Installation & Operation Manual

2 Venting

Vent system options: (Note: Installations shown below are representative, actual installations may vary from those shown.)

A

This option uses a vertical rooftop flue termination

D

This option uses a powered vent assembly to

with air supplied from the equipment room - see

exhaust the flue products out a sidewall with air

page 16.

supplied by a pipe from the sidewall - see page 25.

CONVENTIONAL NEGATIVE

HORIZONTAL DIRECTAIRE

VENTING

 

DRAFT VENTING

 

 

 

 

 

 

NOTE: CAT I B-VENT MATERIALS MAY BE USED WHEN THE

 

 

 

POWERED VENT IS CONNECTED DIRECTLY TO THE OUTSIDE

 

 

 

VENT CAP. IF THE POWERED VENT IS NOT CONNECTED

 

 

 

DIRECTLY TO THE OUTSIDE VENT CAP, THEN CAT IV - AL29-4C

 

 

 

VENT MATERIALS MUST BE USED FROM THE POWERED VENT

 

 

 

TO THE OUTSIDE VENT CAP.

3'

MIN

12"

MIN

B

This option uses a vertical conventional vent for

E

This option uses a sealed AL29-4C flue and a

flue products with air supplied by a pipe from the

separate combustion air pipe to the outdoors.

sidewall or rooftop - see page 19.

This system terminates both the flue and

 

 

 

combustion air inlet in the same pressure zone

VERTICAL DIRECTAIRE VENTING

DIRECT VENT - see page 26.

 

 

 

 

3'

 

 

 

 

 

MIN

 

 

 

 

 

12"

 

 

 

 

 

MIN

 

C

This

option uses a powered vent

assembly

F

This option uses the installation of a special air

to exhaust the flue products out a sidewall

inlet / vent cap on top of the unit - see page 30.

vent

termination with air supplied

from the

 

 

equipment room - see page 22.

 

 

 

SIDEWALL VENTING

 

 

OUTDOOR VENTING

 

 

 

 

NOTE: CAT I B-VENT MATERIALS MAY BE USED WHEN THE

POWERED VENT IS CONNECTED DIRECTLY TO THE OUTSIDE

VENT CAP. IF THE POWERED VENT IS NOT CONNECTED

DIRECTLY TO THE OUTSIDE VENT CAP, THEN CAT IV - AL29-4C

VENT MATERIALS MUST BE USED FROM THE POWERED VENT

TO THE OUTSIDE VENT CAP.

14

Page 14
Image 14
Lochinvar 402 - 2072 operation manual Direct Vent see

402 - 2072 specifications

The Lochinvar 402 - 2072 is a versatile and highly efficient boiler designed to meet the heating demands of modern residential and commercial applications. This model stands out due to its innovative technologies, advanced features, and a high level of reliability, making it an ideal choice for consumers looking for an enduring and economical heating solution.

One of the primary characteristics of the Lochinvar 402 - 2072 is its impressive energy efficiency. With an exceptional annual fuel utilization efficiency (AFUE) rating, this boiler ensures minimal energy waste, allowing homeowners and business operators to save significantly on their energy bills. The model incorporates advanced condensing technology that enables it to extract heat from the combustion gases, maximizing heat transfer and reducing emissions.

The Lochinvar 402 - 2072 is built with a robust stainless steel construction that enhances durability and resilience against corrosion and other environmental factors. This material not only prolongs the lifespan of the unit but also contributes to its outstanding thermal efficiency. Additionally, the boiler's compact design allows for flexible installation options, making it suitable for various spaces, including tight utility rooms and basements.

Equipped with a user-friendly control interface, the Lochinvar 402 - 2072 allows for easy monitoring and adjustment of settings. Its advanced digital display provides real-time data on system performance, ensuring the operator can maintain optimal performance and efficiency.

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