned air flowing to where it’s needed.

LOCATION OF FURNACE COMPONENTS

DIMENSIONS

*TE 96% Upflow Furnace

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

NOTES:
Dimensions shown in inches.

*TN 96% Downflow Furnace

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
NOTES:

Dimensions shown in inches.

MODEL IDENTIFICATION CODE

SPECIFICATIONS

KG7TE/TN MODEL NUMBERS:| -060D-24B1| -080D-35C1| -100D- 35C1| -115D-45D1
---|---|---|---|---
Input – Btuh (a)| 60,000 / 39,000| 80,000 / 52,000| 100,000 / 65,000| 115,000 / 74,750
Heating Capacity – Btuh| 57,600 / 37,440| 76,800 / 49,920| 96,000 / 62,400| 110,400 / 71,760
AFUE| 96| 96| 96| 96
Motor FLA| 6.2| 8.7| 8.7| 11.70
Rated Ext. SP – In. W.C.| 0.5| 0.5| 0.5| 0.5
Temperature Rise Range – ºF| 30-60| 35-65| 35-65| 40-70
Shipping Weights| 125lbs| 135lbs| 145lbs| 160lbs

Note:
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 – KG7TE/TN

KG7TE/TN – 96% AFUE, Two Stage Gas Furnace

MODEL NUMBER & HEATING INPUT **(BTUH)| MOTOR SWITCH SETTINGS (0 = OFF, 1 = ON)| ExTERNAL STATIC PRESSURE (IN.W.C.)
0.1| 0.2| 0.3| 0.4| 0.5| 0.6| 0.7| 0.8
1/5| 2/6| 3/7| 4/8| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE
**TE/TN – 060D – 24B1 (60,000 BTUH) TEMPERATURE

RISE 30° F TO 60° F

| 0| 0| 0| 0| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —
1| 0| 0| 0| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —
0| 1| 0| 0| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —
1| 1| 0| 0| 725| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —
0| 0| 1| 0| 810| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —
1| 0| 1| 0| 940| 57| 890| 60| 845| —| 795| —| 750| —| 700| —| —| —| —| —
0| 1| 1| 0| 990| 54| 945| 56| 905| 59| 860| —| 820| —| 775| —| 735| —| 690| —
1| 1| 1| 0| 1,055| 51| 1,015| 53| 970| 55| 930| 57| 890| 60| 845| —| 805| —| 760| —
0| 0| 0| 1| 1,135| 47| 1,095| 49| 1,055| 51| 1,010| 53| 960| 56| 930| 57| 890| 60| 850| —
1| 0| 0| 1| 1,185| 45| 1,145| 47| 1,105| 48| 1,065| 50| 1,030| 52| 990| 54| 950| 56| 910| 59
0| 1| 0| 1| 1,250| 43| 1,210| 44| 1,170| 46| 1,135| 47| 1,095| 49| 1,055| 51| 1,020| 52| 980| 54
1| 1| 0| 1| 1,290| 41| 1,255| 42| 1,220| 44| 1,180| 45| 1,145| 47| 1,110| 48| 1,075| 50| 1,040| 51
0| 0| 1| 1| 1,315| 41| 1,275| 42| 1,240| 43| 1,200| 44| 1,160| 46| 1,120| 48| 1,085| 49| 1,045| 51
1| 0| 1| 1| 1,350| 40| 1,315| 41| 1,280| 42| 1,245| 43| 1,205| 44| 1,170| 46| 1,135| 47| 1,100| 48
0| 1| 1| 1| 1,390| 38| 1,350| 40| 1,315| 41| 1,275| 42| 1,240| 43| 1,200| 44| 1,160| 46| 1,125| 47
1| 1| 1| 1| 1,420| 38| 1,380| 39| 1,345| 40| 1,310| 41| 1,270| 42| 1,235| 43| 1,200| 44| 1,160| 46
TE/TN – 80D – 35C1 (80,000 BTUH) TEMPERATURE RISE 35° F TO 65° F| 0| 0| 0| 0| 1,125| 63| 1,040| —| 960| —| 880| —| 795| —| —| —| —| —| —| —
1| 0| 0| 0| 1,205| 59| 1,120| 63| 1,040| —| 960| —| 875| —| 795| —| —| —| —| —
0| 1| 0| 0| 1,305| 54| 1,225| 58| 1,150| 62| 1,070| —| 995| —| 915| —| 840| —| —| —
1| 1| 0| 0| 1,430| 50| 1,350| 53| 1,270| 56| 1,190| 60| 1,110| 63| 1,030| —| 950| —| 865| —
0| 0| 1| 0| 1,525| 47| 1,450| 49| 1,375| 52| 1,300| 55| 1,225| 57| 1,150| 62| 1,075| 66| 1,000| —
1| 0| 1| 0| 1,620| 44| 1,540| 46| 1,465| 49| 1,390| 51| 1,315| 54| 1,240| 57| 1,165| 61| 1,090| 65
0| 1| 1| 0| 1,695| 42| 1,620| 44| 1,545| 46| 1,465| 49| 1,390| 51| 1,315| 54| 1,235| 58| 1,160| 61
1| 1| 1| 0| 1,770| 40| 1,700| 42| 1,630| 44| 1,555| 46| 1,485| 47| 1,410| 50| 1,340| 53| 1,265| 56
0| 0| 0| 1| 1,875| 38| 1,805| 39| 1,730| 41| 1,655| 43| 1,580| 45| 1,510| 47| 1,435| 50| 1,340| 53
1| 0| 0| 1| 1,905| 37| 1,840| 39| 1,775| 40| 1,710| 42| 1,640| 43| 1,575| 45| 1,510| 47| 1,445| 49
0| 1| 0| 1| 1,980| 36| 1,910| 37| 1,845| 39| 1,780| 40| 1,715| 41| 1,650| 43| 1,580| 45| 1,515| 47
1| 1| 0| 1| 2,025| 35| 1,960| 36| 1,895| 38| 1,830| 39| 1,765| 40| 1,700| 42| 1,635| 43| 1,570| 45
0| 0| 1| 1| 2,085| —| 2,025| 35| 1,960| 36| 1,900| 37| 1,840| 38| 1,775| 40| 1,715| 41| 1,655| 43
1| 0| 1| 1| 2,135| —| 2,070| —| 2,010| 35| 1,945| 37| 1,880| 37| 1,815| 39| 1,750| 41| 1,685| 42
0| 1| 1| 1| 2,200| —| 2,145| —| 2,090| —| 2,035| 35| 1,980| 36| 1,925| 37| 1,870| 38| 1,820| 39
1| 1| 1| 1| 2,280| —| 2,225| —| 2,170| —| 2,115| —| 2,065| —| 2,010| —| 1,955| 36| 1,900| 37

