TECHNICAL GUIDE
Echelon
MODELS: FC8T/LC8T
GAS-FIRED
HIGH EFFICIENCY TWO STAGE
UPFLOW/HORIZONTAL FURNACES
STANDARD & LoNOx
80% AFUE
NATURAL GAS
60 - 120 MBH INPUT
EFFICIENCY
RATING
CERTIFIED
This product was manufactured
in a plant whose quality system
is certified/registered as being
in conformity with ISO 9001.
Due to continuous product improvement, specific ations
are subject to change without notice.
Visit us on the web at www.york.com for the most
up-to-date technical information.
Additional rating information can be found at
www.gamanet.org.
036-21603-002 Rev. A (1004)
DESCRIPTION
These high efficiency, compact units employ induced combustion, reliable hot surface ignition and high heat transfer
tubular heat exchangers. The units are factory shipped for
installation in upflow or horizontal applications.
These furnaces are designed for residential installation in a
basement, closet, alcove, attic, recreation room or garage
and are also ideal for commercial applications. All units are
factory assembled, wired and tested to assure safe dependable and economical installation and operation.
These units are Category I listed and may be common
vented with another gas appliance as allowed by the
National Fuel Gas Code.
WARRANTY
20-year limited warranty on the heat exchanger.
10-year heat exchanger warranty on commercial applications.
5-year limited parts warranty.
FEATURES
• Two stage heating operation includes:
- Two stage gas valve
- Two stage inducer operation
• Provides increased comfort level & very quiet unit operation
• Adjustable delay timer allows two stage operation with
single stage thermostat
• Compact, easy to install, ideal height 40" cabinet
• Blower-off delay for cooling SEER improvement.
• Easy to connect power/control wiring.
• Built-in, high level self diagnostics with fault code display.
• Low unit amp requirement for easy replacement applica-
tion.
• Integrated control module for reliable, economical opera-
tion.
• High velocity filter and side -return filter rack provided for
easy field installation.
• Electronic Hot Surface Ignition saves fuel cost with
increased dependability and reliability.
• Induced combustion system with inshot main burners for
quiet, efficient operation.
• 100% shut off main gas valve for extra safety.
• PSC -four speed, direct drive motor with large, quiet
blower.
• 24V, 40 VA control transformer and blower relay supplied
for add-on cooling.
• Hi-tech tubular aluminized steel primary heat exchanger.
• Timed on, adjustable off blower capability for maximum
comfort.
• Solid removable bottom panel allows easy application.
• Easy access from front of unit for cleaning, maintenance
or service.
• Insulated blower compartment for quiet operation.
• Independent door removal for greater durability and ease
of access.
• LoNOx models have been designed to meet specific code
requirements.
• LoNOx models may not be converted to propane.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
036-21603-002 Rev. A (1004)
A
FRONT
BOTTOM IMAGE
RETURN END
CABINET AND DUCT DIMENSIONS
26-3/4
20
13-3/4
40
1-3/8
1-1/4
C
D
4” Diameter
GAS INLET
1-1/4 x 2-1/2
30-1/8
LEFT SIDE
20
24-3/4
TOP IMAGE
SUPPLY END
D
(VENT CONNECTIONS)
POWER WIRING
7/8” HOLE
2-1/2
32-1/2
ACCESS
WIRING
7/8” K.O.
16
8-3/4
T’STAT WIRING
7/8” K.O.
