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INSTALLATION MANUAL
TWO STAGE PSC
RESIDENTIAL GAS FURNACES
MODELS: TM9T Series
(96% AFUE Multi-position)
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TWINNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
VENTING CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Vertical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Coil Cabinet Attachment Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Single Stage PSC Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Typical Twinned Furnace Application . . . . . . . . . . . . . . . . . . . . . . . 15
Twinning Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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
Nominal Manifold Pressure - Low Fire . . . . . . . . . . . . . . . . . . . . . . . 11
Ratings & Physical / Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . 12
Maximum Equivalent Pipe Length . . . . . . . . . . . . . . . . . . . . . . . . . . 23
High Altitude Pressure Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Elbow Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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.
LIST OF SECTIONS
COMBUSTION AIR and VENT SYSTEM . . . . . . . . . . . . . . . . . . . . 22
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 30
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
NORMAL OPERATION AND DIAGNOSTICS . . . . . . . . . . . . . . . . . 36
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
REPLACEMENT PART CONTACT INFORMATION . . . . . . . . . . . . 38
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
LIST OF FIGURES
Typical Condensate Drain, Vertical Installation . . . . . . . . . . . . . . . . 16
Upflow Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Downflow Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Horizontal Left Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Horizontal Right Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Home Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Termination Configuration - 1 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Termination Configuration - 2 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Termination Configuration - 2 Pipe Basement . . . . . . . . . . . . . . . . . 26
Downward Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Direct Vent Air Intake Connection and Vent Connection . . . . . . . . . 27
Combustion Airflow Path Through The Furnace Casing . . . . . . . . . 28
Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Attic and Crawl Space Combustion Air Termination . . . . . . . . . . . . . 30
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
LIST OF TABLES
Equivalent Length of Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Size at Furnace (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Unconfined Space Minimum Area . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Gas Rate (CU FT/HR) at Full Input . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Blower Performance CFM - Any Position (without filter) . . . . . . . . . . 35
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.
1083286-UIM-H-0817
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Table of Contents
Related Manuals for Johnson Controls Unitary Products TM9T Series
Summary of Contents for Johnson Controls Unitary Products TM9T Series
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Page 1: Table Of Contents
INSTALLATION MANUAL TWO STAGE PSC RESIDENTIAL GAS FURNACES MODELS: TM9T Series (96% AFUE Multi-position) LIST OF SECTIONS SAFETY ..........2 COMBUSTION AIR and VENT SYSTEM . -
Page 2: Safety
• Means for providing outdoor air required for combustion; tions in the manuals and on the labels attached to the unit and • Return air temperature maintained between 55ºF (13ºC) and other safety precautions that may apply. 80ºF (27ºC); Johnson Controls Unitary Products... - Page 3 The installation must comply with regulations of the serv- ing gas supplier, local building, heating, plumbing, and other codes. In absence of local codes, the installation must comply with the national codes listed below and all authorities having jurisdiction. Johnson Controls Unitary Products...
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Page 4: Unit Clearances To Combustibles
1. 24" clearance in front and 18" on side recommended for service access. the appliance is not using outdoor combustion air). 2. For combustible floors only when used with special sub-base. All furnaces approved for alcove and attic installation. Johnson Controls Unitary Products... -
Page 5: Ductwork
Attach the indoor coil cabinet to the duct connector, and then position the furnace on top of the coil cabinet. The connection to the furnace, indoor coil cabinet, duct connector, and supply air duct must be sealed to prevent air leakage. Johnson Controls Unitary Products... -
Page 6: Vertical Applications
