VENT TERMINATION CLEARANCES

FOR DIRECT VENT INSTALLATIONS IN THE USA AND CANADA

INSIDE CORNER

DETAIL

G

D

 

A

 

H

 

 

 

 

 

 

 

E

 

 

 

 

 

B

 

 

 

L

C

B

B

I

 

Fixed

Operable

Fixed

M

 

Closed

 

Closed

 

 

 

 

F

 

 

 

 

Operable

 

 

 

 

B

 

K

 

 

 

J

 

 

A

 

 

B

 

 

 

 

 

 

 

VENT TERMINAL

AIR SUPPLY INLET

 

AREA WHERE TERMINAL

 

 

IS NOT PERMITTED

 

 

 

 

 

 

US Installations

1

Canadian Installations 2

A =

Clearance above grade, veranda,

12 inches (305mm) or 12 in. 305mm)

12 inches (305mm) or 12 in. 305mm)

 

porch, deck or balcony

above average snow accumulation.

above average snow accumulation.

B =

Clearance to window or

6 inches (152mm) for appliances <10,000

6 inches (152mm) for appliances <10,000

 

door that may be opened

Btuh (3kw), 9 inches (mm) for appliances

Btuh (3kw), 12 inches (305mm) for

 

 

> 10,000 Btuh (3kw) and <50,000 Btuh

appliances > 10,000 Btuh (3kw) and

 

 

(15 kw), 12 inches (305mm) for ap-

<100,000 Btuh (30kw), 36 inches (.9m)

 

 

pliances > 50,000 Btuh (15kw)

for appliances > 100,000 Btuh (30kw)

C =

Clearance to permanently

* 12"

 

* 12"

 

closed window

 

 

 

D =

Vertical clearance to ventilated soffit

* Equal to or greater than soffit depth

* Equal to or greater than soffit depth

 

located above the terminal within a

 

horizontal distance of 2 feet (mm)

 

 

 

 

from the center line of the terminal

 

 

 

E =

Clearance to unventilated soffit

* Equal to or greater than soffit depth

* Equal to or greater than soffit depth

F =

Clearance to outside corner

* No minimum to outside corner

* No minimum to outside corner

G =

Clearance to inside corner

*

 

*

H = Clearance to each side of center line ex-

3 feet (.9m) within a height 15 feet (4.5m)

3 feet (.9m) within a height 15 feet (4.5m)

tended above meter / regulator assembly

above the meter / regulator assembly

above the meter / regulator assembly

I =

Clearance to service regulator

* 3 feet (.9m)

 

3 feet (.9m)

 

vent outlet

 

 

 

J =

Clearance to non−mechanical air

6 inches (152mm) for appliances <10,000

6 inches (152mm) for appliances <10,000

 

supply inlet to building or the com-

Btuh (3kw), 9 inches (mm) for appliances

Btuh (3kw), 12 inches (305mm) for

 

bustion air inlet to any other ap-

> 10,000 Btuh (3kw) and <50,000 Btuh

appliances > 10,000 Btuh (3kw) and

 

pliance

(15 kw), 12 inches (305mm) for ap-

<100,000 Btuh (30kw), 36 inches (.9m)

 

 

pliances > 50,000 Btuh (15kw)

for appliances > 100,000 Btuh (30kw)

K =

Clearance to mechanical air sup-

3 feet (.9m) above if within 10 feet

6 feet (1.8m)

 

ply inlet

(3m) horizontally

 

 

L =

Clearance above paved sidewalk or

* 7 feet (2.1m)

 

 

paved driveway located on public property

 

 

 

 

 

M =

Clearance under veranda, porch,

 

 

 

 

deck or balcony

 

 

 

1In accordance with the current ANSI Z223.1/NFPA 54 Natural Fuel Gas Code

2 In accordance with the current CSA B149.1, Natura

l Gas and Prop ane Installation Code

between two single family dwellings and serves both dwellings.

sides beneath the floor. Lennox recommends avoiding this location if possible.

*For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, clear- ance will be in accordance with local installation c odes and the requirements of the gas supplier and these installation instructions."

FIGURE 24

Page 20 of 48

Issue 1109

506725-01

Page 20
Image 20
Allied Air Enterprises A95DF, 92G1DF, A93DF, 95G1DF dimensions No minimum to outside corner

A95DF, 95G1DF, A93DF, 92G1DF specifications

Allied Air Enterprises offers a range of high-efficiency commercial and residential heating and cooling systems, with models like the 92G1DF, A93DF, 95G1DF, and A95DF gaining popularity for their cutting-edge technology and advanced features. Each of these models stands out in performance, reliability, and energy efficiency, making them excellent choices for diverse applications.

The 92G1DF model features a multi-stage gas valve that enhances temperature regulation, allowing for more precise heating. With an impressive Annual Fuel Utilization Efficiency (AFUE) rating, this furnace efficiently utilizes fuel, resulting in lower energy costs and reduced emissions. Its compact design makes it suitable for installations in tight spaces, while the durable heat exchanger extends the unit’s lifespan.

In contrast, the A93DF is engineered for enhanced comfort and flexibility. This model incorporates a variable-speed blower motor, which adjusts air circulation according to the heating demands in the space. This feature not only maximizes comfort by providing consistent temperatures but also promotes energy savings by reducing unnecessary power consumption. Additionally, the A93DF includes advanced diagnostic capabilities that simplify troubleshooting and maintenance, making it a favorite among HVAC professionals.

The 95G1DF is another noteworthy model that combines versatile performance with exceptional efficiency. This furnace boasts an AFUE rating of up to 95%, making it one of the most efficient models in its class. Its innovative design includes a secondary heat exchanger that captures additional heat from exhaust gases, optimizing energy utilization. Furthermore, the 95G1DF is equipped with an advanced control system that allows homeowners to set specific comfort levels.

Lastly, the A95DF model takes efficiency to a new level. With features such as a modulating gas valve and a variable-speed blower, this unit seamlessly adapts to changing heating needs. The A95DF not only heats a space but also enhances air quality through advanced filtration options. Its whisper-quiet operation adds to user satisfaction, making it ideal for residential settings.

In summary, Allied Air Enterprises' models 92G1DF, A93DF, 95G1DF, and A95DF demonstrate a commitment to innovation and energy efficiency, with features designed to provide superior comfort and reliability. With their advanced technologies and high-performance characteristics, these models are positioned as top contenders in the heating and cooling marketplace, ensuring that customers can enjoy a comfortable environment year-round.