Lochinvar 2072, 502 operation manual Outside Combustion Air Using Direct Venting

Page 11

Installation & Operation Manual

1 Determine unit location (continued)

All dimensions are based on net free area in square inches. Metal louvers or screens reduce the free area of a combustion air opening a minimum of approximately 25%. Check with louver manufacturers for exact net free area of louvers. Where two openings are provided, one must be within 12" (30 cm) of the ceiling and one must be within 12" (30 cm) of the floor of the equipment room. Each opening must have a minimum net free area as specified in TABLE 1C, this page. Single openings shall be installed within 12" (30 cm) of the ceiling.

Figure 1-5_Outside Combustion Air Through Ducts

4. Outside Combustion Air - Using Direct Venting

With this option, you can connect combustion air vent piping directly to the unit. See the information under Direct Venting starting on page 26 for specific information regarding this option.

￿CAUTION

The combustion air supply must be completely free of any flammable vapors that may ignite or chemical fumes which may be corrosive to the appliance. Common corrosive chemical fumes which must be avoided are fluorocarbons and other halogenated compounds, most commonly present as refrigerants or solvents, such as Freon, trichlorethylene, perchlorethylene, chlorine, etc. These chemicals, when burned, form acids which quickly attack the heat exchanger finned tubes, headers, flue collectors, and the vent system. The result is improper combustion and a non- warrantable, premature unit failure.

TABLE - 1C

MINIMUM RECOMMENDED COMBUSTION

AIR SUPPLY TO EQUIPMENT ROOM

 

*Outside Air from

 

Inside Air from

Inside Air from

Model

2 Openings Directly from

*Outside Air from

2 Ducts Delivered from

2 Ducts Delivered from Interior

Outdoors

1 Opening Directly

Outdoors

Space

Number

Top

Bottom

from Outdoors, in2

Top

Bottom

Top

Bottom

 

 

Opening, in2

Opening, in2

 

Opening, in2

Opening, in2

Opening, in2

Opening, in2

502

125

125

167

250

250

500

500

(806 cm2)

(806 cm2)

(1077 cm2)

(1613 cm2)

(1613 cm2)

(3226 cm2)

(3226 cm2)

652

163

163

217

325

325

650

650

(1052 cm2)

(1052 cm2)

(1400 cm2)

(2097 cm2)

(2097 cm2)

(4194 cm2)

(4194 cm2)

752

188

188

250

375

375

750

750

(1213 cm2)

(1213 cm2)

(1613 cm2)

(2420 cm2)

(2420 cm2)

(4839 cm2)

(4839 cm2)

992

248

248

330

495

495

990

990

(1600 cm2)

(1600 cm2)

(2129 cm2)

(3194 cm2)

(3194 cm2)

(6388 cm2)

(6388 cm2)

1262

315

315

420

630

630

1260

1260

(2032cm2)

(2032cm2)

(2710 cm2)

(4065 cm2)

(4065 cm2)

(8130 cm2)

(8130 cm2)

1442

360

360

480

720

720

1440

1440

(2323cm2)

(2323cm2)

(3097 cm2)

(4646 cm2)

(4646 cm2)

(9291 cm2)

(9291 cm2)

1802

450

450

600

900

900

1800

1800

(2903cm2)

(2903cm2)

(3871 cm2)

(5807 cm2)

(5807 cm2)

(11614 cm2)

(11614 cm2)

2072

518

518

690

1035

1035

2070

2070

(3342cm2)

(3342cm2)

(4452 cm2)

(6678 cm2)

(6678 cm2)

(13356 cm2)

(13356 cm2)

*Outside air openings shall directly communicate with the outdoors. When combustion air is drawn from the outside through a duct, the net free area of each of the two openings must have twice (2 times) the free area required for Outside Air/2 Openings. The above requirements are for the pool heater only; additional gas fired appliances in the equipment room will require an increase in the net free area to supply adequate combustion air for all appliances.

11

Page 10 Page 12
Image 11
Page 10 Page 12
Contents Save this manual for future reference Installation & Operation Manual Models 502Contents Removal of Combustion Chamber Lining or Base Panels Please read before proceedingSpecial instructions 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 optionsBarometric damper location General informationVenting support Common Venting Systems Conventional negative draft venting seeNegative draft Flue outlet pipingInspection of a masonry chimney Masonry chimney installationsVertical vent termination clearances and location 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 pipeClearances Vertical Rooftop Air InletCombined air inlet points 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 seeVertical DV venting termination Direct venting seeFlue outlet piping 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 vent cap kit Outdoor installation seeOutdoor vent/air inlet location 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 Outdoor operation 3-way valve cover Automatic bypass valve cover installationPumped Automatic Bypass 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 Sequence of the cascade DAY Switching on SequenceCascade 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 ShortedOwner maintenance Maintenance Maintenance and annual startupService technician Inspect appliance interior MaintenanceAddress reported problems Inspect appliance areaIgnition system checkout Check all wiringCheck control settings Check relief valve Inspect/replace hot surface igniterCheck flue gas passageways Inspect and clean burnerPerform start-up and checks Check burner flame Oiled bearing circulators Review with ownerDigital Harness Connection diagramController LOW Voltage Ladder diagramRuntime Contacts 2BOARDCONNECTION Outdoor S5SENSOR POOL2ND Page
Related manuals
Manual 44 pages 17.92 Kb Manual 16 pages 36.89 Kb

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.
Top Page Image Contents