5/8
5/8
B
5-3/8
2
14-3/4
14
23-1/2
RIGHT SIDE
2-1/4
1-1/8
Model
BTUH Output
MBH ABCD
CFM Cabinet Size
Cabinet Dimension
(F,L)C8T060A12UH11 46/34 1200 A 14 1/2 13 1/4 10 1/8 10 1/8
(F,L)C8T080A12UH11 64/48 1200 A 14 1/2 13 1/4 10 1/8 10 1/8
(F,L)C8T080B16UH11 64/48 1600 B 17 1/2 16 1/4 13 1/8 11 5/8
FC8T100B12UH11 80/53 1200 B 17 1/2 16 1/4 13 1/8 11 5/8
(F,L)C8T100C20UH11 80/53 2000 C 21 19 3/4 16 5/8 13 3/8
FC8T120C16UH11 96/64 1600 C 21 19 3/4 16 5/8 13 3/8
(F,L)C8T120C20UH11 96/64 2000 C 21 19 3/4 16 5/8 13 3/8
HORIZONTAL VENTING - MUST USE FIELDS CONTROL MODELS SWG-4Y OR TJERENLAND MODEL GPAK-JT FIELD
SUPPLIED POWER VENTING KITS
High / Low
Fire Inputs
High / Low
Fire Outputs
Cabinet
Furnace
Airflow
BTU/H BTU/H Width CFM Feet Feet
60/42 46/34 A 1200 4 4.5 34.5
80/59 64/48 A 1200 4 4.5 34.5
80/59 64/48 B 1600 4 4.5 34.5
100/65 80/53 B 1200 4 4.5 34.5
100/65 80/53 C 2000 4 4.5 34.5
120/78 96/64 C 1600 4 4.5 34.5
120/78 96/64 C 2000 4 4.5 34.5
Pipe Size
Inches
Min. Vent Length Max. Vent Length
2 Unitary Products Group
RATINGS & PHYSICAL / ELECTRICAL DATA
036-21603-002 Rev. A (1004)
Model
Output Nominal
Cabinet
Width
AFUE
Air Temp. Rise
MBH CFM In. °F °F
(F,L)C8T060A12UH11
(F,L)C8T080A12UH11
(F,L)C8T080B16UH11
FC8T100B12UH11
(F,L)C8T100C20UH11
FC8T120C16UH11
(F,L)C8T120C20UH11
Model
(F,L)C8T060A12UH11
(F,L)C8T080A12UH11
(F,L)C8T080B16UH11
FC8T100B12UH11
(F,L)C8T100C20UH11
FC8T120C16UH11
(F,L)C8T120C20UH11
Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures.
Wire size and over current protection must comply with the National Electrical Code (NFPA-70-latest edition) and all local codes.
The furnace shall be installed so that the electrical components are protected from water.
46/34 1200 14-1/2 80.0 25-55 165
64/48 1200 14-1/2 80.0 30-60 175
64/48 1600 17 1/2 80.0 25-55 160
80/53 1200 17 1/2 80.0 25-55 170
80/53 2000 21 80.0 25-55 160
96/64 1600 21 80.0 25-55 180
96/64 2000 21 80.0 25-55 170
Output Blower
Blower
Size
MBH Hp Amps In. Amps LBS
Total
Unit
Max Over-current
Size (awg) @
75 ft.protect
46/34 1/3 6.2 10 x 7 9.0 20 14 107
64/48 1/3 6.2 10 x 7 9.0 20 14 119
64/48 3/4 11.5 11 x 8 12.0 20 14 129
80/53 1/2 7.0 10 x 8 12.0 20 14 131
80/53 1.0 12.2 11 x 10 14.0 20 12 149
96/64 1/2 10.4 10 x 10 12.0 20 14 149
96/64 1.0 12.2 11 x 10 14.0 20 12 151
FILTER SIZES
Cabinet Size Side (in) Bottom (in)
A 16 x 26 14 x 26
B 16 x 26 16 x 26
C (2) 16 x 26 20 x 26
D (2) 16 x 26 20 x 26
Min.
Wire
one way
Max. Outlet
Air Temp.
Operation
WGT.
* ESP (External Static Pressure) .5" WG is at furnace outlet ahead of cooling coil.
NOTES:
1. All filters must be high velocity cleanable type.
2. Air flows above 1800 CFM require either return from two sides or one side plus bottom.
Unitary Products Group 3