Vertical Direct Vent System Installation

These installations utilize the heater mounted blower to draw combustion air from outdoors and uses the natural buoyancy of the heated flue products to create a thermal driving head that expels the exhaust gases from the flue. The negative draft must be within the range of -0.01 to -0.08 in. WC as measured 12 in. from the appliance outlet to ensure proper operation. The vent material must be in accordance with the above instructions for vent materials. Vent material must be listed by a nationally recognized test agency.

The maximum and minimum venting length for Category I appliance shall be determined per the lat- est edition of the NFGC (U.S.) and B149 Installation Code (Canada).

The connection from the appliance exhaust vent to the stack must be as direct as possible and should be the same as or larger than the vent outlet. The vent must be installed to prevent accumulation of condensate and, where necessary, have means provided for drainage of condensate. The horizontal breaching of a vent must have an upward slope of not less than 1/4 inch per linear foot from the heater to the vent termi- nal. The horizontal portions of the vent shall also be supported for the design and weight of the material employed to maintain clearances and to prevent phys- ical damage or separation of joints.

Vertical Direct Vent Termination

The exhaust vent terminal should be vertical and should terminate outside the building at least two (2) feet above the highest point of the roof within 10 feet. The vent cap should have a minimum clearance of four (4) feet horizontally from and in no case above or below (unless a four (4) foot horizontal distance is maintained) electric meters, gas meters, regulators and relief equipment. The distance of the vent terminal from adjacent public walkways, adjacent buildings, open windows and building openings must be consis- tent with the NFGC, or in Canada, the B149. Installation Code. Gas vents supported only by flash- ing and extended above the roof more than five feet should be securely guyed or braced to withstand snow and wind loads.

The vertical direct vent cap is designed for roof top mounting only. The air inlet opening MUST be installed one (1) foot above the roof line or above normal snow levels that might obstruct combustion air flow. This dimension is critical to the correct operation of the heater and venting system and reduces the chance of

blockage from snow. The vent cap must have a mini- mum 3 foot clearance from the air inlet opening.

Outdoor Installation

Outdoor models are self-venting when installed with the factory-supplied restricted direct vent cap and require no additional vent piping. This special vent cap is provided with the heater in accordance with CSA requirements. It must be installed directly on the heater. See Section B for correct clearances.

Care must be taken when locating the outdoor unit because the flue gases discharged from the vent hood can condense as they leave the hood. Improper loca- tion can result in damage to adjacent structures or building finish. For maximum efficiency and safety, the following precautions must be observed:

a)Outdoor models must be installed outdoors and must use the outdoor vent hood supplied by the manufacturer.

b)Periodically check venting system. The heater’s venting areas must never be obstructed in any way and minimum clearances must be observed to prevent restriction of combustion and ventilation air. Keep area clear and free of combustible and flammable materials.

c)Do not locate adjacent to any window, door walk- way, or gravity air intake. The vent must be located a minimum of four (4) feet horizontally, or four (4) feet below, or one (1) foot above such areas.

d)Install above grade level and above normal snow levels.

e)Vent terminal must be at least 3 feet above any forced air inlet located within 10 feet.

f)Adjacent brick or masonry surfaces must be pro- tected with a rust-resistant sheet metal plate.

g)Multiple Outdoor Vent installations require a four

(4) feet clearance between vent caps.

NOTE: Condensate can freeze on the vent cap. Frozen condensate on the vent cap can result in a blocked flue condition.

The restricted vent cap must be furnished by the heater manufacturer in accordance with its listing.

An outdoor air filter, supplied by the manufacturer is mounted on the heater.

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Raypak 122-322 manual Outdoor Installation, Vertical Direct Vent System Installation, Vertical Direct Vent Termination
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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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