Lennox International Inc Gas Units, G61MP Series Units Or Heat Demand is SATISFIED. a Five

Page 60

Troubleshooting: Heating Sequence of Operation (Continued)

HEATING SEQUENCE OF OPERATION

CONTINUED

SEE BOX A

NORMAL OPERATION.

SEE BOX B

THERMOSTAT CALLS FOR HEAT.

 

 

 

 

 

 

 

 

 

 

 

RETURN TO FIRST−STAGE HEAT MODE.

 

 

 

 

 

 

 

 

 

 

 

 

 

FIRST−STAGE CONTINUES UNTIL SECOND−

 

 

 

 

 

 

 

 

 

 

 

 

 

STAGE PRESSURE SWITCH CAN BE PROVEN

 

 

 

SECOND−STAGE (HIGH FIRE) HEAT

 

NO

 

 

YES

 

 

 

 

or HEAT DEMAND IS SATISFIED. A FIVE (5)

 

PRESSURE SWITCH CLOSED?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MINUTE WAIT PERIOD IS INITIATED BEFORE

 

 

 

YES

 

 

 

 

 

 

 

 

RETRY. WERE 5 ATTEMPTS MADE FOR

 

 

 

 

 

 

 

 

 

 

 

 

SECOND−STAGE HEAT?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT DEMAND SATISFIED?

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

STATUS LED −− HEARTBEAT.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE BOX C

 

 

 

 

 

 

 

 

 

 

 

 

 

FIRST−STAGE HEAT DEMAND SATISFIED?

 

 

 

YES

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SINGLE−STAGE THERMOSTAT MODE

 

 

 

TWO STAGE THERMOSTAT MODE?

 

 

 

 

 

 

 

 

 

 

(DIP SWITCH SET AT

 

 

 

 

(DIP SWITCH SET AT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SECOND STAGE HEAT

 

 

GAS VALVE OFF, COMBUSTION AIR

 

 

YES

FIRST AND SECOND STAGE HEAT

 

NO

 

DEMAND SASTISFIED?

 

 

INDUCER OFF AFTER 5−SECOND

 

 

DEMAND SATISFIED SIMULTANEOUSLY.

 

 

STATUS LED −− HEARTBEAT.

 

 

 

 

 

 

 

 

LOW SPEED POST PURGE PERIOD,

 

 

 

 

STATUS LED −− HEARTBEAT.

 

 

 

 

 

 

 

 

 

 

INDOOR BLOWER OFF DELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INITIATED ON LOW HEAT SPEED.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

STATUS LED −− HEARTBEAT.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS VALVE, COMBUSTION AIR INDUCER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AND INDOOR BLOWER RETURN TO FIRST−

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STAGE OPERATION.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STATUS LED −− HEARTBEAT.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIRST STAGE HEAT DEMAND SATISFIED?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DEMAND FOR HEAT SATISFIED.

 

 

 

 

 

 

 

 

GAS VALVE OFF. COMBUSTION AIR INDUCER

 

 

 

 

 

 

 

 

 

 

OFF AFTER 5−SECOND LOW SPEED POST−

 

 

POWER ON STAND BY.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PURGE PERIOD. INDOOR BLOWER OFF.

 

 

STATUS LED −− PULSE.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DELAY INITIATED ON LOW HEAT SPEED.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STATUS LED −− PULSE.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 60

Page 59 Page 61
Image 60
Page 59 Page 61
Contents Installation Instructions Table of ContentsG61MP Unit Dimensions − inches mm TOP ViewFront View Side View Glass Assembly G61MP Parts ArrangementTOP CAP Sight BlowerSafety Information Direct Vent Installation NON−DIRECT VentInstallation G61MP Gas FurnaceUse of Furnace as Construction Heater General Combustion, Dilution & Ventilation AirEquipment in Confined Space − ALL AIR from Inside Installation − Setting Equipment Equipment operationEquipment in Confined Space − ALL AIR from Outside Setting Equipment Front ViewSide View END ViewUpflow Applications Refer to Engineering Handbook for additional informationFront View Furnace FrontSetting an Upflow Unit Leveling BoltFurnace Locations Bottom Leveling Bolt NON−COMBUSTIBLE Floor Opening SizeAdditive Base Floor Opening Size Side ViewBlower Access Panel Typical Horizontal Ceiling ApplicationINTAKE/EXHAUST Connection Support Frame Drain PAN Exhaust Pipe GAS Connector MIN Raised Platform Condensate Line Service PlatformIntake Pipe Pipe & Fittings Specifications Piping and Fittings SpecificationsFilters Duct SystemOutdoor Termination Kits and Corresponding Equivalencies Model DIAVent Piping Guidelines Minimum Vent Pipe Lengths Maximum Vent Pipe LengthsJoint Cementing Procedure Plastic strapping or a large wire tie Venting PracticesMAX 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 Inside Corner Detail Inches 305mm or 12 in mmUS Installations1 Canadian Installations2 Exhaust Pipe Termination Size Reduction G61MPDirect Vent Roof Termination KIT TOP View Wall Ring KIT with Straight IntakeFront View Using Existing Chimney ANGLE−CUT in Direction G61MP Direct Vent ApplicationG61MP NON−DIRECT Vent Application Using Existing Chimney Condensate PipingSide View NON−DIRECT Vent Wall Ring Termination Condensate Assembly Coupling CLEAN−OUT Access−RINGS CAP HI/LO Screws Vent Nipple TEEGas Piping Furnace Isolate GAS ValveHorizontal Applications Possible Gas Piping Configerations GAS Pipe Capacity − FT3/HR kL/HRPrecautions and Procedures Interior MAKE−UP BOX InstallationElectrical Electrostatic Discharge ESDTypical G61MP Field Wiring Diagram Heat / 2 Cool Cut Intact OFF Cut Intact= 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 White Rodgers 36E Series GAS Valve Honeywell VR8205 Series GAS ValveGas Pressure Adjustment Urning Off Gas to Unit and call your service techniIf the appliance will not operate, follow the instructions High Altitude Information Order TWO EachOther Unit Adjustments Carbon Monoxide Poisoning HazardPage Blower Performance Data 270In. 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 Service Electrical SHOCK, Fire Or Explosion HazardPage Planned Service Ignition Control Board Diagnostic Codes Flash Code Status / Error Description+ Y Troubleshooting Heating Sequence of Operation On NextHeating Sequence of Operation Thermostat Calls for Heat Status LED − HeartbeatU1.40 microamps Or Heat Demand is SATISFIED. a Five Troubleshooting Cooling Sequence of Operation Cooling Sequence of OperationTroubleshooting Continuous Fan Sequence of Operation Repair Parts ListContinuous LOW Speed FAN Sequence of Operation Heat Anticipator Setting? Thermostat Level? Vent Pipe Sizing WorksheetG61MP Start−Up & Performance Check List − LP/Propane High Fire Manifold PressureRequirements for Commonwealth of Massachusetts LY BELOW. Keep Clear of ALL OBSTRUC- Tions
Related manuals
Manual 8 pages 10.79 Kb

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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