Lochinvar 2072, 502 Startup, Pre-start checklist, Starting the filter system, Check for gas leaks

Page 45

Installation & Operation Manual

6 Startup

Pre-start checklist

Before attempting to start the pool heater verify that the following items have been checked:

1.Verify proper location and installation of the pool heater.

2.Check gas piping and ensure the gas line is purged of all air.

3.Ensure that the pool is properly filled.

4.DO NOT operate pool heater if improperly filled.

5.Check to ensure that all water connections are tight.

6.Relief valve has been piped to a suitable floor drain.

7.Combustion air openings are not obstructed in any way.

8.Ensure all air is purged from the water piping.

Starting the filter system

Verify proper installation of the pool heater temperature controls and the installation of the 110°F auxiliary limit and pool supply sensor in the mixed discharge water from the filter piping to the pool. Clean the filter. Start the filter pump. Be sure all air is out of all the lines including the pressure connection. Ensure that the pool heater is not “air bound” by manually opening the temperature and pressure relief valve. Leave the valve open until a steady flow of water is observed at the discharge from the valve. Close the valve and complete filling the system.

Note: Backwash the filter when the G.P.M. filtration rates are too low to meet local codes or state code. A high temperature rise across the pool heater is also an indication of low flow in the filter system. Sustained low flow to the pool heater will result in cycling of the heater on the limit controls and possible opening of the relief valve.

Check for gas leaks

3.Disinfection and Oxidation

4.pH Control and Total Alkalinity

5.Algae Control

6.Water Balance

The water chemistry of your pool changes daily due to natural evaporation of the water and the addition of chemicals. Chemicals are used to sanitize and control algae growth in the pool. Their addition must be carefully monitored. The accumulation of minerals or scale in the pool heater due to a chemical imbalance will cause a non-warrantable failure of the heat exchanger and its components. pH is an important factor in maintaining proper balance in your pool water. pH is the measurement of the acidity or alkalinity of water. The following chart shows the recommended pH range and what can happen when the pH increases or decreases from the ideal of 7.2 to 7.8.

Figure 6-1_ pH Scale

If the pH becomes too high, it lowers the ability of chlorine to destroy bacteria and algae, water can become cloudy, filter elements may become blocked, and scale formation will occur in the pool and heat exchanger. If the pH becomes too low the water becomes acidic. You can have eye burn and skin irritation, etching of the plaster, corrosion of metal fixtures and the resulting stains on the plaster, degradation of sand and gravel filters and corrosion of the copper tubes in the heat exchanger.

￿WARNING

￿WARNING

Before starting the unit, and during initial operation, smell near the floor and around the unit for gas odorant or any unusual odor. Remove the front access panel and smell the interior of the pool heater enclosure. Do not proceed with startup if there is any indication of a gas leak. Use an approved leak detection solution. Repair any leaks at once.

The venting system must be installed so that it will prevent flue gas spillage and carbon monoxide emissions, which will result in severe personal injury or death.

Damage to the pool heater, including the pumped bypass, due to improper chemical water balance is non-warrantable. Proper chemical water balance, as indicated by use of the calcium saturation and Ryznar indexes, is required to maintain warranty status of the pool heater and its components. These indexes are designed to help prevent scaling and corrosive damage to the pool and all associated equipment. We recommend the use of a commercial or professional grade test kit to maintain chemical water balance. See your local pool professional for assistance.

Freeze protection

Check/control water chemistry

￿CAUTION Salt levels above 5000 ppm can cause corrosion damage to heat exchangers.

Factors which affect pool water and, more importantly, the efficiency of your new pool heater are:

1.Proper Filtration

2.Proper Circulation

Although this pool heater is CSA design certified for outdoor installations - such installations are not recommended in areas where the pool heater will be operated in the winter months and the danger of freezing exists. Proper freeze protection must be provided for outdoor installations; pool heaters installed in unheated equipment rooms or where temperatures may drop to the freezing point or lower.

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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 SpecificationsLocation of unit Determine unit locationIndoor clearances from combustible construction Freeze protectionLocation Outdoor pool heater installationHydronic systems anti-freeze Combustion and ventilation airMinimum Recommended Combustion AIR Supply to Equipment Room Outside Combustion Air Using Direct VentingCombustion air filter Exhaust fansIdentify your appliance’s vent system VentingCAT IV Flue pipe materials CAT I Negative pressure non-condensingDraft Venting Vent system optionsGeneral information Venting supportBarometric damper location Negative draft Conventional negative draft venting seeFlue outlet piping Common Venting SystemsMasonry chimney installations Vertical vent termination clearances and locationInspection of a masonry chimney 1Vent Termination from Peaked Roof 10 ft. or Less From Ridge Combustion air inlet piping Vertical DirectAire venting seeLength of air inlet pipe Sidewall air inletVertical Rooftop Air Inlet Combined air inlet pointsClearances Directaire Kits Model Horizontal KIT Vertical KIT Venting of flue productsSidewall with fan Sidewall venting seeSidewall venting termination Sidewall vent termination clearances and locationSidewall 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 Horizontal DV venting termination Masonry chimney installationHorizontal Vent Termination Clearances and Location Combustion air inlet pipingAir inlet piping materials Connecting the air inlet pipe to the unitLength of air inlet pipe Sealing PVC, CPVC, ABS, dryer vent, and flex duct vent pipeVertical and sidewall combustion air inlet Multiple sidewall direct vent installationsHorizontal combustion air inlet clearances Vertical Combustion Air Inlet ClearancesOutdoor installation see Outdoor vent/air inlet locationOutdoor vent cap kit Gas connections Connecting to gas supplyGas connection Gas pressure testCombination gas valves Suggested GAS Pipe Size for Single Unit Installations ModelGas train and controls Venting of combination gas valvesChecking gas supply pressure GAS Piping Size ChartCirculating pump Water connections502 752 Models 992 1442 ModelsInitial set-up of maximum water flow Heat exchangerMinimum Pump Performance Auxiliary Mixed Water Limit Control3Heater 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 Pump purge delay Water flow switchPump purge pre-running delay Relief valveWay Automatic Bypass Valve Wiring Way automatic bypass valve wiringRemote Wire Connection Electrical connectionsPool heater operating control module Installation must comply withLine voltage connections AMP Draw DataPool return sensor 2-wire Louver proving switchPool supply/limit sensor 4-wire Low voltage connectionsWiring of the cascade Alarm contactsStartup Pre-start checklistStarting the filter system Check for gas leaksCheck vent and air piping Check thermostat circuitsPlacing the pool heater in operation Start the pool heater2Operating 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 UpdownInstaller Access modesUser To save parameters and exit programmingStatus display screens Sysrtn Open Unit Pump DelaySysrtn Shorted STG DemandMaintenance Maintenance and annual startup Service technicianOwner maintenance Address reported problems MaintenanceInspect appliance area Inspect appliance interiorCheck control settings Check all wiringCheck relief valve Inspect/replace hot surface igniter Ignition system checkoutInspect 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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