Johnson Controls TM9X*MP Vent System, Vent Applications and Termination, Venting Multiple Units

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697936-UIM-B-01211

VENT SYSTEM

This furnace is certified to be installed with one of two possible vent configurations.

1.Horizontal vent system. This vent system can be installed com- pletely horizontal or combinations of horizontal, vertical, or offset using elbows.

2.Vertical vent system. This vent system can be installed completely vertical or a combination of horizontal, vertical, or offset using elbows.

VENT APPLICATIONS AND TERMINATION

When selecting the location for a combustion air / vent termination, the following should be considered:

1.

Observe all clearances listed in vent clearances in these instruc-

 

tions.

2.

Termination should be positioned where vent vapors will not dam-

12” MIN.

12” MIN.

12” Minimum below overhang

12” Minimum separation between bottom of combustion air intake and bottom of vent

Maintain 12” minimumclearance above highest anticipated snow level or grade, whichever is higher

 

age plants or shrubs or air conditioning equipment.

3.

Termination should be located where it will not be affected by wind

 

gusts, light snow, airborne leaves or allow recirculation of flue

 

gases.

4.

Termination should be located where it will not be damaged or

 

exposed to flying stones, balls, etc.

5.

Termination should be positioned where vent vapors are not objec-

 

tionable.

6.

Horizontal portions of the vent system must slope upwards and be

 

supported to prevent sagging.

7.

Direct vent systems must be installed so the vent and the combus-

 

tion air pipes terminate in the same atmospheric zone. Refer to Fig-

 

ures 29 or 30.

Maintain 12” minimum clearance above highest anticipated snow level. Maximum 24” above roof.

12” Min.

12” Min.

FIGURE 28: Termination Configuration - 1 Pipe

FIGURE 30: Termination Configuration - 2 Pipe Basement

VENTING MULTIPLE UNITS

Multiple units can be installed in a space or structure as either a single pipe configuration or a two-pipe configuration.

The combustion air side of the single pipe configuration shown in Figure 28 is referred to in these instructions as ambient combustion air supply. Follow the instructions for ambient combustion air installations, paying particular attention to the section on air source from inside the building. The vent for a single pipe system must be installed as specified in the venting section of these instructions with the vent terminating as shown in Figure 28. Each 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 Figure 29 can be installed so the combustion air pipe terminates as described in outdoor combustion air or ventilated combustion air sections in these instructions. Follow the instructions for outdoor combustion air or venti- lated combustion air and the instructions for installing the vent system with the vent terminating as shown in Figures 31 or 32. The two-pipe system must have a separate combustion air pipe and a separate vent pipe for each furnace. Under NO circumstances can the two combus- tion air or vent pipes be tied together. The combustion air and vent pipes must terminate in the same atmospheric zone.

VENT

Maintain 12” minimum clearance above highest anticipated snow level.

12” vertical separation

 

between combustion air

12” minimum

intake and vent.

below overhang

 

 

12” minimum

 

separation between

 

bottom of

 

combustion air pipe

 

and bottom of vent.

 

Maintain 12”

 

minimum clearance

 

above highest

 

anticipated snow

 

level or grade,

 

whichever is higher.

COMBUSTION AIR

2”

MIN.

FIGURE 31: Double Horizontal Combustion Air Intake and Vent Termination

MIN.6”

FIGURE 29: Termination Configuration - 2 Pipe

FIGURE 32: Double Vertical Combustion Air Intake and Vent Termination

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Johnson Controls Unitary Products

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Contents List of Sections List of FiguresList of Tables Combustion AIR and Vent SystemSection 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 ProjectionHorizontal Application Downflow ApplicationFilter Installation Cabinet Dimensions InchesSection III Filters Btuh kWGAS Safety GAS Piping InstallationSection IV GAS Piping Side ReturnHigh Altitude Pressure Switch Conversion GAS Orifice Conversion for Propane LPHigh Altitude GAS Orifice Conversion Manifold Pressures in. w.cSection V Electrical Power Electrical Power ConnectionsLOW Voltage Control Wiring Connections Supply Voltage ConnectionsSingle Stage Air Conditioner Single Stage Furnace Single Stage Heat Pump Single Stage Furnace Accessory Connections Electronic AIR Cleaner ConnectionHumidifier Connection TwinningCondensate Drain Termination Will cause the furnace Downflow Configuration Johnson ControlsConfiguration Horizontal LeftHorizontal Right Inducer Rotated Combustion AIR and Vent Safety Section VII 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 OnlyFree Area Air Supply Openings and Ducts Ventilated Combustion AirVentilated Combustion Air Termination Section Viii START-UP Adjustments Specially Engineered InstallationsVent Blower Rotation GAS Piping Leak Check Ignition System SequenceCalculating the Furnace Input NAT. GAS Revolution Cu Ft Seconds ForRevolution Adjustment of Manifold GAS Pressure & Input Rate Read the inlet gas pressureRead the manifold gas pressure Adjustment of Temperature Rise Adjustment of FAN Control SettingsSection IX Safety Controls Blower Door Safety SwitchRollout Switch Controls Control Circuit FuseSection X Normal Operation and Diagnostics Diagnostic Fault Code Storage and Retrieval Section XI Replacement Parts List Replacement Part Contact InformationFabricated Parts Wiring Furnace Section XII Wiring DiagramJohnson Controls Unitary Products York Drive Norman, OK

TM9X*MP specifications

The Johnson Controls TM9X*MP series represents a significant advancement in the realm of HVAC control systems, positioning itself as a versatile solution for both commercial and residential applications. Renowned for its intelligent design and user-friendly interface, the TM9X*MP series aims to enhance energy efficiency and provide comfort to its users.

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