Lochinvar 2072, 502 General information, Venting support, Barometric damper location

Page 15

Installation & Operation Manual

2 Venting (continued)

General information

You must supply adequate combustion and ventilation air to this unit. You must provide minimum clearances for the vent terminal from adjacent buildings, windows that open, and building openings. Follow all requirements set forth in the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, the latest edition of CAN/CGA Standard B149 Installation Code for Gas Burning Appliances and Equipment or applicable local building codes. Vent installations for connection to gas vents or chimneys must be in accordance with “Venting of Equipment” of the above-mentioned standards.

NOTICE

Examine the venting system at least once each year. Check all joints and vent pipe connections for tightness. Also check for corrosion or deterioration. If you find any problems, correct them at once.

Venting support

Support horizontal portions of the venting system to prevent sagging. Provide an upward slope of at least 1/4 inch per foot (21mm/m) on all horizontal runs from the unit to the vertical flue run or to the vent terminal on sidewall venting installations.

Do not use an existing chimney as a raceway if another appliance or fireplace is vented through the chimney. The weight of the venting system must not rest on the unit. Provide adequate support of the venting system. Follow all local and applicable codes. Secure and seal all vent connections. Follow the installation instructions from the vent material manufacturer.

Barometric damper location

Any venting system option that requires a barometric damper must adhere to the following directions for optimum performance. The preferred location for the barometric damper is in a tee or collar installed in the vertical pipe rising from the unit’s flue outlet. The barometric damper MUST NOT be installed in a bull head tee installed on the unit’s flue outlet. The tee or collar containing the barometric damper should be approximately three feet vertically above the connection to the unit’s flue outlet. This location ensures that any positive velocity pressure from the unit’s internal combustion fan is dissipated and the flue products are rising due to buoyancy generated from the temperature of the flue products. Adjust the weights on the damper to ensure that draft is maintained within the specified range.

TABLE - 2A

FLUE AND AIR INLET PIPE SIZES

MODEL

FLUE SIZE

AIR INLET SIZE

MODEL

FLUE SIZE

AIR INLET SIZE*

 

 

 

 

 

 

502

6"

6"

1262

12"

12"

652

8"

8"

1442

12"

12"

752

8"

8"

1802

14"

12"

992

10"

10"

2072

14"

12"

*Minimum diameter for air inlet pipe. Installer may increase diameter one pipe size for ease of installation, if needed.

