SBN71-120 thru 85-390, SBD30-150/199 TANK TYPE COMMERCIAL

GAS WATER HEATER SERVICE HANDBOOK

REQUIRED EXTERIOR CLEARANCES

Stoichiometric or theoretical complete combustion requires 10 cubic feet of air per 1,000 BTUH of gas supplied. The National Fuel Gas code also recommends an additional 2.5 cubic feet of “excess” air. For information on minimum make-up air opening sizes for various building installations, refer to the National Fuel Gas Code NFPA 54, ANSI Z223.1, Sec. 5.3

INSUFFICIENT MAKEUP AIR

NEGATIVE AIR PRESSURE

DOWNDRAFTS

 

 

One common example is in a

 

 

 

 

restaurant

installation

where

 

 

exhaust vent equipment was not

 

 

considered in sizing make-up

 

 

requirements. This condition may

 

 

result in air being back drafted by

 

 

the restaurant exhaust

equipment

 

 

through the heater causing the draft

 

 

proving switch to open and/or

 

 

erratic heater shutdown.

 

 

 

 

 

 

State Water Heaters

7

Technical Training Department

Ashland City, Tennessee © 2007

 

 

Page 8
Image 8
State Industries SBD30 199, SBD30 150, SBN85 390 (A), SBN71 120, SERIES 108 Insufficient Makeup AIR Negative AIR Pressure

SBN71 120, SERIES 108, SBD30 150, SBD30 199, SBN85 390 (A) specifications

State Industries offers a range of innovative products designed to meet the diverse heating and cooling needs of both residential and commercial applications. Among their notable models are the SBN85 390, SBD30 199, SBD30 150, SERIES 108, and SBN71 120. Each model showcases distinct features and technologies that cater to varying climates and user requirements.

The SBN85 390 is known for its robust construction and efficient performance. It features enhanced thermal efficiency, making it ideal for environments demanding reliable heating solutions. This model is equipped with an advanced control system that enables precise temperature regulation, ensuring optimal comfort while minimizing energy consumption. Its compact design also allows for easy installation in tight spaces.

Meanwhile, the SBD30 199 and SBD30 150 are both built for versatility and user-friendly operation. These models utilize a high-efficiency heat exchanger that not only improves heat transfer but also promotes fuel savings. Furthermore, they are designed with low emissions technology, making them environmentally friendly options for conscientious consumers. With intuitive control panels, users can effortlessly adjust settings for maximum convenience.

The SERIES 108 offers advanced features aimed at enhancing user experience. With its high-performance blower system, it ensures consistent airflow and temperature distribution throughout the space. This model also includes smart technology that allows for remote monitoring and control via mobile devices, providing flexibility and convenience. Its durable construction ensures long-lasting performance even in harsh conditions.

Finally, the SBN71 120 stands out for its compact size combined with powerhouse performance. This model is particularly suitable for smaller applications where space is at a premium. Despite its size, it does not compromise on efficiency or power, making it a favored choice for users seeking effective heating solutions without occupying excessive floor space.

In summary, State Industries provides a comprehensive collection of heating and cooling products, each crafted with unique features tailored to meet specific user needs. From high efficiency and environmentally friendly technology to smart control systems, these models embody a commitment to quality and performance, ensuring they can withstand varied demands in both residential and commercial settings. With a focus on innovation, State Industries continues to deliver reliable solutions that prioritize comfort, efficiency, and sustainability.