Intake Pipe

Lennox part number 56J18). Position the support frame on top of the blocks and install the unit on the frame. Leave 5−1/2 inches for service clearance for condensate trap.

3 − Route auxiliary drain line so that water draining from this outlet will be easily noticed by the homeowner. If necessary, run the condensate line into a condensate pump to meet drain line slope requirements. The pump must be rated for use with condensing furnaces. Protect the condensate discharge line from the pump to the outside to avoid freezing.

4 − Set unit in drain pan as shown in figure 19. Leave 5−1/2 inches for service clearance below unit for condensate trap.

5 − Continue with exhaust, condensate and intake piping installation according to instructions.

Unit Heater Discharge Duct Guidelines

A field−fabricated and installed discharge air duct and grille cabinet is suitable for use with the G61MP heater. Keep the following items in mind when constructing the cabinet.

1 − Outer dimensions of cabinet should match those of the unit heater, so the duct/grille cabinet installs flush with the unit heater cabinet. See figure 20.

2 − Flange both ends of duct/grille cabinet so that screws can be used to secure cabinet to discharge end of unit heater.

3 − To ensure proper operation, the duct/grille cabinet must be at least 18 inches long.

4 − Use #10−16 x 1/2 inch sheet metal screws to secure duct/grille cabinet to unit, taking care not to damage in- ternal components of unit heater when drilling holes or installing screws. See figure 20.

*Gas connector may be used for Canadian installation if accept- able by local authority having jurisdiction.

EXHAUST PIPE

*GAS

CONNECTOR

5 − Use adjustable, double−deflection grille(s) to distribute discharge air. Adjust static pressure to be in the 0.06 inch to 0.10 inch w.c. range.

18in.

MIN.

RAISED

PLATFORM

CONDENSATE LINE

SERVICE PLATFORM

FIGURE 19

G61MP Installed in Unit Heater Applications

The G61MP may also be installed as a unit heater. Either suspend the furnace from roof rafters or floor joists, as shown in figure 18, or install the furnace on a field−fabri- cated raised platform, as shown in figure 19. The unit must be supported at both ends and beneath the blower deck to prevent sagging. The condensate trap must be installed where it can be serviced at a later date.

DRAIN PAN (to protect finished space)

NOTE − When installing duct/grille cabinet, take care not to damage internal unit

heater components when drilling holes or installing screws.

FIGURE 20

Return Air −− Horizontal Applications

Return air may be brought in only through the end of a fur- nace installed in the horizontal position. The furnace is equipped with a removable bottom panel to facilitate installation. See figure 11.

Page 15

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.

Lennox International Inc G61MP Series Units, Gas Units Intake Pipe, Exhaust Pipe GAS Connector

Models: G61MP Series Units Gas Units

INTAKE PIPE