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Johnson Controls Unitary Products

1083288-UIM-A-0114

SINGLE STAGE ECM

RESIDENTIAL GAS FURNACES 

MODELS: TM9X Series 
(95.5% AFUE Multi-position)

INSTALLATION MANUAL

LIST OF SECTIONS

SAFETY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DUCTWORK  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FILTERS   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
GAS PIPING   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ELECTRICAL POWER  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CONDENSATE PIPING AND FURNACE 
VENTING CONFIGURATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

COMBUSTION AIR AND VENT SYSTEM . . . . . . . . . . . . . . . . . . . . 21
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SAFETY CONTROLS   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
NORMAL OPERATION AND DIAGNOSTICS . . . . . . . . . . . . . . . . . 35
REPLACEMENT PARTS LIST   . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
WIRING DIAGRAM   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

LIST OF FIGURES

Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Vertical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Coil Flange  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Horizontal Right Application  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Horizontal Left Application  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PC Series Upflow Coil Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Horizontal Left or Right application (Right Shown)   . . . . . . . . . . . . . . 7
Combustible Floor Base Accessory  . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Horizontal Application   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical Attic Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical Suspended Furnace / Crawl Space Installation . . . . . . . . . . . 8
Downflow Venting   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Side Return Cutout Markings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Gas Piping  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical Wiring  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Typical Low Voltage Wiring  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Typical Low Voltage Wiring  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Typical. Condensate Drain, Vertical Installation . . . . . . . . . . . . . . . . 15

Upflow Configuration   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Downflow Configuration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Horizontal Left Configuration   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Horizontal Right Configuration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Elbow Dimensions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Home Layout   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Termination Configuration - 1 Pipe  . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Termination Configuration - 2 Pipe  . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Termination Configuration - 2 Pipe Basement  . . . . . . . . . . . . . . . . . 25
Double Horizontal Combustion Air Intake and Vent Termination  . . . 26
Double Vertical Combustion Air Intake and Vent Termination  . . . . . 26
Downward Venting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Direct Vent Air Intake Connection and Vent Connection   . . . . . . . . . 26
Combustion Airflow Path Through The Furnace Casing   . . . . . . . . . 27
Ambient Combustion Air  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Attic and Crawl Space Combustion Air Termination . . . . . . . . . . . . . 29
Gas Valve  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Reading Gas Pressure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Furnace Control Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Wiring Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

LIST OF TABLES

Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Coil Projection Dimensions - PC Series Coils  . . . . . . . . . . . . . . . . . . 7
Cabinet and Duct Dimensions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended Filter Sizes (High Velocity 600 FPM)   . . . . . . . . . . . . 9
Nominal Manifold Pressure - High Fire   . . . . . . . . . . . . . . . . . . . . . . 11
Ratings & Physical / Electrical Data  . . . . . . . . . . . . . . . . . . . . . . . . . 13
Maximum Equivalent Pipe Length  . . . . . . . . . . . . . . . . . . . . . . . . . . 21
High Altitude Pressure Switches   . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Elbow Dimensions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Equivalent Length of Fittings   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Combustion Air Intake and Vent Connection 
Size at Furnace (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Unconfined Space Minimum Area   . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Free Area  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Gas Rate (CU FT/HR) at Full Input . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Inlet Gas Pressure Range   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Blower Performance CFM - Any Position (without filter) . . . . . . . . . . 34

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 IV listed and may not be common vented with
another gas appliance as allowed by the National Fuel Gas Code.

Summary of Contents for TM9X

Page 1: ...n 26 Downward Venting 26 Direct Vent Air Intake Connection and Vent Connection 26 Combustion Airflow Path Through The Furnace Casing 27 Ambient Combustion Air 28 Attic and Crawl Space Combustion Air T...

Page 2: ...ition input rate temperature rise and venting according to the manufacturer s instructions 10 When installed in a non HUD Approved Modular Home or building constructed on site combustion air shall not...