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 required 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 tables high value (2-stage furnaces only).

KG7TE/TN – 96% AFUE, Two Stage Gas Furnace

MODEL NUMBER & HEATINGINPUT **(BTUH)| MOTOR SWITCH SETTINGS (0 = OFF, 1 = ON)| ExTERNAL STATIC PRESSURE (IN.W.C.)
0.1| 0.2| 0.3| 0.4| 0.5| 0.6| 0.7| 0.8
1/5| 2/6| 3/7| 4/8| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE| CFM| RISE
**TE/TN – 100D – 35C1 (100,000 BTUH) TEMPERATURE RISE 35° F TO 65° F| 0| 0| 0| 0| 1,125| —| 1,040| —| —| —| —| —| —| —| —| —| —| —| —| —
1| 0| 0| 0| 1,205| —| 1,120| —| 1,040| —| —| —| —| —| —| —| —| —| —| —
0| 1| 0| 0| 1,305| —| 1,225| —| 1,150| —| 1,070| —| 995| —| —| —| —| —| —| —
1| 1| 0| 0| 1,430| 62| 1,350| 66| 1,270| —| 1,190| —| 1,110| —| 1,030| —| —| —| —| —
0| 0| 1| 0| 1,525| 58| 1,450| 61| 1,375| 65| 1,300| —| 1,225| —| 1,150| —| 1,075| —| 1,000| —
1| 0| 1| 0| 1,620| 55| 1,540| 58| 1,465| 61| 1,390| 64| 1,315| —| 1,240| —| 1,165| —| 1,090| —
0| 1| 1| 0| 1,695| 52| 1,620| 55| 1,545| 58| 1,465| 61| 1,390| 64| 1,315| —| 1,235| —| 1,160| —
1| 1| 1| 0| 1,770| 50| 1,700| 52| 1,630| 55| 1,555| 57| 1,485| 60| 1,410| 63| 1,340| —| 1,265| —
0| 0| 0| 1| 1,875| 47| 1,805| 49| 1,730| 51| 1,655| 54| 1,580| 56| 1,510| 59| 1,435| 62| 1,340| —
1| 0| 0| 1| 1,905| 47| 1,840| 48| 1,775| 50| 1,710| 52| 1,640| 54| 1,575| 56| 1,510| 59| 1,445| 62
0| 1| 0| 1| 1,980| 45| 1,910| 47| 1,845| 48| 1,780| 50| 1,715| 52| 1,650| 54| 1,580| 56| 1,515| 59
1| 1| 0| 1| 2,025| 44| 1,960| 45| 1,895| 47| 1,830| 49| 1,765| 50| 1,700| 52| 1,635| 54| 1,570| 57
0| 0| 1| 1| 2,085| 43| 2,025| 44| 1,960| 45| 1,900| 47| 1,840| 48| 1,775| 50| 1,715| 52| 1,655| 54
1| 0| 1| 1| 2,135| 42| 2,070| 43| 2,010| 44| 1,945| 46| 1,880| 47| 1,815| 49| 1,750| 51| 1,685| 53
0| 1| 1| 1| 2,200| 40| 2,145| 41| 2,090| 43| 2,035| 44| 1,980| 45| 1,925| 46| 1,870| 48| 1,820| 49
1| 1| 1| 1| 2,280| 39| 2,225| 40| 2,170| 41| 2,115| 42| 2,065| 43| 2,010| 44| 1,955| 45| 1,900| 47
TE/TN – 115D – 45D1 (115,000 BTUH) TEMPERATURE RISE 40° F TO 70° F| 0| 0| 0| 0| 1,395| —| 1,350| —| 1,305| —| 1,260| —| 1,210| —| 1,165| —| 1,120| —| —| —
