Lennox International Inc specifications G61MP Direct Vent Application

Page 27

 

12" (305) MAX. for 2" (51)

 

 

 

 

20" (508) MAX. for 3" (76)

Inches (mm)

 

 

 

(unless supported)

12"

COVER EXHAUST

 

 

 

(305)

VENT WITH

 

 

EXHAUST

 

1/2" (13)

 

 

 

FOAM

 

 

AIR

 

 

 

 

INSULATION

INTAKE

8" (203)

 

INTAKE

 

 

AIR

Minimum

 

AIR

EXHAUST

 

 

 

 

 

 

12" (305)

 

AIR

 

 

Minimum

5"

12" MIN.

 

 

ABOVE GRADE

(127)

(305)

 

 

 

 

Above Grade

 

 

 

5-1/2"

 

GRADE

Side View

 

(140)

 

 

 

GRADE

 

 

 

 

 

 

 

 

Front View

 

 

DIRECT VENT TERMINATION

 

 

WALL TERMINATION KIT (22G44, 44J40, 30G28 or 81J20) EXTENDED VENT FOR GRADE CLEARANCE

FIGURE 27

G61MP DIRECT VENT APPLICATION

STRAIGHT−CUT OR

USING EXISTING CHIMNEY ANGLE−CUT IN DIRECTION

OF ROOF SLOPE *

 

 

 

 

 

 

3" − 8"

 

EXHAUST VENT

 

8" − 12"

 

(76mm−

 

1/2" (13mm)

 

(203mm − 305mm)

203mm)

 

 

 

WEATHERPROOF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INSULATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SHOULDER OF FITTINGS

 

 

 

INTAKE PIPE

 

 

 

 

INSULATION (optional)

 

 

 

PROVIDE SUPPORT

 

 

 

 

 

 

 

 

OF PIPE ON TOP PLATE

 

 

 

 

 

 

 

 

 

 

 

SHEET

 

 

 

 

 

 

 

 

 

ALTERNATE

 

 

 

 

 

 

 

 

METAL TOP

 

 

 

 

 

 

 

 

 

 

 

INTAKE PIPE

 

 

 

PLATE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MINIMUM 12"

 

 

 

 

 

 

 

 

(305mm) ABOVE

 

 

 

 

 

 

 

 

ROOF

 

 

 

 

3" − 8"

 

 

 

 

 

 

 

 

 

(76mm−

 

 

 

 

 

 

 

 

 

 

 

INSULATE

 

 

 

 

203mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXTERIOR

 

 

 

TO FORM

 

 

 

 

 

 

 

 

 

 

 

 

 

PORTION OF

 

 

 

SEAL

 

 

 

 

 

 

 

 

 

 

 

 

 

CHIMNEY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*SIZE TERMINATION PIPE PER TABLE 14.

NOTE − Do not discharge exhaust gases directly into any chimney or vent stack. If ver- tical discharge through an existing unused chimney or stack is required, insert piping inside chimney until the pipe open end is above top of chimney and terminate as illus- trated. In any exterior portion of chimney, the exhaust vent must be insulated.

Inches(mm)

SIZE TERMINATION

 

PIPE PER TABLE

 

14.

12" (305mm)

ABOVE AVE.

SNOW

ACCUMULATION

3" (76) OR

2" (51) PVCUNCONDITIONED ATTIC SPACE

PROVIDE SUPPORT

FOR EXHAUST LINES

NON−DIRECT VENT ROOF TERMINATION KIT

(15F75 or 44J41)

FIGURE 29

FIGURE 28

Details of Exhaust Piping Terminations for Non-Direct Vent Applications

Exhaust pipes may be routed either horizontally through an outside wall or vertically through the roof. In attic or closet installations, vertical termination through the roof is pre- ferred. Figures 29 through 32 show typical terminations.

1. Exhaust piping must terminate straight out or up as

shown. The termination pipe must be sized as listed in

table 14.The specified pipe size ensures proper ve-

locity required to move the exhaust gases away from

the building.

1/2" (13) ARMAFLEX

INSULATION IN

UNCONDITIONED SPACE

FIELD−PROVIDED REDUCER MAY

BE REQUIRED TO ADAPT LARGER VENT PIPE SIZE

TO TERMINATION

Inches (mm)

12" (305) Max. for 2" (51) Unless Supported

1/2" (13)

ARMAFLEX INSULATION

PVC REDUCER

SIZE TERMINATION

PIPE PER TABLE 14.

2. On field supplied terminations for side wall exits, ex-

haust piping should extend a maximum of 12 inches

(305mm) beyond the outside wall, unless support is

provided in the horizontal section. See figure 30.