4 flanges. See Figure 3. Do not drill any holes or drive any screws into the front duct flange on the coil in order to prevent damaging coil tubing. See Figure 6. ATTACHMENT FLANGES FIGURE 3: Coil Cabinet Attachment Flanges Johnson Controls Unitary Products... -
Page 7: Pc Series Upflow Coil Installation
The internal bottom panel must be removed for this application. Attic installations must meet all minimum clearances to combustibles and have floor support with required service accessibility. FIGURE 7: Horizontal Left or Right application (Right Shown) Johnson Controls Unitary Products... -
Page 8: Horizontal Application
Do not use the top return FIGURE 12: Downflow Venting bend of the heat exchangers as lifting points as the tubes may shift out of position or their location brackets/baffles. Johnson Controls Unitary Products... -
Page 9: Filters
2. Do not exceed 1800 CFM using a single side return and a 16x25 filter. For CFM greater than 1800, you may use two side returns or one side and the bottom or one side return with a transition to allow use of a 20x25 filter. Johnson Controls Unitary Products... -
Page 10: Gas Piping
0.5 psig (3.5 kPa). Gas piping may be connected from either side of the furnace using any of the gas pipe entry knockouts on both sides of the furnace. Refer to Figures 13 and 16. Johnson Controls Unitary Products... -
Page 11: Nominal Manifold Pressure - High Fire
Do not attempt to drill out any orifices to obtain the proper orifice size. Drilling out a gas orifice will cause misalignment of the burner flames, caus- ing premature heat exchanger burnout, high levels of carbon monoxide, excessive sooting, a fire hazard, personal injury, property damage and/or death. Johnson Controls Unitary Products... -
Page 12: Electrical Power
The transformer may provide power for an where the wires pass through the furnace panel. After making the air conditioning unit contactor. wiring connections replace the wiring box cover and screws. Refer to Figure 17. Johnson Controls Unitary Products... -
Page 13: Thermostat Chart - Single Stage Ac With Single Stage Psc Furnaces
1083286-UIM-H-0817 For additional connection diagrams for all Johnson Controls Unitary Products’ equipment refer to “Low Voltage System Wiring” document available on-line at www.upgnet.com in the Product Catalog Section. Two Stage Air Conditioner - Two Stage Furnace ID MODELS PT(8/9) (F/L)*(8/9)T... -
Page 14: Thermostat Chart - Two Stage Hp With Two Stage Psc Furnace
Source is Fossil Fuel Thermostat Installer Setup 0210-External Fossil Fuel Kit must be set to 1 Heat Pump Control is Controlling Heat Pump Backup Heat FIGURE 19: Thermostat Chart - Two Stage HP with Two Stage PSC Furnace Johnson Controls Unitary Products... -
Page 15: Twinning
If a side entrance returns system is used, the common return duct must be divided equally so as to supply each furnace with an equal amount of return air. Johnson Controls Unitary Products... -
Page 16: Condensate Piping And Furnace Venting Configuration
Vented Drain the furnace. NOTICE FIGURE 22: Typical Condensate Drain, Vertical Installation The Figures 23 - 26 show the condensate drain arrangement for the various possible furnace and vent blower positions. Johnson Controls Unitary Products... - Page 17 This is only approved for upflow and horizontal applications when the intake pipe is located on the top of the furnace. This is true for all long horizontal venting in any furnace configuration. This will keep condensate from entering the furnace. Johnson Controls Unitary Products...
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Page 18: Upflow Configuration
1083286-UIM-H-0817 FIGURE 23: Upflow Configuration Johnson Controls Unitary Products... -
Page 19: Downflow Configuration
1083286-UIM-H-0817 FIGURE 24: Downflow Configuration Johnson Controls Unitary Products... -
Page 20: Horizontal Left Configuration
1083286-UIM-H-0817 FIGURE 25: Horizontal Left Configuration Johnson Controls Unitary Products... -
Page 21: Horizontal Right Configuration
1083286-UIM-H-0817 FIGURE 26: Horizontal Right Configuration Johnson Controls Unitary Products... -
Page 22: Combustion Air And Vent System
For other Innoflue pipe and fitting part numbers, visit website 3. Three vent terminal elbows (two for the vent and one for the com- www.centrotherm.us.com bustion air intake) are already accounted for and need not be included in the equivalent length calculation. Johnson Controls Unitary Products... -
Page 23: Maximum Equivalent Pipe Length
80,000 80,000 80,000 80,000 80,000 100,000 100,000 100,000 100,000 100,000 100,000 120,000 120,000 120,000 120,000 Table 9: High Altitude Pressure Switches High Altitude Pressure Switches required for all installations above 5000 Feet Part Number Models S1-1PS3308 Johnson Controls Unitary Products... -
Page 24: Elbow Dimensions
5 - 90º standard 3" elbows = (5 x 7) = 35 equivalent feet The vent must be installed with the minimum required clearances, Total = 67 equivalent feet of 3" pipe and must comply with local codes and requirements. Johnson Controls Unitary Products... -
