Johnson Controls TM9T*MP Supply Voltage Connections, LOW Voltage Control Wiring Connections

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505309-UIM-D-0511

Table 7: Ratings & Physical / Electrical Data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input - HI/LOW

Output - HI/LOW

Nominal Air Flow

Total Unit

AFUE

Hi Fire Air Temp Rise

Lo Fire Air Temp Rise

MBH

kW

MBH

kW

CFM

m3/min

Amps

%

°F

 

°C

°F

°C

60/39

18/11

58/37

17/11

1200

34

10

96

35

- 65

 

19.5 - 36

35 - 65

19.5 - 36

80/52

23/15

77/50

22/14

1200

34

10

96

45

- 75

 

25 - 41.6

20 - 50

11.1 - 27.8

80/52

23/15

77/50

22/14

1600

45.3

11.5

96

45

- 75

 

25 - 41.6

25 - 55

13.9 - 30.5

100/65

29/19

96/62

28/18

1600

45.3

11.5

96

35

- 65

 

19.5 - 36

35 - 65

19.5 - 36

100/65

29/19

96/62

28/18

2000

56.6

17

96

45

- 75

 

25 - 41.6

20 - 50

11.1 - 27.8

120/78

35/23

115/75

33/22

2000

56.6

17

96

45

- 75

 

25 - 41.6

35 - 65

19.5 - 36

Max. Outlet

Air Temp

Blower

Blower Size

Max. Over Current

 

Min. Wire Size

Operating Weight

°F

°C

HP

Amps

in.

cm

Protect

(awg) @ 75ft.one way

lbs.

kg.

170

76.7

1/2

7

11 x 8

27.9 x 20.3

15

 

 

 

14

122

55.3

175

79.4

1/2

7

11 x 8

27.9 x 20.3

15

 

 

 

14

126

57.1

175

79.4

3/4

8.8

11 x 10

27.9 x 25.4

15

 

 

 

14

136

61.7

175

79.4

3/4

8.8

11 x 10

27.9 x 25.4

15

 

 

 

14

142

64.4

175

79.4

1

14.5

11 x 11

27.9 x 27.9

20

 

 

 

12

145

65.7

180

76.7

1

14.5

11 x 11

27.9 x 27.9

20

 

 

 

12

156

70.7

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.

SUPPLY VOLTAGE CONNECTIONS

Junction

Box

Connect ground lead to screw

Electrical Entry

L1-Hot BLK

Neutral WHT

FIGURE 17: Electrical Wiring

1.Provide a power supply separate from all other circuits. Install over- current protection and disconnect switch per local/national electrical codes. The switch should be close to the unit for convenience in servicing. With the disconnect or fused switch in the OFF position, check all wiring against the unit wiring label. Refer to the wiring dia- gram in this instruction.

2.Remove the wiring box cover screws. Route all power wiring through a conduit connector or other proper bushing that has been installed into the unit opening and the junction box. In the junction box there is a black wire, a white wire and a green ground screw. Connect the power supply as shown on the unit’s wiring label located on the inside of the blower compartment door, or the wiring schematic in this section. Connect the black wire to L1 (hot) from the power supply. Connect the white wire to neutral. Connect the ground wire (installer-supplied) to the green (equipment ground) screw. An alternate wiring method is to use a field-provided 2” (5.1 cm) x 4” (10.2 cm) box and cover on the outside of the furnace. Route the furnace leads into the box using a protective bushing where the wires pass through the furnace panel. After making the wiring connections replace the wiring box cover and screws. Refer to Figure 17.

3.The furnace's control system requires correct polarity of the power supply and a proper ground connection. Refer to Figure 17.

The power connection leads and wiring box may be relocated to the left side of the furnace. Remove the screws and cut wire tie holding excess wiring. Reposition on the left side of the furnace and fasten using holes provided.