1| 0| 0| 0| 1,465| —| 1,420| —| 1,375| —| 1,330| —| 1,290| —| 1,245| —| 1,200| —| 1,155| —
0| 1| 0| 0| 1,555| 66| 1,510| 68| 1,470| —| 1,425| —| 1,380| —| 1,340| —| 1,295| —| 1,250| —
1| 1| 0| 0| 1,625| 63| 1,585| 64| 1,540| 66| 1,500| 68| 1,460| —| 1,415| —| 1,375| —| 1,335| —
0| 0| 1| 0| 1,690| 60| 1,650| 62| 1,610| 63| 1,570| 65| 1,530| 67| 1,485| —| 1,445| —| 1,405| —
1| 0| 1| 0| 1,760| 58| 1,715| 60| 1,670| 61| 1,625| 63| 1,575| 65| 1,530| 67| 1,485| —| 1,440| —
0| 1| 1| 0| 1,835| 56| 1,790| 57| 1,745| 59| 1,695| 60| 1,650| 62| 1,605| 64| 1,555| 66| 1,510| 68
1| 1| 1| 0| 1,885| 54| 1,840| 56| 1,790| 57| 1,745| 59| 1,700| 60| 1,655| 62| 1,610| 63| 1,565| 65
0| 0| 0| 1| 1,945| 53| 1,900| 54| 1,850| 55| 1,805| 57| 1,760| 58| 1,710| 60| 1,665| 61| 1,620| 63
1| 0| 0| 1| 1,950| 52| 1,905| 54| 1,860| 55| 1,820| 56| 1,775| 58| 1,735| 59| 1,690| 60| 1,650| 62
0| 1| 0| 1| 2,075| 49| 2,030| 50| 1,990| 51| 1,945| 53| 1,900| 54| 1,855| 55| 1,810| 56| 1,770| 58
1| 1| 0| 1| 2,125| 48| 2,085| 49| 2,040| 50| 2,000| 51| 1,955| 52| 1,910| 54| 1,870| 55| 1,825| 56
0| 0| 1| 1| 2,170| 47| 2,130| 48| 2,090| 49| 2,045| 50| 2,005| 51| 1,965| 52| 1,925| 53| 1,880| 54
1| 0| 1| 1| 2,215| 46| 2,180| 47| 2,140| 48| 2,105| 49| 2,070| 49| 2,035| 50| 2,000| 51| 1,965| 52
0| 1| 1| 1| —| —| —| —| —| —| —| —| 2,225| 46| 2,165| 47| 2,100| 49| 2,040| 50
1| 1| 1| 1| —| —| —| —| —| —| —| —| —| —| 2,170| 47| 2,120| 48| 2,065| 50

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 required 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 tables 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.

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**
---|---|---|---
OUTLET| OUTLET| INLET/OUTLET| INLET/OUTLET
2” Diameter| 3” Diameter| 2” Diameter| 3” Diameter
60,000| Upflow| 90| 90| 60| 90
Downflow| 30| 90| 30| 90
80,000| Upflow| 40| 90| 40| 90
Downflow| 30| 90| 30| 90
100,000| Upflow| 30| 90| 30| 90
Downflow| 30| 90| 25| 90
115,000| Upflow| 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

KG7TE/TN KITS

Feature

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 (06/2017)