Lochinvar 1.5 service manual Gas valve adjustment procedure, Models 1.3

Page 50

3 Troubleshooting

Gas valve adjustment procedure

If adjustment of the gas valve is deemed necessary, use the following procedures: (Note: The procedures below are model specific.)

CAUTION Under normal operating conditions this valve should not need adjusting.

Model 1.0

Locate the throttle adjustment screw on top of the gas valve, see FIG. 3-2. Using a screwdriver, turn the screw a 1/4 turn counterclockwise to increase CO2 levels or a 1/4 turn clockwise to decrease CO2 levels. After one adjustment on the valve, follow the Combustion Analysis Procedure on page 49 of this manual to measure the combustion.

If combustion is still not within the specified range, repeat the procedure. This procedure SHOULD NOT be performed more than four (4) times. If after four (4) adjustments and the combustion is still not within the specified range, revisit the possible causes in Table 3F on page 49 or replace the gas valve.

Figure 3-2Gas Valve Adjustment: Model 1.0

THROTTLE ADJUSTMENT SCREW

Service Manual

Models 1.3 - 1.5

Locate the throttle adjustment screw on top of the gas valve, see FIG. 3-3. Using an Allen wrench, turn the screw a 1/4 turn counterclockwise to increase CO2 levels or a 1/4 turn clockwise to decrease CO2 levels. After one adjustment on the valve, follow the Combustion Analysis Procedure on page 49 of this manual to measure the combustion.

If combustion is still not within the specified range, repeat the procedure. This procedure SHOULD NOT be performed more than four (4) times. If after four (4) adjustments and the combustion is still not within the specified range, revisit the possible causes in Table 3F on page 49 or replace the gas valve.

Figure 3-3Gas Valve Adjustment: Models 1.3 - 1.5

THROTTLE ADJUSTMENT

SCREW (REMOVE BLUE COVER)

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Contents Models 1.0, 1.3, Contents Handling ceramic fiber materials Niosh stated First AidTroubleshooting ServiceMaintenance Armor X2 display Control inputs Primary Smart Control ModuleSecondary Smart Touch Control Module Primary Control outputsSequence of operation General OperationHow the water heater operates Sequence of operation Sequence of operationThis table lists the parameters and where to access them Parameter tableBMS Viewable and changeable control parameters Status ScreenService Details Screen Service Main Screen Setup Screen Service/Setup Parameters Screen Service Set Point Parameters Screen Night Setback Parameters Screen Cascade Parameters Screen Cascade Operation10Vdc BMS Parameters Screen 10Vdc OperationService Cascade Screen Service Temps Screen Burners Screen Graph Select Screen History Screen Service Mode Screen Maintenance Maintenance and annual startup Inspect water heater area Address reported problemsClean condensate trap Inspect water heater interiorCheck expansion tank Check water heater relief valve Flue vent system and air pipingCheck water system Check control settings Check ignition ground wiringCheck all water heater wiring Check flame signalOiled bearing circulators Cleaning water heater heat exchangerCheck Delta T Troubleshooting Alarm ScreenCheck control module fuses Before troubleshootingCheck the following Troubleshooting Checking temperature sensors Temperature ResistanceFault Cause Corrective Action Drain Blocked Flow SwitchCondensate Flame outWhile Running Light cont’dFlame Lost High Limit Manual ResetCont’d Temp SW Automatic ResetHigh Limit / HEX Blower RPM’sSensor Open Louver Proving SwitchToo High Sensor ShortedLow Resets Try LaterAir Flow Too Flap ValveWriting to Internal FaultNo Error Stored MemosOr Obstruction Combustion Analysis ProcedureGas Valve Adjustment Gas Supply PressureModels 1.3 Gas valve adjustment procedureModel
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1.5, 1.3, 1 specifications

Lochinvar 1 is a remarkable achievement in the realm of modern technology and engineering. As a powerful and efficient water heater, it has been designed to cater to a wide range of residential and commercial needs. One of the standout features of Lochinvar 1 is its advanced heating technology, which incorporates a high-efficiency condensing design. This technology allows the unit to achieve impressive energy savings by maximizing heat transfer while minimizing energy consumption.

The Lochinvar 1 utilizes a stainless steel heat exchanger that enhances durability and corrosion resistance. This not only extends the lifespan of the unit but also ensures consistent performance over time. Coupled with a user-friendly control system, users can easily adjust settings and monitor performance, enhancing overall convenience and usability.

Another key characteristic of the Lochinvar 1 is its compact design, making it suitable for a variety of installation environments. Whether in a residential basement or a commercial utility room, the unit’s space-saving configuration allows for efficient use of available area without compromising on capability.

Safety features are integral to the Lochinvar 1, providing peace of mind for users. The unit is equipped with advanced monitoring systems that can detect irregularities and automatically shut down the system if necessary. This not only protects the equipment but also enhances the safety of the environment in which it operates.

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Moreover, the unit supports various venting options, offering flexibility during installation. Whether using traditional vertical venting or innovations like direct venting, Lochinvar 1 accommodates different building designs and local codes, making it highly versatile.

In conclusion, Lochinvar 1 epitomizes the melding of efficiency, reliability, and user-friendly technology. With its high-performance features, robust safety systems, and adaptable installation options, it stands out as a forefront player in the water heating industry, meeting the diverse needs of today's consumers and businesses alike.
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