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 503-2003 manual Appendix, Inside Air Contamination

503-2003 specifications

The Raypak 503-2003 is a notable entry in the world of water heating solutions, renowned for its efficiency and reliability in both residential and commercial settings. This model is designed to provide exceptional performance while maintaining ease of use and minimization of environmental impact.

One of the standout features of the Raypak 503-2003 is its advanced heating technology. The unit utilizes a durable, copper heat exchanger which ensures quick and efficient heating of water. This heat exchanger is known for its ability to transfer heat effectively, leading to reduced energy consumption and lower utility bills. The design also allows for a seamless operation, ensuring that the system heats water swiftly without sacrificing performance.

In addition to its efficient heating capabilities, the Raypak 503-2003 is equipped with innovative controls. The digital control panel allows users to easily set and adjust the desired water temperature. This feature provides a level of convenience that simplifies operation while enhancing user experience. Furthermore, the smart technology employed in the unit ensures that it operates within optimal parameters, avoiding unnecessary energy expenditure.

Durability is another hallmark of the Raypak 503-2003. Built with heavy-duty components, this water heating solution is designed to withstand the rigors of continuous use. The rugged construction ensures longevity, making it a cost-effective investment for homeowners and businesses alike. Moreover, the unit is designed to be resistant to corrosion and wear, further extending its lifespan and reliability.

The energy efficiency of the Raypak 503-2003 is a crucial characteristic that sets it apart from competitors. Rated with a high efficiency score, this model contributes to lower emissions and is environmentally friendly. It adheres to various energy standards, making it a suitable choice for those looking to reduce their carbon footprint while enjoying reliable water heating.

Noise reduction is another important feature of the Raypak 503-2003. Designed with quiet operation in mind, the unit operates with minimal noise pollution, allowing for a pleasant environment in both residential and commercial spaces.

In summary, the Raypak 503-2003 combines advanced heating technology, user-friendly controls, durability, and energy efficiency into a robust water heating system. This makes it an excellent choice for those in need of dependable and sustainable heating solutions. Whether for daily home use or for larger commercial applications, the Raypak 503-2003 stands out as a leader in its class.