TOP VIEW

NON−DIRECT VENT WALL RING KIT

(15F74)

FIGURE 30

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Contents G61MP Table of ContentsSpecifications Optional Accessories − Must be Ordered ExtraAfue Direct Vent G61MP−36B−045 Performance Less Filter Blower Data1495 2340 1285 1385 2410 Sight Blower Glass AssemblyG61MP Parts Arrangement TOP CAPIntegrated Control Board A92 Door Interlock Switch S51Circuit Breaker CB8 −Control Box Control Transformer T1Page Integrated Control Board 5 Pin Terminal TWO−STAGE Integrated Control BoardIntegrated Control Board Terminals 120VAC Neutral 120VAC LineSupply AIR Blower −Blower Compartment Blower Motor B3 and Capacitor C4Secondary Limit Controls S21 DS1 DS2 DescriptionIgnitor Bracket Burners Front View Burners TOP View −Heating Components Flame SensorIgnitor Burners FigurePrimary Limit Control S10 Flame Rollout Switches S47Combustion Air Inducer Prove Switch S18 Clamshell Heat ExchangerDual Combustion AIR Prove Switch CAI & Cold END Header BOX AssemblyFirst stage Negative Pressure Second stage Positive Combustion Air Inducer B6 Outdoor Termination Kits and Corresponding Equivalencies II−PLACEMENT and Installation−Vent Piping Guidelines −PVC Joint Cementing Procedure Minimum Vent Pipe LengthsMaximum Vent Pipe Lengths Upflow or Downflow Direct or NON-DIRECT Vent Applications − Venting PracticesTypical Exhaust Pipe Connections Reducer Direct Vent applications where combustion air is takenFrom indoors and flue gases are discharged outdoors Reducer PlugSweep ELL Carbon Monoxide Poisoning HazardPage − G61MP Vent Termination − AIR Inlet of Other Appliance Exhaust Pipe Termination Size Reduction Side View Front ViewG61MP 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 −RINGS CAP HI/LO Screws Condensate AssemblyVent Nipple TEE Screw Coupling CLEAN−OUT Access Hose clampFor Your Safety Read Before Operating −Preliminary and Seasonal Checks−Heating Start-Up −Extended Period Shutdown −Safety or Emergency ShutdownIV−HEATING System Service Checks A−C.S.A. Certification −Testing Gas Piping− Proper Combustion −Testing Gas Supply Pressure−Check Manifold Pressure − Proper Gas Flow Approximate− Condensate pH Range − High Altitude−Flame Signal −Temperature Rise−External Static Pressure −Blower Speed Taps VI−MAINTENANCEPage Page VII− Wiring and Sequence of Operation Sequence of Operation On Next Heating Sequence of Operation Normal Operation DS1 and DS2 Simultaneous Slow Flash YES See BOX a LOW Flame Signal YESEN or Heat Demand is SATISFIED. a Five Cooling Sequence of Operation Continuous LOW Speed FAN Sequence of Operation VIII− Field Wiring Applications and Jumper Settings SingleTWO Transformer Cool− Diagnostic lights flash the roll−out − Both diagnostic lights fail to light upLED#2−Off Miswiring of furnace or improper con Door interlock switch failureConnections at limit switches Uous fan demand Primary, secondary or backup secon− Diagnostic lights flash the limit failure mode LED#1−Slow Flash Miswiring of furnace or improperProve switch does not close due to a Switch failure code 2.5 minutes afterLED#1−Off Prove switch lines damaged Condensate in prove switch line− After 5 tries the control diagnostics Terminating the unit − Diagnostic lights flash the pressureSwitch code With a heating demand Installed− Combustion air inducer energizes − Roll−out switch trips during− Diagnostic lights flash roll−out fail Fails to stay lit Operation. Problem is characterizedSensor rod is contaminated Mode Er motorNostic lights flash low flame sense Burner LED#1−Slow FlashService Notes

G61MP specifications

Lennox International Inc. has long been a leader in HVAC solutions, and the G61MP gas furnace exemplifies the company's commitment to innovation and energy efficiency. This high-efficiency gas furnace operates with an Annual Fuel Utilization Efficiency (AFUE) of up to 96%, allowing homeowners to save significantly on energy costs while maintaining a comfortable indoor environment.

One of the primary features of the G61MP is its modulating gas valve. This technology enables the furnace to operate at multiple levels of heating output, ensuring that it can adjust its performance according to the home’s heating demands. By modulating the heating output, the G61MP maximizes efficiency and minimizes energy waste, providing a consistent temperature and improved comfort.

The G61MP also incorporates advanced two-stage heating, which enhances its performance by reducing temperature fluctuations in the home. This feature is especially beneficial during transitional weather periods when heating needs may vary widely. With its ability to operate on a lower stage most of the time, the furnace can produce quieter operation and reduced energy consumption.

In terms of design, the G61MP includes a sealed combustion chamber that draws air from outside the home for combustion, enhancing safety and efficiency. This design feature eliminates the need for indoor air, improving indoor air quality. The furnace is also equipped with a high-efficiency ECM blower motor that not only boosts comfort but operates quietly and uses less electricity compared to traditional motors.

Further enhancing its efficiency, the G61MP utilizes a variable-speed blower, which allows for precise control of airflow throughout the home. This results in better humidity control and improved air distribution, providing an overall more comfortable environment.

The Lennox G61MP is compatible with the iComfort S30 smart thermostat, allowing homeowners to control their heating remotely, adjust settings based on their schedules, and access energy usage data. This connectivity transforms the G61MP into an integral part of a smart home ecosystem, facilitating energy conservation and comfort optimization.

Lastly, the G61MP is designed with durability in mind. Its robust construction and high-quality materials ensure reliable performance and lengthy service life. Homeowners can feel assured that they are investing in a heating solution that will meet their needs for many winters to come. In summary, the Lennox G61MP gas furnace stands out with its high efficiency, advanced technology, and user-friendly features, making it a top choice for homeowners seeking exceptional heating performance.
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