Lochinvar 151 Alternate vertical concentric venting, Concentric Venting Arrangement

Page 35

Installation & Operation Manual

5 Vertical direct venting (continued)

Alternate vertical concentric venting

This appliance may be installed with a concentric vent arrangement where the vent pipe is routed through an existing unused venting system; or by using the existing unused venting system as a chase for vent and combustion air routing.

Figure 5-8Concentric Vent Example 1

FLUE EXHAUST

SEAL

Concentric Venting Arrangement

The venting is to be vertical through the roof. The annular space between the O.D. of the vent pipe and the I.D. of the existing unused venting system is utilized for the combustion air source.

The minimum size of the existing vent system required to achieve enough annular space for combustion air can be found in Table 5A below.

The upper and lower termination as well as any other unsealed joints in the existing vent system must be sealed to ensure that all combustion air is drawn from under the vent cap as shown in FIG.’s 5-8 and 5-9.

AIR INLET W/ SCREEN

12"

MIN.

COMBUSTION AIR

EXISTING

SEAL

SEALED

CAP

Approved venting materials must be used as specified in Table 3A on page 19.

FLUE OUTLET

Follow all vent / air termination and clearance requirements per this section to the appropriate example. Installation must comply with local requirements and with the National Fuel Gas Code.

*For concept illustration only. Individual installations

may vary due to job site specific equipment.

Figure 5-9Concentric Vent Example 2

The maximum allowable equivalent vent and air intake lengths for this venting arrangement are to be determined from the General Venting Section.

If an existing unused venting system is converted for use with this method of concentric venting, the installer must ensure that the existing venting system is clean and free from particulate contamination that will harm this appliance and cause increased nuisance calls or maintenance. See Table 1A on page 11 for a list of corrosive contaminants and sources.

Two example scenarios of a concentric venting arrangement are shown for illustrative purposes in FIG.’s 5-8 and 5-9.

Table 5A Alternate Vertical Concentric Vent / Chase Sizes

Model

Vent / Air

Minimum Existing

Inlet Size

Vent / Chase Size

 

 

 

 

151 - 200

3"

5"

286 - 601

4"

7"

SEAL

AIR INLET W/ SCREEN

SEAL

FLUE EXHAUST

COMBUSTION AIR

SEAL

 

 

EXISTING

 

 

 

 

 

SEALED

 

 

 

 

CAP

 

 

 

 

 

701 - 801

6"

10"

