F8AUH

Gas Furnaces – Up-Flow / Horizontal

45,000 to 120,000 Btuh (13.2 to 35.2 kW) Heating Capacity

1 through 5 Tons (3.5 to 17.6 kW) Add-On Cooling

User’s Information Manual

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

503,995M

06/99 Supersedes 05/99

Table of Contents

Important Directions

2

Venting System Inspection

5

Lighting Information and Operation

3

Flame Rollout Safety Switches

5

Filters

4

Safety Reminder

5

Blower

5

Safety Precautions

5

Burner Flame

5

Planned Service

6

Model Number Identification

F 8 A UH * * 24 045 X 2 V

NOTE - Shaded area denotes part of model no. referenced in publication.

 

 

 

 

 

 

 

 

 

 

 

 

 

Furnace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AFUE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 - 80%

 

 

 

 

 

 

 

 

 

 

9 - 90%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Generation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UF - Up-Flow

 

 

 

 

 

 

 

 

 

Cabinet Color

 

 

DF - Down-Flow

 

 

 

 

 

 

L - Beige

 

 

HZ - Horizontal

 

 

 

 

 

 

G - Gray

 

 

MP- Multi-Position

 

 

 

 

 

 

B - Brown

 

 

DH- Downflow/Horizontal

 

 

 

 

 

 

R - Green

 

 

UH- Up-Flow/Horizontal

 

 

 

 

 

 

S - Silver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blower Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gas Valve

 

 

 

V - Variable Speed Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blank - Multi6Speed Motor

 

 

 

 

 

 

 

 

2 - Two Stage Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blank 6 Single Stage Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Options

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Btuh Input (kW)

 

 

X - Low NOx

 

 

 

 

 

 

 

 

 

045 - 45,000 (13.2)

 

 

P - LPG/Propane Gas

 

 

 

060 - 60,000 (17.6)

 

 

S - Stainless Steel Heat Exchanger

 

 

 

075 - 75,000 (22.0)

 

 

Z - Stainless Steel Heat Exchanger/Low NOx

 

 

 

100 - 100,000 (29.3)

 

 

Blank - No options

 

 

 

 

 

 

120 - 120,000 (35.1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Additive Cooling (Nominal)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Door Color

 

 

 

 

18

- 1.5 Ton ( kW)

 

 

 

 

 

 

 

 

24

- 2 Ton ( kW)

 

 

 

 

L - Beige

 

 

 

 

 

 

 

 

 

 

 

 

30

- 2.5 Ton ( kW)

 

 

 

 

G - Gray

 

 

 

 

 

 

 

 

 

 

 

 

36

- 3 Ton ( kW)

 

 

 

 

B - Brown

 

 

 

 

 

 

 

 

 

 

 

 

42

- 3.5 Ton ( kW)

 

 

 

 

R - Green

 

 

 

 

 

 

 

 

 

 

 

 

48

- 4 Ton ( kW)

 

 

 

 

S - Silver

 

 

 

 

 

 

 

 

 

 

 

 

60

- 5 Ton ( kW)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WARNING

 

If the information in this manual is not

 

followed exactly, a fire or explosion

 

may result causing property damage,

FBR 113270

personal injury or death.

 

Do not store or use gasoline or oth4

WHAT TO DO IF YOU SMELL GAS:

er flammable vapors and liquids in

Do not try to light any appliance.

the vicinity of this or any other ap4

Extinguish any open flames.

pliance.

Do not touch any electrical switch; do not

 

Installation and service must be

use any phone in your building.

performed by a qualified installer,

Immediately call your gas supplier from a

service agency or the gas supplier.

neighbor's phone. Follow the gas suppli4

 

er's instructions.

 

If you cannot reach your gas supplier, call

 

the fire department.

1

1999

 

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Lennox International Inc F8AUH manual Table of Contents, Model Number Identification

F8AUH specifications

Lennox International Inc, a notable player in the HVAC (heating, ventilation, and air conditioning) industry, has made significant strides in providing innovative climate control solutions. One of their standout products is the F8AUH air handler, designed to enhance both residential and commercial environments through advanced technology and superior performance.

The F8AUH air handler is characterized by its exceptional energy efficiency. It is equipped with a variable speed motor that adjusts air flow according to the specific needs of the space, significantly reducing energy consumption over traditional single-speed motors. This efficient operation not only translates to lower utility bills for consumers but also promotes environmental sustainability in line with global energy conservation goals.

In terms of design, the F8AUH is noted for its compact size and versatility. It can be easily integrated into existing HVAC systems or used as a standalone unit. The unit features a sleek, modern design that allows it to blend seamlessly into a variety of indoor environments without compromising aesthetics. It is suitable for installation in tight spaces, making it an ideal choice for urban dwellings where space can be at a premium.

The F8AUH also boasts advanced filtration capabilities. It comes equipped with a MERV 16 filter, which efficiently traps dust, allergens, and other particles, contributing to improved indoor air quality. This feature is particularly beneficial for households with allergy sufferers or for commercial environments where air quality is paramount.

Technologically, the F8AUH integrates seamlessly with smart home technologies. It can be remotely controlled via smartphone applications, allowing users to adjust settings from anywhere. This smart technology not only provides convenience but also enables users to monitor energy usage and optimize performance based on real-time data.

Furthermore, Lennox places a strong emphasis on reliability and durability in the design of the F8AUH. The unit is constructed with high-quality materials that can withstand various environmental conditions. This durability ensures a longer lifespan, reducing the need for frequent replacements.

In summary, the Lennox International Inc F8AUH air handler stands out for its energy efficiency, compact design, advanced filtration, and smart technology integration. These features collectively underscore Lennox's commitment to providing high-quality, innovative HVAC solutions that enhance indoor comfort while promoting energy conservation and sustainability.