SECTION C: Installation

Fig. 24: Horizontal Through-the-Wall Direct Venting

CAUTION: This venting system requires the installa- tion of a condensate drain in the vent piping per the vent manufacturer’s instructions. Failure to install a condensate drain in the venting system will void all warranties on this heater.

Installation

These installations utilize the heater-mounted blower to vent the combustion products to the outdoors. Com- bustion air is taken from inside the room and the vent is

installed horizontally through the wall to the outdoors. Adequate combustion and ventilation air must be sup- plied to the equipment room in accordance with the NFGC (U.S.) or B149.1 (Canada).

The total length of the horizontal through-the-wall flue system should not exceed 75 equivalent ft in length. If horizontal run exceeds 75 equivalent ft, an appropri- ately sized variable-speed extractor must be used. Each elbow used is equal to 10 ft of straight pipe. This will allow installation in one of the four following arrange- ments:

•75’ of straight flue pipe

•65’ of straight flue pipe and one elbow

•55’ of straight flue pipe and two elbows

•45’ of straight pipe and three elbows

The vent cap is not considered in the overall length of the venting system.

The vent must be installed to prevent flue gas leakage. Care must be taken during assembly to ensure that all joints are sealed properly and are airtight. The vent must be installed to prevent the potential accumulation of condensate in the vent pipes. It is required that:

1.The vent must be installed with a condensate drain located in proximity to the heater as directed by the vent manufacturer.

2.The vent must be installed with a slight upward slope of not less than 1/4 inch per foot of horizon- tal run to the vent terminal.

 

Certified Vent

Vent Size

Horizontal

Combustion Air

 

Air Inlet

Model

Vent Length (Ft)*

Intake Pipe

Max. Length (Ft) **

 

Material

(in.)

 

 

Material

 

 

 

 

Min.

Max.

6ӯ

8” Ø

10” Ø

 

 

 

503

 

 

 

 

 

 

 

 

 

 

6

 

 

 

45

100

N/A

753

 

 

 

 

 

 

 

 

 

Galvanized Steel,

 

 

 

1003

 

 

 

 

 

 

 

 

Category IV

 

 

 

PVC,

 

 

 

1253

 

0

75

 

 

 

(AL29-4C)

 

ABS,

 

 

 

1503

 

 

 

 

 

 

 

 

 

 

CPVC

N/A

45

85

1753

 

8

 

 

 

 

 

 

 

 

 

 

2003

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Vent lengths are based on a lateral length of 2 ft. Refer to the latest edition of the NFGC for further details.

**Subtract 10 ft per elbow. Max. 4 elbows.

Table M: Category IV Horizontal Vent & Horizontal Direct Vent

26

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Raypak 503-2003 manual Horizontal Through-the-Wall Direct Venting
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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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