Table of Contents
Advertisement
Quick Links
INSTALLATION MANUAL
SINGLE STAGE ECM
RESIDENTIAL GAS FURNACES
MODELS: TM8E, TMLE
(80% Multi-Position/Standard & Low NOx)
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
VENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Furnace and Coil Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Combustible Floor Base Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Horizontal Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Attic Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Suspended Furnace / Crawl Space Installation . . . . . . . . . . . 7
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Side Return Cutout Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Unit in an Upflow Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . 4
Cabinet and Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Recommended Filter Sizes (High Velocity 600 FPM) . . . . . . . . . 8
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ratings & Physical / Electrical Data . . . . . . . . . . . . . . . . . . . . . 11
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
These high efficiency, compact units employ induced combustion, reli-
able hot surface ignition and high heat transfer aluminized tubular heat
exchangers. The units are factory shipped for installation in upflow or
horizontal applications and may be converted for downflow applica-
tions.
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.
Johnson Controls Ducted Systems
LIST OF SECTIONS
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . 16
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . 25
REPLACEMENT PART CONTACT INFORMATION . . . . . . . . 25
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
LIST OF FIGURES
Single Stage Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Single Stage Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Combustion Air Inducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . 15
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
LIST OF TABLES
Unconfined Space Minimum Area . . . . . . . . . . . . . . . . . . . . . . . 14
Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Gas Rate (CU FT/HR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Default Blower Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Blower Performance CFM - Any Position (without filter) . . . . . . 21
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.
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.
WARNING
!
5594752-UIM-B-0419
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Johnson Controls Unitary Products TM8E
Summary of Contents for Johnson Controls Unitary Products TM8E
-
Page 1: Table Of Contents
INSTALLATION MANUAL SINGLE STAGE ECM RESIDENTIAL GAS FURNACES MODELS: TM8E, TMLE (80% Multi-Position/Standard & Low NOx) LIST OF SECTIONS SAFETY ......... . . 1 START-UP AND ADJUSTMENTS . - Page 2 5594752-UIM-B-0419 SPECIFIC SAFETY RULES AND PRECAUTIONS 11. The size of the unit should be based on an acceptable heat loss calculation for the structure. ACCA, Manual J or other approved 1. Only Natural gas or Propane (LP) gas are approved for use with methods may be used.
-
Page 3: Safety
5594752-UIM-B-0419 COMBUSTION AIR QUALITY CODES AND STANDARDS (LIST OF CONTAMINANTS) Follow all national, local codes and standards in addition to this installa- tion manual. The installation must comply with regulations of the serv- The furnace requires OUTDOOR AIR for combustion when the furnace ing gas supplier, local building, heating, plumbing, and other codes. -
Page 4: Unit Clearances To Combustibles (All Dimensions In Inches And Cm, And All Surfaces Identified With The Unit In An Upflow Configuration)
5594752-UIM-B-0419 INSPECTION FOR FURNACES INSTALLED IN THE COMMON- As soon as a unit is received, it should be inspected for possible dam- WEALTH OF MASSACHUSETTS ONLY age during transit. If damage is evident, the extent of the damage For all side wall horizontally vented gas fueled equipment installed in should be noted on the carrier’s freight bill. -
Page 5: Ductwork
5594752-UIM-B-0419 SECTION II: DUCTWORK If a matching cased indoor coil is used, it may be placed directly on the furnace outlet and sealed to prevent leakage. If an uncased indoor coil DUCTWORK GENERAL INFORMATION with a thermoplastic drain pan is to be installed in the upflow/horizontal- configuration, then extra 2”... - Page 6 5594752-UIM-B-0419 COIL INSTALLATION The indoor coil must be mounted on the supply side of the furnace as shown in Figure 2. Refer to the Installation Instructions provided with IMPORTANT: On all installations without a coil, a removable access each indoor coil. panel is recommended in the outlet duct such that smoke or reflected light would be observable inside the casing to indicate the presence of leaks in the heat exchanger.
