Lennox International Inc G50UH-60D-155, G50UH-48C-110 Mm at unit front. The unit must be level

Page 8

EQUIPMENT IN CONFINED SPACE

ALL AIR FROM OUTSIDE

CHIMNEY(All Air Through Ventilated Attic)

OR GAS

VENT_

VENTILATION LOUVERS (Each end of attic)

FURNACE

INLET AIR (Ends 12 in. above bottom)

HEATER

NO TE- The inlet and outlet air openings shall each have a free area of at least one square inch (645 mm 2) per 4,000 Btu (1.17 kW) per hour of the total input rating of all equip- ment in the enclosure.

FIGURE 4

A

_

EQUIPMENT IN

TT'_.

JJ_

CONFINED SPACE

I I "_'Y _

ALLAIRFROM

I 1

OUTLET AIR

,,

FURNACE

 

I1"-

I

ii

I

I

I

I

I

I

I

I

I

I

I

NOTE - Each air duct opening shall have a free area of at least

one square inch (645 mm 2J per 2, 000 Btu (.59 kW) per hour of the total input rating of all equipment in the enclosure. If the equipment room is located against an outside wall and the air openings communicate directly with the outdoors, each open- ing shall have a free area of at least one square inch (645 mm 2) per4,000 Btu (1.17 kW) per hour of the total input rating of all other equipment in the enclosure.

FIGURE 5

-&WARNING

The G50UH(X) gas furnace can be installed as shipped in either the upfiow position or the horizontal position, with right-hand or left-hand air discharge.

Select a location that allows for the required clearances that are listed on the unit nameplate. Also consider gas supply connections, electrical supply, vent connection, and installation and service clearances [24 inches (610

mm)at unit front]. The unit must be level.

NOTE - 1/3 hp blower motors are equipped with four flex- ible mounting legs. 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.

Upflow Applications

Allow for clearances to combustible materials as indicated

on the unit nameplate. Minimum clearances for closet or al- cove installations are shown in figure 6.

Upflow Application Installation Clearances

Top

Left Side

Right Side

Bottom

Type of Vent

Type C

Type

B1

Connector

 

 

 

 

Top

1 in, (25 ram)

1 in,

(25

ram)

*Front

3 in, (76 ram)

3 in,

(76

ram)

Back

0

 

0

 

Sides

Ot

 

0

 

Vent

6 in. (152 ram)

1 in.

(25

ram)

Floor

05

 

0J;

*Front clearance in alcove installation must be 24 in. (610 ram). Maintain a minimum of 24 in. (610 ram) for front service access. SFor installation on a combustible floor, do not install the furnace directly on carpeting, tile or other combustible materials other than wood flooring.

l-Leftside requires 3 inches ifa single wall vent is used on 14-1/2

inch cabinets, or 2 inches if a single wall vent is used on 17-1/2 inch cabinets.

FIGURE 6

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Contents G50UHX Series Supply AIR Gasket FlueTransition FlueBoxGasket HeatExchanger FlueCollectorBoxPackage 1 of 1 contains Wheninstalled,thisfurnacemustbeelectricallygrounded Canada,referto the standardCSAB149installation codes AcautionWiTER/ Room Air from InsideMm at unit front. The unit must be level Equipment in Confined Space ALL AIR from Outside27-5/8 Side View Front ViewLeveling Bolt Installation Inches mm Removingthe Bottom PanelRemoving the Bottom Panel Leveling an Upflow UnitHorizontal Application Unit Installed on Platform Filter Size Supply Air PlenumCombustion Air Inducer HoleVenting Using a Masonry Chimney OutletopeningSeefigure15Thelatesteditionof NationalFuelGasCodeNFPA54 Vent ConnectionCommon Venting Using Tile-Lined Interior Masonry Chimne Combined Vent ConnectorSingle appliance Minimum Vent capacityMaximum Horizontal Inches mm MIN MAX Serving a Single Category I Appliance Type B Double-WallVents with Type B Double-Wall Connectors Serving Two or More Category I AppliancesVent Removal of the Furnace from Common VentPropaneInstallationCodesinCanada Gas Pipe Capacity ft3/hr m3/hrPrecautions and Procedures Interior MAKE-UP BOX InstallationLeak Check Electrostatic Discharge ESDPowER @1HsuN,T INTERIORMAKE-UP BOX InstallationTypical G50UHX Field Wiring Diagram Zk for Correct Number of SecondaryG5OUHX SotFor Your Safety Read Before Lighting ManifoldHoneywell VR8205 Gas Valve with ON/OFF Switch RevolutionPrimary and Secondary Limits G50UHX Burner & Heat Exchanger Removal FlueAnd ChimneyCheckunitforproperdraft Ak Caution Diagnostic Normal Heating Mode Abnormal Heating Mode Surelight Control=-l YESlNormalcooling Mode Abnormalcooling Mode YESlYEs BlowerMotorAmps FurnaceBtuInput

G50UH-60D-155, G50UH-36B-090, G50UH-36A-070, G50UH-24A-045, G50UH-60D-135 specifications

Lennox International Inc is renowned for its high-quality heating, ventilation, and air conditioning (HVAC) solutions. Among its versatile product lineup are the G50UH series of gas furnaces, which exemplify efficiency and performance. These models, specifically the G50UH-24A-070, G50UH-24A-045, G50UH-36B-090, G50UH-36A-070, and G50UH-48C-135, offer a range of features tailored to meet varying residential heating demands.

One of the key features of the G50UH series is its energy efficiency. Many models in this lineup boast an impressive Annual Fuel Utilization Efficiency (AFUE) rating, which indicates their ability to convert fuel into usable heat efficiently. These high AFUE ratings can lead to significant savings on energy bills, making these furnaces a cost-effective choice for homeowners.

The G50UH series incorporates advanced technology, including multi-speed blowers that enhance comfort levels. This feature allows for better airflow control and can help maintain consistent temperatures throughout the home. The controlled airflow reduces temperature swings and ensures that every room benefits from the heating provided by the furnace.

Safety is paramount in Lennox designs, and the G50UH series is no exception. Each unit is equipped with safety features designed to protect both the furnace and the home. Dual certification ensures that the products meet stringent safety standards. Moreover, features like a self-diagnostic control board streamline maintenance, allowing homeowners to easily identify potential issues.

Another important characteristic of the G50UH series is its compact design, which is beneficial for homes with limited space. The units are designed to fit comfortably in various installation environments, from basements to utility rooms.

Durability is another hallmark of the G50UH furnaces. Constructed with quality materials, these units are designed for long-term reliability. This ensures that homeowners can enjoy the comfort of their heating systems without frequent repairs.

Lastly, Lennox provides extensive support and warranties, giving homeowners peace of mind associated with their purchase. With options tailored to meet diverse home heating needs, the Lennox G50UH series stands out in the HVAC market, combining efficiency, safety, and reliability in one impressive package.
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