NuTone KG7T Two Stage Fixed Speed Gas Furnace User Manual

KG7T Two Stage Fixed Speed Gas Furnace
User Manual

KG7T Two Stage Fixed Speed Gas Furnace

TECHNICAL SPECIFICATIONS
KG7T (C and L Series)
Two Stage, Fixed Speed,
Condensing 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.

WARRANTY

–10Yearall-partswarranty.

–1Year Quality Pledge to replace the unit if the heat exchangerfailswithinthefirst1yearofoperation,to the original owner.
— Consumer product registration required for 10 year All Parts Warranty and Quality Pledge within a limited period of time after the installation. See current warranty document or visit our consumer web site listed on the back of this document for warranty details.
— When registered, this product is upgraded to a limited lifetime heat exchanger warranty.

FEATURES and BENEFITS

• 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 an appliance type igniter with a 20 year history of reliability. Utilizes proven Smartlife® 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 for easy troubleshooting without counting flashes: 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.
• Sealed vestibule: Reduces burner and inducer sound levels.
• Energy efficient brushless DC (ECM) motor: Gives up to 1 SEER point efficiency gain in cooling.

LOCATION OF FURNACE COMPONENTS

DIMENSIONS

MODEL IDENTIFICATION CODE

SPECIFICATIONS

KG7TC/TL MODEL NUMBERS:| -060D-23B| -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 – ºF| 30-60| 35-65| 35-65| 40-70
Shipping Weights| 125lbs| 135lbs| 145lbs| 160lbs

*TL 120 is 94.8% AFUE
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 – KG7TC/TL

Notes:

1. Motor Switch Settings are for heating speeds using HEAT switches 1, 2, 3, & 4 and cooling speeds using COOL switches 5, 6, 7, & 8.
2. Two openings are recommended for airflows above 1600 CFM if the filter(s) is (are) adjacent to the furnace.
3. Data is shown without filter.
4. Temperature rises in the table are approximate. Actual temperature rises may vary.
5. Temperature rises that are shaded in grey are for reference only. These conditions are not recommended.

Notes:

1. Motor Switch Settings are for heating speeds using HEAT switches 1, 2, 3, & 4 and cooling speeds using COOL switches 5, 6, 7, & 8.
2. Two openings are recommended for airflows above 1600 CFM if the filter(s) is (are) adjacent to the furnace.
3. Data is shown without filter.
4. Temperature rises in the table are approximate. Actual temperature rises may vary.
5. Temperature rises that are shaded in grey are for reference only. These conditions are not recommended.

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**
---|---|---|---
OUTLET| OUTLET| INLET/OUTLET| INLET/OUTLET
2” Diameter| 3” Diameter| 2” Diameter| 3” Diameter
60,000| Upflow| 90| 90| 90| 90
Horizontal| 50| 90| 50| 90
Downflow| 30| 90| 30| 90
80,000| Upflow| 90| 90| 90| 90
Horizontal| 30| 90| 30| 90
Downflow| 30| 90| 30| 90
100,000| Upflow| 60| 90| 60| 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:

1. 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.
2. Two 45 degree elbows are equivalent to one 90 degree elbow.
3. 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

KG7TC/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
NORDYNE will furnish a replacement for any part of this product which fails in normal use and service within the first ten years of installation, in accordance with the terms of the warranty.
For complete details of the Limited Warranty, including applicable terms and conditions, see your local installer or contact the NORDYNE warranty department for a copy.

8000 Phoenix Parkway | O’Fallon, MO 63368-3827
Specifications and illustrations subject to change without notice
and without incurring obligations. Printed in U.S.A (07/2011)
835C-0711 (Replaces 835C-0211)
www.nutonehvac.com
NuTone® trademark used under license.
© Nortek Global HVAC, LLC. All Rights Reserved.

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