SECTION C: Installation

Venting not shown for clarity. Heater must be vented

per instructions in this manual

Fig. 6: Minimum Clearances from Combustible Surfaces – Indoor and Outdoor Installations

When installed according to the listed minimum clear- ances from combustible construction, these heaters can still be serviced without removing permanent structural construction around the heater. However, for ease of servicing, we recommend a clearance of at least 24 in. in front, at least 24 in. on the rear and 10 in. above the top of the heater. This will allow the heater to be ser- viced in its installed location without movement or removal of the heater.

Service clearances less than the minimum may require removal of the heater to service either the heat ex- changer or the burner components. In either case, the heater must be installed in a manner that will enable

the heater to be serviced without removing any struc- ture around the heater.

Outdoor Installations

These heaters are design-certified for outdoor installa- tion. Heaters must not be installed under an overhang that is less than 3 ft from the top of the vent terminal. Three sides must be open in the area under the over- hang. Roof water drainage must be diverted away from heaters installed under overhangs.

Heater

Min. Clearance

Recommended

from Combustible

Service

Side

Surfaces

Clearance

 

Rear

12”

24”

 

 

 

Right Side

1”

1”

 

 

 

Left Side

1”

1”

Top

Unobstructed

Unobstructed

 

 

 

Vent

12”

12”

Termination

 

 

Table E: Clearances – Outdoor Installations

The combustion air intake terminal MUST be used for outdoor installations. The hood is shipped loose and installed on the rear of the heater at the jobsite.

Combustion and Ventilation Air

NOTICE: Use of the heater in construction areas where fine particulate matter, such as concrete or dry- wall dust, is present may result in damage to the burner that is not covered by the warranty. If operated in a construction environment, a clean source of combus- tion air must be provided directly to the heater.

Indoor Units

The heater must be supplied with sufficient quantities of non-contaminated air to support proper combustion and equipment ventilation. Combustion air can be sup- plied via conventional means where combustion air is drawn from the area immediately surrounding the heater, or via direct vent, where combustion air is drawn directly from outside. All installations must comply with the requirements of the NFGC (U.S.) and B149.1 (Canada), and all local codes.

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Raypak 503-2003 manual Combustion and Ventilation Air, Outdoor Installations, Indoor Units
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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.
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