Installation & Operation Manual

2 Venting

￿WARNING

Do not combine the flue from this unit with the vent from any other appliance. Do not combine flues from multiple appliances into a common vent. The flue from this unit must be a dedicated stack.

Connect the flue vent directly to the flue outlet opening on the top of the unit. Make the connections from the unit vent to the outside stack as direct as possible with no reduction in diameter. Provide adequate clearance to combustibles for the vent connector and firestop. Follow the vent manufacturer’s instructions when installing sealed AL29-4C vents and accessories, such as firestop spacers, vent connectors, thimbles, caps, etc.

Provide adequate clearance to combustibles for the vent connector and firestop.

When planning the venting system, avoid possible contact with plumbing or electrical wiring inside walls, ceilings, and floors.

Locate the unit as close as possible to chimney or gas vent. When a vent system is disconnected for any reason, the flue must be reassembled and resealed according to the vent manufacturer’s instructions.

The installed length of flue from the unit to the outside point of termination must not exceed 50 equivalent feet (15.2m). Subtract 5 feet (1.5m) of equivalent length for each 90° elbow. Subtract 2.5 feet (0.7m) of equivalent length for each 45° elbow.

Sidewall vent termination clearances and location

Follow all sidewall venting termination information for clearances and location under Sidewall Vent Termination Clearances and Location on page 22.

TABLE - 2C

SIDEWALL VENT KITS

 

KIT

MAX. VENT

VENT TERMINATION

MAX. VENT

MODEL

ONLY

(W/POWER FAN ASSY.)

LENGTH

LENGTH

 

(MODELS 402 - 752)

 

 

 

 

402

SVK3006

100 ft.

SVK3043

50 ft.

 

 

 

 

 

502

SVK3006

100 ft.

SVK3043

50 ft.

652

SVK3008

100 ft.

SVK3044

50 ft.

 

 

 

 

 

752

SVK3008

100 ft.

SVK3044

50 ft.

992

SVK3009*

100 ft.

N/A

N/A

1262

SVK3010*

100 ft.

N/A

N/A

 

 

 

 

 

1442

SVK3010*

100 ft.

N/A

N/A

1802

SVK3012*

100 ft.

N/A

N/A

 

 

 

 

 

2072

SVK3012*

100 ft.

N/A

N/A

 

 

 

 

 

*These kits include a barometric damper.

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Lochinvar 402 - 2072 operation manual Models 402

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.

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