-
Page 7: Horizontal Application
5594752-UIM-B-0419 DOWNFLOW APPLICATION When moving or handling this furnace prior to installation, always leave the doors on the furnace to provide support and to prevent damage or For downflow applications, the furnace must be turned upside-down so warping of the cabinet. When lifting the furnace, support the ends of the that the circulating air enters at the top and exits the furnace at the bot- furnace rather than lifting by the cabinet flanges at the return air open- tom. -
Page 8: Filters
5594752-UIM-B-0419 FIGURE 7: Dimensions Table 2: Cabinet and Duct Dimensions Approximate Cabinet Dimensions (Inches) Nominal BTUH (kW) Cabinet Operating Weights Input Size CFM (m /min) A (cm) B (cm) C (cm) 40 (11.7) 1200 (34.0) 14 1/2 36.8 13 3/8 34.0 10.3 26.2... -
Page 9: Gas Piping
5594752-UIM-B-0419 SECTION IV: GAS PIPING SIDE RETURN GAS SAFETY Locate the “L” shaped corner locators. These indicate the size of the cut- out to be made in the furnace side panel. Refer to Figure 8. DANGER An overpressure protection device, such as a pressure regulator, must be installed in the gas piping system upstream of the furnace and must act to limit the downstream pressure to the gas valve so it does not exceed 0.5 PSI (14"... -
Page 10: Electrical Power
5594752-UIM-B-0419 GAS ORIFICE CONVERSION FOR PROPANE (LP) IMPORTANT: An accessible manual shutoff valve must be installed This furnace is constructed at the factory for natural gas-fired operation, upstream of the furnace gas controls and within 6 feet (1.8 m) of the furnace. - Page 11 5594752-UIM-B-0419 Table 5: Ratings & Physical / Electrical Data Max. Nominal Air Temp. Recommended Total Gas Pipe Input Output Outlet Blower Blower Airflow Rise AFUE Fuse or Circuit Unit Connection, Air Temp Size Breaker Amps Amps ºF ºC ºF ºC Amps /min 11.7...
-
Page 12: Thermostat Chart - Single Stage Ac With Single Stage Furnaces
5594752-UIM-B-0419 FIGURE 12: Thermostat Chart - Single Stage AC with Single Stage Furnaces FIGURE 13: Thermostat Chart - Single Stage HP with Single Stage Furnaces Johnson Controls Ducted Systems... -
Page 13: Vent System
5594752-UIM-B-0419 ACCESSORY CONNECTIONS The furnace shall be connected to any type of B, BW or L vent connec- tor, and shall be connected to a factory-built or masonry chimney. The The furnace control will allow power-switching control of various acces- furnace shall not be connected to a chimney flue serving a sepa- sories. -
Page 14: Combustion Airflow Path Through The Furnace Casing To The Burner
5594752-UIM-B-0419 Dampers, Louvers and Grilles (Canada Only) 1. The free area of a supply air opening shall be calculated by sub- COMBUSTION tracting the blockage area of all fixed louvers grilles or screens from the gross area of the opening. 2. - Page 15 5594752-UIM-B-0419 FIGURE 16: Outside and Ambient Combustion Air 4. The blocking effects of louvers, grilles and screens must be given Air Supply Openings and Ducts consideration in calculating free area. If the free area of a specific 1. An opening may be used in lieu of a duct to provide the outside air louver or grille is not known.
- Page 16 5594752-UIM-B-0419 WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon- monxide poisoning or death. The following steps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliances connected to the venting system are not in operation: 1.
- Page 17 5594752-UIM-B-0419 GAS PIPING LEAK CHECK With furnace in operation, check all of the pipe joints, gas valve connec- tions and manual valve connections for leakage using an approved gas WARNING detector, a non-corrosive leak detection fluid, or other leak detection methods.