LOW VOLTAGE CONTROL WIRING CONNECTIONS

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 thermostat wiring from the wiring connections on the thermostat to the terminal board on the ignition module, as shown in Figures 18 or 19. Electronic thermostats may require the common wire to be connected. Apply strain relief to thermostat wires passing through cabinet. If air condition- ing equipment is installed, use thermostat wiring to connect the Y and C terminals on the furnace control board to the proper wires on the con- densing unit (unit outside).

Set the heat anticipator in the room thermostat to 0.4 amps. Setting it lower will cause short cycles. Setting it higher will cause the room temperature to exceed the set points.

Some electronic thermostats do not have adjustable heat anticipa- tors. They should be set to six cycles per hour. Follow the thermostat manufacturer's instructions.

The 24-volt, 40 VA transformer is sized for the furnace components only, and should not be connected to power auxiliary devices such as humidifiers, air cleaners, etc. The transformer may provide power for an air conditioning unit contactor.

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Johnson Controls Unitary Products

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Contents Models TM9T*MP List of SectionsList of Figures List of TablesSection I Safety Specific Safety Rules and PrecautionsSafety Requirements Combustion AIR Quality List of Contaminants Codes and StandardsInspection Furnace Location and ClearancesFloor Base and Ductwork Installation Downflow Section II DuctworkDuctwork General Information Duct FlangesCoil Installation COIL/FURNACE Assembly MC/FC/PC Series CoilsFurnace Assembly MC & FC Series Coils Coil Flange InstallationCoil / Furnace Assembly HC Series Coils Downflow Duct ConnectorsBottom Return and Attic Installations Critical Coil ProjectionAttic Installation Suspended Furnace / Crawl Space InstallationHorizontal Application Downflow Application Filter Installation Section III Filters Side Return GAS Safety GAS Piping InstallationSection IV GAS Piping Horizontal FiltersSection V Electrical Power High Altitude Pressure Switch ConversionElectrical Power Connections GAS Orifice Conversion for Propane LPLOW Voltage Control Wiring Connections Supply Voltage ConnectionsTwo Stage Air Conditioner Two Stage PSC Furnace PP32U70124 DN22H00124 DP22U70124TWO Stage PSC Furnace OD Models Section VI Twinning Twinning Instructions Twinning OperationCondensate Drain Location Condensate hoses must slope downwards at all pointsCondensate Drain Termination Typical. Combustion Pipe Drain TeeWill cause the furnace Airflow Horizontal Left Right Configuration Johnson ControlsCombustion AIR and Vent Safety Section Viii Combustion AIR and Vent SystemCombustion AIR/VENT Pipe Sizing Model Input Pipe Size MaximumCombustion AIR and Vent Piping Assembly Elbow a DimensionCombustion AIR / Venting Fitting Equivalent LengthVent Clearances Home LayoutVent System Vent Applications and TerminationVenting Multiple Units Downward Venting Outdoor Combustion AirCombustion AIR Supply Ambient Combustion Air SupplyCombustion Air Source From Outdoors Dampers, Louvers and Grilles Canada OnlyAir Supply Openings and Ducts Free AreaSpecially Engineered Installations Ventilated Combustion AirVentilated Combustion Air Termination Vent Blower RotationSection IX START-UP Adjustments GAS Piping Leak CheckCalculating the Furnace Input NAT. GAS Ignition System SequenceRevolution Cu Ft Seconds ForAdjustment of Manifold GAS Pressure & Input Rate Read the inlet gas pressureRead the manifold gas pressure Adjustment of Temperature Rise Adjustment of FAN Control SettingsBlower Performance CFM Any Position without filter Bottom Airflow Data ScfmLeft Side Airflow Data Scfm Section X Safety Controls Section XI Normal Operation and DiagnosticsFurnace Control Diagnostics Section XII Replacement Parts List Diagnostic Fault Code Storage and RetrievalFabricated Parts Section Xiii Wiring Diagram Wiring DiagramJohnson Controls Unitary Products York Drive Norman, OK
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