Lennox International Inc G61MP Series Units Setting Equipment, Front View, Side View, END View

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UPFLOW APPLICATION

AIR FLOW

FRONT VIEW

UNIT

FRONT

AIR FLOW

SIDE VIEW

SETTING EQUIPMENT

UNIT MUST BE LEVEL SIDE−TO−SIDE IN ALL APPLICATIONS.

HORIZONTAL APPLICATION

AIR FLOW

FRONT VIEW

UNIT

FRONT

1/2" max.

END VIEW

1/2"

max.

UNIT SHOULD BE LEVEL FROM LEFT TO RIGHT BUT MAY BE

TILTED SLIGHTLY (MAX. 1/2") FROM BACK TO FRONT TO AID IN THE DRAINING OF THE HEAT EXCHANGER.

DOWNFLOW APPLICATION

AIR FLOW

FRONT VIEW

AIR FLOW

UNIT

FRONT

1/2"

max.

SIDE VIEW

FIGURE 7

The unit must be level from side to side. The unit may be

tilted slightly (maximum 1/2 in.) from back to front to aid

in the draining of the heat exchanger. See figure 7.

NOTE − Units with 1/2 hp blower motors are equipped with

three flexible legs and one rigid leg. The rigid leg is equipped with a shipping bolt and a flat white plastic wash- er (rather than the rubber mounting grommet used with a

flexible mounting leg). The bolt and washer must be re- moved before the furnace is placed into operation. Af-

ter the bolt and washer have been removed, the rigid leg will not touch the blower housing.

WARNING

Blower access panel must be securely in place when blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal injury or death.

Allow for clearances to combustible materials as indicated

on the unit nameplate. Minimum clearances for closet or al-

cove installations are shown in figures 8, 13 and 17.

WARNING

Improper installation of the furnace can result in per- sonal injury or death. Combustion and flue products must never be allowed to enter the return air system or air in the living space. Use sheet metal screws and joint tape to seal return air system to furnace.

In platform installations with furnace return, the fur- nace should be sealed airtight to the return air ple- num. A door must never be used as a portion of the return air duct system. The base must provide a stable support and an airtight seal to the furnace. Al- low absolutely no sagging, cracks, gaps, etc.

For no reason should return and supply air duct sys- tems ever be connected to or from other heating de- vices such as a fireplace or stove, etc. Fire, explo- sion, carbon monoxide poisoning, personal injury and/or property damage could result.