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Contents Save this manual for future reference Installation & Operation Manual Models 502Contents Please read before proceeding Special instructionsRemoval of Combustion Chamber Lining or Base Panels Owner warning Safety informationCopper-fin2- How it works Copper-fin2- How it works Copper-fin2- How it works Ratings SpecificationsFreeze protection Determine unit locationLocation of unit Indoor clearances from combustible constructionCombustion and ventilation air Outdoor pool heater installationLocation Hydronic systems anti-freezeMinimum Recommended Combustion AIR Supply to Equipment Room Outside Combustion Air Using Direct VentingCombustion air filter Exhaust fansCAT I Negative pressure non-condensing VentingIdentify your appliance’s vent system CAT IV Flue pipe materialsDraft Venting Vent system optionsGeneral information Venting supportBarometric damper location Common Venting Systems Conventional negative draft venting seeNegative draft Flue outlet pipingMasonry chimney installations Vertical vent termination clearances and locationInspection of a masonry chimney 1Vent Termination from Peaked Roof 10 ft. or Less From Ridge Sidewall air inlet Vertical DirectAire venting seeCombustion air inlet piping Length of air inlet pipeVertical Rooftop Air Inlet Combined air inlet pointsClearances Directaire Kits Model Horizontal KIT Vertical KIT Venting of flue productsSidewall vent termination clearances and location Sidewall venting seeSidewall with fan Sidewall venting terminationSidewall venting without fan Drain tee installationModels 502 Venting of flue products Horizontal DirectAire venting Powered Venting seeDirect venting see Flue outlet pipingVertical DV venting termination Combustion air inlet piping Masonry chimney installationHorizontal DV venting termination Horizontal Vent Termination Clearances and LocationSealing PVC, CPVC, ABS, dryer vent, and flex duct vent pipe Connecting the air inlet pipe to the unitAir inlet piping materials Length of air inlet pipeVertical Combustion Air Inlet Clearances Multiple sidewall direct vent installationsVertical and sidewall combustion air inlet Horizontal combustion air inlet clearancesOutdoor installation see Outdoor vent/air inlet locationOutdoor vent cap kit Gas pressure test Connecting to gas supplyGas connections Gas connectionVenting of combination gas valves Suggested GAS Pipe Size for Single Unit Installations ModelCombination gas valves Gas train and controlsChecking gas supply pressure GAS Piping Size Chart992 1442 Models Water connectionsCirculating pump 502 752 ModelsAuxiliary Mixed Water Limit Control Heat exchangerInitial set-up of maximum water flow Minimum Pump Performance3Heater Within 15 feet of Pool Piping 6Cascaded Heaters Beyond 15 feet of Pool Piping Pool Return Sensor Location MIN Primary Automatic bypass valve cover installation Pumped Automatic BypassOutdoor operation 3-way valve cover Relief valve Water flow switchPump purge delay Pump purge pre-running delayElectrical connections Way automatic bypass valve wiringWay Automatic Bypass Valve Wiring Remote Wire ConnectionAMP Draw Data Installation must comply withPool heater operating control module Line voltage connectionsLow voltage connections Louver proving switchPool return sensor 2-wire Pool supply/limit sensor 4-wireWiring of the cascade Alarm contactsCheck for gas leaks Pre-start checklistStartup Starting the filter systemStart the pool heater Check thermostat circuitsCheck vent and air piping Placing the pool heater in operation2Operating Instructions Set clock Configuration of the cascadeGeneral Operating informationPool heater temperature regulation DAY Switching on Sequence CascadeSequence of the cascade Sequence of operation Copper-fin2control module MENU/EXIT Display Screen ENTER/RESET UpdownTo save parameters and exit programming Access modesInstaller UserStatus display screens STG Demand Unit Pump DelaySysrtn Open Sysrtn ShortedMaintenance Maintenance and annual startup Service technicianOwner maintenance Inspect appliance interior MaintenanceAddress reported problems Inspect appliance areaIgnition system checkout Check all wiringCheck control settings Check relief valve Inspect/replace hot surface igniterInspect and clean burner Perform start-up and checks Check burner flameCheck flue gas passageways Oiled bearing circulators Review with ownerDigital Harness Connection diagramController LOW Voltage Ladder diagramRuntime Contacts 2BOARDCONNECTION Outdoor S5SENSOR POOL2ND Page
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2072, 502 specifications

Lochinvar 2072,502 is an innovative and robust water-heating solution tailored for residential and commercial applications. This model represents a significant advancement in energy efficiency and performance, catering to the dynamic heating requirements of modern buildings.

One of the standout features of Lochinvar 2072,502 is its advanced thermal efficiency. With an impressive AFUE (Annual Fuel Utilization Efficiency) rating, the unit delivers exceptional heat output while minimizing energy consumption. This not only reduces utility bills for homeowners and businesses but also supports sustainability efforts by decreasing carbon footprints.

The Lochinvar 2072,502 incorporates cutting-edge technologies that set it apart in the market. It is equipped with advanced control systems that allow users to precisely manage heating outputs, ensuring optimal comfort while conserving energy. The user-friendly digital display provides real-time data, allowing for efficient monitoring and control.

Another significant characteristic of the Lochinvar 2072,502 is its robust stainless-steel construction. This feature enhances the unit's durability and longevity, ensuring reliable performance even in challenging conditions. The high-quality materials also contribute to maintaining consistent water temperatures, which is essential for both residential and commercial heating needs.

The Lochinvar 2072,502 operates silently, making it ideal for installations in areas where noise is a concern. Its compact design allows for flexible installation options, fitting seamlessly into various spaces, whether it’s a utility room, basement, or outdoor area.

Furthermore, the unit supports multiple venting options, accommodating different building architectures and layouts. This versatility makes it an ideal choice for new builds and retrofitting existing systems.

Maintenance is streamlined with the Lochinvar 2072,502, as it features a self-diagnostics system that simplifies troubleshooting. Regular service check-ups are made easier with accessible components, allowing technicians to perform maintenance tasks efficiently.

In summary, the Lochinvar 2072,502 stands out for its high efficiency, advanced technology, durability, and flexible installation options. It is an ideal choice for those seeking a reliable and technologically advanced water-heating solution that meets the challenges of contemporary heating demands while promoting energy savings and environmental responsibility.
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