Lochinvar 3.5, 2.5 service manual Sidewall direct venting, Vent/air termination sidewall

Page 21
￿ WARNING

4 Sidewall direct venting

Vent/air termination – sidewall

￿WARNING Follow instructions below when determining vent location to avoid

possibility of severe personal injury, death, or substantial property damage.

￿WARNING A gas vent extending through an exterior wall shall not terminate adjacent to a wall

or below building extensions such as eaves, parapets, balconies, or decks. Failure to comply could result in severe personal injury, death, or substantial property damage.

Installation & Operation Manual

Sidewall vent and air inlet terminations must terminate in the same pressure zone.

f.Do not terminate above any door or above or below any window. Condensate can freeze, causing ice formations.

g.Locate or guard vent to prevent condensate damage to exterior finishes.

Figure 4-1Sidewall Termination of Air and Vent

NOTICE PVC/CPVC or ABS is acceptable air inlet pipe material.

￿WARNING

￿CAUTION

Do not connect any other appliance to the vent pipe or multiple boilers to a common vent pipe except as noted in Section 2 on page 18. Failure to comply could result in severe personal injury, death, or substantial property damage.

Sidewall venting commercial products will result in large exhaust plumes in cold climates. Consideration should be taken when locating in proximity to windows, doors, walkways, etc.

FROM BOILER VENT

PIPE CONNECTION

TO BOILER INTAKE

AIR CONNECTION

36" MIN

48" MAX

NOTICE

Installation must comply with local

requirements and with the National Fuel

 

 

Gas Code, NFPA 54 / ANSI Z223.1 for U.S.

 

installations or CSA B149.1 for Canadian

 

installations.

Determine location

Locate the vent/air terminations using the following guidelines:

1.The total length of piping for vent or air must not exceed the limits given in the General Venting Section on page 17 of this manual.

2.You must consider the surroundings when terminating the vent and air:

a.Position the vent termination where vapors will not damage nearby shrubs, plants or air conditioning equipment or be objectionable.

b.The flue products will form a noticeable plume as they condense in cold air. Avoid areas where the plume could obstruct window views.

c.Prevailing winds could cause freezing of condensate and water/ice buildup where flue products impinge on building surfaces or plants.

d.Avoid possibility of accidental contact of flue products with people or pets.

e.Do not locate the terminations where wind eddies could affect performance or cause recirculation, such as inside building corners, near adjacent buildings or surfaces, window wells, stairwells, alcoves, courtyards, or other recessed areas.

12" MIN

GRADE OR

SNOW LINE

3.Maintain clearances as shown in FIG.’s 4-1 thru 4-3, pages 21 and 22. The vent termination should not be located in traffic areas such as walkways, adjacent buildings, operable windows, or doors. Also maintain the following:

a.Vent must terminate:

•At least 6 feet (1.8 m) from adjacent walls.

•Not less than 7 feet (2.1 m) above grade where located adjacent to public walkways.

•No closer than 12 inches (305 mm) below roof overhang.

•At least 3 feet (.9 m) above any forced air intake within 10 feet (3 m).

•No closer than 4 feet (1.2 m) horizontally from any door or window or any other gravity air inlet.

b.Air inlet must terminate at least 12 inches (305 m) above grade or snow line; at least 36 inches (914 mm) below the vent termination.

c.Do not terminate closer than 4 feet (1.2 m) horizontally from any electric meter, gas meter, regulator, relief valve, or other equipment. Never terminate above or below any of these within 4 feet (1.2 m) horizontally.

4.Locate terminations so they are not likely to be damaged by foreign objects, such as stones or balls, or subject to

buildup of leaves or sediment.

