Lochinvar 2072, 502 operation manual Status display screens

Page 55

Installation & Operation Manual

7 Operating information (continued)

Status display screens

Status Display Screens

By using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, you can navigate through the 11 display screens. Each screen will contain two (2) viewable items. The following is a description of the individual items and what they can display:

Screen #

Display Shows

Description

 

HTR: OFF

The unit has been turned OFF by the Enter/Reset button on the

 

SMART SYSTEM display panel.

 

 

 

 

 

 

 

The unit’s water temperature set point has been met and there is

 

HTR: STAND-BY

no call for heat demand being received from either the external

 

 

thermostat or the BMS.

 

 

 

 

HTR: SETPOINT MET

The unit’s water temperature set point has been met, but is still

 

receiving a call for heat from either a remote thermostat or a BMS.

 

 

 

 

 

 

HTR: PRE-PURGE

The unit has initiated the combustion air purge cycle upon a call for

 

heat.

Screen #1

 

 

 

 

The unit has begun the igniter heatup cycle prior to the trial for

Line 1

 

HTR: IGNITER * ON

ignition. Display will show IGNITER A or IGNITER B depending on

 

 

 

which stage has priority.

 

 

 

 

HTR: RUN STG ****

The unit has fired and is running at the displayed number of stages

 

(1,2,3,4).

 

 

 

 

 

 

HTR: POST-PURGE

The call for heat has been satisfied and the unit runs the fan to clear

 

the combustion chamber and vent system of residual flue products.

 

 

 

 

 

 

HTR: SERVICE MODE

The unit has been placed in a temporary mode that will allow the unit

 

to fire for the purpose of combustion analysis.

 

 

 

 

 

Screen #1

OUT: ***F

The outlet temperature is displayed by the control.

Line 2

 

 

 

OUT: OPEN

The control does not detect the outlet sensor.

OUT: SHORTED

The outlet sensor wires or the sensor itself has become shorted.

Press the Next arrow key on the SMART SYSTEM display to access Screen #2.

 

Screen #2

INLET: ***F

The inlet temperature is displayed by the control.

 

 

Line 1

 

 

 

 

 

INLET: OPEN

The control does not detect the inlet sensor.

 

 

 

 

 

 

 

 

 

 

 

INLET: SHORTED

The inlet sensor wires or the sensor itself has become shorted.

 

 

 

 

 

 

 

Screen #2

RISE: ***F

The difference between the inlet temperature and the outlet temperature

 

 

Line 2

is displayed.

 

 

 

 

 

 

 

 

 

Press the Next arrow key on the SMART SYSTEM display to access Screen #3.

Screen #3

Line 1

SYSSUP: ***F

The system supply temperature is displayed by the control.

 

 

SYSSUP: OPEN

The control does not detect the system supply sensor.

 

 

SYSSUP: SHORTED

The system supply sensor wires or the sensor itself has become shorted.

 

 

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Contents Save this manual for future reference Installation & Operation Manual Models 502Contents Special instructions Please read before proceedingRemoval 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 optionsVenting support General informationBarometric damper location Common Venting Systems Conventional negative draft venting seeNegative draft Flue outlet pipingVertical vent termination clearances and location Masonry chimney installationsInspection 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 pipeCombined air inlet points Vertical Rooftop Air InletClearances 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 seeFlue outlet piping Direct venting seeVertical 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 vent/air inlet location Outdoor installation seeOutdoor 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 Pumped Automatic Bypass Automatic bypass valve cover installationOutdoor 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 Cascade DAY Switching on SequenceSequence 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 ShortedService technician Maintenance Maintenance and annual startupOwner maintenance Inspect appliance interior MaintenanceAddress reported problems Inspect appliance areaIgnition system checkout Check all wiringCheck control settings Check relief valve Inspect/replace hot surface igniterPerform start-up and checks Check burner flame Inspect and clean burnerCheck 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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