Combustion Air

Exhaust

Venting Category

Certified

Combustion Air

 

Supply

Configuration

Appliance Material

Inlet Material

 

 

 

 

 

 

 

 

Vertical Natural

 

Type B or and

 

 

 

I

Category I Venting

 

 

 

Draft Venting

 

 

From Inside

 

System*

 

 

 

 

 

 

Building (Non-Direct

 

 

 

 

 

Horizontal

 

 

 

 

Venting)

 

Stainless Steel

 

 

 

Thru-wall

III

 

 

 

(Gas Tight)

 

 

 

Venting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type B or and

 

 

 

Vertical Venting

I

Category I Venting

Galvanized Steel

 

From Outside

 

 

System*

 

 

 

PVC

 

Building (Direct

 

 

 

 

 

 

 

 

Horizontal

 

 

ABS

 

Venting)

 

Stainless Steel

 

 

CPVC

 

Thru-wall

III

 

 

 

 

(Gas Tight)

 

 

 

 

 

Venting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*As defined in the latest edition of the NFGC, or in Canada, the B149.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table H: Venting Category Requirements

 

 

 

 

 

 

 

 

Barometric Damper

A barometric damper may be required when vent heights exceed 25 feet or when the draft is greater than -0.08 in. WC. In these installations, a barometric damper (single acting) is recommended.

The damper should be installed NO CLOSER than 18 in. from the discharge of the unit and no closer than 18 in. from a combustible ceiling. The damper can be installed in horizontal or vertical runs of vent pipe as necessary. Installation in a bull-head tee is acceptable as shown in the NFGC.

The weights on the damper should be adjusted per the damper manufacturer’s instructions for proper opera- tion.

Support of Vent Stack

The weight of the vent stack or chimney must not rest on the heater vent connection. Support must be pro- vided in compliance with applicable codes. The vent should also be supported to maintain proper clear- ances from combustible materials.

Use insulated vent pipe spacers where the vent pass- es through combustible roofs and walls.

Vent Terminal Location

NOTE: During winter months check the vent cap and make sure no blockage occurs from build up of snow. Condensate can freeze on the vent cap. Frozen condensate on the vent cap can result in a blocked flue condition.

General

Give special attention to the location of the vent termi- nation to avoid possibility of property damage or personal injury.

a)Gases may form a white vapor plume in winter. The plume could obstruct a window view if the ter- mination is installed in close proximity to windows.

b)Prevailing winds could cause freezing of conden- sate and water/ice build-up on building, plants or roof.

c)The bottom of the vent terminal and the air intake shall be located at least 12 in. above grade.

d)Un-insulated single-wall metal vent pipe shall not be used outdoors on cold climates for venting gas utilization equipment.

e)Through-the-wall vents for Category II and IV appliances and non-categorized condensing appli- ances shall not terminate over public walkways or

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Raypak 122-322 manual Barometric Damper, Support of Vent Stack, Vent Terminal Location
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122-322 specifications

Raypak 122-322 is a cutting-edge pool and spa heater designed for optimal performance and efficiency. Known for its robust construction and reliable heating capabilities, this heater has become a preferred choice among pool owners.

One of the standout features of the Raypak 122-322 is its advanced copper fin tube heat exchanger. This innovative technology enhances the heater's efficiency by maximizing heat transfer while minimizing energy consumption. By efficiently circulating the water through the heat exchanger, the Raypak 122-322 quickly raises the temperature, allowing for an enjoyable swimming experience regardless of the weather.

The heater is equipped with a digital control system that allows for precise temperature adjustments. This user-friendly interface makes it easy to set and maintain the desired water temperature, promoting user convenience. The digital controls also provide diagnostic features, which simplify troubleshooting and maintenance, ensuring the heater operates smoothly for years to come.

Safety is a crucial aspect of the Raypak 122-322. It comes with a series of safety features, including a flame rollout switch, high limit switch, and a pressure switch that ensures the unit operates safely under various conditions. This focus on safety provides peace of mind for users, knowing that their heating system is designed with protective measures in place.

The Raypak 122-322 is environmentally friendly, designed to use less energy compared to conventional heating systems. Its efficient performance not only reduces operational costs but also lessens the overall environmental impact, making it a responsible choice for conscious consumers.

With a compact design, the Raypak 122-322 can fit easily into various installation spaces, making it versatile for numerous residential or commercial settings. Additionally, the unit is built with durable materials resistant to corrosion and weather conditions, ensuring longevity and minimal maintenance requirements.

Overall, the Raypak 122-322 stands out in the market due to its advanced features, safety mechanisms, energy efficiency, and ease of use. It exemplifies a perfect blend of innovation and reliability, making it an exceptional option for anyone looking to enhance their pool or spa experience.
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