Page 3: ...ng jurisdiction In the United States and Canada follow all codes and standards for the following using the latest edition available STEP 1 Safety US National Fuel Gas Code NFGC NFPA 54 ANSI Z223 1 and...

Page 4: ...on FOR FURNACES INSTALLED IN THE COMMON WEALTH OF MASSACHUSETTS ONLY For all side wall horizontally vented gas fueled equipment installed in every dwelling building or structure used in whole or in pa...

Page 5: ...r This access cover shall be attached in such a manner as to prevent leaks DUCT FLANGES Four flanges are provided to attach ductwork to the furnace These flanges are rotated down for shipment In order...

Page 6: ...tal left hand applications no conversion is required to an MC coil when used with a downflow horizontal furnace A mounting plate supplied with every coil should always be installed on the side desig n...

Page 7: ...n a flat solid surface this bottom panel will provide an adequate seal to prevent air leakage through the unused bottom opening However if the furnace is to be installed on a surface that is uneven or...

Page 8: ...e one support located approximately in the center of the furnace near the blower shelf and the third support should be at the return end of the fur nace Maintain a 6 15 2 cm minimum clearance between...

Page 9: ...rain Optional Return Air Cutout Either side 29 5 For Cladded door add appoximately an additional 75 C SUPPLY END 56 56 20 B 3 23 8 56 Combustion Air Inlet Vent Outlet RETURN END B 24 25 Table 3 Cabine...

Page 10: ...r that has previously serviced another gas appliance Some utility companies or local codes require pipe sizes larger than the minimum sizes listed in these instructions and in the codes The furnace ra...

Page 11: ...Gas Piping Upflow Configuration Downflow Configuration Horizontal Configuration External Manual Shut off Valve External Manual Shut off Valve External Manual Shut off Valve To Gas Supply To Gas Suppl...

Page 12: ...xide personal injury property damage a fire hazard and or death High altitude and propane LP conversions are required in order for the appliance to satisfactory meet the application An authorized dist...

Page 13: ...Install the field supplied thermostat by following the instructions that come with the thermostat With the thermostat set in the OFF position and the main electrical source disconnected connect the th...

Page 14: ...Single Stage Furnace STD ECM Single Stage Air Conditoner STD ECM Y Compressor 24 Volt Common C 24 Volt Common Compressor Contactor R 24 Volt Hot Y Y2 Second or Full Stage Compressor FIGURE 19 Typical...

Page 15: ...rnace to not operate No hose clamps are needed for connecting to the condensate pan The condensate will flow to the drain better if an open stand pipe is installed in the drain line See Figure 20 If e...

Page 16: ...ake coupling the drain opening in the vent drain must not be plugged If the intake drain is used the bird screen cannot be installed This is only approved for upflow and horizontal applications when t...

Page 17: ...f so that no sagging loops will collect and hold condensate which will cause the furnace to not operate Shorten pressure switch hose Re route and shorten pressure switch hose Shorten rain gutter hose...

Page 18: ...itch hose to this position NOTE May require the longer hose that is provided with wider cabinets Move condensate drain hose to this position May exit either side of the cabinet Move rain gutter hose t...

Page 19: ...ose to this position NOTE May require the longer hose that is provided with wider cabinets Change condensate drain connection to the 90 fitting provided Move condensate drain hose to this position Mov...

Page 20: ...tting provided Move condensate drain hose to this position Move rain gutter hose to this position Change condensate drain connection to the 90 fitting provided Move condensate drain hose to this posit...

Page 21: ...o be used any joint where ABS pipe is joined to PVC pipe must be glued with cement that is approved for use with BOTH materials Metallic materials must not be used for venting or air intake 5 If a fle...

Page 22: ...3 55 60 000 4 140 60 000 4 120 80 000 2 50 80 000 2 20 80 000 3 75 80 000 3 55 80 000 4 140 80 000 4 120 100 000 2 15 100 000 2 NA 100 000 3 75 100 000 3 55 100 000 4 140 100 000 4 120 120 000 3 75 1...

