Johnson Controls TM9V MP installation manual Section II Ductwork, Furnace Location and Clearances

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438335-UIM-B-0509

FURNACE LOCATION AND CLEARANCES

The furnace shall be located using the following guidelines:

1.Where a minimum amount of air intake/vent piping and elbows will be required.

2.As centralized with the air distribution as possible.

3.Where adequate combustion air will be available (particularly when the appliance is not using outdoor combustion air).

4.Where it will not interfere with proper air circulation in the confined space.

5.Where the outdoor vent terminal will not be blocked or restricted. Refer to “VENT CLEARANCES” located in SECTION VII of these instructions. These minimum clearances must be maintained in the installation.

6.Where the unit will be installed in a level position with no more than 1/4” (6.4 mm) slope side-to-side and front-to-back to provide proper condensate drainage.

Installation in freezing temperatures:

1.Furnace shall be installed in an area where ventilation facilities provide for safe limits of ambient temperature under normal oper- ating conditions. Ambient temperatures must not fall below 32°F (0°C) unless the condensate system is protected from freezing.

Improper installation in an ambient below 32ºF (0.0° C) could create a hazard, resulting in damage, injury or death.

2.Do not allow return air temperature to be below 55º F (13°C) for extended periods. To do so may cause condensation to occur in the main heat exchanger, leading to premature heat exchanger failure.

3.If this furnace is installed in an unconditioned space and an extended power failure occurs, there will be potential damage to the internal components. Following a power failure situation, do not operate the unit until inspection and repairs are performed.

4.Special precautions MUST be made if installing furnace in an area which may drop below freezing. This can cause improper opera- tion or damage to the equipment. If the furnace is installed in an area that has the potential of freezing, the drain line must be pro- tected. Use a 3 to 6 watt per foot at 115 vac, 40º F (4.4°C) self-reg- ulating, shielded and waterproof heat tape. Wrap the drain line outside of the furnace with the heat tape and secure with ties. Fol- low the heat tape manufacturer's recommendations.

Liquid anti-freeze will cause damage to internal plastic parts of this furnace. DO NOT attempt to winterize the furnace using liquid anti-freeze.

Clearances for access/service:

Ample clearances should be provided to permit easy access to the unit. The following minimum clearances are recommended:

1.Twenty-four (24) inches (61 cm) between the front of the furnace and an adjacent wall or another appliance, when access is required for servicing and cleaning.

2.Eighteen (18) inches (46 cm) at the side where access is required for passage to the front when servicing or for inspection or replace- ment of flue/vent connections.

In all cases, accessibility clearances shall take precedence over clear- ances for combustible materials where accessibility clearances are greater.

Installation in a residential garage:

A gas-fired furnace for installation in a residential garage must be installed so the burner(s) and the ignition source are located not less than 18” (46 cm) above the floor, and the furnace must be located or protected to avoid physical damage by vehicles.

Table 1: Unit Clearances to Combustibles

 

 

 

 

 

Application

Upflow

Downflow

Horizontal

Top

1"

0"

0"

Vent

0"

0"

0"

Rear

0"

0"

0"

Side

0"

0"

1"

Front*

0"

0"

0"

Floor

Combustible

Combustible1

Combustible

Closet

Yes

Yes

Yes

Line Contact

No

No

Yes

1. For combustible floors only when used with special sub-base.

*24" clearance in front and 18" on side recommended for service access. All furnaces approved for alcove and attic installation.

SECTION II: DUCTWORK

DUCTWORK GENERAL INFORMATION

The duct system’s design and installation must:

1.Handle an air volume appropriate for the served space and within the operating parameters of the furnace specifications.

2.Be installed in accordance of National Fire Protection Association as outlined in NFPA standard 90B (latest editions) or applicable national, provincial, state, and local fire and safety codes.

3.Create a closed duct system. For residential and non-HUD Modu- lar Home installations, when a furnace is installed so that the sup- ply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air shall also be handled by a duct(s) sealed to the furnace casing and terminating outside the space containing the furnace.

4.Complete a path for heated or cooled air to circulate through the air conditioning and heating equipment and to and from the condi- tioned space.

The cooling coil must be installed in the supply air duct, down- stream of the furnace. Cooled air may not be passed over the heat exchanger.

When the furnace is used with a cooling coil, the coil must be installed parallel with, or in the supply air side of the furnace to avoid condensa- tion in the primary heat exchanger. When a parallel flow arrangement is used, dampers or other means used to control airflow must be ade- quate to prevent chilled air from entering the furnace. If manually oper- ated, the damper must be equipped with means to prevent the furnace or the air conditioner from operating unless the damper is in full heat or cool position.

When replacing an existing furnace, if the existing plenum is not the same size as the new furnace then the existing plenum must be removed and a new plenum installed that is the proper size for the new furnace. If the plenum is shorter than 12” (30.5 cm) the turbulent air flow may cause the limit controls not to operate as designed, or the limit con- trols may not operate at all.

The duct system is a very important part of the installation. If the duct system is improperly sized the furnace will not operate properly.

The ducts attached to the furnace plenum, should be of sufficient size so that the furnace operates at the specified external static pressure and within the air temperature rise specified on the nameplate.

The minimum plenum height is 12” (30.5 cm). The furnace will not operate properly on a shorter plenum height. The minimum recommended rectangular duct height is 4” (10.2 cm) attached to the plenum.