FLUE OUTLET

35

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Contents What to do if YOU Smell GAS Installation&OperationManual Models 151Contents Please read before proceeding When servicing the water heaterStainless steel heat exchanger Armor Water Heater How it worksModels 151 Models 601 Models 400CSA RatingsBefore locating the water heater, check Installation must comply withCloset and alcove installations Determine water heater location1Closet Installation Minimum Required Clearances Flooring and foundation Residential garage installationProvide air openings to room Vent and air pipingAreas likely to have contaminants Products to avoidDetermine water heater location Models 151 Prepare water heaterGas conversions Remove water heater from wood palletModel 3Installing Propane Orifice ModelLeveling the water heater Models 601Direct venting options Sidewall Vent General ventingDirect venting options Vertical Vent, Sidewall Air Direct venting options Vertical VentPVC/CPVC Vent piping materials Install vent and combustion air pipingRequirements for installation in Canada Installing vent or air pipingVent Pipe, and Fittings PVC/CPVC Air intake/vent connectionsStainless steel vent Air inlet pipe materialsModel Kit Number Stainlesssteelairintake/ventconnectionsFlue Flue Intake Air Adapter TerminationVent and air system Removing from existing ventModel Air Intake Vent Air contamination Optional room airVent, air piping and termination Model Kit Number DescriptionDetermine location If using the alternate sidewall terminationSidewall direct venting Vent/air termination sidewall3AClearance to Gravity Air Inlets Seal all wall cavities Prepare wall penetrationsTermination and fittings Prepare wall penetrations Alternate Field Supplied OptionMultiple vent/air terminations Description and usage Sidewall termination installationSidewall termination optional concentric vent Models 151 11 Concentric Multiventing sidewall terminations 13Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct ventingMultiple vent/air terminations Prepare roof penetrationsVertical termination optional concentric vent Models 151 Vertical termination installationMinimum Combustion AIR Typical Multiventing vertical terminationsConcentric Venting Arrangement Alternate vertical concentric venting10Existing Vent as a Chase Existing vent as a chaseSystem water piping methods Flow switch and relief valve installationFlow switch adjustment System pipingWater chemistry ScaldingPiping components 4Single Heater Single Tank 2 Temperature Cold Water Supply Cold Water Supply Number of Units Model 8Double Heater Double Tank Gas connections Connecting gas supply pipingPropane gas Natural gasLength of Pipe in Straight Feet for 1/2 PSI Single Unit Natural Gas Pipe Capacity ChartCheck inlet gas supply Gas pressure Gas valve replacementLow voltage connections Field wiringInstallation must comply with Line voltage connectionsFlow switch Tank thermostat Low gas pressure switchLouver proving switch High gas pressure switchRuntime contacts Alarm contactsWiring of the cascade 3Low Voltage Field Wiring Connections Condensate drain Condensate disposalInspect/check condensate lines and fittings Start-upCheck for gas leaks Inspect/fill condensate system Chlorine concentration less than 200 ppmCheck system and water heater Final checks before starting the water heaterStart the water heater If water heater does not start correctlyFor Your Safety Read Before Operating 3Operating Instructions Models 400 Natural Gas Propane Set tank set point temperatureVerify WHR circulator mode Set water heater operationSet clock Configuration of the cascadeGeneral Operating informationWater heater temperature regulation User InstallerCascade Sequence of the cascadeOperation Display Sequence of operation1Control Panel Armor water heater control moduleWater heater Information Dial Function Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Check water system Check ignition ground wiringCheck all water heater wiring Check control settingsCheck burner flame Check flame signalCleaning heat exchanger Perform start-up and checksModel Kit Part Component Number Description Check Delta TOiled bearing circulators PC Interface Diagrams2Wiring Diagram Page Page AWII-I-O Rev C
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151 specifications

Lochinvar 151,286 is a notable model in the realm of commercial water heating solutions, designed primarily for large-scale applications. This model incorporates advanced technologies and features that set it apart in terms of efficiency, usability, and reliability.

One of the hallmark features of Lochinvar 151,286 is its high-efficiency system that leverages condensing technology. This technology enables the unit to extract additional heat from exhaust gases, allowing it to operate at an impressive annual fuel utilization efficiency (AFUE) rating. This not only reduces energy consumption, but it also significantly lowers operational costs.

The Lochinvar 151,286 is equipped with a robust stainless steel heat exchanger, which provides both durability and enhanced thermal efficiency. This design withstands the rigors of high-demand environments, making it ideal for restaurants, schools, hospitals, or any facility requiring consistent hot water supply. Its compact footprint allows it to be installed in tight spaces without sacrificing performance.

Another standout characteristic is its intelligent control system. The built-in touchscreen interface offers users an intuitive way to manage settings, monitor performance, and troubleshoot issues. This smart technology aids in simplifying maintenance and improves overall system reliability. The unit also features advanced safety protocols, including multiple sensors that monitor operation and provide alerts in case of irregular performance.

In terms of capacity, the Lochinvar 151,286 can deliver an impressive output, accommodating varying demands with ease. Its innovative modulation capabilities allow the unit to adjust its heating output based on real-time hot water needs, ensuring unmatched comfort and efficiency.

Supporting the model’s performance are versatile connectivity options. Lochinvar 151,286 can integrate seamlessly with building management systems, allowing facility managers to monitor and control heating processes remotely. This level of connectivity not only enhances control but also supports energy-saving strategies across the facility.

In conclusion, Lochinvar 151,286 stands out as a premium choice for commercial water heating needs. With its high-efficiency ratings, durable construction, intelligent control system, impressive capacity, and versatile connectivity, it ensures that hot water is delivered reliably and efficiently, meeting the demands of modern businesses while reducing energy costs. This combination of technology and design makes it an essential component for any large-scale facility focused on performance and sustainability.
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