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Contents Table of Contents Installation InstructionsG61MP Unit Dimensions − inches mm TOP ViewFront View Side View G61MP Parts Arrangement Glass AssemblyTOP CAP Sight BlowerDirect Vent Installation NON−DIRECT Vent Safety InformationInstallation G61MP Gas FurnaceUse of Furnace as Construction Heater Combustion, Dilution & Ventilation Air GeneralEquipment in Confined Space − ALL AIR from Inside Installation − Setting Equipment Equipment operationEquipment in Confined Space − ALL AIR from Outside Front View Setting EquipmentSide View END ViewRefer to Engineering Handbook for additional information Upflow ApplicationsFurnace Front Front ViewLeveling Bolt Setting an Upflow UnitFurnace Locations Bottom Leveling Bolt NON−COMBUSTIBLE Floor Opening SizeSide View Additive Base Floor Opening SizeBlower Access Panel Typical Horizontal Ceiling ApplicationINTAKE/EXHAUST Connection Support Frame Drain PAN Exhaust Pipe GAS Connector MIN Raised Platform Condensate Line Service PlatformIntake Pipe Piping and Fittings Specifications Pipe & Fittings SpecificationsFilters Duct SystemModel DIA Outdoor Termination Kits and Corresponding EquivalenciesVent Piping Guidelines Maximum Vent Pipe Lengths Minimum Vent Pipe LengthsJoint Cementing Procedure Venting Practices Plastic strapping or a large wire tieMAX Plug TrapTypical Exhaust Pipe Connections Direct Vent applications where combustion air is taken From indoors and flue gases are discharged outdoorsTransition Sweep ELL Intake Debris Screen Page Inches 305mm or 12 in mm Inside Corner DetailUS Installations1 Canadian Installations2 G61MP Exhaust Pipe Termination Size ReductionDirect Vent Roof Termination KIT TOP View Wall Ring KIT with Straight IntakeFront View G61MP Direct Vent Application Using Existing Chimney ANGLE−CUT in DirectionG61MP NON−DIRECT Vent Application Using Existing Chimney Condensate PipingSide View NON−DIRECT Vent Wall Ring Termination Coupling CLEAN−OUT Access Condensate Assembly−RINGS CAP HI/LO Screws Vent Nipple TEEFurnace Isolate GAS Valve Gas PipingGAS Pipe Capacity − FT3/HR kL/HR Horizontal Applications Possible Gas Piping ConfigerationsInterior MAKE−UP BOX Installation Precautions and ProceduresElectrical Electrostatic Discharge ESDTypical G61MP Field Wiring Diagram Heat / 2 Cool Cut Intact Cut Intact OFF= Error Code Recall H= 24V Humidifier Output L= do not USE DIP Switches FunctionTWO−STAGE Integrated Control Board Integrated Control Board DIP Switch Settings and Jumpers Typical G61MP Wiring Diagram For Your Safety Read Before Operating Integrated Control BoardUnit Start−Up Honeywell VR8205 Series GAS Valve White Rodgers 36E Series GAS ValveGas Pressure Adjustment Urning Off Gas to Unit and call your service techniIf the appliance will not operate, follow the instructions Order TWO Each High Altitude InformationCarbon Monoxide Poisoning Hazard Other Unit AdjustmentsPage 270 Blower Performance DataIn. w.g High Low Cfm Watts 2840 1450 In. w.g High Low Cfm Watts 2720 1385 In. w.g High Low Cfm Watts 2730 1465 Heating Sequence of Operation Electrical SHOCK, Fire Or Explosion Hazard ServicePage Planned Service Ignition Control Board Diagnostic Codes Flash Code Status / Error Description+ Y On Next Troubleshooting Heating Sequence of OperationThermostat Calls for Heat Status LED − Heartbeat Heating Sequence of OperationU1.40 microamps Or Heat Demand is SATISFIED. a Five Cooling Sequence of Operation Troubleshooting Cooling Sequence of OperationTroubleshooting Continuous Fan Sequence of Operation Repair Parts ListContinuous LOW Speed FAN Sequence of Operation Vent Pipe Sizing Worksheet Heat Anticipator Setting? Thermostat Level?G61MP Start−Up & Performance Check List − LP/Propane High Fire Manifold PressureLY BELOW. Keep Clear of ALL OBSTRUC- Tions Requirements for Commonwealth of Massachusetts
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G61MP Series Units, Gas Units specifications

Lennox International Inc. has established itself as a leader in the heating and cooling industry, and its G61MP Series Gas Units stand as a testament to the company's commitment to innovation and energy efficiency. These gas units are specifically designed for residential applications and are recognized for their reliability, performance, and advanced technology.

One of the main features of the G61MP Series is its variable speed motor, which offers significantly enhanced comfort over traditional single-stage gas units. This technology allows for precise temperature control and improved humidity management. By adjusting its speed according to the heating demand, the unit minimizes temperature fluctuations, leading to a more consistent indoor climate.

Another notable characteristic of the G61MP Series is its ECM blower motor, which operates quietly and efficiently. This motor not only reduces energy consumption but also enhances the overall comfort of the home by providing a steady flow of warm air without the disruptive noise often associated with traditional gas units.

The G61MP Series units are designed with a focus on energy efficiency, boasting an impressive Annual Fuel Utilization Efficiency (AFUE) rating. This rating indicates that these units convert a significant portion of the fuel they consume into usable heat, resulting in lower energy bills for homeowners. The units are equipped with a modulating gas valve that further optimizes fuel usage by adjusting the gas flow according to the heating needs of the home.

Safety is a paramount consideration in the design of the G61MP Series. These units are built with advanced safety features, including a self-diagnostic control system that continuously monitors the unit’s performance. This system alerts homeowners to any potential issues, allowing for proactive maintenance and ensuring the longevity of the equipment.

The G61MP Series is also designed for ease of installation and servicing. Its compact design allows for flexible placement in various home environments, while the user-friendly access panels simplify routine maintenance tasks.

In conclusion, Lennox International Inc.'s G61MP Series Gas Units deliver a combination of advanced technology, energy efficiency, and reliability, making them an excellent choice for homeowners looking to enhance their heating systems. With features designed to maximize comfort, minimize energy costs, and ensure safety, these units represent a significant advancement in residential heating solutions.
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