APPENDIX

Inside Air Contamination

All heaters experience some condensation during start-up. The condensate from flue gas is acidic. Combustion air can be contaminated by certain vapors in the air which raise the acidity of the condensate. Higher acidity levels attack many materials including stainless steel, which is commonly used in high effi- ciency systems. The heater can be supplied with corrosion-resistant, non-metallic intake air vent materi- al. You may, however, choose to use outside combustion air for one or more of these reasons:

1.Installation is in an area containing contaminants listed below which will induce acidic condensation.

2.You want to reduce infiltration into your building through openings around windows and doors.

3.You are using AL29-4C stainless steel vent pipe, which is more corrosion-resistant than standard metallic vent pipe. In extremely contaminated ar- eas, this may also experience deterioration.

Products causing contaminated combustion air:

•spray cans containing chloro/fluorocarbons

•permanent wave solutions

•chlorinated waxes/cleaners

•chlorine-based swimming pool chemicals

•calcium chloride used for thawing

•sodium chloride used for water softening

•refrigerant leaks

•paint or varnish removers

•hydrochloric acid/muriatic acid

•cements and glues

•antistatic fabric softeners used in clothes dryers

•chloride-type bleaches, detergents, and cleaning solvents found in household laundry rooms

•adhesives used to fasten building products

•similar products

Areas where contaminated combustion air commonly exists:

•dry cleaning/laundry areas

•metal fabrication plants

•beauty shops

•refrigeration repair shops

•photo processing plants

•auto body shops

•plastic manufacturing plants

•furniture refinishing areas and establishments

•new building construction

•remodeling areas

•open pit skimmers

Check for areas and products listed above before in- stalling heater. If found:

•remove products permanently, OR

•install TruSeal direct vent

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Raypak 992B manual Appendix, Inside Air Contamination
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992B specifications

The Raypak 992B is a highly regarded commercial boiler known for its efficiency and reliability in heating applications. Designed for a range of installations, it is particularly favored in schools, hotels, and various commercial settings where dependable heating is crucial. One of the standout features of the Raypak 992B is its impressive thermal efficiency rating, often exceeding 90%. This efficiency translates into lower energy costs and reduced environmental impact, making it a smart choice for eco-conscious businesses.

The Raypak 992B comes equipped with advanced technologies that enhance performance and ease of use. Among these technologies is the high-precision digital control system, which allows for accurate temperature regulation and monitoring. This feature ensures optimal performance and minimizes energy waste, further contributing to the unit's cost-effectiveness. The boiler also utilizes a modulating burner system, enabling it to adjust flame size based on real-time heating demands. This adaptability not only enhances efficiency but also improves overall comfort within a facility.

Another significant characteristic of the Raypak 992B is its robust construction. Built with durable materials designed to withstand demanding operating conditions, this boiler is engineered for long-lasting performance. Its compact design is an added benefit, facilitating installation in areas with limited space. The unit is also equipped with a stainless steel heat exchanger, which provides superior resistance to corrosion and enhances heat transfer efficiency.

Safety features are also paramount in the design of the Raypak 992B. The boiler includes multiple safety controls and alarms to prevent overheating and maintain safe operating conditions. This diligence in safety ensures peace of mind for operators and reduces the risk of unexpected downtime.

In summary, the Raypak 992B stands out as a top choice for commercial heating solutions, combining high efficiency, advanced technology, and rugged construction. Its features cater to a wide range of heating needs while prioritizing safety and economy. With its impressive performance capabilities, the Raypak 992B continues to be a reliable partner for facilities seeking optimal heating solutions.
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