Page 25: Home Layout
If a metal shield is used it must be a stainless steel material at a minimum dimension of 20 inches (51 cm). It is recommended that a retaining type collar be used that is attached to the building sur- face to prevent movement of the vent pipe. Johnson Controls Unitary Products... -
Page 26: Termination Configuration - 1 Pipe
The combustion air and will help reduce condensation. vent pipes must terminate in the same atmospheric zone. Johnson Controls Unitary Products... -
Page 27: Double Horizontal Combustion Air Intake And Vent Termination
Connects to Vent pipe clamps collar on top into outlet of of burner box drain coupling 16’ MAX 6” MIN. 6” MIN. FIGURE 34: Downward Venting FIGURE 35: Direct Vent Air Intake Connection and Vent Connection Johnson Controls Unitary Products... -
Page 28: Combustion Airflow Path Through The Furnace Casing
The blocking effects of louvers, grilles and screens must be given con- sideration in calculating free area. If the free area of a specific louver or grille is not known, refer to Table 13 to estimate free area. Johnson Controls Unitary Products... -
Page 29: Ambient Combustion Air
1” (2.54 cm) from the sides and back and 6” (15.2 cm) from the front of the appliance. The opening shall com- municate directly with the outdoors and shall have a minimum free area of: Johnson Controls Unitary Products... -
Page 30: Start-Up And Adjustments
Burner ignition may not be satisfactory on first startup due to residual air in the gas line or until gas manifold pressure is adjusted. The igni- tion control will make three attempts to light before locking out. Johnson Controls Unitary Products... - Page 31 Burner orifices are sized to provide proper input rate using natural gas with a heating value of 1030 BTU/Ft (38.4 MJ/m ). If the heating value of your gas is significantly different, it may be necessary to replace the orifices. Johnson Controls Unitary Products...
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Page 32: Gas Rate (Cu Ft/Hr) At Full Input
Size of Test Dial Seconds For Seconds For 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 1385 1286 1200 1125 1059 1000 Johnson Controls Unitary Products... -
Page 33: Gas Valve
6. Turn the electrical and gas supplies back on, and with the burners in operation, check for gas leakage around the gas valve pressure port for leakage using an approved non-corrosive gas leak detec- tion fluid, or other non-flammable leak detection methods. Johnson Controls Unitary Products... -
Page 34: Reading Gas Pressure
MPT plug and insert it 3 turns into the hole to correctly seal it. CONTINUOUS FAN SPEED JUMPER BLOWER OFF DELAY JUMPER DIAGNOSTIC ERROR CODE RETRIEVAL BUTTON HUMIDIFIER TERMINAL ELECTRONIC AIR CLEANER TERMINA FIGURE 41: Furnace Control Board Johnson Controls Unitary Products... -
Page 35: Blower Performance Cfm - Any Position (Without Filter)
1. Airflow expressed in standard cubic feet per minute (SCFM). 2. Return air is through side opposite motor (left side). 3. Motor voltage at 115 V. 4. Airflow through across motor side (right side) may be slightly less than the data shown above. Johnson Controls Unitary Products... -
Page 36: Safety Controls
BLOWER SPEED jumper on the Do not try to repair controls. Replace defective controls with Johnson Controls Unitary Products Source1 parts. control board (HI COOL, LO COOL, HI HEAT, or LO HEAT). - Page 37 Flash error code. See the description of “5 Red Flashes” and “11 Red Flashes” below. If the main limit switch opens five times within a single call for heat, the control will indicate 4 Red Flashes and will enter a one-hour soft lock- out. Johnson Controls Unitary Products...
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Page 38: 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 39: Wiring Diagram
221 degrés F (105 degrés C ). 2. Les connexions à grande vitesse du moteur du ventilateur indiqués sont typiques, mais peuvent varier selon le modèle et par application. 1042426-UWD-A-0413 FIGURE 42: Wiring Diagram Johnson Controls Unitary Products... - Page 40 1083286-UIM-H-0817 NOTES Johnson Controls Unitary Products...
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Page 41: Start Up Sheet
Thermostat heat anticipator set to .4 or (6 cycles per hour for electronic thermostats) Low voltage value between "R" and "C" on furnace control board (volts AC) Staging: Thermostat Staging: 10 MIN 15 MIN 20 MIN Continued on next Page Johnson Controls Unitary Products... - Page 42 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.") Low Fire Manifold Gas Pressure (in. w.c.") High Fire Manifold Gas Pressure (in. w.c.") Calculated input in btuh - clock the gas meter in high fire (Nat Gas Only) Burner flame inspected -- flames are blue and extending directly into the primary heat exchanger cells Air Side: System External Static Pressure...