Removing the Bottom Panel
Remove the two screws that secure the bottom cap to the furnace. Pivot the bottom cap down to release the bottom panel. Once the bottom panel has been removed, reinstall the bottom cap. See figure 11.
Removing the Bottom Panel

Optional Return Air Base

(Upflow Applications Only −− For use with B, C and D cabinets only)

AIR FLOW

14

(356)

FURNACE

FRONT

7−1/4 (184)

4

 

1 23 (584)

 

 

(102)

 

Overall

1 Minimum

 

 

(Maximum)

11 (279)

1 22−7−16

 

 

2 Maximum

 

1 Unit side return air

14 (356)

(570)

 

 

Opening

 

Overall

 

 

 

 

 

 

 

 

(Maximum)

 

5−5/8

SIDE RETURN

 

 

AIR OPENINGS

 

 

(143)

 

 

(Either Side)

 

 

 

 

 

 

 

 

OPTIONAL RAB

 

 

17−1/2 (446) RAB−B (98M60)

 

 

 

 

 

 

 

RETURN AIR BASE

7/8

 

21 (533) RAB−C (98M58)

 

 

 

 

 

 

 

24−1/2 (622) RAB−D (98M59)

(22)

 

FRONT VIEW

23 (584)

3/4

(19)

 

27−5/8 (702)

 

SIDE VIEW

NOTE− Optional Side Return Air Filter Kits are not for use with RAB Return Air Base.

1Both the unit return air opening and the base return air opening must be covered by a single plenum or IAQ cabinet. Minimum unit side return air opening dimensions for units requiring 1800 cfm or more of air (W x H): 23 x 11 in.

(584 x 279 mm).

The opening can be cut as needed to accommodate plenum or IAQ cabinet while maintaining dimensions shown. Side return air openings must be cut in the field. There are cutting guides stenciled on the cabinet for the side return air opening. The size of the opening must not extend beyond the markings on the furnace cabinet.

2To minimize pressure drop, the largest opening height possible (up to 14 inches) is preferred. NOTE− Optional Side Return Air Filter Kits are not for use with RAB Return Air Base.

FIGURE 9

G61MP applications which include side return air and a condensate trap installed on the same side of the cabinet require either a return air base or field−fabri- cated transition to accommodate an optional IAQ ac- cessory taller than 14.2".

Side Return Air

(with transition and filter)

20" X 25" X 1"

(508mm X635mm X 25mm)

Air Filter

Return

Screw

 

Air

 

Plenum

Bottom Cap

Transition

Bottom Panel

 

FIGURE 10

FIGURE 11

 

Page 11

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Image 11
Lennox International Inc G61MP Series Units, Gas Units installation instructions Front View, Furnace Front
Page 10 Page 12

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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