21

 

Page 20 Page 22
Image 21
Page 20 Page 22
Contents Save this manual for future reference Contents Please read before proceeding When servicing boilerBlowers Crest How it worksCrest How it works Models 1.5 2.0 2.5 3.0 Crest Ahri Rating RatingsRecommended clearances for service access Installation must comply withDetermine boiler location Before locating the boiler, checkFlooring and foundation Provide air openings to roomVent and air piping Prevent combustion air contaminationWhen using an existing vent system to install a new boiler Products to avoidAreas likely to have contaminants When removing a boiler from existing common vent system Remove boiler from wood pallet 7Combustion Air from Outside Single Opening Minimum Recommended Combustion AIR Supply to Equipment Room General venting Direct ventingOptional room air Air inlet pipe materials Install vent and combustion air pipingAir intake/vent connections Approved Stainless Steel Vent Manufacturers Make ModelRemoving from existing vent Common venting Vent/air termination vertical Vertical direct ventingDetermine location Prepare roof penetrations4Alternate Vertical Terminations with Multiple Boilers Multiple vent/air terminationsVent/air termination sidewall Sidewall direct venting2Clearance to Doors and Windows Prepare wall penetrations4Multiple Vent Terminations must also comply with Figure Room airHydronic piping Circulator sizing Model20F 40F 60F Near boiler piping components Ball Valve Multiple Boilers Common Header Primary / Secondary Flow For all equipment and detailing required by local codes AIR Seperator Drain Port Typical System Supply Sensor Connecting gas supply piping Gas connectionsModel Gas Inlet Size Propane Gas Natural gasCheck inlet gas supply GAS Piping Size ChartGas Pressure Gas valve replacementField wiring Installation must comply withLine voltage connections Outdoor temperature sensor EnableLouver proving switch Low voltage connectionsAlarm contacts Auxiliary switch 1Wiring of the cascade System supply sensorField WiringCondensate drain Condensate disposalStart-up Freeze protection when usedCheck/control water chemistry Fill and test water systemCheck thermostat circuits Check for gas leaksInspect condensate system Inspect/check condensate lines and fittingsStart the boiler Final checks before starting the boilerIf boiler does not start correctly Check system and boilerFor Your Safety Read Before Operating Gas Natural Gas Propane Valve Set space heating operationVerify HWG circulator mode Set HWG target temperature Configuration of the cascadeSet clock General Operating informationProtection features Outdoor reset operation, if used Boiler temperature regulationCascade Sequence of operation Home Screen Crest control module2Main Menu Screen Service technician Maintenance Maintenance and annual startupOwner maintenance See the Crest User’s Information Manual for InstructionsMaintenance Check water system Flue vent system and air pipingCheck expansion tank Check boiler relief valveCheck all boiler wiring Check ignition ground wiringCheck control settings Check flame signalReview with owner Cleaning boiler heat exchangerHandling ceramic fiber materials Niosh stated First AidIntegrated Control Diagrams2Wiring Diagram
Related manuals
Manual 56 pages 20.39 Kb

3, 2, 3.5, 2.5 specifications

The Lochinvar 2, 3, 3.5, and 2.5 models are a standout lineup in the realm of commercial and residential water heating solutions. Known for their advanced technology and high efficiency, these units cater to a wide range of applications, ensuring optimal performance and reliability.

One of the key features of the Lochinvar models is their robust construction. Each unit is designed to withstand rigorous operational demands while providing excellent thermal efficiency. They are equipped with stainless steel heat exchangers, which offer superior resistance to corrosion and extend the lifespan of the equipment. This durability is essential for both commercial and residential settings where demand can vary significantly.

The Lochinvar 2, 3, 3.5, and 2.5 models utilize innovative control systems that enhance their operational efficiency and user convenience. The built-in Smart Control technology allows for easy monitoring and adjusting of system parameters, ensuring that users can maintain optimal performance with minimal effort. This feature is especially beneficial in commercial settings where large volumes of hot water are required, as it enables users to effectively manage their energy consumption.

Energy efficiency is another hallmark of the Lochinvar lineup. With high-efficiency ratings, these models help reduce energy costs significantly, making them an environmentally friendly option for heating water. The use of advanced combustion technology ensures that these units can deliver maximum heat output with minimal fuel consumption.

Additionally, the Lochinvar models are designed with safety and reliability in mind. They feature multiple safety controls and diagnostics that alert users to potential issues before they escalate, providing peace of mind. The integration of advanced venting options allows for flexible installation configurations, accommodating various building layouts and space requirements.

In summary, the Lochinvar 2, 3, 3.5, and 2.5 models define modern water heating technology with their combination of durability, efficiency, and advanced features. With their innovative design and user-friendly controls, they meet the demanding needs of both commercial and residential users, making them a top choice in the water heater market. Whether for new installations or replacements, these units deliver reliable performance and value.
Top Page Image Contents