Page 23: ...IGURE 25 Elbow Dimensions TABLE 9 Elbow Dimensions Elbow A Dimension Illustrated in Figure 25 2 Standard 2 5 16 3 Standard 3 1 16 2 Sweep 3 1 4 3 Sweep 4 1 16 TABLE 10 Equivalent Length of Fittings Fi...

Page 24: ...quirements of the gas supplier 12 30 5 cm or in accordance with local installation codes and the requirements of the gas supplier F Clearance to outside corner 12 30 5 cm or in accord ance with local...

Page 25: ...ch furnace must have a separate vent pipe Under NO circumstances can the two vent pipes be tied together The combustion air side of the two pipe configuration shown in Figures 28 and 29 can be install...

Page 26: ...ns Refer to Ambient Combustion Air Supply for proper installa tion Refer to Figures 34 and 35 3 VENTILATED COMBUSTION AIR Combustion air is supplied through a PVC or ABS pipe that is connected to the...

Page 27: ...adjustable louvers are not permitted for use 4 A automatically operated damper or automatically adjustable lou vers shall be interlocked so that the main burner cannot operate unless either the dampe...

Page 28: ...322 cm2 per 0 879 kW of the total input rating of all equipment located in the enclosure b Not less than the sum of all vent connectors in the confined space 3 The duct shall be least the same cross...

Page 29: ...clothes dryers and TURN ON any exhaust fans such as range hoods and bathroom exhausts so they shall operate at maximum speed Open the fireplace dampers Do not operate a summer exhaust fan 4 Follow th...

Page 30: ...eter 1 Turn off all other gas appliances and pilots 2 Run furnace for a minimum of 3 minutes in heating operation 3 Measure time in sec for gas meter to complete 1 revolution and note reading The 2 cu...

Page 31: ...300 750 78 46 92 231 25 144 288 720 80 45 90 225 26 138 277 692 82 44 88 220 27 133 267 667 84 43 86 214 28 129 257 643 86 42 84 209 29 124 248 621 88 41 82 205 30 120 240 600 90 40 80 200 31 116 232...

Page 32: ...ng gas valve regulator screw for the appropriate gas per the following 4 After the manifold pressure has been adjusted re calculate the fur nace input to make sure you have not exceeded the specified...

Page 33: ...n control The fan on delay is fixed at 30 seconds The fan off delay has 4 settings 60 90 120 and 180 seconds The fan off delay is factory set to 120 sec onds The fan off setting must be long enough to...

Page 34: ...1203 1182 1150 1125 1095 1064 1031 980 Medium 1076 1059 1029 1007 973 946 908 883 843 800 Medium Low 988 967 936 903 875 838 806 765 737 685 Low 798 769 727 695 650 619 574 517 485 443 TM9X080B12MP11...

Page 35: ...off and a retry operation begins Also if the flame is lost for 2 seconds during the 10 second stabilization period the gas valve is shut off and a retry operation begins During a retry operation the...

Page 36: ...rmer wires Both heating and cooling operations will be affected Check polarity at furnace and branch Check furnace grounding Check that flame probe is not shorted to chassis The furnace will not start...

Page 37: ...ING FERRULE 3 req d GASKET FOAM Door 1 5 ft req d GROMMET 3 req d HARNESS WIRING HOSE CONDENSATE HOSE RAIN GUTTER KNOB QUARTER TURN 4 req d MOTOR MOUNT ORIFICE BURNER Natural 45 PAN CONDENSATE PLUG SE...

Page 38: ...AVEC LE SERVICE 1042427 UWD A 0413 Fault Code Retrieval To retrieve fault codes push and release ERROR button on control board The LED will flash the last five error codes beginning with the most rece...

Page 39: ...correct black is L1 hot white is N neutral Ground wire is connected Line voltage value to furnace volts AC Low voltage value between R and C on furnace control board volts AC Thermostat Type Other Sy...

Page 40: ...ot Selectable Explain the importance of regular filter replacement and equipment maintenance Gas Side Air Side System External Static Pressure Owner Education Additional Job Detail Supply static befor...

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