If a matching cooling coil is used, it may be placed directly on the fur- nace outlet and sealed to prevent leakage. If thermoplastic evaporator ‘A’ coil drain pans are to be installed in the upflow/horizontal configura- tion, then extra 2” (5.1 cm) minimum spacing may be needed to ensure against drain pan distortion.

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Johnson Controls Unitary Products

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Contents Section I Safety List of SectionsList of Figures List of TablesSafety Requirements Specific Safety Rules and PrecautionsCombustion AIR Quality List of Contaminants Inspection Codes and StandardsDirectly BELOW. Keep Clear of ALL OBSTRUC- Tions Furnace Location and Clearances Section II DuctworkDuctwork General Information Floor Base and Ductwork Installation Downflow Coil InstallationCOIL/FURNACE Assembly MC/FC/PC Series Coils Furnace Assembly MC & FC Series CoilsFurnace Assembly MC Series Coils only Furnace Assembly PC Series CoilsCoil / Furnace Assembly HC Series Coils Coil Size Dimension C InchDownflow Duct Connectors Attic Installation Bottom Return and Attic InstallationsSuspended Furnace / Crawl Space Installation Horizontal ApplicationFilter Installation Attempt to install filters inside the furnaceSection III Filters Side ReturnSection IV GAS Piping Section V Electrical Power Electrical Power ConnectionsManifold Pressures in. w.c Manifold Pressures kPa First Stage Manifold Pressures in. w.cLOW Voltage Control Wiring Connections Supply Voltage ConnectionsAfue LbsAC 9A TWO Stage Variable Speed Furnace OD Models AC 24C Optional HarnessID Models OD Models Accessory Connections Electronic AIR Cleaner ConnectionHumidifier Connection TwinningCondensate Drain Termination Condensate Drain Trap and Drain Freeze ProtectionWill cause the furnace Airflow Horizontal Left Horizontal Right Inducer AS Received Section VII Combustion AIR and Vent System Combustion AIR and Vent SafetyCombustion AIR/VENT Pipe Sizing Combustion AIR and Vent Piping Assembly Combustion AIR / VentingFitting Equivalent Length Furnace Vent Connection SizesVent Clearances Home LayoutVent Applications and Termination Vent SystemVenting Multiple Units Combustion AIR Supply Outdoor Combustion AirCombustion Air Source From Outdoors Ambient Combustion Air SupplyAir Supply Openings and Ducts Free AreaVertical Duct or 13 cmSpecially Engineered Installations Ventilated Combustion AirVentilated Combustion Air Termination Vent Blower RotationSection Viii START-UP Adjustments GAS Piping Leak CheckIgnition System Sequence Calculating the Furnace Input Natural GASSeconds For Seconds For Size of Test Dial Revolution Cu FtRevolution Cu Ft Adjustment of Manifold GAS Pressure & Input Rate Read the inlet gas pressureRead the manifold gas pressure Inlet GAS Pressure RangeSection IX Safety Controls Limit Controls Sequence of OperationTroubleshooting Furnace Control DiagnosticsHot Surface Ignition System Slow Green Flash Normal operationDiagnostic Fault Code Storage and Retrieval Replacement Part Contact Information Section X Replacement Parts ListDescription Section XI Wiring Diagram Johnson Controls Unitary Products York Drive Norman, OK Supersedes 438335-UIM-A-0209

TM9V MP specifications

The Johnson Controls TM9V MP is a cutting-edge variable capacity air conditioning system designed to provide optimal comfort and energy efficiency for residential and light commercial applications. This model is engineered with advanced technologies that cater to the needs of modern consumers who prioritize both performance and sustainability.

One of the standout features of the TM9V MP is its variable-speed compressor. Unlike traditional systems that operate at a fixed speed, this system can adjust its output based on the indoor temperature and humidity levels. This capability allows for precise temperature control and reduces energy consumption, ultimately leading to significant savings on utility bills. By maintaining a more consistent temperature, the TM9V MP enhances overall comfort in living spaces.

Another critical aspect of the TM9V MP is its integration of intelligent control technology. The system comes equipped with a user-friendly interface, which enables homeowners to easily monitor and adjust settings according to their preferences. Smart home integration is also a key feature, allowing for remote access and control through compatible smart devices. This ensures that users can manage their HVAC settings from anywhere, providing convenience and peace of mind.

The TM9V MP is also designed with high-efficiency ratings, often achieving SEER ratings above 18. This excellent performance not only complies with stringent energy efficiency regulations but also qualifies for various rebates and incentives in many regions, making it a financially attractive choice. The unit’s environmentally friendly refrigerant further emphasizes its commitment to sustainability.

In terms of construction and durability, the TM9V MP boasts a rugged design with high-quality components. Its enhanced sound insulation minimizes operational noise, making it suitable for residential settings where quiet operation is essential. The unit is also designed for easy installation and maintenance, which can further reduce lifecycle costs.

Overall, the Johnson Controls TM9V MP represents a blend of advanced engineering, energy efficiency, and user-friendly technology. Its variable speed compressor, smart controls, high-efficiency ratings, and durable construction make it a top choice for anyone seeking an HVAC solution that meets modern comfort and sustainability standards. With the TM9V MP, users can enjoy the benefits of a comfortable indoor environment while contributing to a greener future.