ances shall not terminate over public walkways or over an area where condensate or vapor could create a nuisance or hazard or could be detrimen- tal to the operation of regulators, relief valves, or other equipment. Where local experience indi- cates that condensate is a problem with Category I and III appliances, this provision shall also apply.

8.Locate and guard vent termination to prevent acci- dental contact by people or pets.

9.DO NOT terminate vent in window well, stairwell, alcove, courtyard or other recessed area.

10.DO NOT terminate above any door, window, or gravity air intake. Condensate can freeze, causing ice formations.

11.Locate or guard vent to prevent condensate from damaging exterior finishes. Use a rust resistant sheet metal backing plate against brick or mason- ry surfaces.

12.DO NOT extend exposed vent pipe outside of building. Condensate could freeze and block vent pipe.

US Installations

Refer to latest edition of the National Fuel Gas Code.

Vent termination requirements are as follows:

a)Vent must terminate at least four (4) feet below, four (4) feet horizontally, or one (1) foot above any door, window or gravity air inlet to the building.

b)The vent must not be less than seven (7) feet above grade when located adjacent to public walk- ways.

c)Terminate vent at least three (3) feet above any forced air inlet located within ten (10) feet.

d)Vent must terminate at least four (4) feet horizon- tally, and in no case above or below unless four (4) feet horizontal distance is maintained, from elec- tric meters, gas meters, regulators, and relief equipment.

e)Terminate vent at least six (6) feet away from adja- cent walls.

f)DO NOT terminate vent closer than five (5) feet below roof overhang.

g)The vent terminal of a direct vent appliance with an input over 50,000 BTUH per hour shall require a 12-inch vent terminal clearance.

h)Terminate vent at least one (1) foot above grade, including normal snow line.

i)Multiple direct vent installations require a four (4) foot clearance between vent caps.

Installations in Canada

Refer to latest edition of CAN/CGA-B149.

A vent shall not terminate:

a)Directly above a paved sidewalk or driveway which is located between two single family dwellings and serves both dwellings.

b)Less than 7 ft. (2.1m) above a paved sidewalk or paved driveway located on public property.

c)Within 6 ft. (1.8m) of a mechanical air supply inlet to any building.

d)Above a meter/regulator assembly within 3 ft. (914mm) horizontally of the vertical center-line of the regulator.

e)Within 6 ft. (1.8m) of any gas service regulator vent outlet.

f)Less than 1 ft. (305mm) above grade level.

g)Within the 3 ft. (914mm) of a window or door which can be opened in any building, any non-mechani- cal air supply inlet to any building or the combustion air inlet of any other appliance.

h)Underneath a verandah, porch or deck, unless

(i)the verandah, porch or deck is fully open on a minimum of two sides beneath the floor, and

(ii)the distance between the top of the vent termi- nation and the underside of the verandah, porch or deck is greater than 1 ft. (30 cm).

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Raypak HD401, HD101 manual US Installations, Installations in Canada
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HD101, HD401 specifications

Raypak is renowned for its commitment to high-quality heating solutions, with the HD101 and HD401 models standing out in their product range. These units are designed specifically for commercial applications, providing reliable and efficient hydronic heating systems. The HD series embodies innovation while addressing the unique demands of larger spaces.

One of the main features of the HD101 and HD401 is their stainless steel construction, which ensures increased durability and resistance to corrosion. This design choice enhances the longevity of the units, making them ideal for various installations in commercial or industrial settings.

Both models are equipped with a high-efficiency heat exchanger that maximizes heat transfer while minimizing energy consumption. This feature is particularly significant in today’s environmentally conscious market, as it contributes to lower operating costs and reduced carbon footprints. The heat exchangers are engineered for easy maintenance, offering simplicity when service is required.

In terms of technology, the HD101 and HD401 include advanced digital controls that allow for precise temperature regulation. This user-friendly interface enables operators to easily manage and monitor heating parameters, facilitating optimal performance and energy management.

The models also feature modulating burners that adjust their output according to the heating demand. This capacity for modulation results in smoother operation and an overall increase in efficiency, as the burners can maintain consistent temperatures without excessive energy use.

Another noteworthy characteristic is their compatibility with various control systems, including BMS (Building Management Systems). This adaptability allows for seamless integration into existing infrastructure, providing users with greater versatility and control over their heating environments.

Both the HD101 and HD401 come with advanced safety features, including flame rollback protection and pressure monitoring, ensuring safe operation even in demanding conditions. Additionally, their compact design allows for easy installation in limited spaces while still providing powerful heating capabilities.

Ultimately, the Raypak HD101 and HD401 are exceptional choices for those in need of high-efficiency commercial heating solutions. With their robust construction, advanced technology, and user-friendly features, these models promise to deliver reliable performance and energy savings for years to come. Whether for a large facility or a specific industrial application, they stand ready to meet the heating challenges of today’s commercial landscape.
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