-
Page 18: Gas Rate (Cu Ft/Hr)
5594752-UIM-B-0419 Table 9: Gas Rate (CU FT/HR) Seconds For Size of Test Dial Seconds For Size of Test Dial 1 Revolution 1 Revolution 1 Cu Ft 2 Cu Ft 5 Cu Ft 1 Cu Ft 2 Cu Ft 5 Cu Ft 1800 1636 1500... -
Page 19: Gas Valve
5594752-UIM-B-0419 ADJUSTMENT OF MANIFOLD GAS PRESSURE & 1. Refer to Figure 17 for location of pressure regulator adjustment cap INPUT RATE and adjustment screws on main gas valve. 2. Turn gas and electrical supplies on and follow the operating instruc- Inlet and manifold gas pressure may be measured by connecting the tions to place the unit back in operation. -
Page 20: Default Blower Speeds
5594752-UIM-B-0419 AIRFLOW SETTINGS Gas Heating Airflow Default Setting This unit is equipped with a five-speed blower motor. The heating Cooling Airflow Settings blower speed is set at the factory to the default blower speed, which is This unit is equipped with a five-speed blower motor. The desired cool- the blower speed that will deliver the correct airflow for proper heating ing airflow may be selected by connecting the desired motor speed tap operation in most applications. -
Page 21: Furnace Control Board
5594752-UIM-B-0419 DIAGNOSTIC ERROR CODE RETRIEVAL BUTTON BLOWER OFF DELAY JUMPER ELECTRONIC AIR CLEANER TERMINAL CONTINUOUS FAN SPEED JUMPER HUMIDIFIER TERMINAL FIGURE 19: Furnace Control Board Table 13: Blower Performance CFM - Any Position (without filter) 1, 2 Airflow Data (SCFM) Models Speed Ext. -
Page 22: Safety Controls
5594752-UIM-B-0419 Table 13: Blower Performance CFM - Any Position (without filter) (Continued) 1, 2 Airflow Data (SCFM) Models Speed Ext. Static Pressure (in. H2O) High 1795 1755 1715 1673 1631 1587 1533 1479 Medium High 1464 1417 1364 1325 1290 1227 1188 1138... - Page 23 5594752-UIM-B-0419 SEQUENCE OF OPERATION Hot Surface Ignition System The following describes the sequence of operation of the furnace. Refer WARNING to Owners Manual for component location. Continuous Blower HOT SURFACE IGNITION SYSTEM Cooling/heating thermostats have a fan switch that has an ON and Do not attempt to light this furnace by hand (with a match or any other AUTO position.
- Page 24 5594752-UIM-B-0419 3 RED FLASHES: This indicates the pressure switch contacts are open 4 AMBER FLASHES: The control is receiving a “Y” signal from the when they should be closed. Check for faulty inducer, blocked vent thermostat without a “G” signal. The furnace will operate normally in pipe, broken pressure switch hose, disconnected pressure switch or both heating and cooling, but this fault code will be displayed in order to inducer wires or faulty pressure switch.
-
Page 25: Replacement Parts List
3. Customer Service contact information. a. Click on the “Brand Links” button b. Click on the “Customer Service” button • You can contact us by mail. Just send a written request to: Johnson Controls Unitary Products Consumer Relations 5005 York Drive Norman, OK 73069... -
Page 26: Wiring Diagram
5594752-UIM-B-0419 SECTION X: WIRING DIAGRAM Wiring Diagram - 80% Standard ECM Furnace CAUTION PRECAUTION OUVREZ LES DISJONCTEURS AVANT OPEN ALL DISCONNECTS BEFORE SERVICING THIS UNIT DE PROCEDER AVEC LE SERVICE BLU/WHT RED-LOW YEL-MED LO Legend GRY-MED DS - Door switch LO COOL BLU-MED HI ROS -... -
Page 27: Start Up Sheet
5594752-UIM-B-0419 SECTION XI: START UP SHEET 33" 80% AFUE Single Stage Gas Furnace Start Up Sheet Proper furnace start up is critical to customer comfort and equipment longevity Start-Up Date Technician Performing Start-Up Installing Contractor Name Owner Information Name Address City State or Province Zip or Postal Code... - Page 28 Gas Side Gas Type Natural Gas LP Gas (Requires LP conversion kit) LP Gas Conversion Kit Part # Used LP Conversion Kit Installed By Inlet Gas Pressure (in. w.c.") Manifold Gas Pressure (in. w.c.") Calculated input in btuh - clock the gas meter (Nat Gas Only) Air Side: System External Static Pressure Supply static before indoor coil (in w.c.") Supply static after indoor coil (in w.c.")
Need help?
Do you have a question about the TM8E and is the answer not in the manual?
Questions and answers