Johnson Controls Ducted Systems
5532522-UIM-B-0619
SINGLE STAGE ECM
RESIDENTIAL GAS FURNACES
MODELS: TL8E
(80% Upflow/Horizontal - Ultra Low NOx
Natural Gas Only)
INSTALLATION MANUAL
LIST OF SECTIONS
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
VENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . 13
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
OPERATION & DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . 19
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . 21
REPLACEMENT PART CONTACT INFORMATION . . . . . . . . 21
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
LIST OF FIGURES
Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Furnace and Coil Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Horizontal Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Attic Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Suspended Furnace / Crawl Space Installation . . . . . . . . . . . 6
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Side Return Cutout Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermostat Chart - Single Stage AC with Single Stage Furnaces . . . 9
Thermostat Chart - Single Stage HP with Single Stage Furnaces . .10
Thermostat Chart - 1H/2C - Single Stage
Furnace (STD-ECM) - Two Stage Air Conditioner . . . . . . . . . . . . . .10
Combustion Air Inducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Combustion Airflow Path Through The Furnace
Casing to the Burner Compartment . . . . . . . . . . . . . . . . . . . . . . . . . 11
Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . 12
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
LIST OF TABLES
Unit Clearances to Combustibles (All Dimensions in Inches, and All
Surfaces Identified with the Unit in an Upflow Configuration) . . . 3
Cabinet and Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Recommended Filter Sizes (High Velocity 600 FPM) . . . . . . . . . 7
Ratings & Physical / Electrical Data . . . . . . . . . . . . . . . . . . . . . . 8
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Unconfined Space Minimum Area . . . . . . . . . . . . . . . . . . . . . . . 12
Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Gas Rate (CU FT/HR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
New: Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . 16
Blower Performance CFM - Any Position (without filter) . . . . . . 18
These high efficiency, compact units employ induced combustion, reli-
able hot surface ignition and high heat transfer tubular heat exchang-
ers. 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 oper-
ation.
These units are Category I listed and may be common vented with
another gas appliance as allowed by the National Fuel Gas Code.
SECTION I: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words
DANGER
,
WARNING
, or
CAUTION
.
DANGER
indicates an
imminently
hazardous situation, which, if not
avoided,
will result in death or serious injury
.
WARNING
indicates a
potentially
hazardous situation, which, if not
avoided,
could result in death or serious injury
.
CAUTION
indicates a potentially hazardous situation, which, if not
avoided
may result in minor or moderate injury.
It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
SPECIFIC SAFETY RULES AND PRECAUTIONS
1. Only Natural gas is approved for use with this furnace.
2. Install this furnace only in a location and position as specified in
these instructions.
3. A gas-fired furnace for installation in a residential garage must be
installed as specified in these instructions.
4. Provide adequate combustion and ventilation air to the furnace
space as specified in these instructions.
5. Combustion products must be discharged outdoors. Connect this
furnace to an approved vent system only, as specified in SECTION
VI of these instructions.
6. Test for gas leaks as specified in these instructions.
WARNING
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or maintenance
can cause injury or property damage.
Failure to carefully read and
follow all instructions in this manual can result in furnace mal-
function, death, personal injury and/or property damage.
Only a
qualified contractor, installer or service agency should install this
product.
!
